/// <summary>
/// Enqueues a cannon ball to remove from the game.
/// </summary>
/// <param name="cannonBall">Cannon ball to remove from the world.</param>
public void RemoveCannonBall(CannonBall cannonBall)
{
cannonBallsToRemove.Enqueue(cannonBall);
}
/// <summary>
/// Returns the enemy to the resource pool.
/// </summary>
public static void GiveBack(CannonBall cannonBall)
{
cannonBall.Destroy();
CannonBallPool.GiveBack(cannonBall);
}