BiomeVisualiser: Added the TwoLevel biome generator.
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madmaxoft
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8acf0129e1
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bdd86d7934
@ -84,6 +84,10 @@ void cBiomeViewWnd::InitBiomeView(void)
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{
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m_BiomeGen = new cBioGenDistortedVoronoi(Seed);
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}
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else if (NoCaseCompare(BiomeGenName, "twolevel") == 0)
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{
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m_BiomeGen = new cBioGenTwoLevel(Seed);
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}
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else
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{
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if (NoCaseCompare(BiomeGenName, "multistepmap") != 0)
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@ -669,3 +669,194 @@ void cBioGenMultiStepMap::FreezeWaterBiomes(cChunkDef::BiomeMap & a_BiomeMap, co
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// cBioGenTwoLevel:
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cBioGenTwoLevel::cBioGenTwoLevel(int a_Seed) :
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m_VoronoiLarge(a_Seed + 1000),
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m_VoronoiSmall(a_Seed + 2000),
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m_DistortX(a_Seed + 3000),
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m_DistortZ(a_Seed + 4000),
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m_Noise(a_Seed + 5000)
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{
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}
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void cBioGenTwoLevel::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap)
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{
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int BaseZ = cChunkDef::Width * a_ChunkZ;
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int BaseX = cChunkDef::Width * a_ChunkX;
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// Distortions for linear interpolation:
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int DistortX[cChunkDef::Width + 1][cChunkDef::Width + 1];
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int DistortZ[cChunkDef::Width + 1][cChunkDef::Width + 1];
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for (int x = 0; x <= 4; x++) for (int z = 0; z <= 4; z++)
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{
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int BlockX = BaseX + x * 4;
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int BlockZ = BaseZ + z * 4;
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float BlockXF = (float)(16 * BlockX) / 128;
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float BlockZF = (float)(16 * BlockZ) / 128;
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double NoiseX = m_Noise.CubicNoise3D(BlockXF / 16, BlockZF / 16, 1000);
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NoiseX += 0.5 * m_Noise.CubicNoise3D(BlockXF / 8, BlockZF / 8, 2000);
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NoiseX += 0.08 * m_Noise.CubicNoise3D(BlockXF, BlockZF, 3000);
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double NoiseZ = m_Noise.CubicNoise3D(BlockXF / 16, BlockZF / 16, 4000);
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NoiseZ += 0.5 * m_Noise.CubicNoise3D(BlockXF / 8, BlockZF / 8, 5000);
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NoiseZ += 0.08 * m_Noise.CubicNoise3D(BlockXF, BlockZF, 6000);
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DistortX[4 * x][4 * z] = BlockX + (int)(64 * NoiseX);
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DistortZ[4 * x][4 * z] = BlockZ + (int)(64 * NoiseZ);
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}
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LinearUpscale2DArrayInPlace(&DistortX[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4);
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LinearUpscale2DArrayInPlace(&DistortZ[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4);
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// Apply distortion to each block coord, then query the voronoi maps for biome group and biome index and choose biome based on that:
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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int BiomeGroup = m_VoronoiLarge.GetValueAt(DistortX[x][z], DistortZ[x][z]) / 7;
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int MinDist1, MinDist2;
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int BiomeIdx = m_VoronoiSmall.GetValueAt(DistortX[x][z], DistortZ[x][z], MinDist1, MinDist2) / 11;
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cChunkDef::SetBiome(a_BiomeMap, x, z, SelectBiome(BiomeGroup, BiomeIdx, (MinDist1 < MinDist2 / 4) ? 0 : 1));
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}
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}
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}
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EMCSBiome cBioGenTwoLevel::SelectBiome(int a_BiomeGroup, int a_BiomeIdx, int a_DistLevel)
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{
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// TODO: Move this into settings
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struct BiomeLevels
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{
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EMCSBiome InnerBiome;
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EMCSBiome OuterBiome;
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} ;
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static BiomeLevels bgOcean[] =
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{
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{ biOcean, biOcean, },
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{ biOcean, biOcean, },
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{ biOcean, biOcean, },
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{ biOcean, biOcean, },
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{ biOcean, biDeepOcean, },
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{ biOcean, biDeepOcean, },
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{ biDeepOcean, biDeepOcean, },
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{ biDeepOcean, biDeepOcean, },
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{ biDeepOcean, biDeepOcean, },
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{ biDeepOcean, biDeepOcean, },
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{ biMushroomIsland, biMushroomShore, }
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} ;
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static BiomeLevels bgFrozen[] =
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{
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{ biIcePlains, biIcePlains, },
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{ biIceMountains, biIceMountains, },
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{ biFrozenOcean, biFrozenRiver, },
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{ biColdTaiga, biColdTaiga, },
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{ biColdTaigaHills, biColdTaigaHills, },
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{ biColdTaigaM, biColdTaigaM, },
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{ biIcePlainsSpikes, biIcePlainsSpikes, },
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{ biExtremeHills, biExtremeHillsEdge, },
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{ biExtremeHillsPlus, biExtremeHillsEdge, },
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{ biExtremeHillsPlusM, biExtremeHillsPlusM, },
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} ;
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static BiomeLevels bgTemperate[] =
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{
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{ biBirchForestHills, biBirchForest, },
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{ biBirchForest, biBirchForest, },
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{ biBirchForestHillsM, biBirchForestM, },
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{ biBirchForestM, biBirchForestM, },
