float UGameEngine::GetMaxTickRate(float DeltaTime, bool bAllowFrameRateSmoothing) const
{
float MaxTickRate = 0.f;
if (FPlatformProperties::SupportsWindowedMode() == false && !IsRunningDedicatedServer())
{
static const auto CVar = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.VSync"));
// Limit framerate on console if VSYNC is enabled to avoid jumps from 30 to 60 and back.
if( CVar->GetValueOnGameThread() != 0 )
{
if (SmoothedFrameRateRange.HasUpperBound())
{
MaxTickRate = SmoothedFrameRateRange.GetUpperBoundValue();
}
}
}
else
{
UWorld* World = NULL;
for (int32 WorldIndex = 0; WorldIndex < WorldList.Num(); ++WorldIndex)
{
if (WorldList[WorldIndex].WorldType == EWorldType::Game)
{
World = WorldList[WorldIndex].World();
break;
}
}
if( World )
{
UNetDriver* NetDriver = World->GetNetDriver();
// In network games, limit framerate to not saturate bandwidth.
if( NetDriver && (NetDriver->GetNetMode() == NM_DedicatedServer || (NetDriver->GetNetMode() == NM_ListenServer && NetDriver->bClampListenServerTickRate)))
{
// We're a dedicated server, use the LAN or Net tick rate.
MaxTickRate = FMath::Clamp( NetDriver->NetServerMaxTickRate, 10, 120 );
}
/*else if( NetDriver && NetDriver->ServerConnection )
{
if( NetDriver->ServerConnection->CurrentNetSpeed <= 10000 )
{
MaxTickRate = FMath::Clamp( MaxTickRate, 10.f, 90.f );
}
}*/
}
}
// See if the code in the base class wants to replace this
float SuperTickRate = Super::GetMaxTickRate(DeltaTime, bAllowFrameRateSmoothing);
if(SuperTickRate != 0.0)
{
MaxTickRate = SuperTickRate;
}
return MaxTickRate;
}
int32 GetPortFromNetDriver(FName InstanceName)
{
int32 Port = 0;
#if WITH_ENGINE
if (GEngine)
{
UWorld* World = GetWorldForOnline(InstanceName);
UNetDriver* NetDriver = World ? GEngine->FindNamedNetDriver(World, NAME_GameNetDriver) : NULL;
if (NetDriver && NetDriver->GetNetMode() < NM_Client)
{
FString AddressStr = NetDriver->LowLevelGetNetworkNumber();
int32 Colon = AddressStr.Find(":", ESearchCase::IgnoreCase, ESearchDir::FromEnd);
if (Colon != INDEX_NONE)
{
FString PortStr = AddressStr.Mid(Colon + 1);
if (!PortStr.IsEmpty())
{
Port = FCString::Atoi(*PortStr);
}
}
}
}
#endif
return Port;
}
void UShooterEngine::HandleNetworkFailure(UWorld *World, UNetDriver *NetDriver, ENetworkFailure::Type FailureType, const FString& ErrorString)
{
// Determine if we need to change the King state based on network failures.
// Only handle failure at this level for game or pending net drivers.
FName NetDriverName = NetDriver ? NetDriver->NetDriverName : NAME_None;
if (NetDriverName == NAME_GameNetDriver || NetDriverName == NAME_PendingNetDriver)
{
// If this net driver has already been unregistered with this world, then don't handle it.
if (World)
{
UNetDriver * NetDriver = FindNamedNetDriver(World, NetDriverName);
if (NetDriver)
{
bool bGoBackToMain = false;
ENetMode FailureNetMode = NetDriver->GetNetMode(); // NetMode of the driver that failed
switch (FailureType)
{
case ENetworkFailure::FailureReceived:
break;
case ENetworkFailure::PendingConnectionFailure:
break;
case ENetworkFailure::ConnectionLost:
case ENetworkFailure::ConnectionTimeout:
// only clients need to bail back to main if they lost connection
bGoBackToMain = (FailureNetMode == NM_Client);
break;
case ENetworkFailure::NetDriverAlreadyExists:
case ENetworkFailure::NetDriverCreateFailure:
case ENetworkFailure::OutdatedClient:
case ENetworkFailure::OutdatedServer:
default:
break;
}
if (bGoBackToMain)
{
UShooterGameInstance* const GI = Cast<UShooterGameInstance>(GameInstance);
if (GI)
{
const FString ReturnReason = NSLOCTEXT( "NetworkErrors", "HostDisconnect", "Lost connection to host." ).ToString();
const FString OKButton = NSLOCTEXT( "DialogButtons", "OKAY", "OK" ).ToString();
GI->ShowMessageThenGotoState( ReturnReason, OKButton, FString(), ShooterGameInstanceState::MainMenu );
}
}
}
}
}
// standard failure handling.
Super::HandleNetworkFailure(World, NetDriver, FailureType, ErrorString);
}