Unity 如何实现一个定时器
【摘要】
using System;using UnityEngine; /// <summary>/// 时间单位/// </summary>public enum TimeUnit{ MILLSECOND, //毫秒 SECOND, //秒 MINUTE, //分钟 HOUR, ...
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using System;
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using UnityEngine;
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/// <summary>
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/// 时间单位
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/// </summary>
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public enum TimeUnit
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{
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MILLSECOND, //毫秒
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SECOND, //秒
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MINUTE, //分钟
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HOUR, //小时
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}
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/// <summary>
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/// 定时器
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/// </summary>
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public class Timer
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{
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/// <summary>
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/// 计时结束回调事件
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/// </summary>
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public event Action OnEnd;
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/// <summary>
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/// 计时更新事件
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/// </summary>
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public event Action<float> OnUpdate;
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//定时时长
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private float duration;
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//开始计时时间
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private float beginTime;
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//已计时间
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private float elapsedTime;
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//缓存时间（用于暂停）
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private float cacheTime;
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//是否循环
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private bool loop;
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//是否暂停
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private bool isPaused;
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//是否计时完成
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private bool isFinished;
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/// <summary>
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/// 构造函数
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/// </summary>
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/// <param name="duration">定时时长</param>
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/// <param name="timeUnit">时间单位</param>
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/// <param name="loop">是否循环</param>
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public Timer(float duration, TimeUnit timeUnit = TimeUnit.SECOND, bool loop = false)
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{
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switch (timeUnit)
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{
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case TimeUnit.MILLSECOND: this.duration = duration / 1000; break;
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case TimeUnit.SECOND: this.duration = duration; break;
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case TimeUnit.MINUTE: this.duration = duration * 60; break;
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case TimeUnit.HOUR: this.duration = duration * 3600; break;
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}
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this.loop = loop;
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beginTime = Time.realtimeSinceStartup;
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}
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/// <summary>
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/// 更新定时器
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/// </summary>
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public void Update()
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{
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if(!isFinished && !isPaused)
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{
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elapsedTime = Time.realtimeSinceStartup - beginTime;
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OnUpdate?.Invoke(Mathf.Clamp(elapsedTime, 0, duration));
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if(elapsedTime >= duration)
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{
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OnEnd?.Invoke();
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if (loop)
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{
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beginTime = Time.realtimeSinceStartup;
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}
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else
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{
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isFinished = true;
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}
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}
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}
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}
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/// <summary>
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/// 暂停定时器
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/// </summary>
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public void Pause()
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{
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if (!isFinished)
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{
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isPaused = true;
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cacheTime = Time.realtimeSinceStartup;
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}
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}
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/// <summary>
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/// 恢复定时器
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/// </summary>
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public void Unpause()
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{
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if(!isFinished && isPaused)
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{
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beginTime += Time.realtimeSinceStartup - cacheTime;
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isPaused = false;
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}
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}
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/// <summary>
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/// 停止定时器
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/// </summary>
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public void Stop()
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{
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isFinished = true;
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}
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}
Example:
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Timer timer;
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private void Start()
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{
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timer = new Timer(3f);
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timer.OnEnd += () => Debug.Log("计时结束 总计时长3秒");
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timer.OnUpdate += v => Debug.Log($"计时中 已计时长{v}秒");
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}
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private void Update()
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{
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timer.Update();
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}
文章来源: coderz.blog.csdn.net，作者：CoderZ1010，版权归原作者所有，如需转载，请联系作者。
原文链接：coderz.blog.csdn.net/article/details/109058036
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