同学你好，就是在update里边添加上navmeshagent.nextPosition = transform.position就可以了，老师这边测试是没有问题的，可以看下，是2018.3版本的，但是代码跟工程实现是一样的：

链接：https://pan.baidu.com/s/1cF2f6n5yWx-L7u0zxAluDA
提取码：85oy

为啥加了Rigidbody后，机器人就跑不动了。移除后就能跑，但会穿墙，而且不会被门的触发器检测到。

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

public class Guard : MonoBehaviour
{
    public GameObject[] patrolPath;  //巡逻路径
    private NavMeshAgent agent;
    private Animator anim;
    private int targetDex = 0;

    // Start is called before the first frame update
    void Start()
    {
        agent = GetComponent<NavMeshAgent>();
        anim = GetComponent<Animator>();
        agent.updatePosition = false;
        agent.updateRotation = false;
    }
    // Update is called once per frame
    void Update()
    {
        GameObject targetObj = patrolPath[targetDex];
        if (targetObj != null && MoveTo(targetObj.transform.position))
        {
            targetDex++;
            targetDex %= patrolPath.Length;
        }
        if (targetObj == null)
            anim.SetFloat("speedZ", 0f, 0.3f, Time.deltaTime); 
    }

    bool MoveTo(Vector3 targetPos)
    {
        agent.destination = targetPos;
        if (!agent.pathPending && agent.remainingDistance < agent.radius + 0.2)
        {
            return true;
        }
        Vector3 nextPos = agent.nextPosition;
        nextPos.y = transform.position.y;
        Vector3 P = nextPos - transform.position;
        float signAngle = Vector3.SignedAngle(P, transform.forward, Vector3.up);
        float angleAbs = Mathf.Abs(signAngle);
        if (signAngle > 0) 
            transform.Rotate(new Vector3(0, -Time.deltaTime * 120, 0));//turn right
        else
            transform.Rotate(new Vector3(0, Time.deltaTime * 120, 0));   //turn left
   
        if (angleAbs < 90)
            anim.SetFloat("speedZ", 1.5f * Mathf.Cos(angleAbs), 2f, Time.deltaTime);
        else
            anim.SetFloat("speedZ", 0.6f, 0.2f, Time.deltaTime);

        if (P.magnitude > agent.radius)
            agent.nextPosition = (agent.nextPosition - 0.1f * P);
    
        return false;
    }

}

机器人导航，加进Rigidbody后，动画怎么会跑不动的