Some parts of some buildings are pathable.

- not handling WEAP/FIX yet; that's special-case logic.

OpenRa.Game/MainWindow.cs

@@ -95,10 +95,10 @@ namespace OpenRa.Game
                 Button = e.Button,
                 Event = MouseInputEvent.Move,
                 Location = new int2(e.Location)
-            });
-
-			if (game.controller.orderGenerator != null)
-				game.controller.orderGenerator.PrepareOverlay(game,
+            });
+
+			if (game.controller.orderGenerator != null)
+				game.controller.orderGenerator.PrepareOverlay(game,
 					((1 / 24f) * (new float2(e.Location) + game.viewport.Location)).ToInt2());
 		}