Inventory Pro

Item use conditions


Unlike the collections, the item use conditions are static (for all items) allowing you to create global usage rules.


public class CustomItemUseConditions : MonoBehaviour
{

    public void Awake()
    {
        // Register our custom check.
        InventoryItemBase.canUseItemConditionals.Add(CustomItemConditions);
    }

    private bool CustomItemConditions(InventoryItemBase item)
    {
        // Only allow the user to use an item if the buy price is higher than 5
        if (item.buyPrice > 5)
            return true; // The item can be used.

        return false; // The item cannot be used.
    }
}

Alternatively you can also check the item type, cast it, and use the item’s specific fields.


private bool CustomItemConditions(InventoryItemBase item)
{
    // Only allow the user to use an item if the buy price is higher than 5
    if (item is EquippableInventoryItem)
    {
        var equippable = (EquippableInventoryItem) item;
        return !equippable.isEquipped; // Only allow the equippable to be used as long as it's not equipped.
    }

    return false; // The item cannot be used.
}