public static IObservable <T> ObserveOnMainThread <T>(this IObservable <T> source, MainThreadDispatchType dispatchType)
{
switch (dispatchType)
{
case MainThreadDispatchType.Update:
return(source.ObserveOnMainThread()); // faster path
// others, bit slower
case MainThreadDispatchType.FixedUpdate:
return(source.SelectMany(_ => EveryFixedUpdate().Take(1), (x, _) => x));
case MainThreadDispatchType.EndOfFrame:
return(source.SelectMany(_ => EveryEndOfFrame().Take(1), (x, _) => x));
case MainThreadDispatchType.GameObjectUpdate:
return(source.SelectMany(_ => MainThreadDispatcher.UpdateAsObservable().Take(1), (x, _) => x));
case MainThreadDispatchType.LateUpdate:
return(source.SelectMany(_ => MainThreadDispatcher.LateUpdateAsObservable().Take(1), (x, _) => x));
#if SupportCustomYieldInstruction
#pragma warning disable 612 // Type or member is obsolete
case MainThreadDispatchType.AfterUpdate:
return(source.SelectMany(_ => EveryAfterUpdate().Take(1), (x, _) => x));
#pragma warning restore 612 // Type or member is obsolete
#endif
default:
throw new ArgumentException("type is invalid");
}
}
/// <summary>
/// EveryLateUpdate calls from MainThreadDispatcher's OnLateUpdate.
/// </summary>
public static IObservable <long> EveryLateUpdate()
{
return(MainThreadDispatcher.LateUpdateAsObservable().Scan(-1L, (x, y) => x + 1));
}