void UK2Node_EaseFunction::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
/**
At the end of this, the UK2Node_EaseFunction will not be a part of the Blueprint, it merely handles connecting
the other nodes into the Blueprint.
*/
UFunction* Function = UKismetMathLibrary::StaticClass()->FindFunctionByName(*EaseFunctionName);
if (Function == NULL)
{
CompilerContext.MessageLog.Error(*LOCTEXT("InvalidFunctionName", "BaseAsyncTask: Type not supported or not initialized. @@").ToString(), this);
return;
}
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
// The call function does all the real work, each child class implementing easing for a given type provides
// the name of the desired function
UK2Node_CallFunction* CallFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallFunction->SetFromFunction(Function);
CallFunction->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(CallFunction, this);
// Move the ease function and the alpha connections from us to the call function
CompilerContext.MovePinLinksToIntermediate(*FindPin(FEaseFunctionNodeHelper::GetEaseFuncPinName()), *CallFunction->FindPin(TEXT("EasingFunc")));
CompilerContext.MovePinLinksToIntermediate(*FindPin(FEaseFunctionNodeHelper::GetAlphaPinName()), *CallFunction->FindPin(TEXT("Alpha")));
// Move base connections to the call function's connections
CompilerContext.MovePinLinksToIntermediate(*FindPin(FEaseFunctionNodeHelper::GetAPinName()), *CallFunction->FindPin(TEXT("A")));
CompilerContext.MovePinLinksToIntermediate(*FindPin(FEaseFunctionNodeHelper::GetBPinName()), *CallFunction->FindPin(TEXT("B")));
CompilerContext.MovePinLinksToIntermediate(*FindPin(FEaseFunctionNodeHelper::GetResultPinName()), *CallFunction->GetReturnValuePin());
// Now move the custom pins to their new locations
UEdGraphPin* ShortestPathPin = FindPinChecked(FEaseFunctionNodeHelper::GetShortestPathPinName());
if (!ShortestPathPin->bHidden)
{
CompilerContext.MovePinLinksToIntermediate(*ShortestPathPin, *CallFunction->FindPinChecked(TEXT("bShortestPath")));
}
UEdGraphPin* BlendExpPin = FindPinChecked(FEaseFunctionNodeHelper::GetBlendExpPinName());
if (!BlendExpPin->bHidden)
{
CompilerContext.MovePinLinksToIntermediate(*BlendExpPin, *CallFunction->FindPinChecked(FEaseFunctionNodeHelper::GetBlendExpPinName()));
}
UEdGraphPin* StepsPin = FindPinChecked(FEaseFunctionNodeHelper::GetStepsPinName());
if (!StepsPin->bHidden)
{
CompilerContext.MovePinLinksToIntermediate(*StepsPin, *CallFunction->FindPinChecked(FEaseFunctionNodeHelper::GetStepsPinName()));
}
// Cleanup links to ourself and we are done!
BreakAllNodeLinks();
}
void UK2Node_ForEachElementInEnum::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
if (CompilerContext.bIsFullCompile)
{
if (!Enum)
{
ValidateNodeDuringCompilation(CompilerContext.MessageLog);
return;
}
FForExpandNodeHelper ForLoop;
if (!ForLoop.BuildLoop(this, CompilerContext, SourceGraph))
{
CompilerContext.MessageLog.Error(*NSLOCTEXT("K2Node", "ForEachElementInEnum_ForError", "For Expand error in @@").ToString(), this);
}
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
CompilerContext.CheckConnectionResponse(Schema->MovePinLinks(*GetExecPin(), *ForLoop.StartLoopExecInPin), this);
CompilerContext.CheckConnectionResponse(Schema->MovePinLinks(*FindPinChecked(Schema->PN_Then), *ForLoop.LoopCompleteOutExecPin), this);
CompilerContext.CheckConnectionResponse(Schema->MovePinLinks(*FindPinChecked(InsideLoopPinName), *ForLoop.InsideLoopExecOutPin), this);
UK2Node_GetNumEnumEntries* GetNumEnumEntries = CompilerContext.SpawnIntermediateNode<UK2Node_GetNumEnumEntries>(this, SourceGraph);
GetNumEnumEntries->Enum = Enum;
GetNumEnumEntries->AllocateDefaultPins();
bool bResult = Schema->TryCreateConnection(GetNumEnumEntries->FindPinChecked(Schema->PN_ReturnValue), ForLoop.IndexLimitInPin);
UK2Node_CallFunction* Conv_Func = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
FName Conv_Func_Name = GET_FUNCTION_NAME_CHECKED(UKismetMathLibrary, Conv_IntToByte);
Conv_Func->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(Conv_Func_Name));
Conv_Func->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(Conv_Func->FindPinChecked(TEXT("InInt")), ForLoop.IndexOutPin);
UK2Node_CastByteToEnum* CastByteToEnum = CompilerContext.SpawnIntermediateNode<UK2Node_CastByteToEnum>(this, SourceGraph);
CastByteToEnum->Enum = Enum;
CastByteToEnum->bSafe = true;
CastByteToEnum->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(Conv_Func->FindPinChecked(Schema->PN_ReturnValue), CastByteToEnum->FindPinChecked(UK2Node_CastByteToEnum::ByteInputPinName));
