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authorTiger Wang <ziwei.tiger@hotmail.co.uk>2013-11-27 22:35:13 +0100
committerTiger Wang <ziwei.tiger@hotmail.co.uk>2013-11-27 22:35:13 +0100
commita6630d32394120a78af56bc612fa3c3449283248 (patch)
tree2c791266b0f213cd56961299da8d2258b8f85d8e /src/WorldStorage/WSSAnvil.cpp
parentFixed spawn point being generally in an ocean (diff)
parentVoronoi-related biomegens use the new cVoronoiMap class. (diff)
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Diffstat (limited to 'src/WorldStorage/WSSAnvil.cpp')
-rw-r--r--src/WorldStorage/WSSAnvil.cpp1555
1 files changed, 1555 insertions, 0 deletions
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp
new file mode 100644
index 000000000..79be4dfa2
--- /dev/null
+++ b/src/WorldStorage/WSSAnvil.cpp
@@ -0,0 +1,1555 @@
+
+// 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/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;
+}
+
+
+
+