在corona sdk的时间coutdown

Question

我试图使用Lua在Corona SDK中创建一个计时器倒计时.我对编码很安静,所以我从来没有设置过.任何想法如何我会这样做.

这是我到目前为止所拥有的

infoBar = display.newImage('infoBar.png', 280)
score = display.newText('0', 65, -2, native.systemFontBold, 14)
score:setTextColor(0)
timeLeft = display.newText('20', 175, -2, native.systemFontBold, 14)
timeLeft:setTextColor(0)

Answer 1

这样做......

local timeLimit = 20
timeLeft = display.newText(timeLimit, 160, 20, native.systemFontBold, 14)
timeLeft:setTextColor(255,0,0)

local function timerDown()
   timeLimit = timeLimit-1
   timeLeft.text = timeLimit
     if(timeLimit==0)then
        print("Time Out") -- or do your code for time out
     end
  end
timer.performWithDelay(1000,timerDown,timeLimit)