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authorAlexander Harkness <bearbin@gmail.com>2013-07-29 13:13:03 +0200
committerAlexander Harkness <bearbin@gmail.com>2013-07-29 13:13:03 +0200
commit53e22b11857fed62e2313d6d84d90f88ed412ffb (patch)
treec61e56725da7dff0154d566722651e2c39c9d6c6 /source/Generating
parentWebAdmin: Removed the duplicate memory usage querying (diff)
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Diffstat (limited to '')
-rw-r--r--source/Generating/Caves.cpp1940
-rw-r--r--source/Generating/Caves.h204
-rw-r--r--source/Generating/ChunkDesc.cpp1156
-rw-r--r--source/Generating/ComposableGenerator.cpp1048
-rw-r--r--source/Generating/ComposableGenerator.h350
-rw-r--r--source/Generating/DistortedHeightmap.cpp838
-rw-r--r--source/Generating/DistortedHeightmap.h204
-rw-r--r--source/Generating/EndGen.cpp434
-rw-r--r--source/Generating/EndGen.h138
-rw-r--r--source/Generating/MineShafts.cpp2846
-rw-r--r--source/Generating/MineShafts.h122
-rw-r--r--source/Generating/Noise3DGenerator.cpp1162
-rw-r--r--source/Generating/Noise3DGenerator.h212
-rw-r--r--source/Generating/Ravines.cpp1062
-rw-r--r--source/Generating/Ravines.h92
15 files changed, 5904 insertions, 5904 deletions
diff --git a/source/Generating/Caves.cpp b/source/Generating/Caves.cpp
index 2bfef8054..4221ea187 100644
--- a/source/Generating/Caves.cpp
+++ b/source/Generating/Caves.cpp
@@ -1,970 +1,970 @@
-
-// Caves.cpp
-
-// Implements the various cave structure generators:
-// - cStructGenWormNestCaves
-// - cStructGenDualRidgeCaves
-// - cStructGenMarbleCaves
-// - cStructGenNetherCaves
-
-/*
-WormNestCave generator:
-Caves are generated in "nests" - groups of tunnels generated from a single point.
-For each chunk, all the nests that could intersect it are generated.
-For each nest, first the schematic structure is generated (tunnel from ... to ..., branch, tunnel2 from ... to ...)
-Then each tunnel is randomized by inserting points in between its ends.
-Finally each tunnel is smoothed and Bresenham-3D-ed so that it is a collection of spheres with their centers next to each other.
-When the tunnels are ready, they are simply carved into the chunk, one by one.
-To optimize, each tunnel keeps track of its bounding box, so that it can be skipped for chunks that don't intersect it.
-
-MarbleCaves generator:
-For each voxel a 3D noise function is evaluated, if the value crosses a boundary, the voxel is dug out, otherwise it is kept.
-Problem with this is the amount of CPU work needed for each chunk.
-Also the overall shape of the generated holes is unsatisfactory - there are whole "sheets" of holes in the ground.
-
-DualRidgeCaves generator:
-Instead of evaluating a single noise function, two different noise functions are multiplied. This produces
-regular tunnels instead of sheets. However due to the sheer amount of CPU work needed, the noise functions need to be
-reduced in complexity in order for this generator to be useful, so the caves' shapes are "bubbly" at best.
-*/
-
-#include "Globals.h"
-#include "Caves.h"
-
-
-
-
-
-/// How many nests in each direction are generated for a given chunk. Must be an even number
-#define NEIGHBORHOOD_SIZE 8
-
-
-
-
-
-const int MIN_RADIUS = 3;
-const int MAX_RADIUS = 8;
-
-
-
-
-
-struct cCaveDefPoint
-{
- int m_BlockX;
- int m_BlockY;
- int m_BlockZ;
- int m_Radius;
-
- cCaveDefPoint(int a_BlockX, int a_BlockY, int a_BlockZ, int a_Radius) :
- m_BlockX(a_BlockX),
- m_BlockY(a_BlockY),
- m_BlockZ(a_BlockZ),
- m_Radius(a_Radius)
- {
- }
-} ;
-
-typedef std::vector<cCaveDefPoint> cCaveDefPoints;
-
-
-
-
-
-/// A single non-branching tunnel of a WormNestCave
-class cCaveTunnel
-{
- // The bounding box, including the radii around defpoints:
- int m_MinBlockX, m_MaxBlockX;
- int m_MinBlockY, m_MaxBlockY;
- int m_MinBlockZ, m_MaxBlockZ;
-
- /// Generates the shaping defpoints for the ravine, based on the ravine block coords and noise
- void Randomize(cNoise & a_Noise);
-
- /// Refines (adds and smooths) defpoints from a_Src into a_Dst; returns false if no refinement possible (segments too short)
- bool RefineDefPoints(const cCaveDefPoints & a_Src, cCaveDefPoints & a_Dst);
-
- /// Does rounds of smoothing, two passes of RefineDefPoints(), as long as they return true
- void Smooth(void);
-
- /// Linearly interpolates the points so that the maximum distance between two neighbors is max 1 block
- void FinishLinear(void);
-
- /// Calculates the bounding box of the points present
- void CalcBoundingBox(void);
-
-public:
- cCaveDefPoints m_Points;
-
- cCaveTunnel(
- int a_BlockStartX, int a_BlockStartY, int a_BlockStartZ, int a_StartRadius,
- int a_BlockEndX, int a_BlockEndY, int a_BlockEndZ, int a_EndRadius,
- cNoise & a_Noise
- );
-
- /// Carves the tunnel into the chunk specified
- void ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
- );
-
- #ifdef _DEBUG
- AString ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const;
- #endif // _DEBUG
-} ;
-
-typedef std::vector<cCaveTunnel *> cCaveTunnels;
-
-
-
-
-
-/// A collection of connected tunnels, possibly branching.
-class cStructGenWormNestCaves::cCaveSystem
-{
-public:
- // The generating block position; is read directly in cStructGenWormNestCaves::GetCavesForChunk()
- int m_BlockX;
- int m_BlockZ;
-
- cCaveSystem(int a_BlockX, int a_BlockZ, int a_MaxOffset, int a_Size, cNoise & a_Noise);
- ~cCaveSystem();
-
- /// Carves the cave system into the chunk specified
- void ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
- );
-
- #ifdef _DEBUG
- AString ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const;
- #endif // _DEBUG
-
-protected:
- int m_Size;
- cCaveTunnels m_Tunnels;
-
- void Clear(void);
-
- /// Generates a_Segment successive tunnels, with possible branches. Generates the same output for the same [x, y, z, a_Segments]
- void GenerateTunnelsFromPoint(
- int a_OriginX, int a_OriginY, int a_OriginZ,
- cNoise & a_Noise, int a_Segments
- );
-
- /// Returns a radius based on the location provided.
- int GetRadius(cNoise & a_Noise, int a_OriginX, int a_OriginY, int a_OriginZ);
-} ;
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cCaveTunnel:
-
-cCaveTunnel::cCaveTunnel(
- int a_BlockStartX, int a_BlockStartY, int a_BlockStartZ, int a_StartRadius,
- int a_BlockEndX, int a_BlockEndY, int a_BlockEndZ, int a_EndRadius,
- cNoise & a_Noise
-)
-{
- m_Points.push_back(cCaveDefPoint(a_BlockStartX, a_BlockStartY, a_BlockStartZ, a_StartRadius));
- m_Points.push_back(cCaveDefPoint(a_BlockEndX, a_BlockEndY, a_BlockEndZ, a_EndRadius));
-
- if ((a_BlockStartY <= 0) && (a_BlockEndY <= 0))
- {
- // Don't bother detailing this cave, it's under the world anyway
- return;
- }
-
- Randomize(a_Noise);
- Smooth();
-
- // We know that the linear finishing won't affect the bounding box, so let's calculate it now, as we have less data:
- CalcBoundingBox();
-
- FinishLinear();
-}
-
-
-
-
-
-void cCaveTunnel::Randomize(cNoise & a_Noise)
-{
- // Repeat 4 times:
- for (int i = 0; i < 4; i++)
- {
- // For each already present point, insert a point in between it and its predecessor, shifted randomly.
- int PrevX = m_Points.front().m_BlockX;
- int PrevY = m_Points.front().m_BlockY;
- int PrevZ = m_Points.front().m_BlockZ;
- int PrevR = m_Points.front().m_Radius;
- cCaveDefPoints Pts;
- Pts.reserve(m_Points.size() * 2 + 1);
- Pts.push_back(m_Points.front());
- for (cCaveDefPoints::const_iterator itr = m_Points.begin() + 1, end = m_Points.end(); itr != end; ++itr)
- {
- int Random = a_Noise.IntNoise3DInt(PrevX, PrevY, PrevZ + i) / 11;
- int len = (PrevX - itr->m_BlockX) * (PrevX - itr->m_BlockX);
- len += (PrevY - itr->m_BlockY) * (PrevY - itr->m_BlockY);
- len += (PrevZ - itr->m_BlockZ) * (PrevZ - itr->m_BlockZ);
- len = 3 * (int)sqrt((double)len) / 4;
- int Rad = std::min(MAX_RADIUS, std::max(MIN_RADIUS, (PrevR + itr->m_Radius) / 2 + (Random % 3) - 1));
- Random /= 4;
- int x = (itr->m_BlockX + PrevX) / 2 + (Random % (len + 1) - len / 2);
- Random /= 256;
- int y = (itr->m_BlockY + PrevY) / 2 + (Random % (len / 2 + 1) - len / 4);
- Random /= 256;
- int z = (itr->m_BlockZ + PrevZ) / 2 + (Random % (len + 1) - len / 2);
- Pts.push_back(cCaveDefPoint(x, y, z, Rad));
- Pts.push_back(*itr);
- PrevX = itr->m_BlockX;
- PrevY = itr->m_BlockY;
- PrevZ = itr->m_BlockZ;
- PrevR = itr->m_Radius;
- }
- std::swap(Pts, m_Points);
- }
-}
-
-
-
-
-
-bool cCaveTunnel::RefineDefPoints(const cCaveDefPoints & a_Src, cCaveDefPoints & a_Dst)
-{
- // Smoothing: for each line segment, add points on its 1/4 lengths
- bool res = false;
- int Num = a_Src.size() - 2; // this many intermediary points
- a_Dst.clear();
- a_Dst.reserve(Num * 2 + 2);
- cCaveDefPoints::const_iterator itr = a_Src.begin() + 1;
- a_Dst.push_back(a_Src.front());
- int PrevX = a_Src.front().m_BlockX;
- int PrevY = a_Src.front().m_BlockY;
- int PrevZ = a_Src.front().m_BlockZ;
- int PrevR = a_Src.front().m_Radius;
- for (int i = 0; i <= Num; ++i, ++itr)
- {
- int dx = itr->m_BlockX - PrevX;
- int dy = itr->m_BlockY - PrevY;
- int dz = itr->m_BlockZ - PrevZ;
- if (abs(dx) + abs(dz) + abs(dy) < 6)
- {
- // Too short a segment to smooth-subdivide into quarters
- PrevX = itr->m_BlockX;
- PrevY = itr->m_BlockY;
- PrevZ = itr->m_BlockZ;
- PrevR = itr->m_Radius;
- continue;
- }
- int dr = itr->m_Radius - PrevR;
- int Rad1 = std::max(PrevR + 1 * dr / 4, 1);
- int Rad2 = std::max(PrevR + 3 * dr / 4, 1);
- a_Dst.push_back(cCaveDefPoint(PrevX + 1 * dx / 4, PrevY + 1 * dy / 4, PrevZ + 1 * dz / 4, Rad1));
- a_Dst.push_back(cCaveDefPoint(PrevX + 3 * dx / 4, PrevY + 3 * dy / 4, PrevZ + 3 * dz / 4, Rad2));
- PrevX = itr->m_BlockX;
- PrevY = itr->m_BlockY;
- PrevZ = itr->m_BlockZ;
- PrevR = itr->m_Radius;
- res = true;
- }
- a_Dst.push_back(a_Src.back());
- return res && (a_Src.size() < a_Dst.size());
-}
-
-
-
-
-
-void cCaveTunnel::Smooth(void)
-{
- cCaveDefPoints Pts;
- while (true)
- {
- if (!RefineDefPoints(m_Points, Pts))
- {
- std::swap(Pts, m_Points);
- return;
- }
- if (!RefineDefPoints(Pts, m_Points))
- {
- return;
- }
- }
-}
-
-
-
-
-
-void cCaveTunnel::FinishLinear(void)
-{
- // For each segment, use Bresenham's 3D line algorithm to draw a "line" of defpoints
- cCaveDefPoints Pts;
- std::swap(Pts, m_Points);
-
- m_Points.reserve(Pts.size() * 3);
- int PrevX = Pts.front().m_BlockX;
- int PrevY = Pts.front().m_BlockY;
- int PrevZ = Pts.front().m_BlockZ;
- for (cCaveDefPoints::const_iterator itr = Pts.begin() + 1, end = Pts.end(); itr != end; ++itr)
- {
- int x1 = itr->m_BlockX;
- int y1 = itr->m_BlockY;
- int z1 = itr->m_BlockZ;
- int dx = abs(x1 - PrevX);
- int dy = abs(y1 - PrevY);
- int dz = abs(z1 - PrevZ);
- int sx = (PrevX < x1) ? 1 : -1;
- int sy = (PrevY < y1) ? 1 : -1;
- int sz = (PrevZ < z1) ? 1 : -1;
- int err = dx - dz;
- int R = itr->m_Radius;
-
- if (dx >= std::max(dy, dz)) // x dominant
- {
- int yd = dy - dx / 2;
- int zd = dz - dx / 2;
-
- while (true)
- {
- m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
-
- if (PrevX == x1)
- {
- break;
- }
-
- if (yd >= 0) // move along y
- {
- PrevY += sy;
- yd -= dx;
- }
-
- if (zd >= 0) // move along z
- {
- PrevZ += sz;
- zd -= dx;
- }
-
- // move along x
- PrevX += sx;
- yd += dy;
- zd += dz;
- }
- }
- else if (dy >= std::max(dx, dz)) // y dominant
- {
- int xd = dx - dy / 2;
- int zd = dz - dy / 2;
-
- while (true)
- {
- m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
-
- if (PrevY == y1)
- {
- break;
- }
-
- if (xd >= 0) // move along x
- {
- PrevX += sx;
- xd -= dy;
- }
-
- if (zd >= 0) // move along z
- {
- PrevZ += sz;
- zd -= dy;
- }
-
- // move along y
- PrevY += sy;
- xd += dx;
- zd += dz;
- }
- }
- else
- {
- // z dominant
- ASSERT(dz >= std::max(dx, dy));
- int xd = dx - dz / 2;
- int yd = dy - dz / 2;
-
- while (true)
- {
- m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
-
- if (PrevZ == z1)
- {
- break;
- }
-
- if (xd >= 0) // move along x
- {
- PrevX += sx;
- xd -= dz;
- }
-
- if (yd >= 0) // move along y
- {
- PrevY += sy;
- yd -= dz;
- }
-
- // move along z
- PrevZ += sz;
- xd += dx;
- yd += dy;
- }
- } // if (which dimension is dominant)
- } // for itr
-}
-
-
-
-
-
-void cCaveTunnel::CalcBoundingBox(void)
-{
- m_MinBlockX = m_MaxBlockX = m_Points.front().m_BlockX;
- m_MinBlockY = m_MaxBlockY = m_Points.front().m_BlockY;
- m_MinBlockZ = m_MaxBlockZ = m_Points.front().m_BlockZ;
- for (cCaveDefPoints::const_iterator itr = m_Points.begin() + 1, end = m_Points.end(); itr != end; ++itr)
- {
- m_MinBlockX = std::min(m_MinBlockX, itr->m_BlockX - itr->m_Radius);
- m_MaxBlockX = std::max(m_MaxBlockX, itr->m_BlockX + itr->m_Radius);
- m_MinBlockY = std::min(m_MinBlockY, itr->m_BlockY - itr->m_Radius);
- m_MaxBlockY = std::max(m_MaxBlockY, itr->m_BlockY + itr->m_Radius);
- m_MinBlockZ = std::min(m_MinBlockZ, itr->m_BlockZ - itr->m_Radius);
- m_MaxBlockZ = std::max(m_MaxBlockZ, itr->m_BlockZ + itr->m_Radius);
- } // for itr - m_Points[]
-}
-
-
-
-
-
-void cCaveTunnel::ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
-)
-{
- int BaseX = a_ChunkX * cChunkDef::Width;
- int BaseZ = a_ChunkZ * cChunkDef::Width;
- if (
- (BaseX > m_MaxBlockX) || (BaseX + cChunkDef::Width < m_MinBlockX) ||
- (BaseX > m_MaxBlockX) || (BaseX + cChunkDef::Width < m_MinBlockX)
- )
- {
- // Tunnel does not intersect the chunk at all, bail out
- return;
- }
-
- int BlockStartX = a_ChunkX * cChunkDef::Width;
- int BlockStartZ = a_ChunkZ * cChunkDef::Width;
- int BlockEndX = BlockStartX + cChunkDef::Width;
- int BlockEndZ = BlockStartZ + cChunkDef::Width;
- for (cCaveDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
- {
- if (
- (itr->m_BlockX + itr->m_Radius < BlockStartX) ||
- (itr->m_BlockX - itr->m_Radius > BlockEndX) ||
- (itr->m_BlockZ + itr->m_Radius < BlockStartZ) ||
- (itr->m_BlockZ - itr->m_Radius > BlockEndZ)
- )
- {
- // Cannot intersect, bail out early
- continue;
- }
-
- // Carve out a sphere around the xyz point, m_Radius in diameter; skip 3/7 off the top and bottom:
- int DifX = itr->m_BlockX - BlockStartX; // substitution for faster calc
- int DifY = itr->m_BlockY;
- int DifZ = itr->m_BlockZ - BlockStartZ; // substitution for faster calc
- int Bottom = std::max(itr->m_BlockY - 3 * itr->m_Radius / 7, 1);
- int Top = std::min(itr->m_BlockY + 3 * itr->m_Radius / 7, (int)(cChunkDef::Height));
- int SqRad = itr->m_Radius * itr->m_Radius;
- for (int z = 0; z < cChunkDef::Width; z++) for (int x = 0; x < cChunkDef::Width; x++)
- {
- for (int y = Bottom; y <= Top; y++)
- {
- int SqDist = (DifX - x) * (DifX - x) + (DifY - y) * (DifY - y) + (DifZ - z) * (DifZ - z);
- if (4 * SqDist <= SqRad)
- {
- switch (cChunkDef::GetBlock(a_BlockTypes, x, y, z))
- {
- // Only carve out these specific block types
- case E_BLOCK_DIRT:
- case E_BLOCK_GRASS:
- case E_BLOCK_STONE:
- case E_BLOCK_COBBLESTONE:
- case E_BLOCK_GRAVEL:
- case E_BLOCK_SAND:
- case E_BLOCK_SANDSTONE:
- case E_BLOCK_NETHERRACK:
- case E_BLOCK_COAL_ORE:
- case E_BLOCK_IRON_ORE:
- case E_BLOCK_GOLD_ORE:
- case E_BLOCK_DIAMOND_ORE:
- case E_BLOCK_REDSTONE_ORE:
- case E_BLOCK_REDSTONE_ORE_GLOWING:
- {
- cChunkDef::SetBlock(a_BlockTypes, x, y, z, E_BLOCK_AIR);
- break;
- }
- default: break;
- }
- }
- } // for y
- } // for x, z
- } // for itr - m_Points[]
-
- /*
- #ifdef _DEBUG
- // For debugging purposes, outline the shape of the cave using glowstone, *after* carving the entire cave:
- for (cCaveDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
- {
- int DifX = itr->m_BlockX - BlockStartX; // substitution for faster calc
- int DifZ = itr->m_BlockZ - BlockStartZ; // substitution for faster calc
- if (
- (DifX >= 0) && (DifX < cChunkDef::Width) &&
- (itr->m_BlockY > 0) && (itr->m_BlockY < cChunkDef::Height) &&
- (DifZ >= 0) && (DifZ < cChunkDef::Width)
- )
- {
- cChunkDef::SetBlock(a_BlockTypes, DifX, itr->m_BlockY, DifZ, E_BLOCK_GLOWSTONE);
- }
- } // for itr - m_Points[]
- #endif // _DEBUG
- //*/
-}
-
-
-
-
-
-#ifdef _DEBUG
-AString cCaveTunnel::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
-{
- AString SVG;
- SVG.reserve(m_Points.size() * 20 + 200);
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#%06x;stroke-width:1px;\"\nd=\"", a_Color);
- char Prefix = 'M'; // The first point needs "M" prefix, all the others need "L"
- for (cCaveDefPoints::const_iterator itr = m_Points.begin(); itr != m_Points.end(); ++itr)
- {
- AppendPrintf(SVG, "%c %d,%d ", Prefix, a_OffsetX + itr->m_BlockX, a_OffsetZ + itr->m_BlockZ);
- Prefix = 'L';
- }
- SVG.append("\"/>\n");
- return SVG;
-}
-#endif // _DEBUG
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenWormNestCaves::cCaveSystem:
-
-cStructGenWormNestCaves::cCaveSystem::cCaveSystem(int a_BlockX, int a_BlockZ, int a_MaxOffset, int a_Size, cNoise & a_Noise) :
- m_BlockX(a_BlockX),
- m_BlockZ(a_BlockZ),
- m_Size(a_Size)
-{
- int Num = 1 + a_Noise.IntNoise2DInt(a_BlockX, a_BlockZ) % 3;
- for (int i = 0; i < Num; i++)
- {
- int OriginX = a_BlockX + (a_Noise.IntNoise3DInt(13 * a_BlockX, 17 * a_BlockZ, 11 * i) / 19) % a_MaxOffset;
- int OriginZ = a_BlockZ + (a_Noise.IntNoise3DInt(17 * a_BlockX, 13 * a_BlockZ, 11 * i) / 23) % a_MaxOffset;
- int OriginY = 20 + (a_Noise.IntNoise3DInt(19 * a_BlockX, 13 * a_BlockZ, 11 * i) / 17) % 20;
-
- // Generate three branches from the origin point:
- // The tunnels generated depend on X, Y, Z and Branches,
- // for the same set of numbers it generates the same offsets!
- // That's why we add a +1 to X in the third line
- GenerateTunnelsFromPoint(OriginX, OriginY, OriginZ, a_Noise, 3);
- GenerateTunnelsFromPoint(OriginX, OriginY, OriginZ, a_Noise, 2);
- GenerateTunnelsFromPoint(OriginX + 1, OriginY, OriginZ, a_Noise, 3);
- }
-}
-
-
-
-
-
-cStructGenWormNestCaves::cCaveSystem::~cCaveSystem()
-{
- Clear();
-}
-
-
-
-
-
-
-void cStructGenWormNestCaves::cCaveSystem::ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
-)
-{
- for (cCaveTunnels::const_iterator itr = m_Tunnels.begin(), end = m_Tunnels.end(); itr != end; ++itr)
- {
- (*itr)->ProcessChunk(a_ChunkX, a_ChunkZ, a_BlockTypes, a_HeightMap);
- } // for itr - m_Tunnels[]
-}
-
-
-
-
-
-#ifdef _DEBUG
-AString cStructGenWormNestCaves::cCaveSystem::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
-{
- AString SVG;
- SVG.reserve(512 * 1024);
- for (cCaveTunnels::const_iterator itr = m_Tunnels.begin(), end = m_Tunnels.end(); itr != end; ++itr)
- {
- SVG.append((*itr)->ExportAsSVG(a_Color, a_OffsetX, a_OffsetZ));
- } // for itr - m_Tunnels[]
-
- // Base point highlight:
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX - 5, a_OffsetZ + m_BlockZ, a_OffsetX + m_BlockX + 5, a_OffsetZ + m_BlockZ
- );
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ - 5, a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ + 5
- );
-
- // A gray line from the base point to the first point of the ravine, for identification:
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#cfcfcf;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ,
- a_OffsetX + m_Tunnels.front()->m_Points.front().m_BlockX,
- a_OffsetZ + m_Tunnels.front()->m_Points.front().m_BlockZ
- );
-
- // Offset guides:
- if (a_OffsetX > 0)
- {
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M %d,0 L %d,1024\"/>\n",
- a_OffsetX, a_OffsetX
- );
- }
- if (a_OffsetZ > 0)
- {
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M 0,%d L 1024,%d\"/>\n",
- a_OffsetZ, a_OffsetZ
- );
- }
-
- return SVG;
-}
-#endif // _DEBUG
-
-
-
-
-
-void cStructGenWormNestCaves::cCaveSystem::Clear(void)
-{
- for (cCaveTunnels::const_iterator itr = m_Tunnels.begin(), end = m_Tunnels.end(); itr != end; ++itr)
- {
- delete *itr;
- }
- m_Tunnels.clear();
-}
-
-
-
-
-
-void cStructGenWormNestCaves::cCaveSystem::GenerateTunnelsFromPoint(
- int a_OriginX, int a_OriginY, int a_OriginZ,
- cNoise & a_Noise, int a_NumSegments
-)
-{
- int DoubleSize = m_Size * 2;
- int Radius = GetRadius(a_Noise, a_OriginX + a_OriginY, a_OriginY + a_OriginZ, a_OriginZ + a_OriginX);
- for (int i = a_NumSegments - 1; i >= 0; --i)
- {
- int EndX = a_OriginX + (((a_Noise.IntNoise3DInt(a_OriginX, a_OriginY, a_OriginZ + 11 * a_NumSegments) / 7) % DoubleSize) - m_Size) / 2;
- int EndY = a_OriginY + (((a_Noise.IntNoise3DInt(a_OriginY, 13 * a_NumSegments, a_OriginZ + a_OriginX) / 7) % DoubleSize) - m_Size) / 4;
- int EndZ = a_OriginZ + (((a_Noise.IntNoise3DInt(a_OriginZ + 17 * a_NumSegments, a_OriginX, a_OriginY) / 7) % DoubleSize) - m_Size) / 2;
- int EndR = GetRadius(a_Noise, a_OriginX + 7 * i, a_OriginY + 11 * i, a_OriginZ + a_OriginX);
- m_Tunnels.push_back(new cCaveTunnel(a_OriginX, a_OriginY, a_OriginZ, Radius, EndX, EndY, EndZ, EndR, a_Noise));
- GenerateTunnelsFromPoint(EndX, EndY, EndZ, a_Noise, i);
- a_OriginX = EndX;
- a_OriginY = EndY;
- a_OriginZ = EndZ;
- Radius = EndR;
- } // for i - a_NumSegments
-}
-
-
-
-
-
-int cStructGenWormNestCaves::cCaveSystem::GetRadius(cNoise & a_Noise, int a_OriginX, int a_OriginY, int a_OriginZ)
-{
- // Instead of a flat distribution noise function, we need to shape it, so that most caves are smallish and only a few select are large
- int rnd = a_Noise.IntNoise3DInt(a_OriginX, a_OriginY, a_OriginZ) / 11;
- /*
- // Not good enough:
- // The algorithm of choice: emulate gauss-distribution noise by adding 3 flat noises, then fold it in half using absolute value.
- // To save on processing, use one random value and extract 3 bytes to be separately added as the gaussian noise
- int sum = (rnd & 0xff) + ((rnd >> 8) & 0xff) + ((rnd >> 16) & 0xff);
- // sum is now a gaussian-distribution noise within [0 .. 767], with center at 384.
- // We want mapping 384 -> 3, 0 -> 19, 768 -> 19, so divide by 24 to get [0 .. 31] with center at 16, then use abs() to fold around the center
- int res = 3 + abs((sum / 24) - 16);
- */
-
- // Algorithm of choice: random value in the range of zero to random value - heavily towards zero
- int res = MIN_RADIUS + (rnd >> 8) % ((rnd % (MAX_RADIUS - MIN_RADIUS)) + 1);
- return res;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenWormNestCaves:
-
-cStructGenWormNestCaves::~cStructGenWormNestCaves()
-{
- ClearCache();
-}
-
-
-
-
-
-void cStructGenWormNestCaves::ClearCache(void)
-{
- for (cCaveSystems::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- } // for itr - m_Cache[]
- m_Cache.clear();
-}
-
-
-
-
-
-void cStructGenWormNestCaves::GenStructures(cChunkDesc & a_ChunkDesc)
-{
- int ChunkX = a_ChunkDesc.GetChunkX();
- int ChunkZ = a_ChunkDesc.GetChunkZ();
- cCaveSystems Caves;
- GetCavesForChunk(ChunkX, ChunkZ, Caves);
- for (cCaveSystems::const_iterator itr = Caves.begin(); itr != Caves.end(); ++itr)
- {
- (*itr)->ProcessChunk(ChunkX, ChunkZ, a_ChunkDesc.GetBlockTypes(), a_ChunkDesc.GetHeightMap());
- } // for itr - Caves[]
-}
-
-
-
-
-
-void cStructGenWormNestCaves::GetCavesForChunk(int a_ChunkX, int a_ChunkZ, cStructGenWormNestCaves::cCaveSystems & a_Caves)
-{
- int BaseX = a_ChunkX * cChunkDef::Width / m_Grid;
- int BaseZ = a_ChunkZ * cChunkDef::Width / m_Grid;
- if (BaseX < 0)
- {
- --BaseX;
- }
- if (BaseZ < 0)
- {
- --BaseZ;
- }
- BaseX -= NEIGHBORHOOD_SIZE / 2;
- BaseZ -= NEIGHBORHOOD_SIZE / 2;
-
- // Walk the cache, move each cave system that we want into a_Caves:
- int StartX = BaseX * m_Grid;
- int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_Grid;
- int StartZ = BaseZ * m_Grid;
- int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_Grid;
- for (cCaveSystems::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
- {
- if (
- ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
- ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
- )
- {
- // want
- a_Caves.push_back(*itr);
- itr = m_Cache.erase(itr);
- }
- else
- {
- // don't want
- ++itr;
- }
- } // for itr - m_Cache[]
-
- for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
- {
- int RealX = (BaseX + x) * m_Grid;
- for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
- {
- int RealZ = (BaseZ + z) * m_Grid;
- bool Found = false;
- for (cCaveSystems::const_iterator itr = a_Caves.begin(), end = a_Caves.end(); itr != end; ++itr)
- {
- if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
- {
- Found = true;
- break;
- }
- }
- if (!Found)
- {
- a_Caves.push_back(new cCaveSystem(RealX, RealZ, m_MaxOffset, m_Size, m_Noise));
- }
- }
- }
-
- // Copy a_Caves into m_Cache to the beginning:
- cCaveSystems CavesCopy(a_Caves);
- m_Cache.splice(m_Cache.begin(), CavesCopy, CavesCopy.begin(), CavesCopy.end());
-
- // Trim the cache if it's too long:
- if (m_Cache.size() > 100)
- {
- cCaveSystems::iterator itr = m_Cache.begin();
- std::advance(itr, 100);
- for (cCaveSystems::iterator end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- }
- itr = m_Cache.begin();
- std::advance(itr, 100);
- m_Cache.erase(itr, m_Cache.end());
- }
-
- /*
- // Uncomment this block for debugging the caves' shapes in 2D using an SVG export
- #ifdef _DEBUG
- AString SVG;
- SVG.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"1024\" height = \"1024\">\n");
- SVG.reserve(2 * 1024 * 1024);
- for (cCaveSystems::const_iterator itr = a_Caves.begin(), end = a_Caves.end(); itr != end; ++itr)
- {
- int Color = 0x10 * abs((*itr)->m_BlockX / m_Grid);
- Color |= 0x1000 * abs((*itr)->m_BlockZ / m_Grid);
- SVG.append((*itr)->ExportAsSVG(Color, 512, 512));
- }
- SVG.append("</svg>\n");
-
- AString fnam;
- Printf(fnam, "wnc\\%03d_%03d.svg", a_ChunkX, a_ChunkZ);
- cFile File(fnam, cFile::fmWrite);
- File.Write(SVG.c_str(), SVG.size());
- #endif // _DEBUG
- //*/
-}
-
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenMarbleCaves:
-
-static float GetMarbleNoise( float x, float y, float z, cNoise & a_Noise )
-{
- static const float PI_2 = 1.57079633f;
- float oct1 = (a_Noise.CubicNoise3D(x * 0.1f, y * 0.1f, z * 0.1f )) * 4;
-
- oct1 = oct1 * oct1 * oct1;
- if (oct1 < 0.f) oct1 = PI_2;
- if (oct1 > PI_2) oct1 = PI_2;
-
- return oct1;
-}
-
-
-
-
-
-void cStructGenMarbleCaves::GenStructures(cChunkDesc & a_ChunkDesc)
-{
- cNoise Noise(m_Seed);
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- const float zz = (float)(a_ChunkDesc.GetChunkZ() * cChunkDef::Width + z);
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- const float xx = (float)(a_ChunkDesc.GetChunkX() * cChunkDef::Width + x);
-
- int Top = a_ChunkDesc.GetHeight(x, z);
- for (int y = 1; y < Top; ++y )
- {
- if (a_ChunkDesc.GetBlockType(x, y, z) != E_BLOCK_STONE)
- {
- continue;
- }
-
- const float yy = (float)y;
- const float WaveNoise = 1;
- if (cosf(GetMarbleNoise(xx, yy * 0.5f, zz, Noise)) * fabs(cosf(yy * 0.2f + WaveNoise * 2) * 0.75f + WaveNoise) > 0.0005f)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenDualRidgeCaves:
-
-void cStructGenDualRidgeCaves::GenStructures(cChunkDesc & a_ChunkDesc)
-{
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- const float zz = (float)(a_ChunkDesc.GetChunkZ() * cChunkDef::Width + z) / 10;
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- const float xx = (float)(a_ChunkDesc.GetChunkX() * cChunkDef::Width + x) / 10;
-
- int Top = a_ChunkDesc.GetHeight(x, z);
- for (int y = 1; y <= Top; ++y)
- {
- const float yy = (float)y / 10;
- const float WaveNoise = 1;
- float n1 = m_Noise1.CubicNoise3D(xx, yy, zz);
- float n2 = m_Noise2.CubicNoise3D(xx, yy, zz);
- float n3 = m_Noise1.CubicNoise3D(xx * 4, yy * 4, zz * 4) / 4;
- float n4 = m_Noise2.CubicNoise3D(xx * 4, yy * 4, zz * 4) / 4;
- if ((abs(n1 + n3) * abs(n2 + n4)) > m_Threshold)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
+
+// Caves.cpp
+
+// Implements the various cave structure generators:
+// - cStructGenWormNestCaves
+// - cStructGenDualRidgeCaves
+// - cStructGenMarbleCaves
+// - cStructGenNetherCaves
+
+/*
+WormNestCave generator:
+Caves are generated in "nests" - groups of tunnels generated from a single point.
+For each chunk, all the nests that could intersect it are generated.
+For each nest, first the schematic structure is generated (tunnel from ... to ..., branch, tunnel2 from ... to ...)
+Then each tunnel is randomized by inserting points in between its ends.
+Finally each tunnel is smoothed and Bresenham-3D-ed so that it is a collection of spheres with their centers next to each other.
+When the tunnels are ready, they are simply carved into the chunk, one by one.
+To optimize, each tunnel keeps track of its bounding box, so that it can be skipped for chunks that don't intersect it.
+
+MarbleCaves generator:
+For each voxel a 3D noise function is evaluated, if the value crosses a boundary, the voxel is dug out, otherwise it is kept.
+Problem with this is the amount of CPU work needed for each chunk.
+Also the overall shape of the generated holes is unsatisfactory - there are whole "sheets" of holes in the ground.
+
+DualRidgeCaves generator:
+Instead of evaluating a single noise function, two different noise functions are multiplied. This produces
+regular tunnels instead of sheets. However due to the sheer amount of CPU work needed, the noise functions need to be
+reduced in complexity in order for this generator to be useful, so the caves' shapes are "bubbly" at best.
+*/
+
+#include "Globals.h"
+#include "Caves.h"
+
+
+
+
+
+/// How many nests in each direction are generated for a given chunk. Must be an even number
+#define NEIGHBORHOOD_SIZE 8
+
+
+
+
+
+const int MIN_RADIUS = 3;
+const int MAX_RADIUS = 8;
+
+
+
+
+
+struct cCaveDefPoint
+{
+ int m_BlockX;
+ int m_BlockY;
+ int m_BlockZ;
+ int m_Radius;
+
+ cCaveDefPoint(int a_BlockX, int a_BlockY, int a_BlockZ, int a_Radius) :
+ m_BlockX(a_BlockX),
+ m_BlockY(a_BlockY),
+ m_BlockZ(a_BlockZ),
+ m_Radius(a_Radius)
+ {
+ }
+} ;
+
+typedef std::vector<cCaveDefPoint> cCaveDefPoints;
+
+
+
+
+
+/// A single non-branching tunnel of a WormNestCave
+class cCaveTunnel
+{
+ // The bounding box, including the radii around defpoints:
+ int m_MinBlockX, m_MaxBlockX;
+ int m_MinBlockY, m_MaxBlockY;
+ int m_MinBlockZ, m_MaxBlockZ;
+
+ /// Generates the shaping defpoints for the ravine, based on the ravine block coords and noise
+ void Randomize(cNoise & a_Noise);
+
+ /// Refines (adds and smooths) defpoints from a_Src into a_Dst; returns false if no refinement possible (segments too short)
+ bool RefineDefPoints(const cCaveDefPoints & a_Src, cCaveDefPoints & a_Dst);
+
+ /// Does rounds of smoothing, two passes of RefineDefPoints(), as long as they return true
+ void Smooth(void);
+
+ /// Linearly interpolates the points so that the maximum distance between two neighbors is max 1 block
+ void FinishLinear(void);
+
+ /// Calculates the bounding box of the points present
+ void CalcBoundingBox(void);
+
+public:
+ cCaveDefPoints m_Points;
+
+ cCaveTunnel(
+ int a_BlockStartX, int a_BlockStartY, int a_BlockStartZ, int a_StartRadius,
+ int a_BlockEndX, int a_BlockEndY, int a_BlockEndZ, int a_EndRadius,
+ cNoise & a_Noise
+ );
+
+ /// Carves the tunnel into the chunk specified
+ void ProcessChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDef::BlockTypes & a_BlockTypes,
+ cChunkDef::HeightMap & a_HeightMap
+ );
+
+ #ifdef _DEBUG
+ AString ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const;
+ #endif // _DEBUG
+} ;
+
+typedef std::vector<cCaveTunnel *> cCaveTunnels;
+
+
+
+
+
+/// A collection of connected tunnels, possibly branching.
+class cStructGenWormNestCaves::cCaveSystem
+{
+public:
+ // The generating block position; is read directly in cStructGenWormNestCaves::GetCavesForChunk()
+ int m_BlockX;
+ int m_BlockZ;
+
+ cCaveSystem(int a_BlockX, int a_BlockZ, int a_MaxOffset, int a_Size, cNoise & a_Noise);
+ ~cCaveSystem();
+
+ /// Carves the cave system into the chunk specified
+ void ProcessChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDef::BlockTypes & a_BlockTypes,
+ cChunkDef::HeightMap & a_HeightMap
+ );
+
+ #ifdef _DEBUG
+ AString ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const;
+ #endif // _DEBUG
+
+protected:
+ int m_Size;
+ cCaveTunnels m_Tunnels;
+
+ void Clear(void);
+
+ /// Generates a_Segment successive tunnels, with possible branches. Generates the same output for the same [x, y, z, a_Segments]
+ void GenerateTunnelsFromPoint(
+ int a_OriginX, int a_OriginY, int a_OriginZ,
+ cNoise & a_Noise, int a_Segments
+ );
+
+ /// Returns a radius based on the location provided.
+ int GetRadius(cNoise & a_Noise, int a_OriginX, int a_OriginY, int a_OriginZ);
+} ;
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cCaveTunnel:
+
+cCaveTunnel::cCaveTunnel(
+ int a_BlockStartX, int a_BlockStartY, int a_BlockStartZ, int a_StartRadius,
+ int a_BlockEndX, int a_BlockEndY, int a_BlockEndZ, int a_EndRadius,
+ cNoise & a_Noise
+)
+{
+ m_Points.push_back(cCaveDefPoint(a_BlockStartX, a_BlockStartY, a_BlockStartZ, a_StartRadius));
+ m_Points.push_back(cCaveDefPoint(a_BlockEndX, a_BlockEndY, a_BlockEndZ, a_EndRadius));
+
+ if ((a_BlockStartY <= 0) && (a_BlockEndY <= 0))
+ {
+ // Don't bother detailing this cave, it's under the world anyway
+ return;
+ }
+
+ Randomize(a_Noise);
+ Smooth();
+
+ // We know that the linear finishing won't affect the bounding box, so let's calculate it now, as we have less data:
+ CalcBoundingBox();
+
+ FinishLinear();
+}
+
+
+
+
+
+void cCaveTunnel::Randomize(cNoise & a_Noise)
+{
+ // Repeat 4 times:
+ for (int i = 0; i < 4; i++)
+ {
+ // For each already present point, insert a point in between it and its predecessor, shifted randomly.
+ int PrevX = m_Points.front().m_BlockX;
+ int PrevY = m_Points.front().m_BlockY;
+ int PrevZ = m_Points.front().m_BlockZ;
+ int PrevR = m_Points.front().m_Radius;
+ cCaveDefPoints Pts;
+ Pts.reserve(m_Points.size() * 2 + 1);
+ Pts.push_back(m_Points.front());
+ for (cCaveDefPoints::const_iterator itr = m_Points.begin() + 1, end = m_Points.end(); itr != end; ++itr)
+ {
+ int Random = a_Noise.IntNoise3DInt(PrevX, PrevY, PrevZ + i) / 11;
+ int len = (PrevX - itr->m_BlockX) * (PrevX - itr->m_BlockX);
+ len += (PrevY - itr->m_BlockY) * (PrevY - itr->m_BlockY);
+ len += (PrevZ - itr->m_BlockZ) * (PrevZ - itr->m_BlockZ);
+ len = 3 * (int)sqrt((double)len) / 4;
+ int Rad = std::min(MAX_RADIUS, std::max(MIN_RADIUS, (PrevR + itr->m_Radius) / 2 + (Random % 3) - 1));
+ Random /= 4;
+ int x = (itr->m_BlockX + PrevX) / 2 + (Random % (len + 1) - len / 2);
+ Random /= 256;
+ int y = (itr->m_BlockY + PrevY) / 2 + (Random % (len / 2 + 1) - len / 4);
+ Random /= 256;
+ int z = (itr->m_BlockZ + PrevZ) / 2 + (Random % (len + 1) - len / 2);
+ Pts.push_back(cCaveDefPoint(x, y, z, Rad));
+ Pts.push_back(*itr);
+ PrevX = itr->m_BlockX;
+ PrevY = itr->m_BlockY;
+ PrevZ = itr->m_BlockZ;
+ PrevR = itr->m_Radius;
+ }
+ std::swap(Pts, m_Points);
+ }
+}
+
+
+
+
+
+bool cCaveTunnel::RefineDefPoints(const cCaveDefPoints & a_Src, cCaveDefPoints & a_Dst)
+{
+ // Smoothing: for each line segment, add points on its 1/4 lengths
+ bool res = false;
+ int Num = a_Src.size() - 2; // this many intermediary points
+ a_Dst.clear();
+ a_Dst.reserve(Num * 2 + 2);
+ cCaveDefPoints::const_iterator itr = a_Src.begin() + 1;
+ a_Dst.push_back(a_Src.front());
+ int PrevX = a_Src.front().m_BlockX;
+ int PrevY = a_Src.front().m_BlockY;
+ int PrevZ = a_Src.front().m_BlockZ;
+ int PrevR = a_Src.front().m_Radius;
+ for (int i = 0; i <= Num; ++i, ++itr)
+ {
+ int dx = itr->m_BlockX - PrevX;
+ int dy = itr->m_BlockY - PrevY;
+ int dz = itr->m_BlockZ - PrevZ;
+ if (abs(dx) + abs(dz) + abs(dy) < 6)
+ {
+ // Too short a segment to smooth-subdivide into quarters
+ PrevX = itr->m_BlockX;
+ PrevY = itr->m_BlockY;
+ PrevZ = itr->m_BlockZ;
+ PrevR = itr->m_Radius;
+ continue;
+ }
+ int dr = itr->m_Radius - PrevR;
+ int Rad1 = std::max(PrevR + 1 * dr / 4, 1);
+ int Rad2 = std::max(PrevR + 3 * dr / 4, 1);
+ a_Dst.push_back(cCaveDefPoint(PrevX + 1 * dx / 4, PrevY + 1 * dy / 4, PrevZ + 1 * dz / 4, Rad1));
+ a_Dst.push_back(cCaveDefPoint(PrevX + 3 * dx / 4, PrevY + 3 * dy / 4, PrevZ + 3 * dz / 4, Rad2));
+ PrevX = itr->m_BlockX;
+ PrevY = itr->m_BlockY;
+ PrevZ = itr->m_BlockZ;
+ PrevR = itr->m_Radius;
+ res = true;
+ }
+ a_Dst.push_back(a_Src.back());
+ return res && (a_Src.size() < a_Dst.size());
+}
+
+
+
+
+
+void cCaveTunnel::Smooth(void)
+{
+ cCaveDefPoints Pts;
+ while (true)
+ {
+ if (!RefineDefPoints(m_Points, Pts))
+ {
+ std::swap(Pts, m_Points);
+ return;
+ }
+ if (!RefineDefPoints(Pts, m_Points))
+ {
+ return;
+ }
+ }
+}
+
+
+
+
+
+void cCaveTunnel::FinishLinear(void)
+{
+ // For each segment, use Bresenham's 3D line algorithm to draw a "line" of defpoints
+ cCaveDefPoints Pts;
+ std::swap(Pts, m_Points);
+
+ m_Points.reserve(Pts.size() * 3);
+ int PrevX = Pts.front().m_BlockX;
+ int PrevY = Pts.front().m_BlockY;
+ int PrevZ = Pts.front().m_BlockZ;
+ for (cCaveDefPoints::const_iterator itr = Pts.begin() + 1, end = Pts.end(); itr != end; ++itr)
+ {
+ int x1 = itr->m_BlockX;
+ int y1 = itr->m_BlockY;
+ int z1 = itr->m_BlockZ;
+ int dx = abs(x1 - PrevX);
+ int dy = abs(y1 - PrevY);
+ int dz = abs(z1 - PrevZ);
+ int sx = (PrevX < x1) ? 1 : -1;
+ int sy = (PrevY < y1) ? 1 : -1;
+ int sz = (PrevZ < z1) ? 1 : -1;
+ int err = dx - dz;
+ int R = itr->m_Radius;
+
+ if (dx >= std::max(dy, dz)) // x dominant
+ {
+ int yd = dy - dx / 2;
+ int zd = dz - dx / 2;
+
+ while (true)
+ {
+ m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
+
+ if (PrevX == x1)
+ {
+ break;
+ }
+
+ if (yd >= 0) // move along y
+ {
+ PrevY += sy;
+ yd -= dx;
+ }
+
+ if (zd >= 0) // move along z
+ {
+ PrevZ += sz;
+ zd -= dx;
+ }
+
+ // move along x
+ PrevX += sx;
+ yd += dy;
+ zd += dz;
+ }
+ }
+ else if (dy >= std::max(dx, dz)) // y dominant
+ {
+ int xd = dx - dy / 2;
+ int zd = dz - dy / 2;
+
+ while (true)
+ {
+ m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
+
+ if (PrevY == y1)
+ {
+ break;
+ }
+
+ if (xd >= 0) // move along x
+ {
+ PrevX += sx;
+ xd -= dy;
+ }
+
+ if (zd >= 0) // move along z
+ {
+ PrevZ += sz;
+ zd -= dy;
+ }
+
+ // move along y
+ PrevY += sy;
+ xd += dx;
+ zd += dz;
+ }
+ }
+ else
+ {
+ // z dominant
+ ASSERT(dz >= std::max(dx, dy));
+ int xd = dx - dz / 2;
+ int yd = dy - dz / 2;
+
+ while (true)
+ {
+ m_Points.push_back(cCaveDefPoint(PrevX, PrevY, PrevZ, R));
+
+ if (PrevZ == z1)
+ {
+ break;
+ }
+
+ if (xd >= 0) // move along x
+ {
+ PrevX += sx;
+ xd -= dz;
+ }
+
+ if (yd >= 0) // move along y
+ {
+ PrevY += sy;
+ yd -= dz;
+ }
+
+ // move along z
+ PrevZ += sz;
+ xd += dx;
+ yd += dy;
+ }
+ } // if (which dimension is dominant)
+ } // for itr
+}
+
+
+
+
+
+void cCaveTunnel::CalcBoundingBox(void)
+{
+ m_MinBlockX = m_MaxBlockX = m_Points.front().m_BlockX;
+ m_MinBlockY = m_MaxBlockY = m_Points.front().m_BlockY;
+ m_MinBlockZ = m_MaxBlockZ = m_Points.front().m_BlockZ;
+ for (cCaveDefPoints::const_iterator itr = m_Points.begin() + 1, end = m_Points.end(); itr != end; ++itr)
+ {
+ m_MinBlockX = std::min(m_MinBlockX, itr->m_BlockX - itr->m_Radius);
+ m_MaxBlockX = std::max(m_MaxBlockX, itr->m_BlockX + itr->m_Radius);
+ m_MinBlockY = std::min(m_MinBlockY, itr->m_BlockY - itr->m_Radius);
+ m_MaxBlockY = std::max(m_MaxBlockY, itr->m_BlockY + itr->m_Radius);
+ m_MinBlockZ = std::min(m_MinBlockZ, itr->m_BlockZ - itr->m_Radius);
+ m_MaxBlockZ = std::max(m_MaxBlockZ, itr->m_BlockZ + itr->m_Radius);
+ } // for itr - m_Points[]
+}
+
+
+
+
+
+void cCaveTunnel::ProcessChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDef::BlockTypes & a_BlockTypes,
+ cChunkDef::HeightMap & a_HeightMap
+)
+{
+ int BaseX = a_ChunkX * cChunkDef::Width;
+ int BaseZ = a_ChunkZ * cChunkDef::Width;
+ if (
+ (BaseX > m_MaxBlockX) || (BaseX + cChunkDef::Width < m_MinBlockX) ||
+ (BaseX > m_MaxBlockX) || (BaseX + cChunkDef::Width < m_MinBlockX)
+ )
+ {
+ // Tunnel does not intersect the chunk at all, bail out
+ return;
+ }
+
+ int BlockStartX = a_ChunkX * cChunkDef::Width;
+ int BlockStartZ = a_ChunkZ * cChunkDef::Width;
+ int BlockEndX = BlockStartX + cChunkDef::Width;
+ int BlockEndZ = BlockStartZ + cChunkDef::Width;
+ for (cCaveDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
+ {
+ if (
+ (itr->m_BlockX + itr->m_Radius < BlockStartX) ||
+ (itr->m_BlockX - itr->m_Radius > BlockEndX) ||
+ (itr->m_BlockZ + itr->m_Radius < BlockStartZ) ||
+ (itr->m_BlockZ - itr->m_Radius > BlockEndZ)
+ )
+ {
+ // Cannot intersect, bail out early
+ continue;
+ }
+
+ // Carve out a sphere around the xyz point, m_Radius in diameter; skip 3/7 off the top and bottom:
+ int DifX = itr->m_BlockX - BlockStartX; // substitution for faster calc
+ int DifY = itr->m_BlockY;
+ int DifZ = itr->m_BlockZ - BlockStartZ; // substitution for faster calc
+ int Bottom = std::max(itr->m_BlockY - 3 * itr->m_Radius / 7, 1);
+ int Top = std::min(itr->m_BlockY + 3 * itr->m_Radius / 7, (int)(cChunkDef::Height));
+ int SqRad = itr->m_Radius * itr->m_Radius;
+ for (int z = 0; z < cChunkDef::Width; z++) for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ for (int y = Bottom; y <= Top; y++)
+ {
+ int SqDist = (DifX - x) * (DifX - x) + (DifY - y) * (DifY - y) + (DifZ - z) * (DifZ - z);
+ if (4 * SqDist <= SqRad)
+ {
+ switch (cChunkDef::GetBlock(a_BlockTypes, x, y, z))
+ {
+ // Only carve out these specific block types
+ case E_BLOCK_DIRT:
+ case E_BLOCK_GRASS:
+ case E_BLOCK_STONE:
+ case E_BLOCK_COBBLESTONE:
+ case E_BLOCK_GRAVEL:
+ case E_BLOCK_SAND:
+ case E_BLOCK_SANDSTONE:
+ case E_BLOCK_NETHERRACK:
+ case E_BLOCK_COAL_ORE:
+ case E_BLOCK_IRON_ORE:
+ case E_BLOCK_GOLD_ORE:
+ case E_BLOCK_DIAMOND_ORE:
+ case E_BLOCK_REDSTONE_ORE:
+ case E_BLOCK_REDSTONE_ORE_GLOWING:
+ {
+ cChunkDef::SetBlock(a_BlockTypes, x, y, z, E_BLOCK_AIR);
+ break;
+ }
+ default: break;
+ }
+ }
+ } // for y
+ } // for x, z
+ } // for itr - m_Points[]
+
+ /*
+ #ifdef _DEBUG
+ // For debugging purposes, outline the shape of the cave using glowstone, *after* carving the entire cave:
+ for (cCaveDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
+ {
+ int DifX = itr->m_BlockX - BlockStartX; // substitution for faster calc
+ int DifZ = itr->m_BlockZ - BlockStartZ; // substitution for faster calc
+ if (
+ (DifX >= 0) && (DifX < cChunkDef::Width) &&
+ (itr->m_BlockY > 0) && (itr->m_BlockY < cChunkDef::Height) &&
+ (DifZ >= 0) && (DifZ < cChunkDef::Width)
+ )
+ {
+ cChunkDef::SetBlock(a_BlockTypes, DifX, itr->m_BlockY, DifZ, E_BLOCK_GLOWSTONE);
+ }
+ } // for itr - m_Points[]
+ #endif // _DEBUG
+ //*/
+}
+
+
+
+
+
+#ifdef _DEBUG
+AString cCaveTunnel::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
+{
+ AString SVG;
+ SVG.reserve(m_Points.size() * 20 + 200);
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#%06x;stroke-width:1px;\"\nd=\"", a_Color);
+ char Prefix = 'M'; // The first point needs "M" prefix, all the others need "L"
+ for (cCaveDefPoints::const_iterator itr = m_Points.begin(); itr != m_Points.end(); ++itr)
+ {
+ AppendPrintf(SVG, "%c %d,%d ", Prefix, a_OffsetX + itr->m_BlockX, a_OffsetZ + itr->m_BlockZ);
+ Prefix = 'L';
+ }
+ SVG.append("\"/>\n");
+ return SVG;
+}
+#endif // _DEBUG
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenWormNestCaves::cCaveSystem:
+
+cStructGenWormNestCaves::cCaveSystem::cCaveSystem(int a_BlockX, int a_BlockZ, int a_MaxOffset, int a_Size, cNoise & a_Noise) :
+ m_BlockX(a_BlockX),
+ m_BlockZ(a_BlockZ),
+ m_Size(a_Size)
+{
+ int Num = 1 + a_Noise.IntNoise2DInt(a_BlockX, a_BlockZ) % 3;
+ for (int i = 0; i < Num; i++)
+ {
+ int OriginX = a_BlockX + (a_Noise.IntNoise3DInt(13 * a_BlockX, 17 * a_BlockZ, 11 * i) / 19) % a_MaxOffset;
+ int OriginZ = a_BlockZ + (a_Noise.IntNoise3DInt(17 * a_BlockX, 13 * a_BlockZ, 11 * i) / 23) % a_MaxOffset;
+ int OriginY = 20 + (a_Noise.IntNoise3DInt(19 * a_BlockX, 13 * a_BlockZ, 11 * i) / 17) % 20;
+
+ // Generate three branches from the origin point:
+ // The tunnels generated depend on X, Y, Z and Branches,
+ // for the same set of numbers it generates the same offsets!
