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author | Mattes D <github@xoft.cz> | 2014-11-12 21:24:26 +0100 |
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committer | Mattes D <github@xoft.cz> | 2014-11-12 21:24:26 +0100 |
commit | 5fb2526e0739fa27d925a686669f2c3aef56e825 (patch) | |
tree | c548202392d5f2cf12ee7b23a45c9f0a9026d9c6 /src/Generating/Noise3DGenerator.cpp | |
parent | BiomalNoise3D: Added a few biomes. (diff) | |
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Diffstat (limited to 'src/Generating/Noise3DGenerator.cpp')
-rw-r--r-- | src/Generating/Noise3DGenerator.cpp | 197 |
1 files changed, 42 insertions, 155 deletions
diff --git a/src/Generating/Noise3DGenerator.cpp b/src/Generating/Noise3DGenerator.cpp index 4e45aa18b..da4632de4 100644 --- a/src/Generating/Noise3DGenerator.cpp +++ b/src/Generating/Noise3DGenerator.cpp @@ -458,110 +458,53 @@ void cNoise3DComposable::GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_ChunkZ) NOISE_DATATYPE BaseNoise[5 * 5]; NOISE_DATATYPE BlockX = static_cast<NOISE_DATATYPE>(a_ChunkX * cChunkDef::Width); NOISE_DATATYPE BlockZ = static_cast<NOISE_DATATYPE>(a_ChunkZ * cChunkDef::Width); - // Note that we have to swap the coords, because noise generator uses [x + SizeX * y + SizeX * SizeY * z] ordering and we want "BlockY" to be "z": - m_ChoiceNoise.Generate3D (ChoiceNoise, 5, 5, 33, BlockX / m_ChoiceFrequencyX, (BlockX + 17) / m_ChoiceFrequencyX, BlockZ / m_ChoiceFrequencyZ, (BlockZ + 17) / m_ChoiceFrequencyZ, 0, 257 / m_ChoiceFrequencyY, Workspace); - m_DensityNoiseA.Generate3D(DensityNoiseA, 5, 5, 33, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, 0, 257 / m_FrequencyY, Workspace); - m_DensityNoiseB.Generate3D(DensityNoiseB, 5, 5, 33, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, 0, 257 / m_FrequencyY, Workspace); + // Note that we have to swap the X and Y coords, because noise generator uses [x + SizeX * y + SizeX * SizeY * z] ordering and we want "BlockY" to be "x": + m_ChoiceNoise.Generate3D (ChoiceNoise, 33, 5, 5, 0, 257 / m_ChoiceFrequencyY, BlockX / m_ChoiceFrequencyX, (BlockX + 17) / m_ChoiceFrequencyX, BlockZ / m_ChoiceFrequencyZ, (BlockZ + 17) / m_ChoiceFrequencyZ, Workspace); + m_DensityNoiseA.Generate3D(DensityNoiseA, 33, 5, 5, 0, 257 / m_FrequencyY, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, Workspace); + m_DensityNoiseB.Generate3D(DensityNoiseB, 33, 5, 5, 0, 257 / m_FrequencyY, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, Workspace); m_BaseNoise.Generate2D (BaseNoise, 5, 5, BlockX / m_BaseFrequencyX, (BlockX + 17) / m_BaseFrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, Workspace); // Calculate the final noise based on the partial noises: - for (int y = 0; y < 33; y++) + for (int z = 0; z < 5; z++) { - NOISE_DATATYPE AddHeight = (static_cast<NOISE_DATATYPE>(y * 8) - m_MidPoint) * m_HeightAmplification; - - // If "underground", make the terrain smoother by forcing the vertical linear gradient into steeper slope: - if (AddHeight < 0) - { - AddHeight *= 4; - } - - for (int z = 0; z < 5; z++) + for (int x = 0; x < 5; x++) { - for (int x = 0; x < 5; x++) + NOISE_DATATYPE curBaseNoise = BaseNoise[x + 5 * z]; + for (int y = 0; y < 33; y++) { - int idx = x + 5 * z + 5 * 5 * y; - Workspace[idx] = ClampedLerp(DensityNoiseA[idx], DensityNoiseB[idx], 8 * (ChoiceNoise[idx] + 0.5f)) + AddHeight + BaseNoise[x + 5 * z]; + NOISE_DATATYPE AddHeight = (static_cast<NOISE_DATATYPE>(y * 8) - m_MidPoint) * m_HeightAmplification; + + // If "underground", make the terrain smoother by forcing the vertical linear gradient into steeper slope: + if (AddHeight < 0) + { + AddHeight *= 4; + } + + int idx = 33 * x + 33 * 5 * z + y; + Workspace[idx] = ClampedLerp(DensityNoiseA[idx], DensityNoiseB[idx], 8 * (ChoiceNoise[idx] + 0.5f)) + AddHeight + curBaseNoise; } } } - LinearUpscale3DArray<NOISE_DATATYPE>(Workspace, 