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Diffstat (limited to 'source/WorldStorage/WSSAnvil.cpp')
| -rw-r--r-- | source/WorldStorage/WSSAnvil.cpp | 1555 |
1 files changed, 0 insertions, 1555 deletions
diff --git a/source/WorldStorage/WSSAnvil.cpp b/source/WorldStorage/WSSAnvil.cpp deleted file mode 100644 index b2e104a78..000000000 --- a/source/WorldStorage/WSSAnvil.cpp +++ /dev/null @@ -1,1555 +0,0 @@ - -// WSSAnvil.cpp - -// Implements the cWSSAnvil class representing the Anvil world storage scheme - -#include "Globals.h" -#include "WSSAnvil.h" -#include "NBTChunkSerializer.h" -#include "../World.h" -#include "zlib.h" -#include "../BlockID.h" -#include "../BlockEntities/ChestEntity.h" -#include "../BlockEntities/DispenserEntity.h" -#include "../BlockEntities/DropperEntity.h" -#include "../BlockEntities/FurnaceEntity.h" -#include "../BlockEntities/HopperEntity.h" -#include "../BlockEntities/JukeboxEntity.h" -#include "../BlockEntities/NoteEntity.h" -#include "../BlockEntities/SignEntity.h" -#include "../Item.h" -#include "../ItemGrid.h" -#include "../StringCompression.h" -#include "FastNBT.h" -#include "../Mobs/Monster.h" -#include "../Entities/Boat.h" -#include "../Entities/FallingBlock.h" -#include "../Entities/Minecart.h" -#include "../Entities/Pickup.h" -#include "../Entities/ProjectileEntity.h" - - - - - -/** If defined, the BlockSkyLight values will be copied over to BlockLight upon chunk saving, -thus making skylight visible in Minutor's Lighting mode -*/ -// #define DEBUG_SKYLIGHT - -/** Maximum number of MCA files that are cached in memory. -Since only the header is actually in the memory, this number can be high, but still, each file means an OS FS handle. -*/ -#define MAX_MCA_FILES 32 - -/// The maximum size of an inflated chunk; raw chunk data is 192 KiB, allow 64 KiB more of entities -#define CHUNK_INFLATE_MAX 256 KiB - - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// cWSSAnvil: - -cWSSAnvil::cWSSAnvil(cWorld * a_World) : - super(a_World) -{ - // Create a level.dat file for mapping tools, if it doesn't already exist: - AString fnam; - Printf(fnam, "%s/level.dat", a_World->GetName().c_str()); - if (!cFile::Exists(fnam)) - { - cFastNBTWriter Writer; - Writer.BeginCompound(""); - Writer.AddInt("SpawnX", (int)(a_World->GetSpawnX())); - Writer.AddInt("SpawnY", (int)(a_World->GetSpawnY())); - Writer.AddInt("SpawnZ", (int)(a_World->GetSpawnZ())); - Writer.EndCompound(); - Writer.Finish(); - - #ifdef _DEBUG - cParsedNBT TestParse(Writer.GetResult().data(), Writer.GetResult().size()); - ASSERT(TestParse.IsValid()); - #endif // _DEBUG - - gzFile gz = gzopen((FILE_IO_PREFIX + fnam).c_str(), "wb"); - if (gz != NULL) - { - gzwrite(gz, Writer.GetResult().data(), Writer.GetResult().size()); - } - gzclose(gz); - } -} - - - - - -cWSSAnvil::~cWSSAnvil() -{ - cCSLock Lock(m_CS); - for (cMCAFiles::iterator itr = m_Files.begin(); itr != m_Files.end(); ++itr) - { - delete *itr; - } // for itr - m_Files[] -} - - - - - -bool cWSSAnvil::LoadChunk(const cChunkCoords & a_Chunk) -{ - AString ChunkData; - if (!GetChunkData(a_Chunk, ChunkData)) - { - // The reason for failure is already printed in GetChunkData() - return false; - } - - return LoadChunkFromData(a_Chunk, ChunkData); -} - - - - - -bool cWSSAnvil::SaveChunk(const cChunkCoords & a_Chunk) -{ - AString ChunkData; - if (!SaveChunkToData(a_Chunk, ChunkData)) - { - LOGWARNING("Cannot serialize chunk [%d, %d] into data", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); - return false; - } - if (!SetChunkData(a_Chunk, ChunkData)) - { - LOGWARNING("Cannot store chunk [%d, %d] data", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); - return false; - } - - // Everything successful - return true; -} - - - - - -bool cWSSAnvil::GetChunkData(const cChunkCoords & a_Chunk, AString & a_Data) -{ - cCSLock Lock(m_CS); - cMCAFile * File = LoadMCAFile(a_Chunk); - if (File == NULL) - { - return false; - } - return File->GetChunkData(a_Chunk, a_Data); -} - - - - - -bool cWSSAnvil::SetChunkData(const cChunkCoords & a_Chunk, const AString & a_Data) -{ - cCSLock Lock(m_CS); - cMCAFile * File = LoadMCAFile(a_Chunk); - if (File == NULL) - { - return false; - } - return File->SetChunkData(a_Chunk, a_Data); -} - - - - - -cWSSAnvil::cMCAFile * cWSSAnvil::LoadMCAFile(const cChunkCoords & a_Chunk) -{ - // ASSUME m_CS is locked - ASSERT(m_CS.IsLocked()); - - const int RegionX = FAST_FLOOR_DIV(a_Chunk.m_ChunkX, 32); - const int RegionZ = FAST_FLOOR_DIV(a_Chunk.m_ChunkZ, 32); - ASSERT(a_Chunk.m_ChunkX - RegionX * 32 >= 0); - ASSERT(a_Chunk.m_ChunkZ - RegionZ * 32 >= 0); - ASSERT(a_Chunk.m_ChunkX - RegionX * 32 < 32); - ASSERT(a_Chunk.m_ChunkZ - RegionZ * 32 < 32); - - // Is it already cached? - for (cMCAFiles::iterator itr = m_Files.begin(); itr != m_Files.end(); ++itr) - { - if (((*itr) != NULL) && ((*itr)->GetRegionX() == RegionX) && ((*itr)->GetRegionZ() == RegionZ)) - { - // Move the file to front and return it: - cMCAFile * f = *itr; - if (itr != m_Files.begin()) - { - m_Files.erase(itr); - m_Files.push_front(f); - } - return f; - } - } - - // Load it anew: - AString FileName; - Printf(FileName, "%s/region", m_World->GetName().c_str()); - cFile::CreateFolder(FILE_IO_PREFIX + FileName); - AppendPrintf(FileName, "/r.