Blueprint can't inherit other blueprint. What should I do?

Development Programming & Scripting
1

Hello,

I enjoy programming with Blueprint and have a new question. Blueprint can’t inherit other blueprint? I created MyPawn BP and implemented some functions with some variables for AI. I planned to create some sub-class inheriting this BP, but it’s impossible. I’d like to share the features of the BP with function definition and property definition. BP interface can’t do that, right? Can I have alternative solution?

Thanks.

2

Hey Kazuhisa,

Actually you can inherit from another blueprint. It is a feature that exists but hasn’t been turned on yet but once it is good will be turned on. For right now you can turn it on by going to config/BaseEngine.ini then find the line:
[Kismet]
AllowDerivedBlueprints=false

change false to true, save and restart the editor. You should be able to right click and and select ‘Create Blueprint based on this’

Keep in mind this is a work in progress and is not intended for common use yet.

Best Regards,

Ryan

3

AllowDerivedBlueprints will be on by default in beta 4.

Cheers,
Michael Noland

4

Thank you for the answer! Awesome!
I’m going to try it.

5

Is this working yet?

6

Yep you can right click a existing blueprint and inherit from it :slight_smile: ‘Create blueprint based on this’.

7

So is this like true class inheritance or more like copy and paste?

8

It is true inheritance. Blueprints compile down to a uclass so changes made in the parent will be reflected in the children when you recompile.

9

Oooh. I like the sound of that.