Problem adding/removing gameplay tags using interfaces

Development Programming & Scripting
, ,
1

I’m testing out using gameplay tags to decouple blueprints.

I have a BPI_GameplayTags interface with the GetGameplayTags interface function that allows me to get the gameplay tags for any actor that implements the interface

I have a level blueprint with a trigger box and when i walk into it, I would expect it to add the tag FollowActor

image
image965×495 51.5 KB

However it doesn’t do this. It doesn’t remove tags either.

image
image412×287 15.2 KB

Is it because the TagContainer input pin gets the TagContainer “by ref”?

If so, what is the correct way to use this?

As a work around, I have added AddGameplayTags and RemoveGameplayTags to my BPI_GameplayTags interface but it seems like a weird duplication of effort and it would have been nice to just have to use my GetGameplayTags interface function and the UE5 AddGameplayTag function.

2

Your interface function returns a copy of the variable.
Pretty sure it’s not possible to return a reference to a variable in blueprints.
So you’ll have to use the Add/Remove functions instead.

1 Like