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ba111a9270
UGameplayStatics::SpawnObject checks ClassWithin #codereview Nick.Whiting, Marc.Audy [CL 2582478 by Maciej Mroz in Main branch]
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#include "BlueprintGraphPrivatePCH.h"
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#include "KismetCompiler.h"
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#include "Runtime/Engine/Classes/Kismet/GameplayStatics.h"
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#include "K2Node_GenericCreateObject.h"
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#define LOCTEXT_NAMESPACE "K2Node_GenericCreateObject"
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void UK2Node_GenericCreateObject::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
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{
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UK2Node_CallFunction* CallCreateNode = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
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CallCreateNode->FunctionReference.SetExternalMember(GET_FUNCTION_NAME_CHECKED(UGameplayStatics, SpawnObject), UGameplayStatics::StaticClass());
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CallCreateNode->AllocateDefaultPins();
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bool bSucceeded = true;
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//connect exe
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{
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auto SpawnExecPin = GetExecPin();
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auto CallExecPin = CallCreateNode->GetExecPin();
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bSucceeded &= SpawnExecPin && CallExecPin && CompilerContext.MovePinLinksToIntermediate(*SpawnExecPin, *CallExecPin).CanSafeConnect();
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}
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//connect class
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{
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auto SpawnClassPin = GetClassPin();
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auto CallClassPin = CallCreateNode->FindPin(TEXT("ObjectClass"));
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bSucceeded &= SpawnClassPin && CallClassPin && CompilerContext.MovePinLinksToIntermediate(*SpawnClassPin, *CallClassPin).CanSafeConnect();
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}
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//connect outer
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{
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auto SpawnOuterPin = GetOuterPin();
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auto CallOuterPin = CallCreateNode->FindPin(TEXT("Outer"));
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bSucceeded &= SpawnOuterPin && CallOuterPin && CompilerContext.MovePinLinksToIntermediate(*SpawnOuterPin, *CallOuterPin).CanSafeConnect();
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}
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UEdGraphPin* CallResultPin = nullptr;
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//connect result
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{
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auto SpawnResultPin = GetResultPin();
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CallResultPin = CallCreateNode->GetReturnValuePin();
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// cast HACK. It should be safe. The only problem is native code generation.
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if (SpawnResultPin && CallResultPin)
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{
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CallResultPin->PinType = SpawnResultPin->PinType;
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}
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bSucceeded &= SpawnResultPin && CallResultPin && CompilerContext.MovePinLinksToIntermediate(*SpawnResultPin, *CallResultPin).CanSafeConnect();
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}
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//assign exposed values and connect then
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{
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auto LastThen = FKismetCompilerUtilities::GenerateAssignmentNodes(CompilerContext, SourceGraph, CallCreateNode, this, CallResultPin, GetClassToSpawn());
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auto SpawnNodeThen = GetThenPin();
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bSucceeded &= SpawnNodeThen && LastThen && CompilerContext.MovePinLinksToIntermediate(*SpawnNodeThen, *LastThen).CanSafeConnect();
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}
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BreakAllNodeLinks();
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if (!bSucceeded)
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{
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CompilerContext.MessageLog.Error(*LOCTEXT("GenericCreateObject_Error", "ICE: GenericCreateObject error @@").ToString(), this);
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}
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}
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void UK2Node_GenericCreateObject::ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const
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{
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Super::ValidateNodeDuringCompilation(MessageLog);
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}
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void UK2Node_GenericCreateObject::EarlyValidation(class FCompilerResultsLog& MessageLog) const
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{
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Super::EarlyValidation(MessageLog);
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auto ClassToSpawn = GetClassToSpawn();
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if (!UGameplayStatics::CanSpawnObjectOfClass(ClassToSpawn))
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{
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MessageLog.Error(*FString::Printf(*LOCTEXT("GenericCreateObject_WrongClass", "Wrong class to spawn '%s' in @@").ToString(), *GetPathNameSafe(ClassToSpawn)), this);
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}
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auto OuterPin = GetOuterPin();
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if (!OuterPin || (!OuterPin->DefaultObject && !OuterPin->LinkedTo.Num()))
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{
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MessageLog.Error(*LOCTEXT("GenericCreateObject_NoOuter", "Outer object is required in @@").ToString(), this);
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}
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}
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bool UK2Node_GenericCreateObject::IsCompatibleWithGraph(const UEdGraph* TargetGraph) const
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{
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return UK2Node::IsCompatibleWithGraph(TargetGraph);
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}
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#undef LOCTEXT_NAMESPACE |