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diff --git a/src/Generating/Noise3DGenerator.cpp b/src/Generating/Noise3DGenerator.cpp
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+++ b/src/Generating/Noise3DGenerator.cpp
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+
+// 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 (unsigned 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 (unsigned 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;
+
+ // 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;
+ }
+ }
+
+ 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
+}
+
+
+
+
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