/**
  * change Direction of all enemies presents in the game
  *
  * @param alien : alien which touch the well
  * @param nextGoal : the nextGoal for the MoveStrategy
  */
 private void enemyChangeDirection(Alien alien, int nextGoal) {
   ((Level) alien.getLevel()).getEnemiesArray().ReverseMoveStrategyForAll(nextGoal);
 }
 /**
  * rule when en enemy touch the player
  *
  * @param player
  * @param alien
  * @throws IllegalMoveException
  */
 public void moveBlockerRule(Player player, Alien alien) throws IllegalMoveException {
   alien.getLevel().end();
   throw new IllegalMoveException();
 }