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Diffstat (limited to '')
| -rw-r--r-- | src/Generating/HeiGen.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/Generating/HeiGen.h b/src/Generating/HeiGen.h index d91ace3bd..fe0a023e4 100644 --- a/src/Generating/HeiGen.h +++ b/src/Generating/HeiGen.h @@ -63,6 +63,38 @@ protected: +/** Caches heightmaps in multiple underlying caches to improve the distribution and lower the chain length. */ +class cHeiGenMultiCache: + public cTerrainHeightGen +{ +public: + cHeiGenMultiCache(cTerrainHeightGenPtr a_HeightGenToCache, size_t a_SubCacheSize, size_t a_NumSubCaches); + + // cTerrainHeightGen overrides: + virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override; + + /** Retrieves height at the specified point in the cache, returns true if found, false if not found */ + bool GetHeightAt(int a_ChunkX, int a_ChunkZ, int a_RelX, int a_RelZ, HEIGHTTYPE & a_Height); + +protected: + typedef SharedPtr<cHeiGenCache> cHeiGenCachePtr; + typedef std::vector<cHeiGenCachePtr> cHeiGenCachePtrs; + + + /** The coefficient used to turn Z coords into index (x + Coeff * z). */ + static const size_t m_CoeffZ = 5; + + /** Number of sub-caches, pulled out of m_SubCaches.size() for performance reasons. */ + size_t m_NumSubCaches; + + /** The individual sub-caches. */ + cHeiGenCachePtrs m_SubCaches; +}; + + + + + class cHeiGenFlat : public cTerrainHeightGen { |