Unable to make custom resource/class that is editable in editor

[lament mica]

Hi all, I'm trying to make a custom class that can be edited within the editor. I saw that the Resource class is useful for this, but for some reason when I try to implement it I get "ERROR: Cannot get class 'TestClass'.". Anything simple I'm missing to get this working?

[twin saddle]

Watch “Custom Resources in Godot 4 and How to Use Them” on YouTube—it shows step-by-step how to register a class_name, create the .tres, and avoid the “Cannot get class” error.

https://youtu.be/NuLSYHK-8Yg?si=iYtI4R-avWwr_lYS

[lament mica]

Cheers 👍
I'm going to be using them to create difficulty presets for my game, so it'll be an array of Difficulty resources. I'm assuming this is the best method for that?

[twin saddle]

Also, this might be related maybe.

Add to your script:

extends Resource
class_name TestClass

Save it and reload the editor; giving the script a class_name is what registers the custom Resource so Godot can find it.

[twin saddle]

1 sec

Ah

You’re usinh C#

[lament mica]

Yup

[twin saddle]

Finally

[twin saddle]

Yes — array of Difficulty Resources is the clean way I think.

For C#: inherit from Resource and add [GlobalClass]:

using Godot;

[GlobalClass] // registers the resource type
public partial class TestClass : Resource { }

Rebuild the project; the editor will now list TestClass as a creatable Resource (perfect for your difficulty-preset array).

Going to bed now

G’nite

[lament mica]

Apparently creating a brand new script and having it inherit from Resource straight from the get go worked. Not sure why but there we go.

[twin saddle]

Don’t forget to tag it as solved if you haven’t already, xD

[frank ravine]

A small tip: When using C#, make sure your .cs file is named exactly the same as the class you are trying to make global with [GlobalClass], otherwise godot cannot find it.

[lament mica]

That might have been it actually

[twin saddle]

A YUUUGE tip