Function p5

libraries/p5.js:11271–11774

(sketch, node, sync)

 * @return {p5}                 a p5 instance
 */
var p5 = function(sketch, node, sync) {

  if (arguments.length === 2 && typeof node === 'boolean') {
    sync = node;
    node = undefined;
  }

  //////////////////////////////////////////////
  // PUBLIC p5 PROPERTIES AND METHODS
  //////////////////////////////////////////////


  /**
   * Called directly before setup(), the preload() function is used to handle
   * asynchronous loading of external files. If a preload function is
   * defined, setup() will wait until any load calls within have finished.
   * Nothing besides load calls should be inside preload (loadImage,
   * loadJSON, loadFont, loadStrings, etc).<br><br>
   * By default the text "loading..." will be displayed. To make your own
   * loading page, include an HTML element with id "p5_loading" in your
   * page. More information <a href="http://bit.ly/2kQ6Nio">here</a>.
   *
   * @method preload
   * @example
   * <div><code>
   * var img;
   * var c;
   * function preload() {  // preload() runs once
   *   img = loadImage('assets/laDefense.jpg');
   * }
   *
   * function setup() {  // setup() waits until preload() is done
   *   img.loadPixels();
   *   // get color of middle pixel
   *   c = img.get(img.width/2, img.height/2);
   * }
   *
   * function draw() {
   *   background(c);
   *   image(img, 25, 25, 50, 50);
   * }
   * </code></div>
   *
   * @alt
   * nothing displayed
   *
   */

  /**
   * The setup() function is called once when the program starts. It's used to
   * define initial environment properties such as screen size and background
   * color and to load media such as images and fonts as the program starts.
   * There can only be one setup() function for each program and it shouldn't
   * be called again after its initial execution.
   * <br><br>
   * Note: Variables declared within setup() are not accessible within other
   * functions, including draw().
   *