git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@2049 993157c7-ee19-0410-b2c4-bb4e9862e678

OpenRa.Game/Graphics/TreeCache.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using OpenRa.FileFormats;
+
+namespace OpenRa.Game.Graphics
+{
+	class TreeCache
+	{
+		Dictionary<string, Sprite> trees = new Dictionary<string, Sprite>();
+
+		public TreeCache(Map map)
+		{
+			foreach (TreeReference r in map.Trees)
+			{
+				if (trees.ContainsKey(r.Image))
+					continue;
+
+				string filename = r.Image + "." + map.Theater.Substring(0, 3);
+
+				ShpReader reader = new ShpReader( FileSystem.Open( filename ) );
+				trees.Add(r.Image, SheetBuilder.Add(reader[0].Image, reader.Size));
+			}
+		}
+
+		public Sprite GetImage(string tree) { return trees[tree]; }
+	}
+}