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/* Starshatter: The Open Source Project
Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
Copyright (c) 1997-2006, Destroyer Studios LLC.
*/
#include "Clock.h"
#include <chrono>
static constexpr double NO_COMPRESSION {1.0};
static constexpr double STARTING_DELTA {1.0 / 60.0};
Clock::Clock() :
m_epoch {inner_clock::now()}
{
Reset();
}
void
Clock::Reset()
{
m_point = inner_clock::now();
m_compression = NO_COMPRESSION;
m_delta = STARTING_DELTA;
m_gui_delta = STARTING_DELTA;
}
double
Clock::Step()
{
const auto next = inner_clock::now();
const std::chrono::duration<double> delta = next - m_point;
m_point = next;
m_delta = delta.count() * m_compression;
m_gui_delta = delta.count();
return m_delta;
}
double
Clock::Delta() const
{
return m_delta;
}
double
Clock::GuiDelta() const
{
return m_gui_delta;
}
void
Clock::SetTimeCompression(double compression)
{
m_compression = compression;
}
double
Clock::TimeCompression() const
{
return m_compression;
}
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