FText UK2Node_Message::GetNodeTitle(ENodeTitleType::Type TitleType) const
{
FText NodeName;
if (UFunction* Function = GetTargetFunction())
{
if (!CachedNodeTitles.IsTitleCached(TitleType))
{
FText NodeNameText = FText::FromString(UK2Node_CallFunction::GetUserFacingFunctionName(Function));
if (TitleType == ENodeTitleType::MenuTitle)
{
// FText::Format() is slow, so we cache this to save on performance
CachedNodeTitles.SetCachedTitle(TitleType, FText::Format(LOCTEXT("ListTitle", "{0} (Message)"), NodeNameText));
}
else
{
FFormatNamedArguments Args;
Args.Add(TEXT("NodeName"), NodeNameText);
Args.Add(TEXT("OuterClassName"), FText::FromString(Function->GetOuterUClass()->GetName()));
FText NodeTitle = FText::Format(NSLOCTEXT("K2Node", "CallInterfaceContext", "{NodeName}\nUsing Interface {OuterClassName}"), Args);
// FText::Format() is slow, so we cache this to save on performance
CachedNodeTitles.SetCachedTitle(TitleType, NodeTitle);
}
}
}
else
{
return NSLOCTEXT("K2Node", "InvalidMessageNode", "Invalid Message Node");
}
return CachedNodeTitles.GetCachedTitle(TitleType);
}
void UK2Node_CallArrayFunction::GetArrayPins(TArray< FArrayPropertyPinCombo >& OutArrayPinInfo ) const
{
OutArrayPinInfo.Empty();
UFunction* TargetFunction = GetTargetFunction();
check(TargetFunction);
FString ArrayPointerMetaData = TargetFunction->GetMetaData(FBlueprintMetadata::MD_ArrayParam);
TArray<FString> ArrayPinComboNames;
ArrayPointerMetaData.ParseIntoArray(ArrayPinComboNames, TEXT(","), true);
for(auto Iter = ArrayPinComboNames.CreateConstIterator(); Iter; ++Iter)
{
TArray<FString> ArrayPinNames;
Iter->ParseIntoArray(ArrayPinNames, TEXT("|"), true);
FArrayPropertyPinCombo ArrayInfo;
ArrayInfo.ArrayPin = FindPin(ArrayPinNames[0]);
if(ArrayPinNames.Num() > 1)
{
ArrayInfo.ArrayPropPin = FindPin(ArrayPinNames[1]);
}
if(ArrayInfo.ArrayPin)
{
OutArrayPinInfo.Add(ArrayInfo);
}
}
}
void UK2Node_AddComponent::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
auto TransformPin = GetRelativeTransformPin();
if (TransformPin && !TransformPin->LinkedTo.Num())
{
FString DefaultValue;
// Try and find the template and get relative transform from it
UEdGraphPin* TemplateNamePin = GetTemplateNamePinChecked();
const FString TemplateName = TemplateNamePin->DefaultValue;
check(CompilerContext.Blueprint);
USceneComponent* SceneCompTemplate = Cast<USceneComponent>(CompilerContext.Blueprint->FindTemplateByName(FName(*TemplateName)));
if (SceneCompTemplate)
{
FTransform TemplateTransform = FTransform(SceneCompTemplate->RelativeRotation, SceneCompTemplate->RelativeLocation, SceneCompTemplate->RelativeScale3D);
DefaultValue = TemplateTransform.ToString();
}
auto ValuePin = InnerHandleAutoCreateRef(this, TransformPin, CompilerContext, SourceGraph, !DefaultValue.IsEmpty());
if (ValuePin)
{
ValuePin->DefaultValue = DefaultValue;
}
}
if (bHasExposedVariable)
{
static FString ObjectParamName = FString(TEXT("Object"));
static FString ValueParamName = FString(TEXT("Value"));
static FString PropertyNameParamName = FString(TEXT("PropertyName"));
UK2Node_AddComponent* NewNode = CompilerContext.SpawnIntermediateNode<UK2Node_AddComponent>(this, SourceGraph);
NewNode->SetFromFunction(GetTargetFunction());
NewNode->AllocateDefaultPinsWithoutExposedVariables();
// function parameters
const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
