+router.post('/move', (request, response) => {
+ const game = request.game;
+ const square = request.body.square;
+
+ const legal = game.add_move(square);
+
+ /* Inform this client whether the move was legal. */
+ response.send(JSON.stringify(legal));
+
+ /* And only if legal, inform all clients. */
+ if (! legal)
+ return;
+
+ game.broadcast_move(square);
+});
+
+router.get('/events', (request, response) => {
+ const game = request.game;
+
+ /* These headers will keep the connection open so we can stream events. */
+ const headers = {
+ "Content-type": "text/event-stream",
+ "Connection": "keep-alive",
+ "Cache-Control": "no-cache"
+ };
+ response.writeHead(200, headers);
+
+ /* Add this new client to our list of clients. */
+ const id = game.add_client(response);
+
+ /* And queue up cleanup to be triggered on client close. */
+ request.on('close', () => {
+ game.remove_client(id);
+ });
+});
+
+exports.router = router;
+exports.name = engine_name;
+exports.Game = TicTacToe;