C++ GetNetMode函數代碼示例

void UGISInventoryBaseComponent::AddItemOnSlot(const FGISSlotInfo& TargetSlotType, const FGISSlotInfo& LastSlotType)
{
	//Before we start swapping item, let's check if tags match!
	if (!TargetSlotType.CurrentInventoryComponent->RequiredTags.MatchesAny(LastSlotType.CurrentInventoryComponent->OwnedTags, false))
		return;
	
	//next check should be against item tags, but that's later!


	//Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotTabIndex].ItemData
	if (TargetSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData == nullptr)
	{

		TWeakObjectPtr<UGISItemData> TargetItem = LastSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[LastSlotType.SlotTabIndex].TabSlots[LastSlotType.SlotIndex].ItemData;
		TWeakObjectPtr<UGISItemData> LastItem = TargetSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData; //Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData;

		TargetSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData = TargetItem;
		LastSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[LastSlotType.SlotTabIndex].TabSlots[LastSlotType.SlotIndex].ItemData = nullptr;
		
		TargetItem->OnItemAddedToSlot();
		//FGISSlotSwapInfo SlotSwapInfo;

		SlotSwapInfo.LastSlotIndex = LastSlotType.SlotIndex;
		SlotSwapInfo.LastTabIndex = LastSlotType.SlotTabIndex;
		SlotSwapInfo.LastSlotData = LastItem;
		SlotSwapInfo.LastSlotComponent = LastSlotType.CurrentInventoryComponent;
		SlotSwapInfo.TargetSlotIndex = TargetSlotType.SlotIndex;
		SlotSwapInfo.TargetTabIndex = TargetSlotType.SlotTabIndex;
		SlotSwapInfo.TargetSlotData = TargetItem;
		SlotSwapInfo.TargetSlotComponent = TargetSlotType.CurrentInventoryComponent;
		if (GetNetMode() == ENetMode::NM_Standalone)
			OnItemSlotSwapped.Broadcast(SlotSwapInfo);
		ClientSlotSwap(SlotSwapInfo);
	}
	else
	{
		TWeakObjectPtr<UGISItemData> TargetItem = LastSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[LastSlotType.SlotTabIndex].TabSlots[LastSlotType.SlotIndex].ItemData;
		TWeakObjectPtr<UGISItemData> LastItem = TargetSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData; //Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData;

		TargetSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[TargetSlotType.SlotTabIndex].TabSlots[TargetSlotType.SlotIndex].ItemData = TargetItem;
		LastSlotType.CurrentInventoryComponent->Tabs.InventoryTabs[LastSlotType.SlotTabIndex].TabSlots[LastSlotType.SlotIndex].ItemData = LastItem;
		TargetItem->OnItemAddedToSlot();
		LastItem->OnItemAddedToSlot();

		//FGISSlotSwapInfo SlotSwapInfo;
		SlotSwapInfo.LastSlotIndex = LastSlotType.SlotIndex;
		SlotSwapInfo.LastTabIndex = LastSlotType.SlotTabIndex;
		SlotSwapInfo.LastSlotData = LastItem;
		SlotSwapInfo.LastSlotComponent = LastSlotType.CurrentInventoryComponent;
		SlotSwapInfo.TargetSlotIndex = TargetSlotType.SlotIndex;
		SlotSwapInfo.TargetTabIndex = TargetSlotType.SlotTabIndex;
		SlotSwapInfo.TargetSlotData = TargetItem;
		SlotSwapInfo.TargetSlotComponent = TargetSlotType.CurrentInventoryComponent;
		if (GetNetMode() == ENetMode::NM_Standalone)
			OnItemSlotSwapped.Broadcast(SlotSwapInfo);
		ClientSlotSwap(SlotSwapInfo);
	}
}

void AARCharacter::PossessedBy(AController* NewController)
{
	ARPController = Cast<AARPlayerController>(NewController);
	if ((GetNetMode() == ENetMode::NM_Standalone
		|| GetNetMode() == ENetMode::NM_Client)
		&& ARPController)
	{
		Abilities->PCOwner = ARPController;
		Abilities->InitializeGUI();
	}
	Super::PossessedBy(NewController);
}

void AShooterWeapon_Instant::ProcessInstantHit_Confirmed(const FHitResult& Impact, const FVector& Origin, const FVector& ShootDir, int32 RandomSeed, float ReticleSpread)
{
    // handle damage
    if (ShouldDealDamage(Impact.GetActor()))
    {
        DealDamage(Impact, ShootDir);
    }

