Adding Items during Gameplay

In your Content Browser, navigate to your item data folder. If you are creating a new folder, it should match the configuration in your Asset Manager.

Right-click in any empty area, select the Inventory category, and then Item Definition.

Name your new container asset Consumable_HealthPotion and open it.

In the Gameplay Tags property, add the Inventory.Item.Potion.Health Gameplay Tag to identify this item.

Add the User Interface Fragment to configure how this item is presented in the user interface. Set appropriate values for it.

Add the Stack Fragment. Set a Stack Limit of 10 and a Maximum Limit of 100. Set it to Automatically Merge New Items.

Add the Container Fragment and configure your Preferred Container Query to prioritize the backpack container.

When you are done, your Health Potion should look like this (except maybe for the User Interface details).

Create an Add Health Potion event to retrieve the Inventory Manager and add the new Health Potion with a default stack of 5.

Blueprint

C++

In your Character, declare a Custom Event named Add Health Potion.

In your Character, declare a Blueprint Callable Function named Add Health Potion.

public:

    UFUNCTION(BlueprintCallable, Category = "Inventory")
    void AddHealthPotion();

void UInventoryExamples::AddHealthPotion()
{
	TArray<FInventoryDefaultItemMemory> Memories;

	const int32 StackSize = 5;
	const FInventoryDefaultItemMemory StackMemory = UNinjaInventoryGameplayFunctionLibrary::CreateStackMemory(StackSize);
	Memories.Add(StackMemory);

	FInventoryItemContext ItemContext, ResultContext;
	ItemContext = UNinjaInventoryFunctionLibrary::CreateItemContext(PotionItemData, Memories);

	UNinjaInventoryManagerComponent* InventoryManager = GetInventoryManager();
	InventoryManager->AddItem(ItemContext, ResultContext);

	if (ResultContext.IsSuccessful())
	{
		UE_LOG(LogTemp, Log, TEXT("Potion added!"));
	}
}

In your Character, create a Blueprint event from Debug Key K. Drag from the execution pin and call Add Health Potion.

tip

Normally, the item would be added from other Gameplay Systems, but using a Debug Key is a quick way to test features.

Hit the Play button and press the K key to add the potion.

Open the Gameplay Debugger to confirm that the Health Potion has been added to the inventory.