Simplicity

// By Roni Kaufman

// After John Maeda

let lapse = 0;    // mouse timer

​

function setup() {

  createCanvas(1112, 834);

  frameRate(1)

}

​

function draw() {

  clear()

  blendMode(DIFFERENCE);

  for (let i = 0; i < 154; i++) {

    let x = width/2 + random(-60, 60);

    let y = height/2 + random(-60, 60);

    //let d = 125 + i*3;

    let d = 150 + i*i/40

    if (i % 3 === 0) {

      fill(255, 0, 0);

    } else if (i % 3 === 1) {

      fill(0, 255, 0);

    } else {

      fill(0, 0, 255);

    }

    circle(x, y, d);

  }

}

​

function mousePressed(){

// prevents mouse press from registering twice

  if (millis() - lapse > 500){

    save('pix.jpg');

    lapse = millis();

  } 

}