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

# This is our main script.
# It manages a Trigger Device and a Speaker Device placed in the world.
dj_booth := class(creative_device):

    # Drag your Audio Player Device into this property slot in the UEFN editor.
    @editable
    Speaker : audio_player_device = audio_player_device{}

    # Drag your Trigger Device into this property slot in the UEFN editor.
    @editable
    Trigger : trigger_device = trigger_device{}

    # We create a variable to track whether the music is currently playing.
    # var means its value can change — this is our "light switch."
    var MusicPlaying : logic = false

    # OnBegin runs once when the island starts. We wire up our events here.
    OnBegin<override>()<suspends> : void =
        # Subscribe to the trigger's triggered event.
        # These act as our tripwires.
        Trigger.TriggeredEvent.Subscribe(OnPlayerEnter)

    # This event happens when a player triggers the Trigger Device.
    # It is like a tripwire.
    OnPlayerEnter(MaybeAgent : ?agent) : void =
        # Only start the music if it is not already playing.
        if (MusicPlaying = false):
            # This line plays the music!
            # We tell the speaker to start playing.
            Speaker.Play()
            set MusicPlaying = true
            Print("The beat is dropping!")
        else:
            # Only stop the music if it is currently playing.
            # This line stops the music.
            Speaker.Stop()
            set MusicPlaying = false
            Print("The concert is over.")