Restructuring

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

@@ -0,0 +1,17 @@
+package se.urmo.game.util;
+
+public enum Direction {
+    RIGHT(1, 0),
+    LEFT(-1, 0),
+    DOWN(0, 1),
+    UP(0, -1),
+    NONE(0, 0);
+
+    public final int dx;
+    public final int dy;
+
+    Direction(int dx, int dy) {
+        this.dx = dx;
+        this.dy = dy;
+    }
+}