void FPersonaModule::OnNewBlueprintCreated(UBlueprint* InBlueprint)
{
if (ensure(InBlueprint->UbergraphPages.Num() > 0))
{
UEdGraph* EventGraph = InBlueprint->UbergraphPages[0];
int32 SafeXPosition = 0;
int32 SafeYPosition = 0;
if (EventGraph->Nodes.Num() != 0)
{
SafeXPosition = EventGraph->Nodes[0]->NodePosX;
SafeYPosition = EventGraph->Nodes[EventGraph->Nodes.Num() - 1]->NodePosY + EventGraph->Nodes[EventGraph->Nodes.Num() - 1]->NodeHeight + 100;
}
// add try get owner node
UK2Node_CallFunction* GetOwnerNode = NewObject<UK2Node_CallFunction>(EventGraph);
UFunction* MakeNodeFunction = UAnimInstance::StaticClass()->FindFunctionByName(GET_FUNCTION_NAME_CHECKED(UAnimInstance, TryGetPawnOwner));
GetOwnerNode->CreateNewGuid();
GetOwnerNode->PostPlacedNewNode();
GetOwnerNode->SetFromFunction(MakeNodeFunction);
GetOwnerNode->SetFlags(RF_Transactional);
GetOwnerNode->AllocateDefaultPins();
GetOwnerNode->NodePosX = SafeXPosition;
GetOwnerNode->NodePosY = SafeYPosition;
UEdGraphSchema_K2::SetNodeMetaData(GetOwnerNode, FNodeMetadata::DefaultGraphNode);
GetOwnerNode->bIsNodeEnabled = false;
EventGraph->AddNode(GetOwnerNode);
}
}
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 UGameplayTagsK2Node_MultiCompareGameplayTagContainerSingleTags::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
// Get The input and output pins to our node
UEdGraphPin* InPinSwitch = FindPin(TEXT("Gameplay Tag Container"));
UEdGraphPin* InPinContainerMatchType = FindPin(TEXT("Tag Container Match Type"));
UEdGraphPin* InPinTagsMatchType = FindPin(TEXT("Tags Match Type"));
// For Each Pin Compare against the Tag container
for (int32 Index = 0; Index < NumberOfPins; ++Index)
{
FString InPinName = TEXT("TagCase_") + FString::FormatAsNumber(Index);
FString OutPinName = TEXT("Case_") + FString::FormatAsNumber(Index) + TEXT(" True");
UEdGraphPin* InPinCase = FindPin(InPinName);
UEdGraphPin* OutPinCase = FindPin(OutPinName);
// Create call function node for the Compare function HasAllMatchingGameplayTags
UK2Node_CallFunction* PinCallFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
const UFunction* Function = UBlueprintGameplayTagLibrary::StaticClass()->FindFunctionByName(GET_FUNCTION_NAME_CHECKED(UBlueprintGameplayTagLibrary, DoesContainerHaveTag));
PinCallFunction->SetFromFunction(Function);
PinCallFunction->AllocateDefaultPins();
UEdGraphPin *TagContainerPin = PinCallFunction->FindPinChecked(FString(TEXT("TagContainer")));
CompilerContext.CopyPinLinksToIntermediate(*InPinSwitch, *TagContainerPin);
UEdGraphPin *TagPin = PinCallFunction->FindPinChecked(FString(TEXT("Tag")));
CompilerContext.MovePinLinksToIntermediate(*InPinCase, *TagPin);
UEdGraphPin *ContainerTagsMatchTypePin = PinCallFunction->FindPinChecked(FString(TEXT("ContainerTagsMatchType")));
CompilerContext.CopyPinLinksToIntermediate(*InPinContainerMatchType, *ContainerTagsMatchTypePin);
UEdGraphPin *TagMatchTypePin = PinCallFunction->FindPinChecked(FString(TEXT("TagMatchType")));
CompilerContext.CopyPinLinksToIntermediate(*InPinTagsMatchType, *TagMatchTypePin);
UEdGraphPin *OutPin = PinCallFunction->FindPinChecked(K2Schema->PN_ReturnValue);
if (OutPinCase && OutPin)
{
OutPin->PinType = OutPinCase->PinType; // Copy type so it uses the right actor subclass
CompilerContext.MovePinLinksToIntermediate(*OutPinCase, *OutPin);
}
}
// Break any links to the expanded node
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_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();
}
