var size = 0 var randomX = 0 var randomY = 0 var mouseIndex = 0 function setup() { createCanvas(windowWidth, windowHeight); background(255, 255, 255) noFill(); for (i = 0; i < 30; i++) { size = random(0, 15) * i; randomX = random(-width / 10, width / 10); randomY = random(-height / 10, height / 10); square(width / 2 + randomX - size / 2, height / 2 + randomY - size / 2, size); } } function draw() { } function mousePressed() { mouseIndex++ size = random(0, 15) * i; randomX = random(-width / 10, width / 10); randomY = random(-height / 10, height / 10); square(width / 2 + randomX - size / 2, height / 2 + randomY - size / 2, size); }