+ // That's why we add a +1 to X in the third line
+ GenerateTunnelsFromPoint(OriginX, OriginY, OriginZ, a_Noise, 3);
+ GenerateTunnelsFromPoint(OriginX, OriginY, OriginZ, a_Noise, 2);
+ GenerateTunnelsFromPoint(OriginX + 1, OriginY, OriginZ, a_Noise, 3);
+ }
+}
+
+
+
+
+
+cStructGenWormNestCaves::cCaveSystem::~cCaveSystem()
+{
+ Clear();
+}
+
+
+
+
+
+
+void cStructGenWormNestCaves::cCaveSystem::ProcessChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDef::BlockTypes & a_BlockTypes,
+ cChunkDef::HeightMap & a_HeightMap
+)
+{
+ for (cCaveTunnels::const_iterator itr = m_Tunnels.begin(), end = m_Tunnels.end(); itr != end; ++itr)
+ {
+ (*itr)->ProcessChunk(a_ChunkX, a_ChunkZ, a_BlockTypes, a_HeightMap);
+ } // for itr - m_Tunnels[]
+}
+
+
+
+
+
+#ifdef _DEBUG
+AString cStructGenWormNestCaves::cCaveSystem::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
+{
+ AString SVG;
+ SVG.reserve(512 * 1024);
+ for (cCaveTunnels::const_iterator itr = m_Tunnels.begin(), end = m_Tunnels.end(); itr != end; ++itr)
+ {
+ SVG.append((*itr)->ExportAsSVG(a_Color, a_OffsetX, a_OffsetZ));
+ } // for itr - m_Tunnels[]
+
+ // Base point highlight:
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
+ a_OffsetX + m_BlockX - 5, a_OffsetZ + m_BlockZ, a_OffsetX + m_BlockX + 5, a_OffsetZ + m_BlockZ
+ );
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
+ a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ - 5, a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ + 5
+ );
+
+ // A gray line from the base point to the first point of the ravine, for identification:
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#cfcfcf;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
+ a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ,
+ a_OffsetX + m_Tunnels.front()->m_Points.front().m_BlockX,
+ a_OffsetZ + m_Tunnels.front()->m_Points.front().m_BlockZ
+ );
+
+ // Offset guides:
+ if (a_OffsetX > 0)
+ {
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M %d,0 L %d,1024\"/>\n",
+ a_OffsetX, a_OffsetX
+ );
+ }
+ if (a_OffsetZ > 0)
+ {
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M 0,%d L 1024,%d\"/>\n",
+ a_OffsetZ, a_OffsetZ
+ );
+ }
+
+ return SVG;
+}
+#endif // _DEBUG
+
+
+
+
+
+void cStructGenWormNestCaves::cCaveSystem::Clear(void)
+{
+ for (cCaveTunnels::const_iterator itr = m_Tunnels.begin(), end = m_Tunnels.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ }
+ m_Tunnels.clear();
+}
+
+
+
+
+
+void cStructGenWormNestCaves::cCaveSystem::GenerateTunnelsFromPoint(
+ int a_OriginX, int a_OriginY, int a_OriginZ,
+ cNoise & a_Noise, int a_NumSegments
+)
+{
+ int DoubleSize = m_Size * 2;
+ int Radius = GetRadius(a_Noise, a_OriginX + a_OriginY, a_OriginY + a_OriginZ, a_OriginZ + a_OriginX);
+ for (int i = a_NumSegments - 1; i >= 0; --i)
+ {
+ int EndX = a_OriginX + (((a_Noise.IntNoise3DInt(a_OriginX, a_OriginY, a_OriginZ + 11 * a_NumSegments) / 7) % DoubleSize) - m_Size) / 2;
+ int EndY = a_OriginY + (((a_Noise.IntNoise3DInt(a_OriginY, 13 * a_NumSegments, a_OriginZ + a_OriginX) / 7) % DoubleSize) - m_Size) / 4;
+ int EndZ = a_OriginZ + (((a_Noise.IntNoise3DInt(a_OriginZ + 17 * a_NumSegments, a_OriginX, a_OriginY) / 7) % DoubleSize) - m_Size) / 2;
+ int EndR = GetRadius(a_Noise, a_OriginX + 7 * i, a_OriginY + 11 * i, a_OriginZ + a_OriginX);
+ m_Tunnels.push_back(new cCaveTunnel(a_OriginX, a_OriginY, a_OriginZ, Radius, EndX, EndY, EndZ, EndR, a_Noise));
+ GenerateTunnelsFromPoint(EndX, EndY, EndZ, a_Noise, i);
+ a_OriginX = EndX;
+ a_OriginY = EndY;
+ a_OriginZ = EndZ;
+ Radius = EndR;
+ } // for i - a_NumSegments
+}
+
+
+
+
+
+int cStructGenWormNestCaves::cCaveSystem::GetRadius(cNoise & a_Noise, int a_OriginX, int a_OriginY, int a_OriginZ)
+{
+ // Instead of a flat distribution noise function, we need to shape it, so that most caves are smallish and only a few select are large
+ int rnd = a_Noise.IntNoise3DInt(a_OriginX, a_OriginY, a_OriginZ) / 11;
+ /*
+ // Not good enough:
+ // The algorithm of choice: emulate gauss-distribution noise by adding 3 flat noises, then fold it in half using absolute value.
+ // To save on processing, use one random value and extract 3 bytes to be separately added as the gaussian noise
+ int sum = (rnd & 0xff) + ((rnd >> 8) & 0xff) + ((rnd >> 16) & 0xff);
+ // sum is now a gaussian-distribution noise within [0 .. 767], with center at 384.
+ // We want mapping 384 -> 3, 0 -> 19, 768 -> 19, so divide by 24 to get [0 .. 31] with center at 16, then use abs() to fold around the center
+ int res = 3 + abs((sum / 24) - 16);
+ */
+
+ // Algorithm of choice: random value in the range of zero to random value - heavily towards zero
+ int res = MIN_RADIUS + (rnd >> 8) % ((rnd % (MAX_RADIUS - MIN_RADIUS)) + 1);
+ return res;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenWormNestCaves:
+
+cStructGenWormNestCaves::~cStructGenWormNestCaves()
+{
+ ClearCache();
+}
+
+
+
+
+
+void cStructGenWormNestCaves::ClearCache(void)
+{
+ for (cCaveSystems::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ } // for itr - m_Cache[]
+ m_Cache.clear();
+}
+
+
+
+
+
+void cStructGenWormNestCaves::GenStructures(cChunkDesc & a_ChunkDesc)
+{
+ int ChunkX = a_ChunkDesc.GetChunkX();
+ int ChunkZ = a_ChunkDesc.GetChunkZ();
+ cCaveSystems Caves;
+ GetCavesForChunk(ChunkX, ChunkZ, Caves);
+ for (cCaveSystems::const_iterator itr = Caves.begin(); itr != Caves.end(); ++itr)
+ {
+ (*itr)->ProcessChunk(ChunkX, ChunkZ, a_ChunkDesc.GetBlockTypes(), a_ChunkDesc.GetHeightMap());
+ } // for itr - Caves[]
+}
+
+
+
+
+
+void cStructGenWormNestCaves::GetCavesForChunk(int a_ChunkX, int a_ChunkZ, cStructGenWormNestCaves::cCaveSystems & a_Caves)
+{
+ int BaseX = a_ChunkX * cChunkDef::Width / m_Grid;
+ int BaseZ = a_ChunkZ * cChunkDef::Width / m_Grid;
+ if (BaseX < 0)
+ {
+ --BaseX;
+ }
+ if (BaseZ < 0)
+ {
+ --BaseZ;
+ }
+ BaseX -= NEIGHBORHOOD_SIZE / 2;
+ BaseZ -= NEIGHBORHOOD_SIZE / 2;
+
+ // Walk the cache, move each cave system that we want into a_Caves:
+ int StartX = BaseX * m_Grid;
+ int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_Grid;
+ int StartZ = BaseZ * m_Grid;
+ int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_Grid;
+ for (cCaveSystems::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
+ {
+ if (
+ ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
+ ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
+ )
+ {
+ // want
+ a_Caves.push_back(*itr);
+ itr = m_Cache.erase(itr);
+ }
+ else
+ {
+ // don't want
+ ++itr;
+ }
+ } // for itr - m_Cache[]
+
+ for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
+ {
+ int RealX = (BaseX + x) * m_Grid;
+ for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
+ {
+ int RealZ = (BaseZ + z) * m_Grid;
+ bool Found = false;
+ for (cCaveSystems::const_iterator itr = a_Caves.begin(), end = a_Caves.end(); itr != end; ++itr)
+ {
+ if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
+ {
+ Found = true;
+ break;
+ }
+ }
+ if (!Found)
+ {
+ a_Caves.push_back(new cCaveSystem(RealX, RealZ, m_MaxOffset, m_Size, m_Noise));
+ }
+ }
+ }
+
+ // Copy a_Caves into m_Cache to the beginning:
+ cCaveSystems CavesCopy(a_Caves);
+ m_Cache.splice(m_Cache.begin(), CavesCopy, CavesCopy.begin(), CavesCopy.end());
+
+ // Trim the cache if it's too long:
+ if (m_Cache.size() > 100)
+ {
+ cCaveSystems::iterator itr = m_Cache.begin();
+ std::advance(itr, 100);
+ for (cCaveSystems::iterator end = m_Cache.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ }
+ itr = m_Cache.begin();
+ std::advance(itr, 100);
+ m_Cache.erase(itr, m_Cache.end());
+ }
+
+ /*
+ // Uncomment this block for debugging the caves' shapes in 2D using an SVG export
+ #ifdef _DEBUG
+ AString SVG;
+ SVG.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"1024\" height = \"1024\">\n");
+ SVG.reserve(2 * 1024 * 1024);
+ for (cCaveSystems::const_iterator itr = a_Caves.begin(), end = a_Caves.end(); itr != end; ++itr)
+ {
+ int Color = 0x10 * abs((*itr)->m_BlockX / m_Grid);
+ Color |= 0x1000 * abs((*itr)->m_BlockZ / m_Grid);
+ SVG.append((*itr)->ExportAsSVG(Color, 512, 512));
+ }
+ SVG.append("</svg>\n");
+
+ AString fnam;
+ Printf(fnam, "wnc\\%03d_%03d.svg", a_ChunkX, a_ChunkZ);
+ cFile File(fnam, cFile::fmWrite);
+ File.Write(SVG.c_str(), SVG.size());
+ #endif // _DEBUG
+ //*/
+}
+
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenMarbleCaves:
+
+static float GetMarbleNoise( float x, float y, float z, cNoise & a_Noise )
+{
+ static const float PI_2 = 1.57079633f;
+ float oct1 = (a_Noise.CubicNoise3D(x * 0.1f, y * 0.1f, z * 0.1f )) * 4;
+
+ oct1 = oct1 * oct1 * oct1;
+ if (oct1 < 0.f) oct1 = PI_2;
+ if (oct1 > PI_2) oct1 = PI_2;
+
+ return oct1;
+}
+
+
+
+
+
+void cStructGenMarbleCaves::GenStructures(cChunkDesc & a_ChunkDesc)
+{
+ cNoise Noise(m_Seed);
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ const float zz = (float)(a_ChunkDesc.GetChunkZ() * cChunkDef::Width + z);
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ const float xx = (float)(a_ChunkDesc.GetChunkX() * cChunkDef::Width + x);
+
+ int Top = a_ChunkDesc.GetHeight(x, z);
+ for (int y = 1; y < Top; ++y )
+ {
+ if (a_ChunkDesc.GetBlockType(x, y, z) != E_BLOCK_STONE)
+ {
+ continue;
+ }
+
+ const float yy = (float)y;
+ const float WaveNoise = 1;
+ if (cosf(GetMarbleNoise(xx, yy * 0.5f, zz, Noise)) * fabs(cosf(yy * 0.2f + WaveNoise * 2) * 0.75f + WaveNoise) > 0.0005f)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenDualRidgeCaves:
+
+void cStructGenDualRidgeCaves::GenStructures(cChunkDesc & a_ChunkDesc)
+{
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ const float zz = (float)(a_ChunkDesc.GetChunkZ() * cChunkDef::Width + z) / 10;
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ const float xx = (float)(a_ChunkDesc.GetChunkX() * cChunkDef::Width + x) / 10;
+
+ int Top = a_ChunkDesc.GetHeight(x, z);
+ for (int y = 1; y <= Top; ++y)
+ {
+ const float yy = (float)y / 10;
+ const float WaveNoise = 1;
+ float n1 = m_Noise1.CubicNoise3D(xx, yy, zz);
+ float n2 = m_Noise2.CubicNoise3D(xx, yy, zz);
+ float n3 = m_Noise1.CubicNoise3D(xx * 4, yy * 4, zz * 4) / 4;
+ float n4 = m_Noise2.CubicNoise3D(xx * 4, yy * 4, zz * 4) / 4;
+ if ((abs(n1 + n3) * abs(n2 + n4)) > m_Threshold)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
diff --git a/source/Generating/Caves.h b/source/Generating/Caves.h
index bb69550a8..70cf6fe8c 100644
--- a/source/Generating/Caves.h
+++ b/source/Generating/Caves.h
@@ -1,102 +1,102 @@
-
-// Caves.h
-
-// Interfaces to the various cave structure generators:
-// - cStructGenWormNestCaves
-// - cStructGenMarbleCaves
-// - cStructGenNetherCaves
-
-
-
-
-
-#pragma once
-
-#include "ComposableGenerator.h"
-#include "../Noise.h"
-
-
-
-
-
-class cStructGenMarbleCaves :
- public cStructureGen
-{
-public:
- cStructGenMarbleCaves(int a_Seed) : m_Seed(a_Seed) {}
-
-protected:
-
- int m_Seed;
-
- // cStructureGen override:
- virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
-
-class cStructGenDualRidgeCaves :
- public cStructureGen
-{
-public:
- cStructGenDualRidgeCaves(int a_Seed, float a_Threshold) :
- m_Noise1(a_Seed),
- m_Noise2(2 * a_Seed + 19999),
- m_Seed(a_Seed),
- m_Threshold(a_Threshold)
- {
- }
-
-protected:
- cNoise m_Noise1;
- cNoise m_Noise2;
- int m_Seed;
- float m_Threshold;
-
- // cStructureGen override:
- virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
-
-class cStructGenWormNestCaves :
- public cStructureGen
-{
-public:
- cStructGenWormNestCaves(int a_Seed, int a_Size = 64, int a_Grid = 96, int a_MaxOffset = 128) :
- m_Noise(a_Seed),
- m_Size(a_Size),
- m_Grid(a_Grid),
- m_MaxOffset(a_MaxOffset)
- {
- }
-
- ~cStructGenWormNestCaves();
-
-protected:
- class cCaveSystem; // fwd: Caves.cpp
- typedef std::list<cCaveSystem *> cCaveSystems;
-
- cNoise m_Noise;
- int m_Size; // relative size of the cave systems' caves. Average number of blocks of each initial tunnel
- int m_MaxOffset; // maximum offset of the cave nest origin from the grid cell the nest belongs to
- int m_Grid; // average spacing of the nests
- cCaveSystems m_Cache;
-
- /// Clears everything from the cache
- void ClearCache(void);
-
- /// Returns all caves that *may* intersect the given chunk. All the caves are valid until the next call to this function.
- void GetCavesForChunk(int a_ChunkX, int a_ChunkZ, cCaveSystems & a_Caves);
-
- // cStructGen override:
- virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
+
+// Caves.h
+
+// Interfaces to the various cave structure generators:
+// - cStructGenWormNestCaves
+// - cStructGenMarbleCaves
+// - cStructGenNetherCaves
+
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "../Noise.h"
+
+
+
+
+
+class cStructGenMarbleCaves :
+ public cStructureGen
+{
+public:
+ cStructGenMarbleCaves(int a_Seed) : m_Seed(a_Seed) {}
+
+protected:
+
+ int m_Seed;
+
+ // cStructureGen override:
+ virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cStructGenDualRidgeCaves :
+ public cStructureGen
+{
+public:
+ cStructGenDualRidgeCaves(int a_Seed, float a_Threshold) :
+ m_Noise1(a_Seed),
+ m_Noise2(2 * a_Seed + 19999),
+ m_Seed(a_Seed),
+ m_Threshold(a_Threshold)
+ {
+ }
+
+protected:
+ cNoise m_Noise1;
+ cNoise m_Noise2;
+ int m_Seed;
+ float m_Threshold;
+
+ // cStructureGen override:
+ virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cStructGenWormNestCaves :
+ public cStructureGen
+{
+public:
+ cStructGenWormNestCaves(int a_Seed, int a_Size = 64, int a_Grid = 96, int a_MaxOffset = 128) :
+ m_Noise(a_Seed),
+ m_Size(a_Size),
+ m_Grid(a_Grid),
+ m_MaxOffset(a_MaxOffset)
+ {
+ }
+
+ ~cStructGenWormNestCaves();
+
+protected:
+ class cCaveSystem; // fwd: Caves.cpp
+ typedef std::list<cCaveSystem *> cCaveSystems;
+
+ cNoise m_Noise;
+ int m_Size; // relative size of the cave systems' caves. Average number of blocks of each initial tunnel
+ int m_MaxOffset; // maximum offset of the cave nest origin from the grid cell the nest belongs to
+ int m_Grid; // average spacing of the nests
+ cCaveSystems m_Cache;
+
+ /// Clears everything from the cache
+ void ClearCache(void);
+
+ /// Returns all caves that *may* intersect the given chunk. All the caves are valid until the next call to this function.
+ void GetCavesForChunk(int a_ChunkX, int a_ChunkZ, cCaveSystems & a_Caves);
+
+ // cStructGen override:
+ virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
diff --git a/source/Generating/ChunkDesc.cpp b/source/Generating/ChunkDesc.cpp
index 5c59055f7..dc6c74a3c 100644
--- a/source/Generating/ChunkDesc.cpp
+++ b/source/Generating/ChunkDesc.cpp
@@ -1,578 +1,578 @@
-
-// ChunkDesc.cpp
-
-// Implements the cChunkDesc class representing the chunk description used while generating a chunk. This class is also exported to Lua for HOOK_CHUNK_GENERATING.
-
-#include "Globals.h"
-#include "ChunkDesc.h"
-#include "../BlockArea.h"
-#include "../Cuboid.h"
-#include "../Noise.h"
-
-
-
-
-
-cChunkDesc::cChunkDesc(int a_ChunkX, int a_ChunkZ) :
- m_ChunkX(a_ChunkX),
- m_ChunkZ(a_ChunkZ),
- m_bUseDefaultBiomes(true),
- m_bUseDefaultHeight(true),
- m_bUseDefaultComposition(true),
- m_bUseDefaultStructures(true),
- m_bUseDefaultFinish(true)
-{
- m_BlockArea.Create(cChunkDef::Width, cChunkDef::Height, cChunkDef::Width);
- /*
- memset(m_BlockTypes, 0, sizeof(cChunkDef::BlockTypes));
- memset(m_BlockMeta, 0, sizeof(cChunkDef::BlockNibbles));
- */
- memset(m_BiomeMap, 0, sizeof(cChunkDef::BiomeMap));
- memset(m_HeightMap, 0, sizeof(cChunkDef::HeightMap));
-}
-
-
-
-
-
-cChunkDesc::~cChunkDesc()
-{
- // Nothing needed yet
-}
-
-
-
-
-
-void cChunkDesc::SetChunkCoords(int a_ChunkX, int a_ChunkZ)
-{
- m_ChunkX = a_ChunkX;
- m_ChunkZ = a_ChunkZ;
-}
-
-
-
-
-
-void cChunkDesc::FillBlocks(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
-{
- m_BlockArea.Fill(cBlockArea::baTypes | cBlockArea::baMetas, a_BlockType, a_BlockMeta);
-}
-
-
-
-
-
-void cChunkDesc::SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
-{
- m_BlockArea.SetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
-}
-
-
-
-
-
-void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta)
-{
- m_BlockArea.GetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
-}
-
-
-
-
-
-void cChunkDesc::SetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
-{
- cChunkDef::SetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ, a_BlockType);
-}
-
-
-
-
-
-BLOCKTYPE cChunkDesc::GetBlockType(int a_RelX, int a_RelY, int a_RelZ)
-{
- return cChunkDef::GetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ);
-}
-
-
-
-
-
-NIBBLETYPE cChunkDesc::GetBlockMeta(int a_RelX, int a_RelY, int a_RelZ)
-{
- return m_BlockArea.GetRelBlockMeta(a_RelX, a_RelY, a_RelZ);
-}
-
-
-
-
-
-void cChunkDesc::SetBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
-{
- m_BlockArea.SetRelBlockMeta(a_RelX, a_RelY, a_RelZ, a_BlockMeta);
-}
-
-
-
-
-
-void cChunkDesc::SetBiome(int a_RelX, int a_RelZ, int a_BiomeID)
-{
- cChunkDef::SetBiome(m_BiomeMap, a_RelX, a_RelZ, (EMCSBiome)a_BiomeID);
-}
-
-
-
-
-EMCSBiome cChunkDesc::GetBiome(int a_RelX, int a_RelZ)
-{
- return cChunkDef::GetBiome(m_BiomeMap, a_RelX, a_RelZ);
-}
-
-
-
-
-
-void cChunkDesc::SetHeight(int a_RelX, int a_RelZ, int a_Height)
-{
- cChunkDef::SetHeight(m_HeightMap, a_RelX, a_RelZ, a_Height);
-}
-
-
-
-
-
-int cChunkDesc::GetHeight(int a_RelX, int a_RelZ)
-{
- return cChunkDef::GetHeight(m_HeightMap, a_RelX, a_RelZ);
-}
-
-
-
-
-
-void cChunkDesc::SetUseDefaultBiomes(bool a_bUseDefaultBiomes)
-{
- m_bUseDefaultBiomes = a_bUseDefaultBiomes;
-}
-
-
-
-
-
-bool cChunkDesc::IsUsingDefaultBiomes(void) const
-{
- return m_bUseDefaultBiomes;
-}
-
-
-
-
-
-void cChunkDesc::SetUseDefaultHeight(bool a_bUseDefaultHeight)
-{
- m_bUseDefaultHeight = a_bUseDefaultHeight;
-}
-
-
-
-
-
-bool cChunkDesc::IsUsingDefaultHeight(void) const
-{
- return m_bUseDefaultHeight;
-}
-
-
-
-
-
-void cChunkDesc::SetUseDefaultComposition(bool a_bUseDefaultComposition)
-{
- m_bUseDefaultComposition = a_bUseDefaultComposition;
-}
-
-
-
-
-
-bool cChunkDesc::IsUsingDefaultComposition(void) const
-{
- return m_bUseDefaultComposition;
-}
-
-
-
-
-
-void cChunkDesc::SetUseDefaultStructures(bool a_bUseDefaultStructures)
-{
- m_bUseDefaultStructures = a_bUseDefaultStructures;
-}
-
-
-
-
-
-bool cChunkDesc::IsUsingDefaultStructures(void) const
-{
- return m_bUseDefaultStructures;
-}
-
-
-
-
-
-void cChunkDesc::SetUseDefaultFinish(bool a_bUseDefaultFinish)
-{
- m_bUseDefaultFinish = a_bUseDefaultFinish;
-}
-
-
-
-
-
-bool cChunkDesc::IsUsingDefaultFinish(void) const
-{
- return m_bUseDefaultFinish;
-}
-
-
-
-
-void cChunkDesc::WriteBlockArea(const cBlockArea & a_BlockArea, int a_RelX, int a_RelY, int a_RelZ, cBlockArea::eMergeStrategy a_MergeStrategy)
-{
- m_BlockArea.Merge(a_BlockArea, a_RelX, a_RelY, a_RelZ, a_MergeStrategy);
-}
-
-
-
-
-
-void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX, int a_MinRelY, int a_MaxRelY, int a_MinRelZ, int a_MaxRelZ)
-{
- // Normalize the coords:
- if (a_MinRelX > a_MaxRelX)
- {
- std::swap(a_MinRelX, a_MaxRelX);
- }
- if (a_MinRelY > a_MaxRelY)
- {
- std::swap(a_MinRelY, a_MaxRelY);
- }
- if (a_MinRelZ > a_MaxRelZ)
- {
- std::swap(a_MinRelZ, a_MaxRelZ);
- }
-
- // Include the Max coords:
- a_MaxRelX += 1;
- a_MaxRelY += 1;
- a_MaxRelZ += 1;
-
- // Check coords validity:
- if (a_MinRelX < 0)
- {
- LOGWARNING("%s: MinRelX less than zero, adjusting to zero", __FUNCTION__);
- a_MinRelX = 0;
- }
- else if (a_MinRelX >= cChunkDef::Width)
- {
- LOGWARNING("%s: MinRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
- a_MinRelX = cChunkDef::Width - 1;
- }
- if (a_MaxRelX < 0)
- {
- LOGWARNING("%s: MaxRelX less than zero, adjusting to zero", __FUNCTION__);
- a_MaxRelX = 0;
- }
- else if (a_MinRelX >= cChunkDef::Width)
- {
- LOGWARNING("%s: MaxRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
- a_MaxRelX = cChunkDef::Width - 1;
- }
-
- if (a_MinRelY < 0)
- {
- LOGWARNING("%s: MinRelY less than zero, adjusting to zero", __FUNCTION__);
- a_MinRelY = 0;
- }
- else if (a_MinRelY >= cChunkDef::Height)
- {
- LOGWARNING("%s: MinRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
- a_MinRelY = cChunkDef::Height - 1;
- }
- if (a_MaxRelY < 0)
- {
- LOGWARNING("%s: MaxRelY less than zero, adjusting to zero", __FUNCTION__);
- a_MaxRelY = 0;
- }
- else if (a_MinRelY >= cChunkDef::Height)
- {
- LOGWARNING("%s: MaxRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
- a_MaxRelY = cChunkDef::Height - 1;
- }
-
- if (a_MinRelZ < 0)
- {
- LOGWARNING("%s: MinRelZ less than zero, adjusting to zero", __FUNCTION__);
- a_MinRelZ = 0;
- }
- else if (a_MinRelZ >= cChunkDef::Width)
- {
- LOGWARNING("%s: MinRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
- a_MinRelZ = cChunkDef::Width - 1;
- }
- if (a_MaxRelZ < 0)
- {
- LOGWARNING("%s: MaxRelZ less than zero, adjusting to zero", __FUNCTION__);
- a_MaxRelZ = 0;
- }
- else if (a_MinRelZ >= cChunkDef::Width)
- {
- LOGWARNING("%s: MaxRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
- a_MaxRelZ = cChunkDef::Width - 1;
- }
-
- // Prepare the block area:
- int SizeX = a_MaxRelX - a_MinRelX;
- int SizeY = a_MaxRelY - a_MinRelY;
- int SizeZ = a_MaxRelZ - a_MinRelZ;
- a_Dest.Clear();
- a_Dest.m_OriginX = m_ChunkX * cChunkDef::Width + a_MinRelX;
- a_Dest.m_OriginY = a_MinRelY;
- a_Dest.m_OriginZ = m_ChunkZ * cChunkDef::Width + a_MinRelZ;
- a_Dest.SetSize(SizeX, SizeY, SizeZ, cBlockArea::baTypes | cBlockArea::baMetas);
-
- for (int y = 0; y < SizeY; y++)
- {
- int CDY = a_MinRelY + y;
- for (int z = 0; z < SizeZ; z++)
- {
- int CDZ = a_MinRelZ + z;
- for (int x = 0; x < SizeX; x++)
- {
- int CDX = a_MinRelX + x;
- BLOCKTYPE BlockType;
- NIBBLETYPE BlockMeta;
- GetBlockTypeMeta(CDX, CDY, CDZ, BlockType, BlockMeta);
- a_Dest.SetRelBlockTypeMeta(x, y, z, BlockType, BlockMeta);
- } // for x
- } // for z
- } // for y
-}
-
-
-
-
-
-HEIGHTTYPE cChunkDesc::GetMaxHeight(void) const
-{
- HEIGHTTYPE MaxHeight = m_HeightMap[0];
- for (int i = 1; i < ARRAYCOUNT(m_HeightMap); i++)
- {
- if (m_HeightMap[i] > MaxHeight)
- {
- MaxHeight = m_HeightMap[i];
- }
- }
- return MaxHeight;
-}
-
-
-
-
-
-void cChunkDesc::FillRelCuboid(
- int a_MinX, int a_MaxX,
- int a_MinY, int a_MaxY,
- int a_MinZ, int a_MaxZ,
- BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta
-)
-{
- int MinX = std::max(a_MinX, 0);
- int MinY = std::max(a_MinY, 0);
- int MinZ = std::max(a_MinZ, 0);
- int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
- int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
- int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
-
- for (int y = MinY; y <= MaxY; y++)
- {
- for (int z = MinZ; z <= MaxZ; z++)
- {
- for (int x = MinX; x <= MaxX; x++)
- {
- SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
- }
- } // for z
- } // for y
-}
-
-
-
-
-
-void cChunkDesc::ReplaceRelCuboid(
- int a_MinX, int a_MaxX,
- int a_MinY, int a_MaxY,
- int a_MinZ, int a_MaxZ,
- BLOCKTYPE a_SrcType, NIBBLETYPE a_SrcMeta,
- BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
-)
-{
- int MinX = std::max(a_MinX, 0);
- int MinY = std::max(a_MinY, 0);
- int MinZ = std::max(a_MinZ, 0);
- int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
- int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
- int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
-
- for (int y = MinY; y <= MaxY; y++)
- {
- for (int z = MinZ; z <= MaxZ; z++)
- {
- for (int x = MinX; x <= MaxX; x++)
- {
- BLOCKTYPE BlockType;
- NIBBLETYPE BlockMeta;
- GetBlockTypeMeta(x, y, z, BlockType, BlockMeta);
- if ((BlockType == a_SrcType) && (BlockMeta == a_SrcMeta))
- {
- SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
- }
- }
- } // for z
- } // for y
-}
-
-
-
-
-
-void cChunkDesc::FloorRelCuboid(
- int a_MinX, int a_MaxX,
- int a_MinY, int a_MaxY,
- int a_MinZ, int a_MaxZ,
- BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
-)
-{
- int MinX = std::max(a_MinX, 0);
- int MinY = std::max(a_MinY, 0);
- int MinZ = std::max(a_MinZ, 0);
- int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
- int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
- int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
-
- for (int y = MinY; y <= MaxY; y++)
- {
- for (int z = MinZ; z <= MaxZ; z++)
- {
- for (int x = MinX; x <= MaxX; x++)
- {
- switch (GetBlockType(x, y, z))
- {
- case E_BLOCK_AIR:
- case E_BLOCK_WATER:
- case E_BLOCK_STATIONARY_WATER:
- {
- SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
- break;
- }
- } // switch (GetBlockType)
- } // for x
- } // for z
- } // for y
-}
-
-
-
-
-
-void cChunkDesc::RandomFillRelCuboid(
- int a_MinX, int a_MaxX,
- int a_MinY, int a_MaxY,
- int a_MinZ, int a_MaxZ,
- BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
- int a_RandomSeed, int a_ChanceOutOf10k
-)
-{
- cNoise Noise(a_RandomSeed);
- int MinX = std::max(a_MinX, 0);
- int MinY = std::max(a_MinY, 0);
- int MinZ = std::max(a_MinZ, 0);
- int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
- int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
- int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
-
- for (int y = MinY; y <= MaxY; y++)
- {
- for (int z = MinZ; z <= MaxZ; z++)
- {
- for (int x = MinX; x <= MaxX; x++)
- {
- int rnd = (Noise.IntNoise3DInt(x, y, z) / 7) % 10000;
- if (rnd <= a_ChanceOutOf10k)
- {
- SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
- }
- }
- } // for z
- } // for y
-}
-
-
-
-
-
-void cChunkDesc::AddBlockEntity(cBlockEntity * a_BlockEntity)
-{
- m_BlockEntities.push_back(a_BlockEntity);
-}
-
-
-
-
-
-void cChunkDesc::CompressBlockMetas(cChunkDef::BlockNibbles & a_DestMetas)
-{
- const NIBBLETYPE * AreaMetas = m_BlockArea.GetBlockMetas();
- for (int i = 0; i < ARRAYCOUNT(a_DestMetas); i++)
- {
- a_DestMetas[i] = AreaMetas[2 * i] | (AreaMetas[2 * i + 1] << 4);
- }
-}
-
-
-
-
-
-#ifdef _DEBUG
-
-void cChunkDesc::VerifyHeightmap(void)
-{
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int y = cChunkDef::Height - 1; y > 0; y--)
- {
- BLOCKTYPE BlockType = GetBlockType(x, y, z);
- if (BlockType != E_BLOCK_AIR)
- {
- int Height = GetHeight(x, z);
- ASSERT(Height == y);
- break;
- }
- } // for y
- } // for z
- } // for x
-}
-
-#endif // _DEBUG
-
-
-
-
-
+
+// ChunkDesc.cpp
+
+// Implements the cChunkDesc class representing the chunk description used while generating a chunk. This class is also exported to Lua for HOOK_CHUNK_GENERATING.
