Create a Blueprint Attribute Set

First thing first, we need to create the Blueprint for our Attribute Set. To do so, right click in the Content Browser and click on:

Gameplay > Gameplay Blueprint Attributes > Gameplay Blueprint Attribute Set

The prefix used here for Blueprint Attribute Sets will be "GBA_", standing for Gameplay Blueprint Attributes.

We're going to implement a simple AttributeSet to hold a Health variable: GBA_Health_Set

Doing so will ensure the Blueprint is using a specific UBlueprint (UGBAAttributeSetBlueprint) and a customized BlueprintEditor (FGBABlueprintEditor). We will go over briefly each of its features.