/// <summary> /// Called when [pre tick]. /// </summary> protected virtual void OnPreTick() => PreTick?.Invoke(this, EventArgs.Empty);
/// <summary>
/// The method that performs ticks. This is subscribed to the Timer Elapsed event.
/// </summary>
private void Tick(object sender, ElapsedEventArgs args)
{
//=====
//We use a lock and use Monitor to check if we can aquire it. We dont use lock as we want to end the execution instead of pausing it.
//=====
bool haveLock = false;
try
{
Monitor.TryEnter(_tickLock, ref haveLock);
//If we were not able to get the lock, return.
if (!haveLock)
{
return;
}
//*** TICK BODY ***
//Convert the tick delay to a float in seconds.
float ticktimeinseconds = TickDelay / 1000;
//This is called when we tick.
PreTick?.Invoke(_session, ticktimeinseconds);
//Execute any delegates that are waiting.
for (int x = 0; x < SessionActionsQueue.Count; x++)
{
SessionAction sessionAction;
while (SessionActionsQueue.TryDequeue(out sessionAction))
{
sessionAction.Invoke(_session, TickDelay);
}
}
//Check if there are any new tickables in the queue.
TryDequingNewTickables();
//Execute all ticks
for (int i = TickTargets.Count - 1; i >= 0; i--)
{
if (TickTargets[i].ShouldBeRemoved)
{
TickTargets.RemoveAt(i);
}
else
{
TickTargets[i].Tick(ticktimeinseconds);
}
}
#region Low Priority
//Check if we should tick low priority targets.
//Increase the timer and check its value.
_lowPriorityTicksPassed++;
if (_lowPriorityTicksPassed >= _lowPriorityRate)
{
//Tick all low priority objects
for (int i = LowPriorityTickTargets.Count - 1; i >= 0; i--)
{
if (LowPriorityTickTargets[i].ShouldBeRemoved)
{
LowPriorityTickTargets.RemoveAt(i);
}
else
{
LowPriorityTickTargets[i].Tick(ticktimeinseconds * _lowPriorityRate);
}
}
//Invoke event
LowPriorityTick?.Invoke(_session, ticktimeinseconds * _lowPriorityRate);
//Reset counter
_lowPriorityTicksPassed = 0;
}
#endregion
//Post tick event.
PostTick?.Invoke(_session, ticktimeinseconds);
}
catch (System.Exception e)
{
#if UNITY_EDITOR
//Log the exception on the main thread.
//Only worth doing in the editor otherwise it will never be seen in some random file.
//However we still want to catch these exceptions, just do nothing.
Game.CurrentSession.TaskManager.Tasks.Enqueue(() => { UnityEngine.Debug.LogError(e.Message); });
#endif
}
finally
{
if (haveLock)
{
Monitor.Exit(_tickLock);
}
}
}
