Convert bridges to world coordinates.

OpenRA.Game/CPos.cs

@@ -43,6 +43,8 @@ namespace OpenRA
 		public int2 ToInt2() { return new int2(X, Y); }
 		public PPos ToPPos() { return new PPos(Game.CellSize * X, Game.CellSize * Y); }
 
+		public WPos CenterPosition { get { return new WPos(1024*X + 512, 1024*Y + 512, 0); } }
+
 		public CPos Clamp(Rectangle r)
 		{
 			return new CPos(Math.Min(r.Right, Math.Max(X, r.Left)),

OpenRA.Mods.RA/Bridge.cs

@@ -151,7 +151,7 @@ namespace OpenRA.Mods.RA
 			}
 
 			foreach (var t in TileSprites[currentTemplate])
-				yield return new SpriteRenderable(t.Value, Traits.Util.CenterOfCell(t.Key).ToFloat2(), terrainPalette, Game.CellSize * t.Key.Y);
+				yield return new SpriteRenderable(t.Value, t.Key.CenterPosition, 0, terrainPalette, 1f);
 		}
 
 		void KillUnitsOnBridge()