CompilerContext.CheckConnectionResponse(Schema->MovePinLinks(*FindPinChecked(EnumOuputPinName), *CastByteToEnum->FindPinChecked(Schema->PN_ReturnValue)), this);
if (!bResult)
{
CompilerContext.MessageLog.Error(*NSLOCTEXT("K2Node", "ForEachElementInEnum_ExpandError", "Expand error in @@").ToString(), this);
}
BreakAllNodeLinks();
}
}
void UK2Node_CastByteToEnum::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
if (bSafe && Enum)
{
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
// FUNCTION NODE
const FName FunctionName = GetFunctionName();
const UFunction* Function = UKismetNodeHelperLibrary::StaticClass()->FindFunctionByName(FunctionName);
check(NULL != Function);
UK2Node_CallFunction* CallValidation = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallValidation->SetFromFunction(Function);
CallValidation->AllocateDefaultPins();
check(CallValidation->IsNodePure());
// FUNCTION ENUM PIN
UEdGraphPin* FunctionEnumPin = CallValidation->FindPinChecked(TEXT("Enum"));
Schema->TrySetDefaultObject(*FunctionEnumPin, Enum);
check(FunctionEnumPin->DefaultObject == Enum);
// FUNCTION INPUT BYTE PIN
UEdGraphPin* OrgInputPin = FindPinChecked(ByteInputPinName);
UEdGraphPin* FunctionIndexPin = CallValidation->FindPinChecked(TEXT("EnumeratorIndex"));
check(EGPD_Input == FunctionIndexPin->Direction && Schema->PC_Byte == FunctionIndexPin->PinType.PinCategory);
CompilerContext.MovePinLinksToIntermediate(*OrgInputPin, *FunctionIndexPin);
// UNSAFE CAST NODE
UK2Node_CastByteToEnum* UsafeCast = CompilerContext.SpawnIntermediateNode<UK2Node_CastByteToEnum>(this, SourceGraph);
UsafeCast->Enum = Enum;
UsafeCast->bSafe = false;
UsafeCast->AllocateDefaultPins();
// UNSAFE CAST INPUT
UEdGraphPin* CastInputPin = UsafeCast->FindPinChecked(ByteInputPinName);
UEdGraphPin* FunctionReturnPin = CallValidation->GetReturnValuePin();
check(NULL != FunctionReturnPin);
Schema->TryCreateConnection(CastInputPin, FunctionReturnPin);
// OPUTPUT PIN
UEdGraphPin* OrgReturnPin = FindPinChecked(Schema->PN_ReturnValue);
UEdGraphPin* NewReturnPin = UsafeCast->FindPinChecked(Schema->PN_ReturnValue);
CompilerContext.MovePinLinksToIntermediate(*OrgReturnPin, *NewReturnPin);
BreakAllNodeLinks();
}
}
void UK2Node_GetInputAxisValue::AllocateDefaultPins()
{
Super::AllocateDefaultPins();
UEdGraphPin* InputAxisNamePin = FindPinChecked(TEXT("InputAxisName"));
InputAxisNamePin->DefaultValue = InputAxisName.ToString();
}
void UK2Node_Event::UpdateDelegatePin()
{
UEdGraphPin* Pin = FindPinChecked(DelegateOutputName);
checkSlow(EGPD_Output == Pin->Direction);
const UObject* OldSignature = Pin->PinType.PinSubCategoryObject.Get();
if(bOverrideFunction)
{
Pin->PinType.PinSubCategoryObject = EventSignatureClass->FindFunctionByName(EventSignatureName);
}
else if(UBlueprint* Blueprint = GetBlueprint())
{
Pin->PinType.PinSubCategoryObject = Blueprint->SkeletonGeneratedClass
? Blueprint->SkeletonGeneratedClass->FindFunctionByName(CustomFunctionName)
: NULL;
}
else
{
Pin->PinType.PinSubCategoryObject = NULL;
}
if(OldSignature != Pin->PinType.PinSubCategoryObject.Get())
{
PinTypeChanged(Pin);
}
}
UEdGraphPin* UK2Node_FormatText::GetFormatPin() const
{
if (!CachedFormatPin)
{
const_cast<UK2Node_FormatText*>(this)->CachedFormatPin = FindPinChecked(FFormatTextNodeHelper::GetFormatPinName());
}
return CachedFormatPin;
}
UEdGraphPin* UK2Node_SpawnActor::GetThenPin()const
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UEdGraphPin* Pin = FindPinChecked(K2Schema->PN_Then);
check(Pin->Direction == EGPD_Output);
return Pin;
}
UEdGraphPin* UK2Node_LatentAbilityCall::GetResultPin() const
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UEdGraphPin* Pin = FindPinChecked(K2Schema->PN_ReturnValue);
check(Pin->Direction == EGPD_Output);
return Pin;
}
UEdGraphPin* UK2Node_EaseFunction::GetEaseFuncPin() const
{
if (!CachedEaseFuncPin)
{
const_cast<UK2Node_EaseFunction*>(this)->CachedEaseFuncPin = FindPinChecked(FEaseFunctionNodeHelper::GetEaseFuncPinName());
}
return CachedEaseFuncPin;
}
UEdGraphPin* UK2Node_SpawnActorFromClass::GetResultPin() const
{
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
UEdGraphPin* Pin = FindPinChecked(K2Schema->PN_ReturnValue);
check(Pin->Direction == EGPD_Output);
return Pin;
}
void UK2Node_GetEnumeratorName::NotifyPinConnectionListChanged(UEdGraphPin* Pin)
{
Super::NotifyPinConnectionListChanged(Pin);
if (Pin == FindPinChecked(EnumeratorPinName))
{
UpdatePinType();
}
}
void UK2Node_EaseFunction::GenerateExtraPins()
{
const UEdGraphSchema_K2* K2Schema = Cast<const UEdGraphSchema_K2>(GetSchema());
// Add pins based on the pin type
const UEdGraphPin* APin = FindPinChecked(FEaseFunctionNodeHelper::GetAPinName());
