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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="Component for drawing confetti on a canvas">
<meta name="author" content="Kiril Vatev">
<meta name="keywords" content="canvas,confetti,component,module,animation,javascript,catdad">
<meta name="theme-color" content="#393939">
<title>🎊</title>
<link href="https://fonts.googleapis.com/css?family=Noto+Sans" rel="stylesheet">
<style>
html, body {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
background: #212121;
color: #eee;
font-size: 1em;
font-family: 'Noto Sans', sans-serif;
}
* {
box-sizing: border-box;
}
.sprite {
display: none;
}
a.github-corner {
position: absolute;
top: 0;
right: 0;
width: 80px;
height: 80px;
}
h1, h2, .center {
text-align: center;
}
h2 {
padding: 0;
margin: 0.25em;
}
p {
margin: 0.5em;
}
.container {
position: relative;
max-width: 1000px;
width: 100%;
margin: 0 auto;
}
.group {
position: relative;
width: 100%;
margin: 40px 0;
padding-top: 16px;
border-top: 1px solid #3e3e3e;
border-radius: 20px;
}
.run {
padding: 10px 6px;
margin: 0.75em 0;
background: rgba(255,255,255,0.1);
border: none;
outline: none;
color: #eee;
font-weight: bold;
cursor: pointer;
user-select: none;
opacity: 0.6;
transition: opacity 100ms ease;
}
.group .run:hover {
opacity: 1;
}
.editor {
position: relative;
min-height: 100px;
width: 100%;
}
.editor.ace_dark.ace_editor {
background-color: #363636;
}
.editor.ace_dark .ace_gutter {
color: #8b8b8b;
background: #272727;
}
.flex-rows {
position: relative;
display: block;
width: 100%;
padding-bottom: 1em;
}
.description {
width: 94%;
margin: 10px auto;
padding: 0;
align-items: center;
line-height: 1.5;
}
.left {
flex-grow: 1;
display: flex;
flex-direction: column;
}
a.anchor {
position: relative;
color: currentColor;
text-decoration: none;
}
a.anchor:hover::before {
content: "🔗";
color: currentColor;
position: absolute;
left: -2rem;
top: 0;
transform: scale(0.75, 0.75);
}
footer {
font-size: 0.9rem;
text-align: center;
line-height: 2;
background: rgba(255,255,255,0.1);
}
footer span {
vertical-align: middle;
}
span.icon {
position: relative;
display: inline-block;
height: 1em;
width: 1em;
}
svg.icon {
position: absolute;
pointer-events: none;
left: 0;
width: 100%;
height: 100%;
fill: #e5e5e5;
}
footer a {
text-decoration: none;
color: white;
opacity: 0.85;
will-change: opacity;
}
footer a:hover {
opacity: 1;
}
.custom-canvas {
margin-top: 30px;
width: 100%;
max-width: 1000px;
height: 380px;
background: #363636;
}
@media (min-width: 44em) {
.container {
width: 95%;
}
.flex-rows {
display: flex;
flex-direction: row;
}
.description {
width: 66%;
padding: 0 0 0 1em;
}
}
</style>
<script>
// this page is a demo that is not built, so fudge the module.exports support
// define a global `module` so that the actual source file can use it
window.module = {};
</script>
<script src="src/confetti.js"></script>
<script>
// define the `module.exports` as the `confetti` global, the way that the
// cdn distributed file would
window.confetti = module.exports;
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.9/ace.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.7.5/beautify.min.js"></script>
</head>
<body>
<svg class="sprite" xmlns="http://www.w3.org/2000/svg">
<defs>
<symbol id="code" viewBox="0 0 14 16">
<!-- Icon from GitHub Octicons - https://github.com/primer/octicons/ -->
<path d="M9.5 3L8 4.5 11.5 8 8 11.5 9.5 13 14 8 9.5 3 9.5 3ZM4.5 3L0 8 4.5 13 6 11.5 2.5 8 6 4.5 4.5 3 4.5 3Z"/>
</symbol>
<symbol id="heart" viewBox="0 0 12 16">
<!-- Icon from GitHub Octicons - https://github.com/primer/octicons/ -->
<path d="M11.2 3C10.68 2.37 9.95 2.05 9 2 8.03 2 7.31 2.42 6.8 3 6.29 3.58 6.02 3.92 6 4 5.98 3.92 5.72 3.58 5.2 3 4.68 2.42 4.03 2 3 2 2.05 2.05 1.31 2.38 0.8 3 0.28 3.61 0.02 4.28 0 5 0 5.52 0.09 6.52 0.67 7.67 1.25 8.82 3.01 10.61 6 13 8.98 10.61 10.77 8.83 11.34 7.67 11.91 6.51 12 5.5 12 5 11.98 4.28 11.72 3.61 11.2 2.98L11.2 3Z"/>