+
+#include "Globals.h"
+#include "ChunkDesc.h"
+#include "../BlockArea.h"
+#include "../Cuboid.h"
+#include "../Noise.h"
+
+
+
+
+
+cChunkDesc::cChunkDesc(int a_ChunkX, int a_ChunkZ) :
+ m_ChunkX(a_ChunkX),
+ m_ChunkZ(a_ChunkZ),
+ m_bUseDefaultBiomes(true),
+ m_bUseDefaultHeight(true),
+ m_bUseDefaultComposition(true),
+ m_bUseDefaultStructures(true),
+ m_bUseDefaultFinish(true)
+{
+ m_BlockArea.Create(cChunkDef::Width, cChunkDef::Height, cChunkDef::Width);
+ /*
+ memset(m_BlockTypes, 0, sizeof(cChunkDef::BlockTypes));
+ memset(m_BlockMeta, 0, sizeof(cChunkDef::BlockNibbles));
+ */
+ memset(m_BiomeMap, 0, sizeof(cChunkDef::BiomeMap));
+ memset(m_HeightMap, 0, sizeof(cChunkDef::HeightMap));
+}
+
+
+
+
+
+cChunkDesc::~cChunkDesc()
+{
+ // Nothing needed yet
+}
+
+
+
+
+
+void cChunkDesc::SetChunkCoords(int a_ChunkX, int a_ChunkZ)
+{
+ m_ChunkX = a_ChunkX;
+ m_ChunkZ = a_ChunkZ;
+}
+
+
+
+
+
+void cChunkDesc::FillBlocks(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+ m_BlockArea.Fill(cBlockArea::baTypes | cBlockArea::baMetas, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+ m_BlockArea.SetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta)
+{
+ m_BlockArea.GetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::SetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
+{
+ cChunkDef::SetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ, a_BlockType);
+}
+
+
+
+
+
+BLOCKTYPE cChunkDesc::GetBlockType(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return cChunkDef::GetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+NIBBLETYPE cChunkDesc::GetBlockMeta(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return m_BlockArea.GetRelBlockMeta(a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+void cChunkDesc::SetBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
+{
+ m_BlockArea.SetRelBlockMeta(a_RelX, a_RelY, a_RelZ, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::SetBiome(int a_RelX, int a_RelZ, int a_BiomeID)
+{
+ cChunkDef::SetBiome(m_BiomeMap, a_RelX, a_RelZ, (EMCSBiome)a_BiomeID);
+}
+
+
+
+
+EMCSBiome cChunkDesc::GetBiome(int a_RelX, int a_RelZ)
+{
+ return cChunkDef::GetBiome(m_BiomeMap, a_RelX, a_RelZ);
+}
+
+
+
+
+
+void cChunkDesc::SetHeight(int a_RelX, int a_RelZ, int a_Height)
+{
+ cChunkDef::SetHeight(m_HeightMap, a_RelX, a_RelZ, a_Height);
+}
+
+
+
+
+
+int cChunkDesc::GetHeight(int a_RelX, int a_RelZ)
+{
+ return cChunkDef::GetHeight(m_HeightMap, a_RelX, a_RelZ);
+}
+
+
+
+
+
+void cChunkDesc::SetUseDefaultBiomes(bool a_bUseDefaultBiomes)
+{
+ m_bUseDefaultBiomes = a_bUseDefaultBiomes;
+}
+
+
+
+
+
+bool cChunkDesc::IsUsingDefaultBiomes(void) const
+{
+ return m_bUseDefaultBiomes;
+}
+
+
+
+
+
+void cChunkDesc::SetUseDefaultHeight(bool a_bUseDefaultHeight)
+{
+ m_bUseDefaultHeight = a_bUseDefaultHeight;
+}
+
+
+
+
+
+bool cChunkDesc::IsUsingDefaultHeight(void) const
+{
+ return m_bUseDefaultHeight;
+}
+
+
+
+
+
+void cChunkDesc::SetUseDefaultComposition(bool a_bUseDefaultComposition)
+{
+ m_bUseDefaultComposition = a_bUseDefaultComposition;
+}
+
+
+
+
+
+bool cChunkDesc::IsUsingDefaultComposition(void) const
+{
+ return m_bUseDefaultComposition;
+}
+
+
+
+
+
+void cChunkDesc::SetUseDefaultStructures(bool a_bUseDefaultStructures)
+{
+ m_bUseDefaultStructures = a_bUseDefaultStructures;
+}
+
+
+
+
+
+bool cChunkDesc::IsUsingDefaultStructures(void) const
+{
+ return m_bUseDefaultStructures;
+}
+
+
+
+
+
+void cChunkDesc::SetUseDefaultFinish(bool a_bUseDefaultFinish)
+{
+ m_bUseDefaultFinish = a_bUseDefaultFinish;
+}
+
+
+
+
+
+bool cChunkDesc::IsUsingDefaultFinish(void) const
+{
+ return m_bUseDefaultFinish;
+}
+
+
+
+
+void cChunkDesc::WriteBlockArea(const cBlockArea & a_BlockArea, int a_RelX, int a_RelY, int a_RelZ, cBlockArea::eMergeStrategy a_MergeStrategy)
+{
+ m_BlockArea.Merge(a_BlockArea, a_RelX, a_RelY, a_RelZ, a_MergeStrategy);
+}
+
+
+
+
+
+void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX, int a_MinRelY, int a_MaxRelY, int a_MinRelZ, int a_MaxRelZ)
+{
+ // Normalize the coords:
+ if (a_MinRelX > a_MaxRelX)
+ {
+ std::swap(a_MinRelX, a_MaxRelX);
+ }
+ if (a_MinRelY > a_MaxRelY)
+ {
+ std::swap(a_MinRelY, a_MaxRelY);
+ }
+ if (a_MinRelZ > a_MaxRelZ)
+ {
+ std::swap(a_MinRelZ, a_MaxRelZ);
+ }
+
+ // Include the Max coords:
+ a_MaxRelX += 1;
+ a_MaxRelY += 1;
+ a_MaxRelZ += 1;
+
+ // Check coords validity:
+ if (a_MinRelX < 0)
+ {
+ LOGWARNING("%s: MinRelX less than zero, adjusting to zero", __FUNCTION__);
+ a_MinRelX = 0;
+ }
+ else if (a_MinRelX >= cChunkDef::Width)
+ {
+ LOGWARNING("%s: MinRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
+ a_MinRelX = cChunkDef::Width - 1;
+ }
+ if (a_MaxRelX < 0)
+ {
+ LOGWARNING("%s: MaxRelX less than zero, adjusting to zero", __FUNCTION__);
+ a_MaxRelX = 0;
+ }
+ else if (a_MinRelX >= cChunkDef::Width)
+ {
+ LOGWARNING("%s: MaxRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
+ a_MaxRelX = cChunkDef::Width - 1;
+ }
+
+ if (a_MinRelY < 0)
+ {
+ LOGWARNING("%s: MinRelY less than zero, adjusting to zero", __FUNCTION__);
+ a_MinRelY = 0;
+ }
+ else if (a_MinRelY >= cChunkDef::Height)
+ {
+ LOGWARNING("%s: MinRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
+ a_MinRelY = cChunkDef::Height - 1;
+ }
+ if (a_MaxRelY < 0)
+ {
+ LOGWARNING("%s: MaxRelY less than zero, adjusting to zero", __FUNCTION__);
+ a_MaxRelY = 0;
+ }
+ else if (a_MinRelY >= cChunkDef::Height)
+ {
+ LOGWARNING("%s: MaxRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
+ a_MaxRelY = cChunkDef::Height - 1;
+ }
+
+ if (a_MinRelZ < 0)
+ {
+ LOGWARNING("%s: MinRelZ less than zero, adjusting to zero", __FUNCTION__);
+ a_MinRelZ = 0;
+ }
+ else if (a_MinRelZ >= cChunkDef::Width)
+ {
+ LOGWARNING("%s: MinRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
+ a_MinRelZ = cChunkDef::Width - 1;
+ }
+ if (a_MaxRelZ < 0)
+ {
+ LOGWARNING("%s: MaxRelZ less than zero, adjusting to zero", __FUNCTION__);
+ a_MaxRelZ = 0;
+ }
+ else if (a_MinRelZ >= cChunkDef::Width)
+ {
+ LOGWARNING("%s: MaxRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
+ a_MaxRelZ = cChunkDef::Width - 1;
+ }
+
+ // Prepare the block area:
+ int SizeX = a_MaxRelX - a_MinRelX;
+ int SizeY = a_MaxRelY - a_MinRelY;
+ int SizeZ = a_MaxRelZ - a_MinRelZ;
+ a_Dest.Clear();
+ a_Dest.m_OriginX = m_ChunkX * cChunkDef::Width + a_MinRelX;
+ a_Dest.m_OriginY = a_MinRelY;
+ a_Dest.m_OriginZ = m_ChunkZ * cChunkDef::Width + a_MinRelZ;
+ a_Dest.SetSize(SizeX, SizeY, SizeZ, cBlockArea::baTypes | cBlockArea::baMetas);
+
+ for (int y = 0; y < SizeY; y++)
+ {
+ int CDY = a_MinRelY + y;
+ for (int z = 0; z < SizeZ; z++)
+ {
+ int CDZ = a_MinRelZ + z;
+ for (int x = 0; x < SizeX; x++)
+ {
+ int CDX = a_MinRelX + x;
+ BLOCKTYPE BlockType;
+ NIBBLETYPE BlockMeta;
+ GetBlockTypeMeta(CDX, CDY, CDZ, BlockType, BlockMeta);
+ a_Dest.SetRelBlockTypeMeta(x, y, z, BlockType, BlockMeta);
+ } // for x
+ } // for z
+ } // for y
+}
+
+
+
+
+
+HEIGHTTYPE cChunkDesc::GetMaxHeight(void) const
+{
+ HEIGHTTYPE MaxHeight = m_HeightMap[0];
+ for (int i = 1; i < ARRAYCOUNT(m_HeightMap); i++)
+ {
+ if (m_HeightMap[i] > MaxHeight)
+ {
+ MaxHeight = m_HeightMap[i];
+ }
+ }
+ return MaxHeight;
+}
+
+
+
+
+
+void cChunkDesc::FillRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta
+)
+{
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
+ }
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::ReplaceRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_SrcType, NIBBLETYPE a_SrcMeta,
+ BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
+)
+{
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ BLOCKTYPE BlockType;
+ NIBBLETYPE BlockMeta;
+ GetBlockTypeMeta(x, y, z, BlockType, BlockMeta);
+ if ((BlockType == a_SrcType) && (BlockMeta == a_SrcMeta))
+ {
+ SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
+ }
+ }
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::FloorRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
+)
+{
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ switch (GetBlockType(x, y, z))
+ {
+ case E_BLOCK_AIR:
+ case E_BLOCK_WATER:
+ case E_BLOCK_STATIONARY_WATER:
+ {
+ SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
+ break;
+ }
+ } // switch (GetBlockType)
+ } // for x
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::RandomFillRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
+ int a_RandomSeed, int a_ChanceOutOf10k
+)
+{
+ cNoise Noise(a_RandomSeed);
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ int rnd = (Noise.IntNoise3DInt(x, y, z) / 7) % 10000;
+ if (rnd <= a_ChanceOutOf10k)
+ {
+ SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
+ }
+ }
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::AddBlockEntity(cBlockEntity * a_BlockEntity)
+{
+ m_BlockEntities.push_back(a_BlockEntity);
+}
+
+
+
+
+
+void cChunkDesc::CompressBlockMetas(cChunkDef::BlockNibbles & a_DestMetas)
+{
+ const NIBBLETYPE * AreaMetas = m_BlockArea.GetBlockMetas();
+ for (int i = 0; i < ARRAYCOUNT(a_DestMetas); i++)
+ {
+ a_DestMetas[i] = AreaMetas[2 * i] | (AreaMetas[2 * i + 1] << 4);
+ }
+}
+
+
+
+
+
+#ifdef _DEBUG
+
+void cChunkDesc::VerifyHeightmap(void)
+{
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int y = cChunkDef::Height - 1; y > 0; y--)
+ {
+ BLOCKTYPE BlockType = GetBlockType(x, y, z);
+ if (BlockType != E_BLOCK_AIR)
+ {
+ int Height = GetHeight(x, z);
+ ASSERT(Height == y);
+ break;
+ }
+ } // for y
+ } // for z
+ } // for x
+}
+
+#endif // _DEBUG
+
+
+
+
+
diff --git a/source/Generating/ComposableGenerator.cpp b/source/Generating/ComposableGenerator.cpp
index c038712aa..fb31ec7b2 100644
--- a/source/Generating/ComposableGenerator.cpp
+++ b/source/Generating/ComposableGenerator.cpp
@@ -1,524 +1,524 @@
-
-// ComposableGenerator.cpp
-
-// Implements the cComposableGenerator class representing the chunk generator that takes the composition approach to generating chunks
-
-#include "Globals.h"
-
-#include "ComposableGenerator.h"
-#include "../World.h"
-#include "../../iniFile/iniFile.h"
-#include "../Root.h"
-
-// Individual composed algorithms:
-#include "BioGen.h"
-#include "HeiGen.h"
-#include "CompoGen.h"
-#include "StructGen.h"
-#include "FinishGen.h"
-
-#include "Caves.h"
-#include "DistortedHeightmap.h"
-#include "EndGen.h"
-#include "MineShafts.h"
-#include "Noise3DGenerator.h"
-#include "Ravines.h"
-
-
-
-
-
-
-
-
-
-
-cComposableGenerator::cComposableGenerator(cChunkGenerator & a_ChunkGenerator) :
- super(a_ChunkGenerator),
- m_BiomeGen(NULL),
- m_HeightGen(NULL),
- m_CompositionGen(NULL),
- m_UnderlyingBiomeGen(NULL),
- m_UnderlyingHeightGen(NULL),
- m_UnderlyingCompositionGen(NULL)
-{
-}
-
-
-
-
-
-cComposableGenerator::~cComposableGenerator()
-{
- // Delete the generating composition:
- for (cFinishGenList::const_iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
- {
- delete *itr;
- }
- m_FinishGens.clear();
- for (cStructureGenList::const_iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
- {
- delete *itr;
- }
- m_StructureGens.clear();
-
- delete m_CompositionGen;
- m_CompositionGen = NULL;
- delete m_HeightGen;
- m_HeightGen = NULL;
- delete m_BiomeGen;
- m_BiomeGen = NULL;
- delete m_UnderlyingCompositionGen;
- m_UnderlyingCompositionGen = NULL;
- delete m_UnderlyingHeightGen;
- m_UnderlyingHeightGen = NULL;
- delete m_UnderlyingBiomeGen;
- m_UnderlyingBiomeGen = NULL;
-}
-
-
-
-
-
-void cComposableGenerator::Initialize(cWorld * a_World, cIniFile & a_IniFile)
-{
- super::Initialize(a_World, a_IniFile);
-
- InitBiomeGen(a_IniFile);
- InitHeightGen(a_IniFile);
- InitCompositionGen(a_IniFile);
- InitStructureGens(a_IniFile);
- InitFinishGens(a_IniFile);
-}
-
-
-
-
-
-void cComposableGenerator::GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- if (m_BiomeGen != NULL) // Quick fix for generator deinitializing before the world storage finishes loading
- {
- m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_BiomeMap);
- }
-}
-
-
-
-
-
-void cComposableGenerator::DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc)
-{
- if (a_ChunkDesc.IsUsingDefaultBiomes())
- {
- m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_ChunkDesc.GetBiomeMap());
- }
-
- if (a_ChunkDesc.IsUsingDefaultHeight())
- {
- m_HeightGen->GenHeightMap(a_ChunkX, a_ChunkZ, a_ChunkDesc.GetHeightMap());
- }
-
- if (a_ChunkDesc.IsUsingDefaultComposition())
- {
- m_CompositionGen->ComposeTerrain(a_ChunkDesc);
- }
-
- if (a_ChunkDesc.IsUsingDefaultStructures())
- {
- for (cStructureGenList::iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
- {
- (*itr)->GenStructures(a_ChunkDesc);
- } // for itr - m_StructureGens[]
- }
-
- if (a_ChunkDesc.IsUsingDefaultFinish())
- {
- for (cFinishGenList::iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
- {
- (*itr)->GenFinish(a_ChunkDesc);
- } // for itr - m_FinishGens[]
- }
-}
-
-
-
-
-
-void cComposableGenerator::InitBiomeGen(cIniFile & a_IniFile)
-{
- AString BiomeGenName = a_IniFile.GetValueSet("Generator", "BiomeGen", "");
- if (BiomeGenName.empty())
- {
- LOGWARN("[Generator]::BiomeGen value not found in world.ini, using \"MultiStepMap\".");
- BiomeGenName = "MultiStepMap";
- }
-
- int Seed = m_ChunkGenerator.GetSeed();
- bool CacheOffByDefault = false;
- if (NoCaseCompare(BiomeGenName, "constant") == 0)
- {
- m_BiomeGen = new cBioGenConstant;
- CacheOffByDefault = true; // we're generating faster than a cache would retrieve data :)
- }
- else if (NoCaseCompare(BiomeGenName, "checkerboard") == 0)
- {
- m_BiomeGen = new cBioGenCheckerboard;
- CacheOffByDefault = true; // we're (probably) generating faster than a cache would retrieve data
- }
- else if (NoCaseCompare(BiomeGenName, "voronoi") == 0)
- {
- m_BiomeGen = new cBioGenVoronoi(Seed);
- }
- else if (NoCaseCompare(BiomeGenName, "distortedvoronoi") == 0)
- {
- m_BiomeGen = new cBioGenDistortedVoronoi(Seed);
- }
- else
- {
- if (NoCaseCompare(BiomeGenName, "multistepmap") != 0)
- {
- LOGWARNING("Unknown BiomeGen \"%s\", using \"MultiStepMap\" instead.", BiomeGenName.c_str());
- }
- m_BiomeGen = new cBioGenMultiStepMap(Seed);
-
- /*
- // Performance-testing:
- LOGINFO("Measuring performance of cBioGenMultiStepMap...");
- clock_t BeginTick = clock();
- for (int x = 0; x < 5000; x++)
- {
- cChunkDef::BiomeMap Biomes;
- m_BiomeGen->GenBiomes(x * 5, x * 5, Biomes);
- }
- clock_t Duration = clock() - BeginTick;
- LOGINFO("cBioGenMultiStepMap for 5000 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
- //*/
- }
-
- // Add a cache, if requested:
- int CacheSize = a_IniFile.GetValueSetI("Generator", "BiomeGenCacheSize", CacheOffByDefault ? 0 : 64);
- if (CacheSize > 0)
- {
- if (CacheSize < 4)
- {
- LOGWARNING("Biomegen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
- CacheSize, 4
- );
- CacheSize = 4;
- }
- LOGINFO("Using a cache for biomegen of size %d.", CacheSize);
- m_UnderlyingBiomeGen = m_BiomeGen;
- m_BiomeGen = new cBioGenCache(m_UnderlyingBiomeGen, CacheSize);
- }
- m_BiomeGen->Initialize(a_IniFile);
-}
-
-
-
-
-
-void cComposableGenerator::InitHeightGen(cIniFile & a_IniFile)
-{
- AString HeightGenName = a_IniFile.GetValueSet("Generator", "HeightGen", "");
- if (HeightGenName.empty())
- {
- LOGWARN("[Generator]::HeightGen value not found in world.ini, using \"Biomal\".");
- HeightGenName = "Biomal";
- }
-
- int Seed = m_ChunkGenerator.GetSeed();
- bool CacheOffByDefault = false;
- if (NoCaseCompare(HeightGenName, "flat") == 0)
- {
- int Height = a_IniFile.GetValueSetI("Generator", "FlatHeight", 5);
- m_HeightGen = new cHeiGenFlat(Height);
- CacheOffByDefault = true; // We're generating faster than a cache would retrieve data
- }
- else if (NoCaseCompare(HeightGenName, "classic") == 0)
- {
- // These used to be in terrain.ini, but now they are in world.ini (so that multiple worlds can have different values):
- float HeightFreq1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq1", 0.1);
- float HeightFreq2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq2", 1.0);
- float HeightFreq3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq3", 2.0);
- float HeightAmp1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp1", 1.0);
- float HeightAmp2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp2", 0.5);
- float HeightAmp3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp3", 0.5);
- m_HeightGen = new cHeiGenClassic(Seed, HeightFreq1, HeightAmp1, HeightFreq2, HeightAmp2, HeightFreq3, HeightAmp3);
- }
- else if (NoCaseCompare(HeightGenName, "DistortedHeightmap") == 0)
- {
- m_HeightGen = new cDistortedHeightmap(Seed, *m_BiomeGen);
- ((cDistortedHeightmap *)m_HeightGen)->Initialize(a_IniFile);
- }
- else if (NoCaseCompare(HeightGenName, "End") == 0)
- {
- m_HeightGen = new cEndGen(Seed);
- ((cEndGen *)m_HeightGen)->Initialize(a_IniFile);
- }
- else if (NoCaseCompare(HeightGenName, "Noise3D") == 0)
- {
- m_HeightGen = new cNoise3DComposable(Seed);
- ((cNoise3DComposable *)m_HeightGen)->Initialize(a_IniFile);
- }
- else // "biomal" or <not found>
- {
- if (NoCaseCompare(HeightGenName, "biomal") != 0)
- {
- LOGWARN("Unknown HeightGen \"%s\", using \"Biomal\" instead.", HeightGenName.c_str());
- }
- m_HeightGen = new cHeiGenBiomal(Seed, *m_BiomeGen);
-
- /*
- // Performance-testing:
- LOGINFO("Measuring performance of cHeiGenBiomal...");
- clock_t BeginTick = clock();
- for (int x = 0; x < 500; x++)
- {
- cChunkDef::HeightMap Heights;
- m_HeightGen->GenHeightMap(x * 5, x * 5, Heights);
- }
- clock_t Duration = clock() - BeginTick;
- LOGINFO("HeightGen for 500 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
- //*/
- }
-
- // Add a cache, if requested:
- int CacheSize = a_IniFile.GetValueSetI("Generator", "HeightGenCacheSize", CacheOffByDefault ? 0 : 64);
- if (CacheSize > 0)
- {
- if (CacheSize < 4)
- {
- LOGWARNING("Heightgen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
- CacheSize, 4
- );
- CacheSize = 4;
- }
- LOGINFO("Using a cache for Heightgen of size %d.", CacheSize);
- m_UnderlyingHeightGen = m_HeightGen;
- m_HeightGen = new cHeiGenCache(m_UnderlyingHeightGen, CacheSize);
- }
-}
-
-
-
-
-
-void cComposableGenerator::InitCompositionGen(cIniFile & a_IniFile)
-{
- AString CompoGenName = a_IniFile.GetValueSet("Generator", "CompositionGen", "");
- if (CompoGenName.empty())
- {
- LOGWARN("[Generator]::CompositionGen value not found in world.ini, using \"Biomal\".");
- CompoGenName = "Biomal";
- }
- if (NoCaseCompare(CompoGenName, "sameblock") == 0)
- {
- int Block = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "SameBlockType", "stone");
- bool Bedrocked = (a_IniFile.GetValueSetI("Generator", "SameBlockBedrocked", 1) != 0);
- m_CompositionGen = new cCompoGenSameBlock((BLOCKTYPE)Block, Bedrocked);
- }
- else if (NoCaseCompare(CompoGenName, "debugbiomes") == 0)
- {
- m_CompositionGen = new cCompoGenDebugBiomes;
- }
- else if (NoCaseCompare(CompoGenName, "classic") == 0)
- {
- int SeaLevel = a_IniFile.GetValueSetI("Generator", "ClassicSeaLevel", 60);
- int BeachHeight = a_IniFile.GetValueSetI("Generator", "ClassicBeachHeight", 2);
- int BeachDepth = a_IniFile.GetValueSetI("Generator", "ClassicBeachDepth", 4);
- BLOCKTYPE BlockTop = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockTop", "grass");
- BLOCKTYPE BlockMiddle = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockMiddle", "dirt");
- BLOCKTYPE BlockBottom = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockBottom", "stone");
- BLOCKTYPE BlockBeach = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockBeach", "sand");
- BLOCKTYPE BlockBeachBottom = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockBeachBottom", "sandstone");
- BLOCKTYPE BlockSea = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockSea", "stationarywater");
- m_CompositionGen = new cCompoGenClassic(
- SeaLevel, BeachHeight, BeachDepth, BlockTop, BlockMiddle, BlockBottom, BlockBeach,
- BlockBeachBottom, BlockSea
- );
- }
- else if (NoCaseCompare(CompoGenName, "DistortedHeightmap") == 0)
- {
- m_CompositionGen = new cDistortedHeightmap(m_ChunkGenerator.GetSeed(), *m_BiomeGen);
- ((cDistortedHeightmap *)m_CompositionGen)->Initialize(a_IniFile);
- }
- else if (NoCaseCompare(CompoGenName, "end") == 0)
- {
- m_CompositionGen = new cEndGen(m_ChunkGenerator.GetSeed());
- ((cEndGen *)m_CompositionGen)->Initialize(a_IniFile);
- }
- else if (NoCaseCompare(CompoGenName, "nether") == 0)
- {
- m_CompositionGen = new cCompoGenNether(m_ChunkGenerator.GetSeed());
- }
- else if (NoCaseCompare(CompoGenName, "Noise3D") == 0)
- {
- m_CompositionGen = new cNoise3DComposable(m_ChunkGenerator.GetSeed());
- ((cNoise3DComposable *)m_CompositionGen)->Initialize(a_IniFile);
- }
- else
- {
- if (NoCaseCompare(CompoGenName, "biomal") != 0)
- {
- LOGWARN("Unknown CompositionGen \"%s\", using \"biomal\" instead.", CompoGenName.c_str());
- }
- int SeaLevel = a_IniFile.GetValueSetI("Generator", "BiomalSeaLevel", 62);
- int Seed = m_ChunkGenerator.GetSeed();
- m_CompositionGen = new cCompoGenBiomal(Seed, SeaLevel);
-
- /*
- // Performance-testing:
- LOGINFO("Measuring performance of cCompoGenBiomal...");
- clock_t BeginTick = clock();
- for (int x = 0; x < 500; x++)
- {
- cChunkDesc Desc(200 + x * 8, 200 + x * 8);
- m_BiomeGen->GenBiomes(Desc.GetChunkX(), Desc.GetChunkZ(), Desc.GetBiomeMap());
- m_HeightGen->GenHeightMap(Desc.GetChunkX(), Desc.GetChunkZ(), Desc.GetHeightMap());
- m_CompositionGen->ComposeTerrain(Desc);
- }
- clock_t Duration = clock() - BeginTick;
- LOGINFO("CompositionGen for 500 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
- //*/
- }
-
- int CompoGenCacheSize = a_IniFile.GetValueSetI("Generator", "CompositionGenCacheSize", 64);
- if (CompoGenCacheSize > 1)
- {
- m_UnderlyingCompositionGen = m_CompositionGen;
- m_CompositionGen = new cCompoGenCache(m_UnderlyingCompositionGen, 32);
- }
-}
-
-
-
-
-
-void cComposableGenerator::InitStructureGens(cIniFile & a_IniFile)
-{
- AString Structures = a_IniFile.GetValueSet("Generator", "Structures", "Ravines, WormNestCaves, WaterLakes, LavaLakes, OreNests, Trees");
-
- int Seed = m_ChunkGenerator.GetSeed();
- AStringVector Str = StringSplitAndTrim(Structures, ",");
- for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
- {
- if (NoCaseCompare(*itr, "DualRidgeCaves") == 0)
- {
- float Threshold = (float)a_IniFile.GetValueSetF("Generator", "DualRidgeCavesThreshold", 0.3);
- m_StructureGens.push_back(new cStructGenDualRidgeCaves(Seed, Threshold));
- }
- else if (NoCaseCompare(*itr, "DirectOverhangs") == 0)
- {
- m_StructureGens.push_back(new cStructGenDirectOverhangs(Seed));
- }
- else if (NoCaseCompare(*itr, "DistortedMembraneOverhangs") == 0)
- {
- m_StructureGens.push_back(new cStructGenDistortedMembraneOverhangs(Seed));
- }
- else if (NoCaseCompare(*itr, "LavaLakes") == 0)
- {
- int Probability = a_IniFile.GetValueSetI("Generator", "LavaLakesProbability", 10);
- m_StructureGens.push_back(new cStructGenLakes(Seed * 5 + 16873, E_BLOCK_STATIONARY_LAVA, *m_HeightGen, Probability));
- }
- else if (NoCaseCompare(*itr, "MarbleCaves") == 0)
- {
- m_StructureGens.push_back(new cStructGenMarbleCaves(Seed));
- }
- else if (NoCaseCompare(*itr, "MineShafts") == 0)
- {
- int GridSize = a_IniFile.GetValueSetI("Generator", "MineShaftsGridSize", 512);
- int MaxSystemSize = a_IniFile.GetValueSetI("Generator", "MineShaftsMaxSystemSize", 160);
- int ChanceCorridor = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceCorridor", 600);
- int ChanceCrossing = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceCrossing", 200);
- int ChanceStaircase = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceStaircase", 200);
- m_StructureGens.push_back(new cStructGenMineShafts(
- Seed, GridSize, MaxSystemSize,
- ChanceCorridor, ChanceCrossing, ChanceStaircase
- ));
- }
- else if (NoCaseCompare(*itr, "OreNests") == 0)
- {
- m_StructureGens.push_back(new cStructGenOreNests(Seed));
- }
- else if (NoCaseCompare(*itr, "Ravines") == 0)
- {
- m_StructureGens.push_back(new cStructGenRavines(Seed, 128));
- }
- else if (NoCaseCompare(*itr, "Trees") == 0)
- {
- m_StructureGens.push_back(new cStructGenTrees(Seed, m_BiomeGen, m_HeightGen, m_CompositionGen));
- }
- else if (NoCaseCompare(*itr, "WaterLakes") == 0)
- {
- int Probability = a_IniFile.GetValueSetI("Generator", "WaterLakesProbability", 25);
- m_StructureGens.push_back(new cStructGenLakes(Seed * 3 + 652, E_BLOCK_STATIONARY_WATER, *m_HeightGen, Probability));
- }
- else if (NoCaseCompare(*itr, "WormNestCaves") == 0)
- {
- m_StructureGens.push_back(new cStructGenWormNestCaves(Seed));
- }
- else
- {
- LOGWARNING("Unknown structure generator: \"%s\". Ignoring.", itr->c_str());
- }
- } // for itr - Str[]
-}
-
-
-
-
-
-void cComposableGenerator::InitFinishGens(cIniFile & a_IniFile)
-{
- int Seed = m_ChunkGenerator.GetSeed();
- AString Structures = a_IniFile.GetValueSet("Generator", "Finishers", "SprinkleFoliage,Ice,Snow,Lilypads,BottomLava,DeadBushes,PreSimulator");
-
- AStringVector Str = StringSplitAndTrim(Structures, ",");
- for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
- {
- // Finishers, alpha-sorted:
- if (NoCaseCompare(*itr, "BottomLava") == 0)
- {
- int DefaultBottomLavaLevel = (m_World->GetDimension() == dimNether) ? 30 : 10;
- int BottomLavaLevel = a_IniFile.GetValueSetI("Generator", "BottomLavaLevel", DefaultBottomLavaLevel);
- m_FinishGens.push_back(new cFinishGenBottomLava(BottomLavaLevel));
- }
- else if (NoCaseCompare(*itr, "DeadBushes") == 0)
- {
- m_FinishGens.push_back(new cFinishGenSingleBiomeSingleTopBlock(Seed, E_BLOCK_DEAD_BUSH, biDesert, 2, E_BLOCK_SAND, E_BLOCK_SAND));
- }
- else if (NoCaseCompare(*itr, "Ice") == 0)
- {
- m_FinishGens.push_back(new cFinishGenIce);
- }
- else if (NoCaseCompare(*itr, "LavaSprings") == 0)
- {
- m_FinishGens.push_back(new cFinishGenFluidSprings(Seed, E_BLOCK_LAVA, a_IniFile, *m_World));
- }
- else if (NoCaseCompare(*itr, "Lilypads") == 0)
- {
- m_FinishGens.push_back(new cFinishGenSingleBiomeSingleTopBlock(Seed, E_BLOCK_LILY_PAD, biSwampland, 4, E_BLOCK_WATER, E_BLOCK_STATIONARY_WATER));
- }
- else if (NoCaseCompare(*itr, "PreSimulator") == 0)
- {
- m_FinishGens.push_back(new cFinishGenPreSimulator);
- }
- else if (NoCaseCompare(*itr, "Snow") == 0)
- {
- m_FinishGens.push_back(new cFinishGenSnow);
- }
- else if (NoCaseCompare(*itr, "SprinkleFoliage") == 0)
- {
- m_FinishGens.push_back(new cFinishGenSprinkleFoliage(Seed));
- }
- else if (NoCaseCompare(*itr, "WaterSprings") == 0)
- {
- m_FinishGens.push_back(new cFinishGenFluidSprings(Seed, E_BLOCK_WATER, a_IniFile, *m_World));
- }
- } // for itr - Str[]
-}
-
-
-
-
+
+// ComposableGenerator.cpp
+
+// Implements the cComposableGenerator class representing the chunk generator that takes the composition approach to generating chunks
+
+#include "Globals.h"
+
+#include "ComposableGenerator.h"
+#include "../World.h"
+#include "../../iniFile/iniFile.h"
+#include "../Root.h"
+
+// Individual composed algorithms:
+#include "BioGen.h"
+#include "HeiGen.h"
+#include "CompoGen.h"
+#include "StructGen.h"
+#include "FinishGen.h"
+
+#include "Caves.h"
+#include "DistortedHeightmap.h"
+#include "EndGen.h"
+#include "MineShafts.h"
+#include "Noise3DGenerator.h"
+#include "Ravines.h"
+
+
+
+
+
+
+
+
+
+
+cComposableGenerator::cComposableGenerator(cChunkGenerator & a_ChunkGenerator) :
+ super(a_ChunkGenerator),
+ m_BiomeGen(NULL),
+ m_HeightGen(NULL),
+ m_CompositionGen(NULL),
+ m_UnderlyingBiomeGen(NULL),
+ m_UnderlyingHeightGen(NULL),
+ m_UnderlyingCompositionGen(NULL)
+{
+}
+
+
+
+
+
+cComposableGenerator::~cComposableGenerator()
+{
+ // Delete the generating composition:
+ for (cFinishGenList::const_iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
+ {
+ delete *itr;
+ }
+ m_FinishGens.clear();
+ for (cStructureGenList::const_iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
+ {
+ delete *itr;
+ }
+ m_StructureGens.clear();
+
+ delete m_CompositionGen;
+ m_CompositionGen = NULL;
+ delete m_HeightGen;
+ m_HeightGen = NULL;
+ delete m_BiomeGen;
+ m_BiomeGen = NULL;
+ delete m_UnderlyingCompositionGen;
+ m_UnderlyingCompositionGen = NULL;
+ delete m_UnderlyingHeightGen;
+ m_UnderlyingHeightGen = NULL;
+ delete m_UnderlyingBiomeGen;
+ m_UnderlyingBiomeGen = NULL;
+}
+
+
+
+
+
+void cComposableGenerator::Initialize(cWorld * a_World, cIniFile & a_IniFile)
+{
+ super::Initialize(a_World, a_IniFile);
+
+ InitBiomeGen(a_IniFile);
+ InitHeightGen(a_IniFile);
+ InitCompositionGen(a_IniFile);
+ InitStructureGens(a_IniFile);
+ InitFinishGens(a_IniFile);
+}
+
+
+
+
+
+void cComposableGenerator::GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
+{
+ if (m_BiomeGen != NULL) // Quick fix for generator deinitializing before the world storage finishes loading
+ {
+ m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_BiomeMap);
+ }
+}
+
+
+
+
+
+void cComposableGenerator::DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc)
+{
+ if (a_ChunkDesc.IsUsingDefaultBiomes())
+ {
+ m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, a_ChunkDesc.GetBiomeMap());
+ }
+
+ if (a_ChunkDesc.IsUsingDefaultHeight())
+ {
+ m_HeightGen->GenHeightMap(a_ChunkX, a_ChunkZ, a_ChunkDesc.GetHeightMap());
+ }
+
+ if (a_ChunkDesc.IsUsingDefaultComposition())
+ {
+ m_CompositionGen->ComposeTerrain(a_ChunkDesc);
+ }
+
+ if (a_ChunkDesc.IsUsingDefaultStructures())
+ {
+ for (cStructureGenList::iterator itr = m_StructureGens.begin(); itr != m_StructureGens.end(); ++itr)
+ {
+ (*itr)->GenStructures(a_ChunkDesc);
+ } // for itr - m_StructureGens[]
+ }
+
+ if (a_ChunkDesc.IsUsingDefaultFinish())
+ {
+ for (cFinishGenList::iterator itr = m_FinishGens.begin(); itr != m_FinishGens.end(); ++itr)
+ {
+ (*itr)->GenFinish(a_ChunkDesc);
+ } // for itr - m_FinishGens[]
+ }
+}
+
+
+
+
+
+void cComposableGenerator::InitBiomeGen(cIniFile & a_IniFile)
+{
+ AString BiomeGenName = a_IniFile.GetValueSet("Generator", "BiomeGen", "");
+ if (BiomeGenName.empty())
+ {
+ LOGWARN("[Generator]::BiomeGen value not found in world.ini, using \"MultiStepMap\".");
+ BiomeGenName = "MultiStepMap";
+ }
+
+ int Seed = m_ChunkGenerator.GetSeed();
+ bool CacheOffByDefault = false;
+ if (NoCaseCompare(BiomeGenName, "constant") == 0)
+ {
+ m_BiomeGen = new cBioGenConstant;
+ CacheOffByDefault = true; // we're generating faster than a cache would retrieve data :)
+ }
+ else if (NoCaseCompare(BiomeGenName, "checkerboard") == 0)
+ {
+ m_BiomeGen = new cBioGenCheckerboard;
+ CacheOffByDefault = true; // we're (probably) generating faster than a cache would retrieve data
+ }
+ else if (NoCaseCompare(BiomeGenName, "voronoi") == 0)
+ {
+ m_BiomeGen = new cBioGenVoronoi(Seed);
+ }
+ else if (NoCaseCompare(BiomeGenName, "distortedvoronoi") == 0)
+ {
+ m_BiomeGen = new cBioGenDistortedVoronoi(Seed);
+ }
+ else
+ {
+ if (NoCaseCompare(BiomeGenName, "multistepmap") != 0)
+ {
+ LOGWARNING("Unknown BiomeGen \"%s\", using \"MultiStepMap\" instead.", BiomeGenName.c_str());
+ }
+ m_BiomeGen = new cBioGenMultiStepMap(Seed);
+
+ /*
+ // Performance-testing:
+ LOGINFO("Measuring performance of cBioGenMultiStepMap...");
+ clock_t BeginTick = clock();
+ for (int x = 0; x < 5000; x++)
+ {
+ cChunkDef::BiomeMap Biomes;
+ m_BiomeGen->GenBiomes(x * 5, x * 5, Biomes);
+ }
+ clock_t Duration = clock() - BeginTick;
+ LOGINFO("cBioGenMultiStepMap for 5000 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
+ //*/
+ }
+
+ // Add a cache, if requested:
+ int CacheSize = a_IniFile.GetValueSetI("Generator", "BiomeGenCacheSize", CacheOffByDefault ? 0 : 64);
+ if (CacheSize > 0)
+ {
+ if (CacheSize < 4)
+ {
+ LOGWARNING("Biomegen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
+ CacheSize, 4
+ );
+ CacheSize = 4;
+ }
+ LOGINFO("Using a cache for biomegen of size %d.", CacheSize);
+ m_UnderlyingBiomeGen = m_BiomeGen;
+ m_BiomeGen = new cBioGenCache(m_UnderlyingBiomeGen, CacheSize);
+ }
+ m_BiomeGen->Initialize(a_IniFile);
+}
+
+
+
+
+
+void cComposableGenerator::InitHeightGen(cIniFile & a_IniFile)
+{
+ AString HeightGenName = a_IniFile.GetValueSet("Generator", "HeightGen", "");
+ if (HeightGenName.empty())
+ {
+ LOGWARN("[Generator]::HeightGen value not found in world.ini, using \"Biomal\".");
+ HeightGenName = "Biomal";
+ }
+
+ int Seed = m_ChunkGenerator.GetSeed();
+ bool CacheOffByDefault = false;
+ if (NoCaseCompare(HeightGenName, "flat") == 0)
+ {
+ int Height = a_IniFile.GetValueSetI("Generator", "FlatHeight", 5);
+ m_HeightGen = new cHeiGenFlat(Height);
+ CacheOffByDefault = true; // We're generating faster than a cache would retrieve data
+ }
+ else if (NoCaseCompare(HeightGenName, "classic") == 0)
+ {
+ // These used to be in terrain.ini, but now they are in world.ini (so that multiple worlds can have different values):
+ float HeightFreq1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq1", 0.1);
+ float HeightFreq2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq2", 1.0);
+ float HeightFreq3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq3", 2.0);
+ float HeightAmp1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp1", 1.0);
+ float HeightAmp2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp2", 0.5);
+ float HeightAmp3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp3", 0.5);
+ m_HeightGen = new cHeiGenClassic(Seed, HeightFreq1, HeightAmp1, HeightFreq2, HeightAmp2, HeightFreq3, HeightAmp3);
+ }
+ else if (NoCaseCompare(HeightGenName, "DistortedHeightmap") == 0)
+ {
+ m_HeightGen = new cDistortedHeightmap(Seed, *m_BiomeGen);
+ ((cDistortedHeightmap *)m_HeightGen)->Initialize(a_IniFile);
+ }
+ else if (NoCaseCompare(HeightGenName, "End") == 0)
+ {
+ m_HeightGen = new cEndGen(Seed);
+ ((cEndGen *)m_HeightGen)->Initialize(a_IniFile);
+ }
+ else if (NoCaseCompare(HeightGenName, "Noise3D") == 0)
+ {
+ m_HeightGen = new cNoise3DComposable(Seed);
+ ((cNoise3DComposable *)m_HeightGen)->Initialize(a_IniFile);
+ }
+ else // "biomal" or <not found>
+ {
+ if (NoCaseCompare(HeightGenName, "biomal") != 0)
+ {
+ LOGWARN("Unknown HeightGen \"%s\", using \"Biomal\" instead.", HeightGenName.c_str());
+ }
+ m_HeightGen = new cHeiGenBiomal(Seed, *m_BiomeGen);
+
+ /*
+ // Performance-testing:
+ LOGINFO("Measuring performance of cHeiGenBiomal...");
+ clock_t BeginTick = clock();
+ for (int x = 0; x < 500; x++)
+ {
+ cChunkDef::HeightMap Heights;
+ m_HeightGen->GenHeightMap(x * 5, x * 5, Heights);
+ }
+ clock_t Duration = clock() - BeginTick;
+ LOGINFO("HeightGen for 500 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
+ //*/
+ }
+
+ // Add a cache, if requested:
+ int CacheSize = a_IniFile.GetValueSetI("Generator", "HeightGenCacheSize", CacheOffByDefault ? 0 : 64);
+ if (CacheSize > 0)
+ {
+ if (CacheSize < 4)
+ {
+ LOGWARNING("Heightgen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
+ CacheSize, 4
+ );
+ CacheSize = 4;
+ }
+ LOGINFO("Using a cache for Heightgen of size %d.", CacheSize);
+ m_UnderlyingHeightGen = m_HeightGen;
+ m_HeightGen = new cHeiGenCache(m_UnderlyingHeightGen, CacheSize);
+ }
+}
+
+
+
+
+
+void cComposableGenerator::InitCompositionGen(cIniFile & a_IniFile)
+{
+ AString CompoGenName = a_IniFile.GetValueSet("Generator", "CompositionGen", "");
+ if (CompoGenName.empty())
+ {
+ LOGWARN("[Generator]::CompositionGen value not found in world.ini, using \"Biomal\".");
+ CompoGenName = "Biomal";
+ }
+ if (NoCaseCompare(CompoGenName, "sameblock") == 0)
+ {
+ int Block = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "SameBlockType", "stone");
+ bool Bedrocked = (a_IniFile.GetValueSetI("Generator", "SameBlockBedrocked", 1) != 0);
+ m_CompositionGen = new cCompoGenSameBlock((BLOCKTYPE)Block, Bedrocked);
+ }
+ else if (NoCaseCompare(CompoGenName, "debugbiomes") == 0)
+ {
+ m_CompositionGen = new cCompoGenDebugBiomes;
+ }
+ else if (NoCaseCompare(CompoGenName, "classic") == 0)
+ {
+ int SeaLevel = a_IniFile.GetValueSetI("Generator", "ClassicSeaLevel", 60);
+ int BeachHeight = a_IniFile.GetValueSetI("Generator", "ClassicBeachHeight", 2);
+ int BeachDepth = a_IniFile.GetValueSetI("Generator", "ClassicBeachDepth", 4);
+ BLOCKTYPE BlockTop = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockTop", "grass");
+ BLOCKTYPE BlockMiddle = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockMiddle", "dirt");
+ BLOCKTYPE BlockBottom = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockBottom", "stone");
+ BLOCKTYPE BlockBeach = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockBeach", "sand");
+ BLOCKTYPE BlockBeachBottom = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockBeachBottom", "sandstone");
+ BLOCKTYPE BlockSea = m_ChunkGenerator.GetIniBlock(a_IniFile, "Generator", "ClassicBlockSea", "stationarywater");
+ m_CompositionGen = new cCompoGenClassic(
+ SeaLevel, BeachHeight, BeachDepth, BlockTop, BlockMiddle, BlockBottom, BlockBeach,
+ BlockBeachBottom, BlockSea
+ );
+ }
+ else if (NoCaseCompare(CompoGenName, "DistortedHeightmap") == 0)
+ {
+ m_CompositionGen = new cDistortedHeightmap(m_ChunkGenerator.GetSeed(), *m_BiomeGen);
+ ((cDistortedHeightmap *)m_CompositionGen)->Initialize(a_IniFile);
+ }
+ else if (NoCaseCompare(CompoGenName, "end") == 0)
+ {
+ m_CompositionGen = new cEndGen(m_ChunkGenerator.GetSeed());
+ ((cEndGen *)m_CompositionGen)->Initialize(a_IniFile);
+ }
+ else if (NoCaseCompare(CompoGenName, "nether") == 0)
+ {
+ m_CompositionGen = new cCompoGenNether(m_ChunkGenerator.GetSeed());
+ }
+ else if (NoCaseCompare(CompoGenName, "Noise3D") == 0)
+ {
+ m_CompositionGen = new cNoise3DComposable(m_ChunkGenerator.GetSeed());
+ ((cNoise3DComposable *)m_CompositionGen)->Initialize(a_IniFile);
+ }
+ else
+ {
+ if (NoCaseCompare(CompoGenName, "biomal") != 0)
+ {
+ LOGWARN("Unknown CompositionGen \"%s\", using \"biomal\" instead.", CompoGenName.c_str());
+ }
+ int SeaLevel = a_IniFile.GetValueSetI("Generator", "BiomalSeaLevel", 62);
+ int Seed = m_ChunkGenerator.GetSeed();
+ m_CompositionGen = new cCompoGenBiomal(Seed, SeaLevel);
+
+ /*
+ // Performance-testing:
+ LOGINFO("Measuring performance of cCompoGenBiomal...");
+ clock_t BeginTick = clock();
+ for (int x = 0; x < 500; x++)
+ {
+ cChunkDesc Desc(200 + x * 8, 200 + x * 8);
+ m_BiomeGen->GenBiomes(Desc.GetChunkX(), Desc.GetChunkZ(), Desc.GetBiomeMap());
+ m_HeightGen->GenHeightMap(Desc.GetChunkX(), Desc.GetChunkZ(), Desc.GetHeightMap());
+ m_CompositionGen->ComposeTerrain(Desc);
+ }
+ clock_t Duration = clock() - BeginTick;
+ LOGINFO("CompositionGen for 500 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
+ //*/
+ }
+
+ int CompoGenCacheSize = a_IniFile.GetValueSetI("Generator", "CompositionGenCacheSize", 64);
+ if (CompoGenCacheSize > 1)
+ {
+ m_UnderlyingCompositionGen = m_CompositionGen;
+ m_CompositionGen = new cCompoGenCache(m_UnderlyingCompositionGen, 32);
+ }
+}
+
+
+
+
+
+void cComposableGenerator::InitStructureGens(cIniFile & a_IniFile)
+{
+ AString Structures = a_IniFile.GetValueSet("Generator", "Structures", "Ravines, WormNestCaves, WaterLakes, LavaLakes, OreNests, Trees");
+
+ int Seed = m_ChunkGenerator.GetSeed();
+ AStringVector Str = StringSplitAndTrim(Structures, ",");
+ for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
+ {
+ if (NoCaseCompare(*itr, "DualRidgeCaves") == 0)
+ {
+ float Threshold = (float)a_IniFile.GetValueSetF("Generator", "DualRidgeCavesThreshold", 0.3);
+ m_StructureGens.push_back(new cStructGenDualRidgeCaves(Seed, Threshold));
+ }
+ else if (NoCaseCompare(*itr, "DirectOverhangs") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenDirectOverhangs(Seed));
+ }
+ else if (NoCaseCompare(*itr, "DistortedMembraneOverhangs") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenDistortedMembraneOverhangs(Seed));
+ }
+ else if (NoCaseCompare(*itr, "LavaLakes") == 0)
+ {
+ int Probability = a_IniFile.GetValueSetI("Generator", "LavaLakesProbability", 10);
+ m_StructureGens.push_back(new cStructGenLakes(Seed * 5 + 16873, E_BLOCK_STATIONARY_LAVA, *m_HeightGen, Probability));
+ }
+ else if (NoCaseCompare(*itr, "MarbleCaves") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenMarbleCaves(Seed));
+ }
+ else if (NoCaseCompare(*itr, "MineShafts") == 0)
+ {
+ int GridSize = a_IniFile.GetValueSetI("Generator", "MineShaftsGridSize", 512);
+ int MaxSystemSize = a_IniFile.GetValueSetI("Generator", "MineShaftsMaxSystemSize", 160);
+ int ChanceCorridor = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceCorridor", 600);
+ int ChanceCrossing = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceCrossing", 200);
+ int ChanceStaircase = a_IniFile.GetValueSetI("Generator", "MineShaftsChanceStaircase", 200);
+ m_StructureGens.push_back(new cStructGenMineShafts(
+ Seed, GridSize, MaxSystemSize,
+ ChanceCorridor, ChanceCrossing, ChanceStaircase
+ ));
+ }
+ else if (NoCaseCompare(*itr, "OreNests") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenOreNests(Seed));
+ }
+ else if (NoCaseCompare(*itr, "Ravines") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenRavines(Seed, 128));
+ }
+ else if (NoCaseCompare(*itr, "Trees") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenTrees(Seed, m_BiomeGen, m_HeightGen, m_CompositionGen));
+ }
+ else if (NoCaseCompare(*itr, "WaterLakes") == 0)
+ {
+ int Probability = a_IniFile.GetValueSetI("Generator", "WaterLakesProbability", 25);
+ m_StructureGens.push_back(new cStructGenLakes(Seed * 3 + 652, E_BLOCK_STATIONARY_WATER, *m_HeightGen, Probability));
+ }
+ else if (NoCaseCompare(*itr, "WormNestCaves") == 0)
+ {
+ m_StructureGens.push_back(new cStructGenWormNestCaves(Seed));
+ }
+ else
+ {
+ LOGWARNING("Unknown structure generator: \"%s\". Ignoring.", itr->c_str());
+ }
+ } // for itr - Str[]
+}
+
+
+
+
+
+void cComposableGenerator::InitFinishGens(cIniFile & a_IniFile)
+{
+ int Seed = m_ChunkGenerator.GetSeed();
+ AString Structures = a_IniFile.GetValueSet("Generator", "Finishers", "SprinkleFoliage,Ice,Snow,Lilypads,BottomLava,DeadBushes,PreSimulator");
+
+ AStringVector Str = StringSplitAndTrim(Structures, ",");
+ for (AStringVector::const_iterator itr = Str.begin(); itr != Str.end(); ++itr)
+ {
+ // Finishers, alpha-sorted:
+ if (NoCaseCompare(*itr, "BottomLava") == 0)
+ {
+ int DefaultBottomLavaLevel = (m_World->GetDimension() == dimNether) ? 30 : 10;
+ int BottomLavaLevel = a_IniFile.GetValueSetI("Generator", "BottomLavaLevel", DefaultBottomLavaLevel);
+ m_FinishGens.push_back(new cFinishGenBottomLava(BottomLavaLevel));
+ }
+ else if (NoCaseCompare(*itr, "DeadBushes") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenSingleBiomeSingleTopBlock(Seed, E_BLOCK_DEAD_BUSH, biDesert, 2, E_BLOCK_SAND, E_BLOCK_SAND));
+ }
+ else if (NoCaseCompare(*itr, "Ice") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenIce);
+ }
+ else if (NoCaseCompare(*itr, "LavaSprings") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenFluidSprings(Seed, E_BLOCK_LAVA, a_IniFile, *m_World));
+ }
+ else if (NoCaseCompare(*itr, "Lilypads") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenSingleBiomeSingleTopBlock(Seed, E_BLOCK_LILY_PAD, biSwampland, 4, E_BLOCK_WATER, E_BLOCK_STATIONARY_WATER));
+ }
+ else if (NoCaseCompare(*itr, "PreSimulator") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenPreSimulator);
+ }
+ else if (NoCaseCompare(*itr, "Snow") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenSnow);
+ }
+ else if (NoCaseCompare(*itr, "SprinkleFoliage") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenSprinkleFoliage(Seed));
+ }
+ else if (NoCaseCompare(*itr, "WaterSprings") == 0)
+ {
+ m_FinishGens.push_back(new cFinishGenFluidSprings(Seed, E_BLOCK_WATER, a_IniFile, *m_World));
+ }
+ } // for itr - Str[]
+}
+
+
+
+
diff --git a/source/Generating/ComposableGenerator.h b/source/Generating/ComposableGenerator.h
index c32e7181f..1d5c98e5d 100644
--- a/source/Generating/ComposableGenerator.h
+++ b/source/Generating/ComposableGenerator.h
@@ -1,175 +1,175 @@
-
-// ComposableGenerator.h
-
-// Declares the cComposableGenerator class representing the chunk generator that takes the composition approach to generating chunks
-
-/*
-Generating works by composing several algorithms:
-Biome, TerrainHeight, TerrainComposition, Ores, Structures and SmallFoliage
-Each algorithm may be chosen from a pool of available algorithms in the same class and combined with others,
-based on user's preferences in the world.ini.
-See http://forum.mc-server.org/showthread.php?tid=409 for details.
-*/
-
-
-
-
-
-#pragma once
-
-#include "ChunkGenerator.h"
-#include "ChunkDesc.h"
-
-
-
-
-
-// fwd: Noise3DGenerator.h
-class cNoise3DComposable;
-
-// fwd: DistortedHeightmap.h
-class cDistortedHeightmap;
-
-
-
-
-
-/** The interface that a biome generator must implement
-A biome generator takes chunk coords on input and outputs an array of biome indices for that chunk on output.
-The output array is sequenced in the same way as the MapChunk packet's biome data.
-*/
-class cBiomeGen
-{
-public:
- virtual ~cBiomeGen() {} // Force a virtual destructor in descendants
-
- /// Generates biomes for the given chunk
- virtual void GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) = 0;
-
- /// Reads parameters from the ini file, prepares generator for use.
- virtual void Initialize(cIniFile & a_IniFile) {}
-} ;
-
-
-
-
-
-/** The interface that a terrain height generator must implement
-A terrain height generator takes chunk coords on input and outputs an array of terrain heights for that chunk.
-The output array is sequenced in the same way as the BiomeGen's biome data.
-The generator may request biome information from the underlying BiomeGen, it may even request information for
-other chunks than the one it's currently generating (possibly neighbors - for averaging)
-*/
-class cTerrainHeightGen
-{
-public:
- virtual ~cTerrainHeightGen() {} // Force a virtual destructor in descendants
-
- /// Generates heightmap for the given chunk
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) = 0;
-} ;
-
-
-
-
-
-/** The interface that a terrain composition generator must implement
-Terrain composition takes chunk coords on input and outputs the blockdata for that entire chunk, along with
-the list of entities. It is supposed to make use of the underlying TerrainHeightGen and BiomeGen for that purpose,
-but it may request information for other chunks than the one it's currently generating from them.
-*/
-class cTerrainCompositionGen
-{
-public:
- virtual ~cTerrainCompositionGen() {} // Force a virtual destructor in descendants
-
- virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) = 0;
-} ;
-
-
-
-
-
-/** The interface that a structure generator must implement
-Structures are generated after the terrain composition took place. It should modify the blocktype data to account
-for whatever structures the generator is generating.
-Note that ores are considered structures too, at least from the interface point of view.
-Also note that a worldgenerator may contain multiple structure generators, one for each type of structure
-*/
-class cStructureGen
-{
-public:
- virtual ~cStructureGen() {} // Force a virtual destructor in descendants
-
- virtual void GenStructures(cChunkDesc & a_ChunkDesc) = 0;
-} ;
-
-typedef std::list<cStructureGen *> cStructureGenList;
-
-
-
-
-
-/** The interface that a finisher must implement
-Finisher implements small additions after all structures have been generated.
-*/
-class cFinishGen
-{
-public:
- virtual ~cFinishGen() {} // Force a virtual destructor in descendants
-
- virtual void GenFinish(cChunkDesc & a_ChunkDesc) = 0;
-} ;
-
-typedef std::list<cFinishGen *> cFinishGenList;
-
-
-
-
-
-class cComposableGenerator :
- public cChunkGenerator::cGenerator
-{
- typedef cChunkGenerator::cGenerator super;
-
-public:
- cComposableGenerator(cChunkGenerator & a_ChunkGenerator);
- virtual ~cComposableGenerator();
-
- virtual void Initialize(cWorld * a_World, cIniFile & a_IniFile) override;
- virtual void GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override;
- virtual void DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc) override;
-
-protected:
- // The generation composition:
- cBiomeGen * m_BiomeGen;
- cTerrainHeightGen * m_HeightGen;
- cTerrainCompositionGen * m_CompositionGen;
- cStructureGenList m_StructureGens;
- cFinishGenList m_FinishGens;
-
- // Generators underlying the caches:
- cBiomeGen * m_UnderlyingBiomeGen;
- cTerrainHeightGen * m_UnderlyingHeightGen;
- cTerrainCompositionGen * m_UnderlyingCompositionGen;
-
-
- /// Reads the biome gen settings from the ini and initializes m_BiomeGen accordingly
- void InitBiomeGen(cIniFile & a_IniFile);
-
- /// Reads the HeightGen settings from the ini and initializes m_HeightGen accordingly
- void InitHeightGen(cIniFile & a_IniFile);
-
- /// Reads the CompositionGen settings from the ini and initializes m_CompositionGen accordingly
- void InitCompositionGen(cIniFile & a_IniFile);
-
- /// Reads the structures to generate from the ini and initializes m_StructureGens accordingly
- void InitStructureGens(cIniFile & a_IniFile);
-
- /// Reads the finishers from the ini and initializes m_FinishGens accordingly
- void InitFinishGens(cIniFile & a_IniFile);
-} ;
-
-
-
-
+
+// ComposableGenerator.h
+
+// Declares the cComposableGenerator class representing the chunk generator that takes the composition approach to generating chunks
+
+/*
+Generating works by composing several algorithms:
+Biome, TerrainHeight, TerrainComposition, Ores, Structures and SmallFoliage
+Each algorithm may be chosen from a pool of available algorithms in the same class and combined with others,
+based on user's preferences in the world.ini.
