41 lines
856 B
GDScript
41 lines
856 B
GDScript
extends Node
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class_name CallbackMap
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var callbacks := {}
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func add(key: Variant, callback: Callable) -> void:
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_validate_key(key)
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if callbacks.has(key):
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callbacks[key].append(callback)
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else:
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callbacks[key] = [callback]
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func add_once(key: Variant, callback: Callable) -> void:
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_validate_key(key)
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var fn: Callable
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fn = func(args: Array):
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remove(key, fn)
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callback.callv(args)
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add(key, fn)
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func remove(key: Variant, callback: Callable) -> void:
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_validate_key(key)
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if callbacks.has(key):
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callbacks[key].erase(callback)
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func call_key(key: Variant, args: Array) -> void:
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_validate_key(key)
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if callbacks.has(key):
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for callback in callbacks[key]:
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callback.callv(args)
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func _validate_key(key: Variant):
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assert(typeof(key) == TYPE_STRING || typeof(key) == TYPE_INT || typeof(key) == TYPE_FLOAT, "key must be a string or number")
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