CompilerContext.MovePinLinksToIntermediate(*FindPin(K2Schema->PN_Self), *NewNode->FindPin(K2Schema->PN_Self));
CompilerContext.MovePinLinksToIntermediate(*GetTemplateNamePinChecked(), *NewNode->GetTemplateNamePinChecked());
CompilerContext.MovePinLinksToIntermediate(*GetRelativeTransformPin(), *NewNode->GetRelativeTransformPin());
CompilerContext.MovePinLinksToIntermediate(*GetManualAttachmentPin(), *NewNode->GetManualAttachmentPin());
UEdGraphPin* ReturnPin = NewNode->GetReturnValuePin();
UEdGraphPin* OriginalReturnPin = GetReturnValuePin();
check((NULL != ReturnPin) && (NULL != OriginalReturnPin));
ReturnPin->PinType = OriginalReturnPin->PinType;
CompilerContext.MovePinLinksToIntermediate(*OriginalReturnPin, *ReturnPin);
// exec in
CompilerContext.MovePinLinksToIntermediate(*GetExecPin(), *NewNode->GetExecPin());
UEdGraphPin* LastThen = FKismetCompilerUtilities::GenerateAssignmentNodes( CompilerContext, SourceGraph, NewNode, this, ReturnPin, GetSpawnedType() );
CompilerContext.MovePinLinksToIntermediate(*GetThenPin(), *LastThen);
BreakAllNodeLinks();
}
}
void UK2Node_CommutativeAssociativeBinaryOperator::ExpandNode(FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
if (NumAdditionalInputs > 0)
{
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UEdGraphPin* LastOutPin = NULL;
const UFunction* const Function = GetTargetFunction();
const UEdGraphPin* SrcOutPin = FindOutPin();
const UEdGraphPin* SrcSelfPin = FindSelfPin();
UEdGraphPin* SrcFirstInput = GetInputPin(0);
check(SrcFirstInput);
for(int32 PinIndex = 0; PinIndex < Pins.Num(); PinIndex++)
{
UEdGraphPin* CurrentPin = Pins[PinIndex];
if( (CurrentPin == SrcFirstInput) || (CurrentPin == SrcOutPin) || (SrcSelfPin == CurrentPin) )
{
continue;
}
UK2Node_CommutativeAssociativeBinaryOperator* NewOperator = SourceGraph->CreateBlankNode<UK2Node_CommutativeAssociativeBinaryOperator>();
NewOperator->SetFromFunction(Function);
NewOperator->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(NewOperator, this);
UEdGraphPin* NewOperatorInputA = NewOperator->GetInputPin(0);
check(NewOperatorInputA);
if(LastOutPin)
{
Schema->TryCreateConnection(LastOutPin, NewOperatorInputA);
}
else
{
// handle first created node (SrcFirstInput is skipped, and has no own node).
CompilerContext.MovePinLinksToIntermediate(*SrcFirstInput, *NewOperatorInputA);
}
UEdGraphPin* NewOperatorInputB = NewOperator->GetInputPin(1);
check(NewOperatorInputB);
CompilerContext.MovePinLinksToIntermediate(*CurrentPin, *NewOperatorInputB);
LastOutPin = NewOperator->FindOutPin();
check(LastOutPin);
}
UEdGraphPin* TrueOutPin = FindOutPin();
check(TrueOutPin);
CompilerContext.MovePinLinksToIntermediate(*TrueOutPin, *LastOutPin);
BreakAllNodeLinks();
}
}
void UK2Node_Message::AllocateDefaultPins()
{
UFunction* MessageNodeFunction = GetTargetFunction();
// since we have branching logic in ExpandNode(), this has to be an impure
// node with exec pins
//
// @TODO: make it so we can have impure message nodes using a custom
// FNodeHandlingFunctor, instead of ExpandNode()
if (MessageNodeFunction && MessageNodeFunction->HasAnyFunctionFlags(FUNC_BlueprintPure))
{
// Input - Execution Pin
CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_Exec, TEXT(""), NULL, false, false, UEdGraphSchema_K2::PN_Execute);
// Output - Execution Pin
CreatePin(EGPD_Output, UEdGraphSchema_K2::PC_Exec, TEXT(""), NULL, false, false, UEdGraphSchema_K2::PN_Then);
}
Super::AllocateDefaultPins();
