public BlockEntity GetBlockEntity(BlockCoordinates blockCoordinates)
{
var blockEntity = BlockEntities.FirstOrDefault(entity => entity.Coordinates == blockCoordinates);
if (blockEntity != null)
{
return(blockEntity);
}
ChunkColumn chunk = _worldProvider.GenerateChunkColumn(new ChunkCoordinates(blockCoordinates.X >> 4, blockCoordinates.Z >> 4));
NbtCompound nbt = chunk?.GetBlockEntity(blockCoordinates);
if (nbt == null)
{
return(null);
}
string id = null;
var idTag = nbt.Get("id");
if (idTag != null)
{
id = idTag.StringValue;
}
if (string.IsNullOrEmpty(id))
{
return(null);
}
blockEntity = BlockEntityFactory.GetBlockEntityById(id);
if (blockEntity == null)
{
return(null);
}
blockEntity.Coordinates = blockCoordinates;
blockEntity.SetCompound(nbt);
return(blockEntity);
}
public ChunkColumn GetChunk(ChunkCoordinates coordinates, string basePath, IWorldProvider generator, int yoffset)
{
int width = 32;
int depth = 32;
int rx = coordinates.X >> 5;
int rz = coordinates.Z >> 5;
string filePath = Path.Combine(basePath, string.Format(@"region{2}r.{0}.{1}.mca", rx, rz, Path.DirectorySeparatorChar));
if (!File.Exists(filePath))
{
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
chunkColumn.NeedSave = true;
}
return(chunkColumn);
//return new ChunkColumn
//{
// x = coordinates.X,
// z = coordinates.Z,
//};
}
using (var regionFile = File.OpenRead(filePath))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, 8192);
int xi = (coordinates.X % width);
if (xi < 0)
{
xi += 32;
}
int zi = (coordinates.Z % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
byte[] bytes = BitConverter.GetBytes(offset >> 4);
Array.Reverse(bytes);
if (offset != 0 && offsetBuffer[0] != bytes[0] && offsetBuffer[1] != bytes[1] && offsetBuffer[2] != bytes[2])
{
throw new Exception($"Not the same buffer\n{Package.HexDump(offsetBuffer)}\n{Package.HexDump(bytes)}");
}
int length = regionFile.ReadByte();
if (offset == 0 || length == 0)
{
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
chunkColumn.NeedSave = true;
}
return(chunkColumn);
//return new ChunkColumn
//{
// x = coordinates.X,
// z = coordinates.Z,
//};
}
regionFile.Seek(offset, SeekOrigin.Begin);
byte[] waste = new byte[4];
regionFile.Read(waste, 0, 4);
int compressionMode = regionFile.ReadByte();
if (compressionMode != 0x02)
{
throw new Exception($"CX={coordinates.X}, CZ={coordinates.Z}, NBT wrong compression. Expected 0x02, got 0x{compressionMode :X2}. " +
$"Offset={offset}, length={length}\n{Package.HexDump(waste)}");
}
var nbt = new NbtFile();
nbt.LoadFromStream(regionFile, NbtCompression.ZLib);
NbtTag dataTag = nbt.RootTag["Level"];
NbtList sections = dataTag["Sections"] as NbtList;
ChunkColumn chunk = new ChunkColumn
{
x = coordinates.X,
z = coordinates.Z,
biomeId = dataTag["Biomes"].ByteArrayValue,
isAllAir = true
};
if (chunk.biomeId.Length > 256)
{
throw new Exception();
}
// This will turn into a full chunk column
foreach (NbtTag sectionTag in sections)
{
ReadSection(yoffset, sectionTag, chunk);
}
NbtList entities = dataTag["Entities"] as NbtList;
NbtList blockEntities = dataTag["TileEntities"] as NbtList;
if (blockEntities != null)
{
foreach (var nbtTag in blockEntities)
{
var blockEntityTag = (NbtCompound)nbtTag.Clone();
string entityId = blockEntityTag["id"].StringValue;
int x = blockEntityTag["x"].IntValue;
int y = blockEntityTag["y"].IntValue - yoffset;
int z = blockEntityTag["z"].IntValue;
blockEntityTag["y"] = new NbtInt("y", y);
BlockEntity blockEntity = BlockEntityFactory.GetBlockEntityById(entityId);
if (blockEntity != null)
{
blockEntityTag.Name = string.Empty;
if (blockEntity is Sign)
{
// Remove the JSON stuff and get the text out of extra data.
