public static SubListeners <S> NewSubStateListenerForUnity <T, S>(this SubListeners <T> self, UnityEngine.Object context, Func <T, S> getSubState, bool eventsAlwaysInMainThread = true)
{
var subListener = new SubListeners <S>(getSubState(self.latestSubState));
var ownListenerInParent = self.AddStateChangeListener(getSubState, newSubState => {
if (eventsAlwaysInMainThread)
{
MainThread.Invoke(() => { OnSubstateChangedForUnity(subListener, newSubState, context); });
}
else
{
OnSubstateChangedForUnity(subListener, newSubState, context);
}
});
subListener.SetUnregisterInParentAction(() => { self.innerListeners -= ownListenerInParent; });
return(subListener);
}
private static void OnSubstateChangedForUnity <V>(SubListeners <V> onStateChanged, V newVal, UnityEngine.Object context)
{
if (context.IsDestroyed())
{
onStateChanged.UnregisterFromParent();
return;
}
if (context is Behaviour b && !b.isActiveAndEnabled)
{
return;
}
if (context is GameObject go && !go.activeInHierarchy)
{
return;
}
onStateChanged.OnSubstateChanged(newVal);
}