148 lines
3.1 KiB
C++
148 lines
3.1 KiB
C++
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// CompoGen.h
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/* Interfaces to the various terrain composition generators:
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- cCompoGenSameBlock
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- cCompoGenDebugBiomes
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- cCompoGenClassic
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- cCompoGenBiomal
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- cCompoGenNether
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- cCompoGenCache
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*/
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#pragma once
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#include "ComposableGenerator.h"
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#include "../Noise/Noise.h"
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class cCompoGenSameBlock :
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public cTerrainCompositionGen
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{
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public:
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cCompoGenSameBlock(void) :
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m_BlockType(E_BLOCK_STONE),
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m_IsBedrocked(true)
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{}
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protected:
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BLOCKTYPE m_BlockType;
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bool m_IsBedrocked;
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// cTerrainCompositionGen overrides:
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virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc, const cChunkDesc::Shape & a_Shape) override;
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virtual void InitializeCompoGen(cIniFile & a_IniFile) override;
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} ;
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class cCompoGenDebugBiomes :
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public cTerrainCompositionGen
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{
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public:
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cCompoGenDebugBiomes(void) {}
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protected:
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// cTerrainCompositionGen overrides:
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virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc, const cChunkDesc::Shape & a_Shape) override;
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} ;
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class cCompoGenClassic :
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public cTerrainCompositionGen
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{
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public:
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cCompoGenClassic(void);
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protected:
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int m_SeaLevel;
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int m_BeachHeight;
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int m_BeachDepth;
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BLOCKTYPE m_BlockTop;
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BLOCKTYPE m_BlockMiddle;
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BLOCKTYPE m_BlockBottom;
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BLOCKTYPE m_BlockBeach;
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BLOCKTYPE m_BlockBeachBottom;
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BLOCKTYPE m_BlockSea;
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// cTerrainCompositionGen overrides:
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virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc, const cChunkDesc::Shape & a_Shape) override;
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virtual void InitializeCompoGen(cIniFile & a_IniFile) override;
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} ;
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class cCompoGenNether :
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public cTerrainCompositionGen
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{
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public:
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cCompoGenNether(int a_Seed);
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protected:
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cNoise m_Noise1;
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cNoise m_Noise2;
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double m_MaxThreshold;
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// cTerrainCompositionGen overrides:
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virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc, const cChunkDesc::Shape & a_Shape) override;
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virtual void InitializeCompoGen(cIniFile & a_IniFile) override;
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} ;
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/** Caches most-recently-used chunk composition of another composition generator. Caches only the types and metas */
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class cCompoGenCache :
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public cTerrainCompositionGen
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{
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public:
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cCompoGenCache(std::unique_ptr<cTerrainCompositionGen> a_Underlying, int a_CacheSize);
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virtual ~cCompoGenCache() override;
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// cTerrainCompositionGen override:
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virtual void ComposeTerrain(cChunkDesc & a_ChunkDesc, const cChunkDesc::Shape & a_Shape) override;
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virtual void InitializeCompoGen(cIniFile & a_IniFile) override;
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protected:
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std::unique_ptr<cTerrainCompositionGen> m_Underlying;
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struct sCacheData
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{
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int m_ChunkX;
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int m_ChunkZ;
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cChunkDef::BlockTypes m_BlockTypes;
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cChunkDesc::BlockNibbleBytes m_BlockMetas; // The metas are uncompressed, 1 meta per byte
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cChunkDef::HeightMap m_HeightMap;
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} ;
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// To avoid moving large amounts of data for the MRU behavior, we MRU-ize indices to an array of the actual data
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int m_CacheSize;
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int * m_CacheOrder; // MRU-ized order, indices into m_CacheData array
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sCacheData * m_CacheData; // m_CacheData[m_CacheOrder[0]] is the most recently used
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// Cache statistics
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int m_NumHits;
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int m_NumMisses;
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int m_TotalChain; // Number of cache items walked to get to a hit (only added for hits)
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} ;
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