​

function setup() {

  createCanvas(400, 400);

  x = width / 2

}

​

function draw() {

  background (230)

  if (mouseIsPressed) {

    fill('red');

    stroke('blue');

    strokeWeight(mouseX / 50);

    ellipse(mouseX, mouseY, 20, 20);

  } else {

    fill(255);

    stroke(0);

  }

  if (mouseX < 200){

    ellipse(200, 200, mouseX, mouseY);

  }

  if (mouseX >= 200){

    fill('green');

    strokeWeight( mouseX / 10);

    ellipse(200, 200, mouseX, mouseY);

  }

}