Set up the timer countdown for the game with a local function called myTimer():

local myTimer = function()

Increment the seconds for the timer countdown by 1. With the counter text object, display the time using numSeconds. Print out numSeconds to see the countdown in the terminal window:

  numSeconds = numSeconds - 1
  counter.text = "Time: " .. tostring( numSeconds )
  print(numSeconds)

Create an if statement for when the timer runs out or if all the stars are gone. Within the block, cancel the timer and call callGameOver() to end the round. Close the myTimer() function with end:

  if numSeconds < 1 or stars.numChildren <= 0 then
    timer.cancel(timerInfo)
    panda:pause()
    restartTimer = timer.performWithDelay( 300, function() callGameOver(); end, 1 )
  end

end

Initiate the myTimer() function with a new local function called...