timer

gistfile1.cpp

struct LightTimer
{
    public:
        LightTimer() : i_expiryTime(0) {}
        explicit LightTimer(uint32 expiry) : i_expiryTime(expiry) {}

        //if Update() returns true - timer has elapsed
        //and you should call Reset() method
        bool Elapsed(uint32 diff) { return (i_expiryTime -= diff) < 0; }

        void Reset(uint32 interval) { i_expiryTime += interval; }
        uint32 TimeLeft() const { return i_expiryTime; }

    private:
        int32 i_expiryTime;
};