Add some small changes.

src/GameLoop.java

@@ -11,21 +11,21 @@ import java.util.PrimitiveIterator;
  * in the while loop (update() and render()) should be 
  * long running! Both must execute very quickly, without 
  * any waiting and blocking!
- * 
+ *
  * Detailed discussion on different game loop design
  * patterns is available in the following link:
  *    http://gameprogrammingpatterns.com/game-loop.html
- * 
+ *
  * @author Seyed Mohammad Ghaffarian
  */
 public class GameLoop implements Runnable {
-	
+
 	/**
 	 * Frame Per Second.
 	 * Higher is better, but any value above 24 is fine.
 	 */
 	public static final int FPS = 30;
-	
+
 	private GameFrame canvas;
 	private GameState state;
 	//state for other player
@@ -35,7 +35,7 @@ public class GameLoop implements Runnable {
 	public GameLoop(GameFrame frame) {
 		canvas = frame;
 	}
-	
+
 	/**
 	 * This must be called before the game loop starts.
 	 */