diff options
Diffstat (limited to 'source/HeiGen.h')
-rw-r--r-- | source/HeiGen.h | 274 |
1 files changed, 137 insertions, 137 deletions
diff --git a/source/HeiGen.h b/source/HeiGen.h index d3074487f..e5b20c334 100644 --- a/source/HeiGen.h +++ b/source/HeiGen.h @@ -1,137 +1,137 @@ -
-// HeiGen.h
-
-/*
-Interfaces to the various height generators:
- - cHeiGenFlat
- - cHeiGenClassic
- - cHeiGenBiomal
-*/
-
-
-
-
-
-#pragma once
-
-#include "cChunkGenerator.h"
-#include "cNoise.h"
-
-
-
-
-
-class cHeiGenFlat :
- public cTerrainHeightGen
-{
-public:
- cHeiGenFlat(int a_Height) : m_Height(a_Height) {}
-
-protected:
-
- int m_Height;
-
- // cTerrainHeightGen override:
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-} ;
-
-
-
-
-
-/// A simple cache that stores N most recently generated chunks' heightmaps; N being settable upon creation
-class cHeiGenCache :
- public cTerrainHeightGen
-{
-public:
- cHeiGenCache(cTerrainHeightGen * a_HeiGenToCache, int a_CacheSize); // Takes ownership of a_HeiGenToCache
- ~cHeiGenCache();
-
-protected:
-
- cTerrainHeightGen * m_HeiGenToCache;
-
- struct sCacheData
- {
- int m_ChunkX;
- int m_ChunkZ;
- cChunkDef::HeightMap m_HeightMap;
- } ;
-
- // 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 GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-} ;
-
-
-
-
-
-class cHeiGenClassic :
- public cTerrainHeightGen
-{
-public:
- cHeiGenClassic(int a_Seed, float a_HeightFreq1, float a_HeightAmp1, float a_HeightFreq2, float a_HeightAmp2, float a_HeightFreq3, float a_HeightAmp3);
-
-protected:
-
- int m_Seed;
- cNoise m_Noise;
- float m_HeightFreq1, m_HeightAmp1;
- float m_HeightFreq2, m_HeightAmp2;
- float m_HeightFreq3, m_HeightAmp3;
-
- float GetNoise(float x, float y);
-
- // cTerrainHeightGen override:
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-} ;
-
-
-
-
-
-class cHeiGenBiomal :
- public cTerrainHeightGen
-{
-public:
- cHeiGenBiomal(int a_Seed, cBiomeGen & a_BiomeGen) :
- m_Noise(a_Seed),
- m_BiomeGen(a_BiomeGen)
- {
- }
-
-protected:
-
- typedef cChunkDef::BiomeMap BiomeNeighbors[3][3];
-
- cNoise m_Noise;
- cBiomeGen & m_BiomeGen;
-
- // Per-biome terrain generator parameters:
- struct sGenParam
- {
- float m_HeightFreq1, m_HeightAmp1;
- float m_HeightFreq2, m_HeightAmp2;
- float m_HeightFreq3, m_HeightAmp3;
- float m_BaseHeight;
- } ;
- static const sGenParam m_GenParam[biNumBiomes];
-
- // cTerrainHeightGen override:
- virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override;
-
- HEIGHTTYPE GetHeightAt(int a_RelX, int a_RelZ, int a_ChunkX, int a_ChunkZ, const BiomeNeighbors & a_BiomeNeighbors);
-} ;
-
-
-
-
+ +// HeiGen.h + +/* +Interfaces to the various height generators: + - cHeiGenFlat + - cHeiGenClassic + - cHeiGenBiomal +*/ + + + + + +#pragma once + +#include "cChunkGenerator.h" +#include "cNoise.h" + + + + + +class cHeiGenFlat : + public cTerrainHeightGen +{ +public: + cHeiGenFlat(int a_Height) : m_Height(a_Height) {} + +protected: + + int m_Height; + + // cTerrainHeightGen override: + virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override; +} ; + + + + + +/// A simple cache that stores N most recently generated chunks' heightmaps; N being settable upon creation +class cHeiGenCache : + public cTerrainHeightGen +{ +public: + cHeiGenCache(cTerrainHeightGen * a_HeiGenToCache, int a_CacheSize); // Takes ownership of a_HeiGenToCache + ~cHeiGenCache(); + +protected: + + cTerrainHeightGen * m_HeiGenToCache; + + struct sCacheData + { + int m_ChunkX; + int m_ChunkZ; + cChunkDef::HeightMap m_HeightMap; + } ; + + // 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 GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override; +} ; + + + + + +class cHeiGenClassic : + public cTerrainHeightGen +{ +public: + cHeiGenClassic(int a_Seed, float a_HeightFreq1, float a_HeightAmp1, float a_HeightFreq2, float a_HeightAmp2, float a_HeightFreq3, float a_HeightAmp3); + +protected: + + int m_Seed; + cNoise m_Noise; + float m_HeightFreq1, m_HeightAmp1; + float m_HeightFreq2, m_HeightAmp2; + float m_HeightFreq3, m_HeightAmp3; + + float GetNoise(float x, float y); + + // cTerrainHeightGen override: + virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override; +} ; + + + + + +class cHeiGenBiomal : + public cTerrainHeightGen +{ +public: + cHeiGenBiomal(int a_Seed, cBiomeGen & a_BiomeGen) : + m_Noise(a_Seed), + m_BiomeGen(a_BiomeGen) + { + } + +protected: + + typedef cChunkDef::BiomeMap BiomeNeighbors[3][3]; + + cNoise m_Noise; + cBiomeGen & m_BiomeGen; + + // Per-biome terrain generator parameters: + struct sGenParam + { + float m_HeightFreq1, m_HeightAmp1; + float m_HeightFreq2, m_HeightAmp2; + float m_HeightFreq3, m_HeightAmp3; + float m_BaseHeight; + } ; + static const sGenParam m_GenParam[biNumBiomes]; + + // cTerrainHeightGen override: + virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override; + + HEIGHTTYPE GetHeightAt(int a_RelX, int a_RelZ, int a_ChunkX, int a_ChunkZ, const BiomeNeighbors & a_BiomeNeighbors); +} ; + + + + |