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Diffstat (limited to 'source/Generating/BioGen.cpp')
| -rw-r--r-- | source/Generating/BioGen.cpp | 707 |
1 files changed, 0 insertions, 707 deletions
diff --git a/source/Generating/BioGen.cpp b/source/Generating/BioGen.cpp deleted file mode 100644 index 926120afc..000000000 --- a/source/Generating/BioGen.cpp +++ /dev/null @@ -1,707 +0,0 @@ - -// BioGen.cpp - -// Implements the various biome generators - -#include "Globals.h" -#include "BioGen.h" -#include "../../iniFile/iniFile.h" -#include "../LinearUpscale.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; - } -} - - - - - -void cBioGenConstant::InitializeBiomeGen(cIniFile & a_IniFile) -{ - AString Biome = a_IniFile.GetValueSet("Generator", "ConstantBiome", "Plains"); - m_Biome = StringToBiome(Biome); - if (m_Biome == -1) - { - LOGWARN("[Generator]::ConstantBiome value \"%s\" not recognized, using \"Plains\".", Biome.c_str()); - m_Biome = biPlains; - } -} - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// 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; -} - - - - - -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; -} - - - - - -void cBioGenCache::InitializeBiomeGen(cIniFile & a_IniFile) -{ - super::InitializeBiomeGen(a_IniFile); - m_BioGenToCache->InitializeBiomeGen(a_IniFile); -} - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// 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) - { - AStringVector Split2 = StringSplit(*itr, ":"); - if (Split2.size() < 1) - { - continue; - } - int Count = 1; - if (Split2.size() >= 2) - { - Count = atol(Split2[1].c_str()); - if (Count <= 0) - { - LOGWARNING("Cannot decode biome count: \"%s\"; using 1.", Split2[1].c_str()); - Count = 1; - } - } - EMCSBiome Biome = StringToBiome(Split2[0]); - if (Biome != -1) - { - for (int i = 0; i < Count; i++) - { - m_Biomes.push_back(Biome); - } - } - else - { - LOGWARNING("Cannot decode biome name: \"%s\"; skipping", Split2[0].c_str()); - } - } // 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]; - } - } -} - - - - - -void cBioGenCheckerboard::InitializeBiomeGen(cIniFile & a_IniFile) -{ - super::InitializeBiomeGen(a_IniFile); - AString Biomes = a_IniFile.GetValueSet ("Generator", "CheckerBoardBiomes", ""); - m_BiomeSize = a_IniFile.GetValueSetI("Generator", "CheckerboardBiomeSize", 64); - m_BiomeSize = (m_BiomeSize < 8) ? 8 : m_BiomeSize; - InitializeBiomes(Biomes); -} - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// 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 -} - - - - - -void cBioGenVoronoi::InitializeBiomeGen(cIniFile & a_IniFile) -{ - super::InitializeBiomeGen(a_IniFile); - m_CellSize = a_IniFile.GetValueSetI("Generator", "VoronoiCellSize", 64); - AString Biomes = a_IniFile.GetValueSet ("Generator", "VoronoiBiomes", ""); - InitializeBiomes(Biomes); -} - - - - - -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]); - } - - LinearUpscale2DArrayInPlace(&DistortX[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4); - LinearUpscale2DArrayInPlace(&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::InitializeBiomeGen(cIniFile & a_IniFile) -{ - // Do NOT call super::InitializeBiomeGen(), as it would try to read Voronoi params instead of DistortedVoronoi params - m_CellSize = a_IniFile.GetValueSetI("Generator", "DistortedVoronoiCellSize", 96); - AString