const bool bIsRotator = APin->PinType.PinCategory == K2Schema->PC_Struct && APin->PinType.PinSubCategoryObject.Get()->GetName() == TEXT("Rotator");
UEdGraphPin* ShortestPathPin = FindPinChecked(FEaseFunctionNodeHelper::GetShortestPathPinName());
if (bIsRotator)
{
ShortestPathPin->bHidden = false;
}
else
{
ShortestPathPin->BreakAllPinLinks();
ShortestPathPin->bHidden = true;
}
}
void UK2Node_GetEnumeratorName::UpdatePinType()
{
UEdGraphPin* EnumPin = FindPinChecked(EnumeratorPinName);
UEnum* Enum = GetEnum();
if (EnumPin->PinType.PinSubCategoryObject != Enum)
{
EnumPin->PinType.PinSubCategoryObject = Enum;
PinTypeChanged(EnumPin);
}
}
void UK2Node_GetEnumeratorName::ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const
{
const UEdGraphSchema_K2* Schema = GetDefault<UEdGraphSchema_K2>();
const UEdGraphPin* OutputPin = FindPinChecked(Schema->PN_ReturnValue);
/*Don't validate isolated nodes */
if (0 != OutputPin->LinkedTo.Num())
{
EarlyValidation(MessageLog);
}
}
void UK2Node_EaseFunction::RefreshPinVisibility()
{
const auto EaseFuncPin = GetEaseFuncPin();
UEnum * Enum = FindObject<UEnum>(ANY_PACKAGE, TEXT("EEasingFunc"), true);
check(Enum != NULL);
const int32 NewEasingFunc = CanCustomizeCurve() ? Enum->GetValueByName(*EaseFuncPin->DefaultValue) : -1;
// Early exit in case no changes are required
const UEdGraphSchema_K2* K2Schema = Cast<const UEdGraphSchema_K2>(GetSchema());
UEdGraphPin* BlendExpPin = FindPinChecked(FEaseFunctionNodeHelper::GetBlendExpPinName());
if (NewEasingFunc == -1 ||
NewEasingFunc == EEasingFunc::EaseIn ||
NewEasingFunc == EEasingFunc::EaseOut ||
NewEasingFunc == EEasingFunc::EaseInOut)
{
// Show the BlendExpPin
BlendExpPin->bHidden = false;
}
else
{
// Hide the BlendExpPin:
BlendExpPin->BreakAllPinLinks();
BlendExpPin->bHidden = true;
}
UEdGraphPin* StepsPin = FindPinChecked(FEaseFunctionNodeHelper::GetStepsPinName());
if (NewEasingFunc == -1 ||
NewEasingFunc == EEasingFunc::Step)
{
// Show the Steps pin:
StepsPin->bHidden = false;
}
else
{
// Hide the Steps pin:
StepsPin->BreakAllPinLinks();
StepsPin->bHidden = true;
}
}
void UK2Node_SetFieldsInStruct::ValidateNodeDuringCompilation(FCompilerResultsLog& MessageLog) const
{
Super::ValidateNodeDuringCompilation(MessageLog);
if (UEdGraphPin* FoundPin = FindPinChecked(SetFieldsInStructHelper::StructRefPinName()))
{
if (FoundPin->LinkedTo.Num() <= 0)
{
FText ErrorMessage = LOCTEXT("SetStructFields_NoStructRefError", "The @@ pin must be connected to the struct that you wish to set.");
MessageLog.Error(*ErrorMessage.ToString(), FoundPin);
}
}
}
bool UK2Node_GetEnumeratorName::IsConnectionDisallowed(const UEdGraphPin* MyPin, const UEdGraphPin* OtherPin, FString& OutReason) const
{
const UEdGraphSchema_K2* Schema = GetDefault<UEdGraphSchema_K2>();
const UEdGraphPin* InputPin = FindPinChecked(EnumeratorPinName);
if((InputPin == MyPin) && OtherPin && (OtherPin->PinType.PinCategory == Schema->PC_Byte))
{
if(NULL == Cast<UEnum>(OtherPin->PinType.PinSubCategoryObject.Get()))
{
OutReason = NSLOCTEXT("K2Node", "GetNumEnumEntries_NotEnum_Msg", "Input is not an Enum.").ToString();
return true;
}
}
return false;
}
void UK2Node_GetNumEnumEntries::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
if(NULL == Enum)
{
CompilerContext.MessageLog.Error(*FString::Printf(*NSLOCTEXT("K2Node", "GetNumEnumEntries_Error", "@@ must have a valid enum defined").ToString()), this);
return;
}
// Force the enum to load its values if it hasn't already
if (Enum->HasAnyFlags(RF_NeedLoad))
{
Enum->GetLinker()->Preload(Enum);
}
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
check(NULL != Schema);
//MAKE LITERAL
const FName FunctionName = GET_FUNCTION_NAME_CHECKED(UKismetSystemLibrary, MakeLiteralInt);
UK2Node_CallFunction* MakeLiteralInt = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
MakeLiteralInt->SetFromFunction(UKismetSystemLibrary::StaticClass()->FindFunctionByName(FunctionName));
MakeLiteralInt->AllocateDefaultPins();
//OPUTPUT PIN
UEdGraphPin* OrgReturnPin = FindPinChecked(Schema->PN_ReturnValue);
UEdGraphPin* NewReturnPin = MakeLiteralInt->GetReturnValuePin();
check(NULL != NewReturnPin);
CompilerContext.MovePinLinksToIntermediate(*OrgReturnPin, *NewReturnPin);
//INPUT PIN
UEdGraphPin* InputPin = MakeLiteralInt->FindPinChecked(TEXT("Value"));
check(EGPD_Input == InputPin->Direction);
const FString DefaultValue = FString::FromInt(Enum->NumEnums() - 1);
InputPin->DefaultValue = DefaultValue;
BreakAllNodeLinks();
}
/**
* This is essentially a mix of K2Node_BaseAsyncTask::ExpandNode and K2Node_SpawnActorFromClass::ExpandNode.
