timer.cpp

极限赛车CarGameDemo DirectX9

#include "StdAfx.h"
#include "timer.h"

Timer::Timer()
{

}

Timer::~Timer()
{

}

bool Timer::Init()
{
	_beginTime = 0.0f;
	_endTime = 0.0f;
	_lastTime = 0.0f;
	_isBegin  =false;
	_isEnd	  =false;

	return true;
}

void Timer::Begin()
{
	if(!_isBegin)
	{
		_beginTime = (float)::timeGetTime()*0.001f;
		_isBegin = true;
	}
	if(!_isEnd)
		_lastTime = (float)::timeGetTime()*0.001f - _beginTime;
}

void Timer::End()
{
	if(!_isEnd)
	{
		_endTime = (float)::timeGetTime()*0.001f;
		_isEnd = true;
	}
	
}

float Timer::GetLastTime()
{
	return _lastTime;
}

bool Timer::Wait(float time)
{
	Begin();
	if( _lastTime >= time )
	{
		End();
		return true;
	}
	else
		return false;
}