using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class DestroyObject : MonoBehaviour {

	public GameObject effectPrefab;
	public AudioClip effectSound;

	void OnCollisionEnter(Collision other){
		if (other.gameObject.tag == "Bullet" || other.gameObject.tag == "Rocket") {
			Destroy (other.gameObject);
			Destroy (gameObject);
			AudioSource.PlayClipAtPoint (effectSound, Camera.main.transform.position);

			// ★追加
			// （ポイント）「foreach」の意味と使い方を調べましょう！
			foreach(ContactPoint contactPoint in other.contacts){

				// ★修正
				// 着弾点をエフェクトの発生位置に指定する。
				GameObject effect = (GameObject)Instantiate (effectPrefab, contactPoint.point, Quaternion.identity);
				Destroy (effect, 1.0f);
			}
		}
	}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class DestroyObject2 : MonoBehaviour {

	public GameObject effectPrefab;
	public AudioClip effectSound;
	public AudioClip noDamageSound;

	void OnCollisionEnter(Collision other){

		if (other.gameObject.tag == "Rocket") {
			Destroy (other.gameObject);
			Destroy (gameObject);
			AudioSource.PlayClipAtPoint (effectSound, Camera.main.transform.position);

			// ★追加
			// （ポイント）「foreach」の意味と使い方を調べましょう！
			foreach(ContactPoint contactPoint in other.contacts){

				// ★修正
				// 着弾点をエフェクトの発生位置に指定する。
				GameObject effect = (GameObject)Instantiate (effectPrefab, contactPoint.point, Quaternion.identity);
				Destroy (effect, 1.0f);
			}

		} else if (other.gameObject.tag == "Bullet") {
			AudioSource.PlayClipAtPoint (noDamageSound, Camera.main.transform.position);
		}
	}
}