unity3d之控制人物转向移动并播放动画

tip：transition 勾选Has Exit Time B动画播放完毕后就可以自己返回A不用代码控制。因为想做一个小人静止时 隔两秒会摆动小手的特效。

 附上代码参考：

using UnityEngine;
using System.Collections;

public class playeMove : MonoBehaviour
{

    public Animator PlayerAnimator;
    public const int HERO_UP = 0;
    public const int HERO_RIGHT = 1;
    public const int HERO_DOWN = 2;
    public const int HERO_LEFT = 3;
    float  FreakTime=3;
    //人物当前行走的方向状态  
    public int state = 0;
    //人物移动速度  
    public int moveSpeed =2;

    //初始化人物位置  
    public void Awake()
    {
        state = HERO_UP;
    }
    // Use this for initialization  
    void Start()
    {

    }

    // Update is called once per frame  
    void Update()
    {


        //获取控制的方向， 上下左右，   
        float KeyVertical = Input.GetAxis("Vertical");
        float KeyHorizontal = Input.GetAxis("Horizontal");
        //Debug.Log("keyVertical" + KeyVertical);
        //Debug.Log("keyHorizontal" + KeyHorizontal);
        if (KeyVertical <0)
        {
            setHeroState(HERO_DOWN);
        }
        else if (KeyVertical >0)
        {
            setHeroState(HERO_UP);
        }

        if (KeyHorizontal >0)
        {
            setHeroState(HERO_RIGHT);
        }
        else if (KeyHorizontal <0)
        {
            setHeroState(HERO_LEFT);
        }


        
        //得到正在播放的动画状态
        AnimatorStateInfo info = PlayerAnimator.GetCurrentAnimatorStateInfo(0);

        //如果没有按下方向键且状态不为walk时播放走路动画
        if (KeyVertical != 0 || KeyHorizontal != 0  && !info.IsName("Walk"))
        {
            PlayerAnimator.Play("Walk");
        }
        //否则如果按下方向键且状态为walk时播放静止动画  
        else if((KeyVertical == 0 && KeyHorizontal == 0 && info.IsName("Walk") ))
        {
            PlayerAnimator.Play("Idle");
        }

        //这里设定是玩家静止时隔2s会摆动一次
        if (KeyVertical == 0 && KeyHorizontal == 0)
        {
            //当玩家静止时，FreakTime才会计时
            if (info.IsName("Idle"))
            {   
                FreakTime -= Time.deltaTime;
                if (FreakTime <= 0)
                {
                    Debug.Log(FreakTime);
                    FreakTime = 2;
                    //FreakingOut设置为播放后自动退出到idle
                    PlayerAnimator.Play("FreakingOut ");
                }
            }
        }


    }
 
    
    void setHeroState(int newState)
    {
        //根据当前人物方向与上一次备份的方向计算出模型旋转的角度  
        int rotateValue = (newState - state) * 90;
        Vector3 transformValue = new Vector3();

        //播放行走动画  
     
        //模型移动的位置数值  
        switch (newState)
        {
            case HERO_UP:
                transformValue = Vector3.forward * Time.deltaTime;
                break;
            case HERO_DOWN:
                transformValue = (-Vector3.forward) * Time.deltaTime;
                break;
            case HERO_LEFT:
                transformValue = Vector3.left * Time.deltaTime;
                break;
            case HERO_RIGHT:
                transformValue = (-Vector3.left) * Time.deltaTime;
                break;
        }

        transform.Rotate(Vector3.up, rotateValue);
        //移动人物  
        transform.Translate(transformValue * moveSpeed, Space.World);
        state = newState;
    }
   
     
}