Is there a way to make your own warnings when a child or value is missing?

Question

In the Scene view some built in nodes show warnings if a specific child or value is missing. Can you set this up your self from code? And how would you do that if it is possible?

Answer 1

I never done it, but it looks like it's possible. See this article:

https://dfaction.net/godot-editor-tips-custom-configuration-warnings/

Answer 2

Hi try to use:

func getconfiguration_warning()
return "Text warning" if ...

an example form a tutorial, they need to call a function(by pressing a button) to change the level but the level needs to be uploaded on the variable in the inspector.

func onbuttonup() -> void:
PlayerData.reset()
gettree().changescene(nextscene_path)

func getconfigurationwarning() -> String:
return "The property Next Level can't be empty" if nextscene_path == "" else ""

the tutorial on divided in 3 parts and is on YouTube, don't remember which one was, hope it helps.

https://www.youtube.com/watch?v=Mc13Z2gboEk&t=327s