+See http://forum.mc-server.org/showthread.php?tid=409 for details.
+*/
+
+
+
+
+
+#pragma once
+
+#include "ChunkGenerator.h"
+#include "ChunkDesc.h"
+
+
+
+
+
+// fwd: Noise3DGenerator.h
+class cNoise3DComposable;
+
+// fwd: DistortedHeightmap.h
+class cDistortedHeightmap;
+
+
+
+
+
+/** The interface that a biome generator must implement
+A biome generator takes chunk coords on input and outputs an array of biome indices for that chunk on output.
+The output array is sequenced in the same way as the MapChunk packet's biome data.
+*/
+class cBiomeGen
+{
+public:
+ virtual ~cBiomeGen() {} // Force a virtual destructor in descendants
+
+ /// Generates biomes for the given chunk
+ virtual void GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) = 0;
+
+ /// Reads parameters from the ini file, prepares generator for use.
+ virtual void Initialize(cIniFile & a_IniFile) {}
+} ;
+
+
+
+
+
+/** The interface that a terrain height generator must implement
+A terrain height generator takes chunk coords on input and outputs an array of terrain heights for that chunk.
+The output array is sequenced in the same way as the BiomeGen's biome data.
+The generator may request biome information from the underlying BiomeGen, it may even request information for
+other chunks than the one it's currently generating (possibly neighbors - for averaging)
+*/
+class cTerrainHeightGen
+{
+public:
+ virtual ~cTerrainHeightGen() {} // Force a virtual destructor in descendants
+
+ /// Generates heightmap for the given chunk
+ virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) = 0;
+} ;
+
+
+
+
+
+/** The interface that a terrain composition generator must implement
+Terrain composition takes chunk coords on input and outputs the blockdata for that entire chunk, along with
+the list of entities. It is supposed to make use of the underlying TerrainHeightGen and BiomeGen for that purpose,
+but it may request information for other chunks than the one it's currently generating from them.
+*/
+class cTerrainCompositionGen
+{
+public:
+ virtual ~cTerrainCompositionGen() {} // Force a virtual destructor in descendants
+
+ virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) = 0;
+} ;
+
+
+
+
+
+/** The interface that a structure generator must implement
+Structures are generated after the terrain composition took place. It should modify the blocktype data to account
+for whatever structures the generator is generating.
+Note that ores are considered structures too, at least from the interface point of view.
+Also note that a worldgenerator may contain multiple structure generators, one for each type of structure
+*/
+class cStructureGen
+{
+public:
+ virtual ~cStructureGen() {} // Force a virtual destructor in descendants
+
+ virtual void GenStructures(cChunkDesc & a_ChunkDesc) = 0;
+} ;
+
+typedef std::list<cStructureGen *> cStructureGenList;
+
+
+
+
+
+/** The interface that a finisher must implement
+Finisher implements small additions after all structures have been generated.
+*/
+class cFinishGen
+{
+public:
+ virtual ~cFinishGen() {} // Force a virtual destructor in descendants
+
+ virtual void GenFinish(cChunkDesc & a_ChunkDesc) = 0;
+} ;
+
+typedef std::list<cFinishGen *> cFinishGenList;
+
+
+
+
+
+class cComposableGenerator :
+ public cChunkGenerator::cGenerator
+{
+ typedef cChunkGenerator::cGenerator super;
+
+public:
+ cComposableGenerator(cChunkGenerator & a_ChunkGenerator);
+ virtual ~cComposableGenerator();
+
+ virtual void Initialize(cWorld * a_World, cIniFile & a_IniFile) override;
+ virtual void GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override;
+ virtual void DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc) override;
+
+protected:
+ // The generation composition:
+ cBiomeGen * m_BiomeGen;
+ cTerrainHeightGen * m_HeightGen;
+ cTerrainCompositionGen * m_CompositionGen;
+ cStructureGenList m_StructureGens;
+ cFinishGenList m_FinishGens;
+
+ // Generators underlying the caches:
+ cBiomeGen * m_UnderlyingBiomeGen;
+ cTerrainHeightGen * m_UnderlyingHeightGen;
+ cTerrainCompositionGen * m_UnderlyingCompositionGen;
+
+
+ /// Reads the biome gen settings from the ini and initializes m_BiomeGen accordingly
+ void InitBiomeGen(cIniFile & a_IniFile);
+
+ /// Reads the HeightGen settings from the ini and initializes m_HeightGen accordingly
+ void InitHeightGen(cIniFile & a_IniFile);
+
+ /// Reads the CompositionGen settings from the ini and initializes m_CompositionGen accordingly
+ void InitCompositionGen(cIniFile & a_IniFile);
+
+ /// Reads the structures to generate from the ini and initializes m_StructureGens accordingly
+ void InitStructureGens(cIniFile & a_IniFile);
+
+ /// Reads the finishers from the ini and initializes m_FinishGens accordingly
+ void InitFinishGens(cIniFile & a_IniFile);
+} ;
+
+
+
+
diff --git a/source/Generating/DistortedHeightmap.cpp b/source/Generating/DistortedHeightmap.cpp
index 5efc27895..6ac4d61d5 100644
--- a/source/Generating/DistortedHeightmap.cpp
+++ b/source/Generating/DistortedHeightmap.cpp
@@ -1,419 +1,419 @@
-
-// DistortedHeightmap.cpp
-
-// Implements the cDistortedHeightmap class representing the height and composition generator capable of overhangs
-
-#include "Globals.h"
-
-#include "DistortedHeightmap.h"
-#include "../OSSupport/File.h"
-#include "../../iniFile/iniFile.h"
-#include "../LinearUpscale.h"
-
-
-
-
-
-/** This table assigns a relative maximum overhang size in each direction to biomes.
-Both numbers indicate a number which will multiply the noise value for each coord;
-this means that you can have different-sized overhangs in each direction.
-Usually you'd want to keep both numbers the same.
-The numbers are "relative", not absolute maximum; overhangs of a slightly larger size are possible
-due to the way that noise is calculated.
-*/
-const cDistortedHeightmap::sGenParam cDistortedHeightmap::m_GenParam[biNumBiomes] =
-{
- /* Biome | AmpX | AmpZ */
- /* biOcean */ { 1.5f, 1.5f},
- /* biPlains */ { 0.5f, 0.5f},
- /* biDesert */ { 0.5f, 0.5f},
- /* biExtremeHills */ {16.0f, 16.0f},
- /* biForest */ { 3.0f, 3.0f},
- /* biTaiga */ { 1.5f, 1.5f},
-
- /* biSwampland */ { 0.0f, 0.0f},
- /* biRiver */ { 0.0f, 0.0f},
- /* biNether */ { 0.0f, 0.0f}, // Unused, but must be here due to indexing
- /* biSky */ { 0.0f, 0.0f}, // Unused, but must be here due to indexing
- /* biFrozenOcean */ { 0.0f, 0.0f},
- /* biFrozenRiver */ { 0.0f, 0.0f},
- /* biIcePlains */ { 0.0f, 0.0f},
- /* biIceMountains */ { 8.0f, 8.0f},
- /* biMushroomIsland */ { 4.0f, 4.0f},
- /* biMushroomShore */ { 0.0f, 0.0f},
- /* biBeach */ { 0.0f, 0.0f},
- /* biDesertHills */ { 5.0f, 5.0f},
- /* biForestHills */ { 6.0f, 6.0f},
- /* biTaigaHills */ { 8.0f, 8.0f},
- /* biExtremeHillsEdge */ { 7.0f, 7.0f},
- /* biJungle */ { 0.0f, 0.0f},
- /* biJungleHills */ { 8.0f, 8.0f},
-} ;
-
-
-
-
-
-cDistortedHeightmap::cDistortedHeightmap(int a_Seed, cBiomeGen & a_BiomeGen) :
- m_NoiseDistortX(a_Seed + 1000),
- m_NoiseDistortZ(a_Seed + 2000),
- m_OceanFloorSelect(a_Seed + 3000),
- m_BiomeGen(a_BiomeGen),
- m_UnderlyingHeiGen(a_Seed, a_BiomeGen),
- m_HeightGen(&m_UnderlyingHeiGen, 64)
-{
- m_NoiseDistortX.AddOctave((NOISE_DATATYPE)1, (NOISE_DATATYPE)0.5);
- m_NoiseDistortX.AddOctave((NOISE_DATATYPE)0.5, (NOISE_DATATYPE)1);
- m_NoiseDistortX.AddOctave((NOISE_DATATYPE)0.25, (NOISE_DATATYPE)2);
-
- m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)1, (NOISE_DATATYPE)0.5);
- m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)0.5, (NOISE_DATATYPE)1);
- m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)0.25, (NOISE_DATATYPE)2);
-}
-
-
-
-
-
-void cDistortedHeightmap::Initialize(cIniFile & a_IniFile)
-{
- // Read the params from the INI file:
- m_SeaLevel = a_IniFile.GetValueSetI("Generator", "DistortedHeightmapSeaLevel", 62);
- m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyX", 10);
- m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyY", 10);
- m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyZ", 10);
-}
-
-
-
-
-
-void cDistortedHeightmap::PrepareState(int a_ChunkX, int a_ChunkZ)
-{
- if ((m_CurChunkX == a_ChunkX) && (m_CurChunkZ == a_ChunkZ))
- {
- return;
- }
- m_CurChunkX = a_ChunkX;
- m_CurChunkZ = a_ChunkZ;
-
-
- m_HeightGen.GenHeightMap(a_ChunkX, a_ChunkZ, m_CurChunkHeights);
- UpdateDistortAmps();
- GenerateHeightArray();
-}
-
-
-
-
-
-void cDistortedHeightmap::GenerateHeightArray(void)
-{
- // Generate distortion noise:
- NOISE_DATATYPE DistortNoiseX[DIM_X * DIM_Y * DIM_Z];
- NOISE_DATATYPE DistortNoiseZ[DIM_X * DIM_Y * DIM_Z];
- NOISE_DATATYPE Workspace[DIM_X * DIM_Y * DIM_Z];
- NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(m_CurChunkX * cChunkDef::Width)) / m_FrequencyX;
- NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((m_CurChunkX + 1) * cChunkDef::Width - 1)) / m_FrequencyX;
- NOISE_DATATYPE StartY = 0;
- NOISE_DATATYPE EndY = ((NOISE_DATATYPE)(257)) / m_FrequencyY;
- NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(m_CurChunkZ * cChunkDef::Width)) / m_FrequencyZ;
- NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((m_CurChunkZ + 1) * cChunkDef::Width - 1)) / m_FrequencyZ;
-
- m_NoiseDistortX.Generate3D(DistortNoiseX, DIM_X, DIM_Y, DIM_Z, StartX, EndX, StartY, EndY, StartZ, EndZ, Workspace);
- m_NoiseDistortZ.Generate3D(DistortNoiseZ, DIM_X, DIM_Y, DIM_Z, StartX, EndX, StartY, EndY, StartZ, EndZ, Workspace);
-
- // The distorted heightmap, before linear upscaling
- NOISE_DATATYPE DistHei[DIM_X * DIM_Y * DIM_Z];
-
- // Distort the heightmap using the distortion:
- for (int z = 0; z < DIM_Z; z++)
- {
- int AmpIdx = z * DIM_X;
- for (int y = 0; y < DIM_Y; y++)
- {
- int NoiseArrayIdx = z * DIM_X * DIM_Y + y * DIM_X;
- for (int x = 0; x < DIM_X; x++)
- {
- NOISE_DATATYPE DistX = DistortNoiseX[NoiseArrayIdx + x] * m_DistortAmpX[AmpIdx + x];
- NOISE_DATATYPE DistZ = DistortNoiseZ[NoiseArrayIdx + x] * m_DistortAmpZ[AmpIdx + x];
- DistX += (NOISE_DATATYPE)(m_CurChunkX * cChunkDef::Width + x * INTERPOL_X);
- DistZ += (NOISE_DATATYPE)(m_CurChunkZ * cChunkDef::Width + z * INTERPOL_Z);
- // Adding 0.5 helps alleviate the interpolation artifacts
- DistHei[NoiseArrayIdx + x] = (NOISE_DATATYPE)GetHeightmapAt(DistX, DistZ) + (NOISE_DATATYPE)0.5;
- }
- }
- }
-
- // Upscale the distorted heightmap into full dimensions:
- LinearUpscale3DArray(
- DistHei, DIM_X, DIM_Y, DIM_Z,
- m_DistortedHeightmap, INTERPOL_X, INTERPOL_Y, INTERPOL_Z
- );
-
- // DEBUG: Debug3DNoise(m_DistortedHeightmap, 17, 257, 17, Printf("DistortedHeightmap_%d_%d", m_CurChunkX, m_CurChunkZ));
-}
-
-
-
-
-
-void cDistortedHeightmap::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- PrepareState(a_ChunkX, a_ChunkZ);
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- int NoiseArrayIdx = x + 17 * 257 * z;
- cChunkDef::SetHeight(a_HeightMap, x, z, m_SeaLevel - 1);
- for (int y = cChunkDef::Height - 1; y > m_SeaLevel - 1; y--)
- {
- int HeightMapHeight = (int)m_DistortedHeightmap[NoiseArrayIdx + 17 * y];
- if (y < HeightMapHeight)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, y);
- break;
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
-
-void cDistortedHeightmap::ComposeTerrain(cChunkDesc & a_ChunkDesc)
-{
- // Frequencies for the ocean floor selecting noise:
- NOISE_DATATYPE FrequencyX = 3;
- NOISE_DATATYPE FrequencyZ = 3;
-
- // Prepare the internal state for generating this chunk:
- PrepareState(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ());
-
- // Compose:
- a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0);
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- int NoiseArrayIdx = x + 17 * 257 * z;
- int LastAir = a_ChunkDesc.GetHeight(x, z) + 1;
- bool HasHadWater = false;
- for (int y = LastAir - 1; y > 0; y--)
- {
- int HeightMapHeight = (int)m_DistortedHeightmap[NoiseArrayIdx + 17 * y];
-
- if (y >= HeightMapHeight)
- {
- // "air" part
- LastAir = y;
- if (y < m_SeaLevel)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER);
- HasHadWater = true;
- }
- continue;
- }
- // "ground" part:
- if (y < LastAir - 4)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STONE);
- continue;
- }
- if (HasHadWater)
- {
- // Decide between clay, sand and dirt
- NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(m_CurChunkX * cChunkDef::Width + x)) / FrequencyX;
- NOISE_DATATYPE NoiseY = ((NOISE_DATATYPE)(m_CurChunkZ * cChunkDef::Width + z)) / FrequencyZ;
- NOISE_DATATYPE Val = m_OceanFloorSelect.CubicNoise2D(NoiseX, NoiseY);
- if (Val < -0.95)
- {
- // Clay:
- switch (LastAir - y)
- {
- case 0:
- case 1:
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_CLAY);
- break;
- }
- case 2:
- case 3:
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND);
- break;
- }
- case 4:
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SANDSTONE);
- break;
- }
- } // switch (floor depth)
- }
- else if (Val < 0)
- {
- a_ChunkDesc.SetBlockType(x, y, z, (y < LastAir - 3) ? E_BLOCK_SANDSTONE : E_BLOCK_SAND);
- }
- else
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_DIRT);
- }
- }
- else
- {
- switch (a_ChunkDesc.GetBiome(x, z))
- {
- case biOcean:
- case biPlains:
- case biExtremeHills:
- case biForest:
- case biTaiga:
- case biSwampland:
- case biRiver:
- case biFrozenOcean:
- case biFrozenRiver:
- case biIcePlains:
- case biIceMountains:
- case biForestHills:
- case biTaigaHills:
- case biExtremeHillsEdge:
- case biJungle:
- case biJungleHills:
- {
- a_ChunkDesc.SetBlockType(x, y, z, (y == LastAir - 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT);
- break;
- }
- case biDesertHills:
- case biDesert:
- case biBeach:
- {
- a_ChunkDesc.SetBlockType(x, y, z, (y < LastAir - 3) ? E_BLOCK_SANDSTONE : E_BLOCK_SAND);
- break;
- }
- case biMushroomIsland:
- case biMushroomShore:
- {
- a_ChunkDesc.SetBlockType(x, y, z, (y == LastAir - 1) ? E_BLOCK_MYCELIUM : E_BLOCK_DIRT);
- break;
- }
- }
- }
- } // for y
- a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK);
- } // for x
- } // for z
-}
-
-
-
-
-
-int cDistortedHeightmap::GetHeightmapAt(NOISE_DATATYPE a_X, NOISE_DATATYPE a_Z)
-{
- int ChunkX = (int)floor(a_X / (NOISE_DATATYPE)16);
- int ChunkZ = (int)floor(a_Z / (NOISE_DATATYPE)16);
- int RelX = (int)(a_X - (NOISE_DATATYPE)ChunkX * cChunkDef::Width);
- int RelZ = (int)(a_Z - (NOISE_DATATYPE)ChunkZ * cChunkDef::Width);
-
- // If we're withing the same chunk, return the pre-cached heightmap:
- if ((ChunkX == m_CurChunkX) && (ChunkZ == m_CurChunkZ))
- {
- return cChunkDef::GetHeight(m_CurChunkHeights, RelX, RelZ);
- }
-
- // Ask the cache:
- HEIGHTTYPE res = 0;
- if (m_HeightGen.GetHeightAt(ChunkX, ChunkZ, RelX, RelZ, res))
- {
- // The height was in the cache
- return res;
- }
-
- // The height is not in the cache, generate full heightmap and get it there:
- cChunkDef::HeightMap Heightmap;
- m_HeightGen.GenHeightMap(ChunkX, ChunkZ, Heightmap);
- return cChunkDef::GetHeight(Heightmap, RelX, RelZ);
-}
-
-
-
-
-
-void cDistortedHeightmap::UpdateDistortAmps(void)
-{
- BiomeNeighbors Biomes;
- for (int z = -1; z <= 1; z++)
- {
- for (int x = -1; x <= 1; x++)
- {
- m_BiomeGen.GenBiomes(m_CurChunkX + x, m_CurChunkZ + z, Biomes[x + 1][z + 1]);
- } // for x
- } // for z
-
- for (int z = 0; z < DIM_Z; z++)
- {
- for (int x = 0; x < DIM_Z; x++)
- {
- GetDistortAmpsAt(Biomes, x * INTERPOL_X, z * INTERPOL_Z, m_DistortAmpX[x + DIM_X * z], m_DistortAmpZ[x + DIM_X * z]);
- }
- }
-}
-
-
-
-
-
-void cDistortedHeightmap::GetDistortAmpsAt(BiomeNeighbors & a_Neighbors, int a_RelX, int a_RelZ, NOISE_DATATYPE & a_DistortAmpX, NOISE_DATATYPE & a_DistortAmpZ)
-{
- // Sum up how many biomes of each type there are in the neighborhood:
- int BiomeCounts[biNumBiomes];
- memset(BiomeCounts, 0, sizeof(BiomeCounts));
- int Sum = 0;
- for (int z = -8; z <= 8; z++)
- {
- int FinalZ = a_RelZ + z + cChunkDef::Width;
- int IdxZ = FinalZ / cChunkDef::Width;
- int ModZ = FinalZ % cChunkDef::Width;
- int WeightZ = 9 - abs(z);
- for (int x = -8; x <= 8; x++)
- {
- int FinalX = a_RelX + x + cChunkDef::Width;
- int IdxX = FinalX / cChunkDef::Width;
- int ModX = FinalX % cChunkDef::Width;
- EMCSBiome Biome = cChunkDef::GetBiome(a_Neighbors[IdxX][IdxZ], ModX, ModZ);
- if ((Biome < 0) || (Biome >= ARRAYCOUNT(BiomeCounts)))
- {
- continue;
- }
- int WeightX = 9 - abs(x);
- BiomeCounts[Biome] += WeightX + WeightZ;
- Sum += WeightX + WeightZ;
- } // for x
- } // for z
-
- if (Sum <= 0)
- {
- // No known biome around? Weird. Return a bogus value:
- ASSERT(!"cHeiGenBiomal: Biome sum failed, no known biome around");
- a_DistortAmpX = 16;
- a_DistortAmpZ = 16;
- }
-
- // For each biome type that has a nonzero count, calc its amps and add it:
- NOISE_DATATYPE AmpX = 0;
- NOISE_DATATYPE AmpZ = 0;
- for (int i = 0; i < ARRAYCOUNT(BiomeCounts); i++)
- {
- AmpX += BiomeCounts[i] * m_GenParam[i].m_DistortAmpX;
- AmpZ += BiomeCounts[i] * m_GenParam[i].m_DistortAmpZ;
- }
- a_DistortAmpX = AmpX / Sum;
- a_DistortAmpZ = AmpZ / Sum;
-}
-
-
-
-
+
+// DistortedHeightmap.cpp
+
+// Implements the cDistortedHeightmap class representing the height and composition generator capable of overhangs
+
+#include "Globals.h"
+
+#include "DistortedHeightmap.h"
+#include "../OSSupport/File.h"
+#include "../../iniFile/iniFile.h"
+#include "../LinearUpscale.h"
+
+
+
+
+
+/** This table assigns a relative maximum overhang size in each direction to biomes.
+Both numbers indicate a number which will multiply the noise value for each coord;
+this means that you can have different-sized overhangs in each direction.
+Usually you'd want to keep both numbers the same.
+The numbers are "relative", not absolute maximum; overhangs of a slightly larger size are possible
+due to the way that noise is calculated.
+*/
+const cDistortedHeightmap::sGenParam cDistortedHeightmap::m_GenParam[biNumBiomes] =
+{
+ /* Biome | AmpX | AmpZ */
+ /* biOcean */ { 1.5f, 1.5f},
+ /* biPlains */ { 0.5f, 0.5f},
+ /* biDesert */ { 0.5f, 0.5f},
+ /* biExtremeHills */ {16.0f, 16.0f},
+ /* biForest */ { 3.0f, 3.0f},
+ /* biTaiga */ { 1.5f, 1.5f},
+
+ /* biSwampland */ { 0.0f, 0.0f},
+ /* biRiver */ { 0.0f, 0.0f},
+ /* biNether */ { 0.0f, 0.0f}, // Unused, but must be here due to indexing
+ /* biSky */ { 0.0f, 0.0f}, // Unused, but must be here due to indexing
+ /* biFrozenOcean */ { 0.0f, 0.0f},
+ /* biFrozenRiver */ { 0.0f, 0.0f},
+ /* biIcePlains */ { 0.0f, 0.0f},
+ /* biIceMountains */ { 8.0f, 8.0f},
+ /* biMushroomIsland */ { 4.0f, 4.0f},
+ /* biMushroomShore */ { 0.0f, 0.0f},
+ /* biBeach */ { 0.0f, 0.0f},
+ /* biDesertHills */ { 5.0f, 5.0f},
+ /* biForestHills */ { 6.0f, 6.0f},
+ /* biTaigaHills */ { 8.0f, 8.0f},
+ /* biExtremeHillsEdge */ { 7.0f, 7.0f},
+ /* biJungle */ { 0.0f, 0.0f},
+ /* biJungleHills */ { 8.0f, 8.0f},
+} ;
+
+
+
+
+
+cDistortedHeightmap::cDistortedHeightmap(int a_Seed, cBiomeGen & a_BiomeGen) :
+ m_NoiseDistortX(a_Seed + 1000),
+ m_NoiseDistortZ(a_Seed + 2000),
+ m_OceanFloorSelect(a_Seed + 3000),
+ m_BiomeGen(a_BiomeGen),
+ m_UnderlyingHeiGen(a_Seed, a_BiomeGen),
+ m_HeightGen(&m_UnderlyingHeiGen, 64)
+{
+ m_NoiseDistortX.AddOctave((NOISE_DATATYPE)1, (NOISE_DATATYPE)0.5);
+ m_NoiseDistortX.AddOctave((NOISE_DATATYPE)0.5, (NOISE_DATATYPE)1);
+ m_NoiseDistortX.AddOctave((NOISE_DATATYPE)0.25, (NOISE_DATATYPE)2);
+
+ m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)1, (NOISE_DATATYPE)0.5);
+ m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)0.5, (NOISE_DATATYPE)1);
+ m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)0.25, (NOISE_DATATYPE)2);
+}
+
+
+
+
+
+void cDistortedHeightmap::Initialize(cIniFile & a_IniFile)
+{
+ // Read the params from the INI file:
+ m_SeaLevel = a_IniFile.GetValueSetI("Generator", "DistortedHeightmapSeaLevel", 62);
+ m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyX", 10);
+ m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyY", 10);
+ m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyZ", 10);
+}
+
+
+
+
+
+void cDistortedHeightmap::PrepareState(int a_ChunkX, int a_ChunkZ)
+{
+ if ((m_CurChunkX == a_ChunkX) && (m_CurChunkZ == a_ChunkZ))
+ {
+ return;
+ }
+ m_CurChunkX = a_ChunkX;
+ m_CurChunkZ = a_ChunkZ;
+
+
+ m_HeightGen.GenHeightMap(a_ChunkX, a_ChunkZ, m_CurChunkHeights);
+ UpdateDistortAmps();
+ GenerateHeightArray();
+}
+
+
+
+
+
+void cDistortedHeightmap::GenerateHeightArray(void)
+{
+ // Generate distortion noise:
+ NOISE_DATATYPE DistortNoiseX[DIM_X * DIM_Y * DIM_Z];
+ NOISE_DATATYPE DistortNoiseZ[DIM_X * DIM_Y * DIM_Z];
+ NOISE_DATATYPE Workspace[DIM_X * DIM_Y * DIM_Z];
+ NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(m_CurChunkX * cChunkDef::Width)) / m_FrequencyX;
+ NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((m_CurChunkX + 1) * cChunkDef::Width - 1)) / m_FrequencyX;
+ NOISE_DATATYPE StartY = 0;
+ NOISE_DATATYPE EndY = ((NOISE_DATATYPE)(257)) / m_FrequencyY;
+ NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(m_CurChunkZ * cChunkDef::Width)) / m_FrequencyZ;
+ NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((m_CurChunkZ + 1) * cChunkDef::Width - 1)) / m_FrequencyZ;
+
+ m_NoiseDistortX.Generate3D(DistortNoiseX, DIM_X, DIM_Y, DIM_Z, StartX, EndX, StartY, EndY, StartZ, EndZ, Workspace);
+ m_NoiseDistortZ.Generate3D(DistortNoiseZ, DIM_X, DIM_Y, DIM_Z, StartX, EndX, StartY, EndY, StartZ, EndZ, Workspace);
+
+ // The distorted heightmap, before linear upscaling
+ NOISE_DATATYPE DistHei[DIM_X * DIM_Y * DIM_Z];
+
+ // Distort the heightmap using the distortion:
+ for (int z = 0; z < DIM_Z; z++)
+ {
+ int AmpIdx = z * DIM_X;
+ for (int y = 0; y < DIM_Y; y++)
+ {
+ int NoiseArrayIdx = z * DIM_X * DIM_Y + y * DIM_X;
+ for (int x = 0; x < DIM_X; x++)
+ {
+ NOISE_DATATYPE DistX = DistortNoiseX[NoiseArrayIdx + x] * m_DistortAmpX[AmpIdx + x];
+ NOISE_DATATYPE DistZ = DistortNoiseZ[NoiseArrayIdx + x] * m_DistortAmpZ[AmpIdx + x];
+ DistX += (NOISE_DATATYPE)(m_CurChunkX * cChunkDef::Width + x * INTERPOL_X);
+ DistZ += (NOISE_DATATYPE)(m_CurChunkZ * cChunkDef::Width + z * INTERPOL_Z);
+ // Adding 0.5 helps alleviate the interpolation artifacts
+ DistHei[NoiseArrayIdx + x] = (NOISE_DATATYPE)GetHeightmapAt(DistX, DistZ) + (NOISE_DATATYPE)0.5;
+ }
+ }
+ }
+
+ // Upscale the distorted heightmap into full dimensions:
+ LinearUpscale3DArray(
+ DistHei, DIM_X, DIM_Y, DIM_Z,
+ m_DistortedHeightmap, INTERPOL_X, INTERPOL_Y, INTERPOL_Z
+ );
+
+ // DEBUG: Debug3DNoise(m_DistortedHeightmap, 17, 257, 17, Printf("DistortedHeightmap_%d_%d", m_CurChunkX, m_CurChunkZ));
+}
+
+
+
+
+
+void cDistortedHeightmap::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
+{
+ PrepareState(a_ChunkX, a_ChunkZ);
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ int NoiseArrayIdx = x + 17 * 257 * z;
+ cChunkDef::SetHeight(a_HeightMap, x, z, m_SeaLevel - 1);
+ for (int y = cChunkDef::Height - 1; y > m_SeaLevel - 1; y--)
+ {
+ int HeightMapHeight = (int)m_DistortedHeightmap[NoiseArrayIdx + 17 * y];
+ if (y < HeightMapHeight)
+ {
+ cChunkDef::SetHeight(a_HeightMap, x, z, y);
+ break;
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
+
+void cDistortedHeightmap::ComposeTerrain(cChunkDesc & a_ChunkDesc)
+{
+ // Frequencies for the ocean floor selecting noise:
+ NOISE_DATATYPE FrequencyX = 3;
+ NOISE_DATATYPE FrequencyZ = 3;
+
+ // Prepare the internal state for generating this chunk:
+ PrepareState(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ());
+
+ // Compose:
+ a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0);
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ int NoiseArrayIdx = x + 17 * 257 * z;
+ int LastAir = a_ChunkDesc.GetHeight(x, z) + 1;
+ bool HasHadWater = false;
+ for (int y = LastAir - 1; y > 0; y--)
+ {
+ int HeightMapHeight = (int)m_DistortedHeightmap[NoiseArrayIdx + 17 * y];
+
+ if (y >= HeightMapHeight)
+ {
+ // "air" part
+ LastAir = y;
+ if (y < m_SeaLevel)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER);
+ HasHadWater = true;
+ }
+ continue;
+ }
+ // "ground" part:
+ if (y < LastAir - 4)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STONE);
+ continue;
+ }
+ if (HasHadWater)
+ {
+ // Decide between clay, sand and dirt
+ NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(m_CurChunkX * cChunkDef::Width + x)) / FrequencyX;
+ NOISE_DATATYPE NoiseY = ((NOISE_DATATYPE)(m_CurChunkZ * cChunkDef::Width + z)) / FrequencyZ;
+ NOISE_DATATYPE Val = m_OceanFloorSelect.CubicNoise2D(NoiseX, NoiseY);
+ if (Val < -0.95)
+ {
+ // Clay:
+ switch (LastAir - y)
+ {
+ case 0:
+ case 1:
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_CLAY);
+ break;
+ }
+ case 2:
+ case 3:
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND);
+ break;
+ }
+ case 4:
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SANDSTONE);
+ break;
+ }
+ } // switch (floor depth)
+ }
+ else if (Val < 0)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, (y < LastAir - 3) ? E_BLOCK_SANDSTONE : E_BLOCK_SAND);
+ }
+ else
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_DIRT);
+ }
+ }
+ else
+ {
+ switch (a_ChunkDesc.GetBiome(x, z))
+ {
+ case biOcean:
+ case biPlains:
+ case biExtremeHills:
+ case biForest:
+ case biTaiga:
+ case biSwampland:
+ case biRiver:
+ case biFrozenOcean:
+ case biFrozenRiver:
+ case biIcePlains:
+ case biIceMountains:
+ case biForestHills:
+ case biTaigaHills:
+ case biExtremeHillsEdge:
+ case biJungle:
+ case biJungleHills:
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, (y == LastAir - 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT);
+ break;
+ }
+ case biDesertHills:
+ case biDesert:
+ case biBeach:
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, (y < LastAir - 3) ? E_BLOCK_SANDSTONE : E_BLOCK_SAND);
+ break;
+ }
+ case biMushroomIsland:
+ case biMushroomShore:
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, (y == LastAir - 1) ? E_BLOCK_MYCELIUM : E_BLOCK_DIRT);
+ break;
+ }
+ }
+ }
+ } // for y
+ a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK);
+ } // for x
+ } // for z
+}
+
+
+
+
+
+int cDistortedHeightmap::GetHeightmapAt(NOISE_DATATYPE a_X, NOISE_DATATYPE a_Z)
+{
+ int ChunkX = (int)floor(a_X / (NOISE_DATATYPE)16);
+ int ChunkZ = (int)floor(a_Z / (NOISE_DATATYPE)16);
+ int RelX = (int)(a_X - (NOISE_DATATYPE)ChunkX * cChunkDef::Width);
+ int RelZ = (int)(a_Z - (NOISE_DATATYPE)ChunkZ * cChunkDef::Width);
+
+ // If we're withing the same chunk, return the pre-cached heightmap:
+ if ((ChunkX == m_CurChunkX) && (ChunkZ == m_CurChunkZ))
+ {
+ return cChunkDef::GetHeight(m_CurChunkHeights, RelX, RelZ);
+ }
+
+ // Ask the cache:
+ HEIGHTTYPE res = 0;
+ if (m_HeightGen.GetHeightAt(ChunkX, ChunkZ, RelX, RelZ, res))
+ {
+ // The height was in the cache
+ return res;
+ }
+
+ // The height is not in the cache, generate full heightmap and get it there:
+ cChunkDef::HeightMap Heightmap;
+ m_HeightGen.GenHeightMap(ChunkX, ChunkZ, Heightmap);
+ return cChunkDef::GetHeight(Heightmap, RelX, RelZ);
+}
+
+
+
+
+
+void cDistortedHeightmap::UpdateDistortAmps(void)
+{
+ BiomeNeighbors Biomes;
+ for (int z = -1; z <= 1; z++)
+ {
+ for (int x = -1; x <= 1; x++)
+ {
+ m_BiomeGen.GenBiomes(m_CurChunkX + x, m_CurChunkZ + z, Biomes[x + 1][z + 1]);
+ } // for x
+ } // for z
+
+ for (int z = 0; z < DIM_Z; z++)
+ {
+ for (int x = 0; x < DIM_Z; x++)
+ {
+ GetDistortAmpsAt(Biomes, x * INTERPOL_X, z * INTERPOL_Z, m_DistortAmpX[x + DIM_X * z], m_DistortAmpZ[x + DIM_X * z]);
+ }
+ }
+}
+
+
+
+
+
+void cDistortedHeightmap::GetDistortAmpsAt(BiomeNeighbors & a_Neighbors, int a_RelX, int a_RelZ, NOISE_DATATYPE & a_DistortAmpX, NOISE_DATATYPE & a_DistortAmpZ)
+{
+ // Sum up how many biomes of each type there are in the neighborhood:
+ int BiomeCounts[biNumBiomes];
+ memset(BiomeCounts, 0, sizeof(BiomeCounts));
+ int Sum = 0;
+ for (int z = -8; z <= 8; z++)
+ {
+ int FinalZ = a_RelZ + z + cChunkDef::Width;
+ int IdxZ = FinalZ / cChunkDef::Width;
+ int ModZ = FinalZ % cChunkDef::Width;
+ int WeightZ = 9 - abs(z);
+ for (int x = -8; x <= 8; x++)
+ {
+ int FinalX = a_RelX + x + cChunkDef::Width;
+ int IdxX = FinalX / cChunkDef::Width;
+ int ModX = FinalX % cChunkDef::Width;
+ EMCSBiome Biome = cChunkDef::GetBiome(a_Neighbors[IdxX][IdxZ], ModX, ModZ);
+ if ((Biome < 0) || (Biome >= ARRAYCOUNT(BiomeCounts)))
+ {
+ continue;
+ }
+ int WeightX = 9 - abs(x);
+ BiomeCounts[Biome] += WeightX + WeightZ;
+ Sum += WeightX + WeightZ;
+ } // for x
+ } // for z
+
+ if (Sum <= 0)
+ {
+ // No known biome around? Weird. Return a bogus value:
+ ASSERT(!"cHeiGenBiomal: Biome sum failed, no known biome around");
+ a_DistortAmpX = 16;
+ a_DistortAmpZ = 16;
+ }
+
+ // For each biome type that has a nonzero count, calc its amps and add it:
+ NOISE_DATATYPE AmpX = 0;
+ NOISE_DATATYPE AmpZ = 0;
+ for (int i = 0; i < ARRAYCOUNT(BiomeCounts); i++)
+ {
+ AmpX += BiomeCounts[i] * m_GenParam[i].m_DistortAmpX;
+ AmpZ += BiomeCounts[i] * m_GenParam[i].m_DistortAmpZ;
+ }
+ a_DistortAmpX = AmpX / Sum;
+ a_DistortAmpZ = AmpZ / Sum;
+}
+
+
+
+
diff --git a/source/Generating/DistortedHeightmap.h b/source/Generating/DistortedHeightmap.h
index 41a781b84..b2b235e61 100644
--- a/source/Generating/DistortedHeightmap.h
+++ b/source/Generating/DistortedHeightmap.h
@@ -1,102 +1,102 @@
-
-// DistortedHeightmap.h
-
-// Declares the cDistortedHeightmap class representing the height and composition generator capable of overhangs
-
-
-
-
-
-#pragma once
-
-#include "ComposableGenerator.h"
-#include "HeiGen.h"
-#include "../Noise.h"
-
-
-
-
-
-#define NOISE_SIZE_Y (257 + 32)
-
-
-
-
-
-class cDistortedHeightmap :
- public cTerrainHeightGen,
- public cTerrainCompositionGen
-{
-public:
- cDistortedHeightmap(int a_Seed, cBiomeGen & a_BiomeGen);
-
- void Initialize(cIniFile & a_IniFile);
-
-protected:
- typedef cChunkDef::BiomeMap BiomeNeighbors[3][3];
-
- // Linear upscaling step sizes, must be divisors of cChunkDef::Width and cChunkDef::Height, respectively:
- static const int INTERPOL_X = 8;
- static const int INTERPOL_Y = 4;
- static const int INTERPOL_Z = 8;
-
- // Linear upscaling buffer dimensions, calculated from the step sizes:
- static const int DIM_X = 1 + (17 / INTERPOL_X);
- static const int DIM_Y = 1 + (257 / INTERPOL_Y);
- static const int DIM_Z = 1 + (17 / INTERPOL_Z);
-
- cPerlinNoise m_NoiseDistortX;
- cPerlinNoise m_NoiseDistortZ;
- cNoise m_OceanFloorSelect; ///< Used for selecting between dirt and sand on the ocean floor
-
- int m_SeaLevel;
- NOISE_DATATYPE m_FrequencyX;
- NOISE_DATATYPE m_FrequencyY;
- NOISE_DATATYPE m_FrequencyZ;
-
- int m_CurChunkX;
- int m_CurChunkZ;
- NOISE_DATATYPE m_DistortedHeightmap[17 * 257 * 17];
-
- cBiomeGen & m_BiomeGen;
- cHeiGenBiomal m_UnderlyingHeiGen; // This generator provides us with base heightmap (before distortion)
- cHeiGenCache m_HeightGen; // Cache above m_UnderlyingHeiGen
-
- /// Heightmap for the current chunk, before distortion (from m_HeightGen). Used for optimization.
- cChunkDef::HeightMap m_CurChunkHeights;
-
- // Per-biome terrain generator parameters:
- struct sGenParam
- {
- NOISE_DATATYPE m_DistortAmpX;
- NOISE_DATATYPE m_DistortAmpZ;
- } ;
- static const sGenParam m_GenParam[biNumBiomes];
-
- // Distortion amplitudes for each direction, before linear upscaling
- NOISE_DATATYPE m_DistortAmpX[DIM_X * DIM_Z];
- NOISE_DATATYPE m_DistortAmpZ[DIM_X * DIM_Z];
-
-
- /// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise arrays, heightmap)
- void PrepareState(int a_ChunkX, int a_ChunkZ);
-
- /// Generates the m_DistortedHeightmap array for the current chunk
- void GenerateHeightArray(void);
-
- /// Calculates the heightmap value (before distortion) at the specified (floating-point) coords
- int GetHeightmapAt(NOISE_DATATYPE a_X, NOISE_DATATYPE a_Z);
-
- /// Updates m_DistortAmpX/Z[] based on m_CurChunkX and m_CurChunkZ
- void UpdateDistortAmps(void);
-
- /// Calculates the X and Z distortion amplitudes based on the neighbors' biomes
- void GetDistortAmpsAt(BiomeNeighbors & a_Neighbors, int a_RelX, int a_RelZ, NOISE_DATATYPE & a_DistortAmpX, NOISE_DATATYPE & a_DistortAmpZ);
-
-
- // cTerrainHeightGen overrides:
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-
- // cTerrainCompositionGen overrides:
- virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) override;
-} ;
+
+// DistortedHeightmap.h
+
+// Declares the cDistortedHeightmap class representing the height and composition generator capable of overhangs
+
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "HeiGen.h"
+#include "../Noise.h"
+
+
+
+
+
+#define NOISE_SIZE_Y (257 + 32)
+
+
+
+
+
+class cDistortedHeightmap :
+ public cTerrainHeightGen,
+ public cTerrainCompositionGen
+{
+public:
+ cDistortedHeightmap(int a_Seed, cBiomeGen & a_BiomeGen);
+
+ void Initialize(cIniFile & a_IniFile);
+
+protected:
+ typedef cChunkDef::BiomeMap BiomeNeighbors[3][3];
+
+ // Linear upscaling step sizes, must be divisors of cChunkDef::Width and cChunkDef::Height, respectively:
+ static const int INTERPOL_X = 8;
+ static const int INTERPOL_Y = 4;
+ static const int INTERPOL_Z = 8;
+
+ // Linear upscaling buffer dimensions, calculated from the step sizes:
+ static const int DIM_X = 1 + (17 / INTERPOL_X);
+ static const int DIM_Y = 1 + (257 / INTERPOL_Y);
+ static const int DIM_Z = 1 + (17 / INTERPOL_Z);
+
+ cPerlinNoise m_NoiseDistortX;
+ cPerlinNoise m_NoiseDistortZ;
+ cNoise m_OceanFloorSelect; ///< Used for selecting between dirt and sand on the ocean floor
+
+ int m_SeaLevel;
+ NOISE_DATATYPE m_FrequencyX;
+ NOISE_DATATYPE m_FrequencyY;
+ NOISE_DATATYPE m_FrequencyZ;
+
+ int m_CurChunkX;
+ int m_CurChunkZ;
+ NOISE_DATATYPE m_DistortedHeightmap[17 * 257 * 17];
+
+ cBiomeGen & m_BiomeGen;
+ cHeiGenBiomal m_UnderlyingHeiGen; // This generator provides us with base heightmap (before distortion)
+ cHeiGenCache m_HeightGen; // Cache above m_UnderlyingHeiGen
+
+ /// Heightmap for the current chunk, before distortion (from m_HeightGen). Used for optimization.