%d.%d.mca", RegionX, RegionZ); - cMCAFile * f = new cMCAFile(FileName, RegionX, RegionZ); - if (f == NULL) - { - return NULL; - } - m_Files.push_front(f); - - // If there are too many MCA files cached, delete the last one used: - if (m_Files.size() > MAX_MCA_FILES) - { - delete m_Files.back(); - m_Files.pop_back(); - } - return f; -} - - - - - -bool cWSSAnvil::LoadChunkFromData(const cChunkCoords & a_Chunk, const AString & a_Data) -{ - // Decompress the data: - char Uncompressed[CHUNK_INFLATE_MAX]; - z_stream strm; - strm.zalloc = (alloc_func)NULL; - strm.zfree = (free_func)NULL; - strm.opaque = NULL; - inflateInit(&strm); - strm.next_out = (Bytef *)Uncompressed; - strm.avail_out = sizeof(Uncompressed); - strm.next_in = (Bytef *)a_Data.data(); - strm.avail_in = a_Data.size(); - int res = inflate(&strm, Z_FINISH); - inflateEnd(&strm); - if (res != Z_STREAM_END) - { - return false; - } - - // Parse the NBT data: - cParsedNBT NBT(Uncompressed, strm.total_out); - if (!NBT.IsValid()) - { - // NBT Parsing failed - return false; - } - - // Load the data from NBT: - return LoadChunkFromNBT(a_Chunk, NBT); -} - - - - - -bool cWSSAnvil::SaveChunkToData(const cChunkCoords & a_Chunk, AString & a_Data) -{ - cFastNBTWriter Writer; - if (!SaveChunkToNBT(a_Chunk, Writer)) - { - LOGWARNING("Cannot save chunk [%d, %d] to NBT", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); - return false; - } - Writer.Finish(); - - CompressString(Writer.GetResult().data(), Writer.GetResult().size(), a_Data); - return true; -} - - - - - -bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT & a_NBT) -{ - // The data arrays, in MCA-native y/z/x ordering (will be reordered for the final chunk data) - cChunkDef::BlockTypes BlockTypes; - cChunkDef::BlockNibbles MetaData; - cChunkDef::BlockNibbles BlockLight; - cChunkDef::BlockNibbles SkyLight; - - memset(BlockTypes, E_BLOCK_AIR, sizeof(BlockTypes)); - memset(MetaData, 0, sizeof(MetaData)); - memset(SkyLight, 0xff, sizeof(SkyLight)); // By default, data not present in the NBT means air, which means full skylight - memset(BlockLight, 0x00, sizeof(BlockLight)); - - // Load the blockdata, blocklight and skylight: - int Level = a_NBT.FindChildByName(0, "Level"); - if (Level < 0) - { - return false; - } - int Sections = a_NBT.FindChildByName(Level, "Sections"); - if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List) || (a_NBT.GetChildrenType(Sections) != TAG_Compound)) - { - return false; - } - for (int Child = a_NBT.GetFirstChild(Sections); Child >= 0; Child = a_NBT.GetNextSibling(Child)) - { - int y = 0; - int SectionY = a_NBT.FindChildByName(Child, "Y"); - if ((SectionY < 0) || (a_NBT.GetType(SectionY) != TAG_Byte)) - { - continue; - } - y = a_NBT.GetByte(SectionY); - if ((y < 0) || (y > 15)) - { - continue; - } - CopyNBTData(a_NBT, Child, "Blocks", (char *)&(BlockTypes[y * 4096]), 4096); - CopyNBTData(a_NBT, Child, "Data", (char *)&(MetaData[y * 2048]), 2048); - CopyNBTData(a_NBT, Child, "SkyLight", (char *)&(SkyLight[y * 2048]), 2048); - CopyNBTData(a_NBT, Child, "BlockLight", (char *)&(BlockLight[y * 2048]), 2048); - } // for itr - LevelSections[] - - // Load the biomes from NBT, if present and valid. First try MCS-style, then Vanilla-style: - cChunkDef::BiomeMap BiomeMap; - cChunkDef::BiomeMap * Biomes = LoadBiomeMapFromNBT(&BiomeMap, a_NBT, a_NBT.FindChildByName(Level, "MCSBiomes")); - if (Biomes == NULL) - { - // MCS-style biomes not available, load vanilla-style: - Biomes = LoadVanillaBiomeMapFromNBT(&BiomeMap, a_NBT, a_NBT.FindChildByName(Level, "Biomes")); - } - - // Load the entities from NBT: - cEntityList Entities; - cBlockEntityList BlockEntities; - LoadEntitiesFromNBT (Entities, a_NBT, a_NBT.FindChildByName(Level, "Entities")); - LoadBlockEntitiesFromNBT(BlockEntities, a_NBT, a_NBT.FindChildByName(Level, "TileEntities"), BlockTypes, MetaData); - - bool IsLightValid = (a_NBT.FindChildByName(Level, "MCSIsLightValid") > 0); - - /* - // Uncomment this block for really cool stuff :) - // DEBUG magic: Invert the underground, so that we can see the MC generator in action :) - bool ShouldInvert[cChunkDef::Width * cChunkDef::Width]; - memset(ShouldInvert, 0, sizeof(ShouldInvert)); - for (int y = cChunkDef::Height - 1; y >= 0; y--) - { - for (int x = 0; x < cChunkDef::Width; x++) for (int z = 0; z < cChunkDef::Width; z++) - { - int Index = cChunkDef::MakeIndexNoCheck(x, y, z); - if (ShouldInvert[x + cChunkDef::Width * z]) - { - BlockTypes[Index] = (BlockTypes[Index] == E_BLOCK_AIR) ? E_BLOCK_STONE : E_BLOCK_AIR; - } - else - { - switch (BlockTypes[Index]) - { - case E_BLOCK_AIR: - case E_BLOCK_LEAVES: - { - // nothing needed - break; - } - default: - { - ShouldInvert[x + cChunkDef::Width * z] = true; - } - } - BlockTypes[Index] = E_BLOCK_AIR; - } - } - } // for