}
void UK2Node_CommutativeAssociativeBinaryOperator::AllocateDefaultPins()
{
Super::AllocateDefaultPins();
const UFunction* Function = GetTargetFunction();
if(NULL != Function)
{
check(Function->HasAnyFunctionFlags(FUNC_BlueprintPure));
#if DO_CHECK
ensure(FindOutPin());
ensure((FindSelfPin() ? 4 : 3) == Pins.Num());
{
//VALIDATION
const FEdGraphPinType InputType = GetType();
int32 NativeInputPinsNum = 0;
for (int32 PinIt = 0; PinIt < Pins.Num(); PinIt++)
{
const UEdGraphPin* Pin = Pins[PinIt];
if (Pin != FindSelfPin())
{
ensure(InputType == Pin->PinType);
NativeInputPinsNum += (EEdGraphPinDirection::EGPD_Input == Pin->Direction) ? 1 : 0;
}
}
ensure(BinaryOperatorInputsNum == NativeInputPinsNum);
}
#endif // DO_CHECK
for (int32 i = 0; i < NumAdditionalInputs; ++i)
{
AddInputPinInner(i);
}
}
else
{
const UClass* FunctionParentClass = FunctionReference.GetMemberParentClass(GetBlueprintClassFromNode());
Message_Error(FString::Printf(
*LOCTEXT("NoFunction_Error", "CommutativeAssociativeBinaryOperator has no function: '%s' class: '%s'").ToString(),
*FunctionReference.GetMemberName().ToString(),
(FunctionParentClass ? *FunctionParentClass->GetName() : TEXT("None"))
));
}
}
void UK2Node_CallArrayFunction::GetArrayTypeDependentPins(TArray<UEdGraphPin*>& OutPins) const
{
OutPins.Empty();
UFunction* TargetFunction = GetTargetFunction();
check(TargetFunction);
const FString DependentPinMetaData = TargetFunction->GetMetaData(FBlueprintMetadata::MD_ArrayDependentParam);
TArray<FString> TypeDependentPinNames;
DependentPinMetaData.ParseIntoArray(TypeDependentPinNames, TEXT(","), true);
for(TArray<UEdGraphPin*>::TConstIterator it(Pins); it; ++it)
{
UEdGraphPin* CurrentPin = *it;
int32 ItemIndex = 0;
if( CurrentPin && TypeDependentPinNames.Find(CurrentPin->PinName, ItemIndex) )
{
OutPins.Add(CurrentPin);
}
}
}
void UK2Node_Message::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UEdGraphPin* ExecPin = Schema->FindExecutionPin(*this, EGPD_Input);
const bool bExecPinConnected = ExecPin && (ExecPin->LinkedTo.Num() > 0);
UEdGraphPin* ThenPin = Schema->FindExecutionPin(*this, EGPD_Output);
const bool bThenPinConnected = ThenPin && (ThenPin->LinkedTo.Num() > 0);
// Skip ourselves if our exec isn't wired up
if (bExecPinConnected)
{
// Make sure our interface is valid
if (FunctionReference.GetMemberParentClass(this) == NULL)
{
CompilerContext.MessageLog.Error(*FString::Printf(*LOCTEXT("MessageNodeInvalid_Error", "Message node @@ has an invalid interface.").ToString()), this);
return;
}
UFunction* MessageNodeFunction = GetTargetFunction();
if (MessageNodeFunction == NULL)
{
//@TODO: Why do this here in teh compiler, it's already done on AllocateDefaultPins() during on-load node reconstruction
MessageNodeFunction = Cast<UFunction>(UK2Node::FindRemappedField(FunctionReference.GetMemberParentClass(this), FunctionReference.GetMemberName()));
}
if (MessageNodeFunction == NULL)
{
CompilerContext.MessageLog.Error(*FString::Printf(*LOCTEXT("MessageNodeInvalidFunction_Error", "Unable to find function with name %s for Message node @@.").ToString(), *(FunctionReference.GetMemberName().ToString())), this);
return;
}
// Check to make sure we have a target
UEdGraphPin* MessageSelfPin = Schema->FindSelfPin(*this, EGPD_Input);
if( !MessageSelfPin || MessageSelfPin->LinkedTo.Num() == 0 )
{
