秘密潜入敌人AI

] xunluo;
public GameObject mPlayer;
public enum RobotStatus
{
Idle,
Patrol,
Follow,
Attack,

};
public RobotStatus status=RobotStatus.Patrol;
public int i=0;
public NavMeshAgent mAgent;
public Animator ani;
private float ttt=2;
// Use this for initialization
void Start () {
    mAgent = GetComponent<NavMeshAgent> ();
    ani = GetComponent<Animator> ();
    mPlayer = GameObject.FindGameObjectWithTag ("player");
}
void Xunluo(){
    mAgent.SetDestination (xunluo [i]);
    if (Vector3.Distance (transform.position, xunluo [i]) < 0.4f) 
    {
        ani.SetBool ("idle", true);
        i = Random.Range (0, 4);
        status = RobotStatus.Idle;
    }
}
// Update is called once per frame
void Update () {
    switch (status) {
    case RobotStatus.Patrol:
        Xunluo ();
        break;
    case RobotStatus.Idle:
        if (ttt > 0) {
            ttt -= Time.deltaTime;
        } else {
            ttt = 2;
            status = RobotStatus.Patrol;
            ani.SetBool ("idle", false);
        }
        break;
    case RobotStatus.Follow:
        break;
    case RobotStatus.Attack:
        break;
    }

}
}