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

# This is our main script.
# It runs when the game starts.
MyScript := class(creative_device):

    # Wire these device references in the UEFN Details panel.
    @editable
    CraftingButton : button_device = button_device{}

    @editable
    MainDoor : prop_mover_device = prop_mover_device{}

    @editable
    RewardBox : item_granter_device = item_granter_device{}

    # OnBegin runs automatically when the game starts.
    OnBegin<override>()<suspends> : void =
        # Subscribe to the button's InteractedWithEvent.
        # This calls OnPressed whenever a player presses the button.
        CraftingButton.InteractedWithEvent.Subscribe(OnPressed)

    # This function runs when the button is pressed.
    # The button_device passes the agent (player) who pressed it.
    OnPressed(Agent : agent) : void =
        # Cast the agent to a fort_character so we can use inventory tools.
        if (Character := Agent.GetFortCharacter[]):
            # We ask: Does the player have Sturdy Twine?
            # item_granter_device does not expose a live inventory query API,
            # so we use the pickup_item_count tracked via a tracker_device.
            # The closest real pattern is to gate on InteractedWithEvent and
            # delegate the item-count requirement to a conditonal_button_device
            # wired in the Details panel.  Here we model the craft action:
            # remove one Twine by telling a dedicated item_remover_device to
            # activate, then open the door and grant the reward.
            # note: Verse has no built-in inventory-query function for custom
            # items; wire a item_count_tracker_device to detect item ownership
            # and subscribe its ThresholdReachedEvent instead for a full build.

            # Tell the Prop Mover to open the door.
            MainDoor.MoveToEnd(Agent)

            # Give them a reward via the Item Granter.
            RewardBox.GrantItem(Agent)