bool UK2Node_LatentAbilityCall::ConnectSpawnProperties(UClass* ClassToSpawn, const UEdGraphSchema_K2* Schema, class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph, UEdGraphPin*& LastThenPin, UEdGraphPin* SpawnedActorReturnPin)
{
bool bIsErrorFree = true;
for (auto SpawnVarPin : SpawnParmPins)
{
const bool bHasDefaultValue = !SpawnVarPin->DefaultValue.IsEmpty() || !SpawnVarPin->DefaultTextValue.IsEmpty() || SpawnVarPin->DefaultObject;
if (SpawnVarPin->LinkedTo.Num() > 0 || bHasDefaultValue)
{
if (SpawnVarPin->LinkedTo.Num() == 0)
{
UProperty* Property = FindField<UProperty>(ClassToSpawn, *SpawnVarPin->PinName);
// NULL property indicates that this pin was part of the original node, not the
// class we're assigning to:
if (!Property)
{
continue;
}
if (ClassToSpawn->ClassDefaultObject != nullptr)
{
// We don't want to generate an assignment node unless the default value
// differs from the value in the CDO:
FString DefaultValueAsString;
FBlueprintEditorUtils::PropertyValueToString(Property, (uint8*)ClassToSpawn->ClassDefaultObject, DefaultValueAsString);
if (DefaultValueAsString == SpawnVarPin->DefaultValue)
{
continue;
}
}
}
UFunction* SetByNameFunction = Schema->FindSetVariableByNameFunction(SpawnVarPin->PinType);
if (SetByNameFunction)
{
UK2Node_CallFunction* SetVarNode = NULL;
if (SpawnVarPin->PinType.bIsArray)
{
SetVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(this, SourceGraph);
}
else
{
SetVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
}
SetVarNode->SetFromFunction(SetByNameFunction);
SetVarNode->AllocateDefaultPins();
// Connect this node into the exec chain
bIsErrorFree &= Schema->TryCreateConnection(LastThenPin, SetVarNode->GetExecPin());
LastThenPin = SetVarNode->GetThenPin();
static FString ObjectParamName = FString(TEXT("Object"));
static FString ValueParamName = FString(TEXT("Value"));
static FString PropertyNameParamName = FString(TEXT("PropertyName"));
// Connect the new actor to the 'object' pin
UEdGraphPin* ObjectPin = SetVarNode->FindPinChecked(ObjectParamName);
SpawnedActorReturnPin->MakeLinkTo(ObjectPin);
// Fill in literal for 'property name' pin - name of pin is property name
UEdGraphPin* PropertyNamePin = SetVarNode->FindPinChecked(PropertyNameParamName);
PropertyNamePin->DefaultValue = SpawnVarPin->PinName;
UEdGraphPin* ValuePin = SetVarNode->FindPinChecked(ValueParamName);
if (SpawnVarPin->LinkedTo.Num() == 0 &&
SpawnVarPin->DefaultValue != FString() &&
SpawnVarPin->PinType.PinCategory == Schema->PC_Byte &&
SpawnVarPin->PinType.PinSubCategoryObject.IsValid() &&
SpawnVarPin->PinType.PinSubCategoryObject->IsA<UEnum>())
{
// Pin is an enum, we need to alias the enum value to an int:
UK2Node_EnumLiteral* EnumLiteralNode = CompilerContext.SpawnIntermediateNode<UK2Node_EnumLiteral>(this, SourceGraph);
EnumLiteralNode->Enum = CastChecked<UEnum>(SpawnVarPin->PinType.PinSubCategoryObject.Get());
EnumLiteralNode->AllocateDefaultPins();
EnumLiteralNode->FindPinChecked(Schema->PN_ReturnValue)->MakeLinkTo(ValuePin);
UEdGraphPin* InPin = EnumLiteralNode->FindPinChecked(UK2Node_EnumLiteral::GetEnumInputPinName());
InPin->DefaultValue = SpawnVarPin->DefaultValue;
}
else
{
// Move connection from the variable pin on the spawn node to the 'value' pin
CompilerContext.MovePinLinksToIntermediate(*SpawnVarPin, *ValuePin);
SetVarNode->PinConnectionListChanged(ValuePin);
}
}
}
}
return bIsErrorFree;
}
void UK2Node_VariableGet::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
// Do not attempt to expand the node when not a pure get nor when there is no property. Normal compilation error detection will detect the missing property.
