​

function setup() {

  createCanvas(600, 400);

}

​

function draw() {

  background(0, 10);

  stroke(255);

​

  translate(width / 2, height / 2);

  scale(1, -1);

​

  strokeWeight(1);

  let r = 100;

  noFill();

  //circle(0, 0, r * 2);

​

  let x = r * cos(angle);

  let y = r * sin(angle * 2);

  strokeWeight(8);

  point(x, y);

  point(100, y);

  point(x, -100);

​

  angle += 0.05;

}

​