mobile-drums/room.html at master · freegeeks/mobile-drums · GitHub

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<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="This is a mobile machine drum to play with friends in the same room. Admin can control intruments in the peers mobile devices.">
    <meta name="keywords" content="mobile machine drum, mobile, machine, drum, machine drum, play, friend, friends">
    <meta name="author" content="Free Geeks a.k.a. RRR">
	<title>MobileDrums</title>
	<link rel="stylesheet" href="css/reset.css" type="text/css" media="screen">
	<link rel="stylesheet" href="css/styles.css" type="text/css" media="screen">
    <link href='http://fonts.googleapis.com/css?family=Dosis' rel='stylesheet' type='text/css'>
    <meta name="viewport" content="width=320; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>

</head>
<body>
<header>
<h1>Mobile Machine Drum</h1>
<p>invite your drums:</p>
<em>url: <span>...</span></em>
<audio src="/snd/coin.wav" controls="controls"></audio>
</header>
<ul id="instruments">
    <li class="instrument active a" data-color="#7c0900" data-name="hit-hat" data-sound="HH_2_closed_a"><span></span></li>
    <li class="instrument active b" data-color="#c95624" data-name="kick"    data-sound="Kick_Reg_1a"><span></span></li>
    <li class="instrument active c" data-color="#ddaa1d" data-name="snare"   data-sound="Snare_Reg_1a"><span></span></li>
    <li class="instrument active d" data-color="#2d6600" data-name="tom"     data-sound="Tom_Hi"><span></span></li>
    <li class="instrument active e" data-color="#305ebd" data-name="ride"    data-sound="Ride_Side"><span></span></li>
    <li class="instrument active f" data-color="#730096" data-name="stick"   data-sound="Stick"><span></span></li>
</ul>

<ul class="patterns">
<li class="pattern" data-pattern="pattern1"><a href="#">Drum'n'Bass</a></li>
<li class="pattern" data-pattern="pattern2"><a href="#">breakbeat</a></li>
<li class="pattern" data-pattern="pattern3"><a href="#">jungle</a></li>
</ul>


<script src="/socket.io/socket.io.js"></script>
<script>
/*
 * Add JS here at the bottom of the page
 * to avoid the whole document.ready since
 * we are not using jquery
 */

// Single DOM element selection
window.$ = function(selector) {
  return document.querySelector(selector);
};

// Multiple DOM element selection
window.$$ = function(selector) {
    var items   = {};
    var results = Array.prototype.slice.call(document.querySelectorAll(selector));
    var length  = results.length;

    for (var i = 0 ; i < length; i++) {
        items[i] = results[i];
    }

    items.length = length;
    items.splice = [].splice();

    items.each = function(callback) {
        for (var i = 0 ; i < length; i++) {
            callback.call(items[i]);
        }
    };

    items.on = function (event, fn) {
        []['forEach'].call(this, function (el) {
            el.on(event, fn);
        });
        return this;
    };

    return items;
};

// Bind event using "on"
Element.prototype.on = Element.prototype.addEventListener;
Element.prototype.trigger = function (type, data) {
    var event = document.createEvent('HTMLEvents');
    event.initEvent(type, true, true);
    event.data = data || {};
    event.eventName = type;
    event.target = this;
    this.dispatchEvent(event);
    return this;
};

var MachineDrums = function() {
    var self = this;

    // Config options
    self.server = {
        hostname: 'mobiledrums.freegeeks.nl',
        port    : 80
    };
    // self.server.hostname = 'mobiledrums.freegeeks.local';
    // self.server.port = 3000;

    self.animationTime = 150; // milliseconds

    // Current sound
    self.sound = null;

    // Get each sound from the drums
    self.sounds = {};
    $$('.instrument').each(function() {
        self.sounds[this.dataset.sound] = this;

        // Paint the instruments with its own color
        // and adds the text inside it
        this.innerHTML = '<a href="javascript:;" style="background-color: ' + this.dataset.color + ';">' + this.dataset.name + '</a>';
    });

    // Define room name
    self.room = location.pathname;

    // Update placeholder
    var port = (self.server.port !== 80) ? ':' + self.server.port : '';
    $('em span').innerHTML = 'http://' + self.server.hostname + port + self.room;

    // Handle the socket communication
    var socketHandler = function() {
        // Connect
        self.socket = io.connect('http://' + self.server.hostname, self.server.port);

        // Join the room
        self.socket.on('connect', function() {
            self.socket.emit('join', self.room);
        });
        self.socket.on('role', function(role) {
            $('body').classList.remove('adm');
            $('body').classList.remove('cli');
            $('body').classList.add(role);

            if (role == 'adm') {
                self.roleAsAdmin();
            } else {
                self.roleAsInstrument();
            }
        });

        // Listen to the HIT
        self.socket.on('hit', function(sound) {
            // Only play audio if selected sound
            self.hit(sound, (self.sound === sound));
        });
    };
    socketHandler();

    return this;
};

MachineDrums.prototype.roleAsAdmin = function() {
    var self = this;

    // Set as admin and enable controls
    $('p').innerHTML = 'invite your drums:';

