createCanvas(windowWidth, windowHeight);

}

​

let x0 = 0;

let x1 = 0;

let x2 = 0;

​

function draw() {

  background(220, 20, 120);

  let y0 = height / 3;

  let y1 = height / 2;

  let y2 = (2 / 3) * height;

​

  let x0start = 0;

  let x1start = 0;

  let x2start = width / 4;

​

  let x0end = width;

  let x1end = width / 2;

  let x2end = (3 / 4) * width;

​

  ellipse(x0, y0, 25);

  ellipse(x1, y1, 25);

  ellipse(x2, y2, 25);

​

  x0 += 6;

  if (x0 > x0end) {

    x0 = x0start;

  }

​

  x1 += 2;

  if (x1 > x1end) {

    x1 = x1start;

  }

​

  x2 += 4;

  if (x2 > x2end) {

    x2 = x2start;

  }

}

​