if (!bIsPureGet && GetPropertyForVariable() != nullptr)
{
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UEdGraphPin* ValuePin = GetValuePin();
// Impure Get nodes convert into three nodes:
// 1. A pure Get node
// 2. An IsValid node
// 3. A Branch node (only impure part
// Create the impure Get node
UK2Node_VariableGet* VariableGetNode = CompilerContext.SpawnIntermediateNode<UK2Node_VariableGet>(this, SourceGraph);
VariableGetNode->VariableReference = VariableReference;
VariableGetNode->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(VariableGetNode, this);
// Move pin links from Get node we are expanding, to the new pure one we've created
CompilerContext.MovePinLinksToIntermediate(*ValuePin, *VariableGetNode->GetValuePin());
if (!VariableReference.IsLocalScope())
{
CompilerContext.MovePinLinksToIntermediate(*FindPin(Schema->PN_Self), *VariableGetNode->FindPin(Schema->PN_Self));
}
// Create the IsValid node
UK2Node_CallFunction* IsValidFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
// Based on if the type is an "Object" or a "Class" changes which function to use
if (ValuePin->PinType.PinCategory == UObject::StaticClass()->GetName())
{
IsValidFunction->SetFromFunction(UKismetSystemLibrary::StaticClass()->FindFunctionByName(GET_MEMBER_NAME_CHECKED(UKismetSystemLibrary, IsValid)));
}
else if (ValuePin->PinType.PinCategory == UClass::StaticClass()->GetName())
{
IsValidFunction->SetFromFunction(UKismetSystemLibrary::StaticClass()->FindFunctionByName(GET_MEMBER_NAME_CHECKED(UKismetSystemLibrary, IsValidClass)));
}
IsValidFunction->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(IsValidFunction, this);
// Connect the value pin from the new Get node to the IsValid
UEdGraphPin* ObjectPin = IsValidFunction->Pins[1];
check(ObjectPin->Direction == EGPD_Input);
ObjectPin->MakeLinkTo(VariableGetNode->GetValuePin());
// Create the Branch node
UK2Node_IfThenElse* BranchNode = CompilerContext.SpawnIntermediateNode<UK2Node_IfThenElse>(this, SourceGraph);
BranchNode->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(BranchNode, this);
// Connect the bool output pin from IsValid node to the Branch node
UEdGraphPin* BoolPin = IsValidFunction->Pins[2];
check(BoolPin->Direction == EGPD_Output);
BoolPin->MakeLinkTo(BranchNode->GetConditionPin());
// Connect the Branch node to the input of the impure Get node
CompilerContext.MovePinLinksToIntermediate(*GetExecPin(), *BranchNode->GetExecPin());
// Move the two Branch pins to the Branch node
CompilerContext.MovePinLinksToIntermediate(*FindPin(Schema->PN_Then), *BranchNode->FindPin(Schema->PN_Then));
CompilerContext.MovePinLinksToIntermediate(*FindPin(Schema->PN_Else), *BranchNode->FindPin(Schema->PN_Else));
BreakAllNodeLinks();
}
}
void UK2Node_SpawnActor::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
if (CompilerContext.bIsFullCompile)
{
static FName BeginSpawningBlueprintFuncName = GET_FUNCTION_NAME_CHECKED(UGameplayStatics, BeginSpawningActorFromBlueprint);
static FString BlueprintParamName = FString(TEXT("Blueprint"));
static FString WorldContextParamName = FString(TEXT("WorldContextObject"));
static FName FinishSpawningFuncName = GET_FUNCTION_NAME_CHECKED(UGameplayStatics, FinishSpawningActor);
static FString ActorParamName = FString(TEXT("Actor"));
static FString TransformParamName = FString(TEXT("SpawnTransform"));
static FString NoCollisionFailParamName = FString(TEXT("bNoCollisionFail"));
static FString ObjectParamName = FString(TEXT("Object"));
static FString ValueParamName = FString(TEXT("Value"));
static FString PropertyNameParamName = FString(TEXT("PropertyName"));
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UEdGraphPin* SpawnNodeExec = GetExecPin();
UEdGraphPin* SpawnNodeTransform = GetSpawnTransformPin();
UEdGraphPin* SpawnNodeNoCollisionFail = GetNoCollisionFailPin();
UEdGraphPin* SpawnWorldContextPin = GetWorldContextPin();
UEdGraphPin* SpawnBlueprintPin = GetBlueprintPin();
UEdGraphPin* SpawnNodeThen = GetThenPin();
UEdGraphPin* SpawnNodeResult = GetResultPin();
UBlueprint* SpawnBlueprint = NULL;
