protected override void OnTriggerExit(Collider hit)
 {
     if (hit.CompareTag(GlobalUtilities.LOCAL_PLAYER_TAG))
     {
         GlobalUtilities.ClearWarningText();
     }
 }
        protected override void OnTriggerExit(Collider hit)
        {
            HealthSystem health = hit.gameObject.GetComponent <HealthSystem> ();

            if (health != null)
            {
                this._healthSystems.Remove(hit.GetComponent <BaseGameObject>().GetGameObjectName());
                if (hit.CompareTag(GlobalUtilities.LOCAL_PLAYER_TAG))
                {
                    GlobalUtilities.ClearWarningText();
                }
            }
        }