CompilerContext.MessageLog.Error(*FString::Printf(*LOCTEXT("MessageNodeSelfPin_Error", "Message node @@ must have a valid target or reference to self.").ToString()), this);
return;
}
// First, create an internal cast-to-interface node
UK2Node_DynamicCast* CastToInterfaceNode = CompilerContext.SpawnIntermediateNode<UK2Node_DynamicCast>(this, SourceGraph);
CastToInterfaceNode->TargetType = MessageNodeFunction->GetOuterUClass();
CastToInterfaceNode->SetPurity(false);
CastToInterfaceNode->AllocateDefaultPins();
UEdGraphPin* CastToInterfaceResultPin = CastToInterfaceNode->GetCastResultPin();
if( !CastToInterfaceResultPin )
{
CompilerContext.MessageLog.Error(*LOCTEXT("InvalidInterfaceClass_Error", "Node @@ has an invalid target interface class").ToString(), this);
return;
}
CastToInterfaceResultPin->PinType.PinSubCategoryObject = *CastToInterfaceNode->TargetType;
if (ExecPin != nullptr)
{
UEdGraphPin* CastExecInput = CastToInterfaceNode->GetExecPin();
check(CastExecInput != nullptr);
// Wire up the connections
CompilerContext.MovePinLinksToIntermediate(*ExecPin, *CastExecInput);
}
UEdGraphPin* CastToInterfaceSourceObjectPin = CastToInterfaceNode->GetCastSourcePin();
CompilerContext.MovePinLinksToIntermediate(*MessageSelfPin, *CastToInterfaceSourceObjectPin);
// Next, create the function call node
UK2Node_CallFunction* FunctionCallNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
FunctionCallNode->bIsInterfaceCall = true;
FunctionCallNode->FunctionReference = FunctionReference;
FunctionCallNode->AllocateDefaultPins();
UEdGraphPin* CastToInterfaceValidPin = CastToInterfaceNode->GetValidCastPin();
check(CastToInterfaceValidPin != nullptr);
UEdGraphPin* LastOutCastFaildPin = CastToInterfaceNode->GetInvalidCastPin();
check(LastOutCastFaildPin != nullptr);
UEdGraphPin* LastOutCastSuccessPin = CastToInterfaceValidPin;
// Wire up the connections
if (UEdGraphPin* CallFunctionExecPin = Schema->FindExecutionPin(*FunctionCallNode, EGPD_Input))
{
CastToInterfaceValidPin->MakeLinkTo(CallFunctionExecPin);
LastOutCastSuccessPin = Schema->FindExecutionPin(*FunctionCallNode, EGPD_Output);
}
// Self pin
UEdGraphPin* FunctionCallSelfPin = Schema->FindSelfPin(*FunctionCallNode, EGPD_Input);
CastToInterfaceResultPin->MakeLinkTo(FunctionCallSelfPin);
UFunction* ArrayClearFunction = UKismetArrayLibrary::StaticClass()->FindFunctionByName(FName(TEXT("Array_Clear")));
check(ArrayClearFunction);
bool const bIsPureFunc = Super::IsNodePure();
// Variable pins - Try to associate variable inputs to the message node with the variable inputs and outputs to the call function node
for( int32 i = 0; i < Pins.Num(); i++ )
{
UEdGraphPin* CurrentPin = Pins[i];
if( CurrentPin && (CurrentPin->PinType.PinCategory != Schema->PC_Exec) && (CurrentPin->PinName != Schema->PN_Self) )
{
// Try to find a match for the pin on the function call node
UEdGraphPin* FunctionCallPin = FunctionCallNode->FindPin(CurrentPin->PinName);
if( FunctionCallPin )
{
// Move pin links if the pin is connected...
CompilerContext.MovePinLinksToIntermediate(*CurrentPin, *FunctionCallPin);
// when cast fails all return values must be cleared.
if (EEdGraphPinDirection::EGPD_Output == CurrentPin->Direction)
{
UEdGraphPin* VarOutPin = FunctionCallPin;
if (bIsPureFunc)
{
// since we cannot directly use the output from the
// function call node (since it is pure, and invoking
// it with a null target would cause an error), we
// have to use a temporary variable in it's place...