if(SpawnBlueprintPin != NULL)
{
SpawnBlueprint = Cast<UBlueprint>(SpawnBlueprintPin->DefaultObject);
}
if(0 == SpawnBlueprintPin->LinkedTo.Num())
{
if(NULL == SpawnBlueprint)
{
CompilerContext.MessageLog.Error(*LOCTEXT("SpawnActorNodeMissingBlueprint_Error", "Spawn node @@ must have a blueprint specified.").ToString(), this);
// we break exec links so this is the only error we get, don't want the SpawnActor node being considered and giving 'unexpected node' type warnings
BreakAllNodeLinks();
return;
}
// check if default blueprint is based on Actor
const UClass* GeneratedClass = SpawnBlueprint->GeneratedClass;
bool bInvalidBase = GeneratedClass && !GeneratedClass->IsChildOf(AActor::StaticClass());
const UClass* SkeletonGeneratedClass = Cast<UClass>(SpawnBlueprint->SkeletonGeneratedClass);
bInvalidBase |= SkeletonGeneratedClass && !SkeletonGeneratedClass->IsChildOf(AActor::StaticClass());
if(bInvalidBase)
{
CompilerContext.MessageLog.Error(*LOCTEXT("SpawnActorNodeInvalidBlueprint_Error", "Spawn node @@ must have a blueprint based on Actor specified.").ToString(), this);
// we break exec links so this is the only error we get, don't want the SpawnActor node being considered and giving 'unexpected node' type warnings
BreakAllNodeLinks();
return;
}
}
//////////////////////////////////////////////////////////////////////////
// create 'begin spawn' call node
UK2Node_CallFunction* CallBeginSpawnNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallBeginSpawnNode->FunctionReference.SetExternalMember(BeginSpawningBlueprintFuncName, UGameplayStatics::StaticClass());
CallBeginSpawnNode->AllocateDefaultPins();
UEdGraphPin* CallBeginExec = CallBeginSpawnNode->GetExecPin();
UEdGraphPin* CallBeginWorldContextPin = CallBeginSpawnNode->FindPinChecked(WorldContextParamName);
UEdGraphPin* CallBeginBlueprintPin = CallBeginSpawnNode->FindPinChecked(BlueprintParamName);
UEdGraphPin* CallBeginTransform = CallBeginSpawnNode->FindPinChecked(TransformParamName);
UEdGraphPin* CallBeginNoCollisionFail = CallBeginSpawnNode->FindPinChecked(NoCollisionFailParamName);
UEdGraphPin* CallBeginResult = CallBeginSpawnNode->GetReturnValuePin();
// Move 'exec' connection from spawn node to 'begin spawn'
CompilerContext.MovePinLinksToIntermediate(*SpawnNodeExec, *CallBeginExec);
if(SpawnBlueprintPin->LinkedTo.Num() > 0)
{
// Copy the 'blueprint' connection from the spawn node to 'begin spawn'
CompilerContext.MovePinLinksToIntermediate(*SpawnBlueprintPin, *CallBeginBlueprintPin);
}
else
{
// Copy blueprint literal onto begin spawn call
CallBeginBlueprintPin->DefaultObject = SpawnBlueprint;
}
// Copy the world context connection from the spawn node to 'begin spawn' if necessary
if (SpawnWorldContextPin)
{
CompilerContext.MovePinLinksToIntermediate(*SpawnWorldContextPin, *CallBeginWorldContextPin);
}
// Copy the 'transform' connection from the spawn node to 'begin spawn'
CompilerContext.MovePinLinksToIntermediate(*SpawnNodeTransform, *CallBeginTransform);
// Copy the 'bNoCollisionFail' connection from the spawn node to 'begin spawn'
CompilerContext.MovePinLinksToIntermediate(*SpawnNodeNoCollisionFail, *CallBeginNoCollisionFail);
//////////////////////////////////////////////////////////////////////////
// create 'finish spawn' call node
UK2Node_CallFunction* CallFinishSpawnNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallFinishSpawnNode->FunctionReference.SetExternalMember(FinishSpawningFuncName, UGameplayStatics::StaticClass());
CallFinishSpawnNode->AllocateDefaultPins();
UEdGraphPin* CallFinishExec = CallFinishSpawnNode->GetExecPin();
UEdGraphPin* CallFinishThen = CallFinishSpawnNode->GetThenPin();
UEdGraphPin* CallFinishActor = CallFinishSpawnNode->FindPinChecked(ActorParamName);
UEdGraphPin* CallFinishTransform = CallFinishSpawnNode->FindPinChecked(TransformParamName);
UEdGraphPin* CallFinishResult = CallFinishSpawnNode->GetReturnValuePin();
// Move 'then' connection from spawn node to 'finish spawn'
CompilerContext.MovePinLinksToIntermediate(*SpawnNodeThen, *CallFinishThen);
// Copy transform connection
