no nonlocal shroud; beginning of Shroud trait; fog switch on shroud palette hack

OpenRA.Game/Traits/World/Shroud.cs

@@ -0,0 +1,54 @@
+#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 OpenRA.FileFormats;
+using System.Collections.Generic;
+
+namespace OpenRA.Traits
+{
+	class ShroudInfo : ITraitInfo
+	{
+		public object Create(Actor self) { return new Shroud(self, this); }
+	}
+
+	class Shroud
+	{
+		Map map;
+		int[,] visibleCells;
+
+		public Shroud(Actor self, ShroudInfo info)
+		{
+			map = self.World.Map;
+			visibleCells = new int[map.MapSize, map.MapSize];
+
+			self.World.ActorAdded += AddActor;
+			self.World.ActorRemoved += RemoveActor;
+		}
+
+		class ActorVisibility
+		{
+			int range;
+			int2[] vis;
+		}
+
+		void AddActor(Actor a) { }
+		void RemoveActor(Actor a) { }
+	}
+}