text: // The Nature of Code
  // Daniel Shiffman
  // http://natureofcode.com
  
  let mover;
  
  function setup() {
    createCanvas(640,360);
    mover = new Mover(); 
  }
  
  function draw() {
    background(51);
  
    mover.update();
    mover.checkEdges();
    mover.display();
  }
  