void OnCollisionEnter(Collision collision) { if (collision.gameObject.name.StartsWith("Marble")) { GetComponent <AudioSource>().Play(); PivotArm?.DoBounce(); //HelperFunctions.Log("hit", DateTime.Now - lastHitTime); //lastHitTime = DateTime.Now; } else { HelperFunctions.Log("wrong obj: " + collision.gameObject.name); } }