    // play FX on remote clients
    if (Role == ROLE_Authority)
    {
        HitNotify.Origin = Origin;
        HitNotify.RandomSeed = RandomSeed;
        HitNotify.ReticleSpread = ReticleSpread;
    }

    // play FX locally
    if (GetNetMode() != NM_DedicatedServer)
    {
        const FVector EndTrace = Origin + ShootDir * InstantConfig.WeaponRange;
        const FVector EndPoint = Impact.GetActor() ? Impact.ImpactPoint : EndTrace;

        SpawnTrailEffect(EndPoint);
        SpawnImpactEffects(Impact);
    }
}

void AShooterWeapon_Instant::ProcessInstantHit(const FHitResult& Impact, const FVector& Origin, const FVector& ShootDir, int32 RandomSeed, float ReticleSpread)
{
    if (MyPawn && MyPawn->IsLocallyControlled() && GetNetMode() == NM_Client)
    {
        // if we're a client and we've hit something that is being controlled by the server
        if (Impact.GetActor() && Impact.GetActor()->GetRemoteRole() == ROLE_Authority)
        {
            // notify the server of the hit
            ServerNotifyHit(Impact, ShootDir, RandomSeed, ReticleSpread);
        }
        else if (Impact.GetActor() == NULL)
        {
            if (Impact.bBlockingHit)
            {
                // notify the server of the hit
                ServerNotifyHit(Impact, ShootDir, RandomSeed, ReticleSpread);
            }
            else
            {
                // notify server of the miss
                ServerNotifyMiss(ShootDir, RandomSeed, ReticleSpread);
            }
        }
    }

    // process a confirmed hit
    ProcessInstantHit_Confirmed(Impact, Origin, ShootDir, RandomSeed, ReticleSpread);
}

void APawn::PostInitializeComponents()
{
	Super::PostInitializeComponents();
	
	if (!IsPendingKill())
	{
		GetWorld()->AddPawn( this );

		// Automatically add Controller to AI Pawns if we are allowed to.
		if (AutoPossessPlayer == EAutoReceiveInput::Disabled)
		{
			if (AutoPossessAI != EAutoPossessAI::Disabled && Controller == NULL && GetNetMode() != NM_Client)
			{
				const bool bPlacedInWorld = (GetWorld()->bStartup);
				if ((AutoPossessAI == EAutoPossessAI::PlacedInWorldOrSpawned) ||
					(AutoPossessAI == EAutoPossessAI::PlacedInWorld && bPlacedInWorld) ||
					(AutoPossessAI == EAutoPossessAI::Spawned && !bPlacedInWorld))
				{
					SpawnDefaultController();
				}
			}
		}

		// update movement component's nav agent values
		UpdateNavAgent();
	}
}

void APawn::PreInitializeComponents()
{
	Super::PreInitializeComponents();

	if (Instigator == nullptr)
	{
		Instigator = this;
	}

	if (AutoPossessPlayer != EAutoReceiveInput::Disabled && GetNetMode() != NM_Client )
	{
		const int32 PlayerIndex = int32(AutoPossessPlayer.GetValue()) - 1;

		APlayerController* PC = UGameplayStatics::GetPlayerController(this, PlayerIndex);
		if (PC)
		{
			PC->Possess(this);
		}
		else
		{
			GetWorld()->PersistentLevel->RegisterActorForAutoReceiveInput(this, PlayerIndex);
		}
	}

	UpdateNavigationRelevance();
}

void APawn::PossessedBy(AController* NewController)
{
	AController* const OldController = Controller;

	Controller = NewController;
	ForceNetUpdate();

	if (Controller->PlayerState != NULL)
	{
		PlayerState = Controller->PlayerState;
	}

	if (APlayerController* PlayerController = Cast<APlayerController>(Controller))
	{
		if (GetNetMode() != NM_Standalone)
		{
			SetReplicates(true);
			SetAutonomousProxy(true);
		}
	}
	else
	{
		CopyRemoteRoleFrom(GetDefault<APawn>());
	}

	// dispatch Blueprint event if necessary
	if (OldController != NewController)
	{
		ReceivePossessed(Controller);
	}
}

void AWorldSettings::PreInitializeComponents()
{
	Super::PreInitializeComponents();

