using UnityEngine;
using System.Collections;

public class EnemyAnimation : MonoBehaviour
{
    public float speedDampTime = 0.3f;
    public float anglarSpeedDampTime = 0.3f;
    private NavMeshAgent navAgent;
    private Animator anim;

    void Awake()
    {
        navAgent = this.GetComponent<NavMeshAgent>();
        anim = this.GetComponent<Animator>();
    }
    void Update()
    {
        if (navAgent.desiredVelocity == Vector3.zero)  
        {
            anim.SetFloat("Speed", 0, speedDampTime, Time.deltaTime);
            anim.SetFloat("AnglarSpeed", 0, anglarSpeedDampTime, Time.deltaTime);
            print("test");
        }
        else
        {
            float angle = Vector3.Angle(transform.forward, navAgent.desiredVelocity);  
            float angleRad = 0f;
            if (angle > 90)// 大于90度就进行旋转，小于90才走
            {
                anim.SetFloat("Speed", 0, speedDampTime, Time.deltaTime);
            }
            else
            {
                Vector3 progection = Vector3.Project(navAgent.desiredVelocity, transform.forward);
                anim.SetFloat("Speed", progection.magnitude, speedDampTime, Time.deltaTime);
            }
            angleRad = angle * Mathf.Deg2Rad; 
            Vector3 corssRes = Vector3.Cross(transform.forward, navAgent.desiredVelocity);
            if (corssRes.y < 0)
            {
                angleRad = -angleRad;
            }
            anim.SetFloat("AnglarSpeed", angleRad, anglarSpeedDampTime, Time.deltaTime);
        }
    }
}

如上代码，在untiy中也是没有报错的，机器人实际上就在第二点走不到第三个点，但是NavMeshAgent却正常，这时什么原因？