Final _ready when all nodes are ready.

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:bust_in_silhouette: Asked By DavidPeterWorks

Hi,

Some of my nodes dependent from other nodes. _ready is called but the dependent node is not initiated (not ready).

Is there any standard way to have a completed hierarchy so the dependent structures can setup?

I use ugly things like:

func _ready():
	yield(get_tree().create_timer(0.1),"timeout")
	superDependentCallsAndSetups()

Thank you,
David

What’s the relationship between the node with that script and the dependent node? Is it parent or child?

Dlean Jeans | 2019-06-04 10:12

Child modifies the behavior of the parent.

DavidPeterWorks | 2019-06-04 10:20

I’m not sure, but isn’t this a job for ‘signals’?
I know that every node in your tree emits a signal on ready. You should be able to trigger some function in your mother-node, whenever specific ready-signals have been received.

Ole | 2019-06-06 06:52

My solution turned out like this.

1, I added all of the dependent children nodes to a group “final_ready”.
2, I moved the scripts in the _ready() to a new method final_ready().
3, I call the call_group(“final_ready”) from the scene root in the _ready() function.

The result is that. I initialize all the dependent nodes after the whole scene structure is ready.

Is there any better solution?

DavidPeterWorks | 2019-06-06 08:00

The best solution would be to get rid of the dependency, and use dependency injection instead, as described in Scene organization — Godot Engine (3.1) documentation in English

But if this doesn’t work for whatever reason, your call_group solution looks fine.

Thomas Karcher | 2019-06-06 15:05

1 Like
2

I had to spent some time googling it (had issues with change_scene_to_file) and solved it by adding a script in scene root - so that it’s called even after the root itself is ready.

extends Node


func _ready() -> void:
	call_deferred("after_ready")

func after_ready() -> void:
	superDependentCallsAndSetups()