68 lines
1.4 KiB
GDScript3
68 lines
1.4 KiB
GDScript3
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static func sample_observable(
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source : Observable, sampler : Observable
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) -> Observable:
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var subscribe = func(
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observer : ObserverBase,
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scheduler : SchedulerBase = null
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) -> DisposableBase:
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var at_end = RefValue.Set(false)
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var has_value = RefValue.Set(false)
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var value = RefValue.Null()
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var sample_subscribe = func(__ = null):
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if has_value.v:
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has_value.v = false
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observer.on_next(value.v)
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if at_end.v:
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observer.on_completed()
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var on_next = func(new_value):
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has_value.v = true
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value.v = new_value
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var on_completed = func():
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at_end.v = true
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return CompositeDisposable.new([
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source.subscribe(
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on_next, observer.on_error, on_completed,
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scheduler
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),
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sampler.subscribe(
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sample_subscribe,
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observer.on_error,
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sample_subscribe,
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scheduler
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)
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])
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return Observable.new(subscribe)
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static func sample_(
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sampler : Observable,
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sampler_time : float = NAN,
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scheduler : SchedulerBase = null
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) -> Callable:
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# """Samples the observable sequence at each interval.
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#
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# Examples:
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# >>> var res = sample.call(source)
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#
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# Args:
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# source: Source sequence to sample.
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#
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# Returns:
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# Sampled observable sequence.
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# """
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var sample = func(source : Observable) -> Observable:
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if sampler_time != NAN:
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return sample_observable(
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source, GDRx.obs.interval(sampler_time, scheduler)
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)
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else:
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return sample_observable(source, sampler)
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return sample
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