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26 lines
644 B
GDScript
26 lines
644 B
GDScript
# a value provider unsing a callback to get `next` value from a certain function
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class_name CallBackValueProvider
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extends ValueProvider
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var _cb :Callable
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var _args :Array
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func _init(instance :Object, func_name :String, args :Array = Array(), force_error := true) -> void:
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_cb = Callable(instance, func_name);
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_args = args
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if force_error and not _cb.is_valid():
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push_error("Can't find function '%s' checked instance %s" % [func_name, instance])
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func get_value() -> Variant:
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if not _cb.is_valid():
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return null
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if _args.is_empty():
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return await _cb.call()
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return await _cb.callv(_args)
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func dispose() -> void:
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_cb = Callable()
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