</symbol>
<symbol id="run" viewBox="0 0 10 10">
<path d="M2 2L8 6L2 10" />
</symbol>
<symbol id="octo" viewBox="0 0 80 80">
<!-- Adapted from Tim Holman's GitHub Corners - https://github.com/tholman/github-corners -->
<path d="M0 0L36.8 36.8 45.3 45.3 80 80 80 0 0 0ZM40.6 34.6C36.3 31.7 38.1 28.8 38.1 28.8 39 26.6 38.7 25.3 38.7 25.3 38.4 23 39.7 24.6 39.7 24.6 41 26.2 40.3 28.2 40.3 28.2 39.6 30.7 41 32.2 42.3 32.9L42.9 32.3C43.8 31.7 44.8 31.4 45.4 31.4 42.9 27.8 40.6 23.7 46.1 18.2 47.7 16.6 49.3 16 51.2 16 51.5 15.4 52.2 13.8 55 12.5 55 12.5 56.6 13.4 57.3 17.6 58.6 18.2 59.8 19.2 61.1 20.5 62.4 21.8 63.4 23 64 24.3 68.5 25.3 69.4 26.6 69.4 26.6 68.2 29.1 66.6 30.1 65.9 30.1 65.9 32 65.3 33.6 63.7 35.2 58.6 40.3 54.1 38.6 50.6 36 50.6 37 50.2 38 49 39.4Q45.9 42.8 45.2 43.6C44.7 44.2 45.3 45.3 45.3 45.3L36.8 36.8C36.8 36.8 37.8 37.4 38.4 36.8L40.6 34.6Z"/>
</symbol>
</defs>
</svg>
<a class="github-corner" href="https://github.com/catdad/canvas-confetti" aria-label="View source on Github">
<svg class="icon"><use xlink:href="#octo"></use></svg>
</a>
<h1>Canvas Confetti</h1>
<div class="container">
<div class="group" data-name="cannon">
<div class="flex-rows">
<div class="left">
<h2><a href="#basic" id="basic" class="anchor">Basic Cannon</a></h2>
<button class="run">
Run
<span class="icon">
<svg class="icon"><use xlink:href="#run"></use></svg>
</span>
</button>
</div>
<div class="description">
<p>
The default mode... just your regular basic average blast of confetti. But it's still
a little cool, right?
</p>
</div>
</div>
<div class="editor"></div>
</div>
</div>
<div class="container">
<div class="group" data-name="random">
<div class="flex-rows">
<div class="left">
<h2><a href="#random" id="random" class="anchor">Random Cannon</a></h2>
<button class="run">
Run
<span class="icon">
<svg class="icon"><use xlink:href="#run"></use></svg>
</span>
</button>
</div>
<div class="description">
<p>
Go crazy with some randomness. Shoot a random amount of confetti in random directions.
(Go ahead... you know you want to click that button more than once.)
</p>
</div>
</div>
<div class="editor"></div>
</div>
</div>
<div class="container">
<div class="group" data-name="fireworks">
<div class="flex-rows">
<div class="left">
<h2><a href="#fireworks" id="fireworks" class="anchor">Fireworks</a></h2>
<button class="run">
Run
<span class="icon">
<svg class="icon"><use xlink:href="#run"></use></svg>
</span>
</button>
</div>
<div class="description">
<p>
Why click a button repeatedly when you can have code do it for you? Shoot a firework
of confetti from a random location on the page 5 times per second.
</p>
</div>
</div>
<div class="editor"></div>
</div>
</div>
<div class="container">
<div class="group" data-name="snow">
<div class="flex-rows">
<div class="left">
<h2><a href="#snow" id="snow" class="anchor">Snow</a></h2>
<button class="run">
Run
<span class="icon">
<svg class="icon"><use xlink:href="#run"></use></svg>
</span>
</button>
</div>
<div class="description">
<p>
The effect is not limited to crazy rapid fire of confetti though. You can create a
wintery mood with gently falling particles across the entire page.
</p>
</div>
</div>
<div class="editor"></div>
</div>
</div>
<div class="container">
<div class="group" data-name="continuous">
<div class="flex-rows">
<div class="left">
<h2><a href="#continuous" id="continuous" class="anchor">School Pride</a></h2>
<button class="run">
Run
<span class="icon">
<svg class="icon"><use xlink:href="#run"></use></svg>
</span>
</button>
</div>
<div class="description">
<p>
But if you are into crazy rapid fire of confetti, what could be a better use than
to show everyone what you are all about? Tell people where you are from with two
confetti cannons from either side of the page.