Biomes = a_IniFile.GetValueSet ("Generator", "DistortedVoronoiBiomes", ""); - InitializeBiomes(Biomes); -} - - - - -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); -} - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// cBioGenMultiStepMap : - -cBioGenMultiStepMap::cBioGenMultiStepMap(int a_Seed) : - m_Noise1(a_Seed + 1000), - m_Noise2(a_Seed + 2000), - m_Noise3(a_Seed + 3000), - m_Noise4(a_Seed + 4000), - m_Noise5(a_Seed + 5000), - m_Noise6(a_Seed + 6000), - m_Seed(a_Seed), - m_OceanCellSize(384), - m_MushroomIslandSize(64), - m_RiverCellSize(384), - m_RiverWidthThreshold(0.125), - m_LandBiomesSize(1024) -{ -} - - - - - -void cBioGenMultiStepMap::InitializeBiomeGen(cIniFile & a_IniFile) -{ - m_OceanCellSize = a_IniFile.GetValueSetI("Generator", "MultiStepMapOceanCellSize", m_OceanCellSize); - m_MushroomIslandSize = a_IniFile.GetValueSetI("Generator", "MultiStepMapMushroomIslandSize", m_MushroomIslandSize); - m_RiverCellSize = a_IniFile.GetValueSetI("Generator", "MultiStepMapRiverCellSize", m_RiverCellSize); - m_RiverWidthThreshold = a_IniFile.GetValueSetF("Generator", "MultiStepMapRiverWidth", m_RiverWidthThreshold); - m_LandBiomesSize = (float)a_IniFile.GetValueSetI("Generator", "MultiStepMapLandBiomeSize", (int)m_LandBiomesSize); -} - - - - - -void cBioGenMultiStepMap::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) -{ - DecideOceanLandMushroom(a_ChunkX, a_ChunkZ, a_BiomeMap); - AddRivers(a_ChunkX, a_ChunkZ, a_BiomeMap); - ApplyTemperatureHumidity(a_ChunkX, a_ChunkZ, a_BiomeMap); -} - - - - - -void cBioGenMultiStepMap::DecideOceanLandMushroom(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) -{ - // Distorted Voronoi over 3 biomes, with mushroom having only a special occurence. - - // Prepare a distortion lookup table, by distorting a 5x5 area and using that as 1:4 zoom (linear interpolate): - int BaseZ = cChunkDef::Width * a_ChunkZ; - int BaseX = cChunkDef::Width * a_ChunkX; - int DistortX[cChunkDef::Width + 1][cChunkDef::Width + 1]; - int DistortZ[cChunkDef::Width + 1][cChunkDef::Width + 1]; - int DistortSize = m_OceanCellSize / 2; - 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], DistortSize); - } - LinearUpscale2DArrayInPlace(&DistortX[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4); - LinearUpscale2DArrayInPlace(&DistortZ[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4); - - // Prepare a 9x9 area of neighboring cell seeds - // (assuming that 7x7 cell area is larger than a chunk being generated) - const int NEIGHBORHOOD_SIZE = 4; // How many seeds in each direction to check - int CellX = BaseX / m_OceanCellSize; - int CellZ = BaseZ / m_OceanCellSize; - int SeedX[2 * NEIGHBORHOOD_SIZE + 1][2 * NEIGHBORHOOD_SIZE + 1]; - int SeedZ[2 * NEIGHBORHOOD_SIZE + 1][2 * NEIGHBORHOOD_SIZE + 1]; - EMCSBiome SeedV[2 * NEIGHBORHOOD_SIZE + 1][2 * NEIGHBORHOOD_SIZE + 1]; - for (int xc = 0; xc < 2 * NEIGHBORHOOD_SIZE + 1; xc++) - { - int RealCellX = xc + CellX - NEIGHBORHOOD_SIZE; - int CellBlockX = RealCellX * m_OceanCellSize; - for (int zc = 0; zc < 2 * NEIGHBORHOOD_SIZE + 1; zc++) - { - int RealCellZ = zc + CellZ - NEIGHBORHOOD_SIZE; - int CellBlockZ = RealCellZ * m_OceanCellSize; - int OffsetX = (m_Noise2.IntNoise3DInt(RealCellX, 16 * RealCellX + 32 * RealCellZ, RealCellZ) / 8) % m_OceanCellSize; - int OffsetZ = (m_Noise4.IntNoise3DInt(RealCellX, 