y - //*/ - - m_World->SetChunkData( - a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, - BlockTypes, MetaData, - IsLightValid ? BlockLight : NULL, - IsLightValid ? SkyLight : NULL, - NULL, Biomes, - Entities, BlockEntities, - false - ); - return true; -} - - - - -void cWSSAnvil::CopyNBTData(const cParsedNBT & a_NBT, int a_Tag, const AString & a_ChildName, char * a_Destination, int a_Length) -{ - int Child = a_NBT.FindChildByName(a_Tag, a_ChildName); - if ((Child >= 0) && (a_NBT.GetType(Child) == TAG_ByteArray) && (a_NBT.GetDataLength(Child) == a_Length)) - { - memcpy(a_Destination, a_NBT.GetData(Child), a_Length); - } -} - - - - - -bool cWSSAnvil::SaveChunkToNBT(const cChunkCoords & a_Chunk, cFastNBTWriter & a_Writer) -{ - a_Writer.BeginCompound("Level"); - a_Writer.AddInt("xPos", a_Chunk.m_ChunkX); - a_Writer.AddInt("zPos", a_Chunk.m_ChunkZ); - cNBTChunkSerializer Serializer(a_Writer); - if (!m_World->GetChunkData(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, Serializer)) - { - LOGWARNING("Cannot get chunk [%d, %d] data for NBT saving", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); - return false; - } - Serializer.Finish(); // Close NBT tags - - // Save biomes, both MCS (IntArray) and MC-vanilla (ByteArray): - if (Serializer.m_BiomesAreValid) - { - a_Writer.AddByteArray("Biomes", (const char *)(Serializer.m_VanillaBiomes), ARRAYCOUNT(Serializer.m_VanillaBiomes)); - a_Writer.AddIntArray ("MCSBiomes", (const int *)(Serializer.m_Biomes), ARRAYCOUNT(Serializer.m_Biomes)); - } - - // Save blockdata: - a_Writer.BeginList("Sections", TAG_Compound); - int SliceSizeBlock = cChunkDef::Width * cChunkDef::Width * 16; - int SliceSizeNibble = SliceSizeBlock / 2; - const char * BlockTypes = (const char *)(Serializer.m_BlockTypes); - const char * BlockMetas = (const char *)(Serializer.m_BlockMetas); - #ifdef DEBUG_SKYLIGHT - const char * BlockLight = (const char *)(Serializer.m_BlockSkyLight); - #else - const char * BlockLight = (const char *)(Serializer.m_BlockLight); - #endif - const char * BlockSkyLight = (const char *)(Serializer.m_BlockSkyLight); - for (int Y = 0; Y < 16; Y++) - { - a_Writer.BeginCompound(""); - a_Writer.AddByteArray("Blocks", BlockTypes + Y * SliceSizeBlock, SliceSizeBlock); - a_Writer.AddByteArray("Data", BlockMetas + Y * SliceSizeNibble, SliceSizeNibble); - a_Writer.AddByteArray("SkyLight", BlockSkyLight + Y * SliceSizeNibble, SliceSizeNibble); - a_Writer.AddByteArray("BlockLight", BlockLight + Y * SliceSizeNibble, SliceSizeNibble); - a_Writer.AddByte("Y", (unsigned char)Y); - a_Writer.EndCompound(); - } - a_Writer.EndList(); // "Sections" - - // Store the information that the lighting is valid. - // For compatibility reason, the default is "invalid" (missing) - this means older data is re-lighted upon loading. - if (Serializer.IsLightValid()) - { - a_Writer.AddByte("MCSIsLightValid", 1); - } - - a_Writer.EndCompound(); // "Level" - return true; -} - - - - - -cChunkDef::BiomeMap * cWSSAnvil::LoadVanillaBiomeMapFromNBT(cChunkDef::BiomeMap * a_BiomeMap, const cParsedNBT & a_NBT, int a_TagIdx) -{ - if ((a_TagIdx < 0) || (a_NBT.GetType(a_TagIdx) != TAG_ByteArray)) - { - return NULL; - } - if (a_NBT.GetDataLength(a_TagIdx) != 16 * 16) - { - // The biomes stored don't match in size - return NULL; - } - const unsigned char * VanillaBiomeData = (const unsigned char *)(a_NBT.GetData(a_TagIdx)); - for (int i = 0; i < ARRAYCOUNT(*a_BiomeMap); i++) - { - if ((VanillaBiomeData)[i] == 0xff) - { - // Unassigned biomes - return NULL; - } - (*a_BiomeMap)[i] = (EMCSBiome)(VanillaBiomeData[i]); - } - return a_BiomeMap; -} - - - - - -cChunkDef::BiomeMap * cWSSAnvil::LoadBiomeMapFromNBT(cChunkDef::BiomeMap * a_BiomeMap, const cParsedNBT & a_NBT, int a_TagIdx) -{ - if ((a_TagIdx < 0) || (a_NBT.GetType(a_TagIdx) != TAG_IntArray)) - { - return NULL; - } - if (a_NBT.GetDataLength(a_TagIdx) != sizeof(*a_BiomeMap)) - { - // The biomes stored don't match in size - return NULL; - } - const int * BiomeData = (const int *)(a_NBT.GetData(a_TagIdx)); - for (int i = 0; i < ARRAYCOUNT(*a_BiomeMap); i++) - { - (*a_BiomeMap)[i] = (EMCSBiome)(ntohl(BiomeData[i])); - if ((*a_BiomeMap)[i] == 0xff) - { - // Unassigned biomes - return NULL; - } - } - return a_BiomeMap; -} - - - - - -void cWSSAnvil::LoadEntitiesFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - if ((a_TagIdx < 0) || (a_NBT.GetType(a_TagIdx) != TAG_List)) - { - return; - } - - for (int Child = a_NBT.GetFirstChild(a_TagIdx); Child != -1; Child = a_NBT.GetNextSibling(Child)) - { - if (a_NBT.GetType(Child) != TAG_Compound) - { - continue; - } - int sID = a_NBT.FindChildByName(Child, "id"); - if (sID < 0) - { - continue; - } - LoadEntityFromNBT(a_Entities, a_NBT, Child, a_NBT.GetData(sID), a_NBT.GetDataLength(sID)); - } // for Child - a_NBT[] -} - - - - - -void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE * a_BlockTypes, NIBBLETYPE * a_BlockMetas) -{ - if ((a_TagIdx < 0) || (a_NBT.GetType(a_TagIdx) != TAG_List)) - { - return; - } - - for (int Child = a_NBT.GetFirstChild(a_TagIdx); Child != -1; Child = a_NBT.GetNextSibling(Child)) - { - if (a_NBT.GetType(Child) != TAG_Compound) - { - continue; - } - int sID = a_NBT.FindChildByName(Child, "id"); - if (sID < 0) - { - continue; - } - if (strncmp(a_NBT.GetData(sID), "Chest", a_NBT.GetDataLength(sID)) == 0) - { - LoadChestFromNBT(a_BlockEntities, a_NBT, Child); - } - else if (strncmp(a_NBT.GetData(sID), "Dropper", a_NBT.GetDataLength(sID)) == 0) - { - LoadDropperFromNBT(a_BlockEntities, a_NBT, Child); - } - else if (strncmp(a_NBT.GetData(sID), "Furnace", a_NBT.GetDataLength(sID)) == 0) - { - LoadFurnaceFromNBT(a_BlockEntities, a_NBT, Child, a_BlockTypes, a_BlockMetas); - } - else if (strncmp(a_NBT.GetData(sID), "Hopper", a_NBT.GetDataLength(sID)) == 0) - { - LoadHopperFromNBT(a_BlockEntities, a_NBT, Child); - } - else if (strncmp(a_NBT.GetData(sID), "Music", a_NBT.GetDataLength(sID)) == 0) - { - LoadNoteFromNBT(a_BlockEntities, a_NBT, Child); - } - else if (strncmp(a_NBT.GetData(sID), "RecordPlayer", a_NBT.GetDataLength(sID)) == 0) - { - LoadJukeboxFromNBT(a_BlockEntities, a_NBT, Child); - } - else if (strncmp(a_NBT.GetData(sID), "Sign", a_NBT.GetDataLength(sID)) == 0) - { - LoadSignFromNBT(a_BlockEntities, a_NBT, Child); - } - else if (strncmp(a_NBT.GetData(sID), "Trap", a_NBT.GetDataLength(sID)) == 0) - { - LoadDispenserFromNBT(a_BlockEntities, a_NBT, Child); - } - // TODO: Other block entities - } // for Child - tag children -} - - - - - -bool cWSSAnvil::LoadItemFromNBT(cItem & a_Item, const cParsedNBT & a_NBT, int a_TagIdx) -{ - int ID = a_NBT.FindChildByName(a_TagIdx, "id"); - if ((ID < 0) || (a_NBT.GetType(ID) != TAG_Short)) - { - return false; - } - a_Item.m_ItemType = (ENUM_ITEM_ID)(a_NBT.GetShort(ID)); - - int Damage = a_NBT.FindChildByName(a_TagIdx, "Damage"); - if ((Damage < 0) || (a_NBT.GetType(Damage) != TAG_Short)) - { - return false; - } - a_Item.m_ItemDamage = a_NBT.GetShort(Damage); - - int Count = a_NBT.FindChildByName(a_TagIdx, "Count"); - if ((Count < 0) || (a_NBT.GetType(Count) != TAG_Byte)) - { - return false; - } - a_Item.m_ItemCount = a_NBT.GetByte(Count); - - // Find the "tag" tag, used for enchantments and other extra data - int TagTag = a_NBT.FindChildByName(a_TagIdx, "tag"); - if (TagTag <= 0) - { - // No extra data - return true; - } - - // Load enchantments: - const char * EnchName = (a_Item.m_ItemType == E_ITEM_BOOK) ? "StoredEnchantments" : "ench"; - int EnchTag = a_NBT.FindChildByName(TagTag, EnchName); - if (EnchTag > 0) - { - a_Item.m_Enchantments.ParseFromNBT(a_NBT, EnchTag); - } - - return true; -} - - - - - -void cWSSAnvil::LoadItemGridFromNBT(cItemGrid & a_ItemGrid, const cParsedNBT & a_NBT, int a_ItemsTagIdx, int a_SlotOffset) -{ - int NumSlots = a_ItemGrid.GetNumSlots(); - for (int Child = a_NBT.GetFirstChild(a_ItemsTagIdx); Child != -1; Child = a_NBT.GetNextSibling(Child)) - { - int SlotTag = a_NBT.FindChildByName(Child, "Slot"); - if ((SlotTag < 0) || (a_NBT.GetType(SlotTag) != TAG_Byte)) - { - continue; - } - int SlotNum = (int)(a_NBT.GetByte(SlotTag)) - a_SlotOffset; - if ((SlotNum < 0) || (SlotNum >= NumSlots)) - { - // SlotNum outside of the range - continue; - } - cItem Item; - if (LoadItemFromNBT(Item, a_NBT, Child)) - { - a_ItemGrid.SetSlot(SlotNum, Item); - } - } // for itr - ItemDefs[] -} - - - - - -void cWSSAnvil::LoadChestFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - int Items = a_NBT.FindChildByName(a_TagIdx, "Items"); - if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List)) - { - return; // Make it an empty chest - the chunk loader will provide an empty cChestEntity for this - } - std::auto_ptr<cChestEntity> Chest(new cChestEntity(x, y, z, m_World)); - LoadItemGridFromNBT(Chest->GetContents(), a_NBT, Items); - a_BlockEntities.push_back(Chest.release()); -} - - - - - -void cWSSAnvil::LoadDispenserFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - int Items = a_NBT.FindChildByName(a_TagIdx, "Items"); - if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List)) - { - return; // Make it an empty dispenser - the chunk loader will provide an empty cDispenserEntity for this - } - std::auto_ptr<cDispenserEntity> Dispenser(new cDispenserEntity(x, y, z, m_World)); - LoadItemGridFromNBT(Dispenser->GetContents(), a_NBT, Items); - a_BlockEntities.push_back(Dispenser.release()); -} - - - - - -void cWSSAnvil::LoadDropperFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - int Items = a_NBT.FindChildByName(a_TagIdx, "Items"); - if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List)) - { - return; // Make it an empty dropper - the chunk loader will provide an empty cDropperEntity for this - } - std::auto_ptr<cDropperEntity> Dropper(new cDropperEntity(x, y, z, m_World)); - LoadItemGridFromNBT(Dropper->GetContents(), a_NBT, Items); - a_BlockEntities.push_back(Dropper.release()); -} - - - - - -void cWSSAnvil::LoadFurnaceFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE * a_BlockTypes, NIBBLETYPE * a_BlockMetas) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - int Items = a_NBT.FindChildByName(a_TagIdx, "Items"); - if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List)) - { - return; // Make it an empty furnace - the chunk loader will provide an empty cFurnaceEntity for this - } - - // Convert coords to relative: - int RelX = x; - int RelZ = z; - int ChunkX, ChunkZ; - cChunkDef::AbsoluteToRelative(RelX, y, RelZ, ChunkX, ChunkZ); - - // Create the furnace entity, with proper BlockType and BlockMeta info: - BLOCKTYPE BlockType = cChunkDef::GetBlock(a_BlockTypes, RelX, y, RelZ); - NIBBLETYPE BlockMeta = cChunkDef::GetNibble(a_BlockMetas, RelX, y, RelZ); - std::auto_ptr<cFurnaceEntity> Furnace(new cFurnaceEntity(x, y, z, BlockType, BlockMeta, m_World)); - - // Load slots: - for (int Child = a_NBT.GetFirstChild(Items); Child != -1; Child = a_NBT.GetNextSibling(Child)) - { - int Slot = a_NBT.FindChildByName(Child, "Slot"); - if ((Slot < 0) || (a_NBT.GetType(Slot) != TAG_Byte)) - { - continue; - } - cItem Item; - if (LoadItemFromNBT(Item, a_NBT, Child)) - { - Furnace->SetSlot(a_NBT.GetByte(Slot), Item); - } - } // for itr - ItemDefs[] - - // Load burn time: - int BurnTime = a_NBT.FindChildByName(a_TagIdx, "BurnTime"); - if (BurnTime >= 0) - { - Int16 bt = a_NBT.GetShort(BurnTime); - // Anvil doesn't store the time that the fuel can burn. We simply "reset" the current value to be the 100% - Furnace->SetBurnTimes(bt, 0); - } - - // Load cook time: - int CookTime = a_NBT.FindChildByName(a_TagIdx, "CookTime"); - if (CookTime >= 0) - { - Int16 ct = a_NBT.GetShort(CookTime); - // Anvil doesn't store the time that an item takes to cook. We simply use the default - 10 seconds (200 ticks) - Furnace->SetCookTimes(200, ct); - } - - // Restart cooking: - Furnace->ContinueCooking(); - a_BlockEntities.push_back(Furnace.release()); -} - - - - - -void cWSSAnvil::LoadHopperFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - int Items = a_NBT.FindChildByName(a_TagIdx, "Items"); - if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List)) - { - return; // Make it an empty hopper - the chunk loader will provide an empty cHopperEntity for this - } - std::auto_ptr<cHopperEntity> Hopper(new cHopperEntity(x, y, z, m_World)); - LoadItemGridFromNBT(Hopper->GetContents(), a_NBT, Items); - a_BlockEntities.push_back(Hopper.release()); -} - - - - - -void cWSSAnvil::LoadJukeboxFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - std::auto_ptr<cJukeboxEntity> Jukebox(new cJukeboxEntity(x, y, z, m_World)); - int Record = a_NBT.FindChildByName(a_TagIdx, "Record"); - if (Record >= 0) - { - Jukebox->SetRecord(a_NBT.GetInt(Record)); - } - a_BlockEntities.push_back(Jukebox.release()); -} - - - - - -void cWSSAnvil::LoadNoteFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - std::auto_ptr<cNoteEntity> Note(new cNoteEntity(x, y, z, m_World)); - int note = a_NBT.FindChildByName(a_TagIdx, "note"); - if (note >= 0) - { - Note->SetPitch(a_NBT.GetByte(note)); - } - a_BlockEntities.push_back(Note.release()); -} - - - - - -void cWSSAnvil::LoadSignFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound); - int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z)) - { - return; - } - std::auto_ptr<cSignEntity> Sign(new cSignEntity(E_BLOCK_SIGN_POST, x, y, z, m_World)); - - int currentLine = a_NBT.FindChildByName(a_TagIdx, "Text1"); - if (currentLine >= 0) - { - Sign->SetLine(0, a_NBT.GetString(currentLine)); - } - - currentLine = a_NBT.FindChildByName(a_TagIdx, "Text2"); - if (currentLine >= 0) - { - Sign->SetLine(1, a_NBT.GetString(currentLine)); - } - - currentLine = a_NBT.FindChildByName(a_TagIdx, "Text3"); - if (currentLine >= 0) - { - Sign->SetLine(2, a_NBT.GetString(currentLine)); - } - - currentLine = a_NBT.FindChildByName(a_TagIdx, "Text4"); - if (currentLine >= 0) - { - Sign->SetLine(3, a_NBT.GetString(currentLine)); - } - - a_BlockEntities.push_back(Sign.release()); -} - - - - - -void cWSSAnvil::LoadEntityFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_EntityTagIdx, const char * a_IDTag, int a_IDTagLength) -{ - if (strncmp(a_IDTag, "Boat", a_IDTagLength) == 0) - { - LoadBoatFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "FallingBlock", a_IDTagLength) == 0) - { - LoadFallingBlockFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "Minecart", a_IDTagLength) == 0) - { - // It is a minecart, old style, find out the type: - int TypeTag = a_NBT.FindChildByName(a_EntityTagIdx, "Type"); - if ((TypeTag < 0) || (a_NBT.GetType(TypeTag) != TAG_Int)) - { - return; - } - switch (a_NBT.GetInt(TypeTag)) - { - case 0: LoadMinecartRFromNBT(a_Entities, a_NBT, a_EntityTagIdx); break; // Rideable minecart - case 1: LoadMinecartCFromNBT(a_Entities, a_NBT, a_EntityTagIdx); break; // Minecart with chest - case 2: LoadMinecartFFromNBT(a_Entities, a_NBT, a_EntityTagIdx); break; // Minecart with furnace - case 3: LoadMinecartTFromNBT(a_Entities, a_NBT, a_EntityTagIdx); break; // Minecart with TNT - case 4: LoadMinecartHFromNBT(a_Entities, a_NBT, a_EntityTagIdx); break; // Minecart