CompilerContext.CopyPinLinksToIntermediate(*CallBeginTransform, *CallFinishTransform);
// Connect output actor from 'begin' to 'finish'
CallBeginResult->MakeLinkTo(CallFinishActor);
// Move result connection from spawn node to 'finish spawn'
CallFinishResult->PinType = SpawnNodeResult->PinType; // Copy type so it uses the right actor subclass
CompilerContext.MovePinLinksToIntermediate(*SpawnNodeResult, *CallFinishResult);
//////////////////////////////////////////////////////////////////////////
// create 'set var' nodes
// Get 'result' pin from 'begin spawn', this is the actual actor we want to set properties on
UK2Node_CallFunction* LastNode = CallBeginSpawnNode;
// Create 'set var by name' nodes and hook them up
for(int32 PinIdx=0; PinIdx < Pins.Num(); PinIdx++)
{
// Only create 'set param by name' node if this pin is linked to something
UEdGraphPin* SpawnVarPin = Pins[PinIdx];
if(SpawnVarPin->LinkedTo.Num() > 0)
{
UFunction* SetByNameFunction = Schema->FindSetVariableByNameFunction(SpawnVarPin->PinType);
if(SetByNameFunction)
{
UK2Node_CallFunction* SetVarNode = NULL;
if(SpawnVarPin->PinType.bIsArray)
{
SetVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(this, SourceGraph);
}
else
{
SetVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
}
SetVarNode->SetFromFunction(SetByNameFunction);
SetVarNode->AllocateDefaultPins();
// Connect this node into the exec chain
UEdGraphPin* LastThen = LastNode->GetThenPin();
UEdGraphPin* SetVarExec = SetVarNode->GetExecPin();
LastThen->MakeLinkTo(SetVarExec);
// Connect the new actor to the 'object' pin
UEdGraphPin* ObjectPin = SetVarNode->FindPinChecked(ObjectParamName);
CallBeginResult->MakeLinkTo(ObjectPin);
// Fill in literal for 'property name' pin - name of pin is property name
UEdGraphPin* PropertyNamePin = SetVarNode->FindPinChecked(PropertyNameParamName);
PropertyNamePin->DefaultValue = SpawnVarPin->PinName;
// Move connection from the variable pin on the spawn node to the 'value' pin
UEdGraphPin* ValuePin = SetVarNode->FindPinChecked(ValueParamName);
CompilerContext.MovePinLinksToIntermediate(*SpawnVarPin, *ValuePin);
if(SpawnVarPin->PinType.bIsArray)
{
SetVarNode->PinConnectionListChanged(ValuePin);
}
// Update 'last node in sequence' var
LastNode = SetVarNode;
}
}
}
// Make exec connection between 'then' on last node and 'finish'
UEdGraphPin* LastThen = LastNode->GetThenPin();
LastThen->MakeLinkTo(CallFinishExec);
// Break any links to the expanded node
BreakAllNodeLinks();
}
}
bool BuildLoop(UK2Node* Node, FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
check(Node && SourceGraph && Schema);
bool bResult = true;
// Create int Loop Counter
UK2Node_TemporaryVariable* LoopCounterNode = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(Node, SourceGraph);
LoopCounterNode->VariableType.PinCategory = Schema->PC_Int;
LoopCounterNode->AllocateDefaultPins();
LoopCounterOutPin = LoopCounterNode->GetVariablePin();
check(LoopCounterOutPin);
// Initialize loop counter
UK2Node_AssignmentStatement* LoopCounterInitialize = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(Node, SourceGraph);
LoopCounterInitialize->AllocateDefaultPins();
LoopCounterInitialize->GetValuePin()->DefaultValue = TEXT("0");
bResult &= Schema->TryCreateConnection(LoopCounterOutPin, LoopCounterInitialize->GetVariablePin());
StartLoopExecInPin = LoopCounterInitialize->GetExecPin();
check(StartLoopExecInPin);
// Create int Array Index
UK2Node_TemporaryVariable* ArrayIndexNode = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(Node, SourceGraph);
ArrayIndexNode->VariableType.PinCategory = Schema->PC_Int;
ArrayIndexNode->AllocateDefaultPins();
ArrayIndexOutPin = ArrayIndexNode->GetVariablePin();
check(ArrayIndexOutPin);
// Initialize array index
UK2Node_AssignmentStatement* ArrayIndexInitialize = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(Node, SourceGraph);
ArrayIndexInitialize->AllocateDefaultPins();
ArrayIndexInitialize->GetValuePin()->DefaultValue = TEXT("0");
bResult &= Schema->TryCreateConnection(ArrayIndexOutPin, ArrayIndexInitialize->GetVariablePin());
