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index.html
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<!DOCTYPE html>
<!--
"GRO" is a musical composition for web browsers.
-->
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<base href="https://badfrienddigital.github.io/gro/" />
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<meta name="apple-mobile-web-app-title" content="GRO">
<meta name="mobile-web-app-capable" content="yes">
<meta name="msapplication-starturl" content="/">
<link rel="apple-touch-icon" sizes="180x180" href="fav/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="fav/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="192x192" href="fav/android-chrome-192x192.png">
<link rel="icon" type="image/png" sizes="16x16" href="fav/favicon-16x16.png">
<link rel="manifest" href="manifest.json">
<link rel="mask-icon" href="fav/safari-pinned-tab.svg" color="#5bbad5">
<meta name="theme-color" content="#CCBBAA">
<title>GRO</title>
<meta name="description" content="Musical Composition For Web Browsers">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<meta property="og:title" content="GRO" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://badfrienddigital.github.io/gro" />
<meta property="og:image" content="https://badfrienddigital.github.io/gro/fav/android-chrome-256x256.png" />
</head>
<style>
/*
BEGIN Tachyons.io CSS (Cross-Browser Normalization)
*/
/**
* 1. Correct the text wrapping in Edge and IE.
* 2. Correct the color inheritance from `fieldset` elements in IE.
* 3. Remove the padding so developers are not caught out when they zero out
* `fieldset` elements in all browsers.
*/
legend {
-webkit-box-sizing: border-box;
box-sizing: border-box;
/* 1 */
color: inherit;
/* 2 */
display: table;
/* 1 */
max-width: 100%;
/* 1 */
padding: 0;
/* 3 */
white-space: normal;
/* 1 */
}
/**
* Remove the default vertical scrollbar in IE.
*/
textarea {
overflow: auto;
}
/**
* 1. Add the correct box sizing in IE 10-.
* 2. Remove the padding in IE 10-.
*/
[type='checkbox'], [type='radio'] {
-webkit-box-sizing: border-box;
box-sizing: border-box;
/* 1 */
padding: 0;
/* 2 */
}
/**
* Correct the cursor style of increment and decrement buttons in Chrome.
*/
[type='number']::-webkit-inner-spin-button, [type='number']::-webkit-outer-spin-button {
height: auto;
}
/**
* 1. Correct the odd appearance in Chrome and Safari.
* 2. Correct the outline style in Safari.
*/
[type='search'] {
-webkit-appearance: textfield;
/* 1 */
outline-offset: -2px;
/* 2 */
}
/**
* Remove the inner padding and cancel buttons in Chrome and Safari on OS X.
*/
[type='search']::-webkit-search-cancel-button, [type='search']::-webkit-search-decoration {
-webkit-appearance: none;
}
/**
* Correct the text style of placeholders in Chrome, Edge, and Safari.
*/
::-webkit-input-placeholder {
color: inherit;
opacity: 0.54;
}
/**
* 1. Correct the inability to style clickable types in iOS and Safari.
* 2. Change font properties to `inherit` in Safari.
*/
::-webkit-file-upload-button {
-webkit-appearance: button;
/* 1 */
font: inherit;
/* 2 */
}
/**
* Show the overflow in IE.
* 1. Show the overflow in Edge.
*/
button, input {
/* 1 */
overflow: visible;
}
/**
* Remove the inheritance of text transform in Edge, Firefox, and IE.
* 1. Remove the inheritance of text transform in Firefox.
*/
button, select {
/* 1 */
text-transform: none;
}
/**
* 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
* controls in Android 4.
* 2. Correct the inability to style clickable types in iOS and Safari.
*/
button, html [type='button'], /* 1 */
[type='reset'], [type='submit'] {
-webkit-appearance: button;
/* 2 */
}
/**
* Remove the inner border and padding in Firefox.
*/
button::-moz-focus-inner, [type='button']::-moz-focus-inner, [type='reset']::-moz-focus-inner, [type='submit']::-moz-focus-inner {
border-style: none;
padding: 0;
}
/**
* Restore the focus styles unset by the previous rule.
*/
button:-moz-focusring, [type='button']:-moz-focusring, [type='reset']:-moz-focusring, [type='submit']:-moz-focusring {
outline: 1px dotted ButtonText;
}
/**
* 1. Remove the bottom border in Firefox 39-.
* 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
*/
abbr[title] {
border-bottom: none;
/* 1 */
text-decoration: underline;
/* 2 */
text-decoration: underline dotted;
/* 2 */
}
/**
* Prevent the duplicate application of `bolder` by the next rule in Safari 6.
