Chrome easter egg, T-Rex for waiting rooms and so.

trexj.js

/*
T-Rex J.
T-Rex for waiting rooms and so.

see how it works: https://youtu.be/-D2s_9RCOrw

go this url: chrome://network-error/-106
press ctrl + shift + j

paste the code below and enjoy what you watch */

(function(){
	'use strict';

	var timeout,
		r = window.Runner();

	function tryToJump(){
		r.onKeyDown({preventDefault: function(){}, target:'', type: window.Runner.events.TOUCHSTART, currentTarget: r.containerEl });
	}

	function fullWidthZoom(){
		//default width of .runner-canvas is 600px
		var width = document.body.clientWidth,
			scale = (width  / 6); /* (width * 100/600) */
		document.body.style.zoom = scale + '%';
		document.head.innerHTML = document.head.innerHTML + '<style>h1, #main-message, #suggestions-list, .error-code  {display: none } document, body { overflow:hidden}</style>';
	}

	function tick(){
		var nextObstacle = r.horizon.obstacles && r.horizon.obstacles.length > 0
			? r.horizon.obstacles[0] : false;

		if (typeof r.currentSpeed === 'number' &&
			nextObstacle &&
			nextObstacle.xPos < r.currentSpeed * 19 &&
			!r.tRex.jumping){
			if (nextObstacle.yPos > 60){
				tryToJump();
			}
		}
		if (!r.activated || r.crashed){
			if (r.crashed){
				tryToJump(); /* clearInterval(timeout); */
			}
		}
	}
	fullWidthZoom();
	tryToJump();
	timeout = setInterval(tick, 10);
})();

/*
This is just a toy written by Loksly (https://github.com/Loksly) just for fun.

Original T-Rex Runner code can be found at the link below. Check there for the credits and license.
https://chromium.googlesource.com/chromium/src.git/+/master/components/neterror/resources/offline.js
*/