// WSSAnvil.h
// Interfaces to the cWSSAnvil class representing the Anvil world storage scheme
#pragma once
#include "../BlockEntities/BlockEntity.h"
#include "WorldStorage.h"
#include "FastNBT.h"
// fwd:
class cItem;
class cItemGrid;
class cMonster;
class cProjectileEntity;
class cHangingEntity;
class cUUID;
enum
{
/** Maximum number of chunks in an MCA file - also the count of the header items */
MCA_MAX_CHUNKS = 32 * 32,
/** The MCA header is 8 KiB */
MCA_HEADER_SIZE = MCA_MAX_CHUNKS * 8,
/** There are 5 bytes of header in front of each chunk */
MCA_CHUNK_HEADER_LENGTH = 5,
} ;
class cWSSAnvil :
public cWSSchema
{
typedef cWSSchema super;
public:
cWSSAnvil(cWorld * a_World, int a_CompressionFactor);
virtual ~cWSSAnvil() override;
protected:
class cMCAFile
{
public:
cMCAFile(cWSSAnvil & a_ParentSchema, const AString & a_FileName, int a_RegionX, int a_RegionZ);
bool GetChunkData (const cChunkCoords & a_Chunk, AString & a_Data);
bool SetChunkData (const cChunkCoords & a_Chunk, const AString & a_Data);
bool EraseChunkData(const cChunkCoords & a_Chunk);
int GetRegionX (void) const {return m_RegionX; }
int GetRegionZ (void) const {return m_RegionZ; }
const AString & GetFileName(void) const {return m_FileName; }
protected:
cWSSAnvil & m_ParentSchema;
int m_RegionX;
int m_RegionZ;
cFile m_File;
AString m_FileName;
// The header, copied from the file so we don't have to seek to it all the time
// First 1024 entries are chunk locations - the 3 + 1 byte sector-offset and sector-count
unsigned m_Header[MCA_MAX_CHUNKS];
// Chunk timestamps, following the chunk headers
unsigned m_TimeStamps[MCA_MAX_CHUNKS];
/** Finds a free location large enough to hold a_Data. Gets a hint of the chunk coords, places the data there if it fits. Returns the sector number. */
unsigned FindFreeLocation(int a_LocalX, int a_LocalZ, const AString & a_Data);
/** Opens a MCA file either for a Read operation (fails if doesn't exist) or for a Write operation (creates new if not found) */
bool OpenFile(bool a_IsForReading);
} ;
typedef std::list<cMCAFile *> cMCAFiles;
cCriticalSection m_CS;
cMCAFiles m_Files; // a MRU cache of MCA files
int m_CompressionFactor;
/** Reports that the specified chunk failed to load and saves the chunk data to an external file. */
void ChunkLoadFailed(int a_ChunkX, int a_ChunkZ, const AString & a_Reason, const AString & a_ChunkDataToSave);
/** Gets chunk data from the correct file; locks file CS as needed */
bool GetChunkData(const cChunkCoords & a_Chunk, AString & a_Data);
/** Sets chunk data into the correct file; locks file CS as needed */
bool SetChunkData(const cChunkCoords & a_Chunk, const AString & a_Data);
/** Loads the chunk from the data (no locking needed) */
bool LoadChunkFromData(const cChunkCoords & a_Chunk, const AString & a_Data);
/** Saves the chunk into datastream (no locking needed) */
bool SaveChunkToData(const cChunkCoords & a_Chunk, AString & a_Data);
/** Loads the chunk from NBT data (no locking needed).
a_RawChunkData is the raw (compressed) chunk data, used for offloading when chunk loading fails. */
bool LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT & a_NBT, const AString & a_RawChunkData);
/** Saves the chunk into NBT data using a_Writer; returns true on success */
bool SaveChunkToNBT(const cChunkCoords & a_Chunk, cFastNBTWriter & a_Writer);
/** Loads the chunk's biome map from vanilla-format; returns a_BiomeMap if biomes present and valid, nullptr otherwise */
cChunkDef::BiomeMap * LoadVanillaBiomeMapFromNBT(cChunkDef::BiomeMap * a_BiomeMap, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads the chunk's biome map from MCS format; returns a_BiomeMap if biomes present and valid, nullptr otherwise */
cChunkDef::BiomeMap * LoadBiomeMapFromNBT(cChunkDef::BiomeMap * a_BiomeMap, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads the chunk's entities from NBT data (a_Tag is the Level\\Entities list tag; may be -1) */
void LoadEntitiesFromNBT(cEntityList & a_Entitites, const cParsedNBT & a_NBT, int a_Tag);
/** Loads the chunk's BlockEntities from NBT data (a_Tag is the Level\\TileEntities list tag; may be -1) */
void LoadBlockEntitiesFromNBT(cBlockEntities & a_BlockEntitites, const cParsedNBT & a_NBT, int a_Tag, BLOCKTYPE * a_BlockTypes, NIBBLETYPE * a_BlockMetas);
/** Loads the data for a block entity from the specified NBT tag.
