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Siri_Wave_ios9.html
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Siri_Wave_ios9.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<style>
body {
font-family: 'Helvetica Neue', Helvetica, sans-serif;
font-weight: 100;
background: #fff;
color: #000;
text-align: center;
}
#title {
font-size: 120px;
font-weight: 100;
margin-top: 30px;
margin-bottom: 40px;
}
h1, h2, h3 {
font-weight: 100;
}
#panel {
font-size: 14px;
}
#panel input {
display: block;
margin: 0 auto;
width: 300px;
margin-bottom: 40px;
}
.container {
display: inline-block;
width: 400px;
margin: 0;
position: relative;
}
.container > img {
width: 100%;
}
.container .iphone-display {
background: #111;
background-size: cover;
position: absolute;
left: 68px;
right: 73px;
top: 127px;
bottom: 142px;
}
.container canvas {
position: absolute;
bottom: 182px;
left: 68px;
right: 73px;
}
</style>
<body>
<script>
function SiriWave9Curve(opt) {
opt = opt || {};
this.controller = opt.controller;
this.color = opt.color;
this.tick = 0;
this.respawn();
}
SiriWave9Curve.prototype.respawn = function() {
this.amplitude = 0.3 + Math.random() * 0.7;
this.seed = Math.random();
this.open_class = 2+(Math.random()*3)|0;
};
SiriWave9Curve.prototype.equation = function(i) {
var p = this.tick;
var y = -1 * Math.abs(Math.sin(p)) * this.controller.amplitude * this.amplitude * this.controller.MAX * Math.pow(1/(1+Math.pow(this.open_class*i,2)),2);
if (Math.abs(y) < 0.001) {
this.respawn();
}
return y;
};
SiriWave9Curve.prototype._draw = function(m) {
this.tick += this.controller.speed * (1-0.5*Math.sin(this.seed*Math.PI));
var ctx = this.controller.ctx;
ctx.beginPath();
var x_base = this.controller.width/2 + (-this.controller.width/4 + this.seed*(this.controller.width/2) );
var y_base = this.controller.height/2;
var x, y, x_init;
var i = -3;
while (i <= 3) {
x = x_base + i * this.controller.width/4;
y = y_base + (m * this.equation(i));
x_init = x_init || x;
ctx.lineTo(x, y);
i += 0.01;
}
var h = Math.abs(this.equation(0));
var gradient = ctx.createRadialGradient(x_base, y_base, h*1.15, x_base, y_base, h * 0.3 );
gradient.addColorStop(0, 'rgba(' + this.color.join(',') + ',0.4)');
gradient.addColorStop(1, 'rgba(' + this.color.join(',') + ',0.2)');
ctx.fillStyle = gradient;
ctx.lineTo(x_init, y_base);
ctx.closePath();
ctx.fill();
};
SiriWave9Curve.prototype.draw = function() {
this._draw(-1);
this._draw(1);
};
function SiriWave9(opt) {
opt = opt || {};
this.tick = 0;
this.run = false;
// UI vars
this.ratio = opt.ratio || window.devicePixelRatio || 1;
this.width = this.ratio * (opt.width || 320);
this.height = this.ratio * (opt.height || 100);
this.MAX = this.height/2;
this.speed = 0.1;
this.amplitude = opt.amplitude || 1;
// Canvas
this.canvas = document.createElement('canvas');
this.canvas.width = this.width;
this.canvas.height = this.height;
this.canvas.style.width = (this.width / this.ratio) + 'px';
this.canvas.style.height = (this.height / this.ratio) + 'px';
this.container = opt.container || document.body;
this.container.appendChild(this.canvas);
this.ctx = this.canvas.getContext('2d');
// Create curves
this.curves = [];
for (var i = 0; i < SiriWave9.prototype.COLORS.length; i++) {
var color = SiriWave9.prototype.COLORS[i];
for (var j = 0; j < (3 * Math.random())|0; j++) {
this.curves.push(new SiriWave9Curve({
controller: this,
color: color
}));
}
}
if (opt.autostart) {
this.start();
}
}
SiriWave9.prototype._clear = function() {
this.ctx.globalCompositeOperation = 'destination-out';
this.ctx.fillRect(0, 0, this.width, this.height);
this.ctx.globalCompositeOperation = 'lighter';
};
SiriWave9.prototype._draw = function() {
if (this.run === false) return;
this._clear();
for (var i = 0, len = this.curves.length; i < len; i++) {
this.curves[i].draw();
}
requestAnimationFrame(this._draw.bind(this));
//setTimeout(this._draw.bind(this), 100);
};
SiriWave9.prototype.start = function() {
this.tick = 0;
this.run = true;
this._draw();
};
SiriWave9.prototype.stop = function() {
this.tick = 0;
this.run = false;
};
SiriWave9.prototype.COLORS = [
[32,133,252],
[94,252,169],
[253,71,103]
];
</script>
<script>
var $siri_ios9 = document.getElementById('container-ios9');
var SW9 = new SiriWave9({
width: 259,
height: 40,
speed: 0.2,
amplitude: 1,
container: $siri_ios9,
autostart: true,
});
</script>
</body>
</html>