public static Map Load(string filename)
{
StreamReader RawReader = new StreamReader(filename);
GZipStream Reader = new GZipStream(RawReader.BaseStream, CompressionMode.Decompress);
BinaryTag Tree = NbtParser.ParseTagStream(Reader);
Reader.Close();
RawReader.Close();
BinaryTag MapTag = new BinaryTag(){ Payload = null, };
// Find the MapTag data.
foreach (var Item in (BinaryTag[])Tree.Payload)
{
if (Item.Name == "Map")
{
MapTag = Item;
break;
}
}
if (!(MapTag.Payload is BinaryTag[]))
throw new IOException("Map tree did not or contained invalid Map tag!");
BinaryTag[] Items = MapTag.Payload as BinaryTag[];
Map MapInProgress = new Map();
foreach (var Item in Items)
{
switch (Item.Name)
{
case "Width":
MapInProgress.xdim = (short)Item.Payload;
break;
case "Height":
MapInProgress.ydim = (short) Item.Payload;
break;
case "Length":
MapInProgress.zdim = (short)Item.Payload;
break;
case "Blocks":
MapInProgress.CopyBlocks((byte[])Item.Payload, 0);
break;
case "Spawn":
BinaryTag[] List = (BinaryTag[]) Item.Payload;
short x = (short) List[0].Payload;
short y = (short)List[1].Payload;
short z = (short)List[2].Payload;
x *= 32;
y *= 32;
z *= 32;
MapInProgress.SetSpawn(new Position(x, y, z), 0);
break;
default:
break;
}
}
// We do our own optimizations.
MapInProgress.ReplaceAll(Block.StillWater, Block.Water, -1);
MapInProgress.ReplaceAll(Block.StillLava, Block.Lava, -1);
return MapInProgress;
}
public static Map Load(string fileName)
{
Spacecraft.Log("Converting " + fileName);
byte[] temp = new byte[8];
Map map = new Map();
byte[] data;
int length;
try {
using(FileStream stream = File.OpenRead(fileName)) {
stream.Seek(-4, SeekOrigin.End);
stream.Read(temp, 0, sizeof(int));
stream.Seek(0, SeekOrigin.Begin);
length = BitConverter.ToInt32(temp, 0);
data = new byte[length];
using( GZipStream reader = new GZipStream(stream, CompressionMode.Decompress)) {
reader.Read(data, 0, length);
}
}
//if( data[0] == 0xBE && data[1] == 0xEE && data[2] == 0xEF ) {
for( int i = 0; i < length - 1; i++ ) {
if( data[i] == 0xAC && data[i + 1] == 0xED ) {
// bypassing the header crap
int pointer = i + 6;
Array.Copy( data, pointer, temp, 0, sizeof( short ) );
pointer += IPAddress.HostToNetworkOrder( BitConverter.ToInt16( temp, 0 ) );
pointer += 13;
int headerEnd = 0;
// find the end of serialization listing
for( headerEnd = pointer; headerEnd < data.Length - 1; headerEnd++ ) {
if( data[headerEnd] == 0x78 && data[headerEnd + 1] == 0x70 ) {
headerEnd += 2;
break;
}
}
// start parsing serialization listing
int offset = 0;
while( pointer < headerEnd ) {
if( data[pointer] == 'Z' ) offset++;
else if( data[pointer] == 'I' || data[pointer] == 'F' ) offset += 4;
else if( data[pointer] == 'J' ) offset += 8;
pointer += 1;
Array.Copy( data, pointer, temp, 0, sizeof( short ) );
short skip = IPAddress.HostToNetworkOrder( BitConverter.ToInt16( temp, 0 ) );
pointer += 2;
// look for relevant variables
Array.Copy( data, headerEnd + offset - 4, temp, 0, sizeof( int ) );
if( MemCmp( data, pointer, "width" ) ) {
map.xdim = (short)IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) );
} else if( MemCmp( data, pointer, "depth" ) ) {
map.ydim = (short)IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) );
} else if( MemCmp( data, pointer, "height" ) ) {
map.zdim = (short)IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) );
} else if( MemCmp( data, pointer, "xSpawn" ) ) {
map.spawn.x = (short)(IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) )*32+16);
} else if( MemCmp( data, pointer, "ySpawn" ) ) {
map.spawn.y = (short)(IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) ) * 32 + 16);
} else if( MemCmp( data, pointer, "zSpawn" ) ) {
map.spawn.z = (short)(IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) ) * 32 + 16);
}
pointer += skip;
}
// find the start of the block array
bool foundBlockArray = false;
offset = Array.IndexOf<byte>( data, 0x00, headerEnd );
while( offset != -1 && offset < data.Length - 2 ) {
if( data[offset] == 0x00 && data[offset + 1] == 0x78 && data[offset + 2] == 0x70 ) {
foundBlockArray = true;
pointer = offset + 7;
}
offset = Array.IndexOf<byte>( data, 0x00, offset + 1 );
}
// copy the block array... or fail
if( foundBlockArray ) {
map.CopyBlocks( data, pointer );
if( !map.ValidateBlockTypes() ) {
throw new Exception( "Map validation failed: unknown block types found. Either parsing has done wrong, or this is an incompatible format." );
}
} else {
throw new Exception( "Could not locate block array." );
}
break;
}
}
} catch( Exception ex ) {
Spacecraft.LogError("Conversion failed", ex);
return null;
}
// replace all still fluids with their normal equivalents
// vanilla server does optimizations that make most fluids still when nothing is happening nearby
map.ReplaceAll(Block.StillLava, Block.Lava, map.Length);
map.ReplaceAll(Block.StillWater, Block.Water, map.Length);
map.Save(Map.levelName);
Spacecraft.Log("Conversion completed succesfully");
return map;
}