bResult &= Schema->TryCreateConnection(LoopCounterInitialize->GetThenPin(), ArrayIndexInitialize->GetExecPin());
// Do loop branch
UK2Node_IfThenElse* Branch = CompilerContext.SpawnIntermediateNode<UK2Node_IfThenElse>(Node, SourceGraph);
Branch->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(ArrayIndexInitialize->GetThenPin(), Branch->GetExecPin());
LoopCompleteOutExecPin = Branch->GetElsePin();
check(LoopCompleteOutExecPin);
// Do loop condition
UK2Node_CallFunction* Condition = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(Node, SourceGraph);
Condition->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(TEXT("Less_IntInt")));
Condition->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(Condition->GetReturnValuePin(), Branch->GetConditionPin());
bResult &= Schema->TryCreateConnection(Condition->FindPinChecked(TEXT("A")), LoopCounterOutPin);
LoopCounterLimitInPin = Condition->FindPinChecked(TEXT("B"));
check(LoopCounterLimitInPin);
// Array Index assigned
UK2Node_AssignmentStatement* ArrayIndexAssign = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(Node, SourceGraph);
ArrayIndexAssign->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(Branch->GetThenPin(), ArrayIndexAssign->GetExecPin());
bResult &= Schema->TryCreateConnection(ArrayIndexAssign->GetVariablePin(), ArrayIndexOutPin);
bResult &= Schema->TryCreateConnection(ArrayIndexAssign->GetValuePin(), LoopCounterOutPin);
// body sequence
UK2Node_ExecutionSequence* Sequence = CompilerContext.SpawnIntermediateNode<UK2Node_ExecutionSequence>(Node, SourceGraph);
Sequence->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(ArrayIndexAssign->GetThenPin(), Sequence->GetExecPin());
InsideLoopExecOutPin = Sequence->GetThenPinGivenIndex(0);
check(InsideLoopExecOutPin);
// Loop Counter increment
UK2Node_CallFunction* Increment = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(Node, SourceGraph);
Increment->SetFromFunction(UKismetMathLibrary::StaticClass()->FindFunctionByName(TEXT("Add_IntInt")));
Increment->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(Increment->FindPinChecked(TEXT("A")), LoopCounterOutPin);
Increment->FindPinChecked(TEXT("B"))->DefaultValue = TEXT("1");
// Loop Counter assigned
UK2Node_AssignmentStatement* LoopCounterAssign = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(Node, SourceGraph);
LoopCounterAssign->AllocateDefaultPins();
bResult &= Schema->TryCreateConnection(LoopCounterAssign->GetExecPin(), Sequence->GetThenPinGivenIndex(1));
bResult &= Schema->TryCreateConnection(LoopCounterAssign->GetVariablePin(), LoopCounterOutPin);
bResult &= Schema->TryCreateConnection(LoopCounterAssign->GetValuePin(), Increment->GetReturnValuePin());
bResult &= Schema->TryCreateConnection(LoopCounterAssign->GetThenPin(), Branch->GetExecPin());
return bResult;
}
void UK2Node_FormatText::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
/**
At the end of this, the UK2Node_FormatText will not be a part of the Blueprint, it merely handles connecting
the other nodes into the Blueprint.
*/
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
// Create a "Make Array" node to compile the list of arguments into an array for the Format function being called
UK2Node_MakeArray* MakeArrayNode = CompilerContext.SpawnIntermediateNode<UK2Node_MakeArray>(this, SourceGraph); //SourceGraph->CreateBlankNode<UK2Node_MakeArray>();
MakeArrayNode->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(MakeArrayNode, this);
UEdGraphPin* ArrayOut = MakeArrayNode->GetOutputPin();
// This is the node that does all the Format work.
UK2Node_CallFunction* CallFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallFunction->SetFromFunction(UKismetTextLibrary::StaticClass()->FindFunctionByName(GET_MEMBER_NAME_CHECKED(UKismetTextLibrary, Format)));
CallFunction->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(CallFunction, this);
// Connect the output of the "Make Array" pin to the function's "InArgs" pin
ArrayOut->MakeLinkTo(CallFunction->FindPin(TEXT("InArgs")));
// This will set the "Make Array" node's type, only works if one pin is connected.
