private void Update()
    {
        if (theTrackable.CurrentStatusInfo == lastStatus)
        {
            return;
        }
        if (theTrackable.CurrentStatusInfo == TrackableBehaviour.StatusInfo.NORMAL)
        {
            petController.LoadPetByTarget(parent, theTrackable.TrackableName);

            lastStatus = theTrackable.CurrentStatusInfo;
            HUD.SetActive(true);
        }
        else if (theTrackable.CurrentStatusInfo == TrackableBehaviour.StatusInfo.UNKNOWN)
        {
            petController.UnloadPetByTarget(theTrackable.TrackableName);

            lastStatus = theTrackable.CurrentStatusInfo;
            HUD.SetActive(false);
        }
    }