+ cChunkDef::HeightMap m_CurChunkHeights;
+
+ // Per-biome terrain generator parameters:
+ struct sGenParam
+ {
+ NOISE_DATATYPE m_DistortAmpX;
+ NOISE_DATATYPE m_DistortAmpZ;
+ } ;
+ static const sGenParam m_GenParam[biNumBiomes];
+
+ // Distortion amplitudes for each direction, before linear upscaling
+ NOISE_DATATYPE m_DistortAmpX[DIM_X * DIM_Z];
+ NOISE_DATATYPE m_DistortAmpZ[DIM_X * DIM_Z];
+
+
+ /// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise arrays, heightmap)
+ void PrepareState(int a_ChunkX, int a_ChunkZ);
+
+ /// Generates the m_DistortedHeightmap array for the current chunk
+ void GenerateHeightArray(void);
+
+ /// Calculates the heightmap value (before distortion) at the specified (floating-point) coords
+ int GetHeightmapAt(NOISE_DATATYPE a_X, NOISE_DATATYPE a_Z);
+
+ /// Updates m_DistortAmpX/Z[] based on m_CurChunkX and m_CurChunkZ
+ void UpdateDistortAmps(void);
+
+ /// Calculates the X and Z distortion amplitudes based on the neighbors' biomes
+ void GetDistortAmpsAt(BiomeNeighbors & a_Neighbors, int a_RelX, int a_RelZ, NOISE_DATATYPE & a_DistortAmpX, NOISE_DATATYPE & a_DistortAmpZ);
+
+
+ // cTerrainHeightGen overrides:
+ virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
+
+ // cTerrainCompositionGen overrides:
+ virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) override;
+} ;
diff --git a/source/Generating/EndGen.cpp b/source/Generating/EndGen.cpp
index 30fa457db..3eba5c47b 100644
--- a/source/Generating/EndGen.cpp
+++ b/source/Generating/EndGen.cpp
@@ -1,217 +1,217 @@
-
-// EndGen.cpp
-
-// Implements the cEndGen class representing the generator for the End, both as a HeightGen and CompositionGen
-
-#include "Globals.h"
-#include "EndGen.h"
-#include "../../iniFile/iniFile.h"
-#include "../LinearUpscale.h"
-
-
-
-
-
-enum
-{
- // Interpolation cell size:
- INTERPOL_X = 4,
- INTERPOL_Y = 4,
- INTERPOL_Z = 4,
-
- // Size of chunk data, downscaled before interpolation:
- DIM_X = 16 / INTERPOL_X + 1,
- DIM_Y = 256 / INTERPOL_Y + 1,
- DIM_Z = 16 / INTERPOL_Z + 1,
-} ;
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cEndGen:
-
-cEndGen::cEndGen(int a_Seed) :
- m_Seed(a_Seed),
- m_IslandSizeX(256),
- m_IslandSizeY(96),
- m_IslandSizeZ(256),
- m_FrequencyX(80),
- m_FrequencyY(80),
- m_FrequencyZ(80)
-{
- m_Perlin.AddOctave(1, 1);
- m_Perlin.AddOctave(2, 0.5);
- m_Perlin.AddOctave(4, 0.25);
-}
-
-
-
-
-
-void cEndGen::Initialize(cIniFile & a_IniFile)
-{
- m_IslandSizeX = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeX", m_IslandSizeX);
- m_IslandSizeY = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeY", m_IslandSizeY);
- m_IslandSizeZ = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeZ", m_IslandSizeZ);
-
- m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyX", m_FrequencyX);
- m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyY", m_FrequencyY);
- m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyZ", m_FrequencyZ);
-
- // Recalculate the min and max chunk coords of the island
- m_MaxChunkX = (m_IslandSizeX + cChunkDef::Width - 1) / cChunkDef::Width;
- m_MinChunkX = -m_MaxChunkX;
- m_MaxChunkZ = (m_IslandSizeZ + cChunkDef::Width - 1) / cChunkDef::Width;
- m_MinChunkZ = -m_MaxChunkZ;
-}
-
-
-
-
-
-/// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise array)
-void cEndGen::PrepareState(int a_ChunkX, int a_ChunkZ)
-{
- ASSERT(!IsChunkOutsideRange(a_ChunkX, a_ChunkZ)); // Should be filtered before calling this function
-
- if ((m_LastChunkX == a_ChunkX) && (m_LastChunkZ == a_ChunkZ))
- {
- return;
- }
-
- m_LastChunkX = a_ChunkX;
- m_LastChunkZ = a_ChunkZ;
-
- GenerateNoiseArray();
-}
-
-
-
-
-
-/// Generates the m_NoiseArray array for the current chunk
-void cEndGen::GenerateNoiseArray(void)
-{
- NOISE_DATATYPE NoiseData[DIM_X * DIM_Y * DIM_Z]; // [x + DIM_X * z + DIM_X * DIM_Z * y]
- NOISE_DATATYPE Workspace[DIM_X * DIM_Y * DIM_Z]; // [x + DIM_X * z + DIM_X * DIM_Z * y]
-
- // Generate the downscaled noise:
- NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(m_LastChunkX * cChunkDef::Width)) / m_FrequencyX;
- NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((m_LastChunkX + 1) * cChunkDef::Width)) / m_FrequencyX;
- NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(m_LastChunkZ * cChunkDef::Width)) / m_FrequencyZ;
- NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((m_LastChunkZ + 1) * cChunkDef::Width)) / m_FrequencyZ;
- NOISE_DATATYPE StartY = 0;
- NOISE_DATATYPE EndY = ((NOISE_DATATYPE)257) / m_FrequencyY;
- m_Perlin.Generate3D(NoiseData, DIM_X, DIM_Z, DIM_Y, StartX, EndX, StartZ, EndZ, StartY, EndY, Workspace);
-
- // Add distance:
- int idx = 0;
- for (int y = 0; y < DIM_Y; y++)
- {
- NOISE_DATATYPE ValY = (NOISE_DATATYPE)(2 * INTERPOL_Y * y - m_IslandSizeY) / m_IslandSizeY;
- ValY = ValY * ValY;
- for (int z = 0; z < DIM_Z; z++)
- {
- NOISE_DATATYPE ValZ = (NOISE_DATATYPE)(m_LastChunkZ * cChunkDef::Width + (z * cChunkDef::Width / (DIM_Z - 1))) / m_IslandSizeZ;
- ValZ = ValZ * ValZ;
- for (int x = 0; x < DIM_X; x++)
- {
- // NOISE_DATATYPE ValX = StartX + (EndX - StartX) * x / (DIM_X - 1);
- NOISE_DATATYPE ValX = (NOISE_DATATYPE)(m_LastChunkX * cChunkDef::Width + (x * cChunkDef::Width / (DIM_X - 1))) / m_IslandSizeX;
- ValX = ValX * ValX;
- NoiseData[idx++] += ValX + ValZ + ValY;
- } // for x
- } // for z
- } // for y
-
- // Upscale into real chunk size:
- LinearUpscale3DArray(NoiseData, DIM_X, DIM_Z, DIM_Y, m_NoiseArray, INTERPOL_X, INTERPOL_Z, INTERPOL_Y);
-}
-
-
-
-
-
-/// Returns true if the chunk is outside of the island's dimensions
-bool cEndGen::IsChunkOutsideRange(int a_ChunkX, int a_ChunkZ)
-{
- return (
- (a_ChunkX < m_MinChunkX) || (a_ChunkX > m_MaxChunkX) ||
- (a_ChunkZ < m_MinChunkZ) || (a_ChunkZ > m_MaxChunkZ)
- );
-}
-
-
-
-
-
-void cEndGen::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- if (IsChunkOutsideRange(a_ChunkX, a_ChunkZ))
- {
- for (int i = 0; i < ARRAYCOUNT(a_HeightMap); i++)
- {
- a_HeightMap[i] = 0;
- }
- return;
- }
-
- PrepareState(a_ChunkX, a_ChunkZ);
-
- int MaxY = std::min((int)(1.75 * m_IslandSizeY + 1), cChunkDef::Height - 1);
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, MaxY);
- for (int y = MaxY; y > 0; y--)
- {
- if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= 0)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, y);
- break;
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
-
-void cEndGen::ComposeTerrain(cChunkDesc & a_ChunkDesc)
-{
- if (IsChunkOutsideRange(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ()))
- {
- a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0);
- return;
- }
-
- PrepareState(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ());
-
- int MaxY = std::min((int)(1.75 * m_IslandSizeY + 1), cChunkDef::Height - 1);
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- for (int y = MaxY; y > 0; y--)
- {
- if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= 0)
- {
- a_ChunkDesc.SetBlockTypeMeta(x, y, z, E_BLOCK_END_STONE, 0);
- }
- else
- {
- a_ChunkDesc.SetBlockTypeMeta(x, y, z, E_BLOCK_AIR, 0);
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
+
+// EndGen.cpp
+
+// Implements the cEndGen class representing the generator for the End, both as a HeightGen and CompositionGen
+
+#include "Globals.h"
+#include "EndGen.h"
+#include "../../iniFile/iniFile.h"
+#include "../LinearUpscale.h"
+
+
+
+
+
+enum
+{
+ // Interpolation cell size:
+ INTERPOL_X = 4,
+ INTERPOL_Y = 4,
+ INTERPOL_Z = 4,
+
+ // Size of chunk data, downscaled before interpolation:
+ DIM_X = 16 / INTERPOL_X + 1,
+ DIM_Y = 256 / INTERPOL_Y + 1,
+ DIM_Z = 16 / INTERPOL_Z + 1,
+} ;
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cEndGen:
+
+cEndGen::cEndGen(int a_Seed) :
+ m_Seed(a_Seed),
+ m_IslandSizeX(256),
+ m_IslandSizeY(96),
+ m_IslandSizeZ(256),
+ m_FrequencyX(80),
+ m_FrequencyY(80),
+ m_FrequencyZ(80)
+{
+ m_Perlin.AddOctave(1, 1);
+ m_Perlin.AddOctave(2, 0.5);
+ m_Perlin.AddOctave(4, 0.25);
+}
+
+
+
+
+
+void cEndGen::Initialize(cIniFile & a_IniFile)
+{
+ m_IslandSizeX = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeX", m_IslandSizeX);
+ m_IslandSizeY = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeY", m_IslandSizeY);
+ m_IslandSizeZ = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeZ", m_IslandSizeZ);
+
+ m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyX", m_FrequencyX);
+ m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyY", m_FrequencyY);
+ m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyZ", m_FrequencyZ);
+
+ // Recalculate the min and max chunk coords of the island
+ m_MaxChunkX = (m_IslandSizeX + cChunkDef::Width - 1) / cChunkDef::Width;
+ m_MinChunkX = -m_MaxChunkX;
+ m_MaxChunkZ = (m_IslandSizeZ + cChunkDef::Width - 1) / cChunkDef::Width;
+ m_MinChunkZ = -m_MaxChunkZ;
+}
+
+
+
+
+
+/// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise array)
+void cEndGen::PrepareState(int a_ChunkX, int a_ChunkZ)
+{
+ ASSERT(!IsChunkOutsideRange(a_ChunkX, a_ChunkZ)); // Should be filtered before calling this function
+
+ if ((m_LastChunkX == a_ChunkX) && (m_LastChunkZ == a_ChunkZ))
+ {
+ return;
+ }
+
+ m_LastChunkX = a_ChunkX;
+ m_LastChunkZ = a_ChunkZ;
+
+ GenerateNoiseArray();
+}
+
+
+
+
+
+/// Generates the m_NoiseArray array for the current chunk
+void cEndGen::GenerateNoiseArray(void)
+{
+ NOISE_DATATYPE NoiseData[DIM_X * DIM_Y * DIM_Z]; // [x + DIM_X * z + DIM_X * DIM_Z * y]
+ NOISE_DATATYPE Workspace[DIM_X * DIM_Y * DIM_Z]; // [x + DIM_X * z + DIM_X * DIM_Z * y]
+
+ // Generate the downscaled noise:
+ NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(m_LastChunkX * cChunkDef::Width)) / m_FrequencyX;
+ NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((m_LastChunkX + 1) * cChunkDef::Width)) / m_FrequencyX;
+ NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(m_LastChunkZ * cChunkDef::Width)) / m_FrequencyZ;
+ NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((m_LastChunkZ + 1) * cChunkDef::Width)) / m_FrequencyZ;
+ NOISE_DATATYPE StartY = 0;
+ NOISE_DATATYPE EndY = ((NOISE_DATATYPE)257) / m_FrequencyY;
+ m_Perlin.Generate3D(NoiseData, DIM_X, DIM_Z, DIM_Y, StartX, EndX, StartZ, EndZ, StartY, EndY, Workspace);
+
+ // Add distance:
+ int idx = 0;
+ for (int y = 0; y < DIM_Y; y++)
+ {
+ NOISE_DATATYPE ValY = (NOISE_DATATYPE)(2 * INTERPOL_Y * y - m_IslandSizeY) / m_IslandSizeY;
+ ValY = ValY * ValY;
+ for (int z = 0; z < DIM_Z; z++)
+ {
+ NOISE_DATATYPE ValZ = (NOISE_DATATYPE)(m_LastChunkZ * cChunkDef::Width + (z * cChunkDef::Width / (DIM_Z - 1))) / m_IslandSizeZ;
+ ValZ = ValZ * ValZ;
+ for (int x = 0; x < DIM_X; x++)
+ {
+ // NOISE_DATATYPE ValX = StartX + (EndX - StartX) * x / (DIM_X - 1);
+ NOISE_DATATYPE ValX = (NOISE_DATATYPE)(m_LastChunkX * cChunkDef::Width + (x * cChunkDef::Width / (DIM_X - 1))) / m_IslandSizeX;
+ ValX = ValX * ValX;
+ NoiseData[idx++] += ValX + ValZ + ValY;
+ } // for x
+ } // for z
+ } // for y
+
+ // Upscale into real chunk size:
+ LinearUpscale3DArray(NoiseData, DIM_X, DIM_Z, DIM_Y, m_NoiseArray, INTERPOL_X, INTERPOL_Z, INTERPOL_Y);
+}
+
+
+
+
+
+/// Returns true if the chunk is outside of the island's dimensions
+bool cEndGen::IsChunkOutsideRange(int a_ChunkX, int a_ChunkZ)
+{
+ return (
+ (a_ChunkX < m_MinChunkX) || (a_ChunkX > m_MaxChunkX) ||
+ (a_ChunkZ < m_MinChunkZ) || (a_ChunkZ > m_MaxChunkZ)
+ );
+}
+
+
+
+
+
+void cEndGen::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
+{
+ if (IsChunkOutsideRange(a_ChunkX, a_ChunkZ))
+ {
+ for (int i = 0; i < ARRAYCOUNT(a_HeightMap); i++)
+ {
+ a_HeightMap[i] = 0;
+ }
+ return;
+ }
+
+ PrepareState(a_ChunkX, a_ChunkZ);
+
+ int MaxY = std::min((int)(1.75 * m_IslandSizeY + 1), cChunkDef::Height - 1);
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ cChunkDef::SetHeight(a_HeightMap, x, z, MaxY);
+ for (int y = MaxY; y > 0; y--)
+ {
+ if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= 0)
+ {
+ cChunkDef::SetHeight(a_HeightMap, x, z, y);
+ break;
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
+
+void cEndGen::ComposeTerrain(cChunkDesc & a_ChunkDesc)
+{
+ if (IsChunkOutsideRange(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ()))
+ {
+ a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0);
+ return;
+ }
+
+ PrepareState(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ());
+
+ int MaxY = std::min((int)(1.75 * m_IslandSizeY + 1), cChunkDef::Height - 1);
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ for (int y = MaxY; y > 0; y--)
+ {
+ if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= 0)
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, y, z, E_BLOCK_END_STONE, 0);
+ }
+ else
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, y, z, E_BLOCK_AIR, 0);
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
diff --git a/source/Generating/EndGen.h b/source/Generating/EndGen.h
index cd316ed67..4904a0e3d 100644
--- a/source/Generating/EndGen.h
+++ b/source/Generating/EndGen.h
@@ -1,69 +1,69 @@
-
-// EndGen.h
-
-// Declares the cEndGen class representing the generator for the End, both as a HeightGen and CompositionGen
-
-
-
-
-
-#pragma once
-
-#include "ComposableGenerator.h"
-#include "../Noise.h"
-
-
-
-
-
-class cEndGen :
- public cTerrainHeightGen,
- public cTerrainCompositionGen
-{
-public:
- cEndGen(int a_Seed);
-
- void Initialize(cIniFile & a_IniFile);
-
-protected:
-
- /// Seed for the noise
- int m_Seed;
-
- /// The Perlin noise used for generating
- cPerlinNoise m_Perlin;
-
- // XYZ size of the "island", in blocks:
- int m_IslandSizeX;
- int m_IslandSizeY;
- int m_IslandSizeZ;
-
- // XYZ Frequencies of the noise functions:
- NOISE_DATATYPE m_FrequencyX;
- NOISE_DATATYPE m_FrequencyY;
- NOISE_DATATYPE m_FrequencyZ;
-
- // Minimum and maximum chunk coords for chunks inside the island area. Chunks outside won't get calculated at all
- int m_MinChunkX, m_MaxChunkX;
- int m_MinChunkZ, m_MaxChunkZ;
-
- // Noise array for the last chunk (in the noise range)
- int m_LastChunkX;
- int m_LastChunkZ;
- NOISE_DATATYPE m_NoiseArray[17 * 17 * 257]; // x + 17 * z + 17 * 17 * y
-
- /// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise array)
- void PrepareState(int a_ChunkX, int a_ChunkZ);
-
- /// Generates the m_NoiseArray array for the current chunk
- void GenerateNoiseArray(void);
-
- /// Returns true if the chunk is outside of the island's dimensions
- bool IsChunkOutsideRange(int a_ChunkX, int a_ChunkZ);
-
- // cTerrainHeightGen overrides:
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-
- // cTerrainCompositionGen overrides:
- virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) override;
-} ;
+
+// EndGen.h
+
+// Declares the cEndGen class representing the generator for the End, both as a HeightGen and CompositionGen
+
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "../Noise.h"
+
+
+
+
+
+class cEndGen :
+ public cTerrainHeightGen,
+ public cTerrainCompositionGen
+{
+public:
+ cEndGen(int a_Seed);
+
+ void Initialize(cIniFile & a_IniFile);
+
+protected:
+
+ /// Seed for the noise
+ int m_Seed;
+
+ /// The Perlin noise used for generating
+ cPerlinNoise m_Perlin;
+
+ // XYZ size of the "island", in blocks:
+ int m_IslandSizeX;
+ int m_IslandSizeY;
+ int m_IslandSizeZ;
+
+ // XYZ Frequencies of the noise functions:
+ NOISE_DATATYPE m_FrequencyX;
+ NOISE_DATATYPE m_FrequencyY;
+ NOISE_DATATYPE m_FrequencyZ;
+
+ // Minimum and maximum chunk coords for chunks inside the island area. Chunks outside won't get calculated at all
+ int m_MinChunkX, m_MaxChunkX;
+ int m_MinChunkZ, m_MaxChunkZ;
+
+ // Noise array for the last chunk (in the noise range)
+ int m_LastChunkX;
+ int m_LastChunkZ;
+ NOISE_DATATYPE m_NoiseArray[17 * 17 * 257]; // x + 17 * z + 17 * 17 * y
+
+ /// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise array)
+ void PrepareState(int a_ChunkX, int a_ChunkZ);
+
+ /// Generates the m_NoiseArray array for the current chunk
+ void GenerateNoiseArray(void);
+
+ /// Returns true if the chunk is outside of the island's dimensions
+ bool IsChunkOutsideRange(int a_ChunkX, int a_ChunkZ);
+
+ // cTerrainHeightGen overrides:
+ virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
+
+ // cTerrainCompositionGen overrides:
+ virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) override;
+} ;
diff --git a/source/Generating/MineShafts.cpp b/source/Generating/MineShafts.cpp
index 0f7f78e19..3131b5429 100644
--- a/source/Generating/MineShafts.cpp
+++ b/source/Generating/MineShafts.cpp
@@ -1,1423 +1,1423 @@
-
-// MineShafts.cpp
-
-// Implements the cStructGenMineShafts class representing the structure generator for abandoned mineshafts
-
-/*
-Algorithm:
-The cStructGenMineShafts::cMineShaftSystem class is the main controller, which knows what mineshaft
-classes there are and their random weights. It gets asked to produce a new class everytime a connection is to be made.
-The cMineShaft class is a base class for each mineshaft structure.
-Each cMineShaft descendant knows how large it is, how to imprint itself into the chunk data and where to connect to
-other descendants. Its PivotPoint is always a walkable column. Its Direction determines in which direction the structure
-is facing.
-
-The generation starts with the central dirt room, from there corridors, crossings and staircases are added
-in a depth-first processing. Each of the descendants will branch randomly, if not beyond the allowed recursion level
-*/
-
-#include "Globals.h"
-#include "MineShafts.h"
-#include "../Cuboid.h"
-#include "../BlockEntities/ChestEntity.h"
-
-
-
-
-
-static const int NEIGHBORHOOD_SIZE = 3;
-
-
-
-
-
-class cMineShaft abstract
-{
-public:
- enum eKind
- {
- mskDirtRoom,
- mskCorridor,
- mskCrossing,
- mskStaircase,
- } ;
-
-
- enum eDirection
- {
- dirXP,
- dirZP,
- dirXM,
- dirZM,
- } ;
-
-
- cStructGenMineShafts::cMineShaftSystem & m_ParentSystem;
- eKind m_Kind;
- cCuboid m_BoundingBox;
-
-
- cMineShaft(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, eKind a_Kind) :
- m_ParentSystem(a_ParentSystem),
- m_Kind(a_Kind)
- {
- }
-
- cMineShaft(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, eKind a_Kind, const cCuboid & a_BoundingBox) :
- m_ParentSystem(a_ParentSystem),
- m_Kind(a_Kind),
- m_BoundingBox(a_BoundingBox)
- {
- }
-
- /// Returns true if this mineshaft intersects the specified cuboid
- bool DoesIntersect(const cCuboid & a_Other)
- {
- return m_BoundingBox.DoesIntersect(a_Other);
- }
-
- /** If recursion level is not too large, appends more branches to the parent system,
- using exit points specific to this class.
- */
- virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) = 0;
-
- /// Imprints this shape into the specified chunk's data
- virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) = 0;
-} ;
-
-typedef std::vector<cMineShaft *> cMineShafts;
-
-
-
-
-
-class cMineShaftDirtRoom :
- public cMineShaft
-{
- typedef cMineShaft super;
-
-public:
- cMineShaftDirtRoom(cStructGenMineShafts::cMineShaftSystem & a_Parent, cNoise & a_Noise);
-
- // cMineShaft overrides:
- virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
- virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
-
-class cMineShaftCorridor :
- public cMineShaft
-{
- typedef cMineShaft super;
-
-public:
- /** Creates a new Corridor attached to the specified pivot point and direction.
- Checks all ParentSystem's objects and disallows intersecting. Initializes the new object to fit.
- May return NULL if cannot fit.
- */
- static cMineShaft * CreateAndFit(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
- cNoise & a_Noise
- );
-
-protected:
- static const int MAX_SEGMENTS = 5;
-
- int m_NumSegments;
- eDirection m_Direction;
- bool m_HasFullBeam[MAX_SEGMENTS]; ///< If true, segment at that index has a full beam support (planks in the top center block)
- int m_ChestPosition; ///< If <0, no chest; otherwise an offset from m_BoundingBox's p1.x or p1.z, depenging on m_Direction
- int m_SpawnerPosition; ///< If <0, no spawner; otherwise an offset from m_BoundingBox's p1.x or p1.z, depenging on m_Direction
- bool m_HasTracks; ///< If true, random tracks will be placed on the floor
-
- cMineShaftCorridor(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- const cCuboid & a_BoundingBox, int a_NumSegments, eDirection a_Direction,
- cNoise & a_Noise
- );
-
- // cMineShaft overrides:
- virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
- virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
-
- /// Places a chest, if the corridor has one
- void PlaceChest(cChunkDesc & a_ChunkDesc);
-
- /// If this corridor has tracks, places them randomly
- void PlaceTracks(cChunkDesc & a_ChunkDesc);
-
- /// If this corridor has a spawner, places the spawner
- void PlaceSpawner(cChunkDesc & a_ChunkDesc);
-
- /// Randomly places torches around the central beam block
- void PlaceTorches(cChunkDesc & a_ChunkDesc);
-} ;
-
-
-
-
-
-class cMineShaftCrossing :
- public cMineShaft
-{
- typedef cMineShaft super;
-
-public:
- /** Creates a new Crossing attached to the specified pivot point and direction.
- Checks all ParentSystem's objects and disallows intersecting. Initializes the new object to fit.
- May return NULL if cannot fit.
- */
- static cMineShaft * CreateAndFit(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
- cNoise & a_Noise
- );
-
-protected:
- cMineShaftCrossing(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, const cCuboid & a_BoundingBox);
-
- // cMineShaft overrides:
- virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
- virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
-
-class cMineShaftStaircase :
- public cMineShaft
-{
- typedef cMineShaft super;
-
-public:
- enum eSlope
- {
- sUp,
- sDown,
- } ;
-
- /** Creates a new Staircase attached to the specified pivot point and direction.
- Checks all ParentSystem's objects and disallows intersecting. Initializes the new object to fit.
- May return NULL if cannot fit.
- */
- static cMineShaft * CreateAndFit(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
- cNoise & a_Noise
- );
-
-protected:
- eDirection m_Direction;
- eSlope m_Slope;
-
-
- cMineShaftStaircase(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- const cCuboid & a_BoundingBox,
- eDirection a_Direction,
- eSlope a_Slope
- );
-
- // cMineShaft overrides:
- virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
- virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
-
-class cStructGenMineShafts::cMineShaftSystem
-{
-public:
- int m_BlockX, m_BlockZ; ///< The pivot point on which the system is generated
- int m_GridSize; ///< Maximum offset of the dirtroom from grid center, * 2, in each direction
- int m_MaxRecursion; ///< Maximum recursion level (initialized from cStructGenMineShafts::m_MaxRecursion)
- int m_ProbLevelCorridor; ///< Probability level of a branch object being the corridor
- int m_ProbLevelCrossing; ///< Probability level of a branch object being the crossing, minus Corridor
- int m_ProbLevelStaircase; ///< Probability level of a branch object being the staircase, minus Crossing
- int m_ChanceChest; ///< Chance [0 .. 250] that a corridor has a chest in it
- int m_ChanceSpawner; ///< Chance [0 .. 250] that a corridor has a spawner in it
- int m_ChanceTorch; ///< Chance [0 .. 10k] for a torch appearing attached to a corridor's beam
- cMineShafts m_MineShafts; ///< List of cMineShaft descendants that comprise this system
- cCuboid m_BoundingBox; ///< Bounding box into which all of the components need to fit
-
- /// Creates and generates the entire system
- cMineShaftSystem(
- int a_BlockX, int a_BlockZ, int a_GridSize, int a_MaxSystemSize, cNoise & a_Noise,
- int a_ProbLevelCorridor, int a_ProbLevelCrossing, int a_ProbLevelStaircase
- );
-
- ~cMineShaftSystem();
-
- /// Carves the system into the chunk data
- void ProcessChunk(cChunkDesc & a_Chunk);
-
- /** Creates new cMineShaft descendant connected at the specified point, heading the specified direction,
- if it fits, appends it to the list and calls its AppendBranches()
- */
- void AppendBranch(
- int a_BlockX, int a_BlockY, int a_BlockZ,
- cMineShaft::eDirection a_Direction, cNoise & a_Noise,
- int a_RecursionLevel
- );
-
- /// Returns true if none of the objects in m_MineShafts intersect with the specified bounding box and the bounding box is valid
- bool CanAppend(const cCuboid & a_BoundingBox);
-} ;
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenMineShafts::cMineShaftSystem:
-
-cStructGenMineShafts::cMineShaftSystem::cMineShaftSystem(
- int a_BlockX, int a_BlockZ, int a_GridSize, int a_MaxSystemSize, cNoise & a_Noise,
- int a_ProbLevelCorridor, int a_ProbLevelCrossing, int a_ProbLevelStaircase
-) :
- m_BlockX(a_BlockX),
- m_BlockZ(a_BlockZ),
- m_GridSize(a_GridSize),
- m_MaxRecursion(8), // TODO: settable
- m_ProbLevelCorridor(a_ProbLevelCorridor),
- m_ProbLevelCrossing(a_ProbLevelCrossing),
- m_ProbLevelStaircase(a_ProbLevelStaircase + 1),
- m_ChanceChest(12), // TODO: settable
- m_ChanceSpawner(12), // TODO: settable
- m_ChanceTorch(1000) // TODO: settable
-{
- m_MineShafts.reserve(100);
-
- cMineShaft * Start = new cMineShaftDirtRoom(*this, a_Noise);
- m_MineShafts.push_back(Start);
-
- m_BoundingBox.Assign(
- Start->m_BoundingBox.p1.x - a_MaxSystemSize / 2, 2, Start->m_BoundingBox.p1.z - a_MaxSystemSize / 2,
- Start->m_BoundingBox.p2.x + a_MaxSystemSize / 2, 50, Start->m_BoundingBox.p2.z + a_MaxSystemSize / 2
- );
-
- Start->AppendBranches(0, a_Noise);
-
- for (cMineShafts::const_iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
- {
- ASSERT((*itr)->m_BoundingBox.IsSorted());
- } // for itr - m_MineShafts[]
-}
-
-
-
-
-
-cStructGenMineShafts::cMineShaftSystem::~cMineShaftSystem()
-{
- for (cMineShafts::iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
- {
- delete *itr;
- } // for itr - m_MineShafts[]
- m_MineShafts.clear();
-}
-
-
-
-
-
-void cStructGenMineShafts::cMineShaftSystem::ProcessChunk(cChunkDesc & a_Chunk)
-{
- for (cMineShafts::const_iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
- {
- (*itr)->ProcessChunk(a_Chunk);
- } // for itr - m_MineShafts[]
-}
-
-
-
-
-
-void cStructGenMineShafts::cMineShaftSystem::AppendBranch(
- int a_PivotX, int a_PivotY, int a_PivotZ,
- cMineShaft::eDirection a_Direction, cNoise & a_Noise,
- int a_RecursionLevel
-)
-{
- if (a_RecursionLevel > m_MaxRecursion)
- {
- return;
- }
-
- cMineShaft * Next = NULL;
- int rnd = (a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_RecursionLevel * 16, a_PivotZ) / 13) % m_ProbLevelStaircase;
- if (rnd < m_ProbLevelCorridor)
- {
- Next = cMineShaftCorridor::CreateAndFit(*this, a_PivotX, a_PivotY, a_PivotZ, a_Direction, a_Noise);
- }
- else if (rnd < m_ProbLevelCrossing)
- {
- Next = cMineShaftCrossing::CreateAndFit(*this, a_PivotX, a_PivotY, a_PivotZ, a_Direction, a_Noise);
- }
- else
- {
- Next = cMineShaftStaircase::CreateAndFit(*this, a_PivotX, a_PivotY, a_PivotZ, a_Direction, a_Noise);
- }
- if (Next == NULL)
- {
- return;
- }
- m_MineShafts.push_back(Next);
- Next->AppendBranches(a_RecursionLevel + 1, a_Noise);
-}
-
-
-
-
-
-bool cStructGenMineShafts::cMineShaftSystem::CanAppend(const cCuboid & a_BoundingBox)
-{
- if (!a_BoundingBox.IsCompletelyInside(m_BoundingBox))
- {
- // Too far away, or too low / too high
- return false;
- }
-
- // Check intersections:
- for (cMineShafts::const_iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
- {
- if ((*itr)->DoesIntersect(a_BoundingBox))
- {
- return false;
- }
- } // for itr - m_MineShafts[]
- return true;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cMineShaftDirtRoom:
-
-cMineShaftDirtRoom::cMineShaftDirtRoom(cStructGenMineShafts::cMineShaftSystem & a_Parent, cNoise & a_Noise) :
- super(a_Parent, mskDirtRoom)
-{
- // Make the room of random size, min 10 x 4 x 10; max 18 x 12 x 18:
- int rnd = a_Noise.IntNoise3DInt(a_Parent.m_BlockX, 0, a_Parent.m_BlockZ) / 7;
- int OfsX = (rnd % a_Parent.m_GridSize) - a_Parent.m_GridSize / 2;
- rnd >>= 12;
- int OfsZ = (rnd % a_Parent.m_GridSize) - a_Parent.m_GridSize / 2;
- rnd = a_Noise.IntNoise3DInt(a_Parent.m_BlockX, 1000, a_Parent.m_BlockZ) / 11;
- m_BoundingBox.p1.x = a_Parent.m_BlockX + OfsX;
- m_BoundingBox.p2.x = m_BoundingBox.p1.x + 10 + (rnd % 8);
- rnd >>= 4;
- m_BoundingBox.p1.z = a_Parent.m_BlockZ + OfsZ;
- m_BoundingBox.p2.z = m_BoundingBox.p1.z + 10 + (rnd % 8);
- rnd >>= 4;
- m_BoundingBox.p1.y = 20;
- m_BoundingBox.p2.y = 24 + rnd % 8;
-}
-
-
-
-
-
-void cMineShaftDirtRoom::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
-{
- int Height = m_BoundingBox.DifY() - 3;
- for (int x = m_BoundingBox.p1.x + 1; x < m_BoundingBox.p2.x; x += 4)
- {
- int rnd = a_Noise.IntNoise3DInt(x, a_RecursionLevel, m_BoundingBox.p1.z) / 7;
- m_ParentSystem.AppendBranch(x, m_BoundingBox.p1.y + (rnd % Height), m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
- rnd >>= 4;
- m_ParentSystem.AppendBranch(x, m_BoundingBox.p1.y + (rnd % Height), m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
- }
-
- for (int z = m_BoundingBox.p1.z + 1; z < m_BoundingBox.p2.z; z += 4)
- {
- int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x, a_RecursionLevel, z) / 13;
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, m_BoundingBox.p1.y + (rnd % Height), z, dirXM, a_Noise, a_RecursionLevel);
- rnd >>= 4;
- m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, m_BoundingBox.p1.y + (rnd % Height), z, dirXP, a_Noise, a_RecursionLevel);
- }
-}
-
-
-
-
-
-void cMineShaftDirtRoom::ProcessChunk(cChunkDesc & a_ChunkDesc)
-{
- int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- if (
- (m_BoundingBox.p1.x > BlockX + cChunkDef::Width) ||
- (m_BoundingBox.p1.z > BlockZ + cChunkDef::Width) ||
- (m_BoundingBox.p2.x < BlockX) ||
- (m_BoundingBox.p2.z < BlockZ)
- )
- {
- // Early bailout - cannot intersect this chunk
- return;
- }
-
- // Chunk-relative coords of the boundaries:
- int MinX = std::max(BlockX, m_BoundingBox.p1.x) - BlockX;
- int MaxX = std::min(BlockX + cChunkDef::Width, m_BoundingBox.p2.x + 1) - BlockX;
- int MinZ = std::max(BlockZ, m_BoundingBox.p1.z) - BlockZ;
- int MaxZ = std::min(BlockZ + cChunkDef::Width, m_BoundingBox.p2.z + 1) - BlockZ;
-
- // Carve the room out:
- for (int z = MinZ; z < MaxZ; z++)
- {
- for (int x = MinX; x < MaxX; x++)
- {
- for (int y = m_BoundingBox.p1.y + 1; y < m_BoundingBox.p2.y; y++)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
- }
- if (a_ChunkDesc.GetBlockType(x, m_BoundingBox.p1.y, z) != E_BLOCK_AIR)
- {
- a_ChunkDesc.SetBlockType(x, m_BoundingBox.p1.y, z, E_BLOCK_DIRT);
- }
- } // for x
- } // for z
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cMineShaftCorridor:
-
-cMineShaftCorridor::cMineShaftCorridor(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- const cCuboid & a_BoundingBox, int a_NumSegments, eDirection a_Direction,
- cNoise & a_Noise
-) :
- super(a_ParentSystem, mskCorridor, a_BoundingBox),
- m_NumSegments(a_NumSegments),
- m_Direction(a_Direction),
- m_ChestPosition(-1),
- m_SpawnerPosition(-1)
-{
- int rnd = a_Noise.IntNoise3DInt(a_BoundingBox.p1.x, a_BoundingBox.p1.y, a_BoundingBox.p1.z) / 7;
- for (int i = 0; i < a_NumSegments; i++)
- {
- m_HasFullBeam[i] = (rnd % 4) < 3; // 75 % chance of full beam
- rnd >>= 2;
- }
- m_HasTracks = ((rnd % 4) < 2); // 50 % chance of tracks
-
- rnd = a_Noise.IntNoise3DInt(a_BoundingBox.p1.z, a_BoundingBox.p1.x, a_BoundingBox.p1.y) / 7;
- int ChestCheck = rnd % 250;
- rnd >>= 8;
- int SpawnerCheck = rnd % 250;
- rnd >>= 8;
- if (ChestCheck < a_ParentSystem.m_ChanceChest)
- {
- m_ChestPosition = rnd % (a_NumSegments * 5);
- }
- if ((a_NumSegments < 4) && (SpawnerCheck < a_ParentSystem.m_ChanceSpawner))
- {
- m_SpawnerPosition = rnd % (a_NumSegments * 5);
- }
-}
-
-
-
-
-
-cMineShaft * cMineShaftCorridor::CreateAndFit(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
- cNoise & a_Noise
-)
-{
- cCuboid BoundingBox(a_PivotX, a_PivotY - 1, a_PivotZ);
- BoundingBox.p2.y += 3;
- int rnd = a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_ParentSystem.m_MineShafts.size(), a_PivotZ) / 7;
- int NumSegments = 2 + (rnd) % (MAX_SEGMENTS - 1); // 2 .. MAX_SEGMENTS
- switch (a_Direction)
- {
- case dirXP: BoundingBox.p2.x += NumSegments * 5 - 1; BoundingBox.p1.z -= 1; BoundingBox.p2.z += 1; break;
- case dirXM: BoundingBox.p1.x -= NumSegments * 5 - 1; BoundingBox.p1.z -= 1; BoundingBox.p2.z += 1; break;
- case dirZP: BoundingBox.p2.z += NumSegments * 5 - 1; BoundingBox.p1.x -= 1; BoundingBox.p2.x += 1; break;
- case dirZM: BoundingBox.p1.z -= NumSegments * 5 - 1; BoundingBox.p1.x -= 1; BoundingBox.p2.x += 1; break;
- }
- if (!a_ParentSystem.CanAppend(BoundingBox))
- {
- return NULL;
- }
- return new cMineShaftCorridor(a_ParentSystem, BoundingBox, NumSegments, a_Direction, a_Noise);
-}
-
-
-
-
-
-void cMineShaftCorridor::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
-{
- int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 7;
- // Prefer the same height, but allow for up to one block height displacement:
- int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
- switch (m_Direction)
- {
- case dirXM:
- {
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + 1, dirXM, a_Noise, a_RecursionLevel);
- for (int i = m_NumSegments; i >= 0; i--)
- {
- int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
- int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
- rnd >>= 6;
- int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
- }
- break;
- }
-
- case dirXP:
- {
- m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + 1, dirXP, a_Noise, a_RecursionLevel);
- for (int i = m_NumSegments; i >= 0; i--)
- {
- int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
- int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
- rnd >>= 6;
- int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
- }
- break;
- }
-
- case dirZM:
- {
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
- for (int i = m_NumSegments; i >= 0; i--)
- {
- int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
- int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
- rnd >>= 6;
- int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + Ofs, dirXM, a_Noise, a_RecursionLevel);
- m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + Ofs, dirXP, a_Noise, a_RecursionLevel);
- }
- break;
- }
-
- case dirZP:
- {
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
- for (int i = m_NumSegments; i >= 0; i--)
- {
- int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
- int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
- rnd >>= 6;
- int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + Ofs, dirXM, a_Noise, a_RecursionLevel);
- m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + Ofs, dirXP, a_Noise, a_RecursionLevel);
- }
- break;
- }
- } // switch (m_Direction)
-}
-
-
-
-
-
-void cMineShaftCorridor::ProcessChunk(cChunkDesc & a_ChunkDesc)
-{
- int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- cCuboid RelBoundingBox(m_BoundingBox);
- RelBoundingBox.Move(-BlockX, 0, -BlockZ);
- RelBoundingBox.p1.y += 1;
- RelBoundingBox.p2.y -= 1;
- cCuboid Top(RelBoundingBox);
- Top.p2.y += 1;
- Top.p1.y = Top.p2.y;
- a_ChunkDesc.FillRelCuboid(RelBoundingBox, E_BLOCK_AIR, 0);
- a_ChunkDesc.RandomFillRelCuboid(Top, E_BLOCK_AIR, 0, BlockX ^ BlockZ + BlockX, 8000);
- if (m_SpawnerPosition >= 0)
- {
- // Cobwebs around the spider spawner
- a_ChunkDesc.RandomFillRelCuboid(RelBoundingBox, E_BLOCK_COBWEB, 0, BlockX ^ BlockZ + BlockZ, 8000);
- a_ChunkDesc.RandomFillRelCuboid(Top, E_BLOCK_COBWEB, 0, BlockX ^ BlockZ + BlockX, 5000);
- }
- a_ChunkDesc.RandomFillRelCuboid(Top, E_BLOCK_COBWEB, 0, BlockX ^ BlockZ + BlockX + 10, 500);
- RelBoundingBox.p1.y = m_BoundingBox.p1.y;
- RelBoundingBox.p2.y = m_BoundingBox.p1.y;
- a_ChunkDesc.FloorRelCuboid(RelBoundingBox, E_BLOCK_PLANKS, 0);
- switch (m_Direction)
- {
- case dirXM:
- case dirXP:
- {
- int y1 = m_BoundingBox.p1.y + 1;
- int y2 = m_BoundingBox.p1.y + 2;
- int y3 = m_BoundingBox.p1.y + 3;
- int z1 = m_BoundingBox.p1.z - BlockZ;
- int z2 = m_BoundingBox.p2.z - BlockZ;
- for (int i = 0; i < m_NumSegments; i++)
- {
- int x = m_BoundingBox.p1.x + i * 5 + 2 - BlockX;
- if ((x < 0) || (x >= cChunkDef::Width))
- {
- continue;
- }
- if ((z1 >= 0) && (z1 < cChunkDef::Width))
- {
- a_ChunkDesc.SetBlockTypeMeta(x, y1, z1, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x, y2, z1, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x, y3, z1, E_BLOCK_PLANKS, 0);
- }
- if ((z2 >= 0) && (z2 < cChunkDef::Width))
- {
- a_ChunkDesc.SetBlockTypeMeta(x, y1, z2, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x, y2, z2, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x, y3, z2, E_BLOCK_PLANKS, 0);
- }
- if ((z1 >= -1) && (z1 < cChunkDef::Width - 1) && m_HasFullBeam[i])
- {
- a_ChunkDesc.SetBlockTypeMeta(x, y3, z1 + 1, E_BLOCK_PLANKS, 0);
- }
- } // for i - NumSegments
- break;
- }
-
- case dirZM:
- case dirZP:
- {
- int y1 = m_BoundingBox.p1.y + 1;
- int y2 = m_BoundingBox.p1.y + 2;
- int y3 = m_BoundingBox.p1.y + 3;
- int x1 = m_BoundingBox.p1.x - BlockX;
- int x2 = m_BoundingBox.p2.x - BlockX;
- for (int i = 0; i < m_NumSegments; i++)
- {
- int z = m_BoundingBox.p1.z + i * 5 + 2 - BlockZ;
- if ((z < 0) || (z >= cChunkDef::Width))
- {
- continue;
- }
- if ((x1 >= 0) && (x1 < cChunkDef::Width))
- {
- a_ChunkDesc.SetBlockTypeMeta(x1, y1, z, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x1, y2, z, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x1, y3, z, E_BLOCK_PLANKS, 0);
- }
- if ((x2 >= 0) && (x2 < cChunkDef::Width))
- {
- a_ChunkDesc.SetBlockTypeMeta(x2, y1, z, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x2, y2, z, E_BLOCK_FENCE, 0);
- a_ChunkDesc.SetBlockTypeMeta(x2, y3, z, E_BLOCK_PLANKS, 0);
- }
- if ((x1 >= -1) && (x1 < cChunkDef::Width - 1) && m_HasFullBeam[i])
- {
- a_ChunkDesc.SetBlockTypeMeta(x1 + 1, y3, z, E_BLOCK_PLANKS, 0);
- }
- } // for i - NumSegments
- break;
- } // case dirZ?
- } // for i
-
- PlaceChest(a_ChunkDesc);
- PlaceTracks(a_ChunkDesc);
- PlaceSpawner(a_ChunkDesc); // (must be after Tracks!)
- PlaceTorches(a_ChunkDesc);
-}
-
-
-
-
-
-void cMineShaftCorridor::PlaceChest(cChunkDesc & a_ChunkDesc)
-{
- static const cLootProbab LootProbab[] =
- {
- // Item, MinAmount, MaxAmount, Weight
- { cItem(E_ITEM_IRON), 1, 5, 10 },
- { cItem(E_ITEM_GOLD), 1, 3, 5 },
- { cItem(E_ITEM_REDSTONE_DUST), 4, 9, 5 },
- { cItem(E_ITEM_DIAMOND), 1, 2, 3 },
- { cItem(E_ITEM_DYE, 1, 4), 4, 9, 5 }, // lapis lazuli dye
- { cItem(E_ITEM_COAL), 3, 8, 10 },
- { cItem(E_ITEM_BREAD), 1, 3, 15 },
- { cItem(E_ITEM_IRON_PICKAXE), 1, 1, 1 },
- { cItem(E_BLOCK_MINECART_TRACKS), 4, 8, 1 },
- { cItem(E_ITEM_MELON_SEEDS), 2, 4, 10 },
- { cItem(E_ITEM_PUMPKIN_SEEDS), 2, 4, 10 },
- } ;
-
- if (m_ChestPosition < 0)
- {
- return;
- }
-
- int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- int x, z;
- NIBBLETYPE Meta = 0;
- switch (m_Direction)
- {
- case dirXM:
- case dirXP:
- {
- x = m_BoundingBox.p1.x + m_ChestPosition - BlockX;
- z = m_BoundingBox.p1.z - BlockZ;
- Meta = E_META_CHEST_FACING_ZP;
- break;
- }
-
- case dirZM:
- case dirZP:
- {
- x = m_BoundingBox.p1.x - BlockX;
- z = m_BoundingBox.p1.z + m_ChestPosition - BlockZ;
- Meta = E_META_CHEST_FACING_XP;
- break;
- }
- } // switch (Dir)
-
- if (
- (x >= 0) && (x < cChunkDef::Width) &&
- (z >= 0) && (z < cChunkDef::Width)
- )
- {
- a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p1.y + 1, z, E_BLOCK_CHEST, Meta);
- cChestEntity * ChestEntity = new cChestEntity(BlockX + x, m_BoundingBox.p1.y + 1, BlockZ + z);
- cNoise Noise(a_ChunkDesc.GetChunkX() ^ a_ChunkDesc.GetChunkZ());
- int NumSlots = 3 + ((Noise.IntNoise3DInt(x, m_BoundingBox.p1.y, z) / 11) % 4);
- int Seed = Noise.IntNoise2DInt(x, z);
- ChestEntity->GetContents().GenerateRandomLootWithBooks(LootProbab, ARRAYCOUNT(LootProbab), NumSlots, Seed);
- a_ChunkDesc.AddBlockEntity(ChestEntity);
- }
-}
-
-
-
-
-
-void cMineShaftCorridor::PlaceTracks(cChunkDesc & a_ChunkDesc)
-{
- if (!m_HasTracks)
- {
- return;
- }
- cCuboid Box(m_BoundingBox);
- Box.Move(-a_ChunkDesc.GetChunkX() * cChunkDef::Width, 1, -a_ChunkDesc.GetChunkZ() * cChunkDef::Width);
- Box.p2.y = Box.p1.y;
- Box.p1.x += 1;
- Box.p2.x -= 1;
- Box.p1.z += 1;
- Box.p2.z -= 1;
- NIBBLETYPE Meta = 0;
- switch (m_Direction)
- {
- case dirXM:
- case dirXP:
- {
- Meta = E_META_TRACKS_X;
- break;
- }
-
- case dirZM:
- case dirZP:
- {
- Meta = E_META_TRACKS_Z;
- break;
- }
- } // switch (direction)
- a_ChunkDesc.RandomFillRelCuboid(Box, E_BLOCK_MINECART_TRACKS, Meta, a_ChunkDesc.GetChunkX() + a_ChunkDesc.GetChunkZ(), 6000);
-}
-
-
-
-
-
-void cMineShaftCorridor::PlaceSpawner(cChunkDesc & a_ChunkDesc)
-{
- if (m_SpawnerPosition < 0)
- {
- // No spawner in this corridor
- return;
- }
- int SpawnerRelX = m_BoundingBox.p1.x + 1 - a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- int SpawnerRelZ = m_BoundingBox.p1.z + 1 - a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- switch (m_Direction)
- {
- case dirXM:
- case dirXP:
- {
- SpawnerRelX += m_SpawnerPosition - 1;
- break;
- }
- case dirZM:
- case dirZP:
- {
- SpawnerRelZ += m_SpawnerPosition - 1;
- break;
- }
- }
- if (
- (SpawnerRelX >= 0) && (SpawnerRelX < cChunkDef::Width) &&
- (SpawnerRelZ >= 0) && (SpawnerRelZ < cChunkDef::Width)
- )
- {
- a_ChunkDesc.SetBlockTypeMeta(SpawnerRelX, m_BoundingBox.p1.y + 1, SpawnerRelZ, E_BLOCK_MOB_SPAWNER, 0);
- // TODO: The spawner needs its accompanying cMobSpawnerEntity, when implemented
- }
-}
-
-
-
-
-
-void cMineShaftCorridor::PlaceTorches(cChunkDesc & a_ChunkDesc)
-{
- cNoise Noise(m_BoundingBox.p1.x);
- switch (m_Direction)
- {
- case dirXM:
- case dirXP:
- {
- int z = m_BoundingBox.p1.z + 1 - a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- if ((z < 0) || (z >= cChunkDef::Width))
- {
- return;
- }
- int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- for (int i = 0; i < m_NumSegments; i++)
- {
- if (!m_HasFullBeam[i])
- {
- continue;
- }
- int x = m_BoundingBox.p1.x + i * 5 + 1 - BlockX;
- if ((x >= 0) && (x < cChunkDef::Width))
- {
- if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
- {
- a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_XP);
- }
- }
- x += 2;
- if ((x >= 0) && (x < cChunkDef::Width))
- {
- if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
- {
- a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_XM);
- }
- }
- } // for i
- break;
- }
-
- case dirZM:
- case dirZP:
- {
- int x = m_BoundingBox.p1.x + 1 - a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- if ((x < 0) || (x >= cChunkDef::Width))
- {
- return;
- }
- int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- for (int i = 0; i < m_NumSegments; i++)
- {
- if (!m_HasFullBeam[i])
- {
- continue;
- }
- int z = m_BoundingBox.p1.z + i * 5 + 1 - BlockZ;
- if ((z >= 0) && (z < cChunkDef::Width))
- {
- if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
- {
- a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_ZP);
- }
- }
- z += 2;
- if ((z >= 0) && (z < cChunkDef::Width))
- {
- if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
- {
- a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_ZM);
- }
- }
- } // for i
- break;
- }
- } // switch (direction)
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cMineShaftCrossing:
-
-cMineShaftCrossing::cMineShaftCrossing(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, const cCuboid & a_BoundingBox) :
- super(a_ParentSystem, mskCrossing, a_BoundingBox)
-{
-}
-
-
-
-
-
-cMineShaft * cMineShaftCrossing::CreateAndFit(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
- cNoise & a_Noise
-)
-{
- cCuboid BoundingBox(a_PivotX, a_PivotY - 1, a_PivotZ);
- int rnd = a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_ParentSystem.m_MineShafts.size(), a_PivotZ) / 7;
- BoundingBox.p2.y += 3;
- if ((rnd % 4) < 2)
- {
- // 2-level crossing:
- BoundingBox.p2.y += 4;
- rnd >>= 2;
- if ((rnd % 4) < 2)
- {
- // This is the higher level:
- BoundingBox.p1.y -= 4;
- BoundingBox.p2.y -= 4;
- }
- }
- rnd >>= 2;
- switch (a_Direction)
- {
- case dirXP: BoundingBox.p2.x += 4; BoundingBox.p1.z -= 2; BoundingBox.p2.z += 2; break;
- case dirXM: BoundingBox.p1.x -= 4; BoundingBox.p1.z -= 2; BoundingBox.p2.z += 2; break;
- case dirZP: BoundingBox.p2.z += 4; BoundingBox.p1.x -= 2; BoundingBox.p2.x += 2; break;
- case dirZM: BoundingBox.p1.z -= 4; BoundingBox.p1.x -= 2; BoundingBox.p2.x += 2; break;
- }
- if (!a_ParentSystem.CanAppend(BoundingBox))
- {
- return NULL;
- }
- return new cMineShaftCrossing(a_ParentSystem, BoundingBox);
-}
-
-
-
-
-
-void cMineShaftCrossing::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
-{
- struct
- {
- int x, y, z;
- eDirection dir;
- } Exits[] =
- {
- // Bottom level:
- {-1, 1, 2, dirXM},
- { 2, 1, -1, dirZM},
- { 5, 1, 2, dirXP},
- { 2, 1, 5, dirZP},
- // Top level:
- {-1, 5, 2, dirXM},
- { 2, 5, -1, dirZM},
- { 5, 5, 2, dirXP},
- { 2, 5, 5, dirZP},
- } ;
- for (int i = 0; i < ARRAYCOUNT(Exits); i++)
- {
- if (m_BoundingBox.p1.y + Exits[i].y >= m_BoundingBox.p2.y)
- {
- // This exit is not available (two-level exit on a one-level crossing)
- continue;
- }
-
- int Height = m_BoundingBox.p1.y + Exits[i].y;
- m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Exits[i].x, Height, m_BoundingBox.p1.z + Exits[i].z, Exits[i].dir, a_Noise, a_RecursionLevel);
- } // for i
-}
-
-
-
-
-
-void cMineShaftCrossing::ProcessChunk(cChunkDesc & a_ChunkDesc)
-{
- int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- cCuboid box(m_BoundingBox);
- box.Move(-BlockX, 0, -BlockZ);
- if ((box.p2.x < 0) || (box.p2.z < 0) || (box.p1.x >= cChunkDef::Width) || (box.p1.z > cChunkDef::Width))
- {
- // Does not intersect this chunk
- return;
- }
- int Floor = box.p1.y + 1;
- int Ceil = box.p2.y;
-
- // The supports:
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p1.x + 1, Floor, Ceil, box.p1.z + 1, box.p1.z + 1, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FillRelCuboid(box.p2.x - 1, box.p2.x - 1, Floor, Ceil, box.p1.z + 1, box.p1.z + 1, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p1.x + 1, Floor, Ceil, box.p2.z - 1, box.p2.z - 1, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FillRelCuboid(box.p2.x - 1, box.p2.x - 1, Floor, Ceil, box.p2.z - 1, box.p2.z - 1, E_BLOCK_PLANKS, 0);
-
- // The air in between:
- a_ChunkDesc.FillRelCuboid(box.p1.x + 2, box.p1.x + 2, Floor, Ceil, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Floor, Ceil, box.p1.z + 2, box.p1.z + 2, E_BLOCK_AIR, 0);
-
- // The air on the edges:
- int Mid = Floor + 2;
- a_ChunkDesc.FillRelCuboid(box.p1.x, box.p1.x, Floor, Mid, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p2.x, box.p2.x, Floor, Mid, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Floor, Mid, box.p1.z, box.p1.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Floor, Mid, box.p2.z, box.p2.z, E_BLOCK_AIR, 0);
- Mid += 2;
- if (Mid < Ceil)
- {
- a_ChunkDesc.FillRelCuboid(box.p1.x, box.p1.x, Mid, Ceil, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p2.x, box.p2.x, Mid, Ceil, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Mid, Ceil, box.p1.z, box.p1.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Mid, Ceil, box.p2.z, box.p2.z, E_BLOCK_AIR, 0);
- }
-
- // The floor, if needed:
- box.p2.y = box.p1.y;
- a_ChunkDesc.FloorRelCuboid(box, E_BLOCK_PLANKS, 0);
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cMineShaftStaircase:
-
-cMineShaftStaircase::cMineShaftStaircase(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- const cCuboid & a_BoundingBox,
- eDirection a_Direction,
- eSlope a_Slope
-) :
- super(a_ParentSystem, mskStaircase, a_BoundingBox),
- m_Direction(a_Direction),
- m_Slope(a_Slope)
-{
-}
-
-
-
-
-
-cMineShaft * cMineShaftStaircase::CreateAndFit(
- cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
- int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
- cNoise & a_Noise
-)
-{
- int rnd = a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_ParentSystem.m_MineShafts.size(), a_PivotZ) / 7;
- cCuboid Box;
- switch (a_Direction)
- {
- case dirXM:
- {
- Box.Assign(a_PivotX - 7, a_PivotY - 1, a_PivotZ - 1, a_PivotX, a_PivotY + 6, a_PivotZ + 1);
- break;
- }
- case dirXP:
- {
- Box.Assign(a_PivotX, a_PivotY - 1, a_PivotZ - 1, a_PivotX + 7, a_PivotY + 6, a_PivotZ + 1);
- break;
- }
- case dirZM:
- {
- Box.Assign(a_PivotX - 1, a_PivotY - 1, a_PivotZ - 7, a_PivotX + 1, a_PivotY + 6, a_PivotZ);
- break;
- }
- case dirZP:
- {
- Box.Assign(a_PivotX - 1, a_PivotY - 1, a_PivotZ, a_PivotX + 1, a_PivotY + 6, a_PivotZ + 7);
- break;
- }
- }
- eSlope Slope = sUp;
- if ((rnd % 4) < 2) // 50 %
- {
- Slope = sDown;
- Box.Move(0, -4, 0);
- }
- if (!a_ParentSystem.CanAppend(Box))
- {
- return NULL;
- }
- return new cMineShaftStaircase(a_ParentSystem, Box, a_Direction, Slope);
-}
-
-
-
-
-
-void cMineShaftStaircase::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
-{
- int Height = m_BoundingBox.p1.y + ((m_Slope == sDown) ? 1 : 5);
- switch (m_Direction)
- {
- case dirXM: m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + 1, dirXM, a_Noise, a_RecursionLevel); break;
- case dirXP: m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + 1, dirXP, a_Noise, a_RecursionLevel); break;
- case dirZM: m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel); break;
- case dirZP: m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel); break;
- }
-}
-
-
-
-
-
-void cMineShaftStaircase::ProcessChunk(cChunkDesc & a_ChunkDesc)
-{
- int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
- int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
- cCuboid RelB(m_BoundingBox);
- RelB.Move(-BlockX, 0, -BlockZ);
- if (
- (RelB.p1.x >= cChunkDef::Width) ||
- (RelB.p1.z >= cChunkDef::Width) ||
- (RelB.p2.x < 0) ||
- (RelB.p2.z < 0)
- )
- {
- // No intersection between this staircase and this chunk
- return;
- }
-
- int SFloor = RelB.p1.y + ((m_Slope == sDown) ? 5 : 1);
- int DFloor = RelB.p1.y + ((m_Slope == sDown) ? 1 : 5);
- int Add = (m_Slope == sDown) ? -1 : 1;
- int InitAdd = (m_Slope == sDown) ? -1 : 0;
- cCuboid Box;
- switch (m_Direction)
- {
- case dirXM:
- {
- a_ChunkDesc.FillRelCuboid (RelB.p2.x - 1, RelB.p2.x, SFloor, SFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p1.x + 1, DFloor, DFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p2.x - 1, RelB.p2.x, SFloor - 1, SFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p1.x + 1, DFloor - 1, DFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
- Box.Assign(RelB.p2.x - 2, SFloor + InitAdd, RelB.p1.z, RelB.p2.x - 2, SFloor + 3 + InitAdd, RelB.p2.z);
- for (int i = 0; i < 4; i++)
- {
- a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
- Box.Move(-1, Add, 0);
- }
- break;
- }
-
- case dirXP:
- {
- a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p1.x + 1, SFloor, SFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid (RelB.p2.x - 1, RelB.p2.x, DFloor, DFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p1.x + 1, SFloor - 1, SFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p2.x - 1, RelB.p2.x, DFloor - 1, DFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
- Box.Assign(RelB.p1.x + 2, SFloor + InitAdd, RelB.p1.z, RelB.p1.x + 2, SFloor + 3 + InitAdd, RelB.p2.z);
- for (int i = 0; i < 4; i++)
- {
- a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
- Box.Move(1, Add, 0);
- }
- break;
- }
-
- case dirZM:
- {
- a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, SFloor, SFloor + 2, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, DFloor, DFloor + 2, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, SFloor - 1, SFloor - 1, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, DFloor - 1, DFloor - 1, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_PLANKS, 0);
- Box.Assign(RelB.p1.x, SFloor + InitAdd, RelB.p2.z - 2, RelB.p2.x, SFloor + 3 + InitAdd, RelB.p2.z - 2);
- for (int i = 0; i < 4; i++)
- {
- a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
- Box.Move(0, Add, -1);
- }
- break;
- }
-
- case dirZP:
- {
- a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, SFloor, SFloor + 2, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_AIR, 0);
- a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, DFloor, DFloor + 2, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, SFloor - 1, SFloor - 1, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_PLANKS, 0);
- a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, DFloor - 1, DFloor - 1, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_PLANKS, 0);
- Box.Assign(RelB.p1.x, SFloor + InitAdd, RelB.p1.z + 2, RelB.p2.x, SFloor + 3 + InitAdd, RelB.p1.z + 2);
- for (int i = 0; i < 4; i++)
- {
- a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
- a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
- Box.Move(0, Add, 1);
- }
- break;
- }
-
- } // switch (m_Direction)
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenMineShafts:
-
-cStructGenMineShafts::cStructGenMineShafts(
- int a_Seed, int a_GridSize, int a_MaxSystemSize,
- int a_ChanceCorridor, int a_ChanceCrossing, int a_ChanceStaircase
-) :
- m_Noise(a_Seed),
- m_GridSize(a_GridSize),
- m_MaxSystemSize(a_MaxSystemSize),
- m_ProbLevelCorridor(std::max(0, a_ChanceCorridor)),
- m_ProbLevelCrossing(std::max(0, a_ChanceCorridor + a_ChanceCrossing)),
- m_ProbLevelStaircase(std::max(0, a_ChanceCorridor + a_ChanceCrossing + a_ChanceStaircase))
-{
-}
-
-
-
-
-
-cStructGenMineShafts::~cStructGenMineShafts()
-{
- ClearCache();
-}
-
-
-
-
-
-void cStructGenMineShafts::ClearCache(void)
-{
- for (cMineShaftSystems::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- } // for itr - m_Cache[]
- m_Cache.clear();
-}
-
-
-
-
-
-void cStructGenMineShafts::GetMineShaftSystemsForChunk(
- int a_ChunkX, int a_ChunkZ,
- cStructGenMineShafts::cMineShaftSystems & a_MineShafts
-)
-{
- int BaseX = a_ChunkX * cChunkDef::Width / m_GridSize;
- int BaseZ = a_ChunkZ * cChunkDef::Width / m_GridSize;
- if (BaseX < 0)
- {
- --BaseX;
- }
- if (BaseZ < 0)
- {
- --BaseZ;
- }
- BaseX -= NEIGHBORHOOD_SIZE / 2;
- BaseZ -= NEIGHBORHOOD_SIZE / 2;
-
- // Walk the cache, move each cave system that we want into a_Caves:
- int StartX = BaseX * m_GridSize;
- int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_GridSize;
- int StartZ = BaseZ * m_GridSize;
- int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_GridSize;
- for (cMineShaftSystems::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
- {
- if (
- ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
- ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
- )
- {
- // want
- a_MineShafts.push_back(*itr);
- itr = m_Cache.erase(itr);
- }
- else
- {
- // don't want
- ++itr;
- }
- } // for itr - m_Cache[]
-
- for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
- {
- int RealX = (BaseX + x) * m_GridSize;
- for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
- {
- int RealZ = (BaseZ + z) * m_GridSize;
- bool Found = false;
- for (cMineShaftSystems::const_iterator itr = a_MineShafts.begin(), end = a_MineShafts.end(); itr != end; ++itr)
- {
- if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
- {
- Found = true;
- break;
- }
- } // for itr - a_Mineshafts
- if (!Found)
- {
- a_MineShafts.push_back(new cMineShaftSystem(RealX, RealZ, m_GridSize, m_MaxSystemSize, m_Noise, m_ProbLevelCorridor, m_ProbLevelCrossing, m_ProbLevelStaircase));
- }
- } // for z
- } // for x
-
- // Copy a_MineShafts into m_Cache to the beginning:
- cMineShaftSystems MineShaftsCopy(a_MineShafts);
- m_Cache.splice(m_Cache.begin(), MineShaftsCopy, MineShaftsCopy.begin(), MineShaftsCopy.end());
-
- // Trim the cache if it's too long:
- if (m_Cache.size() > 100)
- {
- cMineShaftSystems::iterator itr = m_Cache.begin();
- std::advance(itr, 100);
- for (cMineShaftSystems::iterator end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- }
- itr = m_Cache.begin();
- std::advance(itr, 100);
- m_Cache.erase(itr, m_Cache.end());
- }
-}
-
-
-
-
-
-
-void cStructGenMineShafts::GenStructures(cChunkDesc & a_ChunkDesc)
-{
- int ChunkX = a_ChunkDesc.GetChunkX();
- int ChunkZ = a_ChunkDesc.GetChunkZ();
- cMineShaftSystems MineShafts;
- GetMineShaftSystemsForChunk(ChunkX, ChunkZ, MineShafts);
- for (cMineShaftSystems::const_iterator itr = MineShafts.begin(); itr != MineShafts.end(); ++itr)
- {
- (*itr)->ProcessChunk(a_ChunkDesc);
- } // for itr - MineShafts[]
-}
-
-
-
-
+
+// MineShafts.cpp
+
+// Implements the cStructGenMineShafts class representing the structure generator for abandoned mineshafts
+
+/*
+Algorithm:
+The cStructGenMineShafts::cMineShaftSystem class is the main controller, which knows what mineshaft
+classes there are and their random weights. It gets asked to produce a new class everytime a connection is to be made.
