upgrader_inventory_logic_world:
    type: world
    debug: true
    events:

        on player clicks in Upgrader_GUI:
        - if <context.clicked_inventory> == <context.inventory>:
            - if <context.slot> == 21 or <context.slot> == 22 or <context.slot> == 23:
                - announce "click correct slot"
            - else:
                - if <context.slot> == 25:
                    - narrate "<&[base]>upgrade button clicked! - <context.inventory.slot[21]>"
                    - determine cancelled
                - else:
                    - narrate "click cancelled"
                    - determine cancelled
        - if <context.clicked_inventory> == <context.inventory> && <context.is_shift_click>:
            - narrate "shift click correct slot"
        - else:
            - if <context.is_shift_click>:
                - narrate "shift cancelled"
                - determine cancelled

        on player drags in Upgrader_GUI:
        - if <context.clicked_inventory> == <context.inventory>:
            - announce "drag cancelled"
            - determine cancelled