git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@1080 993157c7-ee19-0410-b2c4-bb4e9862e678

OpenRa.FileFormats/Map.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using MapViewer;
+
+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() );
+			Console.WriteLine( "Format80 data: {0}", data.Length );
+
+			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 );
+					Console.WriteLine( "Chunk length: {0}", actualLength );
+				}
+			}
+			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[ i, j ].tile = ReadByte( ms );
+					MapTiles[ i, j ].tile |= (ushort)( ReadByte( ms ) << 8 );
+				}
+			}
+
+			for( int i = 0 ; i < 128 ; i++ )
+				for( int j = 0 ; j < 128 ; j++ )
+					MapTiles[ i, j ].image = ReadByte( ms );
+		}
+	}
+
+	public struct TileReference
+	{
+		public ushort tile;
+		public byte image;
+	}
+}