public void Add(Thing t)
{
t.Scene = this;
t.Id = NextId++;
_things.Add(t);
if (AddedSinceLastRender.Contains(t) == false)
{
AddedSinceLastRender.Add(t);
}
t.InitializeThing(this);
ThingAdded.Fire(t);
t.Added.Fire();
t.LastBehavior = ElapsedTime;
}
public Promise Start()
{
if (RenderImpl == null)
{
throw new InvalidOperationException($"You need to set the {nameof(RenderImpl)} property");
}
stopRequested = false;
last = DateTime.MinValue;
var deferred = Deferred.Create();
Thread t = new Thread(() =>
{
try
{
isRunning = true;
stopRequested = false;
Current = this;
frameRateMeter = new FrameRateMeter();
Started.Fire();
while (!stopRequested)
{
lock (interactionQueue)
{
while (interactionQueue.Count > 0)
{
Add(interactionQueue.Dequeue());
}
}
while (DateTime.Now - last < _minTimeBetweenRenderIterations)
{
Thread.Sleep(0);
}
Tick();
RenderImpl();
AddedSinceLastRender.Clear();
RemovedSinceLastRender.Clear();
UpdatedSinceLastRender.Clear();
frameRateMeter.Increment();
}
}
catch (Exception ex)
{
if (ExceptionOccurred.HasSubscriptions)
{
ExceptionOccurred.Fire(ex);
}
deferred.Reject(ex);
}
finally
{
isRunning = false;
try
{
Stopped.Fire();
if (deferred.IsFulfilled == false)
{
deferred.Resolve();
}
}
catch (Exception ex)
{
if (ExceptionOccurred.HasSubscriptions)
{
ExceptionOccurred.Fire(ex);
}
if (deferred.IsFulfilled == false)
{
deferred.Reject(ex);
}
}
Current = null;
}
});
t.Priority = ThreadPriority.AboveNormal;
t.IsBackground = true;
t.Start();
return(deferred.Promise);
}