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{ biForest, biForestHills, },
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{ biFlowerForest, biFlowerForest, },
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{ biRoofedForest, biForest, },
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{ biRoofedForest, biRoofedForest, },
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{ biRoofedForestM, biForest, },
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{ biPlains, biPlains, },
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{ biSunflowerPlains, biSunflowerPlains, },
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{ biSwampland, biSwampland, },
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{ biSwamplandM, biSwamplandM, },
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} ;
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static BiomeLevels bgWarm[] =
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{
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{ biDesertHills, biDesert, },
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{ biDesert, biDesert, },
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{ biDesertM, biDesertM, },
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{ biSavannaPlateau, biSavanna, },
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{ biSavanna, biSavanna, },
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{ biSavannaM, biSavannaM, },
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} ;
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static BiomeLevels bgMesa[] =
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{
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{ biMesaPlateau, biMesa, },
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{ biMesaPlateauF, biMesa, },
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{ biMesaPlateauFM, biMesa, },
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{ biMesaPlateauM, biMesa, },
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{ biMesaBryce, biMesaBryce, },
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{ biSavanna, biSavanna, },
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{ biSavannaPlateau, biSavanna, },
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} ;
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static BiomeLevels bgConifers[] =
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{
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{ biTaiga, biTaiga, },
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{ biTaigaM, biTaigaM, },
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{ biMegaTaiga, biMegaTaiga, },
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{ biMegaSpruceTaiga, biMegaSpruceTaiga, },
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{ biMegaSpruceTaigaHills, biMegaSpruceTaiga, }
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} ;
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static BiomeLevels bgDenseTrees[] =
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{
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{ biJungleHills, biJungle, },
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{ biJungle, biJungleEdge, },
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{ biJungleM, biJungleEdgeM, },
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} ;
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static struct
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{
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BiomeLevels * Biomes;
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size_t Count;
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} BiomeGroups[] =
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{
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{ bgOcean, ARRAYCOUNT(bgOcean), },
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{ bgOcean, ARRAYCOUNT(bgOcean), },
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{ bgFrozen, ARRAYCOUNT(bgFrozen), },
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{ bgFrozen, ARRAYCOUNT(bgFrozen), },
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{ bgTemperate, ARRAYCOUNT(bgTemperate), },
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{ bgTemperate, ARRAYCOUNT(bgTemperate), },
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{ bgConifers, ARRAYCOUNT(bgConifers), },
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{ bgConifers, ARRAYCOUNT(bgConifers), },
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{ bgWarm, ARRAYCOUNT(bgWarm), },
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{ bgWarm, ARRAYCOUNT(bgWarm), },
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{ bgMesa, ARRAYCOUNT(bgMesa), },
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{ bgDenseTrees, ARRAYCOUNT(bgDenseTrees), },
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} ;
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size_t Group = a_BiomeGroup % ARRAYCOUNT(BiomeGroups);
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size_t Index = a_BiomeIdx % BiomeGroups[Group].Count;
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return (a_DistLevel > 0) ? BiomeGroups[Group].Biomes[Index].InnerBiome : BiomeGroups[Group].Biomes[Index].OuterBiome;
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}
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void cBioGenTwoLevel::InitializeBiomeGen(cIniFile & a_IniFile)
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{
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// TODO: Read these from a file
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m_VoronoiLarge.SetCellSize(1024);
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m_VoronoiSmall.SetCellSize(128);
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m_DistortX.AddOctave(0.01f, 16);
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m_DistortX.AddOctave(0.005f, 8);
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m_DistortX.AddOctave(0.0025f, 4);
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m_DistortZ.AddOctave(0.01f, 16);
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m_DistortZ.AddOctave(0.005f, 8);
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m_DistortZ.AddOctave(0.0025f, 4);
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}
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@ -239,3 +239,41 @@ protected:
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class cBioGenTwoLevel :
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public cBiomeGen
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{
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typedef cBiomeGen super;
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public:
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cBioGenTwoLevel(int a_Seed);
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protected:
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/// The Voronoi map that decides the groups of biomes
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cVoronoiMap m_VoronoiLarge;
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/// The Voronoi map that decides biomes inside individual biome groups
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cVoronoiMap m_VoronoiSmall;
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/// The noise used to distort the input X coord
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cPerlinNoise m_DistortX;
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/// The noise used to distort the inupt Z coord
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cPerlinNoise m_DistortZ;
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cNoise m_Noise;
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// cBiomeGen overrides:
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virtual void GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override;
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virtual void InitializeBiomeGen(cIniFile & a_IniFile) override;
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/// Selects biome from the specified biome group, based on the specified index.
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/// Note that both params may overflow
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/// a_DistLevel is either 0 or 1; zero when it is at the edge of the small Voronoi cell, 1 near the center
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EMCSBiome SelectBiome(int a_BiomeGroup, int a_BiomeIdx, int a_DistLevel);
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} ;
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