From 9db9445e9fec2ce0ab52434e50cc21f30d4ef313 Mon Sep 17 00:00:00 2001 From: madmaxoft Date: Fri, 20 Jun 2014 17:10:18 +0200 Subject: Optimized Voronoi calculation. Fixes #818. --- src/Generating/BioGen.cpp | 21 +++++++++++++-------- src/Generating/BioGen.h | 7 ++++++- 2 files changed, 19 insertions(+), 9 deletions(-) (limited to 'src/Generating') diff --git a/src/Generating/BioGen.cpp b/src/Generating/BioGen.cpp index 3e3a034b2..a17555f37 100644 --- a/src/Generating/BioGen.cpp +++ b/src/Generating/BioGen.cpp @@ -747,7 +747,12 @@ cBioGenTwoLevel::cBioGenTwoLevel(int a_Seed) : m_VoronoiSmall(a_Seed + 2000), m_DistortX(a_Seed + 3000), m_DistortZ(a_Seed + 4000), - m_Noise(a_Seed + 5000) + m_Noise1(a_Seed + 5001), + m_Noise2(a_Seed + 5002), + m_Noise3(a_Seed + 5003), + m_Noise4(a_Seed + 5004), + m_Noise5(a_Seed + 5005), + m_Noise6(a_Seed + 5006) { } @@ -769,12 +774,12 @@ void cBioGenTwoLevel::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap 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); + double NoiseX = m_Noise1.CubicNoise2D(BlockXF / 16, BlockZF / 16); + NoiseX += 0.5 * m_Noise2.CubicNoise2D(BlockXF / 8, BlockZF / 8); + NoiseX += 0.08 * m_Noise3.CubicNoise2D(BlockXF, BlockZF); + double NoiseZ = m_Noise4.CubicNoise2D(BlockXF / 16, BlockZF / 16); + NoiseZ += 0.5 * m_Noise5.CubicNoise2D(BlockXF / 8, BlockZF / 8); + NoiseZ += 0.08 * m_Noise6.CubicNoise2D(BlockXF, BlockZF); DistortX[4 * x][4 * z] = BlockX + (int)(64 * NoiseX); DistortZ[4 * x][4 * z] = BlockZ + (int)(64 * NoiseZ); @@ -788,8 +793,8 @@ void cBioGenTwoLevel::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap { for (int x = 0; x < cChunkDef::Width; x++) { - int BiomeGroup = m_VoronoiLarge.GetValueAt(DistortX[x][z], DistortZ[x][z]) / 7; int MinDist1, MinDist2; + int BiomeGroup = m_VoronoiLarge.GetValueAt(DistortX[x][z], DistortZ[x][z], MinDist1, MinDist2) / 7; 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)); } diff --git a/src/Generating/BioGen.h b/src/Generating/BioGen.h index 8bd460d8f..227ec97d7 100644 --- a/src/Generating/BioGen.h +++ b/src/Generating/BioGen.h @@ -261,7 +261,12 @@ protected: /// The noise used to distort the inupt Z coord cPerlinNoise m_DistortZ; - cNoise m_Noise; + cNoise m_Noise1; + cNoise m_Noise2; + cNoise m_Noise3; + cNoise m_Noise4; + cNoise m_Noise5; + cNoise m_Noise6; // cBiomeGen overrides: -- cgit v1.2.3