How to make signal between scenes?

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vomppis

I have scenes A, B and C.

A is the main scene, and scenes B and C are just instanciated in it.

In scene B I have this script:

signal sploosh

func _ready():
	if Input.is_action_pressed("Splash"):
		emit_signal("sploosh")

And in scene C I have this script:

func _ready():
	get_parent().get_node("SceneB").connect("sploosh", self, "asd")
	

func asd():
	print("yay")

But it still is not working as it should. Do I use some deprecated stuff or something?

With print(get_parent().get_node("SceneB").get_signal_list()) from Scene C I can see the sploosh signal though. Signals have been the toughest part to learn for some reason to me.

Megalomaniak

vomppis In scene B I have this script:
signal sploosh
func _ready():
	if Input.is_action_pressed("Splash"):
		emit_signal("sploosh")

This is wrong, you don't use Input in _ready() also, I suspect you don't want it to actually emit that signal in that exact moment when the node becomes 'ready' anyways.

Either do this in _input() or one of the processes but not in ready or in init.

vomppis

Megalomaniak Yes, after sending the first post, I moved the if block to separate function like this, but it did not solve the problem:

func _ready():
	asd()

func asd():
	if Input.is_action_pressed("Splash"):
		emit_signal("sploosh")

lee-willis
I will try if this solves the problem. Do you mean like this to Scene A script:
get_node("SceneB").connect("sploosh", $SceneC, "asd")

lee-willis

Is is possible that at the time when C's _ready() func is called, scene B has not been constructed yet? I would try moving the connect call to the parent node A. That way you know both child nodes have been constructed.

Megalomaniak

vomppis That is still just as wrong, asd() in turn is still called from ready. Just remove that func _ready(): line and it's contents altogether for now, cause it seems to be confusing you. Having _ready(): in a script is not mandatory.

And rename that func asd(): to either func _input(): or func _process():.

Then create a new func asd(): as such:

func asd():
    print("yay")

vomppis

Megalomaniak Thanks, now it works.
I need to remember that Godot does not see all the nodes automatically, so the exact path must be given always.

Megalomaniak

See linked project.