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| author | madmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2012-06-02 15:21:59 +0200 |
|---|---|---|
| committer | madmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2012-06-02 15:21:59 +0200 |
| commit | 5e831256ef838e0238a6fd5eaf3b3e39791c6d77 (patch) | |
| tree | b525331223279e19a4916a4b0295f3fb618e3b2d /source/BioGen.h | |
| parent | Added the Biomal height generator, made it the default height generator. (diff) | |
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Diffstat (limited to 'source/BioGen.h')
| -rw-r--r-- | source/BioGen.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/source/BioGen.h b/source/BioGen.h index e701b6ec9..9a119ef2e 100644 --- a/source/BioGen.h +++ b/source/BioGen.h @@ -39,6 +39,42 @@ protected: +/// A simple cache that stores N most recently generated chunks' biomes; N being settable upon creation
+class cBioGenCache :
+ public cBiomeGen
+{
+public:
+ cBioGenCache(cBiomeGen * a_BioGenToCache, int a_CacheSize); // Takes ownership of a_BioGenToCache
+ ~cBioGenCache();
+
+protected:
+
+ cBiomeGen * m_BioGenToCache;
+
+ struct sCacheData
+ {
+ int m_ChunkX;
+ int m_ChunkZ;
+ cChunkDef::BiomeMap m_BiomeMap;
+ } ;
+
+ // To avoid moving large amounts of data for the MRU behavior, we MRU-ize indices to an array of the actual data
+ int m_CacheSize;
+ int * m_CacheOrder; // MRU-ized order, indices into m_CacheData array
+ sCacheData * m_CacheData; // m_CacheData[m_CacheOrder[0]] is the most recently used
+
+ // Cache statistics
+ int m_NumHits;
+ int m_NumMisses;
+ int m_TotalChain; // Number of cache items walked to get to a hit (only added for hits)
+
+ virtual void GenBiomes(int a_ChunkX, int a_ChunkZ, cChunkDef::BiomeMap & a_BiomeMap) override;
+} ;
+
+
+
+
+
/// Base class for generators that use a list of available biomes. This class takes care of the list.
class cBiomeGenList :
public cBiomeGen
|