diff options
Diffstat (limited to 'src/ChunkData.h')
| -rw-r--r-- | src/ChunkData.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/ChunkData.h b/src/ChunkData.h new file mode 100644 index 000000000..fe8b068a2 --- /dev/null +++ b/src/ChunkData.h @@ -0,0 +1,133 @@ + +// ChunkData.h + +// Declares the cChunkData class that represents the block's type, meta, blocklight and skylight storage for a chunk + + + + + +#pragma once + + +#include <cstring> + + +#include "ChunkDef.h" + +#include "AllocationPool.h" + + + +#if __cplusplus < 201103L +// auto_ptr style interface for memory management +#else +// unique_ptr style interface for memory management +#endif + +class cChunkData +{ +private: + + static const size_t SectionHeight = 16; + static const size_t NumSections = (cChunkDef::Height / SectionHeight); + static const size_t SectionBlockCount = SectionHeight * cChunkDef::Width * cChunkDef::Width; + +public: + + struct sChunkSection; + + cChunkData(cAllocationPool<cChunkData::sChunkSection> & a_Pool); + ~cChunkData(); + + #if __cplusplus < 201103L + // auto_ptr style interface for memory management + cChunkData(const cChunkData & a_Other); + cChunkData & operator =(const cChunkData & a_Other); + #else + // unique_ptr style interface for memory management + cChunkData(cChunkData && a_Other); + cChunkData & operator =(cChunkData && a_ther); + #endif + + BLOCKTYPE GetBlock(int a_X, int a_Y, int a_Z) const; + void SetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_Block); + + NIBBLETYPE GetMeta(int a_RelX, int a_RelY, int a_RelZ) const; + bool SetMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Nibble); + + NIBBLETYPE GetBlockLight(int a_RelX, int a_RelY, int a_RelZ) const; + + NIBBLETYPE GetSkyLight(int a_RelX, int a_RelY, int a_RelZ) const; + + /** Creates a (deep) copy of self. */ + cChunkData Copy(void) const; + + /** Copies the blocktype data into the specified flat array. + Optionally, only a part of the data is copied, as specified by the a_Idx and a_Length parameters. */ + void CopyBlockTypes(BLOCKTYPE * a_Dest, size_t a_Idx = 0, size_t a_Length = cChunkDef::NumBlocks) const; + + /** Copies the metadata into the specified flat array. */ + void CopyMetas(NIBBLETYPE * a_Dest) const; + + /** Copies the block light data into the specified flat array. */ + void CopyBlockLight(NIBBLETYPE * a_Dest) const; + + /** Copies the skylight data into the specified flat array. */ + void CopySkyLight (NIBBLETYPE * a_Dest) const; + + /** Copies the blocktype data from the specified flat array into the internal representation. + Allocates sections that are needed for the operation. + Requires that a_Src is a valid pointer. */ + void SetBlockTypes(const BLOCKTYPE * a_Src); + + /** Copies the metadata from the specified flat array into the internal representation. + Allocates sectios that are needed for the operation. + Requires that a_Src is a valid pointer. */ + void SetMetas(const NIBBLETYPE * a_Src); + + /** Copies the blocklight data from the specified flat array into the internal representation. + Allocates sectios that are needed for the operation. + Allows a_Src to be NULL, in which case it doesn't do anything. */ + void SetBlockLight(const NIBBLETYPE * a_Src); + + /** Copies the skylight data from the specified flat array into the internal representation. + Allocates sectios that are needed for the operation. + Allows a_Src to be NULL, in which case it doesn't do anything. */ + void SetSkyLight(const NIBBLETYPE * a_Src); + + struct sChunkSection + { + BLOCKTYPE m_BlockTypes [SectionHeight * 16 * 16] ; + NIBBLETYPE m_BlockMetas [SectionHeight * 16 * 16 / 2]; + NIBBLETYPE m_BlockLight [SectionHeight * 16 * 16 / 2]; + NIBBLETYPE m_BlockSkyLight[SectionHeight * 16 * 16 / 2]; + }; + +private: + #if __cplusplus < 201103L + // auto_ptr style interface for memory management + mutable bool m_IsOwner; + #endif + + sChunkSection * m_Sections[NumSections]; + + cAllocationPool<cChunkData::sChunkSection> & m_Pool; + + /** Allocates a new section. Entry-point to custom allocators. */ + sChunkSection * Allocate(void); + + /** Frees the specified section, previously allocated using Allocate(). + Note that a_Section may be NULL. */ + void Free(sChunkSection * a_Section); + + /** Sets the data in the specified section to their default values. */ + void ZeroSection(sChunkSection * a_Section) const; + +}; + + + + + + |