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part5c.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 block_size = 20;
var number_of_balls = 15;
var balls = [];
for (var i = 0; i < number_of_balls; i++) {
addBall();
}
console.log(balls);
// think of an function like a machine
function addBall(){
// we create a ball object - an object has properties
var ball = {
x: width/2,
y: height/2,
speed_x: random(-15, 15),
speed_y: random(-15, 15),
size: random(10, 30)
}
balls.push(ball);
}
function draw(){
// shortcut for clearing the screen,
// * takes a rgb value 255,255,255 or a grey value of 0-255
ctx.background(250, 0.1);
for (var i = 0; i < number_of_balls; i++) {
b = balls[i];
b.x += b.speed_x;
b.y += b.speed_y;
// we adjust the hit area because shere is drawn from the centre
if (b.x > width - b.size/2 || b.x < b.size/2 ) {
b.speed_x = b.speed_x *-1;
}
if (b.y > height - b.size/2 || b.y < b.size/2 ) {
b.speed_y = b.speed_y *-1;
}
ctx.fillStyle = "#00aeef";
ctx.strokeRect(b.x, b.y, b.size, b.size);
} // end for loop
} // end draw
</script>
<!-- <script language="javascript" src="js/soundcloud.js"></script> -->
</body>
</html>