* Several things are going on here:
* -Factory call to create proxy object (K2Node_BaseAsyncTask)
* -Task return delegates are created and hooked up (K2Node_BaseAsyncTask)
* -A BeginSpawn function is called on proxyu object (similiar to K2Node_SpawnActorFromClass)
* -BeginSpawn can choose to spawn or not spawn an actor (and return it)
* -If spawned:
* -SetVars are run on the newly spawned object (set expose on spawn variables - K2Node_SpawnActorFromClass)
* -FinishSpawn is called on the proxy object
*
*
* Also, a K2Node_SpawnActorFromClass could not be used directly here, since we want the proxy object to implement its own
* BeginSpawn/FinishSpawn function (custom game logic will often be performed in the native implementation). K2Node_SpawnActorFromClass also
* requires a SpawnTransform be wired into it, and in most ability task cases, the spawn transform is implied or not necessary.
*
*
*/
void UK2Node_LatentAbilityCall::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
bool validatedActorSpawn = ValidateActorSpawning(CompilerContext, false);
bool validatedActorArraySpawn = ValidateActorArraySpawning(CompilerContext, false);
UEdGraphPin* ClassPin = GetClassPin();
if (ClassPin == nullptr)
{
// Nothing special about this task, just call super
Super::ExpandNode(CompilerContext, SourceGraph);
return;
}
UK2Node::ExpandNode(CompilerContext, SourceGraph);
if (!validatedActorSpawn && !validatedActorArraySpawn)
{
ValidateActorSpawning(CompilerContext, true);
ValidateActorArraySpawning(CompilerContext, true);
}
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
check(SourceGraph && Schema);
bool bIsErrorFree = true;
// ------------------------------------------------------------------------------------------
// CREATE A CALL TO FACTORY THE PROXY OBJECT
// ------------------------------------------------------------------------------------------
UK2Node_CallFunction* const CallCreateProxyObjectNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallCreateProxyObjectNode->FunctionReference.SetExternalMember(ProxyFactoryFunctionName, ProxyFactoryClass);
CallCreateProxyObjectNode->AllocateDefaultPins();
bIsErrorFree &= CompilerContext.MovePinLinksToIntermediate(*FindPinChecked(Schema->PN_Execute), *CallCreateProxyObjectNode->FindPinChecked(Schema->PN_Execute)).CanSafeConnect();
for (auto CurrentPin : Pins)
{
if (FBaseAsyncTaskHelper::ValidDataPin(CurrentPin, EGPD_Input, Schema))
{
UEdGraphPin* DestPin = CallCreateProxyObjectNode->FindPin(CurrentPin->PinName); // match function inputs, to pass data to function from CallFunction node
// NEW: if no DestPin, assume it is a Class Spawn PRoperty - not an error
if (DestPin)
{
bIsErrorFree &= CompilerContext.CopyPinLinksToIntermediate(*CurrentPin, *DestPin).CanSafeConnect();
}
}
}
// ------------------------------------------------------------------------------------------
// GATHER OUTPUT PARAMETERS AND PAIR THEM WITH LOCAL VARIABLES
// ------------------------------------------------------------------------------------------
TArray<FBaseAsyncTaskHelper::FOutputPinAndLocalVariable> VariableOutputs;
for (auto CurrentPin : Pins)
{
if (FBaseAsyncTaskHelper::ValidDataPin(CurrentPin, EGPD_Output, Schema))
{
const FEdGraphPinType& PinType = CurrentPin->PinType;
UK2Node_TemporaryVariable* TempVarOutput = CompilerContext.SpawnInternalVariable(
this, PinType.PinCategory, PinType.PinSubCategory, PinType.PinSubCategoryObject.Get(), PinType.bIsArray);
bIsErrorFree &= TempVarOutput->GetVariablePin() && CompilerContext.MovePinLinksToIntermediate(*CurrentPin, *TempVarOutput->GetVariablePin()).CanSafeConnect();
VariableOutputs.Add(FBaseAsyncTaskHelper::FOutputPinAndLocalVariable(CurrentPin, TempVarOutput));
}
}
// ------------------------------------------------------------------------------------------
// FOR EACH DELEGATE DEFINE EVENT, CONNECT IT TO DELEGATE AND IMPLEMENT A CHAIN OF ASSIGMENTS
// ------------------------------------------------------------------------------------------
UEdGraphPin* LastThenPin = CallCreateProxyObjectNode->FindPinChecked(Schema->PN_Then);
UEdGraphPin* const ProxyObjectPin = CallCreateProxyObjectNode->GetReturnValuePin();
for (TFieldIterator<UMulticastDelegateProperty> PropertyIt(ProxyClass, EFieldIteratorFlags::ExcludeSuper); PropertyIt && bIsErrorFree; ++PropertyIt)
{
bIsErrorFree &= FBaseAsyncTaskHelper::HandleDelegateImplementation(*PropertyIt, VariableOutputs, ProxyObjectPin, LastThenPin, this, SourceGraph, CompilerContext);
