脚本控制序列帧图动画

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

public class CommonSpriteAnimation : MonoBehaviour {
    //精灵图片集合
    public Sprite[] sprites;
    //动画执行时间
    public float animTime = 1f;

    //精灵渲染器
    private SpriteRenderer renderer;
    //渲染图片位置
    private int rendererPosition;
    //渲染图片间隔
    private float rendererTimer;

    void Start () {
        //获得精灵图片渲染器对象
        renderer = GetComponent<SpriteRenderer> ();
    }

    /// <summary>
    /// 获得动画执行时间
    /// </summary>
    /// <returns>The animation time.</returns>
    public float getAnimationTime(){
        return animTime;
    }

    /// <summary>
    /// 执行动画
    /// </summary>
    public void startAnimation(){
        //验证对象合法性
        if(renderer == null || sprites == null || sprites.Length==0){
            return;
        }
        //初始化参数: 位置、间隔
        rendererPosition = 0;
        rendererTimer = animTime / sprites.Length;
        //开启协同执行动画
        StartCoroutine (doAnimation());
    }

    /// <summary>
    /// 执行动画：固定间隔，顺序渲染图片
    /// </summary>
    /// <returns>The animation.</returns>
    IEnumerator doAnimation(){
        while(rendererPosition < sprites.Length){
            renderer.sprite = sprites[rendererPosition];
            rendererPosition += 1;
            yield return new WaitForSecondsRealtime (rendererTimer);
        }
    }

    //  //测试动画
    //  float t = 2f;
    //  float t1 = 2f;
    //  void Update(){
    //      if(t1>t){
    //          t1 = 0;
    //          startAnimation ();
    //      }
    //      t1 += Time.deltaTime;
    //  }
}