better version of UE_LOG

valhalla.h

#define FUNCTION_NAME_LINE_NR (FString(__FUNCTION__) + TEXT("(") + FString::FromInt(__LINE__) + TEXT(")"))

#ifdef _MSC_VER

#define VALHALLA_LOG(LogCategory, Verbosity, FormatString, ...)\
__if_exists(this)\
{\
	if(GEngine->GetWorldFromContextObject(this, EGetWorldErrorMode::ReturnNull))\
	{\
		switch(GEngine->GetWorldFromContextObject(this, EGetWorldErrorMode::ReturnNull)->GetNetMode())\
		{\
			case NM_Client:\
				UE_LOG(LogCategory,Verbosity,TEXT("%s Client %d: %s"), *FUNCTION_NAME_LINE_NR, (GPlayInEditorID - 1), *FString::Printf(FormatString, ##__VA_ARGS__))\
				break;\
			case NM_DedicatedServer:\
			case NM_ListenServer:\
				UE_LOG(LogCategory, Verbosity, TEXT("%s Server: %s"), *FUNCTION_NAME_LINE_NR, *FString::Printf(FormatString, ##__VA_ARGS__))\
				break;\
		}\
	}\
	else\
	{\
		UE_LOG(LogCategory,Verbosity,TEXT("%s %s"), *FUNCTION_NAME_LINE_NR, *FString::Printf(FormatString, ##__VA_ARGS__))\
	}\
}\
__if_not_exists(this)\
{\
	UE_LOG(LogCategory,Verbosity,TEXT("%s %s"), *FUNCTION_NAME_LINE_NR, *FString::Printf(FormatString, ##__VA_ARGS__))\
}

#else

#define VALHALLA_LOG(LogCategory, Verbosity, FormatString, ...)  UE_LOG(LogCategory,Verbosity,TEXT("%s %s"), *FUNCTION_NAME_LINE_NR, *FString::Printf(FormatString, ##__VA_ARGS__))\

#endif