    // Listen to the STATS update
    self.socket.on('instrument', function(data) {
        // TODO this was copied from the painted can be reused
        $$('.instrument').each(function () {
            this.classList.add('active');
            if (!data[this.dataset.sound]) {
                // show button as disabled
                this.classList.remove('active');
                // created index in the object with ZERO
                data[this.dataset.sound] = 0;
            }
            // update the contents of the button
            this.innerHTML = '<a style="background-color: ' + this.dataset.color + ';">' + this.dataset.name + ' <b>' + data[this.dataset.sound] + '</b></a>';
        });
    });

    // Once select the instrument
    $$('.instrument').on('click', function () {
        // Send the hit to server
        self.socket.emit('hit', { room: self.room, sound: this.dataset.sound });
    });

    // Show Patterns
    $('.patterns').style.display = '';

    // On each pattern
    $$('.pattern').on('click', function () {
        this.classList.toggle('active');

        // Always stop the pattern
        self.socket.emit('stop');

        if (!this.classList.contains('active')) {
            return;
        }

        var patterns = {
            'pattern1': {
                tempo: 180,
                pattern: [
                    [ 'Kick_Reg_1a', 'HH_2_closed_a' ],
                    null,
                    [ 'HH_2_closed_a' ],
                    null,
                    [ 'Snare_Reg_1a', 'HH_2_closed_a' ],
                    null,
                    [  'HH_2_closed_a' ],
                    null,
                    [ 'HH_2_closed_a' ],
                    null,
                    [ 'Kick_Reg_1a' ],
                    null,
                    [ 'Snare_Reg_1a'],
                    [ 'Kick_Reg_1a' ],
                    null,
                    null
                ]
            },
            'pattern2': {
                tempo: 150,
                pattern: [
                    [ 'Tom_Hi', 'Ride_Side' ],
                    null,
                    [ 'Stick' ],
                    null,
                    [ 'Ride_Side', 'Stick' ],
                    [ 'Tom_Hi' ],
                    [  'Kick_Reg_1a', 'Tom_Hi' ],
                    null,
                    [ 'Kick_Reg_1a' ],
                    null,
                    [ 'Snare_Reg_1a' ],
                    null,
                    [ 'HH_2_closed_a', 'Ride_Side' ],
                    [ 'Snare_Reg_1a' ],
                    null,
                    null
                ]
            },
            'pattern3': {
                tempo: 180,
                pattern: [
                    [ 'Kick_Reg_1a', 'HH_2_closed_a' ],
                    null,
                    [ 'HH_2_closed_a' ],
                    null,
                    [ 'Snare_Reg_1a', 'HH_2_closed_a' ],
                    null,
                    [  'HH_2_closed_a' ],
                    null,
                    [ 'HH_2_closed_a' ],
                    null,
                    [ 'Kick_Reg_1a' ],
                    null,
                    [ 'Snare_Reg_1a'],
                    [ 'Kick_Reg_1a' ],
                    null,
                    null
                ]
            }
        };
        var pattern = patterns[this.dataset.pattern];

        self.socket.emit('start', { room: self.room, tempo: pattern.tempo, pattern: pattern.pattern });
    });

    function keyboard (e) {
        var map = {
            49: 'hit-hat',
            50: 'kick',
            51: 'snare',
            52: 'tom',
            53: 'ride',
            54: 'stick'
        };
        if (map[e.keyCode]) {
            $('.instrument[data-name="' + map[e.keyCode] + '"]').trigger('click');
        }
    }

    window.addEventListener('keydown', keyboard, false);
};

MachineDrums.prototype.roleAsInstrument = function() {
    var self = this;

    // Set as instrument and disable controls
    $('p').innerHTML = 'select your beat and share:';

    // Once select the instrument
    $$('.instrument a').each(function() {
        var handleClick = function(event) {
            event.preventDefault();

            var node  = this.parentNode;
            var color = node.dataset.color;
            var sound = node.dataset.sound;

            // activate only one instrument
            $$('.instrument').each(function () {
                this.classList.remove('active');
            });
            this.parentNode.classList.add('active');

            // Mark the selected sound
            self.sound = sound;

            // Load selected audio
            self.audio = $('audio');
            self.audio.controls = 'controls';
            self.audio.src = 'http://' + self.server.hostname + ':' + self.server.port + '/snd/' + sound + '.wav';
            self.audio.load();
            self.audio.play();
            self.audio.pause();

            // Once audio finished playing
            self.audio.on('ended', function () {
                // Do something?
            });

            // Inform the server the instrument
            self.socket.emit('instrument', { room: self.room, sound: sound });
        };

        this.on('click', handleClick);
        this.on('touchstart', handleClick);
    });

    // Hide Patterns
    $('.patterns').style.display = 'none';
};

MachineDrums.prototype.hit = function(sound, makeSound) {
    var self = this;

    // Get instrument element
    var el = self.sounds[sound];

    if (makeSound) {
        self.audio.currentTime = 0;
        self.audio.play();
    }
    el.classList.add('hit');

    window.setTimeout(function() {
        el.classList.remove('hit');
    }, self.animationTime);
};

var instance = new MachineDrums();

</script>
<script>
 var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-41306693-1']);
  _gaq.push(['_trackPageview']);
  _gaq.push(['_setDomainName', '.mobiledrums.freegeeks.nl']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();
</script>
</body>
</html>