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part3e.html
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part3e.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>
<script>
var ctx = createCanvas("canvas1");
var number_of_balls = 100;
var balls = [];
// push a ball and it's values into the array
for (var i = 0; i < number_of_balls; i++) {
var ball = {
x: width/2,
y: height/2,
speed_x: random(-5, 5),
speed_y: random(-5, 5),
size: 20,
colour: rgb(0)
}
balls.push(ball);
}
function draw(){
ctx.background(255, 0.2);
moveBall();
drawBall();
}
function moveBall(){
for (var i = 0; i < balls.length; i++) {
var b = balls[i];
b.x = b.x + b.speed_x;
b.y = b.y + b.speed_y;
if (bounce(b.x, 0, w, b.size)) {
b.speed_x *=-1;
b.colour = rgb(randomInt(55),randomInt(255),0);
}
if (bounce(b.y, 0 ,h, b.size)) {
b.speed_y *=-1;
b.colour = rgb(0, randomInt(255),randomInt(55));
}
}
}
function drawBall(){
for (var i = 0; i < balls.length; i++) {
var b = balls[i];
ctx.fillStyle = b.colour;
ctx.fillEllipse(b.x, b.y, b.size, b.size);
}
}
</script>
</body>
</html>