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35 lines
959 B
GDScript3
35 lines
959 B
GDScript3
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@icon("../icons/random_state.png")
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class_name RandomState
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extends State
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## Activates a random one of its substates.
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## Useful in conjuction with [AnimationState] for random idles.
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@export
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## When one of its children asks for a state change,
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## instead of picking another one itself, it defers that choice to its parent.
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## Allows for nested random states for finer control over flow and probability.
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var defer_choice := false
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func _init() -> void:
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set_meta(&"description", "Pseudo-randomly picks a state to start.")
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func _ready() -> void:
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randomize()
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super()
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# You can define which state is picked automatically (like on enter).
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# If you would like to call it yourself, use the public version (choose_substate).
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func _choose_substate() -> State:
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if get_child_count() == 0:
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return null
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if defer_choice and _active_substate != null:
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choose_new_substate_requested.emit()
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return null
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return get_child(randi() % get_child_count()) as State
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