Using Gameplay Tags in C++?

Development Programming & Scripting C++
12

Alrighty, I think I’ve created a decent solution to my initial post. The below code is a 1 time conversion from GameplayTagContainer into a Name Array that can easily and quickly be searched at any time.

It seems pretty good to me, but let me know if there’s actually any big flaws/performance problems with this method.

Here’s what I’m using for an Item Chest where developers can select multiple item tags to spawn in the chest.



UPROPERTY(EditAnywhere, meta = (Categories = "Items")) FGameplayTagContainer ItemTag;
TArray<FName> NTags;




BeginPlay(){

    //Convert GameplayTagContainer into array of names
    for (int8 i = 0; i < ItemTag.Num(); i++) {
        FString tagStr = ItemTag.GetByIndex(i).GetTagName().ToString();
        int8 endDot = tagStr.Find(".", ESearchCase::IgnoreCase, ESearchDir::FromEnd);
        if(endDot > -1) tagStr = tagStr.RightChop(endDot+1);
        NTags.Add(*tagStr);
    }
}

That also puts only the last tag into the list, removing the categories. So:
Items.Potions.MediumPotion
Items.Potions.HighPotion
Items.Bombs.FireBomb

Becomes MediumPotion, HighPotion, FireBomb. Easy to loop through and spawn the items. Also easy to do the quick lookups I was asking about before using:


Tags.Contains("MediumPotion");

For single GameplayTags, you can also easily use the below method to check if it contains a specific tag:



GameplayTag.GetTagName().ToString().Contains("MediumPotion");

This method might be easier to search for single tags than requesting a fully typed out + categorized gameplay tag.
Whether it performs better or worse I don’t know, but might save typing-time in the long run for single lookups.

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