public static Level Load(Stream lvlStream, string fileName)
{
byte[] temp = new byte[8];
Level lvl = new Level(fileName, 0, 0, 0, "empty");
byte[] data;
int length;
try {
lvlStream.Seek( -4, SeekOrigin.End );
lvlStream.Read( temp, 0, sizeof( int ) );
lvlStream.Seek( 0, SeekOrigin.Begin );
length = BitConverter.ToInt32( temp, 0 );
data = new byte[length];
using( GZipStream reader = new GZipStream( lvlStream, CompressionMode.Decompress, true ) ) {
reader.Read( data, 0, length );
}
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" ) ) {
lvl.width = (ushort)IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) );
} else if( MemCmp( data, pointer, "depth" ) ) {
lvl.depth = (ushort)IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) );
} else if( MemCmp( data, pointer, "height" ) ) {
lvl.height = (ushort)IPAddress.HostToNetworkOrder( BitConverter.ToInt32( temp, 0 ) );
}
pointer += skip;
}
lvl.spawnx = (ushort)(lvl.width / 1.3);
lvl.spawny = (ushort)(lvl.depth / 1.3);
lvl.spawnz = (ushort)(lvl.height / 1.3);
// 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 ) {
lvl.CopyBlocks( data, pointer );
lvl.Save(true);
} else {
throw new Exception( "Could not locate block array." );
}
break;
}
}
} catch( Exception ex ) {
Server.s.Log("Conversion failed");
Server.ErrorLog(ex);
return null;
}
return lvl;
}
