Files
OpenRA/OpenRa.FileFormats/Map.cs
bob c20e404aa1 fixes alignment while reading from MIX
git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@1098 993157c7-ee19-0410-b2c4-bb4e9862e678
2007-07-05 09:35:31 +00:00

115 lines
2.6 KiB
C#

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace OpenRa.FileFormats
{
public class Map
{
public readonly string Title;
public readonly string Theater;
public readonly int XOffset;
public readonly int YOffset;
public readonly int Width;
public readonly int Height;
public readonly TileReference[ , ] MapTiles = new TileReference[ 128, 128 ];
public Map( IniFile file )
{
IniSection basic = file.GetSection( "Basic" );
Title = basic.GetValue( "Name", "(null)" );
IniSection map = file.GetSection( "Map" );
Theater = map.GetValue( "Theater", "TEMPERATE" );
XOffset = int.Parse( map.GetValue( "X", "0" ) );
YOffset = int.Parse( map.GetValue( "Y", "0" ) );
Width = int.Parse( map.GetValue( "Width", "0" ) );
Height = int.Parse( map.GetValue( "Height", "0" ) );
MemoryStream ms = ReadMapPack( file );
UnpackTileData( ms );
}
static MemoryStream ReadMapPack( IniFile file )
{
IniSection mapPackSection = file.GetSection( "MapPack" );
StringBuilder sb = new StringBuilder();
for( int i = 1 ; ; i++ )
{
string line = mapPackSection.GetValue( i.ToString(), null );
if( line == null )
break;
sb.Append( line.Trim() );
}
byte[] data = Convert.FromBase64String( sb.ToString() );
List<byte[]> chunks = new List<byte[]>();
BinaryReader reader = new BinaryReader( new MemoryStream( data ) );
try
{
while( true )
{
uint length = reader.ReadUInt32() & 0xdfffffff;
byte[] dest = new byte[ 8192 ];
byte[] src = reader.ReadBytes( (int)length );
int actualLength = Format80.DecodeInto( new MemoryStream( src ), dest );
chunks.Add( dest );
}
}
catch( EndOfStreamException ) { }
MemoryStream ms = new MemoryStream();
foreach( byte[] chunk in chunks )
ms.Write( chunk, 0, chunk.Length );
ms.Position = 0;
return ms;
}
static byte ReadByte( Stream s )
{
int ret = s.ReadByte();
if( ret == -1 )
throw new NotImplementedException();
return (byte)ret;
}
void UnpackTileData( MemoryStream ms )
{
for( int i = 0 ; i < 128 ; i++ )
{
for( int j = 0 ; j < 128 ; j++ )
{
MapTiles[ j, i ].tile = ReadByte( ms );
MapTiles[ j, i ].tile |= (ushort)( ReadByte( ms ) << 8 );
}
}
for( int i = 0 ; i < 128 ; i++ )
for( int j = 0 ; j < 128 ; j++ )
MapTiles[ j, i ].image = ReadByte( ms );
}
}
public struct TileReference
{
public ushort tile;
public byte image;
}
}