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Diffstat (limited to 'src/ChunkDataCallback.h')
-rw-r--r-- | src/ChunkDataCallback.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/ChunkDataCallback.h b/src/ChunkDataCallback.h new file mode 100644 index 000000000..0c8b1098f --- /dev/null +++ b/src/ChunkDataCallback.h @@ -0,0 +1,127 @@ + +// ChunkDataCallback.h + +// Declares the cChunkDataCallback interface and several trivial descendants, for reading chunk data + + + + + +#pragma once + +#include "ChunkData.h" + + + + + +/** Interface class used for getting data out of a chunk using the GetAllData() function. +Implementation must use the pointers immediately and NOT store any of them for later use +The virtual methods are called in the same order as they're declared here. +*/ +class cChunkDataCallback abstract +{ +public: + + virtual ~cChunkDataCallback() {} + + /** Called before any other callbacks to inform of the current coords + (only in processes where multiple chunks can be processed, such as cWorld::ForEachChunkInRect()). + If false is returned, the chunk is skipped. + */ + virtual bool Coords(int a_ChunkX, int a_ChunkZ) { UNUSED(a_ChunkX); UNUSED(a_ChunkZ); return true; }; + + /// Called once to provide heightmap data + virtual void HeightMap(const cChunkDef::HeightMap * a_HeightMap) {UNUSED(a_HeightMap); }; + + /// Called once to provide biome data + virtual void BiomeData(const cChunkDef::BiomeMap * a_BiomeMap) {UNUSED(a_BiomeMap); }; + + /// Called once to let know if the chunk lighting is valid. Return value is ignored + virtual void LightIsValid(bool a_IsLightValid) {UNUSED(a_IsLightValid); }; + + /// Called once to export block info + virtual void ChunkData(const cChunkData & a_Buffer) {UNUSED(a_Buffer); }; + + /// Called for each entity in the chunk + virtual void Entity(cEntity * a_Entity) {UNUSED(a_Entity); }; + + /// Called for each blockentity in the chunk + virtual void BlockEntity(cBlockEntity * a_Entity) {UNUSED(a_Entity); }; +} ; + + + + + +/** A simple implementation of the cChunkDataCallback interface that collects all block data into a buffer +*/ +class cChunkDataCollector : + public cChunkDataCallback +{ +public: + + cChunkData m_BlockData; + +protected: + + virtual void ChunkData(const cChunkData & a_BlockData) override + { + m_BlockData = a_BlockData.Copy(); + } +}; + + + + + +/** A simple implementation of the cChunkDataCallback interface that collects all block data into a single buffer +*/ +class cChunkDataArrayCollector : + public cChunkDataCallback +{ +public: + + // Must be unsigned char instead of BLOCKTYPE or NIBBLETYPE, because it houses both. + unsigned char m_BlockData[cChunkDef::BlockDataSize]; + +protected: + + virtual void ChunkData(const cChunkData & a_ChunkBuffer) override + { + a_ChunkBuffer.CopyBlockTypes(m_BlockData); + a_ChunkBuffer.CopyMetas(m_BlockData + cChunkDef::NumBlocks); + a_ChunkBuffer.CopyBlockLight(m_BlockData + 3 * cChunkDef::NumBlocks / 2); + a_ChunkBuffer.CopySkyLight(m_BlockData + 2 * cChunkDef::NumBlocks); + } +}; + + + + + +/** A simple implementation of the cChunkDataCallback interface that collects all block data into separate buffers */ +class cChunkDataSeparateCollector : + public cChunkDataCallback +{ +public: + + cChunkDef::BlockTypes m_BlockTypes; + cChunkDef::BlockNibbles m_BlockMetas; + cChunkDef::BlockNibbles m_BlockLight; + cChunkDef::BlockNibbles m_BlockSkyLight; + +protected: + + virtual void ChunkData(const cChunkData & a_ChunkBuffer) override + { + a_ChunkBuffer.CopyBlockTypes(m_BlockTypes); + a_ChunkBuffer.CopyMetas(m_BlockMetas); + a_ChunkBuffer.CopyBlockLight(m_BlockLight); + a_ChunkBuffer.CopySkyLight(m_BlockSkyLight); + } +} ; + + + + |