}
if (CallCreateProxyObjectNode->FindPinChecked(Schema->PN_Then) == LastThenPin)
{
CompilerContext.MessageLog.Error(*LOCTEXT("MissingDelegateProperties", "BaseAsyncTask: Proxy has no delegates defined. @@").ToString(), this);
return;
}
// ------------------------------------------------------------------------------------------
// NEW: CREATE A CALL TO THE PRESPAWN FUNCTION, IF IT RETURNS TRUE, THEN WE WILL SPAWN THE NEW ACTOR
// ------------------------------------------------------------------------------------------
FName ProxyPrespawnFunctionName = validatedActorArraySpawn ? *FK2Node_LatentAbilityCallHelper::BeginSpawnArrayFuncName : *FK2Node_LatentAbilityCallHelper::BeginSpawnFuncName;
UFunction* PreSpawnFunction = ProxyFactoryClass->FindFunctionByName(ProxyPrespawnFunctionName);
FName ProxyPostpawnFunctionName = validatedActorArraySpawn ? *FK2Node_LatentAbilityCallHelper::FinishSpawnArrayFuncName : *FK2Node_LatentAbilityCallHelper::FinishSpawnFuncName;
UFunction* PostSpawnFunction = ProxyFactoryClass->FindFunctionByName(ProxyPostpawnFunctionName);
if (PreSpawnFunction == nullptr)
{
if (validatedActorArraySpawn)
{
CompilerContext.MessageLog.Error(*LOCTEXT("MissingBeginSpawningActorArrayFunction", "AbilityTask: Proxy is missing BeginSpawningActorArray native function. @@").ToString(), this);
}
else
{
CompilerContext.MessageLog.Error(*LOCTEXT("MissingBeginSpawningActorFunction", "AbilityTask: Proxy is missing BeginSpawningActor native function. @@").ToString(), this);
}
return;
}
if (PostSpawnFunction == nullptr)
{
if (validatedActorArraySpawn)
{
CompilerContext.MessageLog.Error(*LOCTEXT("MissingFinishSpawningActorArrayFunction", "AbilityTask: Proxy is missing FinishSpawningActorArray native function. @@").ToString(), this);
}
else
{
CompilerContext.MessageLog.Error(*LOCTEXT("MissingFinishSpawningActorFunction", "AbilityTask: Proxy is missing FinishSpawningActor native function. @@").ToString(), this);
}
return;
}
UK2Node_CallFunction* const CallPrespawnProxyObjectNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallPrespawnProxyObjectNode->FunctionReference.SetExternalMember(ProxyPrespawnFunctionName, ProxyClass);
CallPrespawnProxyObjectNode->AllocateDefaultPins();
// Hook up the self connection
UEdGraphPin* PrespawnCallSelfPin = Schema->FindSelfPin(*CallPrespawnProxyObjectNode, EGPD_Input);
check(PrespawnCallSelfPin);
bIsErrorFree &= Schema->TryCreateConnection(ProxyObjectPin, PrespawnCallSelfPin);
// Hook up input parameters to PreSpawn
for (auto CurrentPin : Pins)
{
if (FBaseAsyncTaskHelper::ValidDataPin(CurrentPin, EGPD_Input, Schema))
{
UEdGraphPin* DestPin = CallPrespawnProxyObjectNode->FindPin(CurrentPin->PinName);
if (DestPin)
{
bIsErrorFree &= CompilerContext.CopyPinLinksToIntermediate(*CurrentPin, *DestPin).CanSafeConnect();
}
}
}
// Hook the activate node up in the exec chain
UEdGraphPin* PrespawnExecPin = CallPrespawnProxyObjectNode->FindPinChecked(Schema->PN_Execute);
UEdGraphPin* PrespawnThenPin = CallPrespawnProxyObjectNode->FindPinChecked(Schema->PN_Then);
UEdGraphPin* PrespawnReturnPin = CallPrespawnProxyObjectNode->FindPinChecked(Schema->PN_ReturnValue);
UEdGraphPin* SpawnedActorReturnPin = CallPrespawnProxyObjectNode->FindPinChecked(FK2Node_LatentAbilityCallHelper::SpawnedActorPinName);
bIsErrorFree &= Schema->TryCreateConnection(LastThenPin, PrespawnExecPin);
LastThenPin = PrespawnThenPin;
// -------------------------------------------
// Branch based on return value of Prespawn
// -------------------------------------------
UK2Node_IfThenElse* BranchNode = SourceGraph->CreateBlankNode<UK2Node_IfThenElse>();
BranchNode->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(BranchNode, this);
// Link return value of prespawn with the branch condtional
bIsErrorFree &= Schema->TryCreateConnection(PrespawnReturnPin, BranchNode->GetConditionPin());
// Link our Prespawn call to the branch node
bIsErrorFree &= Schema->TryCreateConnection(LastThenPin, BranchNode->GetExecPin());
UEdGraphPin* BranchElsePin = BranchNode->GetElsePin();
LastThenPin = BranchNode->GetThenPin();
UClass* ClassToSpawn = GetClassToSpawn();
if (validatedActorArraySpawn && ClassToSpawn)
{
//Branch for main loop control
UK2Node_IfThenElse* Branch = CompilerContext.SpawnIntermediateNode<UK2Node_IfThenElse>(this, SourceGraph);
Branch->AllocateDefaultPins();
//Create int Iterator
