signal 사용하기(in GDScript)

extends Node
...
signal my_signal


func _ready():
    connect("my_signal", self, "signal_handler")
    ...
    var otherNode = get_node("someNode")
    otherNode.connect("my_signal", self, "signal_handler")

func SomeFunc():
    ...
    # causes self.signal_handler() to be called
    emit_signal("my_signal")
    ...

func signal_handler():
    ...

 

[참고] https://godotengine.org/qa/3218/how-to-create-a-custom-signal-in-gdscript