Ghost WIP

src/main/java/se/urmo/game/util/Direction.java

@@ -14,4 +14,14 @@ public enum Direction {
         this.dx = dx;
         this.dy = dy;
     }
+
+    public Direction opposite() {
+        switch (this) {
+            case RIGHT: return LEFT;
+            case LEFT:  return RIGHT;
+            case DOWN:  return UP;
+            case UP:    return DOWN;
+            default:    return NONE;
+        }
+    }
 }