From f59f5f575921459668a4e955591f28e16b1dea04 Mon Sep 17 00:00:00 2001 From: "madmaxoft@gmail.com" Date: Sun, 23 Sep 2012 20:22:46 +0000 Subject: Source files cleanup: WorldStorage-related files in a separate subfolder git-svn-id: http://mc-server.googlecode.com/svn/trunk@882 0a769ca7-a7f5-676a-18bf-c427514a06d6 --- source/WorldStorage/WSSCompact.h | 144 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 source/WorldStorage/WSSCompact.h (limited to 'source/WorldStorage/WSSCompact.h') diff --git a/source/WorldStorage/WSSCompact.h b/source/WorldStorage/WSSCompact.h new file mode 100644 index 000000000..e6a013eaf --- /dev/null +++ b/source/WorldStorage/WSSCompact.h @@ -0,0 +1,144 @@ + +// WSSCompact.h + +// Interfaces to the cWSSCompact class representing the "Compact" storage schema (PAK-files) + + + + + +#pragma once +#ifndef WSSCOMPACT_H_INCLUDED +#define WSSCOMPACT_H_INCLUDED + +#include "WorldStorage.h" +#include "../Vector3i.h" + + + + + +/// Helper class for serializing a chunk into Json +class cJsonChunkSerializer : + public cChunkDataCollector +{ +public: + + cJsonChunkSerializer(void); + + Json::Value & GetRoot (void) {return m_Root; } + BLOCKTYPE * GetBlockData(void) {return (BLOCKTYPE *)m_BlockData; } + bool HasJsonData (void) const {return m_HasJsonData; } + +protected: + + // NOTE: block data is serialized into inherited cChunkDataCollector's m_BlockData[] array + + // Entities and BlockEntities are serialized to Json + Json::Value m_Root; + bool m_HasJsonData; + + // cChunkDataCollector overrides: + virtual void Entity (cEntity * a_Entity) override; + virtual void BlockEntity (cBlockEntity * a_Entity) override; + virtual bool LightIsValid (bool a_IsLightValid) override; +} ; + + + + + +class cWSSCompact : + public cWSSchema +{ +public: + cWSSCompact(cWorld * a_World) : cWSSchema(a_World) {} + virtual ~cWSSCompact(); + +protected: + + struct sChunkHeader; + typedef std::vector sChunkHeaders; + + /// Implements a cache for a single PAK file; implements lazy-write in order to be able to write multiple chunks fast + class cPAKFile + { + public: + + cPAKFile(const AString & a_FileName, int a_LayerX, int a_LayerZ); + ~cPAKFile(); + + bool GetChunkData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, AString & a_Data); + bool SetChunkData(const cChunkCoords & a_Chunk, int a_UncompressedSize, const AString & a_Data); + bool EraseChunkData(const cChunkCoords & a_Chunk); + + bool SaveChunk(const cChunkCoords & a_Chunk, cWorld * a_World); + + int GetLayerX(void) const {return m_LayerX; } + int GetLayerZ(void) const {return m_LayerZ; } + + static const int PAK_VERSION = 1; +#if AXIS_ORDER == AXIS_ORDER_XZY + static const int CHUNK_VERSION = 3; +#elif AXIS_ORDER == AXIS_ORDER_YZX + static const int CHUNK_VERSION = 2; +#endif + protected: + + AString m_FileName; + int m_LayerX; + int m_LayerZ; + + sChunkHeaders m_ChunkHeaders; + AString m_DataContents; // Data contents of the file, cached + + int m_NumDirty; // Number of chunks that were written into m_DataContents but not into the file + + Vector3i m_ChunkSize; // Is related to m_ChunkVersion + char m_ChunkVersion; + char m_PakVersion; + + bool SaveChunkToData(const cChunkCoords & a_Chunk, cWorld * a_World); // Saves the chunk to m_DataContents, updates headers and m_NumDirty + void SynchronizeFile(void); // Writes m_DataContents along with the headers to file, resets m_NumDirty + + void UpdateChunk1To2(void); // Height from 128 to 256 + void UpdateChunk2To3(void); // Axis order from YZX to XZY + } ; + + typedef std::list cPAKFiles; + + cCriticalSection m_CS; + cPAKFiles m_PAKFiles; // A MRU cache of PAK files + + /// Loads the correct PAK file either from cache or from disk, manages the m_PAKFiles cache + cPAKFile * LoadPAKFile(const cChunkCoords & a_Chunk); + + /// Gets chunk data from the correct file; locks CS as needed + bool GetChunkData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, AString & a_Data); + + /// Sets chunk data to the correct file; locks CS as needed + bool SetChunkData(const cChunkCoords & a_Chunk, int a_UncompressedSize, const AString & a_Data); + + /// Erases chunk data from the correct file; locks CS as needed + bool EraseChunkData(const cChunkCoords & a_Chunk); + + /// Loads the chunk from the data (no locking needed) + bool LoadChunkFromData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, const AString & a_Data, cWorld * a_World); + + void LoadEntitiesFromJson(Json::Value & a_Value, cEntityList & a_Entities, cBlockEntityList & a_BlockEntities, cWorld * a_World); + + // cWSSchema overrides: + virtual bool LoadChunk(const cChunkCoords & a_Chunk) override; + virtual bool SaveChunk(const cChunkCoords & a_Chunk) override; + virtual const AString GetName(void) const override {return "compact"; } +} ; + + + + + +#endif // WSSCOMPACT_H_INCLUDED + + + + -- cgit v1.2.3