UK2Node_TemporaryVariable* IteratorVar = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(this, SourceGraph);
IteratorVar->VariableType.PinCategory = Schema->PC_Int;
IteratorVar->AllocateDefaultPins();
//Iterator assignment (initialization to zero)
UK2Node_AssignmentStatement* IteratorInitialize = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(this, SourceGraph);
IteratorInitialize->AllocateDefaultPins();
IteratorInitialize->GetValuePin()->DefaultValue = TEXT("0");
//Iterator assignment (incrementing)
UK2Node_AssignmentStatement* IteratorAssign = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(this, SourceGraph);
IteratorAssign->AllocateDefaultPins();
//Increment iterator command
UK2Node_CallFunction* Increment = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
Increment->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(TEXT("Add_IntInt")));
Increment->AllocateDefaultPins();
Increment->FindPinChecked(TEXT("B"))->DefaultValue = TEXT("1");
//Array length
UK2Node_CallArrayFunction* ArrayLength = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(this, SourceGraph);
ArrayLength->SetFromFunction(UKismetArrayLibrary::StaticClass()->FindFunctionByName(TEXT("Array_Length")));
ArrayLength->AllocateDefaultPins();
//Array element retrieval
UK2Node_CallArrayFunction* GetElement = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(this, SourceGraph);
GetElement->SetFromFunction(UKismetArrayLibrary::StaticClass()->FindFunctionByName(TEXT("Array_Get")));
GetElement->AllocateDefaultPins();
//Check node for iterator versus array length
UK2Node_CallFunction* Condition = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
Condition->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(TEXT("Less_IntInt")));
Condition->AllocateDefaultPins();
//Connections to set up the loop
UEdGraphSchema_K2 const* const K2Schema = Cast<const UEdGraphSchema_K2>(Schema);
bIsErrorFree &= Schema->TryCreateConnection(LastThenPin, IteratorInitialize->GetExecPin());
bIsErrorFree &= Schema->TryCreateConnection(IteratorVar->GetVariablePin(), IteratorInitialize->GetVariablePin());
bIsErrorFree &= Schema->TryCreateConnection(IteratorInitialize->GetThenPin(), Branch->GetExecPin());
bIsErrorFree &= Schema->TryCreateConnection(SpawnedActorReturnPin, ArrayLength->GetTargetArrayPin());
bIsErrorFree &= Schema->TryCreateConnection(Condition->GetReturnValuePin(), Branch->GetConditionPin());
bIsErrorFree &= Schema->TryCreateConnection(IteratorVar->GetVariablePin(), Condition->FindPinChecked(TEXT("A")));
bIsErrorFree &= Schema->TryCreateConnection(ArrayLength->FindPin(K2Schema->PN_ReturnValue), Condition->FindPinChecked(TEXT("B")));
//Connections to establish loop iteration
bIsErrorFree &= Schema->TryCreateConnection(IteratorVar->GetVariablePin(), Increment->FindPinChecked(TEXT("A")));
bIsErrorFree &= Schema->TryCreateConnection(IteratorVar->GetVariablePin(), IteratorAssign->GetVariablePin());
bIsErrorFree &= Schema->TryCreateConnection(Increment->GetReturnValuePin(), IteratorAssign->GetValuePin());
bIsErrorFree &= Schema->TryCreateConnection(IteratorAssign->GetThenPin(), Branch->GetExecPin());
//This is the inner loop
LastThenPin = Branch->GetThenPin(); //Connect the loop branch to the spawn-assignment code block
bIsErrorFree &= Schema->TryCreateConnection(SpawnedActorReturnPin, GetElement->GetTargetArrayPin());
bIsErrorFree &= Schema->TryCreateConnection(IteratorVar->GetVariablePin(), GetElement->FindPinChecked(K2Schema->PN_Index));
bIsErrorFree &= ConnectSpawnProperties(ClassToSpawn, Schema, CompilerContext, SourceGraph, LastThenPin, GetElement->FindPinChecked(K2Schema->PN_Item)); //Last argument is the array element
bIsErrorFree &= Schema->TryCreateConnection(LastThenPin, IteratorAssign->GetExecPin()); //Connect the spawn-assignment code block to the iterator increment
//Finish by providing the proper path out
LastThenPin = Branch->GetElsePin();
}
// -------------------------------------------
// Set spawn variables
// Borrowed heavily from FKismetCompilerUtilities::GenerateAssignmentNodes
// -------------------------------------------
if (validatedActorSpawn && ClassToSpawn)
{
bIsErrorFree &= ConnectSpawnProperties(ClassToSpawn, Schema, CompilerContext, SourceGraph, LastThenPin, SpawnedActorReturnPin);
}
// -------------------------------------------
// Call FinishSpawning
// -------------------------------------------
