server.js

"use strict";

//var tempo = 120;
//var interval = 1000.0 * 60.0 / (tempo * 4.0);
var http = require("http");
var fs = require("fs");
var path = require('path');

// Chargement du fichier index.html affiché au client
var server = http.createServer(function (request, response) {
    console.log('(server) (ip ' + request.connection.remoteAddress + ') request starting: ' + request.url);

    var filePath = '.' + request.url;
    // hack to strip nasty facebook metadata
    if (filePath == './' || filePath.startsWith('./?fbclid'))
        filePath = './index.html';

    var extname = path.extname(filePath);
    var contentType = 'text/html';
    switch (extname) {
        case '.js':
            contentType = 'text/javascript';
            break;
        case '.css':
            contentType = 'text/css';
            break;
        case '.json':
            contentType = 'application/json';
            break;
        case '.png':
            contentType = 'image/png';
            break;
        case '.jpg':
            contentType = 'image/jpg';
            break;
        case '.wav':
            contentType = 'audio/wav';
            break;
    }

    fs.readFile(filePath, function(error, content) {
        if (error) {
            if(error.code == 'ENOENT'){
                fs.readFile('./404.html', function(error, content) {
                    response.writeHead(200, { 'Content-Type': contentType });
                    response.end(content, 'utf-8');
                });
            }
            else {
                response.writeHead(500);
                response.end('Error: '+error.code+' ..\n');
                response.end();
            }
        }
        else {
            response.writeHead(200, { 'Content-Type': contentType });
            response.end(content, 'utf-8');
        }
    });

});

// Chargement de socket.io
var io = require("socket.io").listen(server);
var players = [];

function Player(id) {
    this.id = id;
}

io.on("connection", function(socket) {
    let player = new Player(socket.id);
    players.push(player);

    console.log("Player " + player.id + " connected");
    console.log(players);

    socket.broadcast.emit("dumpRequest", player.id);

    socket.on("dumpOutInitial", function(data) {
        // server recieves an initial dump from a new player and retransmits it to old players
        socket.broadcast.emit("dumpInInitial", data);

        console.log("Recieved initial dump from player " + data[0]);
        console.log(players);
    });

    socket.on("dumpOutRequested", function([data, target]) {
        io.to(target).emit("dumpInRequested", data);

        console.log("Recieved requested dump from " + data[0] + " with target " + target);
    })

    socket.on("setPhraseRequest", function(target, phrase) {
        socket.broadcast.emit("setPhraseRequest", target, phrase);

        console.log("Recieved set phrase request for " + target + " with phrase " + phrase);
    });

    socket.on("nextPhraseRequest", function(target) {
        socket.broadcast.emit("nextPhraseRequest", target);

        console.log("Recieved next phrase request for " + target);
    });

    socket.on("prevPhraseRequest", function(target) {
        socket.broadcast.emit("prevPhraseRequest", target);

        console.log("Recieved prev phrase request for " + target);
    });

    socket.on("restartPhraseRequest", function(target) {
        socket.broadcast.emit("restartPhraseRequest", target);

        console.log("Recieved restart phrase request for " + target);
    });

    socket.on("octaveUpRequest", function(target) {
        socket.broadcast.emit("octaveUpRequest", target);

        console.log("Recieved octave up request for " + target);
    });

    socket.on("octaveDownRequest", function(target) {
        socket.broadcast.emit("octaveDownRequest", target);

        console.log("Recieved octave down request for " + target);
    });

    socket.on("disconnect", function() {
        players.splice(players.indexOf(player), 1);
        io.emit("remove", player.id);

        console.log("Player " + player.id + " disconnected");
        console.log(players);
    });
});

function timeout() {
    setTimeout(function () {
        timeout();
        io.emit("tick");
    }, 125);
}

timeout();

server.listen(8080);

console.log("Server started successfully");