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#ifndef WIN32
#include <sys/time.h>
#else
#endif /** !WIN32 */
#include <stdlib.h>
#include "TimeKeeper.hpp"
#include "RandomNumberGenerators.hpp"
TimeKeeper::TimeKeeper(double presetDuration, double smoothDuration, double easterEgg)
{
_smoothDuration = smoothDuration;
_presetDuration = presetDuration;
_easterEgg = easterEgg;
#ifndef WIN32
gettimeofday ( &this->startTime, NULL );
#else
startTime = GetTickCount();
#endif /** !WIN32 */
UpdateTimers();
}
void TimeKeeper::UpdateTimers()
{
#ifndef WIN32
_currentTime = getTicks ( &startTime ) * 0.001;
#else
_currentTime = getTicks ( startTime ) * 0.001;
#endif /** !WIN32 */
_presetFrameA++;
_presetFrameB++;
}
void TimeKeeper::StartPreset()
{
_isSmoothing = false;
_presetTimeA = _currentTime;
_presetFrameA = 1;
_presetDurationA = sampledPresetDuration();
}
void TimeKeeper::StartSmoothing()
{
_isSmoothing = true;
_presetTimeB = _currentTime;
_presetFrameB = 1;
_presetDurationB = sampledPresetDuration();
}
void TimeKeeper::EndSmoothing()
{
_isSmoothing = false;
_presetTimeA = _presetTimeB;
_presetFrameA = _presetFrameB;
_presetDurationA = _presetDurationB;
}
bool TimeKeeper::CanHardCut()
{
return ((_currentTime - _presetTimeA) > HARD_CUT_DELAY);
}
double TimeKeeper::SmoothRatio()
{
return (_currentTime - _presetTimeB) / _smoothDuration;
}
bool TimeKeeper::IsSmoothing()
{
return _isSmoothing;
}
double TimeKeeper::GetRunningTime()
{
return _currentTime;
}
double TimeKeeper::PresetProgressA()
{
if (_isSmoothing) return 1.0;
else return (_currentTime - _presetTimeA) / _presetDurationA;
}
double TimeKeeper::PresetProgressB()
{
return (_currentTime - _presetTimeB) / _presetDurationB;
}
int TimeKeeper::PresetFrameB()
{
return _presetFrameB;
}
int TimeKeeper::PresetFrameA()
{
return _presetFrameA;
}
double TimeKeeper::sampledPresetDuration() {
#ifdef WIN32
return _presetDuration;
#else
return fmax(1, fmin(60, RandomNumberGenerators::gaussian
(_presetDuration, _easterEgg)));
#endif
}
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