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BiomeVisualiser: Added the TwoLevel biome generator.

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madmaxoft
2013-11-28 19:58:20 +01:00
parent 8acf0129e1
commit bdd86d7934
3 changed files with 233 additions and 0 deletions
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191
src/Generating/BioGen.cpp
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@@ -669,3 +669,194 @@ void cBioGenMultiStepMap::FreezeWaterBiomes(cChunkDef::BiomeMap & a_BiomeMap, co
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cBioGenTwoLevel:
cBioGenTwoLevel::cBioGenTwoLevel(int a_Seed) :
m_VoronoiLarge(a_Seed + 1000),
m_VoronoiSmall(a_Seed + 2000),
m_DistortX(a_Seed + 3000),
m_DistortZ(a_Seed + 4000),
m_Noise(a_Seed + 5000)
{
}
void cBioGenTwoLevel::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++)
{
int BlockX = BaseX + x * 4;
int BlockZ = BaseZ + z * 4;
float BlockXF = (float)(16 * BlockX) / 128;
float BlockZF = (float)(16 * BlockZ) / 128;
double NoiseX = m_Noise.CubicNoise3D(BlockXF / 16, BlockZF / 16, 1000);
NoiseX += 0.5 * m_Noise.CubicNoise3D(BlockXF / 8, BlockZF / 8, 2000);
NoiseX += 0.08 * m_Noise.CubicNoise3D(BlockXF, BlockZF, 3000);
double NoiseZ = m_Noise.CubicNoise3D(BlockXF / 16, BlockZF / 16, 4000);
NoiseZ += 0.5 * m_Noise.CubicNoise3D(BlockXF / 8, BlockZF / 8, 5000);
NoiseZ += 0.08 * m_Noise.CubicNoise3D(BlockXF, BlockZF, 6000);
DistortX[4 * x][4 * z] = BlockX + (int)(64 * NoiseX);
DistortZ[4 * x][4 * z] = BlockZ + (int)(64 * NoiseZ);
}
LinearUpscale2DArrayInPlace(&DistortX[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4);
LinearUpscale2DArrayInPlace(&DistortZ[0][0], cChunkDef::Width + 1, cChunkDef::Width + 1, 4, 4);
// Apply distortion to each block coord, then query the voronoi maps for biome group and biome index and choose biome based on that:
for (int z = 0; z < cChunkDef::Width; z++)
{
for (int x = 0; x < cChunkDef::Width; x++)
{
int BiomeGroup = m_VoronoiLarge.GetValueAt(DistortX[x][z], DistortZ[x][z]) / 7;
int MinDist1, MinDist2;
int BiomeIdx = m_VoronoiSmall.GetValueAt(DistortX[x][z], DistortZ[x][z], MinDist1, MinDist2) / 11;
cChunkDef::SetBiome(a_BiomeMap, x, z, SelectBiome(BiomeGroup, BiomeIdx, (MinDist1 < MinDist2 / 4) ? 0 : 1));
}
}
}
EMCSBiome cBioGenTwoLevel::SelectBiome(int a_BiomeGroup, int a_BiomeIdx, int a_DistLevel)
{
// TODO: Move this into settings
struct BiomeLevels
{
EMCSBiome InnerBiome;
EMCSBiome OuterBiome;
} ;
static BiomeLevels bgOcean[] =
{
{ biOcean, biOcean, },
{ biOcean, biOcean, },
{ biOcean, biOcean, },
{ biOcean, biOcean, },
{ biOcean, biDeepOcean, },
{ biOcean, biDeepOcean, },
{ biDeepOcean, biDeepOcean, },
{ biDeepOcean, biDeepOcean, },
{ biDeepOcean, biDeepOcean, },
{ biDeepOcean, biDeepOcean, },
{ biMushroomIsland, biMushroomShore, }
} ;
static BiomeLevels bgFrozen[] =
