A Pen by Matt Porter.

HTML5-Beat-Studio.markdown

HTML5 Beat Studio

A Pen by Matt Porter on CodePen.

License.

index.html

<link href='http://fonts.googleapis.com/css?family=Lobster' rel='stylesheet' type='text/css'>
<link href="http://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet" type="text/css"/>

<div id="outter">
  <div id="inner">
    <div id="launcher">
      <div id="title">BeatStudio <span class="red">9</span><span class="yellow">0</span><span class="blue">0</span><span class="purple">0</span></div>
      <div id="countRow">
        <li class="numbers red">1</li>
        <li class="numbers red">2</li>
        <li class="numbers red">3</li>
        <li class="numbers red">4</li>
        <li class="numbers yellow">5</li>
        <li class="numbers yellow">6</li>
        <li class="numbers yellow">7</li>
        <li class="numbers yellow">8</li>
        <li class="numbers blue">9</li>
        <li class="numbers blue">10</li>
        <li class="numbers blue">11</li>
        <li class="numbers blue">12</li>
        <li class="numbers purple">13</li>
        <li class="numbers purple">14</li>
        <li class="numbers purple">15</li>
        <li class="numbers purple">16</li>
      </div>
      <div id="kickRow">
        <li class="kickBlockON" id="clip" name="1" onclick="player.update(1,1);"></li> 
        <li class="kickBlockOFF" id="clip" name="2" onclick="player.update(1,2);"></li>  
        <li class="kickBlockON" id="clip" name="3" onclick="player.update(1,3);"></li>  
        <li class="kickBlockOFF" id="clip" name="4" onclick="player.update(1,4);"></li>  
        <li class="kickBlockOFF" id="clip" name="5" onclick="player.update(1,5);"></li>  
        <li class="kickBlockOFF" id="clip" name="6" onclick="player.update(1,6);"></li>  
        <li class="kickBlockON" id="clip" name="7" onclick="player.update(1,7);"></li>  
        <li class="kickBlockOFF" id="clip" name="8" onclick="player.update(1,8);"></li>  
        <li class="kickBlockOFF" id="clip" name="9" onclick="player.update(1,9);"></li>  
        <li class="kickBlockOFF" id="clip" name="10" onclick="player.update(1,10);"></li>  
        <li class="kickBlockON" id="clip" name="11" onclick="player.update(1,11);"></li>  
        <li class="kickBlockOFF" id="clip" name="12" onclick="player.update(1,12);"></li>  
        <li class="kickBlockOFF" id="clip" name="13" onclick="player.update(1,13);"></li>  
        <li class="kickBlockOFF" id="clip" name="14" onclick="player.update(1,14);"></li>  
        <li class="kickBlockON" id="clip" name="15" onclick="player.update(1,15);"></li>  
        <li class="kickBlockOFF" id="clip" name="16" onclick="player.update(1,16);"></li> 
      </div>
      <div id="snareRow">
        <li class="snareBlockOFF" id="clip" name="1" onclick="player.update(2,1);"></li>  
        <li class="snareBlockOFF" id="clip" name="2" onclick="player.update(2,2);"></li>  
        <li class="snareBlockOFF" id="clip" name="3" onclick="player.update(2,3);"></li>  
        <li class="snareBlockOFF" id="clip" name="4" onclick="player.update(2,4);"></li>  
        <li class="snareBlockON" id="clip" name="5" onclick="player.update(2,5);"></li>  
        <li class="snareBlockOFF" id="clip" name="6" onclick="player.update(2,6);"></li>  
        <li class="snareBlockOFF" id="clip" name="7" onclick="player.update(2,7);"></li>  
        <li class="snareBlockOFF" id="clip" name="8" onclick="player.update(2,8);"></li>  
        <li class="snareBlockOFF" id="clip" name="9" onclick="player.update(2,9);"></li>  
        <li class="snareBlockOFF" id="clip" name="10" onclick="player.update(2,10);"></li>  
        <li class="snareBlockOFF" id="clip" name="11" onclick="player.update(2,11);"></li>  
        <li class="snareBlockOFF" id="clip" name="12" onclick="player.update(2,12);"></li>  
        <li class="snareBlockON" id="clip" name="13" onclick="player.update(2,13);"></li>  
        <li class="snareBlockOFF" id="clip" name="14" onclick="player.update(2,14);"></li>  
        <li class="snareBlockOFF" id="clip" name="15" onclick="player.update(2,15);"></li>  
        <li class="snareBlockOFF" id="clip" name="16" onclick="player.update(2,16);"></li>    
      </div>
      <div id="clapRow">
        <li class="clapBlockOFF" id="clip" name="1" onclick="player.update(3,1);"></li>  
        <li class="clapBlockOFF" id="clip" name="2" onclick="player.update(3,2);"></li>  
        <li class="clapBlockOFF" id="clip" name="3" onclick="player.update(3,3);"></li>  
        <li class="clapBlockOFF" id="clip" name="4" onclick="player.update(3,4);"></li>  
        <li class="clapBlockON" id="clip"  name="5" onclick="player.update(3,5);"></li>  
        <li class="clapBlockOFF" id="clip" name="6" onclick="player.update(3,6);"></li>  
        <li class="clapBlockOFF" id="clip" name="7" onclick="player.update(3,7);"></li>  
        <li class="clapBlockOFF" id="clip" name="8" onclick="player.update(3,8);"></li>  
        <li class="clapBlockOFF" id="clip" name="9" onclick="player.update(3,9);"></li>  
        <li class="clapBlockOFF" id="clip" name="10" onclick="player.update(3,10);"></li>  
        <li class="clapBlockOFF" id="clip" name="11" onclick="player.update(3,11);"></li>  
        <li class="clapBlockOFF" id="clip" name="12" onclick="player.update(3,12);"></li>  
        <li class="clapBlockON" id="clip"  name="13" onclick="player.update(3,13);"></li>  
        <li class="clapBlockOFF" id="clip" name="14" onclick="player.update(3,14);"></li>  
        <li class="clapBlockOFF" id="clip" name="15" onclick="player.update(3,15);"></li>  
        <li class="clapBlockOFF" id="clip" name="16" onclick="player.update(3,16);"></li>  
      </div>
      <div id="hatRow">
        <li class="hatBlockON" id="clip" name="1" onclick="player.update(4,1);"></li>  
        <li class="hatBlockON" id="clip" name="2" onclick="player.update(4,2);"></li>  
        <li class="hatBlockON" id="clip" name="3" onclick="player.update(4,3);"></li>  
        <li class="hatBlockON" id="clip" name="4" onclick="player.update(4,4);"></li>  
        <li class="hatBlockON" id="clip" name="5" onclick="player.update(4,5);"></li>  
        <li class="hatBlockON" id="clip" name="6" onclick="player.update(4,6);"></li>  
        <li class="hatBlockON" id="clip" name="7" onclick="player.update(4,7);"></li>  
        <li class="hatBlockON" id="clip" name="8" onclick="player.update(4,8);"></li>  
        <li class="hatBlockON" id="clip" name="9" onclick="player.update(4,9);"></li>  
        <li class="hatBlockON" id="clip" name="10" onclick="player.update(4,10);"></li>  
        <li class="hatBlockON" id="clip" name="11" onclick="player.update(4,11);"></li>  
        <li class="hatBlockON" id="clip" name="12" onclick="player.update(4,12);"></li>  
        <li class="hatBlockON" id="clip" name="13" onclick="player.update(4,13);"></li>  
        <li class="hatBlockON" id="clip" name="14" onclick="player.update(4,14);"></li>  
        <li class="hatBlockON" id="clip" name="15" onclick="player.update(4,15);"></li>  
        <li class="hatBlockON" id="clip" name="16" onclick="player.update(4,16);"></li>  
      </div>
      <div id="actionRow">
        <div id="playButton">
          Play
        </div>
      </div>
    </div>
    <div class="footer">
      The MIT License (MIT) -- Copyright (c) 2013 Matthew Porter
    </div>
  </div>
</div>

