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

public class Invader : MonoBehaviour
{
    public GameObject explo; // 宣告一個名為explo的物件

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        gameObject.transform.position += new Vector3(0, -0.01f, 0);
    }

    void OnTriggerEnter2D(Collider2D col) //名為col的觸發事件
    {
        if (col.tag == "Ship" || col.tag == "Bullet") //如果碰撞的標籤是Ship或Bullet
        {
            Destroy(col.gameObject); //消滅被碰撞的物件
            Destroy(gameObject); //消滅物件本身

            Instantiate(explo, transform.position, transform.rotation); //在外星人的位置產生爆炸
            if (col.tag == "Ship")
            {
                Instantiate(explo, col.gameObject.transform.position, col.gameObject.transform.rotation);
                //在碰撞物件的位置產生爆炸，也就是在太空船的位置產生爆炸
            }
        }
    }
}