+The cMineShaft class is a base class for each mineshaft structure.
+Each cMineShaft descendant knows how large it is, how to imprint itself into the chunk data and where to connect to
+other descendants. Its PivotPoint is always a walkable column. Its Direction determines in which direction the structure
+is facing.
+
+The generation starts with the central dirt room, from there corridors, crossings and staircases are added
+in a depth-first processing. Each of the descendants will branch randomly, if not beyond the allowed recursion level
+*/
+
+#include "Globals.h"
+#include "MineShafts.h"
+#include "../Cuboid.h"
+#include "../BlockEntities/ChestEntity.h"
+
+
+
+
+
+static const int NEIGHBORHOOD_SIZE = 3;
+
+
+
+
+
+class cMineShaft abstract
+{
+public:
+ enum eKind
+ {
+ mskDirtRoom,
+ mskCorridor,
+ mskCrossing,
+ mskStaircase,
+ } ;
+
+
+ enum eDirection
+ {
+ dirXP,
+ dirZP,
+ dirXM,
+ dirZM,
+ } ;
+
+
+ cStructGenMineShafts::cMineShaftSystem & m_ParentSystem;
+ eKind m_Kind;
+ cCuboid m_BoundingBox;
+
+
+ cMineShaft(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, eKind a_Kind) :
+ m_ParentSystem(a_ParentSystem),
+ m_Kind(a_Kind)
+ {
+ }
+
+ cMineShaft(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, eKind a_Kind, const cCuboid & a_BoundingBox) :
+ m_ParentSystem(a_ParentSystem),
+ m_Kind(a_Kind),
+ m_BoundingBox(a_BoundingBox)
+ {
+ }
+
+ /// Returns true if this mineshaft intersects the specified cuboid
+ bool DoesIntersect(const cCuboid & a_Other)
+ {
+ return m_BoundingBox.DoesIntersect(a_Other);
+ }
+
+ /** If recursion level is not too large, appends more branches to the parent system,
+ using exit points specific to this class.
+ */
+ virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) = 0;
+
+ /// Imprints this shape into the specified chunk's data
+ virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) = 0;
+} ;
+
+typedef std::vector<cMineShaft *> cMineShafts;
+
+
+
+
+
+class cMineShaftDirtRoom :
+ public cMineShaft
+{
+ typedef cMineShaft super;
+
+public:
+ cMineShaftDirtRoom(cStructGenMineShafts::cMineShaftSystem & a_Parent, cNoise & a_Noise);
+
+ // cMineShaft overrides:
+ virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
+ virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cMineShaftCorridor :
+ public cMineShaft
+{
+ typedef cMineShaft super;
+
+public:
+ /** Creates a new Corridor attached to the specified pivot point and direction.
+ Checks all ParentSystem's objects and disallows intersecting. Initializes the new object to fit.
+ May return NULL if cannot fit.
+ */
+ static cMineShaft * CreateAndFit(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
+ cNoise & a_Noise
+ );
+
+protected:
+ static const int MAX_SEGMENTS = 5;
+
+ int m_NumSegments;
+ eDirection m_Direction;
+ bool m_HasFullBeam[MAX_SEGMENTS]; ///< If true, segment at that index has a full beam support (planks in the top center block)
+ int m_ChestPosition; ///< If <0, no chest; otherwise an offset from m_BoundingBox's p1.x or p1.z, depenging on m_Direction
+ int m_SpawnerPosition; ///< If <0, no spawner; otherwise an offset from m_BoundingBox's p1.x or p1.z, depenging on m_Direction
+ bool m_HasTracks; ///< If true, random tracks will be placed on the floor
+
+ cMineShaftCorridor(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ const cCuboid & a_BoundingBox, int a_NumSegments, eDirection a_Direction,
+ cNoise & a_Noise
+ );
+
+ // cMineShaft overrides:
+ virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
+ virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
+
+ /// Places a chest, if the corridor has one
+ void PlaceChest(cChunkDesc & a_ChunkDesc);
+
+ /// If this corridor has tracks, places them randomly
+ void PlaceTracks(cChunkDesc & a_ChunkDesc);
+
+ /// If this corridor has a spawner, places the spawner
+ void PlaceSpawner(cChunkDesc & a_ChunkDesc);
+
+ /// Randomly places torches around the central beam block
+ void PlaceTorches(cChunkDesc & a_ChunkDesc);
+} ;
+
+
+
+
+
+class cMineShaftCrossing :
+ public cMineShaft
+{
+ typedef cMineShaft super;
+
+public:
+ /** Creates a new Crossing attached to the specified pivot point and direction.
+ Checks all ParentSystem's objects and disallows intersecting. Initializes the new object to fit.
+ May return NULL if cannot fit.
+ */
+ static cMineShaft * CreateAndFit(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
+ cNoise & a_Noise
+ );
+
+protected:
+ cMineShaftCrossing(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, const cCuboid & a_BoundingBox);
+
+ // cMineShaft overrides:
+ virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
+ virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cMineShaftStaircase :
+ public cMineShaft
+{
+ typedef cMineShaft super;
+
+public:
+ enum eSlope
+ {
+ sUp,
+ sDown,
+ } ;
+
+ /** Creates a new Staircase attached to the specified pivot point and direction.
+ Checks all ParentSystem's objects and disallows intersecting. Initializes the new object to fit.
+ May return NULL if cannot fit.
+ */
+ static cMineShaft * CreateAndFit(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
+ cNoise & a_Noise
+ );
+
+protected:
+ eDirection m_Direction;
+ eSlope m_Slope;
+
+
+ cMineShaftStaircase(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ const cCuboid & a_BoundingBox,
+ eDirection a_Direction,
+ eSlope a_Slope
+ );
+
+ // cMineShaft overrides:
+ virtual void AppendBranches(int a_RecursionLevel, cNoise & a_Noise) override;
+ virtual void ProcessChunk(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cStructGenMineShafts::cMineShaftSystem
+{
+public:
+ int m_BlockX, m_BlockZ; ///< The pivot point on which the system is generated
+ int m_GridSize; ///< Maximum offset of the dirtroom from grid center, * 2, in each direction
+ int m_MaxRecursion; ///< Maximum recursion level (initialized from cStructGenMineShafts::m_MaxRecursion)
+ int m_ProbLevelCorridor; ///< Probability level of a branch object being the corridor
+ int m_ProbLevelCrossing; ///< Probability level of a branch object being the crossing, minus Corridor
+ int m_ProbLevelStaircase; ///< Probability level of a branch object being the staircase, minus Crossing
+ int m_ChanceChest; ///< Chance [0 .. 250] that a corridor has a chest in it
+ int m_ChanceSpawner; ///< Chance [0 .. 250] that a corridor has a spawner in it
+ int m_ChanceTorch; ///< Chance [0 .. 10k] for a torch appearing attached to a corridor's beam
+ cMineShafts m_MineShafts; ///< List of cMineShaft descendants that comprise this system
+ cCuboid m_BoundingBox; ///< Bounding box into which all of the components need to fit
+
+ /// Creates and generates the entire system
+ cMineShaftSystem(
+ int a_BlockX, int a_BlockZ, int a_GridSize, int a_MaxSystemSize, cNoise & a_Noise,
+ int a_ProbLevelCorridor, int a_ProbLevelCrossing, int a_ProbLevelStaircase
+ );
+
+ ~cMineShaftSystem();
+
+ /// Carves the system into the chunk data
+ void ProcessChunk(cChunkDesc & a_Chunk);
+
+ /** Creates new cMineShaft descendant connected at the specified point, heading the specified direction,
+ if it fits, appends it to the list and calls its AppendBranches()
+ */
+ void AppendBranch(
+ int a_BlockX, int a_BlockY, int a_BlockZ,
+ cMineShaft::eDirection a_Direction, cNoise & a_Noise,
+ int a_RecursionLevel
+ );
+
+ /// Returns true if none of the objects in m_MineShafts intersect with the specified bounding box and the bounding box is valid
+ bool CanAppend(const cCuboid & a_BoundingBox);
+} ;
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenMineShafts::cMineShaftSystem:
+
+cStructGenMineShafts::cMineShaftSystem::cMineShaftSystem(
+ int a_BlockX, int a_BlockZ, int a_GridSize, int a_MaxSystemSize, cNoise & a_Noise,
+ int a_ProbLevelCorridor, int a_ProbLevelCrossing, int a_ProbLevelStaircase
+) :
+ m_BlockX(a_BlockX),
+ m_BlockZ(a_BlockZ),
+ m_GridSize(a_GridSize),
+ m_MaxRecursion(8), // TODO: settable
+ m_ProbLevelCorridor(a_ProbLevelCorridor),
+ m_ProbLevelCrossing(a_ProbLevelCrossing),
+ m_ProbLevelStaircase(a_ProbLevelStaircase + 1),
+ m_ChanceChest(12), // TODO: settable
+ m_ChanceSpawner(12), // TODO: settable
+ m_ChanceTorch(1000) // TODO: settable
+{
+ m_MineShafts.reserve(100);
+
+ cMineShaft * Start = new cMineShaftDirtRoom(*this, a_Noise);
+ m_MineShafts.push_back(Start);
+
+ m_BoundingBox.Assign(
+ Start->m_BoundingBox.p1.x - a_MaxSystemSize / 2, 2, Start->m_BoundingBox.p1.z - a_MaxSystemSize / 2,
+ Start->m_BoundingBox.p2.x + a_MaxSystemSize / 2, 50, Start->m_BoundingBox.p2.z + a_MaxSystemSize / 2
+ );
+
+ Start->AppendBranches(0, a_Noise);
+
+ for (cMineShafts::const_iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
+ {
+ ASSERT((*itr)->m_BoundingBox.IsSorted());
+ } // for itr - m_MineShafts[]
+}
+
+
+
+
+
+cStructGenMineShafts::cMineShaftSystem::~cMineShaftSystem()
+{
+ for (cMineShafts::iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ } // for itr - m_MineShafts[]
+ m_MineShafts.clear();
+}
+
+
+
+
+
+void cStructGenMineShafts::cMineShaftSystem::ProcessChunk(cChunkDesc & a_Chunk)
+{
+ for (cMineShafts::const_iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
+ {
+ (*itr)->ProcessChunk(a_Chunk);
+ } // for itr - m_MineShafts[]
+}
+
+
+
+
+
+void cStructGenMineShafts::cMineShaftSystem::AppendBranch(
+ int a_PivotX, int a_PivotY, int a_PivotZ,
+ cMineShaft::eDirection a_Direction, cNoise & a_Noise,
+ int a_RecursionLevel
+)
+{
+ if (a_RecursionLevel > m_MaxRecursion)
+ {
+ return;
+ }
+
+ cMineShaft * Next = NULL;
+ int rnd = (a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_RecursionLevel * 16, a_PivotZ) / 13) % m_ProbLevelStaircase;
+ if (rnd < m_ProbLevelCorridor)
+ {
+ Next = cMineShaftCorridor::CreateAndFit(*this, a_PivotX, a_PivotY, a_PivotZ, a_Direction, a_Noise);
+ }
+ else if (rnd < m_ProbLevelCrossing)
+ {
+ Next = cMineShaftCrossing::CreateAndFit(*this, a_PivotX, a_PivotY, a_PivotZ, a_Direction, a_Noise);
+ }
+ else
+ {
+ Next = cMineShaftStaircase::CreateAndFit(*this, a_PivotX, a_PivotY, a_PivotZ, a_Direction, a_Noise);
+ }
+ if (Next == NULL)
+ {
+ return;
+ }
+ m_MineShafts.push_back(Next);
+ Next->AppendBranches(a_RecursionLevel + 1, a_Noise);
+}
+
+
+
+
+
+bool cStructGenMineShafts::cMineShaftSystem::CanAppend(const cCuboid & a_BoundingBox)
+{
+ if (!a_BoundingBox.IsCompletelyInside(m_BoundingBox))
+ {
+ // Too far away, or too low / too high
+ return false;
+ }
+
+ // Check intersections:
+ for (cMineShafts::const_iterator itr = m_MineShafts.begin(), end = m_MineShafts.end(); itr != end; ++itr)
+ {
+ if ((*itr)->DoesIntersect(a_BoundingBox))
+ {
+ return false;
+ }
+ } // for itr - m_MineShafts[]
+ return true;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cMineShaftDirtRoom:
+
+cMineShaftDirtRoom::cMineShaftDirtRoom(cStructGenMineShafts::cMineShaftSystem & a_Parent, cNoise & a_Noise) :
+ super(a_Parent, mskDirtRoom)
+{
+ // Make the room of random size, min 10 x 4 x 10; max 18 x 12 x 18:
+ int rnd = a_Noise.IntNoise3DInt(a_Parent.m_BlockX, 0, a_Parent.m_BlockZ) / 7;
+ int OfsX = (rnd % a_Parent.m_GridSize) - a_Parent.m_GridSize / 2;
+ rnd >>= 12;
+ int OfsZ = (rnd % a_Parent.m_GridSize) - a_Parent.m_GridSize / 2;
+ rnd = a_Noise.IntNoise3DInt(a_Parent.m_BlockX, 1000, a_Parent.m_BlockZ) / 11;
+ m_BoundingBox.p1.x = a_Parent.m_BlockX + OfsX;
+ m_BoundingBox.p2.x = m_BoundingBox.p1.x + 10 + (rnd % 8);
+ rnd >>= 4;
+ m_BoundingBox.p1.z = a_Parent.m_BlockZ + OfsZ;
+ m_BoundingBox.p2.z = m_BoundingBox.p1.z + 10 + (rnd % 8);
+ rnd >>= 4;
+ m_BoundingBox.p1.y = 20;
+ m_BoundingBox.p2.y = 24 + rnd % 8;
+}
+
+
+
+
+
+void cMineShaftDirtRoom::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
+{
+ int Height = m_BoundingBox.DifY() - 3;
+ for (int x = m_BoundingBox.p1.x + 1; x < m_BoundingBox.p2.x; x += 4)
+ {
+ int rnd = a_Noise.IntNoise3DInt(x, a_RecursionLevel, m_BoundingBox.p1.z) / 7;
+ m_ParentSystem.AppendBranch(x, m_BoundingBox.p1.y + (rnd % Height), m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
+ rnd >>= 4;
+ m_ParentSystem.AppendBranch(x, m_BoundingBox.p1.y + (rnd % Height), m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
+ }
+
+ for (int z = m_BoundingBox.p1.z + 1; z < m_BoundingBox.p2.z; z += 4)
+ {
+ int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x, a_RecursionLevel, z) / 13;
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, m_BoundingBox.p1.y + (rnd % Height), z, dirXM, a_Noise, a_RecursionLevel);
+ rnd >>= 4;
+ m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, m_BoundingBox.p1.y + (rnd % Height), z, dirXP, a_Noise, a_RecursionLevel);
+ }
+}
+
+
+
+
+
+void cMineShaftDirtRoom::ProcessChunk(cChunkDesc & a_ChunkDesc)
+{
+ int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ if (
+ (m_BoundingBox.p1.x > BlockX + cChunkDef::Width) ||
+ (m_BoundingBox.p1.z > BlockZ + cChunkDef::Width) ||
+ (m_BoundingBox.p2.x < BlockX) ||
+ (m_BoundingBox.p2.z < BlockZ)
+ )
+ {
+ // Early bailout - cannot intersect this chunk
+ return;
+ }
+
+ // Chunk-relative coords of the boundaries:
+ int MinX = std::max(BlockX, m_BoundingBox.p1.x) - BlockX;
+ int MaxX = std::min(BlockX + cChunkDef::Width, m_BoundingBox.p2.x + 1) - BlockX;
+ int MinZ = std::max(BlockZ, m_BoundingBox.p1.z) - BlockZ;
+ int MaxZ = std::min(BlockZ + cChunkDef::Width, m_BoundingBox.p2.z + 1) - BlockZ;
+
+ // Carve the room out:
+ for (int z = MinZ; z < MaxZ; z++)
+ {
+ for (int x = MinX; x < MaxX; x++)
+ {
+ for (int y = m_BoundingBox.p1.y + 1; y < m_BoundingBox.p2.y; y++)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
+ }
+ if (a_ChunkDesc.GetBlockType(x, m_BoundingBox.p1.y, z) != E_BLOCK_AIR)
+ {
+ a_ChunkDesc.SetBlockType(x, m_BoundingBox.p1.y, z, E_BLOCK_DIRT);
+ }
+ } // for x
+ } // for z
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cMineShaftCorridor:
+
+cMineShaftCorridor::cMineShaftCorridor(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ const cCuboid & a_BoundingBox, int a_NumSegments, eDirection a_Direction,
+ cNoise & a_Noise
+) :
+ super(a_ParentSystem, mskCorridor, a_BoundingBox),
+ m_NumSegments(a_NumSegments),
+ m_Direction(a_Direction),
+ m_ChestPosition(-1),
+ m_SpawnerPosition(-1)
+{
+ int rnd = a_Noise.IntNoise3DInt(a_BoundingBox.p1.x, a_BoundingBox.p1.y, a_BoundingBox.p1.z) / 7;
+ for (int i = 0; i < a_NumSegments; i++)
+ {
+ m_HasFullBeam[i] = (rnd % 4) < 3; // 75 % chance of full beam
+ rnd >>= 2;
+ }
+ m_HasTracks = ((rnd % 4) < 2); // 50 % chance of tracks
+
+ rnd = a_Noise.IntNoise3DInt(a_BoundingBox.p1.z, a_BoundingBox.p1.x, a_BoundingBox.p1.y) / 7;
+ int ChestCheck = rnd % 250;
+ rnd >>= 8;
+ int SpawnerCheck = rnd % 250;
+ rnd >>= 8;
+ if (ChestCheck < a_ParentSystem.m_ChanceChest)
+ {
+ m_ChestPosition = rnd % (a_NumSegments * 5);
+ }
+ if ((a_NumSegments < 4) && (SpawnerCheck < a_ParentSystem.m_ChanceSpawner))
+ {
+ m_SpawnerPosition = rnd % (a_NumSegments * 5);
+ }
+}
+
+
+
+
+
+cMineShaft * cMineShaftCorridor::CreateAndFit(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
+ cNoise & a_Noise
+)
+{
+ cCuboid BoundingBox(a_PivotX, a_PivotY - 1, a_PivotZ);
+ BoundingBox.p2.y += 3;
+ int rnd = a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_ParentSystem.m_MineShafts.size(), a_PivotZ) / 7;
+ int NumSegments = 2 + (rnd) % (MAX_SEGMENTS - 1); // 2 .. MAX_SEGMENTS
+ switch (a_Direction)
+ {
+ case dirXP: BoundingBox.p2.x += NumSegments * 5 - 1; BoundingBox.p1.z -= 1; BoundingBox.p2.z += 1; break;
+ case dirXM: BoundingBox.p1.x -= NumSegments * 5 - 1; BoundingBox.p1.z -= 1; BoundingBox.p2.z += 1; break;
+ case dirZP: BoundingBox.p2.z += NumSegments * 5 - 1; BoundingBox.p1.x -= 1; BoundingBox.p2.x += 1; break;
+ case dirZM: BoundingBox.p1.z -= NumSegments * 5 - 1; BoundingBox.p1.x -= 1; BoundingBox.p2.x += 1; break;
+ }
+ if (!a_ParentSystem.CanAppend(BoundingBox))
+ {
+ return NULL;
+ }
+ return new cMineShaftCorridor(a_ParentSystem, BoundingBox, NumSegments, a_Direction, a_Noise);
+}
+
+
+
+
+
+void cMineShaftCorridor::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
+{
+ int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 7;
+ // Prefer the same height, but allow for up to one block height displacement:
+ int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
+ switch (m_Direction)
+ {
+ case dirXM:
+ {
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + 1, dirXM, a_Noise, a_RecursionLevel);
+ for (int i = m_NumSegments; i >= 0; i--)
+ {
+ int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
+ int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
+ rnd >>= 6;
+ int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
+ }
+ break;
+ }
+
+ case dirXP:
+ {
+ m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + 1, dirXP, a_Noise, a_RecursionLevel);
+ for (int i = m_NumSegments; i >= 0; i--)
+ {
+ int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
+ int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
+ rnd >>= 6;
+ int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Ofs, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
+ }
+ break;
+ }
+
+ case dirZM:
+ {
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel);
+ for (int i = m_NumSegments; i >= 0; i--)
+ {
+ int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
+ int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
+ rnd >>= 6;
+ int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + Ofs, dirXM, a_Noise, a_RecursionLevel);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + Ofs, dirXP, a_Noise, a_RecursionLevel);
+ }
+ break;
+ }
+
+ case dirZP:
+ {
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel);
+ for (int i = m_NumSegments; i >= 0; i--)
+ {
+ int rnd = a_Noise.IntNoise3DInt(m_BoundingBox.p1.x + i + 10, m_BoundingBox.p1.y + a_RecursionLevel, m_BoundingBox.p1.z) / 11;
+ int Height = m_BoundingBox.p1.y + ((rnd % 4) + ((rnd >> 3) % 3)) / 2;
+ rnd >>= 6;
+ int Ofs = 1 + rnd % (m_NumSegments * 5 - 2);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + Ofs, dirXM, a_Noise, a_RecursionLevel);
+ m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + Ofs, dirXP, a_Noise, a_RecursionLevel);
+ }
+ break;
+ }
+ } // switch (m_Direction)
+}
+
+
+
+
+
+void cMineShaftCorridor::ProcessChunk(cChunkDesc & a_ChunkDesc)
+{
+ int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ cCuboid RelBoundingBox(m_BoundingBox);
+ RelBoundingBox.Move(-BlockX, 0, -BlockZ);
+ RelBoundingBox.p1.y += 1;
+ RelBoundingBox.p2.y -= 1;
+ cCuboid Top(RelBoundingBox);
+ Top.p2.y += 1;
+ Top.p1.y = Top.p2.y;
+ a_ChunkDesc.FillRelCuboid(RelBoundingBox, E_BLOCK_AIR, 0);
+ a_ChunkDesc.RandomFillRelCuboid(Top, E_BLOCK_AIR, 0, BlockX ^ BlockZ + BlockX, 8000);
+ if (m_SpawnerPosition >= 0)
+ {
+ // Cobwebs around the spider spawner
+ a_ChunkDesc.RandomFillRelCuboid(RelBoundingBox, E_BLOCK_COBWEB, 0, BlockX ^ BlockZ + BlockZ, 8000);
+ a_ChunkDesc.RandomFillRelCuboid(Top, E_BLOCK_COBWEB, 0, BlockX ^ BlockZ + BlockX, 5000);
+ }
+ a_ChunkDesc.RandomFillRelCuboid(Top, E_BLOCK_COBWEB, 0, BlockX ^ BlockZ + BlockX + 10, 500);
+ RelBoundingBox.p1.y = m_BoundingBox.p1.y;
+ RelBoundingBox.p2.y = m_BoundingBox.p1.y;
+ a_ChunkDesc.FloorRelCuboid(RelBoundingBox, E_BLOCK_PLANKS, 0);
+ switch (m_Direction)
+ {
+ case dirXM:
+ case dirXP:
+ {
+ int y1 = m_BoundingBox.p1.y + 1;
+ int y2 = m_BoundingBox.p1.y + 2;
+ int y3 = m_BoundingBox.p1.y + 3;
+ int z1 = m_BoundingBox.p1.z - BlockZ;
+ int z2 = m_BoundingBox.p2.z - BlockZ;
+ for (int i = 0; i < m_NumSegments; i++)
+ {
+ int x = m_BoundingBox.p1.x + i * 5 + 2 - BlockX;
+ if ((x < 0) || (x >= cChunkDef::Width))
+ {
+ continue;
+ }
+ if ((z1 >= 0) && (z1 < cChunkDef::Width))
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, y1, z1, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x, y2, z1, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x, y3, z1, E_BLOCK_PLANKS, 0);
+ }
+ if ((z2 >= 0) && (z2 < cChunkDef::Width))
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, y1, z2, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x, y2, z2, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x, y3, z2, E_BLOCK_PLANKS, 0);
+ }
+ if ((z1 >= -1) && (z1 < cChunkDef::Width - 1) && m_HasFullBeam[i])
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, y3, z1 + 1, E_BLOCK_PLANKS, 0);
+ }
+ } // for i - NumSegments
+ break;
+ }
+
+ case dirZM:
+ case dirZP:
+ {
+ int y1 = m_BoundingBox.p1.y + 1;
+ int y2 = m_BoundingBox.p1.y + 2;
+ int y3 = m_BoundingBox.p1.y + 3;
+ int x1 = m_BoundingBox.p1.x - BlockX;
+ int x2 = m_BoundingBox.p2.x - BlockX;
+ for (int i = 0; i < m_NumSegments; i++)
+ {
+ int z = m_BoundingBox.p1.z + i * 5 + 2 - BlockZ;
+ if ((z < 0) || (z >= cChunkDef::Width))
+ {
+ continue;
+ }
+ if ((x1 >= 0) && (x1 < cChunkDef::Width))
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x1, y1, z, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x1, y2, z, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x1, y3, z, E_BLOCK_PLANKS, 0);
+ }
+ if ((x2 >= 0) && (x2 < cChunkDef::Width))
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x2, y1, z, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x2, y2, z, E_BLOCK_FENCE, 0);
+ a_ChunkDesc.SetBlockTypeMeta(x2, y3, z, E_BLOCK_PLANKS, 0);
+ }
+ if ((x1 >= -1) && (x1 < cChunkDef::Width - 1) && m_HasFullBeam[i])
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x1 + 1, y3, z, E_BLOCK_PLANKS, 0);
+ }
+ } // for i - NumSegments
+ break;
+ } // case dirZ?
+ } // for i
+
+ PlaceChest(a_ChunkDesc);
+ PlaceTracks(a_ChunkDesc);
+ PlaceSpawner(a_ChunkDesc); // (must be after Tracks!)
+ PlaceTorches(a_ChunkDesc);
+}
+
+
+
+
+
+void cMineShaftCorridor::PlaceChest(cChunkDesc & a_ChunkDesc)
+{
+ static const cLootProbab LootProbab[] =
+ {
+ // Item, MinAmount, MaxAmount, Weight
+ { cItem(E_ITEM_IRON), 1, 5, 10 },
+ { cItem(E_ITEM_GOLD), 1, 3, 5 },
+ { cItem(E_ITEM_REDSTONE_DUST), 4, 9, 5 },
+ { cItem(E_ITEM_DIAMOND), 1, 2, 3 },
+ { cItem(E_ITEM_DYE, 1, 4), 4, 9, 5 }, // lapis lazuli dye
+ { cItem(E_ITEM_COAL), 3, 8, 10 },
+ { cItem(E_ITEM_BREAD), 1, 3, 15 },
+ { cItem(E_ITEM_IRON_PICKAXE), 1, 1, 1 },
+ { cItem(E_BLOCK_MINECART_TRACKS), 4, 8, 1 },
+ { cItem(E_ITEM_MELON_SEEDS), 2, 4, 10 },
+ { cItem(E_ITEM_PUMPKIN_SEEDS), 2, 4, 10 },
+ } ;
+
+ if (m_ChestPosition < 0)
+ {
+ return;
+ }
+
+ int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ int x, z;
+ NIBBLETYPE Meta = 0;
+ switch (m_Direction)
+ {
+ case dirXM:
+ case dirXP:
+ {
+ x = m_BoundingBox.p1.x + m_ChestPosition - BlockX;
+ z = m_BoundingBox.p1.z - BlockZ;
+ Meta = E_META_CHEST_FACING_ZP;
+ break;
+ }
+
+ case dirZM:
+ case dirZP:
+ {
+ x = m_BoundingBox.p1.x - BlockX;
+ z = m_BoundingBox.p1.z + m_ChestPosition - BlockZ;
+ Meta = E_META_CHEST_FACING_XP;
+ break;
+ }
+ } // switch (Dir)
+
+ if (
+ (x >= 0) && (x < cChunkDef::Width) &&
+ (z >= 0) && (z < cChunkDef::Width)
+ )
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p1.y + 1, z, E_BLOCK_CHEST, Meta);
+ cChestEntity * ChestEntity = new cChestEntity(BlockX + x, m_BoundingBox.p1.y + 1, BlockZ + z);
+ cNoise Noise(a_ChunkDesc.GetChunkX() ^ a_ChunkDesc.GetChunkZ());
+ int NumSlots = 3 + ((Noise.IntNoise3DInt(x, m_BoundingBox.p1.y, z) / 11) % 4);
+ int Seed = Noise.IntNoise2DInt(x, z);
+ ChestEntity->GetContents().GenerateRandomLootWithBooks(LootProbab, ARRAYCOUNT(LootProbab), NumSlots, Seed);
+ a_ChunkDesc.AddBlockEntity(ChestEntity);
+ }
+}
+
+
+
+
+
+void cMineShaftCorridor::PlaceTracks(cChunkDesc & a_ChunkDesc)
+{
+ if (!m_HasTracks)
+ {
+ return;
+ }
+ cCuboid Box(m_BoundingBox);
+ Box.Move(-a_ChunkDesc.GetChunkX() * cChunkDef::Width, 1, -a_ChunkDesc.GetChunkZ() * cChunkDef::Width);
+ Box.p2.y = Box.p1.y;
+ Box.p1.x += 1;
+ Box.p2.x -= 1;
+ Box.p1.z += 1;
+ Box.p2.z -= 1;
+ NIBBLETYPE Meta = 0;
+ switch (m_Direction)
+ {
+ case dirXM:
+ case dirXP:
+ {
+ Meta = E_META_TRACKS_X;
+ break;
+ }
+
+ case dirZM:
+ case dirZP:
+ {
+ Meta = E_META_TRACKS_Z;
+ break;
+ }
+ } // switch (direction)
+ a_ChunkDesc.RandomFillRelCuboid(Box, E_BLOCK_MINECART_TRACKS, Meta, a_ChunkDesc.GetChunkX() + a_ChunkDesc.GetChunkZ(), 6000);
+}
+
+
+
+
+
+void cMineShaftCorridor::PlaceSpawner(cChunkDesc & a_ChunkDesc)
+{
+ if (m_SpawnerPosition < 0)
+ {
+ // No spawner in this corridor
+ return;
+ }
+ int SpawnerRelX = m_BoundingBox.p1.x + 1 - a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int SpawnerRelZ = m_BoundingBox.p1.z + 1 - a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ switch (m_Direction)
+ {
+ case dirXM:
+ case dirXP:
+ {
+ SpawnerRelX += m_SpawnerPosition - 1;
+ break;
+ }
+ case dirZM:
+ case dirZP:
+ {
+ SpawnerRelZ += m_SpawnerPosition - 1;
+ break;
+ }
+ }
+ if (
+ (SpawnerRelX >= 0) && (SpawnerRelX < cChunkDef::Width) &&
+ (SpawnerRelZ >= 0) && (SpawnerRelZ < cChunkDef::Width)
+ )
+ {
+ a_ChunkDesc.SetBlockTypeMeta(SpawnerRelX, m_BoundingBox.p1.y + 1, SpawnerRelZ, E_BLOCK_MOB_SPAWNER, 0);
+ // TODO: The spawner needs its accompanying cMobSpawnerEntity, when implemented
+ }
+}
+
+
+
+
+
+void cMineShaftCorridor::PlaceTorches(cChunkDesc & a_ChunkDesc)
+{
+ cNoise Noise(m_BoundingBox.p1.x);
+ switch (m_Direction)
+ {
+ case dirXM:
+ case dirXP:
+ {
+ int z = m_BoundingBox.p1.z + 1 - a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ if ((z < 0) || (z >= cChunkDef::Width))
+ {
+ return;
+ }
+ int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ for (int i = 0; i < m_NumSegments; i++)
+ {
+ if (!m_HasFullBeam[i])
+ {
+ continue;
+ }
+ int x = m_BoundingBox.p1.x + i * 5 + 1 - BlockX;
+ if ((x >= 0) && (x < cChunkDef::Width))
+ {
+ if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_XP);
+ }
+ }
+ x += 2;
+ if ((x >= 0) && (x < cChunkDef::Width))
+ {
+ if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_XM);
+ }
+ }
+ } // for i
+ break;
+ }
+
+ case dirZM:
+ case dirZP:
+ {
+ int x = m_BoundingBox.p1.x + 1 - a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ if ((x < 0) || (x >= cChunkDef::Width))
+ {
+ return;
+ }
+ int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ for (int i = 0; i < m_NumSegments; i++)
+ {
+ if (!m_HasFullBeam[i])
+ {
+ continue;
+ }
+ int z = m_BoundingBox.p1.z + i * 5 + 1 - BlockZ;
+ if ((z >= 0) && (z < cChunkDef::Width))
+ {
+ if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_ZP);
+ }
+ }
+ z += 2;
+ if ((z >= 0) && (z < cChunkDef::Width))
+ {
+ if (((Noise.IntNoise2DInt(x, z) / 7) % 10000) < m_ParentSystem.m_ChanceTorch)
+ {
+ a_ChunkDesc.SetBlockTypeMeta(x, m_BoundingBox.p2.y, z, E_BLOCK_TORCH, E_META_TORCH_ZM);
+ }
+ }
+ } // for i
+ break;
+ }
+ } // switch (direction)
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cMineShaftCrossing:
+
+cMineShaftCrossing::cMineShaftCrossing(cStructGenMineShafts::cMineShaftSystem & a_ParentSystem, const cCuboid & a_BoundingBox) :
+ super(a_ParentSystem, mskCrossing, a_BoundingBox)
+{
+}
+
+
+
+
+
+cMineShaft * cMineShaftCrossing::CreateAndFit(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
+ cNoise & a_Noise
+)
+{
+ cCuboid BoundingBox(a_PivotX, a_PivotY - 1, a_PivotZ);
+ int rnd = a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_ParentSystem.m_MineShafts.size(), a_PivotZ) / 7;
+ BoundingBox.p2.y += 3;
+ if ((rnd % 4) < 2)
+ {
+ // 2-level crossing:
+ BoundingBox.p2.y += 4;
+ rnd >>= 2;
+ if ((rnd % 4) < 2)
+ {
+ // This is the higher level:
+ BoundingBox.p1.y -= 4;
+ BoundingBox.p2.y -= 4;
+ }
+ }
+ rnd >>= 2;
+ switch (a_Direction)
+ {
+ case dirXP: BoundingBox.p2.x += 4; BoundingBox.p1.z -= 2; BoundingBox.p2.z += 2; break;
+ case dirXM: BoundingBox.p1.x -= 4; BoundingBox.p1.z -= 2; BoundingBox.p2.z += 2; break;
+ case dirZP: BoundingBox.p2.z += 4; BoundingBox.p1.x -= 2; BoundingBox.p2.x += 2; break;
+ case dirZM: BoundingBox.p1.z -= 4; BoundingBox.p1.x -= 2; BoundingBox.p2.x += 2; break;
+ }
+ if (!a_ParentSystem.CanAppend(BoundingBox))
+ {
+ return NULL;
+ }
+ return new cMineShaftCrossing(a_ParentSystem, BoundingBox);
+}
+
+
+
+
+
+void cMineShaftCrossing::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
+{
+ struct
+ {
+ int x, y, z;
+ eDirection dir;
+ } Exits[] =
+ {
+ // Bottom level:
+ {-1, 1, 2, dirXM},
+ { 2, 1, -1, dirZM},
+ { 5, 1, 2, dirXP},
+ { 2, 1, 5, dirZP},
+ // Top level:
+ {-1, 5, 2, dirXM},
+ { 2, 5, -1, dirZM},
+ { 5, 5, 2, dirXP},
+ { 2, 5, 5, dirZP},
+ } ;
+ for (int i = 0; i < ARRAYCOUNT(Exits); i++)
+ {
+ if (m_BoundingBox.p1.y + Exits[i].y >= m_BoundingBox.p2.y)
+ {
+ // This exit is not available (two-level exit on a one-level crossing)
+ continue;
+ }
+
+ int Height = m_BoundingBox.p1.y + Exits[i].y;
+ m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + Exits[i].x, Height, m_BoundingBox.p1.z + Exits[i].z, Exits[i].dir, a_Noise, a_RecursionLevel);
+ } // for i
+}
+
+
+
+
+
+void cMineShaftCrossing::ProcessChunk(cChunkDesc & a_ChunkDesc)
+{
+ int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ cCuboid box(m_BoundingBox);
+ box.Move(-BlockX, 0, -BlockZ);
+ if ((box.p2.x < 0) || (box.p2.z < 0) || (box.p1.x >= cChunkDef::Width) || (box.p1.z > cChunkDef::Width))
+ {
+ // Does not intersect this chunk
+ return;
+ }
+ int Floor = box.p1.y + 1;
+ int Ceil = box.p2.y;
+
+ // The supports:
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p1.x + 1, Floor, Ceil, box.p1.z + 1, box.p1.z + 1, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FillRelCuboid(box.p2.x - 1, box.p2.x - 1, Floor, Ceil, box.p1.z + 1, box.p1.z + 1, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p1.x + 1, Floor, Ceil, box.p2.z - 1, box.p2.z - 1, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FillRelCuboid(box.p2.x - 1, box.p2.x - 1, Floor, Ceil, box.p2.z - 1, box.p2.z - 1, E_BLOCK_PLANKS, 0);
+
+ // The air in between:
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 2, box.p1.x + 2, Floor, Ceil, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Floor, Ceil, box.p1.z + 2, box.p1.z + 2, E_BLOCK_AIR, 0);
+
+ // The air on the edges:
+ int Mid = Floor + 2;
+ a_ChunkDesc.FillRelCuboid(box.p1.x, box.p1.x, Floor, Mid, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p2.x, box.p2.x, Floor, Mid, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Floor, Mid, box.p1.z, box.p1.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Floor, Mid, box.p2.z, box.p2.z, E_BLOCK_AIR, 0);
+ Mid += 2;
+ if (Mid < Ceil)
+ {
+ a_ChunkDesc.FillRelCuboid(box.p1.x, box.p1.x, Mid, Ceil, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p2.x, box.p2.x, Mid, Ceil, box.p1.z + 1, box.p2.z - 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Mid, Ceil, box.p1.z, box.p1.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid(box.p1.x + 1, box.p2.x - 1, Mid, Ceil, box.p2.z, box.p2.z, E_BLOCK_AIR, 0);
+ }
+
+ // The floor, if needed:
+ box.p2.y = box.p1.y;
+ a_ChunkDesc.FloorRelCuboid(box, E_BLOCK_PLANKS, 0);
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cMineShaftStaircase:
+
+cMineShaftStaircase::cMineShaftStaircase(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ const cCuboid & a_BoundingBox,
+ eDirection a_Direction,
+ eSlope a_Slope
+) :
+ super(a_ParentSystem, mskStaircase, a_BoundingBox),
+ m_Direction(a_Direction),
+ m_Slope(a_Slope)
+{
+}
+
+
+
+
+
+cMineShaft * cMineShaftStaircase::CreateAndFit(
+ cStructGenMineShafts::cMineShaftSystem & a_ParentSystem,
+ int a_PivotX, int a_PivotY, int a_PivotZ, eDirection a_Direction,
+ cNoise & a_Noise
+)
+{
+ int rnd = a_Noise.IntNoise3DInt(a_PivotX, a_PivotY + a_ParentSystem.m_MineShafts.size(), a_PivotZ) / 7;
+ cCuboid Box;
+ switch (a_Direction)
+ {
+ case dirXM:
+ {
+ Box.Assign(a_PivotX - 7, a_PivotY - 1, a_PivotZ - 1, a_PivotX, a_PivotY + 6, a_PivotZ + 1);
+ break;
+ }
+ case dirXP:
+ {
+ Box.Assign(a_PivotX, a_PivotY - 1, a_PivotZ - 1, a_PivotX + 7, a_PivotY + 6, a_PivotZ + 1);
+ break;
+ }
+ case dirZM:
+ {
+ Box.Assign(a_PivotX - 1, a_PivotY - 1, a_PivotZ - 7, a_PivotX + 1, a_PivotY + 6, a_PivotZ);
+ break;
+ }
+ case dirZP:
+ {
+ Box.Assign(a_PivotX - 1, a_PivotY - 1, a_PivotZ, a_PivotX + 1, a_PivotY + 6, a_PivotZ + 7);
+ break;
+ }
+ }
+ eSlope Slope = sUp;
+ if ((rnd % 4) < 2) // 50 %
+ {
+ Slope = sDown;
+ Box.Move(0, -4, 0);
+ }
+ if (!a_ParentSystem.CanAppend(Box))
+ {
+ return NULL;
+ }
+ return new cMineShaftStaircase(a_ParentSystem, Box, a_Direction, Slope);
+}
+
+
+
+
+
+void cMineShaftStaircase::AppendBranches(int a_RecursionLevel, cNoise & a_Noise)
+{
+ int Height = m_BoundingBox.p1.y + ((m_Slope == sDown) ? 1 : 5);
+ switch (m_Direction)
+ {
+ case dirXM: m_ParentSystem.AppendBranch(m_BoundingBox.p1.x - 1, Height, m_BoundingBox.p1.z + 1, dirXM, a_Noise, a_RecursionLevel); break;
+ case dirXP: m_ParentSystem.AppendBranch(m_BoundingBox.p2.x + 1, Height, m_BoundingBox.p1.z + 1, dirXP, a_Noise, a_RecursionLevel); break;
+ case dirZM: m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p1.z - 1, dirZM, a_Noise, a_RecursionLevel); break;
+ case dirZP: m_ParentSystem.AppendBranch(m_BoundingBox.p1.x + 1, Height, m_BoundingBox.p2.z + 1, dirZP, a_Noise, a_RecursionLevel); break;
+ }
+}
+
+
+
+
+
+void cMineShaftStaircase::ProcessChunk(cChunkDesc & a_ChunkDesc)
+{
+ int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ cCuboid RelB(m_BoundingBox);
+ RelB.Move(-BlockX, 0, -BlockZ);
+ if (
+ (RelB.p1.x >= cChunkDef::Width) ||
+ (RelB.p1.z >= cChunkDef::Width) ||
+ (RelB.p2.x < 0) ||
+ (RelB.p2.z < 0)
+ )
+ {
+ // No intersection between this staircase and this chunk
+ return;
+ }
+
+ int SFloor = RelB.p1.y + ((m_Slope == sDown) ? 5 : 1);
+ int DFloor = RelB.p1.y + ((m_Slope == sDown) ? 1 : 5);
+ int Add = (m_Slope == sDown) ? -1 : 1;
+ int InitAdd = (m_Slope == sDown) ? -1 : 0;
+ cCuboid Box;
+ switch (m_Direction)
+ {
+ case dirXM:
+ {
+ a_ChunkDesc.FillRelCuboid (RelB.p2.x - 1, RelB.p2.x, SFloor, SFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p1.x + 1, DFloor, DFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p2.x - 1, RelB.p2.x, SFloor - 1, SFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p1.x + 1, DFloor - 1, DFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Assign(RelB.p2.x - 2, SFloor + InitAdd, RelB.p1.z, RelB.p2.x - 2, SFloor + 3 + InitAdd, RelB.p2.z);
+ for (int i = 0; i < 4; i++)
+ {
+ a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Move(-1, Add, 0);
+ }
+ break;
+ }
+
+ case dirXP:
+ {
+ a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p1.x + 1, SFloor, SFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid (RelB.p2.x - 1, RelB.p2.x, DFloor, DFloor + 2, RelB.p1.z, RelB.p2.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p1.x + 1, SFloor - 1, SFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p2.x - 1, RelB.p2.x, DFloor - 1, DFloor - 1, RelB.p1.z, RelB.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Assign(RelB.p1.x + 2, SFloor + InitAdd, RelB.p1.z, RelB.p1.x + 2, SFloor + 3 + InitAdd, RelB.p2.z);
+ for (int i = 0; i < 4; i++)
+ {
+ a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Move(1, Add, 0);
+ }
+ break;
+ }
+
+ case dirZM:
+ {
+ a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, SFloor, SFloor + 2, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, DFloor, DFloor + 2, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, SFloor - 1, SFloor - 1, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, DFloor - 1, DFloor - 1, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_PLANKS, 0);
+ Box.Assign(RelB.p1.x, SFloor + InitAdd, RelB.p2.z - 2, RelB.p2.x, SFloor + 3 + InitAdd, RelB.p2.z - 2);
+ for (int i = 0; i < 4; i++)
+ {
+ a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Move(0, Add, -1);
+ }
+ break;
+ }
+
+ case dirZP:
+ {
+ a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, SFloor, SFloor + 2, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FillRelCuboid (RelB.p1.x, RelB.p2.x, DFloor, DFloor + 2, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, SFloor - 1, SFloor - 1, RelB.p1.z, RelB.p1.z + 1, E_BLOCK_PLANKS, 0);
+ a_ChunkDesc.FloorRelCuboid(RelB.p1.x, RelB.p2.x, DFloor - 1, DFloor - 1, RelB.p2.z - 1, RelB.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Assign(RelB.p1.x, SFloor + InitAdd, RelB.p1.z + 2, RelB.p2.x, SFloor + 3 + InitAdd, RelB.p1.z + 2);
+ for (int i = 0; i < 4; i++)
+ {
+ a_ChunkDesc.FillRelCuboid(Box, E_BLOCK_AIR, 0);
+ a_ChunkDesc.FloorRelCuboid(Box.p1.x, Box.p2.x, Box.p1.y - 1, Box.p1.y - 1, Box.p1.z, Box.p2.z, E_BLOCK_PLANKS, 0);
+ Box.Move(0, Add, 1);
+ }
+ break;
+ }
+
+ } // switch (m_Direction)
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenMineShafts:
+
+cStructGenMineShafts::cStructGenMineShafts(
+ int a_Seed, int a_GridSize, int a_MaxSystemSize,
+ int a_ChanceCorridor, int a_ChanceCrossing, int a_ChanceStaircase
+) :
+ m_Noise(a_Seed),
+ m_GridSize(a_GridSize),
+ m_MaxSystemSize(a_MaxSystemSize),
+ m_ProbLevelCorridor(std::max(0, a_ChanceCorridor)),
+ m_ProbLevelCrossing(std::max(0, a_ChanceCorridor + a_ChanceCrossing)),
+ m_ProbLevelStaircase(std::max(0, a_ChanceCorridor + a_ChanceCrossing + a_ChanceStaircase))
+{
+}
+
+
+
+
+
+cStructGenMineShafts::~cStructGenMineShafts()
+{
+ ClearCache();
+}
+
+
+
+
+
+void cStructGenMineShafts::ClearCache(void)
+{
+ for (cMineShaftSystems::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ } // for itr - m_Cache[]
+ m_Cache.clear();
+}
+
+
+
+
+
+void cStructGenMineShafts::GetMineShaftSystemsForChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cStructGenMineShafts::cMineShaftSystems & a_MineShafts
+)
+{
+ int BaseX = a_ChunkX * cChunkDef::Width / m_GridSize;
+ int BaseZ = a_ChunkZ * cChunkDef::Width / m_GridSize;
+ if (BaseX < 0)
+ {
+ --BaseX;
+ }
+ if (BaseZ < 0)
+ {
+ --BaseZ;
+ }
+ BaseX -= NEIGHBORHOOD_SIZE / 2;
+ BaseZ -= NEIGHBORHOOD_SIZE / 2;
+
+ // Walk the cache, move each cave system that we want into a_Caves:
+ int StartX = BaseX * m_GridSize;
+ int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_GridSize;
+ int StartZ = BaseZ * m_GridSize;
+ int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_GridSize;
+ for (cMineShaftSystems::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
+ {
+ if (
+ ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
+ ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
+ )
+ {
+ // want
+ a_MineShafts.push_back(*itr);
+ itr = m_Cache.erase(itr);
+ }
+ else
+ {
+ // don't want
+ ++itr;
+ }
+ } // for itr - m_Cache[]
+
+ for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
+ {
+ int RealX = (BaseX + x) * m_GridSize;
+ for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
+ {
+ int RealZ = (BaseZ + z) * m_GridSize;
+ bool Found = false;
+ for (cMineShaftSystems::const_iterator itr = a_MineShafts.begin(), end = a_MineShafts.end(); itr != end; ++itr)
+ {
+ if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
+ {
+ Found = true;
+ break;
+ }
+ } // for itr - a_Mineshafts
+ if (!Found)
+ {
+ a_MineShafts.push_back(new cMineShaftSystem(RealX, RealZ, m_GridSize, m_MaxSystemSize, m_Noise, m_ProbLevelCorridor, m_ProbLevelCrossing, m_ProbLevelStaircase));
+ }
+ } // for z
+ } // for x
+
+ // Copy a_MineShafts into m_Cache to the beginning:
+ cMineShaftSystems MineShaftsCopy(a_MineShafts);
+ m_Cache.splice(m_Cache.begin(), MineShaftsCopy, MineShaftsCopy.begin(), MineShaftsCopy.end());
+
+ // Trim the cache if it's too long:
+ if (m_Cache.size() > 100)
+ {
+ cMineShaftSystems::iterator itr = m_Cache.begin();
+ std::advance(itr, 100);
+ for (cMineShaftSystems::iterator end = m_Cache.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ }
+ itr = m_Cache.begin();
+ std::advance(itr, 100);
+ m_Cache.erase(itr, m_Cache.end());
+ }
+}
+
+
+
+
+
+
+void cStructGenMineShafts::GenStructures(cChunkDesc & a_ChunkDesc)
+{
+ int ChunkX = a_ChunkDesc.GetChunkX();
+ int ChunkZ = a_ChunkDesc.GetChunkZ();
+ cMineShaftSystems MineShafts;
+ GetMineShaftSystemsForChunk(ChunkX, ChunkZ, MineShafts);
+ for (cMineShaftSystems::const_iterator itr = MineShafts.begin(); itr != MineShafts.end(); ++itr)
+ {
+ (*itr)->ProcessChunk(a_ChunkDesc);
+ } // for itr - MineShafts[]
+}
+
+
+
+
diff --git a/source/Generating/MineShafts.h b/source/Generating/MineShafts.h
index a2191b665..c53d3bc53 100644
--- a/source/Generating/MineShafts.h
+++ b/source/Generating/MineShafts.h
@@ -1,61 +1,61 @@
-
-// MineShafts.h
-
-// Declares the cStructGenMineShafts class representing the structure generator for abandoned mineshafts
-
-
-
-
-
-#pragma once
-
-#include "ComposableGenerator.h"
-#include "../Noise.h"
-
-
-
-
-
-class cStructGenMineShafts :
- public cStructureGen
-{
-public:
- cStructGenMineShafts(
- int a_Seed, int a_GridSize, int a_MaxSystemSize,
- int a_ChanceCorridor, int a_ChanceCrossing, int a_ChanceStaircase
- );
-
- virtual ~cStructGenMineShafts();
-
-protected:
- friend class cMineShaft;
- friend class cMineShaftDirtRoom;
- friend class cMineShaftCorridor;
- friend class cMineShaftCrossing;
- friend class cMineShaftStaircase;
- class cMineShaftSystem; // fwd: MineShafts.cpp
- typedef std::list<cMineShaftSystem *> cMineShaftSystems;
-
- cNoise m_Noise;
- int m_GridSize; ///< Average spacing of the systems
- int m_MaxSystemSize; ///< Maximum blcok size of a mineshaft system
- int m_ProbLevelCorridor; ///< Probability level of a branch object being the corridor
- int m_ProbLevelCrossing; ///< Probability level of a branch object being the crossing, minus Corridor
- int m_ProbLevelStaircase; ///< Probability level of a branch object being the staircase, minus Crossing
- cMineShaftSystems m_Cache; ///< Cache of the most recently used systems. MoveToFront used.
