var canvas;

​

function setup() {

  canvas = createCanvas(windowWidth, windowHeight);

  canvas.position(0,0);

  canvas.style('z-index', '1');

  }

​

function draw() {

  noStroke();

  ellipseOrange = map(mouseY, 0, width, 0, 255);

  ellipsePink = map(mouseX, 0, width, 0, 255);

  rectBlue = map(mouseY, 0, height, 0, 255);

​

  if (mouseIsPressed) {

    fill(ellipseOrange, 80, 200);

  } else {    

    fill(ellipsePink, 100, 180);

  }

  ellipse(mouseX, mouseY, 400, 400);

}

​

function windowResized() {

  resizeCanvas(windowWidth, windowHeight);

}

​