Function environment

src/core/environment.js:10–1345

(p5, fn, lifecycles)

// import { Vector } from '../math/p5.Vector';

function environment(p5, fn, lifecycles){
  const standardCursors = [C.ARROW, C.CROSS, C.HAND, C.MOVE, C.TEXT, C.WAIT];
  const isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';

  fn._frameRate = 0;
  fn._lastFrameTime = globalThis.performance.now();
  fn._targetFrameRate = 60;

  const windowPrint = isBrowser ? window.print : null;
  let windowPrintDisabled = false;

  lifecycles.presetup = function(){
    const events = [
      'resize'
    ];

    if(isBrowser){
      for(const event of events){
        window.addEventListener(event, this[`_on${event}`].bind(this), {
          passive: false,
          signal: this._removeSignal
        });
      }
    }
  };

  /**
   * Displays text in the web browser's console.
   *
   * `print()` is helpful for printing values while debugging. Each call to
   * `print()` creates a new line of text.
   *
   * Note: Call `print('\n')` to print a blank line. Calling `print()` without
   * an argument opens the browser's dialog for printing documents.
   *
   * @method print
   * @param {Any} contents content to print to the console.
   * @example
   * // META:norender
   * function setup() {
   *   // Prints "hello, world" to the console.
   *   print('hello, world');
   * }
   *
   * @example
   * // META:norender
   * function setup() {
   *   let name = 'ada';
   *   // Prints "hello, ada" to the console.
   *   print(`hello, ${name}`);
   * }
   */
  fn.print = function(...args) {
    if (!args.length && windowPrint !== null) {
      if (!windowPrintDisabled) {
        windowPrint();
        if (
          window.confirm(