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;
}
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;
}
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);
}
bool UActorComponent::CallRemoteFunction( UFunction* Function, void* Parameters, FOutParmRec* OutParms, FFrame* Stack )
{
if (AActor* MyOwner = GetOwner())
{
UNetDriver* NetDriver = MyOwner->GetNetDriver();
if (NetDriver)
{
NetDriver->ProcessRemoteFunction(MyOwner, Function, Parameters, OutParms, Stack, this);
return true;
}
}
return false;
}
bool UGAAbilityBase::CallRemoteFunction(UFunction* Function, void* Parameters, FOutParmRec* OutParms, FFrame* Stack)
{
check(!HasAnyFlags(RF_ClassDefaultObject));
check(POwner != NULL);
UNetDriver* NetDriver = POwner->GetNetDriver();
if (NetDriver)
{
NetDriver->ProcessRemoteFunction(POwner, Function, Parameters, OutParms, Stack, this);
return true;
}
return false;
}
bool UGameplayAbility::CallRemoteFunction(UFunction* Function, void* Parameters, FOutParmRec* OutParms, FFrame* Stack)
{
check(!HasAnyFlags(RF_ClassDefaultObject));
check(GetOuter() != NULL);
AActor* Owner = CastChecked<AActor>(GetOuter());
UNetDriver* NetDriver = Owner->GetNetDriver();
if (NetDriver)
{
NetDriver->ProcessRemoteFunction(Owner, Function, Parameters, OutParms, Stack, this);
return true;
}
return false;
}
bool UActorComponent::CallRemoteFunction( UFunction* Function, void* Parameters, FFrame* Stack )
{
AActor* Owner = GetOwner();
if (Owner == NULL)
{
return false;
}
UNetDriver* NetDriver = Owner->GetNetDriver();
if (NetDriver)
{
NetDriver->ProcessRemoteFunction(Owner, Function, Parameters, Stack, this);
return true;
}
return false;
}
bool NUTNet::IsSteamNetDriverAvailable()
{
bool bReturnVal = false;
UGameEngine* GameEngine = Cast<UGameEngine>(GEngine);
if (GameEngine != NULL)
{
bool bFoundSteamDriver = false;
const TCHAR* SteamDriverClassName = TEXT("OnlineSubsystemSteam.SteamNetDriver");
for (int i=0; i<GameEngine->NetDriverDefinitions.Num(); i++)
{
if (GameEngine->NetDriverDefinitions[i].DefName == NAME_GameNetDriver)
{
if (GameEngine->NetDriverDefinitions[i].DriverClassName == SteamDriverClassName)
{
bFoundSteamDriver = true;
}
break;
}
}
if (bFoundSteamDriver)
{
UClass* SteamNetDriverClass = StaticLoadClass(UNetDriver::StaticClass(), NULL, SteamDriverClassName, NULL, LOAD_Quiet);
if (SteamDriverClassName != NULL)
{
UNetDriver* SteamNetDriverDef = Cast<UNetDriver>(SteamNetDriverClass->GetDefaultObject());
bReturnVal = SteamNetDriverDef != NULL && SteamNetDriverDef->IsAvailable();
}
}
}
return bReturnVal;
}
/**
* Removes the actor from its level's actor list and generally cleans up the engine's internal state.
* What this function does not do, but is handled via garbage collection instead, is remove references
* to this actor from all other actors, and kill the actor's resources. This function is set up so that
* no problems occur even if the actor is being destroyed inside its recursion stack.
*
* @param ThisActor Actor to remove.
* @param bNetForce [opt] Ignored unless called during play. Default is false.
* @param bShouldModifyLevel [opt] If true, Modify() the level before removing the actor. Default is true.
* @return true if destroy, false if actor couldn't be destroyed.
*/
bool UWorld::DestroyActor( AActor* ThisActor, bool bNetForce, bool bShouldModifyLevel )
{
check(ThisActor);
check(ThisActor->IsValidLowLevel());
//UE_LOG(LogSpawn, Log, "Destroy %s", *ThisActor->GetClass()->GetName() );
if (ThisActor->GetWorld() == NULL)
{
UE_LOG(LogSpawn, Warning, TEXT("Destroying %s, which doesn't have a valid world pointer"), *ThisActor->GetPathName());
}
// If already on list to be deleted, pretend the call was successful.
