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part15a.html
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<!DOCTYPE html>
<html>
<title>Creative Coding Yea!</title>
<head>
<meta charset="utf-8">
<script language="javascript" src="js/creative_coding.js"></script>
<script language="javascript" src="js/canvas.js"></script>
<link rel="stylesheet" href="css/reset.css" type="text/css" media="screen" />
<link rel="stylesheet" href="css/style.css" type="text/css" media="screen" />
<link rel="stylesheet" href="css/audio.css" type="text/css" media="screen" />
</head>
<body>
<script>
var ctx = createCanvas("canvas1");
var num_items = 200;
var radius = 80;
ctx.lineWidth = 2;
var particles = [];
// working out the angles
// this was covered here: https://hackernoon.com/math-sin-and-math-cos-the-creative-coders-best-friend-597d69000644#.hs4cfjno1
for (var i = 0; i < num_items; i++) {
var angle = radians(distributeAngles(i, num_items));
particles[i] = {
x: w/2 + Math.cos(angle) * radius,
y: h/2 + Math.sin(angle) * radius,
angle: angle
}
}
function draw(){
ctx.background(245);
//console.log(Mic.data);
for (var i = 0; i < particles.length; i++) {
var p = particles[i];
//var s = Mic.mapRawSound(i, particles.length, 0, 100);
var s = Sound.mapSound(i, particles.length, 10, 100);
// get a nice greyscale spectrum
//ctx.strokeStyle = rgb(map(i, 0, particles.length, 0, 255));
// get a nice colour spectrum
ctx.strokeStyle = hsl(map(i, 0, particles.length, 0, 360), 90, 50);
x2 = w/2 + Math.cos(p.angle) * (s + radius);
y2 = h/2 + Math.sin(p.angle) * (s + radius);
ctx.line(p.x, p.y, x2, y2);
}
}
</script>
<script language="javascript" src="js/soundcloud.js"></script>
</body>
</html>