64 lines
1.1 KiB
C++
64 lines
1.1 KiB
C++
#include "timerclass.h"
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TimerClass::TimerClass()
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{
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}
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TimerClass::TimerClass(const TimerClass& other)
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{
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}
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TimerClass::~TimerClass()
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{
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}
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bool TimerClass::Initialize()
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{
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INT64 frequency;
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// Get the cycles per second speed for this system.
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QueryPerformanceFrequency((LARGE_INTEGER*)&frequency);
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if (frequency == 0)
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{
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return false;
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}
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// Store it in floating point.
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m_frequency = (float)frequency;
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// Get the initial start time.
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QueryPerformanceCounter((LARGE_INTEGER*)&m_startTime);
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return true;
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}
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void TimerClass::Frame()
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{
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INT64 currentTime;
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INT64 elapsedTicks;
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// Query the current time.
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QueryPerformanceCounter((LARGE_INTEGER*)¤tTime);
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// Calculate the difference in time since the last time we queried for the current time.
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elapsedTicks = currentTime - m_startTime;
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// Calculate the frame time.
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m_frameTime = (float)elapsedTicks / m_frequency;
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// Restart the timer.
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m_startTime = currentTime;
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return;
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}
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float TimerClass::GetTime()
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{
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return m_frameTime;
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}
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