The third portion of the frontend code for the socket.io blog tutorial.

blogpost-socketio-backend-part3

var playernum = 0;
io.sockets.on('connection', function (socket) {
    console.log('connected successfully...');

    playernum === 1 ? playernum = 0 : playernum++;

    socket.emit('player', {'player': playernum});

    socket.on('volley', function (input) {
        socket.broadcast.emit('return', {'data': 1});
    });
});