void OnTriggerEnter(Collider c) { if (c.GetComponent <Holdable>() != null) { holdable = c.GetComponent <Holdable>(); holdable.SetHighlightColor(); } else if (c.GetComponent <Button>() != null) { button = c.GetComponent <Button>(); } else if (c.transform.parent.parent.GetComponent <SliderScript>() != null) { slider = c.transform.parent.parent.GetComponent <SliderScript>(); } }