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part6d.html
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part6d.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" />
</head>
<body style="background: #fff">
<script>
// Moving Balls with Lissajous Curves
var ctx2 = createCanvas("canvas2");
var ctx = createCanvas("canvas1");
var number_of_balls = 150;
var balls = [];
var max_distance = 150;
// push a ball and it's values into the array
for (var i = 0; i < number_of_balls; i++) {
addBall(i);
}
function addBall(_i){
var ball = {
x: random(400),
y: random(300),
speed_x: posNeg() * random(0.002, 0.01)/20,
speed_y: posNeg() * random(0.002, 0.01)/20,
anglex: random(360),
angley: random(360),
radiusx: w,
radiusy: h,
size: 10,
colour: rgb(200,0,0),
}
balls.push(ball);
}
function draw(){
//ctx.background(0);
ctx.clearRect(0,0,w,h);
moveBall();
drawBall();
}
function moveBall(){
for (var i = 0; i < balls.length; i++) {
var b = balls[i];
b.anglex += b.speed_x;
b.angley += b.speed_y;
b.x = Math.cos(b.anglex) * b.radiusx;
b.y = Math.sin(b.angley) * b.radiusy;
}
}
function drawBall(){
for (var i = 0; i < balls.length; i++) {
var b = balls[i];
drawConnections(i);
ctx.fillStyle = b.colour;
ctx.fillEllipse(b.x, b.y, b.size);
ctx2.fillStyle = rgba(0, 0.5);
ctx2.fillRect(b.x, b.y, 0.5, 0.5);
}
}
function drawConnections(_i) {
for (var j = 0; j < balls.length; j++) {
b1 = balls[_i];
b2 = balls[j];
var distance = dist(b1.x, b1.y, b2.x, b2.y);
if (j!=i) {
if ( distance <= max_distance) {
ctx.strokeStyle = b1.colour;
// ctx.lineWidth = 1 - distance/max_distance;
ctx.lineWidth = 0.5;
ctx.line(b1.x, b1.y, b2.x, b2.y);
ctx2.lineWidth = 0.2;
ctx2.strokeStyle = rgba(0, 0.05);
ctx2.line(b1.x, b1.y, b2.x, b2.y);
}
}
}
}
</script>
</body>
</html>