How to create a custom signal in GDScript?

Question

I need to create a custom signal for a custom control in GDScript.
I see there is a signal keyword, but how do I use it?

Answer 1

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():
    ...

edited

Comments

Ok, so a signal is declared like that :)
I figured out that emit_signal("my_signal") works, but emit my_signal is seen as an error.

---

Sorry! Edited now.

---

all you really have to do is this for simpler programs

signal SignalNameHere

then use the editor to connect to target

wherever you want the signal to "emit" put

emit_signal("SignalNameHere")

and voila

I recommend it is used for simpler programs as this requires you to connect the signals when with more complicated ones the program may have to do it itself. So hears the code.

signal SignalNameHere

func  _ready():
emit_signal("SignalNameHere")

---

https://godotengine.org/qa/user/duke_meister Thank you sieerrr

The most pricise explanation