// TAG_String("Text2"): "{"extra":["10c a loaf!"],"text":""}"
CleanSignText(blockEntityTag, "Text1");
CleanSignText(blockEntityTag, "Text2");
CleanSignText(blockEntityTag, "Text3");
CleanSignText(blockEntityTag, "Text4");
}
else if (blockEntity is ChestBlockEntity)
{
NbtList items = (NbtList)blockEntityTag["Items"];
if (items != null)
{
//for (byte i = 0; i < items.Count; i++)
//{
// NbtCompound item = (NbtCompound) items[i];
// item.Add(new NbtShort("OriginalDamage", item["Damage"].ShortValue));
// byte metadata = (byte) (item["Damage"].ShortValue & 0xff);
// item.Remove("Damage");
// item.Add(new NbtByte("Damage", metadata));
//}
}
}
chunk.SetBlockEntity(new BlockCoordinates(x, y, z), blockEntityTag);
}
}
}
//NbtList tileTicks = dataTag["TileTicks"] as NbtList;
chunk.isDirty = false;
return(chunk);
}
}
public static ChunkColumn GetChunk(ChunkCoordinates coordinates, string basePath, IWorldProvider generator, int yoffset)
{
int width = 32;
int depth = 32;
int rx = coordinates.X >> 5;
int rz = coordinates.Z >> 5;
string filePath = Path.Combine(basePath, string.Format(@"region\r.{0}.{1}.mca", rx, rz));
if (!File.Exists(filePath))
{
return(generator.GenerateChunkColumn(coordinates));
}
using (var regionFile = File.OpenRead(filePath))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, 8192);
int xi = (coordinates.X % width);
if (xi < 0)
{
xi += 32;
}
int zi = (coordinates.Z % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
int length = regionFile.ReadByte();
if (offset == 0 || length == 0)
{
return(generator.GenerateChunkColumn(coordinates));
}
regionFile.Seek(offset, SeekOrigin.Begin);
byte[] waste = new byte[4];
regionFile.Read(waste, 0, 4);
int compressionMode = regionFile.ReadByte();
var nbt = new NbtFile();
nbt.LoadFromStream(regionFile, NbtCompression.ZLib);
NbtTag dataTag = nbt.RootTag["Level"];
NbtList sections = dataTag["Sections"] as NbtList;
ChunkColumn chunk = new ChunkColumn
{
x = coordinates.X,
z = coordinates.Z,
biomeId = dataTag["Biomes"].ByteArrayValue
};
for (int i = 0; i < chunk.biomeId.Length; i++)
{
if (chunk.biomeId[i] > 22)
{
chunk.biomeId[i] = 0;
}
}
if (chunk.biomeId.Length > 256)
{
throw new Exception();
}
// This will turn into a full chunk column
foreach (NbtTag sectionTag in sections)
{
int sy = sectionTag["Y"].ByteValue * 16;
byte[] blocks = sectionTag["Blocks"].ByteArrayValue;
byte[] data = sectionTag["Data"].ByteArrayValue;
NbtTag addTag = sectionTag["Add"];
byte[] adddata = new byte[2048];
if (addTag != null)
{
adddata = addTag.ByteArrayValue;
}
byte[] blockLight = sectionTag["BlockLight"].ByteArrayValue;
byte[] skyLight = sectionTag["SkyLight"].ByteArrayValue;
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
for (int y = 0; y < 16; y++)
{
int yi = sy + y - yoffset;
if (yi < 0 || yi >= 128)
{
continue;
}
int anvilIndex = y * 16 * 16 + z * 16 + x;
int blockId = blocks[anvilIndex] + (Nibble4(adddata, anvilIndex) << 8);
// Anvil to PE friendly converstion
if (blockId == 125)
{
blockId = 5;
}
else if (blockId == 126)
{
