const rightText = 'TOSS ALL NIGHT';

const spacing = '   ';

​

let viewport = null;

let didScrollToTop = false;

​

function setup() {

  noCanvas();

  frameRate(30);

  // set the term's scrollback to the largest possible size

  // reference: https://github.com/xtermjs/xterm.js/issues/948

  term.setOption('scrollback', 4294967295);

  // this is hacky but couldn't figure out a better way to get the container's scrollHeight

  viewport = document.getElementsByClassName('xterm-viewport')[0];

}

​

function draw() {

  const leftOffset = int((term.cols - (leftText.length + rightText.length + spacing.length)) / 2);

  term.write(ansi.cursor.horizontalAbsolute(leftOffset));

  term.write(leftText);

  term.write(spacing);

  term.write(rightText);

  term.write('\r\n\n\n\n');

  if (frameCount % 2 === 0) {

    term.scrollLines(1);

  }

  // begin "infinite" scrolling

  if (viewport.scrollHeight > windowHeight && !didScrollToTop) {

    term.scrollToTop();

    didScrollToTop = true;

  }

}