UK2Node_TemporaryVariable* TempVar = CompilerContext.SpawnIntermediateNode<UK2Node_TemporaryVariable>(this, SourceGraph);
TempVar->VariableType = CurrentPin->PinType;
TempVar->AllocateDefaultPins();
VarOutPin = TempVar->GetVariablePin();
// nodes using the function's outputs directly, now
// use this TempVar node instead
CompilerContext.MovePinLinksToIntermediate(*FunctionCallPin, *VarOutPin);
// on a successful cast, the temp var is filled with
// the function's value, on a failed cast, the var
// is filled with a default value (DefaultValueNode,
// below)... this is the node for the success case:
UK2Node_AssignmentStatement* AssignTempVar = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(this, SourceGraph);
AssignTempVar->AllocateDefaultPins();
// assign the output from the pure function node to
// the TempVar (either way, this message node is
// returning the TempVar's value, so on a successful
// cast we want it to have the function's result)
UEdGraphPin* ValueInPin = AssignTempVar->GetValuePin();
Schema->TryCreateConnection(FunctionCallPin, ValueInPin);
AssignTempVar->PinConnectionListChanged(ValueInPin);
UEdGraphPin* VarInPin = AssignTempVar->GetVariablePin();
Schema->TryCreateConnection(VarOutPin, VarInPin);
AssignTempVar->PinConnectionListChanged(VarInPin);
// fold this AssignTempVar node into the cast's
// success execution chain
Schema->TryCreateConnection(AssignTempVar->GetExecPin(), LastOutCastSuccessPin);
LastOutCastSuccessPin = AssignTempVar->GetThenPin();
}
UK2Node* DefaultValueNode = NULL;
UEdGraphPin* DefaultValueThenPin = NULL;
if (CurrentPin->PinType.bIsArray)
{
UK2Node_CallArrayFunction* ClearArray = CompilerContext.SpawnIntermediateNode<UK2Node_CallArrayFunction>(this, SourceGraph);
DefaultValueNode = ClearArray;
ClearArray->SetFromFunction(ArrayClearFunction);
ClearArray->AllocateDefaultPins();
UEdGraphPin* ArrayPin = ClearArray->GetTargetArrayPin();
check(ArrayPin);
Schema->TryCreateConnection(ArrayPin, VarOutPin);
ClearArray->PinConnectionListChanged(ArrayPin);
DefaultValueThenPin = ClearArray->GetThenPin();
}
else
{
UK2Node_AssignmentStatement* AssignDefaultValue = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(this, SourceGraph);
DefaultValueNode = AssignDefaultValue;
AssignDefaultValue->AllocateDefaultPins();
Schema->TryCreateConnection(AssignDefaultValue->GetVariablePin(), VarOutPin);
AssignDefaultValue->PinConnectionListChanged(AssignDefaultValue->GetVariablePin());
Schema->SetPinDefaultValueBasedOnType(AssignDefaultValue->GetValuePin());
DefaultValueThenPin = AssignDefaultValue->GetThenPin();
}
UEdGraphPin* DefaultValueExecPin = DefaultValueNode->GetExecPin();
check(DefaultValueExecPin);
Schema->TryCreateConnection(DefaultValueExecPin, LastOutCastFaildPin);
LastOutCastFaildPin = DefaultValueThenPin;
check(LastOutCastFaildPin);
}
}
else
{
UE_LOG(LogK2Compiler, Log, TEXT("%s"), *LOCTEXT("NoPinConnectionFound_Error", "Unable to find connection for pin! Check AllocateDefaultPins() for consistency!").ToString());
}
}
}
if( bThenPinConnected )
{
check(LastOutCastFaildPin != nullptr);
// Failure case for the cast runs straight through to the exit
CompilerContext.CopyPinLinksToIntermediate(*ThenPin, *LastOutCastFaildPin);
check(LastOutCastSuccessPin != nullptr);
// Copy all links from the invalid cast case above to the call function node
CompilerContext.MovePinLinksToIntermediate(*ThenPin, *LastOutCastSuccessPin);
}
}
// Break all connections to the original node, so it will be pruned
BreakAllNodeLinks();
}
void UK2Node_LoadAsset::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
check(Schema);
bool bIsErrorFree = true;
// Create LoadAsset function call
auto CallLoadAssetNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
CallLoadAssetNode->FunctionReference.SetExternalMember(NativeFunctionName(), UKismetSystemLibrary::StaticClass());
CallLoadAssetNode->AllocateDefaultPins();
// connect to input exe
{
auto InputExePin = GetExecPin();
auto CallFunctionInputExePin = CallLoadAssetNode->GetExecPin();
