createCanvas(800, 400);

}

​

function draw() {

  let c = color(0, mouseX, mouseY);

  strokeWeight(3);

  background(c);

  let value = mouseX/8;

    let m = map(value, 0, 100, 0, width);

    ellipse(m, 50, 0, 0);

  let value_2 = mouseX/6;

  let v = map(value_2, 0, 100, 0, width);

  ellipse(v, 350, 0, 0);

  let value_y = mouseY/4;

  let q = map(value_y, 0, 100, 0, height);

  ellipse(50, q, 0, 0);

  let value_y_2 = mouseY/2;

  let f = map(value_y_2, 0, 100, 0, height);

  ellipse(50, f, 0, 0);

  line(50, f, 50, q);

  line(50, q, m, 50);

  line(50, f, v, 350);

  line(m, 50, v, 350);

}