32 lines
473 B
GDScript3
32 lines
473 B
GDScript3
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class_name StateReentrometer extends RefCounted
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signal entered
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signal descended
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signal ascended
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signal exited
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var _depth: int = 0
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func descend() -> void:
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assert(_depth >= 0)
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if _depth <= 0:
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entered.emit()
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descended.emit()
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_depth += 1
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func ascend() -> void:
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assert(_depth > 0)
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_depth -= 1
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ascended.emit()
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if _depth <= 0:
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exited.emit()
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func active() -> bool:
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return _depth > 0
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func depth() -> int:
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return _depth
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func valid() -> bool:
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return _depth >= 0
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