UK2Node_CallFunction* const CallPostSpawnnProxyObjectNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallPostSpawnnProxyObjectNode->FunctionReference.SetExternalMember(ProxyPostpawnFunctionName, ProxyClass);
CallPostSpawnnProxyObjectNode->AllocateDefaultPins();
// Hook up the self connection
UEdGraphPin* PostspawnCallSelfPin = Schema->FindSelfPin(*CallPostSpawnnProxyObjectNode, EGPD_Input);
check(PostspawnCallSelfPin);
bIsErrorFree &= Schema->TryCreateConnection(ProxyObjectPin, PostspawnCallSelfPin);
// Link our Postspawn call in
bIsErrorFree &= Schema->TryCreateConnection(LastThenPin, CallPostSpawnnProxyObjectNode->FindPinChecked(Schema->PN_Execute));
// Hook up any other input parameters to PostSpawn
for (auto CurrentPin : Pins)
{
if (FBaseAsyncTaskHelper::ValidDataPin(CurrentPin, EGPD_Input, Schema))
{
UEdGraphPin* DestPin = CallPostSpawnnProxyObjectNode->FindPin(CurrentPin->PinName);
if (DestPin)
{
bIsErrorFree &= CompilerContext.CopyPinLinksToIntermediate(*CurrentPin, *DestPin).CanSafeConnect();
}
}
}
UEdGraphPin* InSpawnedActorPin = CallPostSpawnnProxyObjectNode->FindPin(TEXT("SpawnedActor"));
if (InSpawnedActorPin == nullptr)
{
CompilerContext.MessageLog.Error(*LOCTEXT("MissingSpawnedActorInputPin", "AbilityTask: Proxy is missing SpawnedActor input pin in FinishSpawningActor. @@").ToString(), this);
return;
}
bIsErrorFree &= Schema->TryCreateConnection(SpawnedActorReturnPin, InSpawnedActorPin);
LastThenPin = CallPostSpawnnProxyObjectNode->FindPinChecked(Schema->PN_Then);
// Move the connections from the original node then pin to the last internal then pin
bIsErrorFree &= CompilerContext.MovePinLinksToIntermediate(*FindPinChecked(Schema->PN_Then), *LastThenPin).CanSafeConnect();
bIsErrorFree &= CompilerContext.CopyPinLinksToIntermediate(*LastThenPin, *BranchElsePin).CanSafeConnect();
if (!bIsErrorFree)
{
CompilerContext.MessageLog.Error(*LOCTEXT("InternalConnectionError", "BaseAsyncTask: Internal connection error. @@").ToString(), this);
}
// Make sure we caught everything
BreakAllNodeLinks();
}
void UGameplayTagsK2Node_LiteralGameplayTag::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
// Get The input and output pins to our node
UEdGraphPin* TagInPin = FindPin(TEXT("TagIn"));
UEdGraphPin* TagOutPin = FindPinChecked(Schema->PN_ReturnValue);
// Create a Make Struct
UK2Node_MakeStruct* MakeStructNode = SourceGraph->CreateBlankNode<UK2Node_MakeStruct>();
MakeStructNode->StructType = FGameplayTagContainer::StaticStruct();
MakeStructNode->AllocateDefaultPins();
// Create a Make Array
UK2Node_MakeArray* MakeArrayNode = SourceGraph->CreateBlankNode<UK2Node_MakeArray>();
MakeArrayNode->AllocateDefaultPins();
// Connect the output of our MakeArray to the Input of our MakeStruct so it sets the Array Type
UEdGraphPin* InPin = MakeStructNode->FindPin( TEXT("GameplayTags") );
if( InPin )
{
InPin->MakeLinkTo( MakeArrayNode->GetOutputPin() );
}
// Add the FName Values to the MakeArray input pins
UEdGraphPin* ArrayInputPin = NULL;
FString TagString = TagInPin->GetDefaultAsString();
if( TagString.StartsWith( TEXT("(") ) && TagString.EndsWith( TEXT(")") ) )
{
TagString = TagString.LeftChop(1);
TagString = TagString.RightChop(1);
TagString.Split("=", NULL, &TagString);
TagString = TagString.LeftChop(1);
TagString = TagString.RightChop(1);
FString ReadTag;
FString Remainder;
int32 MakeIndex = 0;
while( TagString.Split( TEXT(","), &ReadTag, &Remainder ) )
{
TagString = Remainder;
ArrayInputPin = MakeArrayNode->FindPin( FString::Printf( TEXT("[%d]"), MakeIndex ) );
ArrayInputPin->PinType.PinCategory = TEXT("struct");
ArrayInputPin->PinType.PinSubCategoryObject = FGameplayTag::StaticStruct();
ArrayInputPin->DefaultValue = ReadTag;
MakeIndex++;
MakeArrayNode->AddInputPin();
}
if( Remainder.IsEmpty() )
{
Remainder = TagString;
}
if( !Remainder.IsEmpty() )
{
ArrayInputPin = MakeArrayNode->FindPin( FString::Printf( TEXT("[%d]"), MakeIndex ) );
ArrayInputPin->PinType.PinCategory = TEXT("struct");
ArrayInputPin->PinType.PinSubCategoryObject = FGameplayTag::StaticStruct();
ArrayInputPin->DefaultValue = Remainder;
MakeArrayNode->PostReconstructNode();
}
else
{
MakeArrayNode->RemoveInputPin(MakeArrayNode->FindPin(TEXT("[0]")));
MakeArrayNode->PostReconstructNode();
}
}
else
{
MakeArrayNode->RemoveInputPin(MakeArrayNode->FindPin(TEXT("[0]")));
MakeArrayNode->PostReconstructNode();
}
// Move the Output of the MakeArray to the Output of our node