blockId = 158;
}
else if (blockId == 75)
{
blockId = 50;
}
else if (blockId == 76)
{
blockId = 50;
}
else if (blockId == 123)
{
blockId = 89;
}
else if (blockId == 124)
{
blockId = 89;
}
else if (blockId == 152)
{
blockId = 73;
}
else if (_ignore.BinarySearch(blockId) >= 0)
{
blockId = 0;
}
else if (_gaps.BinarySearch(blockId) >= 0)
{
Debug.WriteLine("Missing material: " + blockId);
blockId = 133;
}
if (blockId > 255)
{
blockId = 41;
}
if (yi == 127 && blockId != 0)
{
blockId = 30;
}
if (yi == 0 && (blockId == 8 || blockId == 9 /*|| blockId == 0*/))
{
blockId = 7;
}
//if (blockId != 0) blockId = 41;
chunk.SetBlock(x, yi, z, (byte)blockId);
chunk.SetMetadata(x, yi, z, Nibble4(data, anvilIndex));
chunk.SetBlocklight(x, yi, z, Nibble4(blockLight, anvilIndex));
chunk.SetSkylight(x, yi, z, Nibble4(skyLight, anvilIndex));
}
}
}
}
NbtList entities = dataTag["Entities"] as NbtList;
NbtList blockEntities = dataTag["TileEntities"] as NbtList;
if (blockEntities != null)
{
foreach (var nbtTag in blockEntities)
{
var blockEntityTag = (NbtCompound)nbtTag;
string entityId = blockEntityTag["id"].StringValue;
int x = blockEntityTag["x"].IntValue;
int y = blockEntityTag["y"].IntValue - yoffset;
int z = blockEntityTag["z"].IntValue;
blockEntityTag["y"] = new NbtInt("y", y);
BlockEntity blockEntity = BlockEntityFactory.GetBlockEntityById(entityId);
if (blockEntity != null)
{
blockEntityTag.Name = string.Empty;
chunk.SetBlockEntity(new BlockCoordinates(x, y, z), blockEntityTag);
}
}
}
NbtList tileTicks = dataTag["TileTicks"] as NbtList;
chunk.isDirty = false;
return(chunk);
}
}
public ChunkColumn GetChunk(ChunkCoordinates coordinates, string basePath, IWorldGenerator generator)
{
try
{
const int width = 32;
const int depth = 32;
int rx = coordinates.X >> 5;
int rz = coordinates.Z >> 5;
string filePath = Path.Combine(basePath, string.Format(@"region{2}r.{0}.{1}.mca", rx, rz, Path.DirectorySeparatorChar));
if (!File.Exists(filePath))
{
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
//SkyLightBlockAccess blockAccess = new SkyLightBlockAccess(this, chunkColumn);
//new SkyLightCalculations().RecalcSkyLight(chunkColumn, blockAccess);
}
return(chunkColumn);
}
using (var regionFile = File.OpenRead(filePath))
{
int locationIndex = ((coordinates.X & (width - 1)) + (coordinates.Z & (depth - 1)) * width) << 2;
regionFile.Seek(locationIndex, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
int sectorCount = regionFile.ReadByte();
if (offset == 0 || sectorCount == 0)
{
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
chunkColumn.NeedSave = true;
}
return(chunkColumn);
}
/*regionFile.Seek(4096 + locationIndex, SeekOrigin.Begin);
* regionFile.Read(offsetBuffer, 0, 4);
* Array.Reverse(offsetBuffer);
* int lastModified = BitConverter.ToInt32(offsetBuffer, 0);
* Log.Warn("Last modified: " + lastModified);*/
regionFile.Seek(offset + 4, SeekOrigin.Begin); //Offset + the length header
int compressionMode = regionFile.ReadByte();
if (compressionMode != 0x02)
{