Returns the loaded block entity, or nullptr upon failure. */
OwnedBlockEntity LoadBlockEntityFromNBT(const cParsedNBT & a_NBT, int a_Tag, Vector3i a_Pos, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
/** Loads a cItem contents from the specified NBT tag; returns true if successful. Doesn't load the Slot tag */
bool LoadItemFromNBT(cItem & a_Item, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads contentents of an Items[] list tag into a cItemGrid
ItemGrid begins at the specified slot offset
Slots outside the ItemGrid range are ignored */
void LoadItemGridFromNBT(cItemGrid & a_ItemGrid, const cParsedNBT & a_NBT, int a_ItemsTagIdx, int s_SlotOffset = 0);
/** Decodes the text contained within a sign.
Older versions used direct string representation, newer versions use JSON-formatted string.
This function extracts the text from either version. */
AString DecodeSignLine(const AString & a_Line);
/** Returns true iff the "id" child tag inside the specified tag equals (case-sensitive) any of the specified expected types.
Logs a warning to the console on mismatch.
The coordinates are used only for the log message. */
bool CheckBlockEntityType(const cParsedNBT & a_NBT, int a_TagIdx, const AStringVector & a_ExpectedTypes, Vector3i a_Pos);
OwnedBlockEntity LoadBeaconFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadBedFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadBrewingstandFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadChestFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadCommandBlockFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadDispenserFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadDropperFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadFlowerPotFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadFurnaceFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadHopperFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadJukeboxFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadMobHeadFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadMobSpawnerFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadNoteBlockFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
OwnedBlockEntity LoadSignFromNBT (const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos);
void LoadEntityFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_EntityTagIdx, const char * a_IDTag, size_t a_IDTagLength);
void LoadBoatFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadEnderCrystalFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadFallingBlockFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadPickupFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadTNTFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadExpOrbFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadHangingFromNBT (cHangingEntity & a_Hanging, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadItemFrameFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadLeashKnotFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadPaintingFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadOldMinecartFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMinecartRFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMinecartCFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMinecartFFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMinecartTFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMinecartHFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadArrowFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSplashPotionFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSnowballFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadEggFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadFireballFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadFireChargeFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadThrownEnderpearlFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadBatFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadBlazeFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadCaveSpiderFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadChickenFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadCowFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadCreeperFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadEnderDragonFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadEndermanFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadGhastFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadGiantFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadGuardianFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadHorseFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadIronGolemFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMagmaCubeFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadMooshroomFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadOcelotFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadPigFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadRabbitFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSheepFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSilverfishFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSkeletonFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSlimeFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSnowGolemFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSpiderFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadSquidFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadVillagerFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadWitchFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadWitherFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadWolfFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadZombieFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
void LoadPigZombieFromNBT (cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads the owner name and UUID from the entity at the specified NBT tag.
Returns a pair of {name, uuid}. If the entity is not owned, name is an empty string and uuid is nil. */
std::pair<AString, cUUID> LoadEntityOwner(const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads entity common data from the NBT compound; returns true if successful */
bool LoadEntityBaseFromNBT(cEntity & a_Entity, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads monster common data from the NBT compound; returns true if successful */
bool LoadMonsterBaseFromNBT(cMonster & a_Monster, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads the position to where is leashed the monster */
void LoadLeashToPosition(cMonster & a_Monster, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads projectile common data from the NBT compound; returns true if successful */
bool LoadProjectileBaseFromNBT(cProjectileEntity & a_Entity, const cParsedNBT & a_NBT, int a_TagIx);
/** Loads an array of doubles of the specified length from the specified NBT list tag a_TagIdx; returns true if successful */
bool LoadDoublesListFromNBT(double * a_Doubles, int a_NumDoubles, const cParsedNBT & a_NBT, int a_TagIdx);
/** Loads an array of floats of the specified length from the specified NBT list tag a_TagIdx; returns true if successful */
bool LoadFloatsListFromNBT(float * a_Floats, int a_NumFloats, const cParsedNBT & a_NBT, int a_TagIdx);
/** Helper function for extracting the X, Y, and Z int subtags of a NBT compound; returns true if successful */
bool GetBlockEntityNBTPos(const cParsedNBT & a_NBT, int a_TagIdx, Vector3i & a_AbsPos);
/** Gets the correct MCA file either from cache or from disk, manages the m_MCAFiles cache; assumes m_CS is locked */
cMCAFile * LoadMCAFile(const cChunkCoords & a_Chunk);
/** Copies a_Length bytes of data from the specified NBT Tag's Child into the a_Destination buffer */
void CopyNBTData(const cParsedNBT & a_NBT, int a_Tag, const AString & a_ChildName, char * a_Destination, size_t a_Length);
// 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 "anvil"; }
} ;
