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authormadmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-09-23 22:14:04 +0200
committermadmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-09-23 22:14:04 +0200
commit881ad8d8dbed920c00ea750fb809797456e0b4fc (patch)
treea24d6e094842a952e5ad5b8739fba52ceb36ba7d /source/BioGen.cpp
parentSource files cleanup: Protocol-related files in a separate subfolder (diff)
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Diffstat (limited to 'source/BioGen.cpp')
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diff --git a/source/BioGen.cpp b/source/BioGen.cpp
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@@ -1,304 +0,0 @@
-
-// BioGen.cpp
-
-// Implements the various biome generators
-
-#include "Globals.h"
-#include "BioGen.h"
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cBioGenConstant:
-
-void cBioGenConstant::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- for (int i = 0; i < ARRAYCOUNT(a_BiomeMap); i++)
- {
- a_BiomeMap[i] = m_Biome;
- }
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cBioGenCache:
-
-cBioGenCache::cBioGenCache(cBiomeGen * a_BioGenToCache, int a_CacheSize) :
- m_BioGenToCache(a_BioGenToCache),
- m_CacheSize(a_CacheSize),
- m_CacheOrder(new int[a_CacheSize]),
- m_CacheData(new sCacheData[a_CacheSize]),
- m_NumHits(0),
- m_NumMisses(0),
- m_TotalChain(0)
-{
- for (int i = 0; i < m_CacheSize; i++)
- {
- m_CacheOrder[i] = i;
- m_CacheData[i].m_ChunkX = 0x7fffffff;
- m_CacheData[i].m_ChunkZ = 0x7fffffff;
- }
-}
-
-
-
-
-
-cBioGenCache::~cBioGenCache()
-{
- delete m_CacheData;
- delete m_CacheOrder;
- delete m_BioGenToCache;
-}
-
-
-
-
-
-void cBioGenCache::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- if (((m_NumHits + m_NumMisses) % 1024) == 10)
- {
- LOGD("BioGenCache: %d hits, %d misses, saved %.2f %%", m_NumHits, m_NumMisses, 100.0 * m_NumHits / (m_NumHits + m_NumMisses));
- LOGD("BioGenCache: Avg cache chain length: %.2f", (float)m_TotalChain / m_NumHits);
- }
-
- for (int i = 0; i < m_CacheSize; i++)
- {
- if (
- (m_CacheData[m_CacheOrder[i]].m_ChunkX != a_ChunkX) ||
- (m_CacheData[m_CacheOrder[i]].m_ChunkZ != a_ChunkZ)
- )
- {
- continue;
- }
- // Found it in the cache
- int Idx = m_CacheOrder[i];
-
- // Move to front:
- for (int j = i; j > 0; j--)
- {
- m_CacheOrder[j] = m_CacheOrder[j - 1];
- }
- m_CacheOrder[0] = Idx;
-
- // Use the cached data:
- memcpy(a_BiomeMap, m_CacheData[Idx].m_BiomeMap, sizeof(a_BiomeMap));
-
- m_NumHits++;
- m_TotalChain += i;
- return;
- } // for i - cache
-
- // Not in the cache:
- m_NumMisses++;
- m_BioGenToCache->GenBiomes(a_ChunkX, a_ChunkZ, a_BiomeMap);
-
- // Insert it as the first item in the MRU order:
- int Idx = m_CacheOrder[m_CacheSize - 1];
- for (int i = m_CacheSize - 1; i > 0; i--)
- {
- m_CacheOrder[i] = m_CacheOrder[i - 1];
- } // for i - m_CacheOrder[]
- m_CacheOrder[0] = Idx;
- memcpy(m_CacheData[Idx].m_BiomeMap, a_BiomeMap, sizeof(a_BiomeMap));
- m_CacheData[Idx].m_ChunkX = a_ChunkX;
- m_CacheData[Idx].m_ChunkZ = a_ChunkZ;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cBiomeGenList:
-
-void cBiomeGenList::InitializeBiomes(const AString & a_Biomes)
-{
- AStringVector Split = StringSplit(a_Biomes, ",");
-
- // Convert each string in the list into biome:
- for (AStringVector::const_iterator itr = Split.begin(); itr != Split.end(); ++itr)
- {
- EMCSBiome Biome = StringToBiome(*itr);
- if (Biome != -1)
- {
- m_Biomes.push_back(Biome);
- }
- } // for itr - Split[]
- if (!m_Biomes.empty())
- {
- m_BiomesCount = (int)m_Biomes.size();
- return;
- }
-
- // There were no biomes, add default biomes:
- static EMCSBiome Biomes[] =
- {
- biOcean,
- biPlains,
- biDesert,
- biExtremeHills,
- biForest,
- biTaiga,
- biSwampland,
- biRiver,
- biFrozenOcean,
- biFrozenRiver,
- biIcePlains,
- biIceMountains,
- biMushroomIsland,
- biMushroomShore,
- biBeach,
- biDesertHills,
- biForestHills,
- biTaigaHills,
- biExtremeHillsEdge,
- biJungle,
- biJungleHills,
- } ;
- m_Biomes.reserve(ARRAYCOUNT(Biomes));
- for (int i = 0; i < ARRAYCOUNT(Biomes); i++)
- {
