Inventory Manager

The Inventory Manager (AC_InventoryManager) provides all the necessary functionality to handle player Inventory & Storage, including adding, removing, and using items, managing currency, and updating the UI in runtime.

It is added to the PlayerController class by default (PC_SoulslikeFramework).

How It Works

1. Initialization:

   • Initializes all item slots and prepares the inventory UI for use.

   • InitializeLoadedInventory method tries to load inventory data from the relevant save slot.

2. Item Handling:

   • Adding Items: Items can be added through the relevant item asset or a Gameplay Tag.

     • Automatically increments quantity if the item already exists, or creates a new slot if it doesn’t.

   • Removing Items: Removes a specific quantity or deletes the item from the inventory entirely.

   • Using Items: Triggers the item’s OnUse function, spawning the appropriate actor (e.g., potion, consumable) and applying effects.

   • Triggering Actions: Triggers the item's provided ActionTag, queueing it through the Input Buffer.

3. Inventory Queries:

   • Supports multiple ways to query inventory data:

     • HasItem: Checks if a specific item is present.

     • GetAmountOfItemWithTag: Retrieves the quantity of items matching a specific tag.

     • GetEmptySlot: Finds the next available empty inventory slot.

4. UI Updates:

   • Event dispatchers such as OnInventoryUpdated and OnCurrencyUpdated ensure the inventory UI is always in sync with changes.

   • The GetInventoryWidget function links the UI directly to the inventory component.

5. Saving/Loading:

   • The SaveAllInventory function serializes the inventory state, including items, quantities, and configurations.

   • Inventory data is restored on load using the InitializeLoadedInventory function.

Example Usages

The provided Parent Door Class (B_Door) has a great example on utilizing the Inventory Manager for checking if multiple key items (e.g, KeyA x1 & KeyB x4) exist in inventory before unlocking a door:

Rest of the functionality is mainly handled by Inventory Widget.