with Hopper - } - } - else if (strncmp(a_IDTag, "MinecartRideable", a_IDTagLength) == 0) - { - LoadMinecartRFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "MinecartChest", a_IDTagLength) == 0) - { - LoadMinecartCFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "MinecartFurnace", a_IDTagLength) == 0) - { - LoadMinecartFFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "MinecartTNT", a_IDTagLength) == 0) - { - LoadMinecartTFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "MinecartHopper", a_IDTagLength) == 0) - { - LoadMinecartHFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "Item", a_IDTagLength) == 0) - { - LoadPickupFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "Arrow", a_IDTagLength) == 0) - { - LoadArrowFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "Snowball", a_IDTagLength) == 0) - { - LoadSnowballFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "Egg", a_IDTagLength) == 0) - { - LoadEggFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "Fireball", a_IDTagLength) == 0) - { - LoadFireballFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "SmallFireball", a_IDTagLength) == 0) - { - LoadFireChargeFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - else if (strncmp(a_IDTag, "ThrownEnderpearl", a_IDTagLength) == 0) - { - LoadThrownEnderpearlFromNBT(a_Entities, a_NBT, a_EntityTagIdx); - } - // TODO: other entities -} - - - - - -void cWSSAnvil::LoadBoatFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cBoat> Boat(new cBoat(0, 0, 0)); - if (!LoadEntityBaseFromNBT(*Boat.get(), a_NBT, a_TagIdx)) - { - return; - } - a_Entities.push_back(Boat.release()); -} - - - - - -void cWSSAnvil::LoadFallingBlockFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - // TODO -} - - - - - -void cWSSAnvil::LoadMinecartRFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cEmptyMinecart> Minecart(new cEmptyMinecart(0, 0, 0)); - if (!LoadEntityBaseFromNBT(*Minecart.get(), a_NBT, a_TagIdx)) - { - return; - } - a_Entities.push_back(Minecart.release()); -} - - - - - -void cWSSAnvil::LoadMinecartCFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - int Items = a_NBT.FindChildByName(a_TagIdx, "Items"); - if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List)) - { - return; // Make it an empty chest - the chunk loader will provide an empty cChestEntity for this - } - std::auto_ptr<cMinecartWithChest> Minecart(new cMinecartWithChest(0, 0, 0)); - if (!LoadEntityBaseFromNBT(*Minecart.get(), a_NBT, a_TagIdx)) - { - return; - } - for (int Child = a_NBT.GetFirstChild(Items); Child != -1; Child = a_NBT.GetNextSibling(Child)) - { - int Slot = a_NBT.FindChildByName(Child, "Slot"); - if ((Slot < 0) || (a_NBT.GetType(Slot) != TAG_Byte)) - { - continue; - } - cItem Item; - if (LoadItemFromNBT(Item, a_NBT, Child)) - { - Minecart->SetSlot(a_NBT.GetByte(Slot), Item); - } - } // for itr - ItemDefs[] - a_Entities.push_back(Minecart.release()); -} - - - - - -void cWSSAnvil::LoadMinecartFFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cMinecartWithFurnace> Minecart(new cMinecartWithFurnace(0, 0, 0)); - if (!LoadEntityBaseFromNBT(*Minecart.get(), a_NBT, a_TagIdx)) - { - return; - } - - // TODO: Load the Push and Fuel tags - - a_Entities.push_back(Minecart.release()); -} - - - - - -void cWSSAnvil::LoadMinecartTFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cMinecartWithTNT> Minecart(new cMinecartWithTNT(0, 0, 0)); - if (!LoadEntityBaseFromNBT(*Minecart.get(), a_NBT, a_TagIdx)) - { - return; - } - - // TODO: Everything to do with TNT carts - - a_Entities.push_back(Minecart.release()); -} - - - - - -void cWSSAnvil::LoadMinecartHFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cMinecartWithHopper> Minecart(new cMinecartWithHopper(0, 0, 0)); - if (!LoadEntityBaseFromNBT(*Minecart.get(), a_NBT, a_TagIdx)) - { - return; - } - - // TODO: Everything to do with hopper carts - - a_Entities.push_back(Minecart.release()); -} - - - - - -void cWSSAnvil::LoadPickupFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - int ItemTag = a_NBT.FindChildByName(a_TagIdx, "Item"); - if ((ItemTag < 0) || (a_NBT.GetType(ItemTag) != TAG_Compound)) - { - return; - } - cItem Item; - if (!LoadItemFromNBT(Item, a_NBT, ItemTag)) - { - return; - } - std::auto_ptr<cPickup> Pickup(new cPickup(0, 0, 0, Item, false)); // Pickup delay doesn't matter, just say false - if (!LoadEntityBaseFromNBT(*Pickup.get(), a_NBT, a_TagIdx)) - { - return; - } - a_Entities.push_back(Pickup.release()); -} - - - - - -void cWSSAnvil::LoadArrowFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cArrowEntity> Arrow(new cArrowEntity(NULL, 0, 0, 0, Vector3d(0, 0, 0))); - if (!LoadProjectileBaseFromNBT(*Arrow.get(), a_NBT, a_TagIdx)) - { - return; - } - - // Load pickup state: - int PickupIdx = a_NBT.FindChildByName(a_TagIdx, "pickup"); - if (PickupIdx > 0) - { - Arrow->SetPickupState((cArrowEntity::ePickupState)a_NBT.GetByte(PickupIdx)); - } - else - { - // Try the older "player" tag: - int PlayerIdx = a_NBT.FindChildByName(a_TagIdx, "player"); - if (PlayerIdx > 0) - { - Arrow->SetPickupState((a_NBT.GetByte(PlayerIdx) == 0) ? cArrowEntity::psNoPickup : cArrowEntity::psInSurvivalOrCreative); - } - } - - // Load damage: - int DamageIdx = a_NBT.FindChildByName(a_TagIdx, "damage"); - if (DamageIdx > 0) - { - Arrow->SetDamageCoeff(a_NBT.GetDouble(DamageIdx)); - } - - // Store the new arrow in the entities list: - a_Entities.push_back(Arrow.release()); -} - - - - - -void cWSSAnvil::LoadSnowballFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cThrownSnowballEntity> Snowball(new cThrownSnowballEntity(NULL, 0, 0, 0, Vector3d(0, 0, 0))); - if (!LoadProjectileBaseFromNBT(*Snowball.get(), a_NBT, a_TagIdx)) - { - return; - } - - // Store the new snowball in the entities list: - a_Entities.push_back(Snowball.release()); -} - - - - - -void cWSSAnvil::LoadEggFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cThrownEggEntity> Egg(new cThrownEggEntity(NULL, 0, 0, 0, Vector3d(0, 0, 0))); - if (!LoadProjectileBaseFromNBT(*Egg.get(), a_NBT, a_TagIdx)) - { - return; - } - - // Store the new egg in the entities list: - a_Entities.push_back(Egg.release()); -} - - - - - -void cWSSAnvil::LoadFireballFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cGhastFireballEntity> Fireball(new cGhastFireballEntity(NULL, 0, 0, 0, Vector3d(0, 0, 0))); - if (!LoadProjectileBaseFromNBT(*Fireball.get(), a_NBT, a_TagIdx)) - { - return; - } - - // Store the new fireball in the entities list: - a_Entities.push_back(Fireball.release()); -} - - - - - -void cWSSAnvil::LoadFireChargeFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cFireChargeEntity> FireCharge(new cFireChargeEntity(NULL, 0, 0, 0, Vector3d(0, 0, 0))); - if (!LoadProjectileBaseFromNBT(*FireCharge.get(), a_NBT, a_TagIdx)) - { - return; - } - - // Store the new FireCharge in the entities list: - a_Entities.push_back(FireCharge.release()); -} - - - - - -void cWSSAnvil::LoadThrownEnderpearlFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx) -{ - std::auto_ptr<cThrownEnderPearlEntity> Enderpearl(new cThrownEnderPearlEntity(NULL, 0, 0, 0, Vector3d(0, 0, 0))); - if (!LoadProjectileBaseFromNBT(*Enderpearl.get(), a_NBT, a_TagIdx)) - { - return; - } - - // Store the new enderpearl in the entities list: - a_Entities.push_back(Enderpearl.release()); -} - - - - - -bool cWSSAnvil::LoadEntityBaseFromNBT(cEntity & a_Entity, const cParsedNBT & a_NBT, int a_TagIdx) -{ - double Pos[3]; - if (!LoadDoublesListFromNBT(Pos, 3, a_NBT, a_NBT.FindChildByName(a_TagIdx, "Pos"))) - { - return false; - } - a_Entity.SetPosition(Pos[0], Pos[1], Pos[2]); - - double Speed[3]; - if (!LoadDoublesListFromNBT(Speed, 3, a_NBT, a_NBT.FindChildByName(a_TagIdx, "Motion"))) - { - return false; - } - a_Entity.SetSpeed(Speed[0], Speed[1], Speed[2]); - - double Rotation[3]; - if (!LoadDoublesListFromNBT(Rotation, 2, a_NBT, a_NBT.FindChildByName(a_TagIdx, "Rotation"))) - { - return false; - } - a_Entity.SetRotation(Rotation[0]); - a_Entity.SetRoll (Rotation[1]); - - return true; -} - - - - - -bool cWSSAnvil::LoadProjectileBaseFromNBT(cProjectileEntity & a_Entity, const cParsedNBT & a_NBT, int a_TagIdx) -{ - if (!LoadEntityBaseFromNBT(a_Entity, a_NBT, a_TagIdx)) - { - return false; - } - - bool IsInGround = false; - int InGroundIdx = a_NBT.FindChildByName(a_TagIdx, "inGround"); - if (InGroundIdx > 0) - { - IsInGround = (a_NBT.GetByte(InGroundIdx) != 0); - } - a_Entity.SetIsInGround(IsInGround); - - // TODO: Load inTile, TileCoords - - return true; -} - - - - - -bool cWSSAnvil::LoadDoublesListFromNBT(double * a_Doubles, int a_NumDoubles, const cParsedNBT & a_NBT, int a_TagIdx) -{ - if ((a_TagIdx < 0) || (a_NBT.GetType(a_TagIdx) != TAG_List) || (a_NBT.GetChildrenType(a_TagIdx) != TAG_Double)) - { - return false; - } - int idx = 0; - for (int Tag = a_NBT.GetFirstChild(a_TagIdx); (Tag > 0) && (idx < a_NumDoubles); Tag = a_NBT.GetNextSibling(Tag), ++idx) - { - a_Doubles[idx] = a_NBT.GetDouble(Tag); - } // for Tag - PosTag[] - return (idx == a_NumDoubles); // Did we read enough doubles? -} - - - - - -bool cWSSAnvil::GetBlockEntityNBTPos(const cParsedNBT & a_NBT, int a_TagIdx, int & a_X, int & a_Y, int & a_Z) -{ - int x = a_NBT.FindChildByName(a_TagIdx, "x"); - if ((x < 0) || (a_NBT.GetType(x) != TAG_Int)) - { - return false; - } - int y = a_NBT.FindChildByName(a_TagIdx, "y"); - if ((y < 0) || (a_NBT.GetType(y) != TAG_Int)) - { - return false; - } - int z = a_NBT.FindChildByName(a_TagIdx, "z"); - if ((z < 0) || (a_NBT.GetType(z) != TAG_Int)) - { - return false; - } - a_X = a_NBT.GetInt(x); - a_Y = a_NBT.GetInt(y); - a_Z = a_NBT.GetInt(z); - return true; -} - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// cWSSAnvil::cMCAFile: - -cWSSAnvil::cMCAFile::cMCAFile(const AString & a_FileName, int a_RegionX, int a_RegionZ) : - m_RegionX(a_RegionX), - m_RegionZ(a_RegionZ), - m_FileName(a_FileName) -{ -} - - - - - -bool cWSSAnvil::cMCAFile::OpenFile(bool a_IsForReading) -{ - if (m_File.IsOpen()) - { - // Already open - return