processing.js

random square

by uto usui

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"></script>
<div class="wrap">
	<h1>processing.js</h1>
	<p class="lead">random square</p>
	<canvas id="myCanvas"></canvas>
</div>
<link href="https://fonts.googleapis.com/css?family=Dancing+Script:400,700" rel="stylesheet">

SCSS

body {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 100%;
	min-height: 100vh;
  padding: 1em;
	font-family: 'Dancing Script';
	text-align: center;
  background-image: linear-gradient(-30deg,#f7cac9 20%,#91A8d0 85%);
}

h1 {
	font-size: 42px;
	font-weight: bold;
	color: #32355a;
}

canvas {
	margin: 20px auto;
	border: 3px dashed rgba(#32355a, .55);
  background-color: rgba(white, .15);
}

JavaScript

</script>
<script type="application/processing" data-processing-target="myCanvas">

size(320, 320);

colorMode(HSB,360,100,100,100);
background(180, 35, 80, 20);

int w = width;
int h = height;
int n = 300;

// random square
for(int i=0; i<n; i++){
  // randomはfloat型で変数を設定
	float randColor = random(150, 250);
  float randSize = random(5, 15);
	float randX = random(w);
	float randY = random(h);
	noStroke();
	fill(randColor, 55, 70, 35);
	rect(randX, randY, randSize, randSize)
}