代码

using UnityEngine;using System.Collections;using System.Collections.Generic;using UnityEngine.UI;using System;[RequireComponent(typeof(Image))]public class UGUISpriteAnimation : MonoBehaviour{	private Image ImageSource;	private int mCurFrame = 0;	private float mDelta = 0;	public float FPS = 5;	public List
     
       SpriteFrames;	public bool IsPlaying = false;	public bool Foward = true;	public bool AutoPlay = false;	public bool Loop = false;	public int FrameCount	{		get		{			return SpriteFrames.Count;		}	}	void Awake()	{		ImageSource = GetComponent
      ();	}	void Start()	{		if (AutoPlay)		{			Play();		}		else		{			IsPlaying = false;		}	}	private void SetSprite(int idx)	{		ImageSource.sprite = SpriteFrames[idx];		ImageSource.SetNativeSize();	}	public void Play()	{		IsPlaying = true;		Foward = true;	}	public void PlayReverse()	{		IsPlaying = true;		Foward = false;	}	void Update()	{		if (!IsPlaying || 0 == FrameCount)		{			return;		}		mDelta += Time.deltaTime;		if (mDelta > 1 / FPS)		{			mDelta = 0;			if(Foward)			{				mCurFrame++;			}			else			{				mCurFrame--;			}			if (mCurFrame >= FrameCount)			{				if (Loop)				{					mCurFrame = 0;				}				else				{					IsPlaying = false;					return;				}			}			else if (mCurFrame<0)			{				if (Loop)				{					mCurFrame = FrameCount-1;				}				else				{					IsPlaying = false;					return;				}						}						SetSprite(mCurFrame);		}	}	public void Pause()	{		IsPlaying = false;	}	public void Resume()	{		if (!IsPlaying)		{			IsPlaying = true;		}	}	public void Stop()	{		mCurFrame = 0;		SetSprite(mCurFrame);		IsPlaying = false;	}	public void Rewind()	{		mCurFrame = 0;		SetSprite(mCurFrame);		Play();	}}