0403letsbuildasnowman

var a = 0;

var s = 0.25; // size

var sincr = 0.05; // size increment each frame

​

function setup() {

  createCanvas(windowWidth, windowHeight);

}

​

function draw() {

  background(255);

  fill(200, 200, 200);

  rectMode(CENTER);

  translate(mouseX, mouseY);

  rotate(radians(a));

  scale(s);

  ellipse(0, -75, 50, 50);

  ellipse(0, 0, 100, 100);

  ellipse(0, 125, 150, 150);

  a = a+1;

  s = s+sincr;

  if(s>1) sincr = -sincr; // reverse it

  if(s<0.05) sincr = -sincr; // reverse it

}

​