*/
b, strong {
font-weight: inherit;
}
/**
* Add the correct font weight in Chrome, Edge, and Safari.
*/
b, strong {
font-weight: bolder;
}
/**
* Add the correct font style in Android 4.3-.
*/
dfn {
font-style: italic;
}
/**
* Correct the font size and margin on `h1` elements within `section` and
* `article` contexts in Chrome, Firefox, and Safari.
*/
/*
h1 {
font-size: 2em;
margin: 0.67em 0;
}
*/
/**
* Add the correct background and color in IE 9-.
*/
mark {
background-color: #FFFF00;
color: #000000;
}
/**
* Add the correct font size in all browsers.
*/
small {
font-size: 80%;
}
/**
* Prevent `sub` and `sup` elements from affecting the line height in
* all browsers.
*/
sub, sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}
sub {
bottom: -0.25em;
}
sup {
top: -0.5em;
}
/* Embedded content
========================================================================== */
/**
* Remove the border on images inside links in IE 10-.
*/
img {
border-style: none;
}
/**
* Hide the overflow in IE.
*/
svg:not(:root) {
overflow: hidden;
}
/* Grouping content
========================================================================== */
/**
* 1. Correct the inheritance and scaling of font size in all browsers.
* 2. Correct the odd `em` font sizing in all browsers.
*/
code, kbd, pre, samp {
font-family: monospace, monospace;
/* 1 */
font-size: 1em;
/* 2 */
}
/**
* Add the correct margin in IE 8.
*/
figure {
margin: 1em 40px;
}
/**
* 1. Add the correct box sizing in Firefox.
* 2. Show the overflow in Edge and IE.
*/
hr {
-webkit-box-sizing: content-box;
box-sizing: content-box;
/* 1 */
height: 0;
/* 1 */
overflow: visible;
/* 2 */
}
/* Forms
========================================================================== */
/**
* 1. Change font properties to `inherit` in all browsers (opinionated).
* 2. Remove the margin in Firefox and Safari.
*/
button, input, optgroup, select, textarea {
font: inherit;
/* 1 */
margin: 0;
/* 2 */
}
/**
* Restore the font weight unset by the previous rule.
*/
optgroup {
font-weight: bold;
}
/**
* 1. Change the default font family in all browsers (opinionated).
* 2. Correct the line height in all browsers.
* 3. Prevent adjustments of font size after orientation changes in IE and iOS.
*/
html {
font-family: sans-serif;
/* 1 */
line-height: 1.15;
/* 2 */
-ms-text-size-adjust: 100%;
/* 3 */
-webkit-text-size-adjust: 100%;
/* 3 */
}
/**
* Remove the margin in all browsers (opinionated).
*/
body {
margin: 0;
}
/* HTML5 display definitions
========================================================================== */
/**
* Add the correct display in IE 9-.
* 1. Add the correct display in Edge, IE, and Firefox.
* 2. Add the correct display in IE.
*/
article, aside, details, /* 1 */
figcaption, figure, footer, header, main, /* 2 */
menu, nav, section, summary {
/* 1 */
display: block;
}
/**
* Add the correct display in IE 9-.
*/
audio, canvas, progress, video {
display: inline-block;
}
/**
* Add the correct display in iOS 4-7.
*/
audio:not([controls]) {
display: none;
height: 0;
}
/**
* Add the correct vertical alignment in Chrome, Firefox, and Opera.
*/
progress {
vertical-align: baseline;
}
/**
* Add the correct display in IE 10-.
* 1. Add the correct display in IE.
*/
template, /* 1 */
[hidden] {
display: none;
}
/* Links
========================================================================== */
/**
* 1. Remove the gray background on active links in IE 10.
* 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
*/
a {
background-color: transparent;
/* 1 */
-webkit-text-decoration-skip: objects;
/* 2 */
}
/**
* Remove the outline on focused links when they are also active or hovered
* in all browsers (opinionated).
