createCanvas(1020, 1020);

  var bgc = random(0, 255);

  background(bgc);

}

​

let sksize = 10;

let recloc = 0;

​

function draw() {

  if (recloc < 1030) {

    rect(0, recloc, 1020,30);

    recloc++;

  } else {

    recloc = 0;

  }

  noStroke();

  fill(mouseX / 4, mouseX / 6 + mouseY /6, mouseY / 4, 100);

}

​