Laravel/Blade: Get iteration index from blade template

I have a view with the following loops

@foreach ($displayRooms as $room => $events)
    @foreach ($events as $event)
        @include('partials.event', ['event' => $event, 'room' => $room, 'active' => $loop->first])
    @endforeach
@endforeach

Then i have the following partial view with the following code

<div class="carousel-item ">
    <div class="card text-center">
        <h3 class="card-header">Happening </h3>
        <div class="card-block">
            <ul>
                <li><h3 class="card-title"></h3></li>
                @if (empty($event))
                    <li><h3 class="card-title"></h3></li>
                @else
                @if ($event->available)
                    <li><h3 class="card-title"></h3></li>

                @else
                    <li><h3 class="card-title"></h3></li>
                    <li><h3 class="card-title"> - </h3></li>
                    <li><h3 class="card-title"> - </h3></li>
                @endif
                @endif
            </ul>
        </div>
    </div>
</div>

What i need is the following

<div class="carousel-item ">

In order to se the class of active to a carousel item, it has to be the first iteration from the above loop.

How could I go about obtaining the first loop index so that I may set it inside of the @include.

Make sense?

via Zach Tackett