script.js

//
//  Made a custom little Beat Studio for you guys to mess around on.
//  Took me forever to make so please dont steal it :)
//
//  As always, MIT license. Enjoy!
//

/*
The MIT License (MIT)

Copyright (c) 2013 Matthew Porter

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/


$('li').each( function(index) {

  $(this).click( function(event) {

    var kick = new Audio('http://www.personal.psu.edu/mtp5129/audio/kick.wav'),  
        clap = new Audio('http://www.personal.psu.edu/mtp5129/audio/clap.wav'),
        hat = new Audio('http://www.personal.psu.edu/mtp5129/audio/hat.wav'),
        snare = new Audio('http://www.personal.psu.edu/mtp5129/audio/snare.wav');

    var target = $(event.target);
    if(target.attr('class') == 'kickBlockOFF') {
      target.attr('class', 'kickBlockON'); 
      kick.play(); 
    } else if(target.attr('class') == 'kickBlockON') {
      target.attr('class','kickBlockOFF');   
    }
    if(target.attr('class') == 'snareBlockOFF') {
      target.attr('class','snareBlockON');
      snare.play();   
    } else if(target.attr('class') == 'snareBlockON') {
      target.attr('class','snareBlockOFF');   
    }
    if(target.attr('class') == 'hatBlockOFF') {
      target.attr('class','hatBlockON');  
      hat.play(); 
    } else if(target.attr('class') == 'hatBlockON') {
      target.attr('class','hatBlockOFF');   
    }
    if(target.attr('class') == 'clapBlockOFF') {
      target.attr('class','clapBlockON');  
      clap.play();
    } else if(target.attr('class') == 'clapBlockON') {
      target.attr('class','clapBlockOFF');  
    }