32 * RealCellX - 16 * RealCellZ, RealCellZ) / 8) % m_OceanCellSize; - SeedX[xc][zc] = CellBlockX + OffsetX; - SeedZ[xc][zc] = CellBlockZ + OffsetZ; - SeedV[xc][zc] = (((m_Noise6.IntNoise3DInt(RealCellX, RealCellX - RealCellZ + 1000, RealCellZ) / 11) % 256) > 90) ? biOcean : ((EMCSBiome)(-1)); - } // for z - } // for x - - for (int xc = 1; xc < 2 * NEIGHBORHOOD_SIZE; xc++) for (int zc = 1; zc < 2 * NEIGHBORHOOD_SIZE; zc++) - { - if ( - (SeedV[xc ][zc] == biOcean) && - (SeedV[xc - 1][zc] == biOcean) && - (SeedV[xc + 1][zc] == biOcean) && - (SeedV[xc ][zc - 1] == biOcean) && - (SeedV[xc ][zc + 1] == biOcean) && - (SeedV[xc - 1][zc - 1] == biOcean) && - (SeedV[xc + 1][zc - 1] == biOcean) && - (SeedV[xc - 1][zc + 1] == biOcean) && - (SeedV[xc + 1][zc + 1] == biOcean) - ) - { - SeedV[xc][zc] = biMushroomIsland; - } - } - - // For each column find the nearest distorted cell and use its value as the biome: - int MushroomOceanThreshold = m_OceanCellSize * m_OceanCellSize * m_MushroomIslandSize / 1024; - int MushroomShoreThreshold = m_OceanCellSize * m_OceanCellSize * m_MushroomIslandSize / 2048; - for (int z = 0; z < cChunkDef::Width; z++) - { - for (int x = 0; x < cChunkDef::Width; x++) - { - int AbsoluteZ = DistortZ[x][z]; - int AbsoluteX = DistortX[x][z]; - int MinDist = m_OceanCellSize * m_OceanCellSize * 16; // There has to be a cell closer than this - EMCSBiome Biome = biPlains; - // Find the nearest cell seed: - for (int xs = 1; xs < 2 * NEIGHBORHOOD_SIZE; xs++) for (int zs = 1; zs < 2 * NEIGHBORHOOD_SIZE; zs++) - { - int Dist = (SeedX[xs][zs] - AbsoluteX) * (SeedX[xs][zs] - AbsoluteX) + (SeedZ[xs][zs] - AbsoluteZ) * (SeedZ[xs][zs] - AbsoluteZ); - if (Dist >= MinDist) - { - continue; - } - MinDist = Dist; - Biome = SeedV[xs][zs]; - // Shrink mushroom biome and add a shore: - if (Biome == biMushroomIsland) - { - if (Dist > MushroomOceanThreshold) - { - Biome = biOcean; - } - else if (Dist > MushroomShoreThreshold) - { - Biome = biMushroomShore; - } - } - } // for zs, xs - - cChunkDef::SetBiome(a_BiomeMap, x, z, Biome); - } // for x - } // for z -} - - - - - -void cBioGenMultiStepMap::AddRivers(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) -{ - for (int z = 0; z < cChunkDef::Width; z++) - { - float NoiseCoordZ = (float)(a_ChunkZ * cChunkDef::Width + z) / m_RiverCellSize; - for (int x = 0; x < cChunkDef::Width; x++) - { - if (cChunkDef::GetBiome(a_BiomeMap, x, z) != -1) - { - // Biome already set, skip this column - continue; - } - - float NoiseCoordX = (float)(a_ChunkX * cChunkDef::Width + x) / m_RiverCellSize; - - double Noise = m_Noise1.CubicNoise2D( NoiseCoordX, NoiseCoordZ); - Noise += 0.5 * m_Noise3.CubicNoise2D(2 * NoiseCoordX, 2 * NoiseCoordZ); - Noise += 0.1 * m_Noise5.CubicNoise2D(8 * NoiseCoordX, 8 * NoiseCoordZ); - - if ((Noise > 0) && (Noise < m_RiverWidthThreshold)) - { - cChunkDef::SetBiome(a_BiomeMap, x, z, biRiver); - } - } // for x - } // for z -} - - - - - -void cBioGenMultiStepMap::ApplyTemperatureHumidity(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) -{ - IntMap TemperatureMap; - IntMap HumidityMap; - BuildTemperatureHumidityMaps(a_ChunkX, a_ChunkZ, TemperatureMap, HumidityMap); - - FreezeWaterBiomes(a_BiomeMap, TemperatureMap); - DecideLandBiomes(a_BiomeMap, TemperatureMap, HumidityMap); -} - - - - - -void cBioGenMultiStepMap::Distort(int