/// <summary>
/// 延迟执行
/// </summary>
/// <param name="time">延迟时间</param>
/// <param name="action"></param>
/// <returns>返回当前的TimerTask,如果需要停止任务,则直接将该任务对象Enable属性设置为false,下次执行时会跳过并将其移出队列</returns>
public TimerTask DoDelay(float time, Action action)
{
TimerTask task = new TimerTask()
{
Repeat = false,
Enable = true,
RepeatTime = time,
NextTime = m_timer + time,
Task = action
};
AddTask(task);
return(task);
}
/// <summary>
/// 定时重复执行
/// </summary>
/// <param name="time">间隔时间</param>
/// <param name="action">执行的action</param>
/// <param name="immediate" default="false">是否立刻执行一次</param>
/// <returns>返回当前的TimerTask,如果需要停止任务,则直接将该任务对象Enable属性设置为false,下次执行时会跳过并将其移出队列</returns>
public TimerTask DoRepeat(float time, Action action, bool immediate = false)
{
TimerTask task = new TimerTask()
{
Repeat = true,
Enable = true,
RepeatTime = time,
NextTime = m_timer + time,
Task = action,
};
if (immediate)
{
action.Invoke();
}
AddTask(task);
return(task);
}
/// <summary>
/// 从队首开始处理所有到时间的任务
/// </summary>
/// <returns>下次任务执行时间</returns>
private float ProcessTask()
{
int safeCount = 0;
while (true)
{
TimerTask firstTask = m_taskQueue.Peek();
//为空时队列里面没有任务
if (firstTask == null)
{
return(m_firstTaskTime = float.MaxValue);
}
//不可用的任务移出队列
if (!firstTask.Enable)
{
m_taskQueue.Dequeue();
continue;
}
if (firstTask.NextTime > m_timer)
{
return(m_firstTaskTime = firstTask.NextTime);
}
m_taskQueue.Dequeue();
firstTask.Task.Invoke();
if (firstTask.Repeat)
{
firstTask.NextTime += firstTask.RepeatTime;
m_taskQueue.Enqueue(firstTask);
}
if (safeCount++ > BaseConst.TIMER_MAX_TASK_PER_FRAME)
{
Debug.LogWarning($"该帧执行超过{BaseConst.TIMER_MAX_TASK_PER_FRAME}个任务,剩下至下一帧执行");
return(m_firstTaskTime);
}
}
}
/// <summary>
/// 新增任务
/// </summary>
/// <param name="task"></param>
private void AddTask(TimerTask task)
{
m_taskQueue.Enqueue(task);
m_firstTaskTime = m_taskQueue.Peek().NextTime;
}
public void Enqueue(TimerTask task)
{
queue.Add(task);
}