  });
});

function rk(i) {
  if(i==1) {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/kick.wav');   
  } else {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/blank.wav');  
  }
}
function rs(i) {
    if(i==1) {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/snare.wav');   
  } else {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/blank.wav');  
  }
}
function rc(i) {
    if(i==1) {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/clap.wav');   
  } else {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/blank.wav');  
  }
}
function rh(i) {
  if(i==1) {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/hat.wav');   
  } else {
    return new Audio('http://www.personal.psu.edu/mtp5129/audio/blank.wav');  
  }
}

function BeatStudio(opts) {
  this.kArr = new Array(1,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0);
  this.sArr = new Array(0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0);
  this.cArr = new Array(0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0);
  this.hArr = new Array(1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1);
  this.bpm = opts.bpm;
  this.timeout = ((1/this.bpm)*60000)/2;
}

BeatStudio.prototype = {

  update: function(row, beat) {
    var type = row;
    var i = beat-1;

    if(type==1) {
      if(this.kArr[i] == 1) {
        this.kArr[i] = 0;  
      } else {
        this.kArr[i] = 1;  
      }
    }

    if(type==2) {
      if(this.sArr[i] == 1) {
        this.sArr[i] = 0;  
      } else {
        this.sArr[i] = 1;  
      }
    }

    if(type==3) {
      if(this.cArr[i] == 1) {
        this.cArr[i] = 0;  
      } else {
        this.cArr[i] = 1;  
      }
    }

    if(type==4) {
      if(this.hArr[i] == 1) {
        this.hArr[i] = 0;  
      } else {
        this.hArr[i] = 1;  
      }
    }

  },

  launch: function() {

    var kickTmp = this.kArr;
    var snareTmp = this.sArr;
    var clapTmp = this.cArr;
    var hatTmp = this.hArr;
    var timeout = this.timeout;

    // handles the actual beat below
    setTimeout(function(){
      rk(kickTmp[0]).play();  
      rs(snareTmp[0]).play();
      rc(clapTmp[0]).play();
      rh(hatTmp[0]).play();

    setTimeout(function(){ 
      rk(kickTmp[1]).play();  
      rs(snareTmp[1]).play();
      rc(clapTmp[1]).play();
      rh(hatTmp[1]).play();  

    setTimeout(function(){ 
      rk(kickTmp[2]).play();  
      rs(snareTmp[2]).play();
      rc(clapTmp[2]).play();
      rh(hatTmp[2]).play();

    setTimeout(function(){ 
      rk(kickTmp[3]).play();  
      rs(snareTmp[3]).play();
      rc(clapTmp[3]).play();
      rh(hatTmp[3]).play();

    setTimeout(function(){ 
      rk(kickTmp[4]).play();  
      rs(snareTmp[4]).play();
      rc(clapTmp[4]).play();
      rh(hatTmp[4]).play();

    setTimeout(function(){ 
      rk(kickTmp[5]).play();  
      rs(snareTmp[5]).play();
      rc(clapTmp[5]).play();
      rh(hatTmp[5]).play();

    setTimeout(function(){ 
      rk(kickTmp[6]).play();  
      rs(snareTmp[6]).play();
      rc(clapTmp[6]).play();
      rh(hatTmp[6]).play();

    setTimeout(function(){ 
      rk(kickTmp[7]).play();  
      rs(snareTmp[7]).play();
      rc(clapTmp[7]).play();
      rh(hatTmp[7]).play();

    setTimeout(function(){ 
      rk(kickTmp[8]).play();  
      rs(snareTmp[8]).play();
      rc(clapTmp[8]).play();
      rh(hatTmp[8]).play();

    setTimeout(function(){ 
      rk(kickTmp[9]).play();  
      rs(snareTmp[9]).play();
      rc(clapTmp[9]).play();
      rh(hatTmp[9]).play();

    setTimeout(function(){ 
      rk(kickTmp[10]).play();  
      rs(snareTmp[10]).play();
      rc(clapTmp[10]).play();
      rh(hatTmp[10]).play();