bIsErrorFree &= InputExePin && CallFunctionInputExePin && CompilerContext.MovePinLinksToIntermediate(*InputExePin, *CallFunctionInputExePin).CanSafeConnect();
}
// Create Local Variable
UK2Node_TemporaryVariable* TempVarOutput = CompilerContext.SpawnInternalVariable(this, GetOutputCategory(), FString(), UObject::StaticClass(), false);
// Create assign node
auto AssignNode = CompilerContext.SpawnIntermediateNode<UK2Node_AssignmentStatement>(this, SourceGraph);
AssignNode->AllocateDefaultPins();
auto LoadedObjectVariablePin = TempVarOutput->GetVariablePin();
// connect local variable to assign node
{
auto AssignLHSPPin = AssignNode->GetVariablePin();
bIsErrorFree &= AssignLHSPPin && LoadedObjectVariablePin && Schema->TryCreateConnection(AssignLHSPPin, LoadedObjectVariablePin);
}
// connect local variable to output
{
auto OutputObjectPinPin = FindPin(GetOutputPinName());
bIsErrorFree &= LoadedObjectVariablePin && OutputObjectPinPin && CompilerContext.MovePinLinksToIntermediate(*OutputObjectPinPin, *LoadedObjectVariablePin).CanSafeConnect();
}
// connect assign exec input to function output
{
auto CallFunctionOutputExePin = CallLoadAssetNode->FindPin(Schema->PN_Then);
auto AssignInputExePin = AssignNode->GetExecPin();
bIsErrorFree &= AssignInputExePin && CallFunctionOutputExePin && Schema->TryCreateConnection(AssignInputExePin, CallFunctionOutputExePin);
}
// connect assign exec output to output
{
auto OutputExePin = FindPin(Schema->PN_Then);
auto AssignOutputExePin = AssignNode->GetThenPin();
bIsErrorFree &= OutputExePin && AssignOutputExePin && CompilerContext.MovePinLinksToIntermediate(*OutputExePin, *AssignOutputExePin).CanSafeConnect();
}
// connect to asset
{
auto AssetPin = FindPin(GetInputPinName());
auto CallFunctionAssetPin = CallLoadAssetNode->FindPin(GetInputPinName());
ensure(CallFunctionAssetPin);
bIsErrorFree &= AssetPin && CallFunctionAssetPin && CompilerContext.MovePinLinksToIntermediate(*AssetPin, *CallFunctionAssetPin).CanSafeConnect();
}
// Create OnLoadEvent
const FString DelegateOnLoadedParamName(TEXT("OnLoaded"));
auto OnLoadEventNode = CompilerContext.SpawnIntermediateNode<UK2Node_CustomEvent>(this, SourceGraph);
OnLoadEventNode->CustomFunctionName = *FString::Printf(TEXT("OnLoaded_%s"), *OnLoadEventNode->NodeGuid.ToString());
OnLoadEventNode->AllocateDefaultPins();
{
UFunction* LoadAssetFunction = CallLoadAssetNode->GetTargetFunction();
UDelegateProperty* OnLoadDelegateProperty = LoadAssetFunction ? FindField<UDelegateProperty>(LoadAssetFunction, *DelegateOnLoadedParamName) : nullptr;
UFunction* OnLoadedSignature = OnLoadDelegateProperty ? OnLoadDelegateProperty->SignatureFunction : nullptr;
ensure(OnLoadedSignature);
for (TFieldIterator<UProperty> PropIt(OnLoadedSignature); PropIt && (PropIt->PropertyFlags & CPF_Parm); ++PropIt)
{
const UProperty* Param = *PropIt;
if (!Param->HasAnyPropertyFlags(CPF_OutParm) || Param->HasAnyPropertyFlags(CPF_ReferenceParm))
{
FEdGraphPinType PinType;
bIsErrorFree &= Schema->ConvertPropertyToPinType(Param, /*out*/ PinType);
bIsErrorFree &= (NULL != OnLoadEventNode->CreateUserDefinedPin(Param->GetName(), PinType, EGPD_Output));
}
}
}
// connect delegate
{
auto CallFunctionDelegatePin = CallLoadAssetNode->FindPin(DelegateOnLoadedParamName);
ensure(CallFunctionDelegatePin);
auto EventDelegatePin = OnLoadEventNode->FindPin(UK2Node_CustomEvent::DelegateOutputName);
bIsErrorFree &= CallFunctionDelegatePin && EventDelegatePin && Schema->TryCreateConnection(CallFunctionDelegatePin, EventDelegatePin);
}
// connect loaded object from event to assign
{
auto LoadedAssetEventPin = OnLoadEventNode->FindPin(TEXT("Loaded"));
ensure(LoadedAssetEventPin);
auto AssignRHSPPin = AssignNode->GetValuePin();
bIsErrorFree &= AssignRHSPPin && LoadedAssetEventPin && Schema->TryCreateConnection(LoadedAssetEventPin, AssignRHSPPin);
}
if (!bIsErrorFree)
{
CompilerContext.MessageLog.Error(*LOCTEXT("InternalConnectionError", "K2Node_LoadAsset: Internal connection error. @@").ToString(), this);
}
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();
}
}
