Timer.h

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org.
* See LICENSE.md file for Copyright information
*/
 
#ifndef SKYFIRE_TIMER_H
#define SKYFIRE_TIMER_H
 
#include "Common.h"
#include "Platform/TimeUtils.h"
 
inline uint32 getMSTime()
{
    return Skyfire::GetMSTime();
}
 
inline uint32 getMSTimeDiff(uint32 oldMSTime, uint32 newMSTime)
{
    return Skyfire::GetMSTimeDiff(oldMSTime, newMSTime);
}
 
inline uint32 GetMSTimeDiffToNow(uint32 oldMSTime)
{
    return Skyfire::GetMSTimeDiffToNow(oldMSTime);
}
 
struct IntervalTimer
{
public:
    IntervalTimer() : _interval(0), _current(0) { }
 
    void Update(time_t diff)
    {
        _current += diff;
        if (_current < 0)
            _current = 0;
    }
 
    bool Passed()
    {
        return _current >= _interval;
    }
 
    void Reset()
    {
        if (_current >= _interval)
            _current %= _interval;
    }
 
    void SetCurrent(time_t current)
    {
        _current = current;
    }
 
    void SetInterval(time_t interval)
    {
        _interval = interval;
    }
 
    time_t GetInterval() const
    {
        return _interval;
    }
 
    time_t GetCurrent() const
    {
        return _current;
    }
 
private:
    time_t _interval;
    time_t _current;
};
 
struct TimeTracker
{
public:
    TimeTracker(time_t expiry) : i_expiryTime(expiry) { }
 
    void Update(time_t diff)
    {
        i_expiryTime -= diff;
    }
 
    bool Passed() const
    {
        return i_expiryTime <= 0;
    }
 
    void Reset(time_t interval)
    {
        i_expiryTime = interval;
    }
 
    time_t GetExpiry() const
    {
        return i_expiryTime;
    }
 
private:
    time_t i_expiryTime;
};
 
struct TimeTrackerSmall
{
public:
    TimeTrackerSmall(uint32 expiry = 0) : i_expiryTime(expiry) { }
 
    void Update(int32 diff)
    {
        i_expiryTime -= diff;
    }
 
    bool Passed() const
    {
        return i_expiryTime <= 0;
    }
 
    void Reset(uint32 interval)
    {
        i_expiryTime = interval;
    }
 
    int32 GetExpiry() const
    {
        return i_expiryTime;
    }
 
private:
    int32 i_expiryTime;
};
 
struct PeriodicTimer
{
public:
    PeriodicTimer(int32 period, int32 start_time) : i_period(period), i_expireTime(start_time) { }
 
    bool Update(const uint32 diff)
    {
        if ((i_expireTime -= diff) > 0)
            return false;
 
        i_expireTime += i_period > int32(diff) ? i_period : diff;
        return true;
    }
 
    void SetPeriodic(int32 period, int32 start_time)
    {
        i_expireTime = start_time;
        i_period = period;
    }
 
    // Tracker interface
    void TUpdate(int32 diff) { i_expireTime -= diff; }
    bool TPassed() const { return i_expireTime <= 0; }
    void TReset(int32 diff, int32 period) { i_expireTime += period > diff ? period : diff; }
 
private:
    int32 i_period;
    int32 i_expireTime;
};
 
#endif