    setTimeout(function(){ 
      rk(kickTmp[11]).play();  
      rs(snareTmp[11]).play();
      rc(clapTmp[11]).play();
      rh(hatTmp[11]).play();

    setTimeout(function(){ 
      rk(kickTmp[12]).play();  
      rs(snareTmp[12]).play();
      rc(clapTmp[12]).play();
      rh(hatTmp[12]).play();

    setTimeout(function(){ 
      rk(kickTmp[13]).play();  
      rs(snareTmp[13]).play();
      rc(clapTmp[13]).play();
      rh(hatTmp[13]).play();

    setTimeout(function(){ 
      rk(kickTmp[14]).play();  
      rs(snareTmp[14]).play();
      rc(clapTmp[14]).play();
      rh(hatTmp[14]).play();

    setTimeout(function(){ 
      rk(kickTmp[15]).play();  
      rs(snareTmp[15]).play();
      rc(clapTmp[15]).play();
      rh(hatTmp[15]).play();
      
    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);  

    }, timeout); 

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, timeout);

    }, 0); 
    
  },

};

// Initiate new BeatStudio
var player = new BeatStudio({bpm: 140});

document.getElementById('playButton').addEventListener('click', function() {
  player.launch();
});

style.css

body {
  background: #666666;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  outline-style:none;/*IE*/
}
#outter {
  position: relative;
  display:inline-block;
  left: 50%;
}

#inner {
  position: relative;
  left: -50%;
}

#launcher {
  padding: 16px;
  background: #2d2d2d;
  margin: 50px 0;
  border: 1px solid rgba(1,1,1,0.35);
  box-shadow: 0 0 40px rgba(1,1,1,0.40),
    0 0 15px rgba(1,1,1,0.10);
}

.red {
  color: #f2777a; 
}

.yellow {
  color: #ffcc66; 
}

.blue {
  color: #66cccc;  
}

.purple {
  color: #cc99cc;  
}

#title {
  font-size: 36px;
  font-family: 'Lobster';
  color: #f0f0f0;
  text-shadow: 0 -1px 0 #000000,
    0 -2px 0 #000000,
    0 -2px 10px rgba(1,1,1,0.25);
  text-align: right;
  line-height: 48px;
  vertical-align: middle;
}

#actionRow {
  padding: 16px 0 0 0;
  height: 36px;
  display: block;
}

#playButton {
  display: inline;
  line-height: 36px;
  text-align: center;
  vertical-align: middle;
  font-size: 24px;
  color: #f0f0f0;
  font-family: 'Open Sans';
  background: #f2777a;
  box-shadow: 0 -1px 0 #000000,
    0 -2px 0 #000000,
    0 -2px 10px rgba(1,1,1,0.25);
  float: right;
  padding: 0 36px;
  outline: none;
  -webkit-animation-name: colors;  
  -webkit-animation-iteration-count: infinite;  
  -webkit-animation-timing-function: linear;  
  -webkit-animation-duration: 10s; 
}

@-webkit-keyframes colors {  
  25% {  
    background: #ffcc66;  
  }  
  50% {  
    background: #66cccc;  
  }
  75% {
    background: #cc99cc;  
  }
} 

#countRow {
  display: block;
  color: #f0f0f0;
}

#countRow .numbers{
  width: 36px;
  line-height: 26px;
  font-size: 14px;
  font-family: 'Open Sans';
  text-shadow: 0 -1px 0 rgba(1,1,1,1),
    0 -2px 0 rgba(1,1,1,1);
  text-align: center;
  display: inline-block;
}

#kickRow {
  display: block;
}

#kickRow .kickBlockON {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #f2777a;
}

#kickRow .kickBlockOFF {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #d2d2d2;
}

#kickRow .kickBlockOFF:hover {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #f2777a;
}

#snareRow {
  display: block;
}

#snareRow .snareBlockON {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #ffcc66;
}

#snareRow .snareBlockOFF:hover {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #ffcc66;
}

#snareRow .snareBlockOFF {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #d2d2d2;
}

#clapRow {
  display: block;
}

#clapRow .clapBlockON {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #66cccc;
}

#clapRow .clapBlockOFF {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #d2d2d2;
}

#clapRow .clapBlockOFF:hover {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #66cccc;
}

#hatRow {
  display: block;
}

#hatRow .hatBlockON {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #cc99cc;
}

#hatRow .hatBlockOFF {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #d2d2d2;
}

#hatRow .hatBlockOFF:hover {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: #cc99cc;
}

.footer {
  font-family: 'Open Sans';
  font-size: 12px;
  color: #2d2d2d;
  text-align: center;
}