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

# This is our main script. It runs the show.
# creative_device is the real base class for Verse devices in UEFN.
secret_room_manager := class(creative_device):

    # We need a reference to the door.
    # In Verse, we call things "variables".
    # A variable is like a box that holds a value.
    # Wire this PropMoverDevice in the UEFN Details panel.
    @editable
    Door : prop_mover_device = prop_mover_device{}

    # We need a reference to the Player Counter device.
    # Wire this PlayerCounterDevice in the UEFN Details panel.
    @editable
    Counter : player_counter_device = player_counter_device{}

    # We need a reference to the Trigger device that watches the zone.
    # Wire this TriggerDevice in the UEFN Details panel.
    @editable
    ZoneTrigger : trigger_device = trigger_device{}

    # OnBegin runs when the game starts.
    OnBegin<override>()<suspends> : void =
        # Subscribe to the trigger so we know when a player enters the zone.
        # TriggeredEvent fires each time an agent steps into the trigger volume.
        ZoneTrigger.TriggeredEvent.Subscribe(OnZoneTriggered)

    # This function fires when a player enters the zone.
    # An event is like a trigger. It happens at a specific moment.
    # agent? is the player who walked in — it may be false if no agent caused it.
    OnZoneTriggered(Agent : ?agent) : void =
        # Ask the counter how many players are in the zone.
        # This is like asking a question.
        # # note: player_counter_device exposes CurrentCount:int as a readable property.
        Count := Counter.GetCurrentCount[]

        # Check if the count is 3 or more.
        # This is a "condition". It is like a fork in the road.
        if (Count >= 3):
            # If true, open the door!
            # We send a signal to the door.
            Door.MoveToEnd()
            Print("Door is open! Welcome to the club!")
        else:
            # If false, keep the door closed.
            Print("Need more friends! Keep counting...")