194 lines
5.1 KiB
C#
194 lines
5.1 KiB
C#
using Thousandto.Code.Center;
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using Thousandto.Plugins.Common;
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using System;
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using System.Collections.Generic;
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using System.Text;
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using UnityEngine;
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namespace Thousandto.GameUI.Form
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{
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/// <summary>
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/// 直接为UISprite的对象上挂接这个脚本
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/// 挂上后，sprite会有帧动画显示（如果name可以连续读取)
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/// sprite在atlas中的名字必须是如下格式： name_index （sprite_0 sprite_1 sprite_2 ...)
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/// </summary>
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public class UISpriteAnim : MonoCacheBase
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{
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#region 私有成员变量
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//当前sprite组件
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private UISprite _currentSprite;
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//sprite在atlas中的名字
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private string _spName;
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//如果当前是sprite组件，则支持动画
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private bool _supportAnim;
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//是否循环播放
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private bool _loop;
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//如果不是loop，则会显示指定的随机帧
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private int _randomFrame;
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//指定循环播放几次
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private int _loopTimes;
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//是否指定循环播放
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private bool _limitLoop;
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//是否开始播放
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private bool _play;
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//设置sprite最大支持的动画帧数
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private int _animImgMaxCount = 100;
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//播放的sprite序列号
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private int _animImgIndex = 0;
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//sprite轮换速度，即播放动画的速率，这里是0.1秒播放1帧
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private float _speed = 0.1f;
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//update函数在播放一帧动画前累计的时间，如果比较卡，update刷新一次就可能超过0.1秒
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//所有就需要用累积时间计算当前应该播放的动画帧，可能会跳过几帧动画
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private float _timeDelta = 0;
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//sprite在altas中所有一系列的名字，用于播放动画
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private List<string> _spAnimNameList = new List<string>();
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#endregion
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#region//继承MonoBehaviour
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private void Awake()
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{
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Initialize();
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}
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private void Start()
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{
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}
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//初始化
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private void OnEnable()
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{
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_timeDelta = 0;
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}
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private void Update()
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{
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if (_supportAnim && _play && _spAnimNameList.Count > 0)
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{
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_timeDelta += Time.deltaTime;
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//计算需要播放的是后续的第几帧动画，当count>0才播放
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int count = (int)(_timeDelta / _speed);
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if (count == 0)
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{
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return;
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}
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playNextAnim(count);
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}
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}
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#endregion
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public void Initialize()
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{
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_spAnimNameList.Clear();
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_currentSprite = transform.GetComponent<UISprite>();
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if (_currentSprite != null)
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{
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_spName = _currentSprite.spriteName;
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//有"_"作分割，说明是有系列sprite，能播放动画
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if (!_spName.Contains("_"))
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{
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return;
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}
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_supportAnim = true;
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string spriteHeadName = _spName.Split('_')[0];
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string spriteAnimName = null;
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for (int i = 1; i < _animImgMaxCount; ++i)
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{
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spriteAnimName = string.Format("{0}_{1}", spriteHeadName, i);
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if (_currentSprite.atlas.GetSprite(spriteAnimName) == null)
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{
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break;
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}
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_spAnimNameList.Add(spriteAnimName);
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}
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}
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_loop = true;
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}
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public void Play()
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{
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_play = true;
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}
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/// <summary>
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/// 设置最后展示的动画帧
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/// </summary>
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public void SetShowFrame(int index)
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{
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_randomFrame = index;
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}
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/// <summary>
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/// 设置循环次数， 0 为不循环, 默认3次
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/// </summary>
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public void SetLoopTimes(int times = 3)
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{
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_loopTimes = times;
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_limitLoop = true;
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}
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public void Pause()
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{
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_play = false;
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}
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public void Stop()
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{
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_play = false;
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_animImgIndex = 0;
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_timeDelta = 0;
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}
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/// <summary>
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/// 播放后续第几帧动画
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/// </summary>
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/// <param name="count">第几帧</param>
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private void playNextAnim(int count)
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{
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_animImgIndex += count;
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//循环次数
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if (_limitLoop && _animImgIndex == _spAnimNameList.Count - 1)
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{
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_loopTimes -= 1;
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if (_loopTimes < 0)
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{
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_animImgIndex = _randomFrame;
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Pause();
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}
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}
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if (_animImgIndex >= _spAnimNameList.Count)
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{
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_animImgIndex = 0;
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}
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_currentSprite.spriteName = _spAnimNameList[_animImgIndex];
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_currentSprite.color = Color.white;
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//当播放了下一帧动画后，累积时间清0
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_timeDelta = 0;
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}
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}
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}
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