{
{ biIcePlains, biIcePlains, },
{ biIceMountains, biIceMountains, },
{ biFrozenOcean, biFrozenRiver, },
{ biColdTaiga, biColdTaiga, },
{ biColdTaigaHills, biColdTaigaHills, },
{ biColdTaigaM, biColdTaigaM, },
{ biIcePlainsSpikes, biIcePlainsSpikes, },
{ biExtremeHills, biExtremeHillsEdge, },
{ biExtremeHillsPlus, biExtremeHillsEdge, },
{ biExtremeHillsPlusM, biExtremeHillsPlusM, },
} ;
static BiomeLevels bgTemperate[] =
{
{ biBirchForestHills, biBirchForest, },
{ biBirchForest, biBirchForest, },
{ biBirchForestHillsM, biBirchForestM, },
{ biBirchForestM, biBirchForestM, },
{ biForest, biForestHills, },
{ biFlowerForest, biFlowerForest, },
{ biRoofedForest, biForest, },
{ biRoofedForest, biRoofedForest, },
{ biRoofedForestM, biForest, },
{ biPlains, biPlains, },
{ biSunflowerPlains, biSunflowerPlains, },
{ biSwampland, biSwampland, },
{ biSwamplandM, biSwamplandM, },
} ;
static BiomeLevels bgWarm[] =
{
{ biDesertHills, biDesert, },
{ biDesert, biDesert, },
{ biDesertM, biDesertM, },
{ biSavannaPlateau, biSavanna, },
{ biSavanna, biSavanna, },
{ biSavannaM, biSavannaM, },
} ;
static BiomeLevels bgMesa[] =
{
{ biMesaPlateau, biMesa, },
{ biMesaPlateauF, biMesa, },
{ biMesaPlateauFM, biMesa, },
{ biMesaPlateauM, biMesa, },
{ biMesaBryce, biMesaBryce, },
{ biSavanna, biSavanna, },
{ biSavannaPlateau, biSavanna, },
} ;
static BiomeLevels bgConifers[] =
{
{ biTaiga, biTaiga, },
{ biTaigaM, biTaigaM, },
{ biMegaTaiga, biMegaTaiga, },
{ biMegaSpruceTaiga, biMegaSpruceTaiga, },
{ biMegaSpruceTaigaHills, biMegaSpruceTaiga, }
} ;
static BiomeLevels bgDenseTrees[] =
{
{ biJungleHills, biJungle, },
{ biJungle, biJungleEdge, },
{ biJungleM, biJungleEdgeM, },
} ;
static struct
{
BiomeLevels * Biomes;
size_t Count;
} BiomeGroups[] =
{
{ bgOcean, ARRAYCOUNT(bgOcean), },
{ bgOcean, ARRAYCOUNT(bgOcean), },
{ bgFrozen, ARRAYCOUNT(bgFrozen), },
{ bgFrozen, ARRAYCOUNT(bgFrozen), },
{ bgTemperate, ARRAYCOUNT(bgTemperate), },
{ bgTemperate, ARRAYCOUNT(bgTemperate), },
{ bgConifers, ARRAYCOUNT(bgConifers), },
{ bgConifers, ARRAYCOUNT(bgConifers), },
{ bgWarm, ARRAYCOUNT(bgWarm), },
{ bgWarm, ARRAYCOUNT(bgWarm), },
{ bgMesa, ARRAYCOUNT(bgMesa), },
{ bgDenseTrees, ARRAYCOUNT(bgDenseTrees), },
} ;
size_t Group = a_BiomeGroup % ARRAYCOUNT(BiomeGroups);
size_t Index = a_BiomeIdx % BiomeGroups[Group].Count;
return (a_DistLevel > 0) ? BiomeGroups[Group].Biomes[Index].InnerBiome : BiomeGroups[Group].Biomes[Index].OuterBiome;
}
void cBioGenTwoLevel::InitializeBiomeGen(cIniFile & a_IniFile)
{
// TODO: Read these from a file
m_VoronoiLarge.SetCellSize(1024);
m_VoronoiSmall.SetCellSize(128);
m_DistortX.AddOctave(0.01f, 16);
m_DistortX.AddOctave(0.005f, 8);
m_DistortX.AddOctave(0.0025f, 4);
m_DistortZ.AddOctave(0.01f, 16);
m_DistortZ.AddOctave(0.005f, 8);
m_DistortZ.AddOctave(0.0025f, 4);
}