diff --git a/OpenRA.Game/UiOverlay.cs b/OpenRA.Game/UiOverlay.cs
index 5e8865b42a..5a45c029a2 100644
--- a/OpenRA.Game/UiOverlay.cs
+++ b/OpenRA.Game/UiOverlay.cs
@@ -104,8 +104,7 @@ namespace OpenRA
 					if (dirs[d] != 0)
 						continue;
 
-					int2 cell = world.OffsetCell(topLeft, i, d);
-
+					int2 cell = topLeft + i * vecs[d];
 					if (world.IsCellBuildable(cell, bi.WaterBound ? UnitMovementType.Float : UnitMovementType.Wheel, null))
 						continue; // Cell is empty; continue search
 
diff --git a/OpenRA.Game/WorldUtils.cs b/OpenRA.Game/WorldUtils.cs
index a34cae41a8..dc6c55dd66 100755
--- a/OpenRA.Game/WorldUtils.cs
+++ b/OpenRA.Game/WorldUtils.cs
@@ -127,26 +127,6 @@ namespace OpenRA
 				.FirstOrDefault();
 		}
 		
-		public static int2 OffsetCell(this World world, int2 cell, int step, int dir)
-		{
-			switch (dir)
-			{
-				case 0:
-					cell.X += step;
-				break;
-				case 1:
-					cell.Y += step;
-				break;
-				case 2:
-					cell.X -= step;
-				break;
-				case 3:
-					cell.Y -= step;
-				break;
-			}
-			return cell;
-		}
-		
 		public static bool CanPlaceBuilding(this World world, string name, BuildingInfo building, int2 topLeft, Actor toIgnore)
 		{
 			var res = world.WorldActor.traits.Get<ResourceLayer>();