diff --git a/src/Generating/BioGen.cpp b/src/Generating/BioGen.cpp index 8fad9f5c9..175e4ef33 100644 --- a/src/Generating/BioGen.cpp +++ b/src/Generating/BioGen.cpp @@ -151,7 +151,7 @@ void cBioGenCache::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a LOGD("BioGenCache: %d hits, %d misses, saved %.2f %%", m_NumHits, m_NumMisses, 100.0 * m_NumHits / (m_NumHits + m_NumMisses)); LOGD("BioGenCache: Avg cache chain length: %.2f", (float)m_TotalChain / m_NumHits); } - + for (int i = 0; i < m_CacheSize; i++) { if ( @@ -208,6 +208,59 @@ void cBioGenCache::InitializeBiomeGen(cIniFile & a_IniFile) +//////////////////////////////////////////////////////////////////////////////// +// cBioGenMulticache: + +cBioGenMulticache::cBioGenMulticache(cBiomeGen * a_BioGenToCache, size_t a_CacheSize, size_t a_CachesLength) : + m_CachesLength(a_CachesLength) +{ + m_Caches.reserve(a_CachesLength); + for (size_t i = 0; i < a_CachesLength; i++) + { + m_Caches.push_back(new cBioGenCache(a_BioGenToCache, a_CacheSize)); + } +} + + + + + +cBioGenMulticache::~cBioGenMulticache() +{ + for (std::vector::iterator it = m_Caches.begin(); it != m_Caches.end(); it++) + { + delete *it; + } +} + + + + + +void cBioGenMulticache::GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) +{ + const size_t coefficient = 3; + const size_t cacheIdx = ((size_t)a_ChunkX + coefficient * (size_t)a_ChunkZ) % m_CachesLength; + + m_Caches[cacheIdx]->GenBiomes(a_ChunkX, a_ChunkZ, a_BiomeMap); +} + + + + + +void cBioGenMulticache::InitializeBiomeGen(cIniFile & a_IniFile) +{ + for (std::vector::iterator it = m_Caches.begin(); it != m_Caches.end(); it++) + { + cBiomeGen * tmp = *it; + tmp->InitializeBiomeGen(a_IniFile); + } +} + + + + //////////////////////////////////////////////////////////////////////////////// // cBiomeGenList: diff --git a/src/Generating/BioGen.h b/src/Generating/BioGen.h index 227ec97d7..a4cf95a72 100644 --- a/src/Generating/BioGen.h +++ b/src/Generating/BioGen.h @@ -80,6 +80,32 @@ protected: +class cBioGenMulticache : + public cBiomeGen +{ + + typedef cBiomeGen super; + +public: + /* + a_CacheSize defines the size of each singular cache + a_CachesLength defines how many caches are used for the multicache + */ + cBioGenMulticache(cBiomeGen * a_BioGenToCache, size_t a_CacheSize, size_t a_CachesLength); // Doesn't take ownership of a_BioGenToCache + ~cBioGenMulticache(); + +protected: + size_t m_CachesLength; + std::vector m_Caches; + + virtual void GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override; + virtual void InitializeBiomeGen(cIniFile & a_IniFile) override; +}; + + + + + /// Base class for generators that use a list of available biomes. This class takes care of the list. class cBiomeGenList : public cBiomeGen diff --git a/src/Generating/ComposableGenerator.cpp b/src/Generating/ComposableGenerator.cpp index 6f4007d24..d70438bf3 100644 --- a/src/Generating/ComposableGenerator.cpp +++ b/src/Generating/ComposableGenerator.cpp @@ -230,6 +230,8 @@ void cComposableGenerator::InitBiomeGen(cIniFile & a_IniFile) // Add a cache, if requested: int CacheSize = a_IniFile.GetValueSetI("Generator", "BiomeGenCacheSize", CacheOffByDefault ? 0 : 64); + int MultiCacheLength = a_IniFile.GetValueSetI("Generator", "BiomeGenMultiCacheLength", 4); + if (CacheSize > 0) { if (CacheSize < 4) @@ -241,7 +243,16 @@ void cComposableGenerator::InitBiomeGen(cIniFile & a_IniFile) } LOGD("Using a cache for biomegen of size %d.", CacheSize); m_UnderlyingBiomeGen = m_BiomeGen; - m_BiomeGen = new cBioGenCache(m_UnderlyingBiomeGen, CacheSize); + if (MultiCacheLength > 0) + { + LOGD("Enabling multicache for biomegen of length %d.", MultiCacheLength); + m_BiomeGen = new cBioGenMulticache(m_UnderlyingBiomeGen, CacheSize, MultiCacheLength); + } + else + { + m_BiomeGen = new cBioGenCache(m_UnderlyingBiomeGen, CacheSize); + } + } }