783 fixed -- mines are visible to spec and allies now

OpenRA.Mods.RA/InvisibleToEnemy.cs

@@ -0,0 +1,39 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Drawing;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	class InvisibleToEnemyInfo : TraitInfo<InvisibleToEnemy> { }
+
+	class InvisibleToEnemy : IRenderModifier, IVisibilityModifier, IRadarColorModifier
+	{
+		public bool IsVisible(Actor self)
+		{
+			return self.World.LocalPlayer == null || self.Owner == self.World.LocalPlayer;
+		}
+		
+		public Color RadarColorOverride(Actor self)
+		{
+			// todo: why is making this half-opaque conflated with hiding the actor from non-allies?
+			return Color.FromArgb(128, self.Owner.ColorRamp.GetColor(0));
+		}
+
+		static readonly Renderable[] Nothing = { };
+		public IEnumerable<Renderable> ModifyRender(Actor self, IEnumerable<Renderable> r)
+		{
+			return self.World.LocalPlayer == null || self.Owner.Stances[self.World.LocalPlayer] == Stance.Ally
+				? r : Nothing;
+		}
+	}
+}