	// create the emitter pool
	// we only need to do this for the persistent level's WorldSettings as sublevel actors will have their WorldSettings set to it on association
	if (GetNetMode() != NM_DedicatedServer && IsInPersistentLevel())
	{
		UWorld* World = GetWorld();
		check(World);		

		// only create once - 
		if (World->MyParticleEventManager == NULL && !GEngine->ParticleEventManagerClassPath.IsEmpty())
		{
			TSubclassOf<AParticleEventManager> ParticleEventManagerClass = Cast<UClass>(StaticLoadObject(UClass::StaticClass(), NULL, *GEngine->ParticleEventManagerClassPath, NULL, LOAD_NoWarn, NULL));
			if (ParticleEventManagerClass != NULL)
			{
				FActorSpawnParameters SpawnParameters;
				SpawnParameters.Owner = this;
				SpawnParameters.Instigator = Instigator;
				World->MyParticleEventManager = World->SpawnActor<AParticleEventManager>(ParticleEventManagerClass, SpawnParameters );
			}
		}
	}
}

void UGISInventoryBaseComponent::CopyItemsFromOtherInventoryTab(class UGISInventoryBaseComponent* OtherIn, int32 OtherTabIndex, int32 TargetTabIndex)
{
	if (OtherIn)
	{
		int32 OtherSlotCount = OtherIn->GetSlotsInTab(OtherTabIndex);
		int32 TargetSlotCount = GetSlotsInTab(TargetTabIndex);
		if (OtherSlotCount > TargetSlotCount)
		{
			for (int32 Index = 0; Index < TargetSlotCount; Index++)
			{
				SetItemDataInSlot(TargetTabIndex, Index, OtherIn->GetItemDataInSlot(OtherTabIndex,Index));
				OnCopyItemsFromOtherInventoryTab(Tabs.InventoryTabs[TargetTabIndex].TabSlots[Index].ItemData);
			}
		}
		else
		{
			for (int32 Index = 0; Index < OtherSlotCount; Index++)
			{
				SetItemDataInSlot(TargetTabIndex, Index, OtherIn->GetItemDataInSlot(OtherTabIndex, Index));
				OnCopyItemsFromOtherInventoryTab(Tabs.InventoryTabs[TargetTabIndex].TabSlots[Index].ItemData);
			}
		}
		TabUpdateInfo.ReplicationCounter++;
		TabUpdateInfo.TargetTabIndex = TargetTabIndex;
		if (GetNetMode() == ENetMode::NM_Standalone)
			OnTabChanged.ExecuteIfBound(TabUpdateInfo.TargetTabIndex);
	}
}

void UGISInventoryBaseComponent::InitializeWidgets(APlayerController* PCIn)
{
	ENetRole CurrentRole = GetOwnerRole();
	ENetMode CurrentNetMode = GetNetMode();
	
	if (CurrentRole < ROLE_Authority || CurrentNetMode == ENetMode::NM_Standalone)
	{
		if (InventoryConfiguration.IsValid())
		{
			InventoryContainer = CreateWidget<UGISContainerBaseWidget>(PCIn, InventoryConfiguration.InventoryContainerClass);
			if (InventoryContainer)
			{
				InventoryContainer->InitializeContainer(InventoryConfiguration, this, PCIn);
				InventoryContainer->SetVisibility(InventoryConfiguration.InventoryVisibility);
				//call last
			}
		}

		if (LootConfiguration.IsValid())
		{
			LootWidget = CreateWidget<UGISLootContainerBaseWidget>(PCIn, LootConfiguration.LootWidgetClass);
			if (LootWidget)
			{
				LootWidget->InitializeLootWidget(LootConfiguration, this, PCIn);
				LootWidget->SetVisibility(LootConfiguration.LootWindowVisibility);
			}
		}
	}
}

void ANTPlayerController::Tick(float DeltaSeconds)
{
	Super::Tick(DeltaSeconds);

	AccumulativeDeltaTime += DeltaSeconds;

