[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 = 10;
    public bool IsLoop = true;
    public bool IsSetSnap = false;
    public string AtlasName = "";

    private Sprite[] sprites;
    private int curIndex = 0;
    private float curRate = 0;
    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 > 0)
        {
            if (curIndex < sprites.Length || IsLoop)
            {
                curIndex %= sprites.Length;
                curRate += Time.deltaTime;
                if (curRate > 1) curRate = 0;
                float tempRate = 1f / Framerate;
                if (tempRate < curRate)
                {
                    curRate = tempRate > 0 ? curRate - tempRate : 0;
                    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