public void FireCannon()
{
CannonBall newBall = Instantiate(cannonBallPrefab, transform.position, transform.rotation);
newBall.setTimeToArm(30f);
newBall.setTimeToDetonate(cannonsController.CannonBallDistance);
Rigidbody rigidbody;
rigidbody = newBall.GetComponent <Rigidbody>();
rigidbody.AddForce(transform.up * cannonsController.CannonThrustForce * cannonsController.CannonsThrustMaxForce);
}