www.pudn.com > Tetris.rar > CGameTimer.cpp

#include  
#include  
 
#include "CGameTimer.h" 
#include "MGameTimerObserver.h" 
 
//////////////////////////////////////////////////////////////////////////// 
// construct and destruct 
 
// NewL() 
CGameTimer* CGameTimer::NewL(MGameTimerObserver& aObserver) 
{ 
	CGameTimer* self = new (ELeave) CGameTimer(aObserver); 
	CleanupStack::PushL(self); 
 
	self->ConsturctL(); 
 
	CleanupStack::Pop(); 
 
	return self; 
} 
 
// ConstructL() 
void CGameTimer::ConsturctL() 
{ 
	iTick = 100000; 
	iPeriodicTimer = CPeriodic::NewL(CActive::EPriorityStandard); 
} 
 
// CGameTimer() 
CGameTimer::CGameTimer(MGameTimerObserver& aObserver) : iObserver( aObserver ) 
{} 
 
// ~ 
CGameTimer::~CGameTimer() 
{ 
	iPeriodicTimer->Cancel(); 
	delete iPeriodicTimer; 
	iPeriodicTimer = NULL; 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// Other Method 
 
// Start() 
void CGameTimer::Start() 
{ 
	if( !iPeriodicTimer->IsActive() ) 
		iPeriodicTimer->Start(iTick, iTick, TCallBack(CGameTimer::Period, this) ); 
} 
 
// Cancel() 
void CGameTimer::Cancel() 
{ 
	iPeriodicTimer->Cancel(); 
} 
 
// SetTickTime 
void CGameTimer::SetTickTime(TTimeIntervalMicroSeconds32 aTickTime) 
{ 
	iTick = aTickTime; 
	Cancel(); 
	Start(); 
} 
 
 
// Period() 
TInt CGameTimer::Period(TAny* aPtr) 
{ 
	return ((CGameTimer*)aPtr)->DoCall(); 
} 
 
// DoCall() 
TInt CGameTimer::DoCall() 
{ 
	return iObserver.DoGameFrameL(); 
}