Render IPreRenderSelection independently of OG.

OpenRA.Game/Graphics/WorldRenderer.cs

@@ -78,6 +78,13 @@ namespace OpenRA.Graphics
 
 			terrainRenderer.Draw(this, Game.viewport);
 
+			foreach (var a in world.Selection.Actors)
+				if (!a.Destroyed)
+					foreach (var t in a.TraitsImplementing<IPreRenderSelection>())
+						t.RenderBeforeWorld(this, a);
+			
+			Game.Renderer.Flush();
+			
 			if (world.OrderGenerator != null)
 				world.OrderGenerator.RenderBeforeWorld(this, world);
 

OpenRA.Game/Orders/GenericSelectTarget.cs

@@ -66,19 +66,8 @@ namespace OpenRA.Orders
 		}
 
 		public virtual void Tick(World world) { }
-
-		public void RenderBeforeWorld(WorldRenderer wr, World world)
-		{
-			foreach (var a in world.Selection.Actors)
-				if (!a.Destroyed)
-					foreach (var t in a.TraitsImplementing<IPreRenderSelection>())
-						t.RenderBeforeWorld(wr, a);
-
-			Game.Renderer.Flush();
-		}
-
+		public void RenderBeforeWorld(WorldRenderer wr, World world) { }
 		public void RenderAfterWorld(WorldRenderer wr, World world) { }
-
 		public string GetCursor(World world, int2 xy, MouseInput mi) { return world.Map.IsInMap(xy) ? cursor : "generic-blocked"; }
 	}
 

OpenRA.Game/Orders/UnitOrderGenerator.cs

@@ -74,11 +74,6 @@ namespace OpenRA.Orders
                 return;
             }
 
-			foreach (var a in world.Selection.Actors)
-				if (!a.Destroyed)
-					foreach (var t in a.TraitsImplementing<IPreRenderSelection>())
-						t.RenderBeforeWorld( wr, a );
-
 			Game.Renderer.Flush();
 		}