gistfile1.txt

using UnityEngine;
using System.Collections;

public class Switch : MonoBehaviour {

	public AudioClip audioClip1;

	// Use this for initialization
	void Start () {

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

	}
	
	void OnCollisionEnter2D(Collision2D col){
		if(col.gameObject.tag == "switch"){
			audio.PlayOneShot (audioClip1);
			Destroy(col.gameObject);
			Destroy(GameObject.Find("block_0"));
		}
	}
}