# We import the tools we need from Fortnite.
using { /Fortnite.com/Devices }
using { /Fortnite.com/Game }
using { /Fortnite.com/Characters }
using { /Verse.org/Simulation }

# This is our keycard door manager device.
# It lives alongside a door_device placed on the island.
keycard_door_manager := class(creative_device):

    # Wire this to the Door device in the UEFN editor.
    @editable
    Door : lock_device = lock_device{}

    # Wire this to the Item Spawner device in the UEFN editor.
    @editable
    KeycardSpawner : item_spawner_device = item_spawner_device{}

    # OnBeginPlay runs once when the game starts.
    OnBeginPlay()<override>() : void =
        # We print a message to the console.
        # This helps us know the code is running.
        Print("The door is waiting for a keycard.")

        # We listen for the item spawner's pickup event.
        # When a player picks up the keycard, we fire our check.
        KeycardSpawner.ItemPickedUpEvent.Subscribe(OnKeycardPickedUp)

    # This function runs when a player picks up the item from the spawner.
    OnKeycardPickedUp(Agent : agent) : void =
        # Cast agent to fort_character so we can use player APIs.
        if (Character := Agent.GetFortCharacter[]):
            Print("Keycard picked up! Opening the door.")
            # Open the door for the agent who picked up the keycard.
            Door.Open(Agent)
        else:
            Print("Something picked up the keycard, but it was not a player.")