</p>
<p class="center">🌰 Go Buckeyes! 🌰</p>
</div>
</div>
<div class="editor"></div>
</div>
</div>
<div class="container">
<div class="group" data-name="custom">
<div class="flex-rows">
<div class="left">
<h2><a href="#custom-canvas" id="custom-canvas" class="anchor">Custom Canvas</a></h2>
<button class="run">
Run
<span class="icon">
<svg class="icon"><use xlink:href="#run"></use></svg>
</span>
</button>
</div>
<div class="description">
<p>
But if you just hate confetti all over the place, there's something here for you
as well. You can limit where the confetti appear by providing your own canvas element.
</p>
</div>
</div>
<div class="editor"></div>
<div class="flex-rows">
<canvas id="my-canvas" class="custom-canvas"></canvas>
</div>
</div>
</div>
<footer>
<a href="https://github.com/catdad">
<span class="icon">
<svg class="icon"><use xlink:href="#code"></use></svg>
</span>
<span> with </span>
<span class="icon">
<svg class="icon"><use xlink:href="#heart"></use></svg>
</span>
<span> by <b>catdad</b></span>
</a>
</footer>
<script>
var modes = {
cannon: function cannon() {
confetti({
particleCount: 100,
spread: 70,
origin: { y: 0.6 }
});
},
random: function random() {
function r(min, max) {
return Math.random() * (max - min) + min;
}
confetti({
angle: r(55, 125),
spread: r(50, 70),
particleCount: r(50, 100),
origin: { y: 0.6 }
});
},
fireworks: function fireworks() {
var end = Date.now() + (15 * 1000);
var interval = setInterval(function () {
if (Date.now() > end) {
return clearInterval(interval);
}
confetti({
startVelocity: 30,
spread: 360,
ticks: 60,
shapes: ['square'],
origin: {
x: Math.random(),
// since they fall down, start a bit higher than random
y: Math.random() - 0.2
}
});
}, 200);
},
snow: function snow() {
var end = Date.now() + (15 * 1000);
(function frame() {
confetti({
particleCount: 1,
startVelocity: 0,
ticks: 300,
origin: {
x: Math.random(),
// since they fall down, start a bit higher than random
y: Math.random() - 0.2
},
colors: ['#ffffff'],
shapes: ['circle']
});
if (Date.now() < end) {
requestAnimationFrame(frame);
}
}());
},
continuous: function continuous() {
var end = Date.now() + (15 * 1000);
// go Buckeyes!
var colors = ['#bb0000', '#ffffff'];
(function frame() {
confetti({
particleCount: 2,
angle: 60,
spread: 55,
origin: { x: 0 },
colors: colors
});
confetti({
particleCount: 2,
angle: 120,
spread: 55,
origin: { x: 1 },
colors: colors
});
if (Date.now() < end) {
requestAnimationFrame(frame);
}
}());
},
custom: function() {
var canvas = document.getElementById('my-canvas');
// save this function... we'll save it to the canvas itself for
// the purpose of this demo
canvas.confetti = canvas.confetti || confetti.create(canvas, { resize: true });
canvas.confetti({
spread: 70,
origin: {
y: 1.2
}
});
}
};
function auto(mode, count, time) {
count = count || 10;
var interval = setInterval(function () {
if (count--) {
return modes[mode]();
}
clearInterval(interval);
}, time || 200);
}
function pretty(val) {
return js_beautify(val);
}
function getCode(name) {
// pretty-print the code, since we will use minified code in production
var code = pretty(modes[name].toString());
// take out the function wrapper, trim all whitespace
code = code.split('\n').slice(1).slice(0, -1).map(function (s) {
return s.trim();
}).join('\n');
// pretty-print again
return pretty(code);
}
[].forEach.call(document.querySelectorAll('.group'), function (group) {
var name = group.getAttribute('data-name');
var button = group.querySelector('.run');
var codeElem = group.querySelector('.editor');
var editor = ace.edit(codeElem);
editor.setTheme('ace/theme/monokai');
editor.session.setMode('ace/mode/javascript');
editor.session.setValue(getCode(name));
var count = editor.session.getLength();
// set height so that all code is visible
codeElem.style.minHeight = (14 * count) + 1 + 'px';
codeElem.style.height = (count) + 'rem';
button.onclick = function (ev) {
// stop mobile browsers from zooming when clicking
// buttons repeatedly really fast
ev.preventDefault();
try {
eval(editor.getValue());
} catch (e) {
console.error(e);
}
};
});
</script>
<script src="/analytics.js"></script>
</body>
</html>