public void CheckCollisions(Player player, Bullet bulletObject)
        {
            if (DetectCollision(player)) //if and of the enemy and player have collided
            {
                ResetPosition();
                alive = false;
                player.ResetPosition();
                player.DecreaseLives();
                killedSound.Play(); //play the killed sound
            }

            if (DetectCollision(bulletObject)) //if enemy and bullet have collided
            {
                ResetPosition();
                alive = false;
                player.ChangeScore(10); //add 10 points to players score
                bulletObject.ResetPos();
                killedSound.Play();
            }
        }
 /// <summary>
 /// Calls the Player class' ResetPosition method.
 /// </summary>
 public void ResetPosition()
 {
     player.ResetPosition();
 }