​

function setup() {

  createCanvas(400, 400);

  r = floor(random(1, 100));

}

​

function draw() {

  background(255);

  noStroke();

  fill(0);

  textSize(100);

  textAlign(CENTER, CENTER);

  text(r, width / 2, height / 2);

  textSize(30);

  text("Random Number Generator", width / 2, 100);

}

​

function keyPressed() {

  if (key == " ") {

    r = floor(random(1, 100));

  }

}