Lua 實現倒計時功能

--lua 實現倒計時功能

local size = ccdirector:shareddirector():getwinsize()
local scheduler = ccdirector:shareddirector():getscheduler()
local run_logic = nil
--時 分 秒 數值
local hour = 1
local minute = 0
local second = 0
--將int型別轉換為string型別
hour = hour..""
minute = minute..""
second = second..""
--當顯示數字為個位數時，前位用0補上
if string.len(hour) == 1 then
hour = "0"..hour
endif string.len(minute) == 1 then
minute = "0"..minute
endif string.len(second) == 1 then
second = "0"..second
end--建立時間標籤用以顯示
local time = cclabelttf:create("倒計時："..hour..":"..minute..":"..second,"thonburi",35)
time:setcolor(ccc3(0,255,0))
time:setposition(ccp(size.width*0.5,size.height*0.6))
mainlayer:addchild(time,1,123)
--倒計時更新函式
local function anticlockwiseupdate()
local time = mainlayer:getchildbytag(123)
time = tolua.cast(time,"cclabelttf")
second = second-1
if second == -1 then
if minute ~= -1 or hour ~= -1 then
minute = minute-1
second = 59
if minute == -1 then
if hour ~= -1 then
hour = hour-1
minute = 59
if hour == -1 then
--倒計時結束停止更新
if run_logic ~= nil then
scheduler:unschedulescriptentry(run_logic)
run_logic = nil
endsecond = 0
minute = 0
hour = 0
time:setcolor(ccc3(255,0,0)) --以紅色標識結束
endend
endend
endsecond = second..""
minute = minute..""
hour = hour..""
if string.len(second) == 1 then
second = "0"..second
endif string.len(minute) == 1 then
minute = "0"..minute
endif string.len(hour) == 1 then
hour = "0"..hour
endtime:setstring("倒計時："..hour..":"..minute..":"..second)
end--開始倒計時 每1秒呼叫一次anticlockwiseupdate方法
run_logic = scheduler:schedulescriptfunc(anticlockwiseupdate,1,false)
local scene = ccscene:create()
scene:addchild(mainlayer)
ccdirector:shareddirector():runwithscene(scene)

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