renamed OverlayRenderer to SmudgeRenderer. it has nothing to do with overlay anymore.

OpenRA.Game/Graphics/SmudgeRenderer.cs

@@ -0,0 +1,68 @@
+#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.Linq;
+using OpenRA.FileFormats;
+
+namespace OpenRA.Graphics
+{
+	class SmudgeRenderer
+	{
+		static string[] smudgeSpriteNames =
+			{ 
+				"bib3", "bib2", "bib1", "sc1", "sc2", "sc3", "sc4", "sc5", "sc6",
+				"cr1", "cr2", "cr3", "cr4", "cr5", "cr6", 
+			};
+
+		readonly Sprite[] smudgeSprites;
+
+		SpriteRenderer spriteRenderer;
+		Map map;
+
+		public SmudgeRenderer( Renderer renderer, Map map )
+		{
+			this.spriteRenderer = new SpriteRenderer( renderer, true );
+			this.map = map;
+
+			smudgeSprites = smudgeSpriteNames.SelectMany(f => SpriteSheetBuilder.LoadAllSprites(f)).ToArray();
+		}
+
+		public void Draw()
+		{
+			var shroud = Game.world.LocalPlayer.Shroud;
+
+			for (int y = map.YOffset; y < map.YOffset + map.Height; y++)
+				for (int x = map.XOffset; x < map.XOffset + map.Width; x++)
+				{
+					if (!shroud.IsExplored(new int2(x,y))) continue;
+
+					var tr = map.MapTiles[x,y];
+					if (tr.smudge != 0 && tr.smudge <= smudgeSprites.Length)
+					{
+						var location = new int2(x, y);
+						spriteRenderer.DrawSprite(smudgeSprites[tr.smudge - 1],
+							Game.CellSize * (float2)location, "terrain");
+					}
+				}
+
+			spriteRenderer.Flush();
+		}
+	}
+}