// ---
private void OnCollisionEnter(Collision collision)
{
IHittable hittable = collision.gameObject.GetComponent <IHittable>();
if (hittable != null && isProjectile)
{
float hitForce = rb.velocity.magnitude;
Vector3 hitDirection = Vector3.Normalize(rb.velocity);
hittable.ApplyHitForce(hitDirection, hitForce, orbitTarget.name);
}
}