*/
a:active, a:hover {
outline-width: 0;
}
/*
END Tachyons.io CSS
*/
html {
font-size: 18px;
overflow: hidden;
}
@media (max-width: 900px) {
html {
font-size: 20px;
}
}
@media (max-width: 400px) {
html {
font-size: 18px;
}
}
body {
overflow: hidden;
background: #BB6633;
font-family: -apple-system, BlinkMacSystemFont,
'avenir next', avenir,
'helvetica neue', helvetica,
ubuntu,
roboto, noto,
'segoe ui', arial,
sans-serif;
width: 100vw;
height: 100vh;
position: absolute;
}
/*
animation durations & delays are modified in the javascript
to sync with BPM of music
*/
/**
* "sure" is the background div; a square divided into four
*/
.sure {
border-bottom: 150vh solid #664433;
border-left: 150vw solid #BB6633;
border-right: 150vw solid #CCBBAA;
border-top: 150vh solid #997777;
position: absolute;
-webkit-transform: rotate(50deg);
transform: rotate(50deg);
left: -100vw;
top: -100vh;
opacity: 0.75;
overflow: hidden;
-webkit-animation-name: rotator;
animation-name: rotator;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
-webkit-animation-timing-function: ease;
animation-timing-function: ease;
-webkit-animation-duration: 1.714s;
animation-duration: 1.714s;
}
/**
* "top" is the horizontal bar div;
*/
.top {
display: block;
position: absolute;
width: 100vw;
height: 45vh;
top: 15vh;
left: 0;
background-color: #332211;
overflow: hidden;
}
/**
* "low" is the circular div;
*/
.low {
display: block;
position: absolute;
border-radius: 100%;
width: 65vw;
height: 65vw;
top: 65vh;
left: 55vw;
background-color: #997777;
overflow: hidden;
}
@-webkit-keyframes rotator {
0%, 100% {
-webkit-transform: rotate(50deg);
transform: rotate(50deg);
}
25% {
-webkit-transform: rotate(95deg);
transform: rotate(95deg);
}
}
@keyframes rotator {
0%, 100% {
-webkit-transform: rotate(50deg);
transform: rotate(50deg);
}
25% {
-webkit-transform: rotate(95deg);
transform: rotate(95deg);
}
}
@-webkit-keyframes upper {
0%, 50%, 100% {
-webkit-transform: translateY(0ex);
transform: translateY(0ex);
}
25% {
-webkit-transform: translateY(-0.2ex);
transform: translateY(-0.2ex);
}
75% {
-webkit-transform: translateY(0.2ex);
transform: translateY(0.2ex);
}
}
@keyframes upper {
0%, 50%, 100% {
-webkit-transform: translateY(0ex);
transform: translateY(0ex);
}
25% {
-webkit-transform: translateY(-0.2ex);
transform: translateY(-0.2ex);
}
75% {
-webkit-transform: translateY(0.2ex);
transform: translateY(0.2ex);
}
}
@-webkit-keyframes downer {
0%, 50%, 100% {
-webkit-transform: translateY(0ex);
transform: translateY(0ex);
}
25% {
-webkit-transform: translateY(0.2ex);
transform: translateY(0.2ex);
}
75% {
-webkit-transform: translateY(-0.2ex);
transform: translateY(-0.2ex);
}
}
@keyframes downer {
0%, 50%, 100% {
-webkit-transform: translateY(0ex);
transform: translateY(0ex);
}
25% {
-webkit-transform: translateY(0.2ex);
transform: translateY(0.2ex);
}
75% {
-webkit-transform: translateY(-0.2ex);
transform: translateY(-0.2ex);
}
}
@-webkit-keyframes buttonIn {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
@keyframes buttonIn {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
.button {
position: absolute;
left: calc(50vw - (1.8rem + 4ex)/2);
top: calc(50vh - (1.8rem + 2ex)/2);
display: block;
padding: 0.9rem;
font-size: 2.5rem;
cursor: pointer;
font-weight: bold;
text-align: center;
text-decoration: none;
outline: none;
color: #CCBBAA;
background-color: #332211;
border: none;
border-radius: 100%;
user-select: none;
-moz-user-select: none;
-ms-user-select: none;
-webkit-user-select: none;
-webkit-tap-highlight-color: rgba(0,0,0,0);
opacity: 0;
-webkit-animation-name: buttonIn;
animation-name: buttonIn;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
-webkit-animation-timing-function: ease;
animation-timing-function: ease;
-webkit-animation-duration: 0.75s;
animation-duration: 0.75s;
animation-play-state: paused;
-webkit-animation-play-state: paused;
}
.button:hover {
font-size: 2.6rem;
background-color: #4F3826;
}
.button:active {
font-size: 2.8rem;
font-weight: 800;
unicode-bidi: bidi-override;
direction: rtl;
color: #332211;
background-color: #BFAA9D;
}
/**
* "loader" is the text that says "loading";
