function canvasSupport(n) { return !!n.getContext; } function canvasApp() { if (document.getElementById('myCanvas')) { var canvasElement = document.getElementById('myCanvas'); canvasElement.parentNode.removeChild(canvasElement); } var Game_Interval; var winwidth = Math.max(window.screen.width, window.innerWidth); var matrixwidth = winwidth / 10; var nodecimal = Math.round(matrixwidth); var n = document.createElement('canvas'); n.id = 'myCanvas'; n.classList = 'background'; document.getElementById('canvasContainer').appendChild(n); if (canvasSupport(n)) { var e = n.getContext('2d'); var t = (n.width = window.innerWidth); var a = (n.height = window.innerHeight); var i = Array(nodecimal).join(0).split(''); 'undefined' != typeof Game_Interval && clearInterval(Game_interval), (Game_Interval = setInterval(o, 42)); } function o() { (e.fillStyle = 'rgba(0,0,0,.07)'), e.fillRect(0, 0, t, a), (e.fillStyle = color), (e.font = '10px monospace'); i.map(function(n, t) { (text = [...Array(1)].map(() => Math.random().toString(36)[2]).join('').toUpperCase()), (x = (t * 10) + 10), e.fillText(text, x, n), n > 100 + 3e4 * Math.random() ? (i[t] = 0) : (i[t] = n + 10); }); } } canvasApp();