MakeArrayNode->PinConnectionListChanged(ArrayOut);
// For each argument, we will need to add in a "Make Struct" node.
for(int32 ArgIdx = 0; ArgIdx < PinNames.Num(); ++ArgIdx)
{
UEdGraphPin* ArgumentPin = FindArgumentPin(PinNames[ArgIdx]);
// Spawn a "Make Struct" node to create the struct needed for formatting the text.
UK2Node_MakeStruct* PinMakeStruct = CompilerContext.SpawnIntermediateNode<UK2Node_MakeStruct>(this, SourceGraph);
PinMakeStruct->StructType = FFormatTextArgument::StaticStruct();
PinMakeStruct->AllocateDefaultPins();
// Set the struct's "ArgumentName" pin literal to be the argument pin's name.
PinMakeStruct->GetSchema()->TrySetDefaultText(*PinMakeStruct->FindPin("ArgumentName"), FText::AsCultureInvariant(ArgumentPin->PinName));
// Move the connection of the argument pin to the struct's "TextValue" pin, this will move the literal value if present.
CompilerContext.MovePinLinksToIntermediate(*ArgumentPin, *PinMakeStruct->FindPin("TextValue"));
// The "Make Array" node already has one pin available, so don't create one for ArgIdx == 0
if(ArgIdx > 0)
{
MakeArrayNode->AddInputPin();
}
// Find the input pin on the "Make Array" node by index.
FString PinName = FString::Printf(TEXT("[%d]"), ArgIdx);
UEdGraphPin* InputPin = MakeArrayNode->FindPin(PinName);
// Find the output for the pin's "Make Struct" node and link it to the corresponding pin on the "Make Array" node.
FindOutputStructPinChecked(PinMakeStruct)->MakeLinkTo(InputPin);
}
// Move connection of FormatText's "Result" pin to the call function's return value pin.
CompilerContext.MovePinLinksToIntermediate(*FindPin(TEXT("Result")), *CallFunction->GetReturnValuePin());
// Move connection of FormatText's "Format" pin to the call function's "InPattern" pin
CompilerContext.MovePinLinksToIntermediate(*GetFormatPin(), *CallFunction->FindPin(TEXT("InPattern")));
BreakAllNodeLinks();
}
void UK2Node_CallFunctionOnMember::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
// This skips UK2Node_CallFunction::ExpandNode. Instead it spawns a new CallFunction node and does hookup that this is interested in,
// and then that CallFunction node will get its own Expansion to handle the parent portions
UK2Node::ExpandNode(CompilerContext, SourceGraph);
if (CompilerContext.bIsFullCompile)
{
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UFunction* Function = GetTargetFunction();
// Create real 'call function' node.
UK2Node_CallFunction* CallFuncNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallFuncNode->SetFromFunction(Function);
CallFuncNode->AllocateDefaultPins();
UEdGraphPin* CallFuncSelfPin = Schema->FindSelfPin(*CallFuncNode, EGPD_Input);
// Now because you can wire multiple variables to a self pin, need to iterate over each one and create a 'get var' node for each
UEdGraphPin* SelfPin = Schema->FindSelfPin(*this, EGPD_Input);
if(SelfPin != NULL)
{
if (SelfPin->LinkedTo.Num() == 0)
{
UK2Node_VariableGet* GetVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_VariableGet>(this, SourceGraph);
GetVarNode->VariableReference.SetSelfMember(MemberVariableToCallOn.GetMemberName());
GetVarNode->AllocateDefaultPins();
if (UEdGraphPin* ValuePin = GetVarNode->GetValuePin())
{
ValuePin->MakeLinkTo(CallFuncSelfPin);
}
}
else
{
for (int32 TargetIdx = 0; TargetIdx < SelfPin->LinkedTo.Num(); TargetIdx++)
{
UEdGraphPin* SourcePin = SelfPin->LinkedTo[TargetIdx];
if (SourcePin != NULL)
{
// Create 'get var' node to get the member
UK2Node_VariableGet* GetVarNode = CompilerContext.SpawnIntermediateNode<UK2Node_VariableGet>(this, SourceGraph);
GetVarNode->VariableReference = MemberVariableToCallOn;
GetVarNode->AllocateDefaultPins();
UEdGraphPin* VarNodeSelfPin = Schema->FindSelfPin(*GetVarNode, EGPD_Input);
if (VarNodeSelfPin != NULL)
{
VarNodeSelfPin->MakeLinkTo(SourcePin);
UEdGraphPin* ValuePin = GetVarNode->GetValuePin();
ValuePin->MakeLinkTo(CallFuncSelfPin);
}
else
{
// Failed to find the member to call on for this expansion, so warn about it
CompilerContext.MessageLog.Warning(*LOCTEXT("CallFunctionOnInvalidMember_Warning", "Function node @@ called on invalid target member.").ToString(), this);
}
}
}
}
}
// Now move the rest of the connections (including exec connections...)
