//动画片段

[System.Serializable]

public class Anim

{

    public AnimationClip idle;

    public AnimationClip runForward;

    public AnimationClip runBackward;

    public AnimationClip runRight;

    public AnimationClip runLeft;

}

public class PlayerCtrl : MonoBehaviour

{

    public Anim anim;

    public Animation _animation;

     void Start()

    {

        tr = GetComponent<Transform>();

        _animation = GetComponentInChildren<Animation>();

        //_animation.clip = anim.idle;

        //_animation.Play();

    }

   void Update()

    {

        h = Input.GetAxis("Horizontal");

        v = Input.GetAxis("Vertical");

        Vector3 moveDir = (Vector3.forward * v) + (Vector3.right * h);

        tr.Translate(moveDir.normalized * Time.deltaTime * moveSpeed, Space.Self);

        tr.Rotate(Vector3.up * Time.deltaTime * rotSpeed * Input.GetAxis("Mouse X"));

        if (v >= 0.1F)

        {

            _animation.CrossFade(anim.runForward.name, 0.3F);

        }

        else if (v <= -0.1F)

        {

            _animation.CrossFade(anim.runBackward.name, 0.3F);

        }

        else if (h >= 0.1F)

        {

            _animation.CrossFade(anim.runRight.name, 0.3F);

        }

        else if (h <= -0.1F)

        {

            _animation.CrossFade(anim.runLeft.name, 0.3F);

        }

        else

        {

            _animation.CrossFade(anim.idle.name, 0.3F);

        }

    }