305 lines
9.7 KiB
C#
305 lines
9.7 KiB
C#
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using UnityEngine;
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using UnityEngine.UI;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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namespace GeneralTools
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{
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/// <summary>
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/// 序列帧动画播放器
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/// 支持UGUI的Image和Unity2D的SpriteRenderer
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/// </summary>
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public class FramesAnimator : MonoBehaviour
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{
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//目标Image组件
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private RawImage image;
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private List<FramesAttribute> framesList;
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/// <summary>
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/// 全部结束事件
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/// </summary>
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public event Action OnAllFinishEvent;
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//是否允许播放
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private bool isAllowPlay = true;
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//当前帧索引
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private int currentFrameIndex = 0;
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//当前动画序号索引
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private int currentAnimationIndex = 0;
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//下一次更新时间
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private float timer = 0.0f;
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public FramesAnimator Init(List<FramesAttribute> frameAttritubes)
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{
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Stop();
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image = GetComponent<RawImage>();
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if (image == null)
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{
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Debug.LogError("未找到RawImage", gameObject);
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}
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framesList = frameAttritubes;
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OnAllFinishEvent = null;
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return this;
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}
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public FramesAnimator Init(params List<Texture>[] texArr)
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{
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List<FramesAttribute> temp = new List<FramesAttribute>();
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for (int i = 0; i < texArr.Length; i++)
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{
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FramesAttribute newFM = new FramesAttribute(texArr[i], i == texArr.Length - 1);
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temp.Add(newFM);
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}
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return Init(temp);
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}
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public FramesAnimator Init(List<List<Texture>> texList, List<bool> loopList, List<Action> finishEventList = null)
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{
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List<FramesAttribute> temp = new List<FramesAttribute>();
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if (finishEventList == null)
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finishEventList = new List<Action>();
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for (int i = 0; i < texList.Count; i++)
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{
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bool il = i < loopList.Count ? loopList[i] : false;
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FramesAttribute newFM = new FramesAttribute(texList[i], il);
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newFM.OnFinishEvent += i < finishEventList.Count ? finishEventList[i] : null;
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temp.Add(newFM);
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}
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return Init(temp);
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}
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public void Play()
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{
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isAllowPlay = true;
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gameObject.SetActive(true);
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}
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public void Pause()
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{
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isAllowPlay = false;
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}
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public void Stop()
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{
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isAllowPlay = false;
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ResetIndex();
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}
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public void Hide()
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{
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Stop();
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gameObject.SetActive(false);
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}
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public void RePlay()
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{
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isAllowPlay = false;
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ResetIndex();
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if (framesList.Count > 0)
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{
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if (framesList[0].framesList.Count > 0)
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{
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image.texture = framesList[0].framesList[currentFrameIndex];
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}
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}
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Play();
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}
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public void PlayIndex(int index)
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{
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if (framesList == null)
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return;
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if (index < 0 || index >= framesList.Count)
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return;
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isAllowPlay = false;
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currentAnimationIndex = index;
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currentFrameIndex = framesList[currentAnimationIndex].framerate > 0 ? 0 : framesList[currentAnimationIndex].framesList.Count - 1;
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if (framesList[currentAnimationIndex].framesList.Count > 0)
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{
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image.texture = framesList[currentAnimationIndex].framesList[currentFrameIndex];
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}
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Play();
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}
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/// <summary>
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/// 改变一个索引的临时loop
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/// </summary>
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public void SetLoopOfIndex(int index, bool loop)
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{
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if (index >= 0 && index < framesList.Count)
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{
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framesList[index].loop = loop;
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}
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}
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/// <summary>
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/// 改变一个索引的永久loop
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/// </summary>
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public void SetLoopOfIndexForever(int index, bool loop)
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{
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if (index >= 0 && index < framesList.Count)
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{
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framesList[index].InitialLoop = loop;
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}
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}
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/// <summary>
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/// 获得当前动画索引
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/// </summary>
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public int GetCurrentAnimationIndex()
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{
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return currentAnimationIndex;
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}
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/// <summary>
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/// 改变当前索引的临时loop
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/// </summary>
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public void SetCurrentAnimationLoop(bool loop)
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{
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SetLoopOfIndex(currentAnimationIndex, loop);
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}
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/// <summary>
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/// 动画全部设置为不循环，播放完销毁自身
