Daily Unreal Column #45 - Child Gameplay Tags

The way gameplay tags are structured, it is possible to get all "child" gameplay tags based on a "parent" gameplay tag name. Here is how.

Looking at Lyra's gameplay tags you can immediately see what I mean by child-parent relation between tags. When we declare these two gameplay tags

ActivationFail.IsDead
ActivationFail.Cooldown

the ActivationFail is the parent gameplay tag, and both IsDead and Cooldown are being children to it.

Now using following code you can fetch all child gameplay tags whose parent is ActivationFail.

const FGameplayTag ParentTag = FGameplayTag::RequestGameplayTag("Ability.ActivateFail");  
UGameplayTagsManager& GameplayTagManager = UGameplayTagsManager::Get();  
FGameplayTagContainer ChildTags = GameplayTagManager.RequestGameplayTagChildren(ParentTag);

When we print all tags contained in the gameplay tag container this will be the result:

Log          LogTemp                   Ability.ActivateFail.ActivationGroup
Log          LogTemp                   Ability.ActivateFail.CellAlreadyContainsBomb
Log          LogTemp                   Ability.ActivateFail.Cooldown
Log          LogTemp                   Ability.ActivateFail.Cost
Log          LogTemp                   Ability.ActivateFail.IsDead
Log          LogTemp                   Ability.ActivateFail.MagazineFull
Log          LogTemp                   Ability.ActivateFail.Networking
Log          LogTemp                   Ability.ActivateFail.NoSpareAmmo
Log          LogTemp                   Ability.ActivateFail.TagsBlocked
Log          LogTemp                   Ability.ActivateFail.TagsMissing