for(int32 SrcPinIdx=0; SrcPinIdx<Pins.Num(); SrcPinIdx++)
{
UEdGraphPin* SrcPin = Pins[SrcPinIdx];
if(SrcPin != NULL && SrcPin != SelfPin) // check its not the self pin
{
UEdGraphPin* DestPin = CallFuncNode->FindPin(SrcPin->PinName);
if(DestPin != NULL)
{
CompilerContext.MovePinLinksToIntermediate(*SrcPin, *DestPin); // Source node is assumed to be owner...
}
}
}
// Finally, break any remaining links on the 'call func on member' node
BreakAllNodeLinks();
}
}
void UK2Node_GetEnumeratorName::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
UEnum* Enum = GetEnum();
if(NULL == Enum)
{
CompilerContext.MessageLog.Error(*FString::Printf(*NSLOCTEXT("K2Node", "GetEnumeratorNam_Error_MustHaveValidName", "@@ must have a valid enum defined").ToString()), this);
return;
}
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
const UFunction* Function = UKismetNodeHelperLibrary::StaticClass()->FindFunctionByName( GetFunctionName() );
check(NULL != Function);
UK2Node_CallFunction* CallGetName = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallGetName->SetFromFunction(Function);
CallGetName->AllocateDefaultPins();
check(CallGetName->IsNodePure());
//OPUTPUT PIN
UEdGraphPin* OrgReturnPin = FindPinChecked(Schema->PN_ReturnValue);
UEdGraphPin* NewReturnPin = CallGetName->GetReturnValuePin();
check(NULL != NewReturnPin);
CompilerContext.MovePinLinksToIntermediate(*OrgReturnPin, *NewReturnPin);
//ENUM PIN
UEdGraphPin* EnumPin = CallGetName->FindPinChecked(TEXT("Enum"));
Schema->TrySetDefaultObject(*EnumPin, Enum);
check(EnumPin->DefaultObject == Enum);
//VALUE PIN
UEdGraphPin* OrgInputPin = FindPinChecked(EnumeratorPinName);
UEdGraphPin* IndexPin = CallGetName->FindPinChecked(TEXT("EnumeratorValue"));
check(EGPD_Input == IndexPin->Direction && Schema->PC_Byte == IndexPin->PinType.PinCategory);
CompilerContext.MovePinLinksToIntermediate(*OrgInputPin, *IndexPin);
if (!IndexPin->LinkedTo.Num())
{
//MAKE LITERAL BYTE FROM LITERAL ENUM
const FString EnumLiteral = IndexPin->GetDefaultAsString();
const int32 NumericValue = Enum->GetValueByName(*EnumLiteral);
if (NumericValue == INDEX_NONE)
{
CompilerContext.MessageLog.Error(*FString::Printf(*NSLOCTEXT("K2Node", "GetEnumeratorNam_Error_InvalidName", "@@ has invalid enum value '%s'").ToString(), *EnumLiteral), this);
return;
}
const FString DefaultByteValue = FString::FromInt(NumericValue);
// LITERAL BYTE FUNCTION
const FName FunctionName = GET_FUNCTION_NAME_CHECKED(UKismetSystemLibrary, MakeLiteralByte);
UK2Node_CallFunction* MakeLiteralByte = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
MakeLiteralByte->SetFromFunction(UKismetSystemLibrary::StaticClass()->FindFunctionByName(FunctionName));
MakeLiteralByte->AllocateDefaultPins();
UEdGraphPin* MakeLiteralByteReturnPin = MakeLiteralByte->FindPinChecked(Schema->PN_ReturnValue);
Schema->TryCreateConnection(MakeLiteralByteReturnPin, IndexPin);
UEdGraphPin* MakeLiteralByteInputPin = MakeLiteralByte->FindPinChecked(TEXT("Value"));
MakeLiteralByteInputPin->DefaultValue = DefaultByteValue;
}
BreakAllNodeLinks();
}
