Everything is now OpenRA, not OpenRa

OpenRA.FileFormats/Map.cs

@@ -0,0 +1,176 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
+ * This file is part of OpenRA.
+ * 
+ *  OpenRA is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  OpenRA is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with OpenRA.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace OpenRA.FileFormats
+{
+	public class Map
+	{
+		public readonly string Title;
+		public readonly string Theater;
+
+		public readonly int XOffset;
+		public readonly int YOffset;
+		public int2 Offset { get { return new int2( XOffset, YOffset ); } }
+
+		public readonly int Width;
+		public readonly int Height;
+		public int2 Size { get { return new int2(Width, Height); } }
+
+		public readonly TileReference[ , ] MapTiles = new TileReference[ 128, 128 ];
+		public readonly List<TreeReference> Trees = new List<TreeReference>();
+
+		public readonly IEnumerable<int2> SpawnPoints;
+
+		static string Truncate( string s, int maxLength )
+		{
+			return s.Length <= maxLength ? s : s.Substring(0,maxLength );
+		}
+
+		public string TileSuffix { get { return "." + Truncate(Theater, 3); } }
+
+		public Map(IniFile file)
+		{
+			for (int j = 0; j < 128; j++)
+				for (int i = 0; i < 128; i++)
+					MapTiles[i, j] = new TileReference();
+
+			IniSection basic = file.GetSection("Basic");
+			Title = basic.GetValue("Name", "(null)");
+
+			IniSection map = file.GetSection("Map");
+			Theater = Truncate(map.GetValue("Theater", "TEMPERATE"), 8);
+
+			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"));
+
+			UnpackTileData(ReadPackedSection(file.GetSection("MapPack")));
+			UnpackOverlayData(ReadPackedSection(file.GetSection("OverlayPack")));
+			ReadTrees(file);
+
+			SpawnPoints = file.GetSection("Waypoints")
+				.Select(kv => Pair.New(int.Parse(kv.Key), new int2(int.Parse(kv.Value) % 128, int.Parse(kv.Value) / 128)))
+				.Where(a => a.First < 8)
+				.Select(a => a.Second)
+				.ToArray();
+		}
+
+		static MemoryStream ReadPackedSection(IniSection mapPackSection)
+		{
+			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(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;
+		}
+
+		static ushort ReadWord(Stream s)
+		{
+			ushort ret = ReadByte(s);
+			ret |= (ushort)(ReadByte(s) << 8);
+
+			return ret;
+		}
+
+		void UnpackTileData( MemoryStream ms )
+		{
+			for( int i = 0 ; i < 128 ; i++ )
+				for( int j = 0 ; j < 128 ; j++ )
+					MapTiles[j, i].tile = ReadWord(ms);
+
+			for( int i = 0 ; i < 128 ; i++ )
+				for( int j = 0 ; j < 128 ; j++ )
+				{
+					MapTiles[j, i].image = (byte)ms.ReadByte();
+					if( MapTiles[ j, i ].tile == 0xff || MapTiles[ j, i ].tile == 0xffff )
+						MapTiles[ j, i ].image = (byte)( i % 4 + ( j % 4 ) * 4 );
+				}
+		}
+
+		void UnpackOverlayData( MemoryStream ms )
+		{
+			for( int i = 0 ; i < 128 ; i++ )
+				for( int j = 0 ; j < 128 ; j++ )
+					MapTiles[ j, i ].overlay = ReadByte( ms );
+		}
+
+		void ReadTrees( IniFile file )
+		{
+			IniSection terrain = file.GetSection( "TERRAIN", true );
+			if( terrain == null )
+				return;
+
+			foreach( KeyValuePair<string, string> kv in terrain )
+				Trees.Add( new TreeReference( int.Parse( kv.Key ), kv.Value ) );
+		}
+
+		public bool IsInMap(int x, int y)
+		{
+			return (x >= XOffset && y >= YOffset && x < XOffset + Width && y < YOffset + Height);
+		}
+	}
+}