# This script makes a smart door lock
# It waits for the player to have a key item

using { /Fortnite.com/Devices }
using { /Fortnite.com/Game }
using { /Verse.org/Simulation }
using { /UnrealEngine.com/Temporary/Diagnostics }

# A Verse device that wires a conditional_button_device
# to a door_guard_device (the closest real "lock" device in UEFN).
# note: UEFN exposes door_guard_device for locking/unlocking doors;
#       there is no standalone LockDevice class in the public Verse API.
MySmartLock := class(creative_device):

    # Drag-and-drop these in the UEFN outliner after placing the device.
    @editable
    MyDoorGuard : door_guard_device = door_guard_device{}

    @editable
    MyButton : conditional_button_device = conditional_button_device{}

    @editable
    MyItemGranter : item_spawner_device = item_spawner_device{}

    # OnBegin runs automatically when the game session starts.
    OnBegin<override>()<suspends> : void =
        # Disable the button so players cannot press it yet.
        MyButton.Disable()

        # Subscribe to the button's activated event.
        # When the conditional button decides all conditions are met
        # and the player presses it, fire OnButtonActivated.
        MyButton.ActivatedEvent.Subscribe(OnButtonActivated)

        # Subscribe to the item spawner's pickup event so we know
        # when the player collects the key item (the torch).
        # note: item_spawner_device.PickedUpEvent is the real event
        #       for detecting when a spawned item is collected.
        MyItemGranter.PickedUpEvent.Subscribe(OnKeyItemPickedUp)

    # Runs when the player picks up the key item from the spawner.
    OnKeyItemPickedUp(Agent : agent) : void =
        # The player now has the key item, so enable the button.
        MyButton.Enable()

    # Runs when the player successfully activates the conditional button.
    OnButtonActivated(Agent : agent) : void =
        # Unlock the door by disabling the door guard.
        # note: door_guard_device.Disable() removes the guard,
        #       allowing players to pass through the linked door.
        MyDoorGuard.Disable()