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

# This is our main script block
SpookyCandyDevice := class(creative_device):

    # This is the Item Granter device
    # We connect it in the editor
    @editable
    CandyMachine : item_granter_device = item_granter_device{}

    # This is the Trigger device
    # We connect it in the editor
    @editable
    PlayerTrigger : trigger_device = trigger_device{}

    # This is the list of all candies
    # Each entry is an item_granter_device set up in the editor
    # to grant a specific candy type via its Item setting
    # note: Verse has no built-in candy item enum; candy type is
    # configured per-device in the editor, so we use one
    # item_granter_device per candy and pick among them randomly.
    @editable
    CandyGranters : []item_granter_device = array{}

    # OnBegin runs once when the game starts
    OnBegin<override>()<suspends> : void =
        # Subscribe to the trigger's agent-enters event
        PlayerTrigger.TriggeredEvent.Subscribe(OnEnter)

    # This function runs when a player enters the trigger
    OnEnter(Instigator : ?agent) : void =
        # Make sure we have at least one granter configured
        if (CandyGranters.Length > 0):
            # Pick a random index from the list
            RandomIndex := GetRandomInt(0, CandyGranters.Length - 1)
            # Look up the chosen granter; bracket access is failable
            if (SelectedGranter := CandyGranters[RandomIndex]):
                # Give the candy to the triggering agent if present
                if (TheAgent := Instigator?):
                    SelectedGranter.GrantItem(TheAgent)