true; - } - - if (a_IsForReading) - { - if (!cFile::Exists(m_FileName)) - { - // We want to read and the file doesn't exist. Fail. - return false; - } - } - - if (!m_File.Open(m_FileName, cFile::fmReadWrite)) - { - // The file failed to open - return false; - } - - // Load the header: - if (m_File.Read(m_Header, sizeof(m_Header)) != sizeof(m_Header)) - { - // Cannot read the header - perhaps the file has just been created? - // Try writing a NULL header (both chunk offsets and timestamps): - memset(m_Header, 0, sizeof(m_Header)); - if ( - (m_File.Write(m_Header, sizeof(m_Header)) != sizeof(m_Header)) || // Real header - chunk offsets - (m_File.Write(m_Header, sizeof(m_Header)) != sizeof(m_Header)) // Bogus data for the chunk timestamps - ) - { - LOGWARNING("Cannot process MCA header in file \"%s\", chunks in that file will be lost", m_FileName.c_str()); - m_File.Close(); - return false; - } - } - return true; -} - - - - - -bool cWSSAnvil::cMCAFile::GetChunkData(const cChunkCoords & a_Chunk, AString & a_Data) -{ - if (!OpenFile(true)) - { - return false; - } - - int LocalX = a_Chunk.m_ChunkX % 32; - if (LocalX < 0) - { - LocalX = 32 + LocalX; - } - int LocalZ = a_Chunk.m_ChunkZ % 32; - if (LocalZ < 0) - { - LocalZ = 32 + LocalZ; - } - unsigned ChunkLocation = ntohl(m_Header[LocalX + 32 * LocalZ]); - unsigned ChunkOffset = ChunkLocation >> 8; - - m_File.Seek(ChunkOffset * 4096); - - int ChunkSize = 0; - if (m_File.Read(&ChunkSize, 4) != 4) - { - return false; - } - ChunkSize = ntohl(ChunkSize); - char CompressionType = 0; - if (m_File.Read(&CompressionType, 1) != 1) - { - return false; - } - if (CompressionType != 2) - { - // Chunk is in an unknown compression - return false; - } - ChunkSize--; - - // HACK: This depends on the internal knowledge that AString's data() function returns the internal buffer directly - a_Data.assign(ChunkSize, '\0'); - return (m_File.Read((void *)a_Data.data(), ChunkSize) == ChunkSize); -} - - - - - -bool cWSSAnvil::cMCAFile::SetChunkData(const cChunkCoords & a_Chunk, const AString & a_Data) -{ - if (!OpenFile(false)) - { - LOGWARNING("Cannot save chunk [%d, %d], opening file \"%s\" failed", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, GetFileName().c_str()); - return false; - } - - int LocalX = a_Chunk.m_ChunkX % 32; - if (LocalX < 0) - { - LocalX = 32 + LocalX; - } - int LocalZ = a_Chunk.m_ChunkZ % 32; - if (LocalZ < 0) - { - LocalZ = 32 + LocalZ; - } - - unsigned ChunkSector = FindFreeLocation(LocalX, LocalZ, a_Data); - - // Store the chunk data: - m_File.Seek(ChunkSector * 4096); - unsigned ChunkSize = htonl(a_Data.size() + 1); - if (m_File.Write(&ChunkSize, 4) != 4) - { - LOGWARNING("Cannot save chunk [%d, %d], writing(1) data to file \"%s\" failed", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, GetFileName().c_str()); - return false; - } - char CompressionType = 2; - if (m_File.Write(&CompressionType, 1) != 1) - { - LOGWARNING("Cannot save chunk [%d, %d], writing(2) data to file \"%s\" failed", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, GetFileName().c_str()); - return false; - } - if (m_File.Write(a_Data.data(), a_Data.size()) != (int)(a_Data.size())) - { - LOGWARNING("Cannot save chunk [%d, %d], writing(3) data to file \"%s\" failed", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, GetFileName().c_str()); - return false; - } - - // Store the header: - ChunkSize = (a_Data.size() + MCA_CHUNK_HEADER_LENGTH + 4095) / 4096; // Round data size *up* to nearest 4KB sector, make it a sector number - ASSERT(ChunkSize < 256); - m_Header[LocalX + 32 * LocalZ] = htonl((ChunkSector << 8) | ChunkSize); - if (m_File.Seek(0) < 0) - { - LOGWARNING("Cannot save chunk [%d, %d], seeking in file \"%s\" failed", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, GetFileName().c_str()); - return false; - } - if (m_File.Write(m_Header, sizeof(m_Header)) != sizeof(m_Header)) - { - LOGWARNING("Cannot save chunk [%d, %d], writing header to file \"%s\" failed", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, GetFileName().c_str()); - return false; - } - - return true; -} - - - - - -unsigned cWSSAnvil::cMCAFile::FindFreeLocation(int a_LocalX, int a_LocalZ, const AString & a_Data) -{ - // See if it fits the current location: - unsigned ChunkLocation = ntohl(m_Header[a_LocalX + 32 * a_LocalZ]); - unsigned ChunkLen = ChunkLocation & 0xff; - if (a_Data.size() + MCA_CHUNK_HEADER_LENGTH <= (ChunkLen * 4096)) - { - return ChunkLocation >> 8; - } - - // Doesn't fit, append to the end of file (we're wasting a lot of space, TODO: fix this later) - unsigned MaxLocation = 2 << 8; // Minimum sector is #2 - after the headers - for (int i = 0; i < ARRAYCOUNT(m_Header); i++) - { - ChunkLocation = ntohl(m_Header[i]); - ChunkLocation = ChunkLocation + ((ChunkLocation & 0xff) << 8); // Add the number of sectors used; don't care about the 4th byte - if (MaxLocation < ChunkLocation) - { - MaxLocation = ChunkLocation; - } - } // for i - m_Header[] - return MaxLocation >> 8; -} - - - - |