text: // The Nature of Code
  // Daniel Shiffman
  // http://natureofcode.com
  
  let movers = [];
  
  function setup() {
    createCanvas(640, 360);
    for (let i = 0; i < 20; i++) {
      movers[i] = new Mover(random(1, 4), 0, 0);
    }
  }
  
  function draw() {
    background(51);
  
    for (let i = 0; i < movers.length; i++) {
      let wind = createVector(0.01, 0);
      let gravity = createVector(0, 0.1 * movers[i].mass);
      movers[i].applyForce(wind);
      movers[i].applyForce(gravity);
      movers[i].update();
      movers[i].display();
      movers[i].checkEdges();
    }
  }
  