Can you make a signal multiple nodes can emit

[Gunkis1]

Godot Version

Godot 4.4.1

Question

I’m trying to make a signal that one of my nodes listens to, but I want it to be able to take the signal from any other node. Currently, whenever I connect a signal, it adds the function shown as “on(node)_(signalname)”. How do I make it so any node can emit that signal?

[gertkeno]

Through the editor you can connect multiple nodes to the same function, just change the name to match or use the “pick” button.

[dragonforge-dev]

There are three ways to do this.

First, as @gertkeno suggested, you can just name the signal the same thing in every Node you want to use it.

signal mysterious_signal

If you don’t want to add that to every file separately, you can make a base class to inherit from for each type like so:

class_name MysteriousSignalBase extends Node

signal mysterious_signal

Then use it like this:

extends MysteriousSignalBase

---

Second, as long as you have a reference to a node that has a signal, you can emit it.

var emitter_node = $SomeNode

emitter_node.mysterious_signal.emit()

---

Third, you can create a clearance house or conductor class, something all the general signal class flows through and make it an Autoload.

extends Node

signal mysterious_signal

When you make it an automload let’s say you call it Conductor. Then you could connect to it anytime.

Conductor.mysterious_signal.emit()

[Gunkis1]

Thanks so much! Didn’t expect it to be that simple!

[OriginalBadBoy]

I’d go for the third option that @dragonforge-dev suggested. It takes a bit more to set up, but uncouples your objects and will be accessible from anywhere.

Thats what I do with all of my projects (C#), have a signals manager class that everything talks to.