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#ifndef OPENMW_COMPONENTS_MISC_TIMER_H
#define OPENMW_COMPONENTS_MISC_TIMER_H
#include "rng.hpp"
namespace Misc
{
enum class TimerStatus
{
Waiting,
Elapsed,
};
class DeviatingPeriodicTimer
{
public:
explicit DeviatingPeriodicTimer(float period, float deviation, float timeLeft)
: mPeriod(period)
, mDeviation(deviation)
, mTimeLeft(timeLeft)
{
}
TimerStatus update(float duration, Rng::Generator& prng)
{
if (mTimeLeft > 0)
{
mTimeLeft -= duration;
return TimerStatus::Waiting;
}
mTimeLeft = Rng::deviate(mPeriod, mDeviation, prng);
return TimerStatus::Elapsed;
}
void reset(float timeLeft) { mTimeLeft = timeLeft; }
private:
const float mPeriod;
const float mDeviation;
float mTimeLeft;
};
}
#endif
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