	// If we're the Client and we haven't updated Ping in a while, try to get a ping update
	const float LocTimeSec = GetWorld()->GetTimeSeconds();
	if (((LocTimeSec - LastPingCalcTime) > 0.5f) && (GetNetMode() == NM_Client))
	{
		LastPingCalcTime = LocTimeSec;
		ServerBouncePing(LocTimeSec);
	}

	if (PlayerState)
	{
		if (Role == ROLE_Authority && !IsLocalController())
		{
			GEngine->AddOnScreenDebugMessage(-1, DeltaSeconds, FColor::Blue, FString::Printf(TEXT("Server Ping %f - TimeStamp %i"), PlayerState->ExactPing, GetLocalTime()));
		}
		else if (Role < ROLE_Authority)
		{
			GEngine->AddOnScreenDebugMessage(-1, DeltaSeconds, FColor::Green, FString::Printf(TEXT("Client Ping %f - TimeStamp %i"), PlayerState->ExactPing, GetNetworkTime()));
		}
	}
}

void AFPSGWeapon::onPickedUp(class AActor* otherActor)
{
	GEngine->AddOnScreenDebugMessage(-1, 6.0f, FColor::Red, "AFPSGWeapon::onPickedUp");

	/*
	* Overlaps on AFPSGWeapon will only be executed on the server since only the server owns the boxCollisionComponent
	*/

	//Just return if we are a client (should not happen, but checks just in case)
	if (Role < ROLE_Authority && GetNetMode() == NM_Client)
	{
		return;
	}
	
	// Get the character that picked up the weapon
	AFPSGCharacter* theCharacter = Cast<AFPSGCharacter>(otherActor);

	if (theCharacter != NULL)
	{
		if (GEngine != NULL)
		{
			//GEngine->AddOnScreenDebugMessage(-1, 6.0f, FColor::Red, TEXT("AFPSGWeapon::onPickedUp"));
		}
		theCharacter->manageWeapon(this);
	}
}

void AGameplayDebuggingReplicator::TickActor(float DeltaTime, enum ELevelTick TickType, FActorTickFunction& ThisTickFunction)
{
	Super::TickActor(DeltaTime, TickType, ThisTickFunction);

#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
	UWorld* World = GetWorld();
	if (!IsGlobalInWorld() || !World || GetNetMode() == ENetMode::NM_Client || !IGameplayDebugger::IsAvailable())
	{
		// global level replicator don't have any local player and it's prepared to work only on servers
		return;
	}

	UGameInstance* GameInstance = World->GetGameInstance();
	if (!GameInstance || !World->IsGameWorld())
	{
		return;
	}

	PlayerControllersUpdateDelay -= DeltaTime;
	if (PlayerControllersUpdateDelay <= 0)
	{
		for (FConstPlayerControllerIterator Iterator = World->GetPlayerControllerIterator(); Iterator; Iterator++)
		{
			APlayerController* PC = *Iterator;
			if (PC)
			{
				IGameplayDebugger& Debugger = IGameplayDebugger::Get();
				Debugger.CreateGameplayDebuggerForPlayerController(PC);
			}
		}
		PlayerControllersUpdateDelay = 5;
	}
#endif
}

void AGWWeaponRanged::EndReload()
{
	if (Role < ROLE_Authority)
	{
		if (!CheckIfCanReload())
			return;
		CalculateReloadAmmo();
		ServerEndReload();
	}
	else
	{
		/*
			Impelemtnsome reload mechanic..
			1. Where is ammo coming from ?
			2. How it is setup ?
			3. Does weapon have it's own magazine max ammo count, or is it stored externally ?
		*/
		if (!CheckIfCanReload())
			return;
		CalculateReloadAmmo();
		ReloadEndCount++;
		if (GetNetMode() == ENetMode::NM_Standalone)
			OnRep_ReloadEnd();
	}
}

void AFPSGPlayerController::onClickEndGame() const
{
	//Make sure it is the server calling the function
	if (Role < ROLE_Authority && GetNetMode() == NM_Client) return;

	//GEngine->AddOnScreenDebugMessage(-1, 40.0f, FColor::Cyan, "AFPSGPlayerController::onClickEndGame");

	IOnlineSubsystem* onlineSubsystem = IOnlineSubsystem::Get();
	IOnlineSessionPtr sessions = onlineSubsystem != NULL ? onlineSubsystem->GetSessionInterface() : NULL;

	if (sessions.IsValid())
	{
		UWorld* world = GetWorld();
		AFPSGGameState* gameState = world != NULL ? world->GetGameState<AFPSGGameState>() : NULL;

		if (gameState != NULL)
		{
			//Retrieve the session state and match state
			EOnlineSessionState::Type sessionState = sessions->GetSessionState(GameSessionName);
			FName matchState = gameState->GetMatchState();

			//Only attempt to end the game if both the session and match are in progress
			if (sessionState == EOnlineSessionState::Type::InProgress && matchState == MatchState::InProgress)
			{
				gameState->onClickEndGame();
			}
		}
	}
}