Mario/server.js

require('babel-polyfill');
const express = require('express'),
    app = express(),
    server = require('http').createServer(app),
    io = require('socket.io')(server, {
        // wsEngine: 'ws'
    }),
    exphbs = require('express-handlebars'),
    qrCode = require('branded-qr-code');

/** CONSTANTS */
const HOST = 'http://100.119.37.224:8080/client/';

const players = [
    {
        type: 'mario',
        id: guid(),
        score: 0
    },
    {
        type: 'luigi',
        id: guid(),
        score: 0
    },
]
console.log(players);



app.set('views', 'src/views');
app.engine('.hbs', exphbs({
    extname: '.hbs',
}));
app.set('view engine', '.hbs');

server.listen(8080, function () {
    console.log('Listening on *:' + this.address().port);
});


app.get('/assets*', (req, res) => {
    if (req.originalUrl.includes('qr.png')) {
        const isMario = req.originalUrl.includes('mario');
        qrCode.generate({
            text: HOST + players[isMario ? 0 : 1].id,
            path: __dirname + '/assets/' + (isMario ? 'mario.png' : 'luigi.png'),
            ratio: 4,
            opt: {
                errorCorrectionLevel: 'H',
                width: 500,
            },
        }).then(qr => {
            res.send(qr);
        });

    }
    else if (!req.originalUrl.includes('.map'))
        res.sendFile(__dirname + req.originalUrl.split('?')[0]);
});

app.get(['/', '/index.html'], (req, res) => {
    res.render('server', {
        layout: false,
        marioURL: HOST + players[0].id,
        luigiURL: HOST + players[1].id,
        marioId: players[0].id,
        luigiId: players[1].id,
    });
});

app.get('/client/:id', (req, res) => {
    console.log(req.params.id);
    if (req.params.id == players[0].id || req.params.id == players[1].id)
        res.render('client', {
            layout: false,
            id: getPlayerFromId(req.params.id).id,
            type: getPlayerFromId(req.params.id).type,
        });
    else
        res.render('error', { layout: false });
});

const monitorNSP = io.of('/monitor');
const clientNSP = io.of('/client');

let count = 0;

clientNSP.on('connection', socket => {
    let id = socket.request.headers.referer.split('/').slice(-1)[0];
    if (!getPlayerFromId(id)) { console.error('Wrong ID'); return; }
    console.log('Client connected.');
    monitorNSP.emit('clientConnect', getPlayerFromId(id).type);
    count++;
    if (count === 2)
        setTimeout(() => monitorNSP.emit('updateGameState', 1), 2000);

    let pl = getPlayerFromId(socket.request.headers.referer.split('/').slice(-1)[0]);
    socket.on('moveStart_left', () => {
        console.log('moveStart_left: ' + pl.type);
        monitorNSP.emit('moveStart_left', pl.type);
    });
    socket.on('moveStart_right', () => {
        console.log('moveStart_right: ' + pl.type);
        monitorNSP.emit('moveStart_right', pl.type);
    });
    socket.on('moveStart_jump', () => {
        console.log('moveStart_jump: ' + pl.type);
        monitorNSP.emit('moveStart_jump', pl.type)
    });
    socket.on('moveStart_crouch', () => {
        console.log('moveStart_crouch: ' + pl.type);
    });
    socket.on('moveEnd_left', () => {
        console.log('moveEnd_left: ' + pl.type);
        monitorNSP.emit('moveEnd_left', pl.type);
    });
    socket.on('moveEnd_right', () => {
        console.log('moveEnd_right: ' + pl.type);
        monitorNSP.emit('moveEnd_right', pl.type);
    });
    socket.on('moveEnd_jump', () => {
        console.log('moveEnd_jump: ' + pl.type);
    });
    socket.on('moveEnd_crouch', () => {
        console.log('moveEnd_crouch: ' + pl.type);
    });


    socket.on('disconnect', () => {
        console.log('Client disconnected.');
        monitorNSP.emit('clientDisconnect', getPlayerFromId(id).type);
    });
});


monitorNSP.on('connection', socket => {
    console.log('Monitor connected.');

    socket.on('disconnect', () => {
        console.log('Monitor disconnected.');
    });
});

function getPlayerFromId(id) {
    return players.filter(el => el.id == id)[0];
}

function guid() {
    function s4() {
        return Math.floor((1 + Math.random()) * 0x10000)
            .toString(16)
            .substring(1);
    }
    return s4() + s4() + '-' + s4() + '-' + s4() + '-' + s4() + '-' + s4() + s4() + s4();
}