tilttek/bingo

A game draws its cards from a pool of squares: "attend a talk", "visit the dice booth", "roll a natural 20". Each player gets a card of their own, unlike every other card of the game, drawn from a secret of the server alone: the seed of card n is the HMAC-SHA256 of the game and the serial under the secret, so the same card is drawn again from its serial — a printed card is checked by its number — and no player can tell the cards of others or choose their own.

A convention's card is ticked by what the player does: each square names the gesture that ticks it, by verb and maybe object, and the server ticks the card as the activity journal of tilttek/activity records the gestures, then unticks it when a gesture is cancelled. A completed pattern wins on its own. A session's card is ticked by the host, who calls squares for every card at once; a card wins when its player claims it and the server finds a pattern among the squares called. Either way, the player never ticks a card nor declares a win: the server checks the card against its seed and its ticks. A session's cards may also be printed in batches: each shows a label, its serial and a check code drawn from the secret, which the organiser types to check the card of whoever shouts.

The patterns are a row, a column, a diagonal, the full card, the four corners, or the application's own. A win dispatches BingoWon; the card template and its Stimulus controller turn it into the DOM event bingo:won, which the celebration of the PHIL UX kit plays on; the calls, the wins and the ticks reach the players' screens through Mercure. It is a plain PHP library whose dependencies are tilttek/activity, psr/clock and psr/event-dispatcher; symfony/mercure is needed only for the live updates.

Status

Documentation

Quick start

use Tilttek\Bingo\{Bingo, CardDealer, Grid, Square, SquarePool, Trigger, WinPatterns};
use Tilttek\Bingo\Activity\BingoActivityObserver;
use Tilttek\Bingo\Store\InMemoryBingoStore;

$bingo = new Bingo(new InMemoryBingoStore(), new CardDealer($secret), $dispatcher, $clock);

$grid = new Grid(5);                                      // 5 × 5, free centre
$bingo->create('con-2026', new SquarePool([
    new Square('talk', 'Attend a talk', new Trigger('talk.attended')),
    new Square('dice-booth', 'Visit the dice booth', new Trigger('booth.visited', 'booth:dice')),
    // ... at least 24 squares
]), $grid, WinPatterns::line($grid));

$card = $bingo->deal('con-2026', 'member:44');           // the same card on every call
$journalObservers[] = new BingoActivityObserver($bingo); // gestures tick, a line wins: BingoWon

Requirements

PHP 8.5 or later; tilttek/activity 0.1, psr/clock and psr/event-dispatcher. The templates need Twig, and the controller Stimulus, only where the application uses them; the live updates need symfony/mercure.

Contributing

Contributions are welcome on the PHIL monorepo: read the contribution guide and the code of conduct. Report a vulnerability privately, as the security policy explains, never in a public issue.

License

MIT, © Philippe Gamache, doing business as Le Gnome Archiviste; a Tilttek project. See LICENSE.