UEdGraphPin* OutPin = MakeStructNode->FindPin( MakeStructNode->StructType->GetName() );
if( OutPin && TagOutPin )
{
OutPin->PinType = TagOutPin->PinType; // Copy type so it uses the right actor subclass
CompilerContext.MovePinLinksToIntermediate(*TagOutPin, *OutPin);
}
// Break any links to the expanded node
BreakAllNodeLinks();
}
UEdGraphPin* UK2Node_SpawnActor::GetNoCollisionFailPin()const
{
UEdGraphPin* Pin = FindPinChecked(NoCollisionFailPinName);
check(Pin->Direction == EGPD_Input);
return Pin;
}
UEdGraphPin* UK2Node_SpawnActor::GetSpawnTransformPin()const
{
UEdGraphPin* Pin = FindPinChecked(SpawnTransformPinName);
check(Pin->Direction == EGPD_Input);
return Pin;
}
UEdGraphPin* UK2Node_ClassDynamicCast::GetCastSourcePin() const
{
UEdGraphPin* Pin = FindPinChecked(FClassDynamicCastHelper::GetClassToCastName());
check(Pin->Direction == EGPD_Input);
return Pin;
}
UEdGraphPin* UK2Node_PureAssignmentStatement::GetValuePin() const
{
return FindPinChecked(ValuePinName);
}
UEdGraphPin *UK2Node_LiveEditObject::GetClampMaxPin() const
{
UEdGraphPin *Pin = FindPinChecked( UK2Node_LiveEditObjectStatics::ClampMaxPinName );
check(Pin->Direction == EGPD_Input);
return Pin;
}
UEdGraphPin *UK2Node_LiveEditObject::GetOnMidiInputPin() const
{
UEdGraphPin *Pin = FindPinChecked( UK2Node_LiveEditObjectStatics::EventPinName );
check(Pin->Direction == EGPD_Output);
return Pin;
}
UEdGraphPin *UK2Node_LiveEditObject::GetPermittedBindingsPin() const
{
UEdGraphPin *Pin = FindPinChecked( UK2Node_LiveEditObjectStatics::PermittedBindingsPinName );
check(Pin->Direction == EGPD_Input);
return Pin;
}
UEdGraphPin* UK2Node_TransitionRuleGetter::GetOutputPin() const
{
return FindPinChecked(TEXT("Output"));
}
void UK2Node_PlayMovieScene::PinConnectionListChanged( UEdGraphPin* InPin )
{
// Call parent implementation
Super::PostReconstructNode();
// @todo sequencer: What about the "default" value for the pin? Right now we don't do anything with that. Might feel buggy.
// --> Actually, we can't use that yet because Actor references won't be fixed up for PIE except for literals
CreateBindingsIfNeeded();
// Update the MovieScene bindings for any changes that were made to the node
// @todo sequencer: Only a single incoming Pin is changing, but we're refreshing all pin states here. Could be simplified
bool bAnyBindingsChanged = false;
{
auto& BoundObjects = MovieSceneBindings->GetBoundObjects();
for( auto BoundObjectIter( BoundObjects.CreateIterator() ); BoundObjectIter; ++BoundObjectIter )
{
auto& BoundObject = *BoundObjectIter;
TArray< UObject* > OtherObjects;
// Find the pin that goes with this object
auto* Pin = FindPinChecked( BoundObject.GetPossessableGuid().ToString( EGuidFormats::DigitsWithHyphens ) );
// Is the pin even linked to anything?
if( Pin->LinkedTo.Num() > 0 )
{
// @todo sequencer major: Add support for multiple connections to a single input pin to be treated as an "unordered array"
for( auto OtherPinIter( Pin->LinkedTo.CreateIterator() ); OtherPinIter; ++OtherPinIter )
{
auto* OtherPin = *OtherPinIter;
if( OtherPin != NULL )
{
// Look for an object bound to a literal. We can use these for scrub preview in the editor!
UK2Node_Literal* OtherLiteralPin = Cast< UK2Node_Literal >( OtherPin->GetOwningNode() );
if( OtherLiteralPin != NULL )
{
// @todo sequencer: Because we only recognize object literals, any dynamically bound actor won't be scrubable
// in the editor. Maybe we should support a "preview actor" that can be hooked up just for scrubbing and puppeting?
// ==> Maybe use the pin's default value as the preview actor, even when overridden with a dynamically spawned actor?
UObject* OtherObject = OtherLiteralPin->GetObjectRef();
if ( OtherObject != NULL )
{
OtherObjects.Add( OtherObject );
}
}
}
}
}
// Update our bindings to match the state of the node
if( BoundObject.GetObjects() != OtherObjects ) // @todo sequencer: Kind of weird to compare entire array (order change shouldn't cause us to invalidate). Change to a set compare?
{
// @todo sequencer: No type checking is happening here. Should we? (interactive during pin drag?)
Modify();
BoundObject.SetObjects( OtherObjects );
bAnyBindingsChanged = true;
}
}
}
if( bAnyBindingsChanged )
{
OnBindingsChangedEvent.Broadcast();
}
}
UEdGraphPin* UK2Node_PlayMovieScene::GetPlayPin() const
{
UEdGraphPin* Pin = FindPinChecked( PlayMovieScenePinNames::Play );
check( Pin->Direction == EGPD_Input );
return Pin;
}
