public static IRadicalYieldInstruction Wait(this ISPAnim anim, SPTimePeriod period, bool stopAnimOnComplete)
{
if (anim == null)
{
throw new System.ArgumentNullException("anim");
}
if (!anim.IsPlaying || period.Seconds <= 0f)
{
return(null); //yielding to when a non-playing anim finishes is just one frame, yield null
}
if (period.Seconds == float.PositiveInfinity && anim is IRadicalYieldInstruction)
{
return(anim as IRadicalYieldInstruction); //SPAnim can be used directly as a yield instruction to its end
}
else
{
var handle = RadicalWaitHandle.Create();
anim.Schedule((a) =>
{
if (stopAnimOnComplete && a.IsPlaying)
{
a.Stop();
}
handle.SignalComplete();
}, period.Seconds, period.TimeSupplier);
return(handle);
}
}
public IRadicalWaitHandle Wait()
{
if (_handle == null)
{
_handle = RadicalWaitHandle.Create();
}
return(_handle);
}
public override bool Trigger(object arg)
{
if (!this.CanTrigger)
{
return(false);
}
if (_handle != null)
{
_handle.SignalComplete();
_handle = null;
}
return(true);
}
