createCanvas(400, 400);

  background(255);

  textSize(12);

  text('Light Value:', 15, 25);

  fill(255, 0, 0);

  rect(70, 5, 45, 35, 5, 5, 5, 5);

​

  let button = createButton("Generate Value for Light");

  button.mousePressed(randomValue);

  let button2 = createButton("Restart");

  button2.mousePressed(clearEverything);

}

​

function draw() {

}

​

function randomValue() {

  let lightnum = int(random(0,50));

  textSize(32);

  //fill(10);

  stroke(0);

  fill(10);

  //background(30, 180, 200);

  //strokeWeight(1);

  text(lightnum, 75, 8, 50, 80);

  fill(255, 0, 0);

  rect(70, 5, 45, 35, 5, 5, 5, 5);

}

​

function clearEverything() {

  background(255);

​

}

​

function keyPressed(){

  if(keyCode === LEFT_ARROW){

    background(100, 50, 60);

  }

}