public double getEnemyMovementDirection() {
   return Util.angleBetween2Points(
       this.enemyX, this.enemyY, this.previousEnemyX, this.previousEnemyX);
 }
 public double getDistanceToEnemy() {
   return Util.distanceBetween2Points(
       this.getX(), this.getY(), this.getEnemyX(), this.getEnemyY());
 }