// We don't want recursive calls to trigger destruction notifications multiple times.
if (ThisActor->IsPendingKillPending())
{
return true;
}
// In-game deletion rules.
if( IsGameWorld() )
{
// Never destroy the world settings actor. This used to be enforced by bNoDelete and is actually needed for
// seamless travel and network games.
if (GetWorldSettings() == ThisActor)
{
return false;
}
// Can't kill if wrong role.
if( ThisActor->Role!=ROLE_Authority && !bNetForce && !ThisActor->bNetTemporary )
{
return false;
}
// Don't destroy player actors.
APlayerController* PC = Cast<APlayerController>(ThisActor);
if ( PC )
{
UNetConnection* C = Cast<UNetConnection>(PC->Player);
if( C )
{
if( C->Channels[0] && C->State!=USOCK_Closed )
{
C->bPendingDestroy = true;
C->Channels[0]->Close();
}
return false;
}
}
}
else
{
ThisActor->Modify();
}
// Prevent recursion
//FMarkActorIsBeingDestroyed MarkActorIsBeingDestroyed(ThisActor);
// Notify the texture streaming manager about the destruction of this actor.
IStreamingManager::Get().NotifyActorDestroyed( ThisActor );
// Tell this actor it's about to be destroyed.
ThisActor->Destroyed();
// Detach this actor's children
TArray<AActor*> AttachedActors;
ThisActor->GetAttachedActors(AttachedActors);
if (AttachedActors.Num() > 0)
{
TInlineComponentArray<USceneComponent*> SceneComponents;
ThisActor->GetComponents(SceneComponents);
for (TArray< AActor* >::TConstIterator AttachedActorIt(AttachedActors); AttachedActorIt; ++AttachedActorIt)
{
AActor* ChildActor = *AttachedActorIt;
if (ChildActor != NULL)
{
for (auto SceneCompIter = SceneComponents.CreateIterator(); SceneCompIter; ++SceneCompIter)
{
ChildActor->DetachSceneComponentsFromParent(*SceneCompIter, true);
}
#if WITH_EDITOR
if( GIsEditor )
{
GEngine->BroadcastLevelActorDetached(ChildActor, ThisActor);
}
#endif
}
}
}
// Detach from anything we were attached to
USceneComponent* RootComp = ThisActor->GetRootComponent();
if( RootComp != NULL && RootComp->AttachParent != NULL)
{
AActor* OldParentActor = RootComp->AttachParent->GetOwner();
if (OldParentActor)
{
OldParentActor->Modify();
}
ThisActor->DetachRootComponentFromParent();
#if WITH_EDITOR
if( GIsEditor )
{
GEngine->BroadcastLevelActorDetached(ThisActor, OldParentActor);
}
#endif
}
ThisActor->ClearComponentOverlaps();
// If this actor has an owner, notify it that it has lost a child.
if( ThisActor->GetOwner() )
{
ThisActor->SetOwner(NULL);
}
// Notify net players that this guy has been destroyed.
UNetDriver* ActorNetDriver = GEngine->FindNamedNetDriver(this, ThisActor->NetDriverName);
if (ActorNetDriver)
{
ActorNetDriver->NotifyActorDestroyed(ThisActor);
}
if ( DemoNetDriver )
{
DemoNetDriver->NotifyActorDestroyed( ThisActor );
}
// Remove the actor from the actor list.
RemoveActor( ThisActor, bShouldModifyLevel );
// Invalidate the lighting cache in the Editor. We need to check for GIsEditor as play has not begun in network game and objects get destroyed on switching levels
if ( GIsEditor )
{
ThisActor->InvalidateLightingCache();
#if WITH_EDITOR
GEngine->BroadcastLevelActorDeleted(ThisActor);
#endif
}
// Clean up the actor's components.
ThisActor->UnregisterAllComponents();
// Mark the actor and its direct components as pending kill.
ThisActor->MarkPendingKill();
ThisActor->MarkPackageDirty();
ThisActor->MarkComponentsAsPendingKill();
// Unregister the actor's tick function
const bool bRegisterTickFunctions = false;
const bool bIncludeComponents = true;
ThisActor->RegisterAllActorTickFunctions(bRegisterTickFunctions, bIncludeComponents);
// Return success.
return true;
}
