Adventure creator optimisation

using UnityEngine;
using System.Collections;
using AC;
public class RSL_TurnNPCoffWhenInvisible : MonoBehaviour {


	bool showWorkings=false; //so we can verify if its working, DEBUG only

	//works but needs to be on something with a renderer i think
	void OnBecameVisible() {
		if (showWorkings)
		{
			Debug.Log ("..OnBecameVisible "+name);
		}


		if (NPCcomponent==null)
		{
			Debug.Log("OnBecameInvisible-->NPCcomponent is null cant flag it as offscreen! "+name);
			return;
		}
		//now we get the npc so we can tell it that its offscreen
		NPCcomponent.isOffScreen=false;
	}
	void OnBecameInvisible() {
		if (showWorkings)
		{
			Debug.Log ("..OnBecameInvisible "+name);
		}

		if (NPCcomponent==null)
		{
			Debug.Log("OnBecameInvisible-->NPCcomponent is null cant flag it as offscreen! "+name);
			return;
		}
		//now we get the npc so we can tell it that its offscreen
		NPCcomponent.isOffScreen=true;

	}

	NPC NPCcomponent;

	// Use this for initialization
	void Start () {

		GameObject npc 	= transform.parent.gameObject;
		NPCcomponent 	= npc.GetComponent<NPC>();
	}

	// Update is called once per frame
	void Update ()
	{

	}
}