*/
.loader {
position: absolute;
left: calc(50vw - (1.8rem + 4ex)/2);
top: calc(50vh - (1.8rem + 4.5ex)/2);
display: block;
color: #332211;
font-size: 2rem;
font-weight: bold;
text-align: center;
text-decoration: none;
outline: none;
-webkit-transform: translateZ(0);
transform: translateZ(0);
}
/**
* "upper" and "lower" control the animation of the "loading" letters;
* durations modified in javascript to sync with tempo
*/
.upper {
-webkit-animation-name: upper;
animation-name: upper;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
display: inline-block;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
-webkit-animation-timing-function: ease-in;
animation-timing-function: ease-in;
-webkit-animation-duration: 5s;
animation-duration: 5s;
}
.downer {
-webkit-animation-name: downer;
animation-name: downer;
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
display: inline-block;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
-webkit-animation-timing-function: ease-out;
animation-timing-function: ease-out;
-webkit-animation-duration: 5s;
animation-duration: 5s;
}
</style>
<body>
<div class="top" id="top"></div>
<div class="low" id="low"></div>
<div class="sure" id="sure"></div>
<p aria-label="loading" alt="loading" class="loader" id="loader"><span class="downer" id="x4">l</span><span class="upper" id="x3">oa</span><span class="downer" id="x2b">d</span><span class="upper" id="x2a">i</span><span class="downer" id="x1">ng</span></p>
<input aria-hidden="true" class="button" id="beginner" type="button" value="ORG" onclick="playIt()" />
<script src="stereo-panner-node.min.js"></script>
<script>
// CSS animation elements
var bDiv = document.getElementById("sure");
var buttr = document.getElementById("beginner");
var loader = document.getElementById("loader");
var bodd = loader.parentNode;
// disable playback button until audio is ready
buttr.onclick = "";
buttr.style.cursor = "auto";
// create audio context and apply latency hint, if possible
if (!window.hasOwnProperty("AudioContext") && window.hasOwnProperty("webkitAudioContext")){
window.AudioContext = window.webkitAudioContext;
}
var audioContext = new AudioContext();
if("latencyHint" in audioContext) {
audioContext.latencyHint = "playback";
}
var context = audioContext;
// Mohoyanao's StereoPanner poly
StereoPannerNode.polyfill();
// create audio processing nodes
var masterGain = audioContext.createGain();
var volume1 = audioContext.createGain();
var volume2 = audioContext.createGain();
var volume3 = audioContext.createGain();
var volume4 = audioContext.createGain();
var volume5 = audioContext.createGain();
// one of the audio loops gets doubled and tuned an octave up
// however, if this method is not available
// the corresponding audio nodes are not created
if("detune" in AudioBufferSourceNode) {
var volume5Up = audioContext.createGain();
var volume5UpPre = audioContext.createGain();
}
var panner2 = audioContext.createStereoPanner();
var panner3 = audioContext.createStereoPanner();
var panner4 = audioContext.createStereoPanner();
var panner5 = audioContext.createStereoPanner();
if("detune" in AudioBufferSourceNode) {
var panner5Up = audioContext.createStereoPanner();
}
panner2.pan.value = 0.35;
panner3.pan.value = -0.35;
panner4.pan.value = 0.75;
panner5.pan.value = -0.75;
if("detune" in AudioBufferSourceNode) {
panner5Up.pan.value = 0.85;
}
var filter1 = audioContext.createBiquadFilter();
var filter2 = audioContext.createBiquadFilter();
var filter3 = audioContext.createBiquadFilter();
var filter4 = audioContext.createBiquadFilter();
var filter5 = audioContext.createBiquadFilter();
if("detune" in AudioBufferSourceNode) {
var filter5Up = audioContext.createBiquadFilter();
}
filter1.type = "lowpass";
filter1.frequency.value = 1200;
filter2.type = "lowpass";
filter2.frequency.value = 1450;
filter3.type = "highpass";
filter3.frequency.value = 300;
filter4.type = "highpass";
filter4.frequency.value = 350;
filter5.type = "highpass";
filter5.frequency.value = 450;
if("detune" in AudioBufferSourceNode) {
filter5Up.type = "lowpass";
filter5Up.frequency.value = 3500;
}
// create LFOs
