Complete game within 20 sec

Question

game limit is 1 min but if user will complete game within 20 sec then he will get 500 bonus points
how to code for this
//this is count up timer script
var intID;
var endTime = getTimer()+(59*1000);
makeTime();
function updateTimer() {
  var t = endTime-getTimer();
  if (t>0) {
  makeTime();
  showTime(t);
  } else {
  stopTimer();
  showTime(0);
  gotoAndStop("over");
  trace("lost");
function makeTime() {
clearInterval(intID);
intID = setInterval(updateTimer, 100);
function stopTimer() {
  clearInterval(intID);
function showTime(t) {
  dispTime.text = (t/1000) >> 0;

Answer 1

Wherever in your code where the game is ended, you need to check the time value to see if it is <20 seconds and add the bonus to the score if it is.