createCanvas(400, 400);

  noLoop()

}

​

function draw() {

  background(220);

  let x1 = random(width)

  let y1 = random(width)

  let x2 = random(width)

  let y2 = random(width)

  let r = dist(x1, y1, x2, y2) / 2

  let theta = atan2(y2 - y1, x2 - x1)

  fill(0)

  ellipse(x1, y1, 4, 4)

  let angle = theta + random([-1, 1]) * random(radians(10))

  let c1x = x1 + r * cos(angle)

  let c1y = y1 + r * sin(angle)

  ellipse(x2, y2, 4, 4)

  ellipse(c1x, c1y, 4, 4)

  noFill();

  beginShape()

  vertex(x1, y1)

  bezierVertex(c1x, c1y, x2, y2, x2, y2)

  endShape()

}

​

function mousePressed() {

  redraw()

}