var LFO1 = audioContext.createOscillator();
var LFO2 = audioContext.createOscillator();
LFO1.type = 'triangle';
LFO2.type = 'sine';
// use gain nodes to vary the amount of LFO applied
var LFOgain1 = audioContext.createGain();
var LFOgain2 = audioContext.createGain();
var LFOgain3 = audioContext.createGain();
var LFOgain4 = audioContext.createGain();
var LFOgain5 = audioContext.createGain();
LFOgain1.gain.value = 0.3;
LFOgain2.gain.value = 0.15;
LFOgain3.gain.value = 0.2;
LFOgain4.gain.value = 0.4;
LFOgain5.gain.value = 0.3;
LFO1.connect(LFOgain1);
LFO1.connect(LFOgain2);
LFO1.connect(LFOgain4);
LFO2.connect(LFOgain3);
LFO2.connect(LFOgain5);
// apply LFOs to the loop volumes
LFOgain1.connect(volume1.gain);
LFOgain2.connect(volume2.gain);
LFOgain3.connect(volume3.gain);
LFOgain4.connect(volume4.gain);
LFOgain5.connect(volume5.gain);
if("detune" in AudioBufferSourceNode) {
LFOgain5.connect(volume5Up.gain);
}
// create AudioBufferSourceNodes to play the audio loops
var organ1 = audioContext.createBufferSource();
var organ2 = audioContext.createBufferSource();
var organ3 = audioContext.createBufferSource();
var organ4 = audioContext.createBufferSource();
var organ5 = audioContext.createBufferSource();
if("detune" in AudioBufferSourceNode) {
var organ5Up = audioContext.createBufferSource();
}
//
// provide both 41k and 48k samplerate files;
// serve based on device's samplerate
var lowOrg = 'audio/organ-low-2m-48-b.mp4';
var medOrg = 'audio/organ-med-8m-48.mp4';
var hiOrg = 'audio/organ-hi-7m-48.mp4';
var hierOrg = 'audio/organ-hi-er-9m-48.mp4';
var hiestOrg = 'audio/organ-hi-est-6m-48.mp4';
if (audioContext.sampleRate === 44100) {
lowOrg = 'audio/organ-low-2m-b.mp4';
medOrg = 'audio/organ-med-8m.mp4';
hiOrg = 'audio/organ-hi-7m.mp4';
hierOrg = 'audio/organ-hi-er-9m.mp4';
hiestOrg = 'audio/organ-hi-est-6m.mp4';
}
// fetch samples
getSample(lowOrg, function play(buffer) {
// save buffer in global var for later use
temp1 = buffer;
// connect sourceNode to the buffer & to audio processing
organ1.buffer = temp1;
organ1.connect(filter1);
filter1.connect(volume1);
volume1.connect(masterGain);
organ1.loop = true;
volume1.gain.value = 0.8;
});
getSample(medOrg, function play(buffer) {
temp2 = buffer;
organ2.buffer = temp2;
organ2.connect(filter2);
filter2.connect(volume2);
volume2.connect(panner2);
panner2.connect(masterGain);
organ2.loop = true;
volume2.gain.value = 0.84;
});
getSample(hiOrg, function play(buffer) {
temp3 = buffer;
organ3.buffer = temp3;
organ3.connect(filter3);
filter3.connect(volume3);
volume3.connect(panner3);
panner3.connect(masterGain);
organ3.loop = true;
volume3.gain.value = 0.78;
});
getSample(hierOrg, function play(buffer) {
temp4 = buffer;
organ4.buffer = temp4;
organ4.connect(filter4);
filter4.connect(volume4);
volume4.connect(panner4);
panner4.connect(masterGain);
organ4.loop = true;
volume4.gain.value = 0.72;
});
getSample(hiestOrg, function play(buffer) {
temp5 = buffer;
organ5.buffer = temp5;
organ5.connect(filter5);
filter5.connect(volume5);
volume5.connect(panner5);
panner5.connect(masterGain);
organ5.loop = true;
volume5.gain.value = 0.72;
// if possible,
// loop #5 is played by TWO nodes;
// the second node pitches the sample up an octave
// and only plays through the master delay effect
if("detune" in AudioBufferSourceNode) {
organ5Up.buffer = organ5.buffer;
organ5Up.connect(volume5UpPre);
volume5UpPre.connect(volume5Up);
volume5Up.connect(filter5Up);
filter5Up.connect(panner5Up);
panner5Up.connect(mdelay);
organ5Up.loop = true;
volume5UpPre.gain.value = 0.23;
organ5Up.detune.value = 1200;
}
});
var xhrs = 0;
function getSample(url, cb) {
// if possible, use the Fetch API,
// so that a serviceWorker can cache the page
if("fetch" in window) {
fetch(url).then(function(response) {
return response.arrayBuffer()
}).then(function(arrayBuffer) {
audioContext.decodeAudioData(arrayBuffer, cb);
xhrs++;
// for each asset loaded, update the loader animation
if (xhrs === 1) {
var x1 = document.getElementById("x1");
x1.style.color = "#CCBBAA";
}
if (xhrs === 2) {
var x2a = document.getElementById("x2a");
var x2b = document.getElementById("x2b");