private void InteractWithItemObject(ItemObject itemObject)
        {
            Debug.Assert(itemObject.Item != null);
            IUsable     usable     = itemObject.Item as IUsable;
            IPickupable pickupable = itemObject.Item as IPickupable;
            IEquipable  equipable  = itemObject.Item as IEquipable;
            IStackable  stackable  = itemObject.Item as IStackable;

            if (usable != null)
            {
                usable.OnUse(_stats, itemObject);
            }
            else if (pickupable != null)
            {
                if (equipable != null && equipable.IsDurable && _equipment.EquipmentTable[equipable.EquipmentType].IsEmpty)
                {
                    equipable.OnEquip(_equipment, _stats);
                }
                else if (stackable != null)
                {
                    stackable.OnStack(_inventory);
                }
                else
                {
                    pickupable.OnPutInInventory(_inventory);
                }
                pickupable.OnRemoveFromGround(itemObject);
            }
        }