throw new Exception($"CX={coordinates.X}, CZ={coordinates.Z}, NBT wrong compression. Expected 0x02, got 0x{compressionMode:X2}. " +
$"Offset={offset}, Sectors={sectorCount}");
}
var nbt = new NbtFile();
nbt.LoadFromStream(regionFile, NbtCompression.ZLib);
NbtCompound dataTag = (NbtCompound)nbt.RootTag["Level"];
bool isPocketEdition = false;
if (dataTag.Contains("MCPE BID"))
{
isPocketEdition = dataTag["MCPE BID"].ByteValue == 1;
}
NbtList sections = dataTag["Sections"] as NbtList;
ChunkColumn chunk = new ChunkColumn
{
x = coordinates.X,
z = coordinates.Z,
biomeId = dataTag["Biomes"].ByteArrayValue,
isAllAir = true
};
if (chunk.biomeId.Length > 256)
{
throw new Exception();
}
NbtTag heights = dataTag["HeightMap"] as NbtIntArray;
if (heights != null)
{
int[] intHeights = heights.IntArrayValue;
for (int i = 0; i < 256; i++)
{
chunk.height[i] = (short)intHeights[i];
}
}
// This will turn into a full chunk column
foreach (NbtTag sectionTag in sections)
{
ReadSection(sectionTag, chunk, !isPocketEdition);
}
NbtList entities = dataTag["Entities"] as NbtList;
if (entities != null)
{
chunk.Entities = entities.ToArray <NbtCompound>();
}
NbtList blockEntities = dataTag["TileEntities"] as NbtList;
if (blockEntities != null)
{
foreach (var nbtTag in blockEntities)
{
var blockEntityTag = (NbtCompound)nbtTag.Clone();
string entityId = blockEntityTag["id"].StringValue;
int x = blockEntityTag["x"].IntValue;
int y = blockEntityTag["y"].IntValue;
int z = blockEntityTag["z"].IntValue;
if (entityId.StartsWith("minecraft:"))
{
var id = entityId.Split(':')[1];
entityId = id.First().ToString().ToUpper() + id.Substring(1);
blockEntityTag["id"] = new NbtString("id", entityId);
}
BlockEntity blockEntity = BlockEntityFactory.GetBlockEntityById(entityId);
if (blockEntity != null)
{
blockEntityTag.Name = string.Empty;
if (blockEntity is Sign)
{
// Remove the JSON stuff and get the text out of extra data.
// TAG_String("Text2"): "{"extra":["10c a loaf!"],"text":""}"
CleanSignText(blockEntityTag, "Text1");
CleanSignText(blockEntityTag, "Text2");
CleanSignText(blockEntityTag, "Text3");
CleanSignText(blockEntityTag, "Text4");
}
else if (blockEntity is ChestBlockEntity)
{
NbtList items = (NbtList)blockEntityTag["Items"];
if (items != null)
{
//for (byte i = 0; i < items.Count; i++)
//{
// NbtCompound item = (NbtCompound) items[i];
// item.Add(new NbtShort("OriginalDamage", item["Damage"].ShortValue));
// byte metadata = (byte) (item["Damage"].ShortValue & 0xff);
// item.Remove("Damage");
// item.Add(new NbtByte("Damage", metadata));
//}
}
}
chunk.SetBlockEntity(new BlockCoordinates(x, y, z), blockEntityTag);
}
else
{
if (Log.IsDebugEnabled)
{
Log.Debug($"Loaded unknown block entity: {blockEntityTag}");
}
}
}
}
//NbtList tileTicks = dataTag["TileTicks"] as NbtList;
chunk.RecalcHeight();
chunk.isDirty = false;
chunk.NeedSave = false;
if (Config.GetProperty("CalculateLights", false))
{
SkyLightBlockAccess blockAccess = new SkyLightBlockAccess(this, chunk);
new SkyLightCalculations().RecalcSkyLight(chunk, blockAccess);
//TODO: Block lights.