a_BlockX, int a_BlockZ, int & a_DistortedX, int & a_DistortedZ, int a_CellSize) -{ - double NoiseX = m_Noise3.CubicNoise2D( (float)a_BlockX / a_CellSize, (float)a_BlockZ / a_CellSize); - NoiseX += 0.5 * m_Noise2.CubicNoise2D(2 * (float)a_BlockX / a_CellSize, 2 * (float)a_BlockZ / a_CellSize); - NoiseX += 0.1 * m_Noise1.CubicNoise2D(16 * (float)a_BlockX / a_CellSize, 16 * (float)a_BlockZ / a_CellSize); - double NoiseZ = m_Noise6.CubicNoise2D( (float)a_BlockX / a_CellSize, (float)a_BlockZ / a_CellSize); - NoiseZ += 0.5 * m_Noise5.CubicNoise2D(2 * (float)a_BlockX / a_CellSize, 2 * (float)a_BlockZ / a_CellSize); - NoiseZ += 0.1 * m_Noise4.CubicNoise2D(16 * (float)a_BlockX / a_CellSize, 16 * (float)a_BlockZ / a_CellSize); - - a_DistortedX = a_BlockX + (int)(a_CellSize * 0.5 * NoiseX); - a_DistortedZ = a_BlockZ + (int)(a_CellSize * 0.5 * NoiseZ); -} - - - - - -void cBioGenMultiStepMap::BuildTemperatureHumidityMaps(int a_ChunkX, int a_ChunkZ, IntMap & a_TemperatureMap, IntMap & a_HumidityMap) -{ - // Linear interpolation over 8x8 blocks; use double for better precision: - DblMap TemperatureMap; - DblMap HumidityMap; - for (int z = 0; z < 17; z += 8) - { - float NoiseCoordZ = (float)(a_ChunkZ * cChunkDef::Width + z) / m_LandBiomesSize; - for (int x = 0; x < 17; x += 8) - { - float NoiseCoordX = (float)(a_ChunkX * cChunkDef::Width + x) / m_LandBiomesSize; - - double NoiseT = m_Noise1.CubicNoise2D( NoiseCoordX, NoiseCoordZ); - NoiseT += 0.5 * m_Noise2.CubicNoise2D(2 * NoiseCoordX, 2 * NoiseCoordZ); - NoiseT += 0.1 * m_Noise3.CubicNoise2D(8 * NoiseCoordX, 8 * NoiseCoordZ); - TemperatureMap[x + 17 * z] = NoiseT; - - double NoiseH = m_Noise4.CubicNoise2D( NoiseCoordX, NoiseCoordZ); - NoiseH += 0.5 * m_Noise5.CubicNoise2D(2 * NoiseCoordX, 2 * NoiseCoordZ); - NoiseH += 0.1 * m_Noise6.CubicNoise2D(8 * NoiseCoordX, 8 * NoiseCoordZ); - HumidityMap[x + 17 * z] = NoiseH; - } // for x - } // for z - LinearUpscale2DArrayInPlace(TemperatureMap, 17, 17, 8, 8); - LinearUpscale2DArrayInPlace(HumidityMap, 17, 17, 8, 8); - - // Re-map into integral values in [0 .. 255] range: - for (int idx = 0; idx < ARRAYCOUNT(a_TemperatureMap); idx++) - { - a_TemperatureMap[idx] = std::max(0, std::min(255, (int)(128 + TemperatureMap[idx] * 128))); - a_HumidityMap[idx] = std::max(0, std::min(255, (int)(128 + HumidityMap[idx] * 128))); - } -} - - - - - -void cBioGenMultiStepMap::DecideLandBiomes(cChunkDef::BiomeMap & a_BiomeMap, const IntMap & a_TemperatureMap, const IntMap & a_HumidityMap) -{ - static const EMCSBiome BiomeMap[] = - { - // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 - /* 0 */ biTundra, biTundra, biTundra, biTundra, biPlains, biPlains, biPlains, biPlains, biPlains, biPlains, biDesert, biDesert, biDesert, biDesert, biDesert, biDesert, - /* 1 */ biTundra, biTundra, biTundra, biTundra, biPlains, biPlains, biPlains, biPlains, biPlains, biPlains, biDesert, biDesert, biDesert, biDesert, biDesert, biDesert, - /* 2 */ biTundra, biTundra, biTundra, biTundra, biPlains, biExtremeHills, biPlains, biPlains, biPlains, biPlains, biDesert, biDesert, biDesertHills, biDesertHills, biDesert, biDesert, - /* 3 */ biTundra, biTundra, biTundra, biTundra, biExtremeHills, biExtremeHills, biPlains, biPlains, biPlains, biPlains, biDesert, biDesert, biDesertHills, biDesertHills, biDesert, biDesert, - /* 4 */ biTundra, biTundra, biIceMountains, biIceMountains, biExtremeHills, biExtremeHills, biPlains, biPlains, biPlains, biPlains, biForestHills, biForestHills, biExtremeHills, biExtremeHills, biDesertHills, biDesert, - /* 5 */ biTundra, biTundra, biIceMountains, biIceMountains, biExtremeHills, biExtremeHills, biPlains, biPlains, biPlains, biPlains, biForestHills, biForestHills, biExtremeHills, biExtremeHills, biDesertHills, biDesert, - /* 6 */ biTundra, biTundra, biIceMountains, biIceMountains, biForestHills, biForestHills, biForest, biForest, biForest, biForest, biForest, biForestHills, biExtremeHills, biExtremeHills, biPlains, biPlains, - /* 7 */ biTundra, biTundra, biIceMountains, biIceMountains, biForestHills, biForestHills, biForest, biForest, biForest, biForest, biForest, biForestHills, biExtremeHills, biExtremeHills, biPlains, biPlains, - /* 8 */ biTundra, biTundra, biTaiga, biTaiga, biForest, biForest, biForest, biForest, biForest, biForest, biForest, biForestHills, biExtremeHills, biExtremeHills, biPlains, biPlains, - /* 9 */ biTundra, biTundra, biTaiga, biTaiga, biForest, biForest, biForest, biForest, biForest, biForest, biForest, biForestHills, biExtremeHills, biExtremeHills, biPlains, biPlains, - /* 10 */ biTaiga, biTaiga, biTaiga, biIceMountains, biForestHills, biForestHills, biForest, biForest, biForest, biForest, biJungle, biJungle, biSwampland, biSwampland, biSwampland, biSwampland, - /* 11 */ biTaiga, biTaiga, biIceMountains, biIceMountains, biExtremeHills, biForestHills, biForest, biForest, biForest, biForest, biJungle, biJungle, biSwampland, biSwampland, biSwampland, biSwampland, - /* 12 */ biTaiga, biTaiga, biIceMountains, biIceMountains, biExtremeHills, biJungleHills, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biSwampland, biSwampland, biSwampland, biSwampland, - /* 13 */ biTaiga, biTaiga, biTaiga, biIceMountains, biJungleHills, biJungleHills, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biSwampland, biSwampland, biSwampland, biSwampland, - /* 14 */ biTaiga, biTaiga, biTaiga, biTaiga, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biSwampland, biSwampland, biSwampland, biSwampland, - /* 15 */ biTaiga, biTaiga, biTaiga, biTaiga, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biJungle, biSwampland, biSwampland, biSwampland, biSwampland, - } ; - for (int z = 0; z < cChunkDef::Width; z++) - { - int idxZ = 17 * z; - for (int x = 0; x < cChunkDef::Width; x++) - { - if (cChunkDef::GetBiome(a_BiomeMap, x, z) != -1) - { - // Already set before - continue; - } - int idx = idxZ + x; - int Temperature = a_TemperatureMap[idx] / 16; // -> [0..15] range - int Humidity = a_HumidityMap[idx] / 16; // -> [0..15] range - cChunkDef::SetBiome(a_BiomeMap, x, z, BiomeMap[Temperature + 16 * Humidity]); - } // for x - } // for z -} - - - - - -void cBioGenMultiStepMap::FreezeWaterBiomes(cChunkDef::BiomeMap & a_BiomeMap, const IntMap & a_TemperatureMap) -{ - int idx = 0; - for (int z = 0; z < cChunkDef::Width; z++) - { - for (int x = 0; x < cChunkDef::Width; x++, idx++) - { - if (a_TemperatureMap[idx] > 4 * 16) - { - // Not frozen - continue; - } - switch (cChunkDef::GetBiome(a_BiomeMap, x, z)) - { - case biRiver: cChunkDef::SetBiome(a_BiomeMap, x, z, biFrozenRiver); break; - case biOcean: cChunkDef::SetBiome(a_BiomeMap, x, z, biFrozenOcean); break; - } - } // for x - idx += 1; - } // for z -} - - - - |