- m_Biomes.push_back(Biomes[i]);
- }
- m_BiomesCount = (int)m_Biomes.size();
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cBioGenCheckerboard:
-
-void cBioGenCheckerboard::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- int Base = cChunkDef::Width * a_ChunkZ + z;
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- int Add = cChunkDef::Width * a_ChunkX + x;
- a_BiomeMap[x + cChunkDef::Width * z] = m_Biomes[(Base / m_BiomeSize + Add / m_BiomeSize) % m_BiomesCount];
- }
- }
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cBioGenVoronoi :
-
-void cBioGenVoronoi::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- int BaseZ = cChunkDef::Width * a_ChunkZ;
- int BaseX = cChunkDef::Width * a_ChunkX;
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- int AbsoluteZ = BaseZ + z;
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- cChunkDef::SetBiome(a_BiomeMap, x, z, VoronoiBiome(BaseX + x, AbsoluteZ));
- } // for x
- } // for z
-}
-
-
-
-
-
-EMCSBiome cBioGenVoronoi::VoronoiBiome(int a_BlockX, int a_BlockZ)
-{
- int CellX = a_BlockX / m_CellSize;
- int CellZ = a_BlockZ / m_CellSize;
-
- // Note that Noise values need to be divided by 8 to gain a uniform modulo-2^n distribution
-
- // Get 5x5 neighboring cell seeds, compare distance to each. Return the biome in the minumim-distance cell
- int MinDist = m_CellSize * m_CellSize * 16; // There has to be a cell closer than this
- EMCSBiome res = biPlains; // Will be overriden
- for (int x = CellX - 2; x <= CellX + 2; x++)
- {
- int BaseX = x * m_CellSize;
- for (int z = CellZ - 2; z < CellZ + 2; z++)
- {
- int OffsetX = (m_Noise.IntNoise3DInt(x, 16 * x + 32 * z, z) / 8) % m_CellSize;
- int OffsetZ = (m_Noise.IntNoise3DInt(x, 32 * x - 16 * z, z) / 8) % m_CellSize;
- int SeedX = BaseX + OffsetX;
- int SeedZ = z * m_CellSize + OffsetZ;
-
- int Dist = (SeedX - a_BlockX) * (SeedX - a_BlockX) + (SeedZ - a_BlockZ) * (SeedZ - a_BlockZ);
- if (Dist < MinDist)
- {
- MinDist = Dist;
- res = m_Biomes[(m_Noise.IntNoise3DInt(x, x - z + 1000, z) / 8) % m_BiomesCount];
- }
- } // for z
- } // for x
-
- return res;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cBioGenDistortedVoronoi:
-
-void cBioGenDistortedVoronoi::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
-{
- int BaseZ = cChunkDef::Width * a_ChunkZ;
- int BaseX = cChunkDef::Width * a_ChunkX;
-
- // Distortions for linear interpolation:
- int DistortX[cChunkDef::Width + 1][cChunkDef::Width + 1];
- int DistortZ[cChunkDef::Width + 1][cChunkDef::Width + 1];
- for (int x = 0; x <= 4; x++) for (int z = 0; z <= 4; z++)
- {
- Distort(BaseX + x * 4, BaseZ + z * 4, DistortX[4 * x][4 * z], DistortZ[4 * x][4 * z]);
- }
-
- IntArrayLinearInterpolate2D(&DistortX[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4);
- IntArrayLinearInterpolate2D(&DistortZ[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4);
-
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- int AbsoluteZ = BaseZ + z;
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- // Distort(BaseX + x, AbsoluteZ, DistX, DistZ);
- cChunkDef::SetBiome(a_BiomeMap, x, z, VoronoiBiome(DistortX[x][z], DistortZ[x][z]));
- } // for x
- } // for z
-}
-
-
-
-
-
-void cBioGenDistortedVoronoi::Distort(int a_BlockX, int a_BlockZ, int & a_DistortedX, int & a_DistortedZ)
-{
- double NoiseX = m_Noise.CubicNoise3D((float)a_BlockX / m_CellSize, (float)a_BlockZ / m_CellSize, 1000);
- NoiseX += 0.5 * m_Noise.CubicNoise3D(2 * (float)a_BlockX / m_CellSize, 2 * (float)a_BlockZ / m_CellSize, 2000);
- NoiseX += 0.08 * m_Noise.CubicNoise3D(16 * (float)a_BlockX / m_CellSize, 16 * (float)a_BlockZ / m_CellSize, 3000);
- double NoiseZ = m_Noise.CubicNoise3D((float)a_BlockX / m_CellSize, (float)a_BlockZ / m_CellSize, 4000);
- NoiseZ += 0.5 * m_Noise.CubicNoise3D(2 * (float)a_BlockX / m_CellSize, 2 * (float)a_BlockZ / m_CellSize, 5000);
- NoiseZ += 0.08 * m_Noise.CubicNoise3D(16 * (float)a_BlockX / m_CellSize, 16 * (float)a_BlockZ / m_CellSize, 6000);
-
- a_DistortedX = a_BlockX + (int)(m_CellSize * 0.5 * NoiseX);
- a_DistortedZ = a_BlockZ + (int)(m_CellSize * 0.5 * NoiseZ);
-}
-
-
-
-
-