// FUNCTION: reset()
// Initializes data members that are serialized.
void CvRandom::reset(unsigned long ulSeed)
{
//--------------------------------
// Uninit class
uninit();
recordCallStack();
m_ulRandomSeed = ulSeed;
m_ulResetCount++;
}
unsigned short CvRandom::get(unsigned short usNum, const char* pszLog)
{
recordCallStack();
m_ulCallCount++;
unsigned long ulNewSeed = ((RANDOM_A * m_ulRandomSeed) + RANDOM_C);
unsigned short us = ((unsigned short)((((ulNewSeed >> RANDOM_SHIFT) & MAX_UNSIGNED_SHORT) * ((unsigned long)usNum)) / (MAX_UNSIGNED_SHORT + 1)));
if ( GC.getLogging() )
{
int iRandLogging = GC.getRandLogging();
if (iRandLogging > 0 && (m_bSynchronous || (iRandLogging & RAND_LOGGING_ASYNCHRONOUS_FLAG) != 0))
{
CvGame& kGame = GC.getGame();
if (kGame.getTurnSlice() > 0 || ((iRandLogging & RAND_LOGGING_PREGAME_FLAG) != 0))
{
FILogFile* pLog = LOGFILEMGR.GetLog("RandCalls.csv", FILogFile::kDontTimeStamp, "Game Turn, Turn Slice, Range, Value, Seed, Instance, Type, Location\n");
if (pLog)
{
char szOut[1024] = {0};
sprintf_s(szOut, "%d, %d, %u, %u, %u, %8x, %s, %s\n", kGame.getGameTurn(), kGame.getTurnSlice(), (uint)usNum, (uint)us, getSeed(), (uint)this, m_bSynchronous?"sync":"async", (pszLog != NULL)?pszLog:"Unknown");
pLog->Msg(szOut);
#if !defined(FINAL_RELEASE)
if ((iRandLogging & RAND_LOGGING_CALLSTACK_FLAG) != 0)
{
#ifdef _DEBUG
if (m_bExtendedCallStackDebugging)
{
// Use the callstack from the extended callstack debugging system
const FCallStack &callStack = m_kCallStacks.back();
std::string stackTrace = callStack.toString(true, 6);
pLog->Msg(stackTrace.c_str());
}
else
#endif
{
#ifdef WIN32
// Get callstack directly
FCallStack callStack;
FDebugHelper::GetInstance().GetCallStack(&callStack, 0, 8);
std::string stackTrace = callStack.toString(true, 6);
pLog->Msg(stackTrace.c_str());
#endif
}
}
#endif
}
}
}
}
m_ulRandomSeed = ulNewSeed;
return us;
}
void CvRandom::reseed(unsigned long ulNewValue)
{
recordCallStack();
m_ulResetCount++;
m_ulRandomSeed = ulNewValue;
}