diff options
Diffstat (limited to '')
| -rw-r--r-- | source/Generating/DistortedHeightmap.cpp | 7 | ||||
| -rw-r--r-- | source/Generating/DistortedHeightmap.h | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/source/Generating/DistortedHeightmap.cpp b/source/Generating/DistortedHeightmap.cpp index b495aab22..275acb4ab 100644 --- a/source/Generating/DistortedHeightmap.cpp +++ b/source/Generating/DistortedHeightmap.cpp @@ -85,6 +85,7 @@ void cDistortedHeightmap::PrepareState(int a_ChunkX, int a_ChunkZ) m_CurChunkX = a_ChunkX;
m_CurChunkZ = a_ChunkZ;
+ m_HeightGen.GenHeightMap(a_ChunkX, a_ChunkZ, m_CurChunkHeights);
GenerateNoiseArray(m_NoiseArrayX, m_Noise1, m_Noise2, m_Noise3);
UpdateDistortAmps();
}
@@ -236,6 +237,12 @@ int cDistortedHeightmap::GetHeightmapAt(NOISE_DATATYPE a_X, NOISE_DATATYPE a_Z) int ChunkZ = (int)floor(a_Z / (NOISE_DATATYPE)16);
int RelX = (int)(a_X - (NOISE_DATATYPE)ChunkX * cChunkDef::Width);
int RelZ = (int)(a_Z - (NOISE_DATATYPE)ChunkZ * cChunkDef::Width);
+
+ // If we're withing the same chunk, return the pre-cached heightmap:
+ if ((ChunkX == m_CurChunkX) && (ChunkZ == m_CurChunkZ))
+ {
+ return cChunkDef::GetHeight(m_CurChunkHeights, RelX, RelZ);
+ }
cChunkDef::HeightMap Heightmap;
m_HeightGen.GenHeightMap(ChunkX, ChunkZ, Heightmap);
return cChunkDef::GetHeight(Heightmap, RelX, RelZ);
diff --git a/source/Generating/DistortedHeightmap.h b/source/Generating/DistortedHeightmap.h index 8c1b136b8..65ec70a6d 100644 --- a/source/Generating/DistortedHeightmap.h +++ b/source/Generating/DistortedHeightmap.h @@ -55,6 +55,9 @@ protected: cBiomeGen & m_BiomeGen;
cHeiGenCache m_HeightGen; // This generator provides us with base heightmap (before distortion)
+ /// Heightmap for the current chunk, before distortion (from m_HeightGen). Used for optimization.
+ cChunkDef::HeightMap m_CurChunkHeights;
+
// Per-biome terrain generator parameters:
struct sGenParam
{
@@ -85,6 +88,7 @@ protected: /// Calculates the X and Z distortion amplitudes based on the neighbors' biomes
void GetDistortAmpsAt(BiomeNeighbors & a_Neighbors, int a_RelX, int a_RelZ, NOISE_DATATYPE & a_DistortAmpX, NOISE_DATATYPE & a_DistortAmpZ);
+
// cTerrainHeightGen overrides:
virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
|