}
return(chunk);
}
}
catch (Exception e)
{
Log.Error($"Loading chunk {coordinates}", e);
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
//chunkColumn.NeedSave = true;
}
return(chunkColumn);
}
}
public static ChunkColumn GetChunk(ChunkCoordinates coordinates, string basePath, IWorldProvider generator, int yoffset)
{
int width = 32;
int depth = 32;
int rx = coordinates.X >> 5;
int rz = coordinates.Z >> 5;
string filePath = Path.Combine(basePath, string.Format(@"region{2}r.{0}.{1}.mca", rx, rz, Path.DirectorySeparatorChar));
if (!File.Exists(filePath))
{
return(generator?.GenerateChunkColumn(coordinates));
//return new ChunkColumn
//{
// x = coordinates.X,
// z = coordinates.Z,
//};
}
using (var regionFile = File.OpenRead(filePath))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, 8192);
int xi = (coordinates.X % width);
if (xi < 0)
{
xi += 32;
}
int zi = (coordinates.Z % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
int length = regionFile.ReadByte();
if (offset == 0 || length == 0)
{
return(generator?.GenerateChunkColumn(coordinates));
//return new ChunkColumn
//{
// x = coordinates.X,
// z = coordinates.Z,
//};
}
regionFile.Seek(offset, SeekOrigin.Begin);
byte[] waste = new byte[4];
regionFile.Read(waste, 0, 4);
int compressionMode = regionFile.ReadByte();
var nbt = new NbtFile();
nbt.LoadFromStream(regionFile, NbtCompression.ZLib);
NbtTag dataTag = nbt.RootTag["Level"];
NbtList sections = dataTag["Sections"] as NbtList;
ChunkColumn chunk = new ChunkColumn
{
x = coordinates.X,
z = coordinates.Z,
biomeId = dataTag["Biomes"].ByteArrayValue
};
for (int i = 0; i < chunk.biomeId.Length; i++)
{
if (chunk.biomeId[i] > 22)
{
chunk.biomeId[i] = 0;
}
}
if (chunk.biomeId.Length > 256)
{
throw new Exception();
}
// This will turn into a full chunk column
foreach (NbtTag sectionTag in sections)
{
int sy = sectionTag["Y"].ByteValue * 16;
byte[] blocks = sectionTag["Blocks"].ByteArrayValue;
byte[] data = sectionTag["Data"].ByteArrayValue;
NbtTag addTag = sectionTag["Add"];
byte[] adddata = new byte[2048];
if (addTag != null)
{
adddata = addTag.ByteArrayValue;
}
byte[] blockLight = sectionTag["BlockLight"].ByteArrayValue;
byte[] skyLight = sectionTag["SkyLight"].ByteArrayValue;
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
for (int y = 0; y < 16; y++)
{
int yi = sy + y - yoffset;
if (yi < 0 || yi >= 128)
{
continue;
}
int anvilIndex = y * 16 * 16 + z * 16 + x;
int blockId = blocks[anvilIndex] + (Nibble4(adddata, anvilIndex) << 8);
Func <int, byte, byte> dataConverter = (i, b) => b;
// Anvil to PE friendly converstion
if (Convert.ContainsKey(blockId))
{
dataConverter = Convert[blockId].Item2;
blockId = Convert[blockId].Item1;
}
else if (Ignore.BinarySearch(blockId) >= 0)
{
blockId = 0;
}
else if (Gaps.BinarySearch(blockId) >= 0)
{
Log.WarnFormat("Missing material on convert: {0}", blockId);
blockId = 133;
}
if (blockId > 255)
{
blockId = 41;
}
//if (yi == 127 && blockId != 0) blockId = 30;
if (yi == 0 && (blockId == 8 || blockId == 9))
{
blockId = 7;
}
chunk.SetBlock(x, yi, z, (byte)blockId);
byte metadata = Nibble4(data, anvilIndex);
metadata = dataConverter(blockId, metadata);
chunk.SetMetadata(x, yi, z, metadata);
