Unity2D游戏敌人AI

1. 只会朝一个方向移动，并且到一定的距离就自动削除了的敌人脚本，可以用作子弹脚本

   public float moveSpeed = 6f;
   public float moveAngelMax = 0f; //可以给敌人设置随机的移动角度
   public float moveAngelMin = 0f; 
   public Transform destransform; //自我销毁的位置
   
   private Rigidbody2D rb2d;
   private float moveAngel;
   
   void Start()
   {
       rb2d = GetComponent<Rigidbody2D>();
       moveAngel = Random.Range(moveAngelMin, moveAngelMax);
   }
   
   void Update()
   {
       rb2d.velocity = new Vector2(-moveSpeed, moveAngel );
       if (gameObject.transform.position.x <= -destransform.position.x)
       {
           Destroy(gameObject);
       }
   }

2. 在两个点之间来回移动并且可以随着时间释放2种类型的子弹的的敌人功能实现函数

以下是伪代码

    private void MovingUpDown()//这个函数被用于Update中
{
    if (gameObject.transform.position.y < up.position.y && isMove == true)
    {
        rb2D.velocity = new Vector2(0, movingSpeed);
    }
    if (gameObject.transform.position.y >= up.position.y && isMove == true)
    {
        rb2D.velocity = Vector2.zero;
        isMove = false;
    }
    if (gameObject.transform.position.y > down.position.y && isMove == false)
    {
        rb2D.velocity = new Vector2(0, -movingSpeed);
    }
    if (gameObject.transform.position.y <= down.position.y && isMove == false)
    {
        rb2D.velocity = Vector2.zero;
        isMove = true;
    }
}

private void Battle()
{
    if (Time.fixedTime - time1 > bullet1Speed)
    {
        time1 = Time.fixedTime;
        Instantiate(bullet1, gameObject.transform.position, Quaternion.identity);
    }
    if (Time.fixedTime - time2 > bullet2Speed)
    {
        time2 = Time.fixedTime;
        Instantiate(bullet2, gameObject.transform.position, Quaternion.identity);
    }
}