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/// </summary>
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public void GoDestroy()
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{
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for (int i = 0; i < framesList.Count; i++)
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{
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SetLoopOfIndexForever(i, false);
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}
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OnAllFinishEvent += () =>
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{
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Destroy(gameObject);
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};
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}
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/// <summary>
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/// 重设动画索引
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/// </summary>
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private int ResetIndex()
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{
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currentAnimationIndex = 0;
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//重置Loop
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if (framesList != null)
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{
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for (int i = 0; i < framesList.Count; i++)
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{
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framesList[i].ReSetLoop();
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}
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currentFrameIndex = framesList[currentAnimationIndex].framerate > 0 ? 0 : framesList[currentAnimationIndex].framesList.Count - 1;
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}
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return currentFrameIndex;
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}
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void FixedUpdate()
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{
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if (framesList == null || framesList.Count == 0 || image == null)
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{
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return;
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}
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else
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{
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//是否允许播放
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if (!isAllowPlay) return;
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PlayOneFrame(framesList[currentAnimationIndex]);
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}
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}
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private void PlayOneFrame(FramesAttribute fm)
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{
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if (fm == null || fm.framesList.Count == 0 || fm.framerate == 0)
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{
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return;
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}
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//获取当前时间
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float time = fm.ignoreTimeScale ? Time.unscaledTime : Time.time;
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//计算帧间隔时间
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float interval = Mathf.Abs(1.0f / fm.framerate);
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//满足更新条件，执行更新操作
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if (time - timer > interval)
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{
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//执行更新操作
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DoUpdate(fm);
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}
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}
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//具体更新操作
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private void DoUpdate(FramesAttribute fm)
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{
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//计算新的索引
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int nextIndex = currentFrameIndex + (fm.framerate > 0 ? 1 : -1);
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//索引越界，表示已经到结束帧
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if (nextIndex < 0 || nextIndex >= fm.framesList.Count)
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{
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nextIndex = 0;
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//不循环，整体动画索引+1
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if (fm.loop == false)
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{
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//播放结束事件
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fm.OnFinish();
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currentAnimationIndex += 1;
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if (currentAnimationIndex >= framesList.Count)
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{
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//全部播放完毕，帧索引不归零
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isAllowPlay = false;
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OnAllFinishEvent?.Invoke();
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currentAnimationIndex = framesList.Count - 1;
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nextIndex = fm.framesList.Count - 1;
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}
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else
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{
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//未结束，指向下一个动画，帧索引归零
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fm = framesList[currentAnimationIndex];
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nextIndex = fm.framerate > 0 ? 0 : fm.framesList.Count - 1;
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}
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}
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else
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{
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//循环，帧索引归零
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nextIndex = fm.framerate > 0 ? 0 : fm.framesList.Count - 1;
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}
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}
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//钳制索引
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currentFrameIndex = Mathf.Clamp(nextIndex, 0, fm.framesList.Count - 1);
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//更新图片
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RefreshTexture(fm, currentFrameIndex);
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//设置计时器为当前时间
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timer = fm.ignoreTimeScale ? Time.unscaledTime : Time.time;
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}
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private void RefreshTexture(FramesAttribute fm, int index)
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{
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image.texture = fm.framesList[index];
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}
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public void ManualUpdatePositive()
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{
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FramesAttribute fm = framesList[currentAnimationIndex];
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DoUpdate(fm);
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}
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//反向手动刷新
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public void ManualUpdateReverse()
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{
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FramesAttribute fm = framesList[currentAnimationIndex];
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fm.framerate *= -1;
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DoUpdate(fm);
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fm.framerate *= -1;
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}
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}
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public class FramesAttribute
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{
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public List<Texture> framesList;
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public bool loop;
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public bool InitialLoop { get { return initialLoop; } set { loop = value; initialLoop = value; } }
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private bool initialLoop;
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public event Action OnFinishEvent;
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public float framerate = 24.0f;
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public bool ignoreTimeScale = true;
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public FramesAttribute()
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{
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}
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public FramesAttribute(List<Texture> _framesList, bool _loop)
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{
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framesList = _framesList;
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InitialLoop = _loop;
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OnFinishEvent = null;
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}
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public void ReSetLoop()
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{
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InitialLoop = InitialLoop;
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}
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public void OnFinish()
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{
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OnFinishEvent?.Invoke();
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}
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}
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}
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