5, 5, 33, m_NoiseArray, 4, 4, 8); + LinearUpscale3DArray<NOISE_DATATYPE>(Workspace, 33, 5, 5, m_NoiseArray, 8, 4, 4); } -void cNoise3DComposable::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) +void cNoise3DComposable::GenShape(int a_ChunkX, int a_ChunkZ, cChunkDesc::Shape & a_Shape) { GenerateNoiseArrayIfNeeded(a_ChunkX, a_ChunkZ); + // Translate the noise array into Shape: for (int z = 0; z < cChunkDef::Width; z++) { for (int x = 0; x < cChunkDef::Width; x++) { - cChunkDef::SetHeight(a_HeightMap, x, z, m_SeaLevel); - for (int y = cChunkDef::Height - 1; y > m_SeaLevel; y--) - { - if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= m_AirThreshold) - { - cChunkDef::SetHeight(a_HeightMap, x, z, y); - break; - } - } // for y - } // for x - } // for z -} - - - - - -void cNoise3DComposable::ComposeTerrain(cChunkDesc & a_ChunkDesc) -{ - GenerateNoiseArrayIfNeeded(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ()); - - a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0); - - // Make basic terrain composition: - for (int z = 0; z < cChunkDef::Width; z++) - { - for (int x = 0; x < cChunkDef::Width; x++) - { - int LastAir = a_ChunkDesc.GetHeight(x, z) + 1; - bool HasHadWater = false; - for (int y = LastAir; y < m_SeaLevel; y++) + for (int y = 0; y < cChunkDef::Height; y++) { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER); + a_Shape[y + x * 256 + z * 256 * 16] = (m_NoiseArray[y + 257 * x + 257 * 17 * z] > m_AirThreshold) ? 0 : 1; } - for (int y = LastAir - 1; y > 0; y--) - { - if (m_NoiseArray[x + 17 * z + 17 * 17 * y] > m_AirThreshold) - { - // "air" part - LastAir = y; - if (y < m_SeaLevel) - { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER); - HasHadWater = true; - } - continue; - } - // "ground" part: - if (LastAir - y > 4) - { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STONE); - continue; - } - if (HasHadWater) - { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND); - } - else - { - a_ChunkDesc.SetBlockType(x, y, z, (LastAir == y + 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT); - } - } // for y - a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK); } // for x } // for z } @@ -671,21 +614,23 @@ void cBiomalNoise3DComposable::GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_Ch NOISE_DATATYPE BaseNoise[5 * 5]; NOISE_DATATYPE BlockX = static_cast<NOISE_DATATYPE>(a_ChunkX * cChunkDef::Width); NOISE_DATATYPE BlockZ = static_cast<NOISE_DATATYPE>(a_ChunkZ * cChunkDef::Width); - // Note that we have to swap the coords, because noise generator uses [x + SizeX * y + SizeX * SizeY * z] ordering and we want "BlockY" to be "z": - m_ChoiceNoise.Generate3D (ChoiceNoise, 5, 5, 33, BlockX / m_ChoiceFrequencyX, (BlockX + 17) / m_ChoiceFrequencyX, BlockZ / m_ChoiceFrequencyZ, (BlockZ + 17) / m_ChoiceFrequencyZ, 0, 257 / m_ChoiceFrequencyY, Workspace); - m_DensityNoiseA.Generate3D(DensityNoiseA, 5, 5, 33, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, 0, 257 / m_FrequencyY, Workspace); - m_DensityNoiseB.Generate3D(DensityNoiseB, 5, 5, 33, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, 0, 257 / m_FrequencyY, Workspace); + // Note that we have to swap the X and Y coords, because noise generator uses [x + SizeX * y + SizeX * SizeY * z] ordering and we want "BlockY" to be "x": + m_ChoiceNoise.Generate3D (ChoiceNoise, 33, 5, 5, 0, 257 / m_ChoiceFrequencyY, BlockX / m_ChoiceFrequencyX, (BlockX + 17) / m_ChoiceFrequencyX, BlockZ / m_ChoiceFrequencyZ, (BlockZ + 17) / m_ChoiceFrequencyZ, Workspace); + m_DensityNoiseA.Generate3D(DensityNoiseA, 33, 5, 5, 0, 257 / m_FrequencyY, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, Workspace); + m_DensityNoiseB.Generate3D(DensityNoiseB, 33, 5, 5, 0, 257 / m_FrequencyY, BlockX / m_FrequencyX, (BlockX + 17) / m_FrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, Workspace); m_BaseNoise.Generate2D (BaseNoise, 5, 5, BlockX / m_BaseFrequencyX, (BlockX + 17) / m_BaseFrequencyX, BlockZ / m_FrequencyZ, (BlockZ + 17) / m_FrequencyZ, Workspace); // Calculate the final noise based on the partial noises: - for (int y = 0; y < 33; y++) + for (int z = 0; z < 5; z++) { - NOISE_DATATYPE BlockHeight = static_cast<NOISE_DATATYPE>(y * 8); - for (int z = 0; z < 5; z++) + for (int x = 0; x < 5; x++) { - for (int x = 0; x < 5; x++) + NOISE_DATATYPE curMidPoint = MidPoint[x + 5 * z]; + NOISE_DATATYPE curHeightAmp = HeightAmp[x + 5 * z]; + NOISE_DATATYPE curBaseNoise = BaseNoise[x + 5 * z]; + for (int y = 0; y < 33; y++) { - NOISE_DATATYPE AddHeight = (BlockHeight - MidPoint[x + 5 * z]) * HeightAmp[x + 5 * z]; + NOISE_DATATYPE AddHeight = (static_cast<NOISE_DATATYPE>(y * 8) - curMidPoint) * curHeightAmp; // If "underground", make the terrain smoother by forcing the vertical linear gradient into steeper slope: if (AddHeight < 0) @@ -693,12 +638,12 @@ void cBiomalNoise3DComposable::GenerateNoiseArrayIfNeeded(int a_ChunkX, int a_Ch AddHeight *= 4; } - int idx = x + 5 * z + 5 * 5 * y; - Workspace[idx] = ClampedLerp(DensityNoiseA[idx], DensityNoiseB[idx], 8 * (ChoiceNoise[idx] + 0.5f)) + AddHeight + BaseNoise[x + 5 * z]; + int idx = 33 * x + y + 33 * 5 * z; + Workspace[idx] = ClampedLerp(DensityNoiseA[idx], DensityNoiseB[idx], 8 * (ChoiceNoise[idx] + 0.5f)) + AddHeight + curBaseNoise; } } } - LinearUpscale3DArray<NOISE_DATATYPE>(Workspace, 5, 5, 33, m_NoiseArray, 4, 4, 8); + LinearUpscale3DArray<NOISE_DATATYPE>(Workspace, 33, 5, 5, m_NoiseArray, 8, 4, 4); } @@ -778,78 +723,19 @@ void cBiomalNoise3DComposable::GetBiomeParams(EMCSBiome a_Biome, NOISE_DATATYPE - -void cBiomalNoise3DComposable::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) +void cBiomalNoise3DComposable::GenShape(int a_ChunkX, int a_ChunkZ, cChunkDesc::Shape & a_Shape) { GenerateNoiseArrayIfNeeded(a_ChunkX, a_ChunkZ); + // Translate the noise array into Shape: for (int z = 0; z < cChunkDef::Width; z++) { for (int x = 0; x < cChunkDef::Width; x++) { - cChunkDef::SetHeight(a_HeightMap, x, z, m_SeaLevel); - for (int y = cChunkDef::Height - 1; y > m_SeaLevel; y--) - { - if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= m_AirThreshold) - { - cChunkDef::SetHeight(a_HeightMap, x, z, y); - break; - } - } // for y - } // for x - } // for z -} - - - - - -void cBiomalNoise3DComposable::ComposeTerrain(cChunkDesc & a_ChunkDesc) -{ - GenerateNoiseArrayIfNeeded(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ()); - - a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0); - - // Make basic terrain composition: - for (int z = 0; z < cChunkDef::Width; z++) - { - for (int x = 0; x < cChunkDef::Width; x++) - { - int LastAir = a_ChunkDesc.GetHeight(x, z) + 1; - bool HasHadWater = false; - for (int y = LastAir; y < m_SeaLevel; y++) + for (int y = 0; y < cChunkDef::Height; y++) { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER); + a_Shape[y + x * 256 + z * 256 * 16] = (m_NoiseArray[y + 257 * x + 257 * 17 * z] > m_AirThreshold) ? 0 : 1; } - for (int y = LastAir - 1; y > 0; y--) - { - if (m_NoiseArray[x + 17 * z + 17 * 17 * y] > m_AirThreshold) - { - // "air" part - LastAir = y; - if (y < m_SeaLevel) - { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STATIONARY_WATER); - HasHadWater = true; - } - continue; - } - // "ground" part: - if (LastAir - y > 4) - { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_STONE); - continue; - } - if (HasHadWater) - { - a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SAND); - } - else - { - a_ChunkDesc.SetBlockType(x, y, z, (LastAir == y + 1) ? E_BLOCK_GRASS : E_BLOCK_DIRT); - } - } // for y - a_ChunkDesc.SetBlockType(x, 0, z, E_BLOCK_BEDROCK); } // for x } // for z } @@ -857,3 +743,4 @@ void cBiomalNoise3DComposable::ComposeTerrain(cChunkDesc & a_ChunkDesc) + |