chunk.SetBlocklight(x, yi, z, Nibble4(blockLight, anvilIndex));
chunk.SetSkylight(x, yi, z, Nibble4(skyLight, anvilIndex));
var block = BlockFactory.GetBlockById(chunk.GetBlock(x, yi, z));
if (block is BlockStairs || block is StoneSlab || block is WoodSlab)
{
chunk.SetSkylight(x, yi, z, 0xff);
}
if (blockId == 43 && chunk.GetMetadata(x, yi, z) == 7)
{
chunk.SetMetadata(x, yi, z, 6);
}
else if (blockId == 44 && chunk.GetMetadata(x, yi, z) == 7)
{
chunk.SetMetadata(x, yi, z, 6);
}
else if (blockId == 44 && chunk.GetMetadata(x, yi, z) == 15)
{
chunk.SetMetadata(x, yi, z, 14);
}
else if (blockId == 3 && chunk.GetMetadata(x, yi, z) == 1)
{
chunk.SetBlock(x, yi, z, 198);
chunk.SetMetadata(x, yi, z, 0);
}
else if (blockId == 3 && chunk.GetMetadata(x, yi, z) == 2)
{
chunk.SetBlock(x, yi, z, 143); //Coarse Dirt => Pat
chunk.SetMetadata(x, yi, z, 0); // Podzol => (Podzol)
}
}
}
}
}
NbtList entities = dataTag["Entities"] as NbtList;
NbtList blockEntities = dataTag["TileEntities"] as NbtList;
if (blockEntities != null)
{
foreach (var nbtTag in blockEntities)
{
var blockEntityTag = (NbtCompound)nbtTag.Clone();
string entityId = blockEntityTag["id"].StringValue;
int x = blockEntityTag["x"].IntValue;
int y = blockEntityTag["y"].IntValue - yoffset;
int z = blockEntityTag["z"].IntValue;
blockEntityTag["y"] = new NbtInt("y", y);
BlockEntity blockEntity = BlockEntityFactory.GetBlockEntityById(entityId);
if (blockEntity != null)
{
blockEntityTag.Name = string.Empty;
if (blockEntity is Sign)
{
// Remove the JSON stuff and get the text out of extra data.
// TAG_String("Text2"): "{"extra":["10c a loaf!"],"text":""}"
CleanSignText(blockEntityTag, "Text1");
CleanSignText(blockEntityTag, "Text2");
CleanSignText(blockEntityTag, "Text3");
CleanSignText(blockEntityTag, "Text4");
}
chunk.SetBlockEntity(new BlockCoordinates(x, y, z), blockEntityTag);
}
}
}
//NbtList tileTicks = dataTag["TileTicks"] as NbtList;
chunk.isDirty = false;
return(chunk);
}
}
public ChunkColumn GetChunk(ChunkCoordinates coordinates, string basePath, IWorldGenerator generator)
{
try
{
int width = 32;
int depth = 32;
int rx = coordinates.X >> 5;
int rz = coordinates.Z >> 5;
string filePath = Path.Combine(basePath, string.Format(@"region{2}r.{0}.{1}.mca", rx, rz, Path.DirectorySeparatorChar));
if (!File.Exists(filePath))
{
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
//chunkColumn.NeedSave = true;
}
return(chunkColumn);
}
using (var regionFile = File.OpenRead(filePath))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, 8192);
int xi = (coordinates.X % width);
if (xi < 0)
{
xi += 32;
}
int zi = (coordinates.Z % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
byte[] bytes = BitConverter.GetBytes(offset >> 4);
Array.Reverse(bytes);
if (offset != 0 && offsetBuffer[0] != bytes[0] && offsetBuffer[1] != bytes[1] && offsetBuffer[2] != bytes[2])
{
throw new Exception($"Not the same buffer\n{Package.HexDump(offsetBuffer)}\n{Package.HexDump(bytes)}");
}
int length = regionFile.ReadByte();
if (offset == 0 || length == 0)
{
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
//chunkColumn.NeedSave = true;
}
return(chunkColumn);
}
regionFile.Seek(offset, SeekOrigin.Begin);
