Unity物体碰撞，模拟游戏子弹射中人

//主动方必须有Rigidbody  发生碰撞的两个游戏对象必须有Collision  被动方对于Rigidbody可有不可无
    //参数是表示被动方
    void OnCollisionEnter(Collision col)
    ｛
        Debug.Log("开始碰撞"+col.collider.gameObject.name);
    ｝
    void OnCollisionStay(Collision col)
    ｛
        Debug.Log("持续碰撞中" + col.collider.gameObject.name);
    ｝
    void OnCollisionExit(Collision col)
    ｛
        Debug.Log("碰撞结束" + col.collider.gameObject.name);
    ｝
    //有刚体的不勾选is trigger,  被动方没有刚体，但是勾选IS Trigger
    void OnTriggerEnter(Collider other)
    ｛
        //模拟子弹打到人，打到后子弹和被打目标同时消失
        Debug.Log("触发器开始:" + other.gameObject.name);
        GameObject.Destroy(gameObject);
        Destroy(other.gameObject);
    ｝
    void OnTriggerStay(Collider other)
    ｛
        Debug.Log("触发器检测中:" + other.gameObject.name);
    ｝
    void OnTriggerExit(Collider other)
    ｛
        Debug.Log("触发器结束:" + other.gameObject.name);
    ｝