-
- /// Clears everything from the cache
- void ClearCache(void);
-
- /** Returns all systems that *may* intersect the given chunk.
- All the systems are valid until the next call to this function (which may delete some of the pointers).
- */
- void GetMineShaftSystemsForChunk(int a_ChunkX, int a_ChunkZ, cMineShaftSystems & a_MineShaftSystems);
-
- // cStructureGen overrides:
- virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
+
+// MineShafts.h
+
+// Declares the cStructGenMineShafts class representing the structure generator for abandoned mineshafts
+
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "../Noise.h"
+
+
+
+
+
+class cStructGenMineShafts :
+ public cStructureGen
+{
+public:
+ cStructGenMineShafts(
+ int a_Seed, int a_GridSize, int a_MaxSystemSize,
+ int a_ChanceCorridor, int a_ChanceCrossing, int a_ChanceStaircase
+ );
+
+ virtual ~cStructGenMineShafts();
+
+protected:
+ friend class cMineShaft;
+ friend class cMineShaftDirtRoom;
+ friend class cMineShaftCorridor;
+ friend class cMineShaftCrossing;
+ friend class cMineShaftStaircase;
+ class cMineShaftSystem; // fwd: MineShafts.cpp
+ typedef std::list<cMineShaftSystem *> cMineShaftSystems;
+
+ cNoise m_Noise;
+ int m_GridSize; ///< Average spacing of the systems
+ int m_MaxSystemSize; ///< Maximum blcok size of a mineshaft system
+ int m_ProbLevelCorridor; ///< Probability level of a branch object being the corridor
+ int m_ProbLevelCrossing; ///< Probability level of a branch object being the crossing, minus Corridor
+ int m_ProbLevelStaircase; ///< Probability level of a branch object being the staircase, minus Crossing
+ cMineShaftSystems m_Cache; ///< Cache of the most recently used systems. MoveToFront used.
+
+ /// Clears everything from the cache
+ void ClearCache(void);
+
+ /** Returns all systems that *may* intersect the given chunk.
+ All the systems are valid until the next call to this function (which may delete some of the pointers).
+ */
+ void GetMineShaftSystemsForChunk(int a_ChunkX, int a_ChunkZ, cMineShaftSystems & a_MineShaftSystems);
+
+ // cStructureGen overrides:
+ virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
diff --git a/source/Generating/Noise3DGenerator.cpp b/source/Generating/Noise3DGenerator.cpp
index dcf84abeb..f47c64430 100644
--- a/source/Generating/Noise3DGenerator.cpp
+++ b/source/Generating/Noise3DGenerator.cpp
@@ -1,581 +1,581 @@
-
-// Nosie3DGenerator.cpp
-
-// Generates terrain using 3D noise, rather than composing. Is a test.
-
-#include "Globals.h"
-#include "Noise3DGenerator.h"
-#include "../OSSupport/File.h"
-#include "../../iniFile/iniFile.h"
-#include "../LinearInterpolation.h"
-#include "../LinearUpscale.h"
-
-
-
-
-
-/*
-// Perform an automatic test of upscaling upon program start (use breakpoints to debug):
-
-class Test
-{
-public:
- Test(void)
- {
- DoTest1();
- DoTest2();
- }
-
-
- void DoTest1(void)
- {
- float In[3 * 3 * 3];
- for (int i = 0; i < ARRAYCOUNT(In); i++)
- {
- In[i] = (float)(i % 5);
- }
- Debug3DNoise(In, 3, 3, 3, "Upscale3D in");
- float Out[17 * 33 * 35];
- LinearUpscale3DArray(In, 3, 3, 3, Out, 8, 16, 17);
- Debug3DNoise(Out, 17, 33, 35, "Upscale3D test");
- }
-
-
- void DoTest2(void)
- {
- float In[3 * 3];
- for (int i = 0; i < ARRAYCOUNT(In); i++)
- {
- In[i] = (float)(i % 5);
- }
- Debug2DNoise(In, 3, 3, "Upscale2D in");
- float Out[17 * 33];
- LinearUpscale2DArray(In, 3, 3, Out, 8, 16);
- Debug2DNoise(Out, 17, 33, "Upscale2D test");
- }
-
-} gTest;
-//*/
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cNoise3DGenerator:
-
-cNoise3DGenerator::cNoise3DGenerator(cChunkGenerator & a_ChunkGenerator) :
- super(a_ChunkGenerator),
- m_Perlin(1000),
- m_Cubic(1000)
-{
- m_Perlin.AddOctave(1, (NOISE_DATATYPE)0.5);
- m_Perlin.AddOctave((NOISE_DATATYPE)0.5, 1);
- m_Perlin.AddOctave((NOISE_DATATYPE)0.5, 2);
-
- #if 0
- // DEBUG: Test the noise generation:
- // NOTE: In order to be able to run MCS with this code, you need to increase the default thread stack size
- // In MSVC, it is done in Project Settings -> Configuration Properties -> Linker -> System, set Stack reserve size to at least 64M
- m_SeaLevel = 62;
- m_HeightAmplification = 0;
- m_MidPoint = 75;
- m_FrequencyX = 4;
- m_FrequencyY = 4;
- m_FrequencyZ = 4;
- m_AirThreshold = 0.5;
-
- const int NumChunks = 4;
- NOISE_DATATYPE Noise[NumChunks][cChunkDef::Width * cChunkDef::Width * cChunkDef::Height];
- for (int x = 0; x < NumChunks; x++)
- {
- GenerateNoiseArray(x, 5, Noise[x]);
- }
-
- // Save in XY cuts:
- cFile f1;
- if (f1.Open("Test_XY.grab", cFile::fmWrite))
- {
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int y = 0; y < cChunkDef::Height; y++)
- {
- for (int i = 0; i < NumChunks; i++)
- {
- int idx = y * cChunkDef::Width + z * cChunkDef::Width * cChunkDef::Height;
- unsigned char buf[cChunkDef::Width];
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 32 * Noise[i][idx++]))));
- }
- f1.Write(buf, cChunkDef::Width);
- }
- } // for y
- } // for z
- } // if (XY file open)
-
- cFile f2;
- if (f2.Open("Test_XZ.grab", cFile::fmWrite))
- {
- for (int y = 0; y < cChunkDef::Height; y++)
- {
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int i = 0; i < NumChunks; i++)
- {
- int idx = y * cChunkDef::Width + z * cChunkDef::Width * cChunkDef::Height;
- unsigned char buf[cChunkDef::Width];
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 32 * Noise[i][idx++]))));
- }
- f2.Write(buf, cChunkDef::Width);
- }
- } // for z
- } // for y
- } // if (XZ file open)
- #endif // 0
-}
-
-
-
-
-
-cNoise3DGenerator::~cNoise3DGenerator()
-{
- // Nothing needed yet
-}
-
-
-
-
-
-void cNoise3DGenerator::Initialize(cWorld * a_World, cIniFile & a_IniFile)
-{
- m_World = a_World;
-
- // Params:
- m_SeaLevel = a_IniFile.GetValueSetI("Generator", "Noise3DSeaLevel", 62);
- m_HeightAmplification = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DHeightAmplification", 0);
- m_MidPoint = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DMidPoint", 75);
- m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyX", 8);
- m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyY", 8);
- m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyZ", 8);
- m_AirThreshold = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DAirThreshold", 0.5);
-}
-
-
-
-
-
-void cNoise3DGenerator::GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- for (int i = 0; i < ARRAYCOUNT(a_BiomeMap); i++)
- {
- a_BiomeMap[i] = biExtremeHills;
- }
-}
-
-
-
-
-
-void cNoise3DGenerator::DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc)
-{
- NOISE_DATATYPE Noise[17 * 257 * 17];
- GenerateNoiseArray(a_ChunkX, a_ChunkZ, Noise);
-
- // Output noise into chunk:
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int y = 0; y < cChunkDef::Height; y++)
- {
- int idx = z * 17 * 257 + y * 17;
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- NOISE_DATATYPE n = Noise[idx++];
- BLOCKTYPE BlockType;
- if (n > m_AirThreshold)
- {
- BlockType = (y > m_SeaLevel) ? E_BLOCK_AIR : E_BLOCK_STATIONARY_WATER;
- }
- else
- {
- BlockType = E_BLOCK_STONE;
- }
- a_ChunkDesc.SetBlockType(x, y, z, BlockType);
- }
- }
- }
-
- UpdateHeightmap(a_ChunkDesc);
- ComposeTerrain (a_ChunkDesc);
-}
-
-
-
-
-
-void cNoise3DGenerator::GenerateNoiseArray(int a_ChunkX, int a_ChunkZ, NOISE_DATATYPE * a_OutNoise)
-{
- NOISE_DATATYPE NoiseO[DIM_X * DIM_Y * DIM_Z]; // Output for the Perlin noise
- NOISE_DATATYPE NoiseW[DIM_X * DIM_Y * DIM_Z]; // Workspace that the noise calculation can use and trash
-
- // Our noise array has different layout, XZY, instead of regular chunk's XYZ, that's why the coords are "renamed"
- NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width)) / m_FrequencyX;
- NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((a_ChunkX + 1) * cChunkDef::Width) - 1) / m_FrequencyX;
- NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width)) / m_FrequencyZ;
- NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((a_ChunkZ + 1) * cChunkDef::Width) - 1) / m_FrequencyZ;
- NOISE_DATATYPE StartY = 0;
- NOISE_DATATYPE EndY = ((NOISE_DATATYPE)256) / m_FrequencyY;
-
- m_Perlin.Generate3D(NoiseO, DIM_X, DIM_Y, DIM_Z, StartX, EndX, StartY, EndY, StartZ, EndZ, NoiseW);
-
- // DEBUG: Debug3DNoise(NoiseO, DIM_X, DIM_Y, DIM_Z, Printf("Chunk_%d_%d_orig", a_ChunkX, a_ChunkZ));
-
- // Precalculate a "height" array:
- NOISE_DATATYPE Height[DIM_X * DIM_Z]; // Output for the cubic noise heightmap ("source")
- m_Cubic.Generate2D(Height, DIM_X, DIM_Z, StartX / 25, EndX / 25, StartZ / 25, EndZ / 25);
- for (int i = 0; i < ARRAYCOUNT(Height); i++)
- {
- Height[i] = abs(Height[i]) * m_HeightAmplification + 1;
- }
-
- // Modify the noise by height data:
- for (int y = 0; y < DIM_Y; y++)
- {
- NOISE_DATATYPE AddHeight = (y * UPSCALE_Y - m_MidPoint) / 20;
- AddHeight *= AddHeight * AddHeight;
- for (int z = 0; z < DIM_Z; z++)
- {
- NOISE_DATATYPE * CurRow = &(NoiseO[y * DIM_X + z * DIM_X * DIM_Y]);
- for (int x = 0; x < DIM_X; x++)
- {
- CurRow[x] += AddHeight / Height[x + DIM_X * z];
- }
- }
- }
-
- // DEBUG: Debug3DNoise(NoiseO, DIM_X, DIM_Y, DIM_Z, Printf("Chunk_%d_%d_hei", a_ChunkX, a_ChunkZ));
-
- // Upscale the Perlin noise into full-blown chunk dimensions:
- LinearUpscale3DArray(
- NoiseO, DIM_X, DIM_Y, DIM_Z,
- a_OutNoise, UPSCALE_X, UPSCALE_Y, UPSCALE_Z
- );
-
- // DEBUG: Debug3DNoise(a_OutNoise, 17, 257, 17, Printf("Chunk_%d_%d_lerp", a_ChunkX, a_ChunkZ));
-}
-
-
-
-
-
-void cNoise3DGenerator::UpdateHeightmap(cChunkDesc & a_ChunkDesc)
-{
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- for (int y = cChunkDef::Height - 1; y > 0; y--)
- {
- if (a_ChunkDesc.GetBlockType(x, y, z) != E_BLOCK_AIR)
- {
- a_ChunkDesc.SetHeight(x, z, y);
- break;
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
-
-void cNoise3DGenerator::ComposeTerrain(cChunkDesc & a_ChunkDesc)
-{
- // Make basic terrain composition:
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- int LastAir = a_ChunkDesc.GetHeight(x, z) + 1;
- bool HasHadWater = false;
- for (int y = LastAir - 1; y > 0; y--)
- {
- switch (a_ChunkDesc.GetBlockType(x, y, z))
- {
- case E_BLOCK_AIR:
- {
- LastAir = y;
- break;
- }
- case E_BLOCK_STONE:
- {
- if (LastAir - y > 3)
- {
- break;
- }
- if (HasHadWater)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND);
- }
- else
- {
- a_ChunkDesc.SetBlockType(x, y, z, (LastAir == y + 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT);
- }
- break;
- }
- case E_BLOCK_STATIONARY_WATER:
- {
- LastAir = y;
- HasHadWater = true;
- break;
- }
- } // switch (GetBlockType())
- } // for y
- a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK);
- } // for x
- } // for z
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cNoise3DComposable:
-
-cNoise3DComposable::cNoise3DComposable(int a_Seed) :
- m_Noise1(a_Seed + 1000),
- m_Noise2(a_Seed + 2000),
- m_Noise3(a_Seed + 3000)
-{
-}
-
-
-
-
-
-void cNoise3DComposable::Initialize(cIniFile & a_IniFile)
-{
- // Params:
- m_SeaLevel = a_IniFile.GetValueSetI("Generator", "Noise3DSeaLevel", 62);
- m_HeightAmplification = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DHeightAmplification", 0);
- m_MidPoint = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DMidPoint", 75);
- m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyX", 10);
- m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyY", 10);
- m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyZ", 10);
- m_AirThreshold = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DAirThreshold", 0.5);
-}
-
-
-
-
-
-void cNoise3DComposable::GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_ChunkZ)
-{
- if ((a_ChunkX == m_LastChunkX) && (a_ChunkZ == m_LastChunkZ))
- {
- // The noise for this chunk is already generated in m_Noise
- return;
- }
- m_LastChunkX = a_ChunkX;
- m_LastChunkZ = a_ChunkZ;
-
- // Upscaling parameters:
- const int UPSCALE_X = 8;
- const int UPSCALE_Y = 4;
- const int UPSCALE_Z = 8;
-
- const int DIM_X = 1 + cChunkDef::Width / UPSCALE_X;
- const int DIM_Y = 1 + cChunkDef::Height / UPSCALE_Y;
- const int DIM_Z = 1 + cChunkDef::Width / UPSCALE_Z;
-
- // Precalculate a "height" array:
- NOISE_DATATYPE Height[17 * 17]; // x + 17 * z
- for (int z = 0; z < 17; z += UPSCALE_Z)
- {
- NOISE_DATATYPE NoiseZ = ((NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width + z)) / m_FrequencyZ;
- for (int x = 0; x < 17; x += UPSCALE_X)
- {
- NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width + x)) / m_FrequencyX;
- NOISE_DATATYPE val = abs(m_Noise1.CubicNoise2D(NoiseX / 5, NoiseZ / 5)) * m_HeightAmplification + 1;
- Height[x + 17 * z] = val * val * val;
- }
- }
-
- int idx = 0;
- for (int y = 0; y < 257; y += UPSCALE_Y)
- {
- NOISE_DATATYPE NoiseY = ((NOISE_DATATYPE)y) / m_FrequencyY;
- NOISE_DATATYPE AddHeight = (y - m_MidPoint) / 20;
- AddHeight *= AddHeight * AddHeight;
- NOISE_DATATYPE * CurFloor = &(m_NoiseArray[y * 17 * 17]);
- for (int z = 0; z < 17; z += UPSCALE_Z)
- {
- NOISE_DATATYPE NoiseZ = ((NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width + z)) / m_FrequencyZ;
- for (int x = 0; x < 17; x += UPSCALE_X)
- {
- NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width + x)) / m_FrequencyX;
- CurFloor[x + 17 * z] =
- m_Noise1.CubicNoise3D(NoiseX, NoiseY, NoiseZ) * (NOISE_DATATYPE)0.5 +
- m_Noise2.CubicNoise3D(NoiseX / 2, NoiseY / 2, NoiseZ / 2) +
- m_Noise3.CubicNoise3D(NoiseX / 4, NoiseY / 4, NoiseZ / 4) * 2 +
- AddHeight / Height[x + 17 * z];
- }
- }
- // Linear-interpolate this XZ floor:
- LinearUpscale2DArrayInPlace(CurFloor, 17, 17, UPSCALE_X, UPSCALE_Z);
- }
-
- // Finish the 3D linear interpolation by interpolating between each XZ-floors on the Y axis
- for (int y = 1; y < cChunkDef::Height; y++)
- {
- if ((y % UPSCALE_Y) == 0)
- {
- // This is the interpolation source floor, already calculated
- continue;
- }
- int LoFloorY = (y / UPSCALE_Y) * UPSCALE_Y;
- int HiFloorY = LoFloorY + UPSCALE_Y;
- NOISE_DATATYPE * LoFloor = &(m_NoiseArray[LoFloorY * 17 * 17]);
- NOISE_DATATYPE * HiFloor = &(m_NoiseArray[HiFloorY * 17 * 17]);
- NOISE_DATATYPE * CurFloor = &(m_NoiseArray[y * 17 * 17]);
- NOISE_DATATYPE Ratio = ((NOISE_DATATYPE)(y % UPSCALE_Y)) / UPSCALE_Y;
- int idx = 0;
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- CurFloor[idx] = LoFloor[idx] + (HiFloor[idx] - LoFloor[idx]) * Ratio;
- idx += 1;
- }
- idx += 1; // Skipping one X column
- }
- }
-
- // The noise array is now fully interpolated
- /*
- // DEBUG: Output two images of the array, sliced by XY and XZ:
- cFile f1;
- if (f1.Open(Printf("Chunk_%d_%d_XY.raw", a_ChunkX, a_ChunkZ), cFile::fmWrite))
- {
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int y = 0; y < cChunkDef::Height; y++)
- {
- int idx = y * 17 * 17 + z * 17;
- unsigned char buf[16];
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 128 * m_Noise[idx++]))));
- }
- f1.Write(buf, 16);
- } // for y
- } // for z
- } // if (XY file open)
-
- cFile f2;
- if (f2.Open(Printf("Chunk_%d_%d_XZ.raw", a_ChunkX, a_ChunkZ), cFile::fmWrite))
- {
- for (int y = 0; y < cChunkDef::Height; y++)
- {
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- int idx = y * 17 * 17 + z * 17;
- unsigned char buf[16];
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 128 * m_Noise[idx++]))));
- }
- f2.Write(buf, 16);
- } // for z
- } // for y
- } // if (XZ file open)
- */
-}
-
-
-
-
-
-void cNoise3DComposable::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- GenerateNoiseArrayIfNeeded(a_ChunkX, a_ChunkZ);
-
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, m_SeaLevel);
- for (int y = cChunkDef::Height - 1; y > m_SeaLevel; y--)
- {
- if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= m_AirThreshold)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, y);
- break;
- }
- } // for y
- } // for x
- } // for z
-}
-
-
-
-
-
-void cNoise3DComposable::ComposeTerrain(cChunkDesc & a_ChunkDesc)
-{
- GenerateNoiseArrayIfNeeded(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ());
-
- a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0);
-
- // Make basic terrain composition:
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- int LastAir = a_ChunkDesc.GetHeight(x, z) + 1;
- bool HasHadWater = false;
- for (int y = LastAir; y < m_SeaLevel; y++)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER);
- }
- for (int y = LastAir - 1; y > 0; y--)
- {
- if (m_NoiseArray[x + 17 * z + 17 * 17 * y] > m_AirThreshold)
- {
- // "air" part
- LastAir = y;
- if (y < m_SeaLevel)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER);
- HasHadWater = true;
- }
- continue;
- }
- // "ground" part:
- if (LastAir - y > 4)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STONE);
- continue;
- }
- if (HasHadWater)
- {
- a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND);
- }
- else
- {
- a_ChunkDesc.SetBlockType(x, y, z, (LastAir == y + 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT);
- }
- } // for y
- a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK);
- } // for x
- } // for z
-}
-
-
-
-
+
+// Nosie3DGenerator.cpp
+
+// Generates terrain using 3D noise, rather than composing. Is a test.
+
+#include "Globals.h"
+#include "Noise3DGenerator.h"
+#include "../OSSupport/File.h"
+#include "../../iniFile/iniFile.h"
+#include "../LinearInterpolation.h"
+#include "../LinearUpscale.h"
+
+
+
+
+
+/*
+// Perform an automatic test of upscaling upon program start (use breakpoints to debug):
+
+class Test
+{
+public:
+ Test(void)
+ {
+ DoTest1();
+ DoTest2();
+ }
+
+
+ void DoTest1(void)
+ {
+ float In[3 * 3 * 3];
+ for (int i = 0; i < ARRAYCOUNT(In); i++)
+ {
+ In[i] = (float)(i % 5);
+ }
+ Debug3DNoise(In, 3, 3, 3, "Upscale3D in");
+ float Out[17 * 33 * 35];
+ LinearUpscale3DArray(In, 3, 3, 3, Out, 8, 16, 17);
+ Debug3DNoise(Out, 17, 33, 35, "Upscale3D test");
+ }
+
+
+ void DoTest2(void)
+ {
+ float In[3 * 3];
+ for (int i = 0; i < ARRAYCOUNT(In); i++)
+ {
+ In[i] = (float)(i % 5);
+ }
+ Debug2DNoise(In, 3, 3, "Upscale2D in");
+ float Out[17 * 33];
+ LinearUpscale2DArray(In, 3, 3, Out, 8, 16);
+ Debug2DNoise(Out, 17, 33, "Upscale2D test");
+ }
+
+} gTest;
+//*/
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cNoise3DGenerator:
+
+cNoise3DGenerator::cNoise3DGenerator(cChunkGenerator & a_ChunkGenerator) :
+ super(a_ChunkGenerator),
+ m_Perlin(1000),
+ m_Cubic(1000)
+{
+ m_Perlin.AddOctave(1, (NOISE_DATATYPE)0.5);
+ m_Perlin.AddOctave((NOISE_DATATYPE)0.5, 1);
+ m_Perlin.AddOctave((NOISE_DATATYPE)0.5, 2);
+
+ #if 0
+ // DEBUG: Test the noise generation:
+ // NOTE: In order to be able to run MCS with this code, you need to increase the default thread stack size
+ // In MSVC, it is done in Project Settings -> Configuration Properties -> Linker -> System, set Stack reserve size to at least 64M
+ m_SeaLevel = 62;
+ m_HeightAmplification = 0;
+ m_MidPoint = 75;
+ m_FrequencyX = 4;
+ m_FrequencyY = 4;
+ m_FrequencyZ = 4;
+ m_AirThreshold = 0.5;
+
+ const int NumChunks = 4;
+ NOISE_DATATYPE Noise[NumChunks][cChunkDef::Width * cChunkDef::Width * cChunkDef::Height];
+ for (int x = 0; x < NumChunks; x++)
+ {
+ GenerateNoiseArray(x, 5, Noise[x]);
+ }
+
+ // Save in XY cuts:
+ cFile f1;
+ if (f1.Open("Test_XY.grab", cFile::fmWrite))
+ {
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int y = 0; y < cChunkDef::Height; y++)
+ {
+ for (int i = 0; i < NumChunks; i++)
+ {
+ int idx = y * cChunkDef::Width + z * cChunkDef::Width * cChunkDef::Height;
+ unsigned char buf[cChunkDef::Width];
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 32 * Noise[i][idx++]))));
+ }
+ f1.Write(buf, cChunkDef::Width);
+ }
+ } // for y
+ } // for z
+ } // if (XY file open)
+
+ cFile f2;
+ if (f2.Open("Test_XZ.grab", cFile::fmWrite))
+ {
+ for (int y = 0; y < cChunkDef::Height; y++)
+ {
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int i = 0; i < NumChunks; i++)
+ {
+ int idx = y * cChunkDef::Width + z * cChunkDef::Width * cChunkDef::Height;
+ unsigned char buf[cChunkDef::Width];
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 32 * Noise[i][idx++]))));
+ }
+ f2.Write(buf, cChunkDef::Width);
+ }
+ } // for z
+ } // for y
+ } // if (XZ file open)
+ #endif // 0
+}
+
+
+
+
+
+cNoise3DGenerator::~cNoise3DGenerator()
+{
+ // Nothing needed yet
+}
+
+
+
+
+
+void cNoise3DGenerator::Initialize(cWorld * a_World, cIniFile & a_IniFile)
+{
+ m_World = a_World;
+
+ // Params:
+ m_SeaLevel = a_IniFile.GetValueSetI("Generator", "Noise3DSeaLevel", 62);
+ m_HeightAmplification = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DHeightAmplification", 0);
+ m_MidPoint = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DMidPoint", 75);
+ m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyX", 8);
+ m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyY", 8);
+ m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyZ", 8);
+ m_AirThreshold = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DAirThreshold", 0.5);
+}
+
+
+
+
+
+void cNoise3DGenerator::GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
+{
+ for (int i = 0; i < ARRAYCOUNT(a_BiomeMap); i++)
+ {
+ a_BiomeMap[i] = biExtremeHills;
+ }
+}
+
+
+
+
+
+void cNoise3DGenerator::DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc)
+{
+ NOISE_DATATYPE Noise[17 * 257 * 17];
+ GenerateNoiseArray(a_ChunkX, a_ChunkZ, Noise);
+
+ // Output noise into chunk:
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int y = 0; y < cChunkDef::Height; y++)
+ {
+ int idx = z * 17 * 257 + y * 17;
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ NOISE_DATATYPE n = Noise[idx++];
+ BLOCKTYPE BlockType;
+ if (n > m_AirThreshold)
+ {
+ BlockType = (y > m_SeaLevel) ? E_BLOCK_AIR : E_BLOCK_STATIONARY_WATER;
+ }
+ else
+ {
+ BlockType = E_BLOCK_STONE;
+ }
+ a_ChunkDesc.SetBlockType(x, y, z, BlockType);
+ }
+ }
+ }
+
+ UpdateHeightmap(a_ChunkDesc);
+ ComposeTerrain (a_ChunkDesc);
+}
+
+
+
+
+
+void cNoise3DGenerator::GenerateNoiseArray(int a_ChunkX, int a_ChunkZ, NOISE_DATATYPE * a_OutNoise)
+{
+ NOISE_DATATYPE NoiseO[DIM_X * DIM_Y * DIM_Z]; // Output for the Perlin noise
+ NOISE_DATATYPE NoiseW[DIM_X * DIM_Y * DIM_Z]; // Workspace that the noise calculation can use and trash
+
+ // Our noise array has different layout, XZY, instead of regular chunk's XYZ, that's why the coords are "renamed"
+ NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width)) / m_FrequencyX;
+ NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((a_ChunkX + 1) * cChunkDef::Width) - 1) / m_FrequencyX;
+ NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width)) / m_FrequencyZ;
+ NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((a_ChunkZ + 1) * cChunkDef::Width) - 1) / m_FrequencyZ;
+ NOISE_DATATYPE StartY = 0;
+ NOISE_DATATYPE EndY = ((NOISE_DATATYPE)256) / m_FrequencyY;
+
+ m_Perlin.Generate3D(NoiseO, DIM_X, DIM_Y, DIM_Z, StartX, EndX, StartY, EndY, StartZ, EndZ, NoiseW);
+
+ // DEBUG: Debug3DNoise(NoiseO, DIM_X, DIM_Y, DIM_Z, Printf("Chunk_%d_%d_orig", a_ChunkX, a_ChunkZ));
+
+ // Precalculate a "height" array:
+ NOISE_DATATYPE Height[DIM_X * DIM_Z]; // Output for the cubic noise heightmap ("source")
+ m_Cubic.Generate2D(Height, DIM_X, DIM_Z, StartX / 25, EndX / 25, StartZ / 25, EndZ / 25);
+ for (int i = 0; i < ARRAYCOUNT(Height); i++)
+ {
+ Height[i] = abs(Height[i]) * m_HeightAmplification + 1;
+ }
+
+ // Modify the noise by height data:
+ for (int y = 0; y < DIM_Y; y++)
+ {
+ NOISE_DATATYPE AddHeight = (y * UPSCALE_Y - m_MidPoint) / 20;
+ AddHeight *= AddHeight * AddHeight;
+ for (int z = 0; z < DIM_Z; z++)
+ {
+ NOISE_DATATYPE * CurRow = &(NoiseO[y * DIM_X + z * DIM_X * DIM_Y]);
+ for (int x = 0; x < DIM_X; x++)
+ {
+ CurRow[x] += AddHeight / Height[x + DIM_X * z];
+ }
+ }
+ }
+
+ // DEBUG: Debug3DNoise(NoiseO, DIM_X, DIM_Y, DIM_Z, Printf("Chunk_%d_%d_hei", a_ChunkX, a_ChunkZ));
+
+ // Upscale the Perlin noise into full-blown chunk dimensions:
+ LinearUpscale3DArray(
+ NoiseO, DIM_X, DIM_Y, DIM_Z,
+ a_OutNoise, UPSCALE_X, UPSCALE_Y, UPSCALE_Z
+ );
+
+ // DEBUG: Debug3DNoise(a_OutNoise, 17, 257, 17, Printf("Chunk_%d_%d_lerp", a_ChunkX, a_ChunkZ));
+}
+
+
+
+
+
+void cNoise3DGenerator::UpdateHeightmap(cChunkDesc & a_ChunkDesc)
+{
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ for (int y = cChunkDef::Height - 1; y > 0; y--)
+ {
+ if (a_ChunkDesc.GetBlockType(x, y, z) != E_BLOCK_AIR)
+ {
+ a_ChunkDesc.SetHeight(x, z, y);
+ break;
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
+
+void cNoise3DGenerator::ComposeTerrain(cChunkDesc & a_ChunkDesc)
+{
+ // Make basic terrain composition:
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ int LastAir = a_ChunkDesc.GetHeight(x, z) + 1;
+ bool HasHadWater = false;
+ for (int y = LastAir - 1; y > 0; y--)
+ {
+ switch (a_ChunkDesc.GetBlockType(x, y, z))
+ {
+ case E_BLOCK_AIR:
+ {
+ LastAir = y;
+ break;
+ }
+ case E_BLOCK_STONE:
+ {
+ if (LastAir - y > 3)
+ {
+ break;
+ }
+ if (HasHadWater)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND);
+ }
+ else
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, (LastAir == y + 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT);
+ }
+ break;
+ }
+ case E_BLOCK_STATIONARY_WATER:
+ {
+ LastAir = y;
+ HasHadWater = true;
+ break;
+ }
+ } // switch (GetBlockType())
+ } // for y
+ a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK);
+ } // for x
+ } // for z
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cNoise3DComposable:
+
+cNoise3DComposable::cNoise3DComposable(int a_Seed) :
+ m_Noise1(a_Seed + 1000),
+ m_Noise2(a_Seed + 2000),
+ m_Noise3(a_Seed + 3000)
+{
+}
+
+
+
+
+
+void cNoise3DComposable::Initialize(cIniFile & a_IniFile)
+{
+ // Params:
+ m_SeaLevel = a_IniFile.GetValueSetI("Generator", "Noise3DSeaLevel", 62);
+ m_HeightAmplification = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DHeightAmplification", 0);
+ m_MidPoint = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DMidPoint", 75);
+ m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyX", 10);
+ m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyY", 10);
+ m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DFrequencyZ", 10);
+ m_AirThreshold = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "Noise3DAirThreshold", 0.5);
+}
+
+
+
+
+
+void cNoise3DComposable::GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_ChunkZ)
+{
+ if ((a_ChunkX == m_LastChunkX) && (a_ChunkZ == m_LastChunkZ))
+ {
+ // The noise for this chunk is already generated in m_Noise
+ return;
+ }
+ m_LastChunkX = a_ChunkX;
+ m_LastChunkZ = a_ChunkZ;
+
+ // Upscaling parameters:
+ const int UPSCALE_X = 8;
+ const int UPSCALE_Y = 4;
+ const int UPSCALE_Z = 8;
+
+ const int DIM_X = 1 + cChunkDef::Width / UPSCALE_X;
+ const int DIM_Y = 1 + cChunkDef::Height / UPSCALE_Y;
+ const int DIM_Z = 1 + cChunkDef::Width / UPSCALE_Z;
+
+ // Precalculate a "height" array:
+ NOISE_DATATYPE Height[17 * 17]; // x + 17 * z
+ for (int z = 0; z < 17; z += UPSCALE_Z)
+ {
+ NOISE_DATATYPE NoiseZ = ((NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width + z)) / m_FrequencyZ;
+ for (int x = 0; x < 17; x += UPSCALE_X)
+ {
+ NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width + x)) / m_FrequencyX;
+ NOISE_DATATYPE val = abs(m_Noise1.CubicNoise2D(NoiseX / 5, NoiseZ / 5)) * m_HeightAmplification + 1;
+ Height[x + 17 * z] = val * val * val;
+ }
+ }
+
+ int idx = 0;
+ for (int y = 0; y < 257; y += UPSCALE_Y)
+ {
+ NOISE_DATATYPE NoiseY = ((NOISE_DATATYPE)y) / m_FrequencyY;
+ NOISE_DATATYPE AddHeight = (y - m_MidPoint) / 20;
+ AddHeight *= AddHeight * AddHeight;
+ NOISE_DATATYPE * CurFloor = &(m_NoiseArray[y * 17 * 17]);
+ for (int z = 0; z < 17; z += UPSCALE_Z)
+ {
+ NOISE_DATATYPE NoiseZ = ((NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width + z)) / m_FrequencyZ;
+ for (int x = 0; x < 17; x += UPSCALE_X)
+ {
+ NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width + x)) / m_FrequencyX;
+ CurFloor[x + 17 * z] =
+ m_Noise1.CubicNoise3D(NoiseX, NoiseY, NoiseZ) * (NOISE_DATATYPE)0.5 +
+ m_Noise2.CubicNoise3D(NoiseX / 2, NoiseY / 2, NoiseZ / 2) +
+ m_Noise3.CubicNoise3D(NoiseX / 4, NoiseY / 4, NoiseZ / 4) * 2 +
+ AddHeight / Height[x + 17 * z];
+ }
+ }
+ // Linear-interpolate this XZ floor:
+ LinearUpscale2DArrayInPlace(CurFloor, 17, 17, UPSCALE_X, UPSCALE_Z);
+ }
+
+ // Finish the 3D linear interpolation by interpolating between each XZ-floors on the Y axis
+ for (int y = 1; y < cChunkDef::Height; y++)
+ {
+ if ((y % UPSCALE_Y) == 0)
+ {
+ // This is the interpolation source floor, already calculated
+ continue;
+ }
+ int LoFloorY = (y / UPSCALE_Y) * UPSCALE_Y;
+ int HiFloorY = LoFloorY + UPSCALE_Y;
+ NOISE_DATATYPE * LoFloor = &(m_NoiseArray[LoFloorY * 17 * 17]);
+ NOISE_DATATYPE * HiFloor = &(m_NoiseArray[HiFloorY * 17 * 17]);
+ NOISE_DATATYPE * CurFloor = &(m_NoiseArray[y * 17 * 17]);
+ NOISE_DATATYPE Ratio = ((NOISE_DATATYPE)(y % UPSCALE_Y)) / UPSCALE_Y;
+ int idx = 0;
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ CurFloor[idx] = LoFloor[idx] + (HiFloor[idx] - LoFloor[idx]) * Ratio;
+ idx += 1;
+ }
+ idx += 1; // Skipping one X column
+ }
+ }
+
+ // The noise array is now fully interpolated
+ /*
+ // DEBUG: Output two images of the array, sliced by XY and XZ:
+ cFile f1;
+ if (f1.Open(Printf("Chunk_%d_%d_XY.raw", a_ChunkX, a_ChunkZ), cFile::fmWrite))
+ {
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int y = 0; y < cChunkDef::Height; y++)
+ {
+ int idx = y * 17 * 17 + z * 17;
+ unsigned char buf[16];
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 128 * m_Noise[idx++]))));
+ }
+ f1.Write(buf, 16);
+ } // for y
+ } // for z
+ } // if (XY file open)
+
+ cFile f2;
+ if (f2.Open(Printf("Chunk_%d_%d_XZ.raw", a_ChunkX, a_ChunkZ), cFile::fmWrite))
+ {
+ for (int y = 0; y < cChunkDef::Height; y++)
+ {
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ int idx = y * 17 * 17 + z * 17;
+ unsigned char buf[16];
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ buf[x] = (unsigned char)(std::min(256, std::max(0, (int)(128 + 128 * m_Noise[idx++]))));
+ }
+ f2.Write(buf, 16);
+ } // for z
+ } // for y
+ } // if (XZ file open)
+ */
+}
+
+
+
+
+
+void cNoise3DComposable::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
+{
+ GenerateNoiseArrayIfNeeded(a_ChunkX, a_ChunkZ);
+
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ cChunkDef::SetHeight(a_HeightMap, x, z, m_SeaLevel);
+ for (int y = cChunkDef::Height - 1; y > m_SeaLevel; y--)
+ {
+ if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= m_AirThreshold)
+ {
+ cChunkDef::SetHeight(a_HeightMap, x, z, y);
+ break;
+ }
+ } // for y
+ } // for x
+ } // for z
+}
+
+
+
+
+
+void cNoise3DComposable::ComposeTerrain(cChunkDesc & a_ChunkDesc)
+{
+ GenerateNoiseArrayIfNeeded(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ());
+
+ a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0);
+
+ // Make basic terrain composition:
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ int LastAir = a_ChunkDesc.GetHeight(x, z) + 1;
+ bool HasHadWater = false;
+ for (int y = LastAir; y < m_SeaLevel; y++)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER);
+ }
+ for (int y = LastAir - 1; y > 0; y--)
+ {
+ if (m_NoiseArray[x + 17 * z + 17 * 17 * y] > m_AirThreshold)
+ {
+ // "air" part
+ LastAir = y;
+ if (y < m_SeaLevel)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER);
+ HasHadWater = true;
+ }
+ continue;
+ }
+ // "ground" part:
+ if (LastAir - y > 4)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STONE);
+ continue;
+ }
+ if (HasHadWater)
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND);
+ }
+ else
+ {
+ a_ChunkDesc.SetBlockType(x, y, z, (LastAir == y + 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT);
+ }
+ } // for y
+ a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK);
+ } // for x
+ } // for z
+}
+
+
+
+
diff --git a/source/Generating/Noise3DGenerator.h b/source/Generating/Noise3DGenerator.h
index b23e8645b..0d211cddc 100644
--- a/source/Generating/Noise3DGenerator.h
+++ b/source/Generating/Noise3DGenerator.h
@@ -1,106 +1,106 @@
-
-// Noise3DGenerator.h
-
-// Generates terrain using 3D noise, rather than composing. Is a test.