byte[] waste = new byte[4];
regionFile.Read(waste, 0, 4);
int compressionMode = regionFile.ReadByte();
if (compressionMode != 0x02)
{
throw new Exception($"CX={coordinates.X}, CZ={coordinates.Z}, NBT wrong compression. Expected 0x02, got 0x{compressionMode:X2}. " +
$"Offset={offset}, length={length}\n{Package.HexDump(waste)}");
}
var nbt = new NbtFile();
nbt.LoadFromStream(regionFile, NbtCompression.ZLib);
NbtCompound dataTag = (NbtCompound)nbt.RootTag["Level"];
bool isPocketEdition = false;
if (dataTag.Contains("MCPE BID"))
{
isPocketEdition = dataTag["MCPE BID"].ByteValue == 1;
}
NbtList sections = dataTag["Sections"] as NbtList;
ChunkColumn chunk = new ChunkColumn
{
x = coordinates.X,
z = coordinates.Z,
biomeId = dataTag["Biomes"].ByteArrayValue,
isAllAir = true
};
if (chunk.biomeId.Length > 256)
{
throw new Exception();
}
NbtTag heights = dataTag["HeightMap"] as NbtIntArray;
if (heights != null)
{
int[] intHeights = heights.IntArrayValue;
for (int i = 0; i < 256; i++)
{
chunk.height[i] = (short)intHeights[i];
}
}
// This will turn into a full chunk column
foreach (NbtTag sectionTag in sections)
{
ReadSection(sectionTag, chunk, !isPocketEdition);
}
NbtList entities = dataTag["Entities"] as NbtList;
NbtList blockEntities = dataTag["TileEntities"] as NbtList;
if (blockEntities != null)
{
foreach (var nbtTag in blockEntities)
{
var blockEntityTag = (NbtCompound)nbtTag.Clone();
string entityId = blockEntityTag["id"].StringValue;
int x = blockEntityTag["x"].IntValue;
int y = blockEntityTag["y"].IntValue;
int z = blockEntityTag["z"].IntValue;
if (entityId.StartsWith("minecraft:"))
{
var id = entityId.Split(':')[1];
entityId = id.First().ToString().ToUpper() + id.Substring(1);
blockEntityTag["id"] = new NbtString("id", entityId);
}
BlockEntity blockEntity = BlockEntityFactory.GetBlockEntityById(entityId);
if (blockEntity != null)
{
blockEntityTag.Name = string.Empty;
if (blockEntity is Sign)
{
// Remove the JSON stuff and get the text out of extra data.
// TAG_String("Text2"): "{"extra":["10c a loaf!"],"text":""}"
CleanSignText(blockEntityTag, "Text1");
CleanSignText(blockEntityTag, "Text2");
CleanSignText(blockEntityTag, "Text3");
CleanSignText(blockEntityTag, "Text4");
}
else if (blockEntity is ChestBlockEntity)
{
NbtList items = (NbtList)blockEntityTag["Items"];
if (items != null)
{
//for (byte i = 0; i < items.Count; i++)
//{
// NbtCompound item = (NbtCompound) items[i];
// item.Add(new NbtShort("OriginalDamage", item["Damage"].ShortValue));
// byte metadata = (byte) (item["Damage"].ShortValue & 0xff);
// item.Remove("Damage");
// item.Add(new NbtByte("Damage", metadata));
//}
}
}
chunk.SetBlockEntity(new BlockCoordinates(x, y, z), blockEntityTag);
}
else
{
if (Log.IsDebugEnabled)
{
Log.Debug($"Loaded unknown block entity: {blockEntityTag}");
}
}
}
}
//NbtList tileTicks = dataTag["TileTicks"] as NbtList;
chunk.RecalcHeight();
chunk.isDirty = false;
chunk.NeedSave = false;
return(chunk);
}
}
catch (Exception e)
{
Log.Error($"Loading chunk {coordinates}", e);
var chunkColumn = generator?.GenerateChunkColumn(coordinates);
if (chunkColumn != null)
{
//chunkColumn.NeedSave = true;
}
return(chunkColumn);
}
}