70 lines
2.4 KiB
GDScript
70 lines
2.4 KiB
GDScript
## Represents a Godot [Signal] as an observable sequence
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static func from_godot_signal_(
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sig : Signal,
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scheduler : SchedulerBase = null
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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 _scheduler : SchedulerBase = null
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if scheduler != null: _scheduler = scheduler
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elif scheduler_ != null: _scheduler = scheduler_
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else: _scheduler = GodotSignalScheduler.singleton()
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var obj = instance_from_id(sig.get_object_id())
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if obj == null:
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GDRx.raise(NullReferenceError.new())
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return Disposable.new()
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var n_args = -1
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var sig_lst = obj.get_signal_list()
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for dict in sig_lst:
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if dict["name"] == sig.get_name():
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n_args = dict["args"].size()
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break
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var action : Callable
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match n_args:
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0:
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action = func():
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observer.on_next(Tuple.new([]))
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1:
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action = func(arg1):
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if arg1 is Array:
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observer.on_next(Tuple.new(arg1))
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else:
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observer.on_next(arg1)
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2:
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action = func(arg1, arg2):
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observer.on_next(Tuple.new([arg1, arg2]))
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3:
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action = func(arg1, arg2, arg3):
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observer.on_next(Tuple.new([arg1, arg2, arg3]))
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4:
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action = func(arg1, arg2, arg3, arg4):
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observer.on_next(Tuple.new([arg1, arg2, arg3, arg4]))
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5:
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action = func(arg1, arg2, arg3, arg4, arg5):
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observer.on_next(Tuple.new([arg1, arg2, arg3, arg4, arg5]))
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6:
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action = func(arg1, arg2, arg3, arg4, arg5, arg6):
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observer.on_next(Tuple.new([arg1, arg2, arg3, arg4, arg5, arg6]))
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7:
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action = func(arg1, arg2, arg3, arg4, arg5, arg6, arg7):
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observer.on_next(Tuple.new([arg1, arg2, arg3, arg4, arg5, arg6, arg7]))
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8:
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action = func(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8):
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observer.on_next(Tuple.new([arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8]))
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_:
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GDRx.raise(TooManyArgumentsError.new(
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"Only up to 8 signal parameters supported! Use lists instead!"))
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return Disposable.new()
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if not _scheduler is GodotSignalScheduler:
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_scheduler = GodotSignalScheduler.singleton()
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var godot_signal_scheduler : GodotSignalScheduler = _scheduler
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return godot_signal_scheduler.schedule_signal(sig, n_args, action)
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return Observable.new(subscribe)
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