Airship\Engine\Gadgets::unloadNextCargo PHP Method

    public static function unloadNextCargo(string $name)
    {
        $state = State::instance();
        $iterate = $state->cargoIterator;
        if (isset($iterate[$name])) {
            ++$iterate[$name];
            $cargo = self::unloadCargo($name, $iterate[$name]);
            $state->cargoIterator = $iterate;
            return $cargo;
        }
        return [];
    }