[Unity UGUI序列帧]简单实现序列帧的播放

在使用序列帧之前需要准备好序列帧的图集，打图集的操作参考

[Unity UGUI图集系统]浅谈UGUI图集使用

准备好序列帧图集，序列帧的播放原理就是获取到图集中的所有图片，然后按照设置的速度按个赋值给Image，其余的都可以按照自己的需求加一些循环，是否设置原图大小等等功能

 using System.Collections;

 using System.Collections.Generic;

 using UnityEngine;

 using UnityEngine.UI;

 public class UIImagAnimation : MonoBehaviour

 {

     public int Framerate = ;

     public bool IsLoop = true;

     public bool IsSetSnap = false;

     public string AtlasName = "";

     private Sprite[] sprites;

     private int curIndex = ;

     private float curRate = ;

     private Image mImage;

     // Start is called before the first frame update

     void Start()

     {

         if (mImage == null) mImage = GetComponent<Image>();

         if (sprites == null) sprites = UIResourceLoadManager.Instance.LoadSprites(AtlasName, sprites);

     }

     // Update is called once per frame

     void Update()

     {

         if (mImage != null && sprites != null && sprites.Length > )

         {

             if (curIndex < sprites.Length || IsLoop)

             {

                 curIndex %= sprites.Length;

                 curRate += Time.deltaTime;

                 if (curRate > ) curRate = ;

                 float tempRate = 1f / Framerate;

                 if (tempRate < curRate)

                 {

                     curRate = tempRate >  ? curRate - tempRate : ;

                     mImage.sprite = sprites[curIndex];

                     if (IsSetSnap) mImage.SetNativeSize();

                     curIndex++;

                 }

             }

         }

     }

 }

根据自己的需求设置好参数，一个简单的UGUI下的序列帧播放功能就实现了