​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(0);

​

  myCircle("orangered", 5, 200, 200, 100, true);

  myCircle("lightblue", 5, 100, 100, 100, false);

}

​

function myCircle(col, weight, x, y, d, light) {

  if (light === true) {

    stroke(col);

  } else {

    stroke(200,200,0);

  }

  strokeWeight(weight);

  noFill();

  circle(x, y, d);

}

​