-
-
-
-
-#pragma once
-
-#include "ComposableGenerator.h"
-#include "../Noise.h"
-
-
-
-
-
-class cNoise3DGenerator :
- public cChunkGenerator::cGenerator
-{
- typedef cChunkGenerator::cGenerator super;
-
-public:
- cNoise3DGenerator(cChunkGenerator & a_ChunkGenerator);
- virtual ~cNoise3DGenerator();
-
- virtual void Initialize(cWorld * a_World, cIniFile & a_IniFile) override;
- virtual void GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override;
- virtual void DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc) override;
-
-protected:
- // Linear interpolation step sizes, must be divisors of cChunkDef::Width and cChunkDef::Height, respectively:
- static const int UPSCALE_X = 8;
- static const int UPSCALE_Y = 4;
- static const int UPSCALE_Z = 8;
-
- // Linear interpolation buffer dimensions, calculated from the step sizes:
- static const int DIM_X = 1 + cChunkDef::Width / UPSCALE_X;
- static const int DIM_Y = 1 + cChunkDef::Height / UPSCALE_Y;
- static const int DIM_Z = 1 + cChunkDef::Width / UPSCALE_Z;
-
- cPerlinNoise m_Perlin; // The base 3D noise source for the actual composition
- cCubicNoise m_Cubic; // The noise used for heightmap directing
-
- int m_SeaLevel;
- NOISE_DATATYPE m_HeightAmplification;
- NOISE_DATATYPE m_MidPoint; // Where the vertical "center" of the noise should be
- NOISE_DATATYPE m_FrequencyX;
- NOISE_DATATYPE m_FrequencyY;
- NOISE_DATATYPE m_FrequencyZ;
- NOISE_DATATYPE m_AirThreshold;
-
- /// Generates the 3D noise array used for terrain generation; a_Noise is of ChunkData-size
- void GenerateNoiseArray(int a_ChunkX, int a_ChunkZ, NOISE_DATATYPE * a_Noise);
-
- /// Updates heightmap based on the chunk's contents
- void UpdateHeightmap(cChunkDesc & a_ChunkDesc);
-
- /// Composes terrain - adds dirt, grass and sand
- void ComposeTerrain(cChunkDesc & a_ChunkDesc);
-} ;
-
-
-
-
-
-class cNoise3DComposable :
- public cTerrainHeightGen,
- public cTerrainCompositionGen
-{
-public:
- cNoise3DComposable(int a_Seed);
-
- void Initialize(cIniFile & a_IniFile);
-
-protected:
- cNoise m_Noise1;
- cNoise m_Noise2;
- cNoise m_Noise3;
-
- int m_SeaLevel;
- NOISE_DATATYPE m_HeightAmplification;
- NOISE_DATATYPE m_MidPoint; // Where the vertical "center" of the noise should be
- NOISE_DATATYPE m_FrequencyX;
- NOISE_DATATYPE m_FrequencyY;
- NOISE_DATATYPE m_FrequencyZ;
- NOISE_DATATYPE m_AirThreshold;
-
- int m_LastChunkX;
- int m_LastChunkZ;
- NOISE_DATATYPE m_NoiseArray[17 * 17 * 257]; // x + 17 * z + 17 * 17 * y
-
-
- /// Generates the 3D noise array used for terrain generation, unless the LastChunk coords are equal to coords given
- void GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_ChunkZ);
-
- // cTerrainHeightGen overrides:
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-
- // cTerrainCompositionGen overrides:
- virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
+
+// Noise3DGenerator.h
+
+// Generates terrain using 3D noise, rather than composing. Is a test.
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "../Noise.h"
+
+
+
+
+
+class cNoise3DGenerator :
+ public cChunkGenerator::cGenerator
+{
+ typedef cChunkGenerator::cGenerator super;
+
+public:
+ cNoise3DGenerator(cChunkGenerator & a_ChunkGenerator);
+ virtual ~cNoise3DGenerator();
+
+ virtual void Initialize(cWorld * a_World, cIniFile & a_IniFile) override;
+ virtual void GenerateBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override;
+ virtual void DoGenerate(int a_ChunkX, int a_ChunkZ, cChunkDesc & a_ChunkDesc) override;
+
+protected:
+ // Linear interpolation step sizes, must be divisors of cChunkDef::Width and cChunkDef::Height, respectively:
+ static const int UPSCALE_X = 8;
+ static const int UPSCALE_Y = 4;
+ static const int UPSCALE_Z = 8;
+
+ // Linear interpolation buffer dimensions, calculated from the step sizes:
+ static const int DIM_X = 1 + cChunkDef::Width / UPSCALE_X;
+ static const int DIM_Y = 1 + cChunkDef::Height / UPSCALE_Y;
+ static const int DIM_Z = 1 + cChunkDef::Width / UPSCALE_Z;
+
+ cPerlinNoise m_Perlin; // The base 3D noise source for the actual composition
+ cCubicNoise m_Cubic; // The noise used for heightmap directing
+
+ int m_SeaLevel;
+ NOISE_DATATYPE m_HeightAmplification;
+ NOISE_DATATYPE m_MidPoint; // Where the vertical "center" of the noise should be
+ NOISE_DATATYPE m_FrequencyX;
+ NOISE_DATATYPE m_FrequencyY;
+ NOISE_DATATYPE m_FrequencyZ;
+ NOISE_DATATYPE m_AirThreshold;
+
+ /// Generates the 3D noise array used for terrain generation; a_Noise is of ChunkData-size
+ void GenerateNoiseArray(int a_ChunkX, int a_ChunkZ, NOISE_DATATYPE * a_Noise);
+
+ /// Updates heightmap based on the chunk's contents
+ void UpdateHeightmap(cChunkDesc & a_ChunkDesc);
+
+ /// Composes terrain - adds dirt, grass and sand
+ void ComposeTerrain(cChunkDesc & a_ChunkDesc);
+} ;
+
+
+
+
+
+class cNoise3DComposable :
+ public cTerrainHeightGen,
+ public cTerrainCompositionGen
+{
+public:
+ cNoise3DComposable(int a_Seed);
+
+ void Initialize(cIniFile & a_IniFile);
+
+protected:
+ cNoise m_Noise1;
+ cNoise m_Noise2;
+ cNoise m_Noise3;
+
+ int m_SeaLevel;
+ NOISE_DATATYPE m_HeightAmplification;
+ NOISE_DATATYPE m_MidPoint; // Where the vertical "center" of the noise should be
+ NOISE_DATATYPE m_FrequencyX;
+ NOISE_DATATYPE m_FrequencyY;
+ NOISE_DATATYPE m_FrequencyZ;
+ NOISE_DATATYPE m_AirThreshold;
+
+ int m_LastChunkX;
+ int m_LastChunkZ;
+ NOISE_DATATYPE m_NoiseArray[17 * 17 * 257]; // x + 17 * z + 17 * 17 * y
+
+
+ /// Generates the 3D noise array used for terrain generation, unless the LastChunk coords are equal to coords given
+ void GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_ChunkZ);
+
+ // cTerrainHeightGen overrides:
+ virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
+
+ // cTerrainCompositionGen overrides:
+ virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
diff --git a/source/Generating/Ravines.cpp b/source/Generating/Ravines.cpp
index 94d91c0bb..6413b963b 100644
--- a/source/Generating/Ravines.cpp
+++ b/source/Generating/Ravines.cpp
@@ -1,531 +1,531 @@
-
-// Ravines.cpp
-
-// Implements the cStructGenRavines class representing the ravine structure generator
-
-#include "Globals.h"
-#include "Ravines.h"
-
-
-
-
-/// How many ravines in each direction are generated for a given chunk. Must be an even number
-static const int NEIGHBORHOOD_SIZE = 8;
-
-static const int NUM_RAVINE_POINTS = 4;
-
-
-
-
-
-struct cRavDefPoint
-{
- int m_BlockX;
- int m_BlockZ;
- int m_Radius;
- int m_Top;
- int m_Bottom;
-
- cRavDefPoint(int a_BlockX, int a_BlockZ, int a_Radius, int a_Top, int a_Bottom) :
- m_BlockX(a_BlockX),
- m_BlockZ(a_BlockZ),
- m_Radius(a_Radius),
- m_Top (a_Top),
- m_Bottom(a_Bottom)
- {
- }
-} ;
-
-typedef std::vector<cRavDefPoint> cRavDefPoints;
-
-
-
-
-
-class cStructGenRavines::cRavine
-{
- cRavDefPoints m_Points;
-
- /// Generates the shaping defpoints for the ravine, based on the ravine block coords and noise
- void GenerateBaseDefPoints(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise);
-
- /// Refines (adds and smooths) defpoints from a_Src into a_Dst
- void RefineDefPoints(const cRavDefPoints & a_Src, cRavDefPoints & a_Dst);
-
- /// Does one round of smoothing, two passes of RefineDefPoints()
- void Smooth(void);
-
- /// Linearly interpolates the points so that the maximum distance between two neighbors is max 1 block
- void FinishLinear(void);
-
-public:
- // Coords for which the ravine was generated (not necessarily the center)
- int m_BlockX;
- int m_BlockZ;
-
- cRavine(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise);
-
- /// Carves the ravine into the chunk specified
- void ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
- );
-
- #ifdef _DEBUG
- /// Exports itself as a SVG line definition
- AString ExportAsSVG(int a_Color, int a_OffsetX = 0, int a_OffsetZ = 0) const;
- #endif // _DEBUG
-} ;
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenRavines:
-
-cStructGenRavines::cStructGenRavines(int a_Seed, int a_Size) :
- m_Noise(a_Seed),
- m_Size(a_Size)
-{
-}
-
-
-
-
-
-cStructGenRavines::~cStructGenRavines()
-{
- ClearCache();
-}
-
-
-
-
-
-void cStructGenRavines::ClearCache(void)
-{
- for (cRavines::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- } // for itr - m_Cache[]
- m_Cache.clear();
-}
-
-
-
-
-
-void cStructGenRavines::GenStructures(cChunkDesc & a_ChunkDesc)
-{
- int ChunkX = a_ChunkDesc.GetChunkX();
- int ChunkZ = a_ChunkDesc.GetChunkZ();
- cRavines Ravines;
- GetRavinesForChunk(ChunkX, ChunkZ, Ravines);
- for (cRavines::const_iterator itr = Ravines.begin(), end = Ravines.end(); itr != end; ++itr)
- {
- (*itr)->ProcessChunk(ChunkX, ChunkZ, a_ChunkDesc.GetBlockTypes(), a_ChunkDesc.GetHeightMap());
- } // for itr - Ravines[]
-}
-
-
-
-
-
-void cStructGenRavines::GetRavinesForChunk(int a_ChunkX, int a_ChunkZ, cStructGenRavines::cRavines & a_Ravines)
-{
- int BaseX = a_ChunkX * cChunkDef::Width / m_Size;
- int BaseZ = a_ChunkZ * cChunkDef::Width / m_Size;
- if (BaseX < 0)
- {
- --BaseX;
- }
- if (BaseZ < 0)
- {
- --BaseZ;
- }
- BaseX -= 4;
- BaseZ -= 4;
-
- // Walk the cache, move each ravine that we want into a_Ravines:
- int StartX = BaseX * m_Size;
- int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_Size;
- int StartZ = BaseZ * m_Size;
- int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_Size;
- for (cRavines::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
- {
- if (
- ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
- ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
- )
- {
- // want
- a_Ravines.push_back(*itr);
- itr = m_Cache.erase(itr);
- }
- else
- {
- // don't want
- ++itr;
- }
- } // for itr - m_Cache[]
-
- for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
- {
- int RealX = (BaseX + x) * m_Size;
- for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
- {
- int RealZ = (BaseZ + z) * m_Size;
- bool Found = false;
- for (cRavines::const_iterator itr = a_Ravines.begin(), end = a_Ravines.end(); itr != end; ++itr)
- {
- if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
- {
- Found = true;
- break;
- }
- }
- if (!Found)
- {
- a_Ravines.push_back(new cRavine(RealX, RealZ, m_Size, m_Noise));
- }
- }
- }
-
- // Copy a_Ravines into m_Cache to the beginning:
- cRavines RavinesCopy(a_Ravines);
- m_Cache.splice(m_Cache.begin(), RavinesCopy, RavinesCopy.begin(), RavinesCopy.end());
-
- // Trim the cache if it's too long:
- if (m_Cache.size() > 100)
- {
- cRavines::iterator itr = m_Cache.begin();
- std::advance(itr, 100);
- for (cRavines::iterator end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- }
- itr = m_Cache.begin();
- std::advance(itr, 100);
- m_Cache.erase(itr, m_Cache.end());
- }
-
- /*
- #ifdef _DEBUG
- // DEBUG: Export as SVG into a file specific for the chunk, for visual verification:
- AString SVG;
- SVG.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"1024\" height = \"1024\">\n");
- for (cRavines::const_iterator itr = a_Ravines.begin(), end = a_Ravines.end(); itr != end; ++itr)
- {
- SVG.append((*itr)->ExportAsSVG(0, 512, 512));
- }
- SVG.append("</svg>\n");
-
- AString fnam;
- Printf(fnam, "ravines\\%03d_%03d.svg", a_ChunkX, a_ChunkZ);
- cFile File(fnam, cFile::fmWrite);
- File.Write(SVG.c_str(), SVG.size());
- #endif // _DEBUG
- //*/
-}
-
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cStructGenRavines::cRavine
-
-cStructGenRavines::cRavine::cRavine(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise) :
- m_BlockX(a_BlockX),
- m_BlockZ(a_BlockZ)
-{
- // Calculate the ravine shape-defining points:
- GenerateBaseDefPoints(a_BlockX, a_BlockZ, a_Size, a_Noise);
-
- // Smooth the ravine. A two passes are needed:
- Smooth();
- Smooth();
-
- // Linearly interpolate the neighbors so that they're close enough together:
- FinishLinear();
-}
-
-
-
-
-
-void cStructGenRavines::cRavine::GenerateBaseDefPoints(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise)
-{
- // Modify the size slightly to have different-sized ravines (1/2 to 1/1 of a_Size):
- a_Size = (512 + ((a_Noise.IntNoise3DInt(19 * a_BlockX, 11 * a_BlockZ, a_BlockX + a_BlockZ) / 17) % 512)) * a_Size / 1024;
-
- // The complete offset of the ravine from its cellpoint, up to 2 * a_Size in each direction
- int OffsetX = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 0) / 9) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * m_BlockZ, 1000) / 7) % (2 * a_Size)) - 2 * a_Size) / 2;
- int OffsetZ = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 2000) / 7) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * m_BlockZ, 3000) / 9) % (2 * a_Size)) - 2 * a_Size) / 2;
- int CenterX = a_BlockX + OffsetX;
- int CenterZ = a_BlockZ + OffsetZ;
-
- // Get the base angle in which the ravine "axis" goes:
- float Angle = (float)(((float)((a_Noise.IntNoise3DInt(20 * a_BlockX, 70 * a_BlockZ, 6000) / 9) % 16384)) / 16384.0 * 3.141592653);
- float xc = sin(Angle);
- float zc = cos(Angle);
-
- // Calculate the definition points and radii:
- int MaxRadius = (int)(sqrt(12.0 + ((a_Noise.IntNoise2DInt(61 * a_BlockX, 97 * a_BlockZ) / 13) % a_Size) / 16));
- int Top = 32 + ((a_Noise.IntNoise2DInt(13 * a_BlockX, 17 * a_BlockZ) / 23) % 32);
- int Bottom = 5 + ((a_Noise.IntNoise2DInt(17 * a_BlockX, 29 * a_BlockZ) / 13) % 32);
- int Mid = (Top + Bottom) / 2;
- int PointX = CenterX - (int)(xc * a_Size / 2);
- int PointZ = CenterZ - (int)(zc * a_Size / 2);
- m_Points.push_back(cRavDefPoint(PointX, PointZ, 0, (Mid + Top) / 2, (Mid + Bottom) / 2));
- for (int i = 1; i < NUM_RAVINE_POINTS - 1; i++)
- {
- int LineX = CenterX + (int)(xc * a_Size * (i - NUM_RAVINE_POINTS / 2) / NUM_RAVINE_POINTS);
- int LineZ = CenterZ + (int)(zc * a_Size * (i - NUM_RAVINE_POINTS / 2) / NUM_RAVINE_POINTS);
- // Amplitude is the amount of blocks that this point is away from the ravine "axis"
- int Amplitude = (a_Noise.IntNoise3DInt(70 * a_BlockX, 20 * a_BlockZ + 31 * i, 10000 * i) / 9) % a_Size;
- Amplitude = Amplitude / 4 - a_Size / 8; // Amplitude is in interval [-a_Size / 4, a_Size / 4]
- int PointX = LineX + (int)(zc * Amplitude);
- int PointZ = LineZ - (int)(xc * Amplitude);
- int Radius = MaxRadius - abs(i - NUM_RAVINE_POINTS / 2); // TODO: better radius function
- int ThisTop = Top + ((a_Noise.IntNoise3DInt(7 * a_BlockX, 19 * a_BlockZ, i * 31) / 13) % 8) - 4;
- int ThisBottom = Bottom + ((a_Noise.IntNoise3DInt(19 * a_BlockX, 7 * a_BlockZ, i * 31) / 13) % 8) - 4;
- m_Points.push_back(cRavDefPoint(PointX, PointZ, Radius, ThisTop, ThisBottom));
- } // for i - m_Points[]
- PointX = CenterX + (int)(xc * a_Size / 2);
- PointZ = CenterZ + (int)(zc * a_Size / 2);
- m_Points.push_back(cRavDefPoint(PointX, PointZ, 0, Mid, Mid));
-}
-
-
-
-
-
-void cStructGenRavines::cRavine::RefineDefPoints(const cRavDefPoints & a_Src, cRavDefPoints & a_Dst)
-{
- // Smoothing: for each line segment, add points on its 1/4 lengths
- int Num = a_Src.size() - 2; // this many intermediary points
- a_Dst.clear();
- a_Dst.reserve(Num * 2 + 2);
- cRavDefPoints::const_iterator itr = a_Src.begin() + 1;
- a_Dst.push_back(a_Src.front());
- int PrevX = a_Src.front().m_BlockX;
- int PrevZ = a_Src.front().m_BlockZ;
- int PrevR = a_Src.front().m_Radius;
- int PrevT = a_Src.front().m_Top;
- int PrevB = a_Src.front().m_Bottom;
- for (int i = 0; i <= Num; ++i, ++itr)
- {
- int dx = itr->m_BlockX - PrevX;
- int dz = itr->m_BlockZ - PrevZ;
- if (abs(dx) + abs(dz) < 4)
- {
- // Too short a segment to smooth-subdivide into quarters
- continue;
- }
- int dr = itr->m_Radius - PrevR;
- int dt = itr->m_Top - PrevT;
- int db = itr->m_Bottom - PrevB;
- int Rad1 = std::max(PrevR + 1 * dr / 4, 1);
- int Rad2 = std::max(PrevR + 3 * dr / 4, 1);
- a_Dst.push_back(cRavDefPoint(PrevX + 1 * dx / 4, PrevZ + 1 * dz / 4, Rad1, PrevT + 1 * dt / 4, PrevB + 1 * db / 4));
- a_Dst.push_back(cRavDefPoint(PrevX + 3 * dx / 4, PrevZ + 3 * dz / 4, Rad2, PrevT + 3 * dt / 4, PrevB + 3 * db / 4));
- PrevX = itr->m_BlockX;
- PrevZ = itr->m_BlockZ;
- PrevR = itr->m_Radius;
- PrevT = itr->m_Top;
- PrevB = itr->m_Bottom;
- }
- a_Dst.push_back(a_Src.back());
-}
-
-
-
-
-
-void cStructGenRavines::cRavine::Smooth(void)
-{
- cRavDefPoints Pts;
- RefineDefPoints(m_Points, Pts); // Refine m_Points -> Pts
- RefineDefPoints(Pts, m_Points); // Refine Pts -> m_Points
-}
-
-
-
-
-
-void cStructGenRavines::cRavine::FinishLinear(void)
-{
- // For each segment, use Bresenham's line algorithm to draw a "line" of defpoints
- // _X 2012_07_20: I tried modifying this algorithm to produce "thick" lines (only one coord change per point)
- // But the results were about the same as the original, so I disposed of it again - no need to use twice the count of points
-
- cRavDefPoints Pts;
- std::swap(Pts, m_Points);
-
- m_Points.reserve(Pts.size() * 3);
- int PrevX = Pts.front().m_BlockX;
- int PrevZ = Pts.front().m_BlockZ;
- for (cRavDefPoints::const_iterator itr = Pts.begin() + 1, end = Pts.end(); itr != end; ++itr)
- {
- int x1 = itr->m_BlockX;
- int z1 = itr->m_BlockZ;
- int dx = abs(x1 - PrevX);
- int dz = abs(z1 - PrevZ);
- int sx = (PrevX < x1) ? 1 : -1;
- int sz = (PrevZ < z1) ? 1 : -1;
- int err = dx - dz;
- int R = itr->m_Radius;
- int T = itr->m_Top;
- int B = itr->m_Bottom;
- while (true)
- {
- m_Points.push_back(cRavDefPoint(PrevX, PrevZ, R, T, B));
- if ((PrevX == x1) && (PrevZ == z1))
- {
- break;
- }
- int e2 = 2 * err;
- if (e2 > -dz)
- {
- err -= dz;
- PrevX += sx;
- }
- if (e2 < dx)
- {
- err += dx;
- PrevZ += sz;
- }
- } // while (true)
- } // for itr
-}
-
-
-
-
-
-#ifdef _DEBUG
-AString cStructGenRavines::cRavine::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
-{
- AString SVG;
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#%06x;stroke-width:1px;\"\nd=\"", a_Color);
- char Prefix = 'M'; // The first point needs "M" prefix, all the others need "L"
- for (cRavDefPoints::const_iterator itr = m_Points.begin(); itr != m_Points.end(); ++itr)
- {
- AppendPrintf(SVG, "%c %d,%d ", Prefix, a_OffsetX + itr->m_BlockX, a_OffsetZ + itr->m_BlockZ);
- Prefix = 'L';
- }
- SVG.append("\"/>\n");
-
- // Base point highlight:
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX - 5, a_OffsetZ + m_BlockZ, a_OffsetX + m_BlockX + 5, a_OffsetZ + m_BlockZ
- );
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ - 5, a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ + 5
- );
-
- // A gray line from the base point to the first point of the ravine, for identification:
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#cfcfcf;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ, a_OffsetX + m_Points.front().m_BlockX, a_OffsetZ + m_Points.front().m_BlockZ
- );
-
- // Offset guides:
- if (a_OffsetX > 0)
- {
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M %d,0 L %d,1024\"/>\n",
- a_OffsetX, a_OffsetX
- );
- }
- if (a_OffsetZ > 0)
- {
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M 0,%d L 1024,%d\"/>\n",
- a_OffsetZ, a_OffsetZ
- );
- }
- return SVG;
-}
-#endif // _DEBUG
-
-
-
-
-
-void cStructGenRavines::cRavine::ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
-)
-{
- int BlockStartX = a_ChunkX * cChunkDef::Width;
- int BlockStartZ = a_ChunkZ * cChunkDef::Width;
- int BlockEndX = BlockStartX + cChunkDef::Width;
- int BlockEndZ = BlockStartZ + cChunkDef::Width;
- for (cRavDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
- {
- if (
- (itr->m_BlockX + itr->m_Radius < BlockStartX) ||
- (itr->m_BlockX - itr->m_Radius > BlockEndX) ||
- (itr->m_BlockZ + itr->m_Radius < BlockStartZ) ||
- (itr->m_BlockZ - itr->m_Radius > BlockEndZ)
- )
- {
- // Cannot intersect, bail out early
- continue;
- }
-
- // Carve out a cylinder around the xz point, m_Radius in diameter, from Bottom to Top:
- int RadiusSq = itr->m_Radius * itr->m_Radius; // instead of doing sqrt for each distance, we do sqr of the radius
- int DifX = BlockStartX - itr->m_BlockX; // substitution for faster calc
- int DifZ = BlockStartZ - itr->m_BlockZ; // substitution for faster calc
- for (int x = 0; x < cChunkDef::Width; x++) for (int z = 0; z < cChunkDef::Width; z++)
- {
- #ifdef _DEBUG
- // DEBUG: Make the ravine shapepoints visible on a single layer (so that we can see with Minutor what's going on)
- if ((DifX + x == 0) && (DifZ + z == 0))
- {
- cChunkDef::SetBlock(a_BlockTypes, x, 4, z, E_BLOCK_LAPIS_ORE);
- }
- #endif // _DEBUG
-
- int DistSq = (DifX + x) * (DifX + x) + (DifZ + z) * (DifZ + z);
- if (DistSq <= RadiusSq)
- {
- int Top = std::min(itr->m_Top, (int)(cChunkDef::Height)); // Stupid gcc needs int cast
- for (int y = std::max(itr->m_Bottom, 1); y <= Top; y++)
- {
- switch (cChunkDef::GetBlock(a_BlockTypes, x, y, z))
- {
- // Only carve out these specific block types
- case E_BLOCK_DIRT:
- case E_BLOCK_GRASS:
- case E_BLOCK_STONE:
- case E_BLOCK_COBBLESTONE:
- case E_BLOCK_GRAVEL:
- case E_BLOCK_SAND:
- case E_BLOCK_SANDSTONE:
- case E_BLOCK_NETHERRACK:
- case E_BLOCK_COAL_ORE:
- case E_BLOCK_IRON_ORE:
- case E_BLOCK_GOLD_ORE:
- case E_BLOCK_DIAMOND_ORE:
- case E_BLOCK_REDSTONE_ORE:
- case E_BLOCK_REDSTONE_ORE_GLOWING:
- {
- cChunkDef::SetBlock(a_BlockTypes, x, y, z, E_BLOCK_AIR);
- break;
- }
- default: break;
- }
- }
- }
- } // for x, z - a_BlockTypes
- } // for itr - m_Points[]
-}
-
-
-
-
+
+// Ravines.cpp
+
+// Implements the cStructGenRavines class representing the ravine structure generator
+
+#include "Globals.h"
+#include "Ravines.h"
+
+
+
+
+/// How many ravines in each direction are generated for a given chunk. Must be an even number
+static const int NEIGHBORHOOD_SIZE = 8;
+
+static const int NUM_RAVINE_POINTS = 4;
+
+
+
+
+
+struct cRavDefPoint
+{
+ int m_BlockX;
+ int m_BlockZ;
+ int m_Radius;
+ int m_Top;
+ int m_Bottom;
+
+ cRavDefPoint(int a_BlockX, int a_BlockZ, int a_Radius, int a_Top, int a_Bottom) :
+ m_BlockX(a_BlockX),
+ m_BlockZ(a_BlockZ),
+ m_Radius(a_Radius),
+ m_Top (a_Top),
+ m_Bottom(a_Bottom)
+ {
+ }
+} ;
+
+typedef std::vector<cRavDefPoint> cRavDefPoints;
+
+
+
+
+
+class cStructGenRavines::cRavine
+{
+ cRavDefPoints m_Points;
+
+ /// Generates the shaping defpoints for the ravine, based on the ravine block coords and noise
+ void GenerateBaseDefPoints(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise);
+
+ /// Refines (adds and smooths) defpoints from a_Src into a_Dst
+ void RefineDefPoints(const cRavDefPoints & a_Src, cRavDefPoints & a_Dst);
+
+ /// Does one round of smoothing, two passes of RefineDefPoints()
+ void Smooth(void);
+
+ /// Linearly interpolates the points so that the maximum distance between two neighbors is max 1 block
+ void FinishLinear(void);
+
+public:
+ // Coords for which the ravine was generated (not necessarily the center)
+ int m_BlockX;
+ int m_BlockZ;
+
+ cRavine(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise);
+
+ /// Carves the ravine into the chunk specified
+ void ProcessChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDef::BlockTypes & a_BlockTypes,
+ cChunkDef::HeightMap & a_HeightMap
+ );
+
+ #ifdef _DEBUG
+ /// Exports itself as a SVG line definition
+ AString ExportAsSVG(int a_Color, int a_OffsetX = 0, int a_OffsetZ = 0) const;
+ #endif // _DEBUG
+} ;
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenRavines:
+
+cStructGenRavines::cStructGenRavines(int a_Seed, int a_Size) :
+ m_Noise(a_Seed),
+ m_Size(a_Size)
+{
+}
+
+
+
+
+
+cStructGenRavines::~cStructGenRavines()
+{
+ ClearCache();
+}
+
+
+
+
+
+void cStructGenRavines::ClearCache(void)
+{
+ for (cRavines::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ } // for itr - m_Cache[]
+ m_Cache.clear();
+}
+
+
+
+
+
+void cStructGenRavines::GenStructures(cChunkDesc & a_ChunkDesc)
+{
+ int ChunkX = a_ChunkDesc.GetChunkX();
+ int ChunkZ = a_ChunkDesc.GetChunkZ();
+ cRavines Ravines;
+ GetRavinesForChunk(ChunkX, ChunkZ, Ravines);
+ for (cRavines::const_iterator itr = Ravines.begin(), end = Ravines.end(); itr != end; ++itr)
+ {
+ (*itr)->ProcessChunk(ChunkX, ChunkZ, a_ChunkDesc.GetBlockTypes(), a_ChunkDesc.GetHeightMap());
+ } // for itr - Ravines[]
+}
+
+
+
+
+
+void cStructGenRavines::GetRavinesForChunk(int a_ChunkX, int a_ChunkZ, cStructGenRavines::cRavines & a_Ravines)
+{
+ int BaseX = a_ChunkX * cChunkDef::Width / m_Size;
+ int BaseZ = a_ChunkZ * cChunkDef::Width / m_Size;
+ if (BaseX < 0)
+ {
+ --BaseX;
+ }
+ if (BaseZ < 0)
+ {
+ --BaseZ;
+ }
+ BaseX -= 4;
+ BaseZ -= 4;
+
+ // Walk the cache, move each ravine that we want into a_Ravines:
+ int StartX = BaseX * m_Size;
+ int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_Size;
+ int StartZ = BaseZ * m_Size;
+ int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_Size;
+ for (cRavines::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
+ {
+ if (
+ ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
+ ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
+ )
+ {
+ // want
+ a_Ravines.push_back(*itr);
+ itr = m_Cache.erase(itr);
+ }
+ else
+ {
+ // don't want
+ ++itr;
+ }
+ } // for itr - m_Cache[]
+
+ for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
+ {
+ int RealX = (BaseX + x) * m_Size;
+ for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
+ {
+ int RealZ = (BaseZ + z) * m_Size;
+ bool Found = false;
+ for (cRavines::const_iterator itr = a_Ravines.begin(), end = a_Ravines.end(); itr != end; ++itr)
+ {
+ if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
+ {
+ Found = true;
+ break;
+ }
+ }
+ if (!Found)
+ {
+ a_Ravines.push_back(new cRavine(RealX, RealZ, m_Size, m_Noise));
+ }
+ }
+ }
+
+ // Copy a_Ravines into m_Cache to the beginning:
+ cRavines RavinesCopy(a_Ravines);
+ m_Cache.splice(m_Cache.begin(), RavinesCopy, RavinesCopy.begin(), RavinesCopy.end());
+
+ // Trim the cache if it's too long:
+ if (m_Cache.size() > 100)
+ {
+ cRavines::iterator itr = m_Cache.begin();
+ std::advance(itr, 100);
+ for (cRavines::iterator end = m_Cache.end(); itr != end; ++itr)
+ {
+ delete *itr;
+ }
+ itr = m_Cache.begin();
+ std::advance(itr, 100);
+ m_Cache.erase(itr, m_Cache.end());
+ }
+
+ /*
+ #ifdef _DEBUG
+ // DEBUG: Export as SVG into a file specific for the chunk, for visual verification:
+ AString SVG;
+ SVG.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"1024\" height = \"1024\">\n");
+ for (cRavines::const_iterator itr = a_Ravines.begin(), end = a_Ravines.end(); itr != end; ++itr)
+ {
+ SVG.append((*itr)->ExportAsSVG(0, 512, 512));
+ }
+ SVG.append("</svg>\n");
+
+ AString fnam;
+ Printf(fnam, "ravines\\%03d_%03d.svg", a_ChunkX, a_ChunkZ);
+ cFile File(fnam, cFile::fmWrite);
+ File.Write(SVG.c_str(), SVG.size());
+ #endif // _DEBUG
+ //*/
+}
+
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cStructGenRavines::cRavine
+
+cStructGenRavines::cRavine::cRavine(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise) :
+ m_BlockX(a_BlockX),
+ m_BlockZ(a_BlockZ)
+{
+ // Calculate the ravine shape-defining points:
+ GenerateBaseDefPoints(a_BlockX, a_BlockZ, a_Size, a_Noise);
+
+ // Smooth the ravine. A two passes are needed:
+ Smooth();
+ Smooth();
+
+ // Linearly interpolate the neighbors so that they're close enough together:
+ FinishLinear();
+}
+
+
+
+
+
+void cStructGenRavines::cRavine::GenerateBaseDefPoints(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise)
+{
+ // Modify the size slightly to have different-sized ravines (1/2 to 1/1 of a_Size):
+ a_Size = (512 + ((a_Noise.IntNoise3DInt(19 * a_BlockX, 11 * a_BlockZ, a_BlockX + a_BlockZ) / 17) % 512)) * a_Size / 1024;
+
+ // The complete offset of the ravine from its cellpoint, up to 2 * a_Size in each direction
+ int OffsetX = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 0) / 9) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * m_BlockZ, 1000) / 7) % (2 * a_Size)) - 2 * a_Size) / 2;
+ int OffsetZ = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 2000) / 7) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * m_BlockZ, 3000) / 9) % (2 * a_Size)) - 2 * a_Size) / 2;
+ int CenterX = a_BlockX + OffsetX;
+ int CenterZ = a_BlockZ + OffsetZ;
+
+ // Get the base angle in which the ravine "axis" goes:
+ float Angle = (float)(((float)((a_Noise.IntNoise3DInt(20 * a_BlockX, 70 * a_BlockZ, 6000) / 9) % 16384)) / 16384.0 * 3.141592653);
+ float xc = sin(Angle);
+ float zc = cos(Angle);
+
+ // Calculate the definition points and radii:
+ int MaxRadius = (int)(sqrt(12.0 + ((a_Noise.IntNoise2DInt(61 * a_BlockX, 97 * a_BlockZ) / 13) % a_Size) / 16));
+ int Top = 32 + ((a_Noise.IntNoise2DInt(13 * a_BlockX, 17 * a_BlockZ) / 23) % 32);
+ int Bottom = 5 + ((a_Noise.IntNoise2DInt(17 * a_BlockX, 29 * a_BlockZ) / 13) % 32);
+ int Mid = (Top + Bottom) / 2;
+ int PointX = CenterX - (int)(xc * a_Size / 2);
+ int PointZ = CenterZ - (int)(zc * a_Size / 2);
+ m_Points.push_back(cRavDefPoint(PointX, PointZ, 0, (Mid + Top) / 2, (Mid + Bottom) / 2));
+ for (int i = 1; i < NUM_RAVINE_POINTS - 1; i++)
+ {
+ int LineX = CenterX + (int)(xc * a_Size * (i - NUM_RAVINE_POINTS / 2) / NUM_RAVINE_POINTS);
+ int LineZ = CenterZ + (int)(zc * a_Size * (i - NUM_RAVINE_POINTS / 2) / NUM_RAVINE_POINTS);
+ // Amplitude is the amount of blocks that this point is away from the ravine "axis"
+ int Amplitude = (a_Noise.IntNoise3DInt(70 * a_BlockX, 20 * a_BlockZ + 31 * i, 10000 * i) / 9) % a_Size;
+ Amplitude = Amplitude / 4 - a_Size / 8; // Amplitude is in interval [-a_Size / 4, a_Size / 4]
+ int PointX = LineX + (int)(zc * Amplitude);
+ int PointZ = LineZ - (int)(xc * Amplitude);
+ int Radius = MaxRadius - abs(i - NUM_RAVINE_POINTS / 2); // TODO: better radius function
+ int ThisTop = Top + ((a_Noise.IntNoise3DInt(7 * a_BlockX, 19 * a_BlockZ, i * 31) / 13) % 8) - 4;
+ int ThisBottom = Bottom + ((a_Noise.IntNoise3DInt(19 * a_BlockX, 7 * a_BlockZ, i * 31) / 13) % 8) - 4;
+ m_Points.push_back(cRavDefPoint(PointX, PointZ, Radius, ThisTop, ThisBottom));
+ } // for i - m_Points[]
+ PointX = CenterX + (int)(xc * a_Size / 2);
+ PointZ = CenterZ + (int)(zc * a_Size / 2);
+ m_Points.push_back(cRavDefPoint(PointX, PointZ, 0, Mid, Mid));
+}
+
+
+
+
+
+void cStructGenRavines::cRavine::RefineDefPoints(const cRavDefPoints & a_Src, cRavDefPoints & a_Dst)
+{
+ // Smoothing: for each line segment, add points on its 1/4 lengths
+ int Num = a_Src.size() - 2; // this many intermediary points
+ a_Dst.clear();
+ a_Dst.reserve(Num * 2 + 2);
+ cRavDefPoints::const_iterator itr = a_Src.begin() + 1;
+ a_Dst.push_back(a_Src.front());
+ int PrevX = a_Src.front().m_BlockX;
+ int PrevZ = a_Src.front().m_BlockZ;
+ int PrevR = a_Src.front().m_Radius;
+ int PrevT = a_Src.front().m_Top;
+ int PrevB = a_Src.front().m_Bottom;
+ for (int i = 0; i <= Num; ++i, ++itr)
+ {
+ int dx = itr->m_BlockX - PrevX;
+ int dz = itr->m_BlockZ - PrevZ;
+ if (abs(dx) + abs(dz) < 4)
+ {
+ // Too short a segment to smooth-subdivide into quarters
+ continue;
+ }
+ int dr = itr->m_Radius - PrevR;
+ int dt = itr->m_Top - PrevT;
+ int db = itr->m_Bottom - PrevB;
+ int Rad1 = std::max(PrevR + 1 * dr / 4, 1);
+ int Rad2 = std::max(PrevR + 3 * dr / 4, 1);
+ a_Dst.push_back(cRavDefPoint(PrevX + 1 * dx / 4, PrevZ + 1 * dz / 4, Rad1, PrevT + 1 * dt / 4, PrevB + 1 * db / 4));
+ a_Dst.push_back(cRavDefPoint(PrevX + 3 * dx / 4, PrevZ + 3 * dz / 4, Rad2, PrevT + 3 * dt / 4, PrevB + 3 * db / 4));
+ PrevX = itr->m_BlockX;
+ PrevZ = itr->m_BlockZ;
+ PrevR = itr->m_Radius;
+ PrevT = itr->m_Top;
+ PrevB = itr->m_Bottom;
+ }
+ a_Dst.push_back(a_Src.back());
+}
+
+
+
+
+
+void cStructGenRavines::cRavine::Smooth(void)
+{
+ cRavDefPoints Pts;
+ RefineDefPoints(m_Points, Pts); // Refine m_Points -> Pts
+ RefineDefPoints(Pts, m_Points); // Refine Pts -> m_Points
+}
+
+
+
+
+
+void cStructGenRavines::cRavine::FinishLinear(void)
+{
+ // For each segment, use Bresenham's line algorithm to draw a "line" of defpoints
+ // _X 2012_07_20: I tried modifying this algorithm to produce "thick" lines (only one coord change per point)
+ // But the results were about the same as the original, so I disposed of it again - no need to use twice the count of points
+
+ cRavDefPoints Pts;
+ std::swap(Pts, m_Points);
+
+ m_Points.reserve(Pts.size() * 3);
+ int PrevX = Pts.front().m_BlockX;
+ int PrevZ = Pts.front().m_BlockZ;
+ for (cRavDefPoints::const_iterator itr = Pts.begin() + 1, end = Pts.end(); itr != end; ++itr)
+ {
+ int x1 = itr->m_BlockX;
+ int z1 = itr->m_BlockZ;
+ int dx = abs(x1 - PrevX);
+ int dz = abs(z1 - PrevZ);
+ int sx = (PrevX < x1) ? 1 : -1;
+ int sz = (PrevZ < z1) ? 1 : -1;
+ int err = dx - dz;
+ int R = itr->m_Radius;
+ int T = itr->m_Top;
+ int B = itr->m_Bottom;
+ while (true)
+ {
+ m_Points.push_back(cRavDefPoint(PrevX, PrevZ, R, T, B));
+ if ((PrevX == x1) && (PrevZ == z1))
+ {
+ break;
+ }
+ int e2 = 2 * err;
+ if (e2 > -dz)
+ {
+ err -= dz;
+ PrevX += sx;
+ }
+ if (e2 < dx)
+ {
+ err += dx;
+ PrevZ += sz;
+ }
+ } // while (true)
+ } // for itr
+}
+
+
+
+
+
+#ifdef _DEBUG
+AString cStructGenRavines::cRavine::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
+{
+ AString SVG;
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#%06x;stroke-width:1px;\"\nd=\"", a_Color);
+ char Prefix = 'M'; // The first point needs "M" prefix, all the others need "L"
+ for (cRavDefPoints::const_iterator itr = m_Points.begin(); itr != m_Points.end(); ++itr)
+ {
+ AppendPrintf(SVG, "%c %d,%d ", Prefix, a_OffsetX + itr->m_BlockX, a_OffsetZ + itr->m_BlockZ);
+ Prefix = 'L';
+ }
+ SVG.append("\"/>\n");
+
+ // Base point highlight:
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
+ a_OffsetX + m_BlockX - 5, a_OffsetZ + m_BlockZ, a_OffsetX + m_BlockX + 5, a_OffsetZ + m_BlockZ
+ );
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
+ a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ - 5, a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ + 5
+ );
+
+ // A gray line from the base point to the first point of the ravine, for identification:
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#cfcfcf;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
+ a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ, a_OffsetX + m_Points.front().m_BlockX, a_OffsetZ + m_Points.front().m_BlockZ
+ );
+
+ // Offset guides:
+ if (a_OffsetX > 0)
+ {
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M %d,0 L %d,1024\"/>\n",
+ a_OffsetX, a_OffsetX
+ );
+ }
+ if (a_OffsetZ > 0)
+ {
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M 0,%d L 1024,%d\"/>\n",
+ a_OffsetZ, a_OffsetZ
+ );
+ }
+ return SVG;
+}
+#endif // _DEBUG
+
+
+
+
+
+void cStructGenRavines::cRavine::ProcessChunk(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDef::BlockTypes & a_BlockTypes,
+ cChunkDef::HeightMap & a_HeightMap
+)
+{
+ int BlockStartX = a_ChunkX * cChunkDef::Width;
+ int BlockStartZ = a_ChunkZ * cChunkDef::Width;
+ int BlockEndX = BlockStartX + cChunkDef::Width;
+ int BlockEndZ = BlockStartZ + cChunkDef::Width;
+ for (cRavDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
+ {
+ if (
+ (itr->m_BlockX + itr->m_Radius < BlockStartX) ||
+ (itr->m_BlockX - itr->m_Radius > BlockEndX) ||
+ (itr->m_BlockZ + itr->m_Radius < BlockStartZ) ||
+ (itr->m_BlockZ - itr->m_Radius > BlockEndZ)
+ )
+ {
+ // Cannot intersect, bail out early
+ continue;
+ }
+
+ // Carve out a cylinder around the xz point, m_Radius in diameter, from Bottom to Top:
+ int RadiusSq = itr->m_Radius * itr->m_Radius; // instead of doing sqrt for each distance, we do sqr of the radius
+ int DifX = BlockStartX - itr->m_BlockX; // substitution for faster calc
+ int DifZ = BlockStartZ - itr->m_BlockZ; // substitution for faster calc
+ for (int x = 0; x < cChunkDef::Width; x++) for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ #ifdef _DEBUG
+ // DEBUG: Make the ravine shapepoints visible on a single layer (so that we can see with Minutor what's going on)
+ if ((DifX + x == 0) && (DifZ + z == 0))
+ {
+ cChunkDef::SetBlock(a_BlockTypes, x, 4, z, E_BLOCK_LAPIS_ORE);
+ }
+ #endif // _DEBUG
+
+ int DistSq = (DifX + x) * (DifX + x) + (DifZ + z) * (DifZ + z);
+ if (DistSq <= RadiusSq)
+ {
+ int Top = std::min(itr->m_Top, (int)(cChunkDef::Height)); // Stupid gcc needs int cast
+ for (int y = std::max(itr->m_Bottom, 1); y <= Top; y++)
+ {
+ switch (cChunkDef::GetBlock(a_BlockTypes, x, y, z))
+ {
+ // Only carve out these specific block types
+ case E_BLOCK_DIRT:
+ case E_BLOCK_GRASS:
+ case E_BLOCK_STONE:
+ case E_BLOCK_COBBLESTONE:
+ case E_BLOCK_GRAVEL:
+ case E_BLOCK_SAND:
+ case E_BLOCK_SANDSTONE:
+ case E_BLOCK_NETHERRACK:
+ case E_BLOCK_COAL_ORE:
+ case E_BLOCK_IRON_ORE:
+ case E_BLOCK_GOLD_ORE:
+ case E_BLOCK_DIAMOND_ORE:
+ case E_BLOCK_REDSTONE_ORE:
+ case E_BLOCK_REDSTONE_ORE_GLOWING:
+ {
+ cChunkDef::SetBlock(a_BlockTypes, x, y, z, E_BLOCK_AIR);
+ break;
+ }
+ default: break;
+ }
+ }
+ }
+ } // for x, z - a_BlockTypes
+ } // for itr - m_Points[]
+}
+
+
+
+
diff --git a/source/Generating/Ravines.h b/source/Generating/Ravines.h
index 1c559c70d..05164a5b2 100644
--- a/source/Generating/Ravines.h
+++ b/source/Generating/Ravines.h
@@ -1,46 +1,46 @@
-
-// Ravines.h
-
-// Interfaces to the cStructGenRavines class representing the ravine structure generator
-
-
-
-
-
-#pragma once
-
-#include "ComposableGenerator.h"
-#include "../Noise.h"
-
-
-
-
-
-class cStructGenRavines :
- public cStructureGen
-{
-public:
- cStructGenRavines(int a_Seed, int a_Size);
- ~cStructGenRavines();
-
-protected:
- class cRavine; // fwd: Ravines.cpp
- typedef std::list<cRavine *> cRavines;
-
- cNoise m_Noise;
- int m_Size; // Max size, in blocks, of the ravines generated
- cRavines m_Cache;
-
- /// Clears everything from the cache
- void ClearCache(void);
-
- /// Returns all ravines that *may* intersect the given chunk. All the ravines are valid until the next call to this function.
- void GetRavinesForChunk(int a_ChunkX, int a_ChunkZ, cRavines & a_Ravines);
-
- // cStructureGen override:
- virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
-} ;
-
-
-
-
+
+// Ravines.h
+
+// Interfaces to the cStructGenRavines class representing the ravine structure generator
+
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "../Noise.h"
+
+
+
+
+
+class cStructGenRavines :
+ public cStructureGen
+{
+public:
+ cStructGenRavines(int a_Seed, int a_Size);
+ ~cStructGenRavines();
+
+protected:
+ class cRavine; // fwd: Ravines.cpp
+ typedef std::list<cRavine *> cRavines;
+
+ cNoise m_Noise;
+ int m_Size; // Max size, in blocks, of the ravines generated
+ cRavines m_Cache;
+
+ /// Clears everything from the cache
+ void ClearCache(void);
+
+ /// Returns all ravines that *may* intersect the given chunk. All the ravines are valid until the next call to this function.
+ void GetRavinesForChunk(int a_ChunkX, int a_ChunkZ, cRavines & a_Ravines);
+
+ // cStructureGen override:
+ virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+