感觉cocos的定时器不好用， 自已封装了一个

--******************************************************************
-- 文件名:	TimerTgr.lu
-- 版 权:	(C) 从这里开始
-- 创建人:	陈泽丹
-- 日 期:	2014-10-26 14:12
-- 版 本:	1.0
-- 描 述:	
--************************** 修改记录 ******************************
-- 修改人:
-- 日 期:
-- 描 述:
--******************************************************************



-- 定时器
function TimerBuf()
    local public, protected = IBuf()
    public = public or {}
    protected = protected or {}
    local private = {}

    --------------------------------------------------------------------
    -- public:
    -- 运行
    function public:create( _times, _debugInfo )
        private.times = _times
        protected.debugInfo = _debugInfo
    end

    -- 释放
    function public:release()
        if public:isRun() then
            public:stop()
        end
    end

    -- 开启
    function public:start()
        if public:isRun() then
            public:stop()
        end
        local function onTime()
            self:onTime()
        end
        private.tgr = cc.Director:getInstance():getScheduler():scheduleScriptFunc(onTime, private.times, false)
        protected:doStart()
        return true
    end

    -- 结束
    function public:stop()
        if public:isRun() then
            protected:doStop()
            cc.Director:getInstance():getScheduler():unscheduleScriptEntry( private.tgr )
            private.tgr = nil
        end
    end

    -- 回调
    function public:onTime( ... )
        cclog( "TimerBuf:onTime is nil" )
    end

    --------------------------------------------------------------------
    return public
end



-- 定时器
function TimerExBuf()
    local public, protected = IBuf()
    public = public or {}
    protected = protected or {}
    local private = 
    {
        intervalTimer   = TimerBuf(),
        timesTimer      = TimerBuf(),
    }

    --------------------------------------------------------------------
    -- public:
    -- 运行
    function public:create( _interval, _times, _debugInfo )
        protected.debugInfo = _debugInfo
        private.intervalTimer:create( _interval, _debugInfo )
        private.timesTimer:create( _times, _debugInfo )
        function private.intervalTimer:onTime()
            private.timesTimer:start()
            private.intervalTimer:stop()
        end
        function private.timesTimer:onTime()
            public:onTime()
        end
    end

    -- 释放
    function public:release()
        if public:isRun() then
            public:stop()
        end
    end

    -- 开启
    function public:start()
        if public:isRun() then
            public:stop()
        end
        private.intervalTimer:start()
        protected:doStart()
        return true
    end

    -- 结束
    function public:stop()
        if public:isRun() then
            protected:doStop()
        end
        if private.intervalTimer:isRun() then
            private.intervalTimer:stop()
        end
        if private.timesTimer:isRun() then
            private.timesTimer:stop()
        end
    end

    -- 回调
    function public:onTime( ... )
        cclog( "TimerExBuf:onTime is nil" )
    end

    --------------------------------------------------------------------
    return public
end