Merge pull request 'Created the necessary changes for Unreal Engine 5.4' (#1) from update-to-5.4 into main

Reviewed-on: BattyBovine/ComboInput#1

ComboInput.uplugin

@@ -6,7 +6,7 @@
 	"Description": "A set of components and classes for capturing Enhanced Input actions for buffering actions and stringing them into complex combos.",
 	"Category": "Input",
 	"CreatedBy": "Jamie Greunbaum",
-	"EngineVersion": "5.3.0",
+	"EngineVersion": "5.4.0",
 	"CanContainContent": true,
 	"IsBetaVersion": true,
 	"IsExperimentalVersion": true,

Source/ComboInput/Private/ComboActionGraph.cpp

@@ -26,24 +26,6 @@ UComboActionGraph::UComboActionGraph()
 #endif
 }
 
-bool UComboActionGraph::CanStartDialogueGraph() const
-{
-	if (this->AllNodes.Num() == 0)
-	{
-		return false;
-	}
-	
-	for (const UComboActionGraphNode *Itr : this->AllNodes)
-	{
-		if (!Itr || !Itr->ValidateNodeRuntime())
-		{
-			return false;
-		}
-	}
-	
-	return true;
-}
-
 void UComboActionGraph::CreateGraph()
 {
 #if WITH_EDITOR
@@ -69,7 +51,7 @@ void UComboActionGraph::ClearGraph()
 	for (UComboActionGraphNode *Node : this->AllNodes)
 	{
 		Node->ParentNodes.Empty();
-		Node->ChildrenNodes.Empty();
+		Node->ChildNodes.Empty();
 		Node->Edges.Empty();
 	}
 
@@ -126,9 +108,10 @@ bool UComboActionGraph::ValidateGraph(TArray<FText> &ValidationErrors, bool Rich
 
 EDataValidationResult UComboActionGraph::IsDataValid(TArray<FText> &ValidationErrors)
 {
-	return this->ValidateGraph(ValidationErrors, false)
-		? EDataValidationResult::Valid
-		: EDataValidationResult::Invalid; 
+	//return this->ValidateGraph(ValidationErrors, false)
+	//	? EDataValidationResult::Valid
+	//	: EDataValidationResult::Invalid;
+	return EDataValidationResult::NotValidated;
 }
 #endif
 

Source/ComboInput/Private/Components/ComboManagerComponent.cpp

@@ -19,14 +19,28 @@ UComboManagerComponent::UComboManagerComponent()
 	this->PrimaryComponentTick.bStartWithTickEnabled = false;
 	this->PrimaryComponentTick.bTickEvenWhenPaused = false;
 	this->PrimaryComponentTick.bCanEverTick = false;
+
+	this->bWantsInitializeComponent = true;
 }
 
-void UComboManagerComponent::BeginPlay()
+void UComboManagerComponent::InitializeComponent()
 {
-	Super::BeginPlay();
+	Super::InitializeComponent();
 
 	checkf(this->ComboGraph, TEXT("No combo graph is set for %s in actor %s"), *UComboManagerComponent::StaticClass()->GetName(), *this->GetOwner()->GetName());
-	this->ActiveNode = this->ComboGraph->StartNode;
+	this->PreviousNode = this->ActiveNode = this->ComboGraph->StartNode;
+}
+
+void UComboManagerComponent::SetComboGraph(const UComboActionGraph *Graph)
+{
+	checkf(Graph, TEXT("Attempting to set a null combo graph."));
+
+	this->ComboGraph = Graph;
+
+	this->FoundInputsCache.Empty();
+	this->FindAllUsedInputs();
+
+	this->ResetCombo();
 }
 
 
@@ -110,11 +124,40 @@ void UComboManagerComponent::DEBUG__UnlockAction(TObjectPtr<const UComboInputAss
 
 void UComboManagerComponent::ReleaseComboAction(const class UComboInputAsset *Input)
 {
-	if (this->LastComboAction)
+	if (this->LastComboAction && this->ActiveNode)
 	{
-		this->BroadcastDelegates(this->LastComboAction, EComboActionTriggerEvent::Released);
-		this->LastComboAction = nullptr;
+		// See if we have a fallback we can release.
+		const TObjectPtr<const UComboAction> *FallbackAction = this->FallbackActions.Find(Input);
+		if (FallbackAction && *FallbackAction == this->LastComboAction)
+		{
+			this->ResetCombo();
+			this->BroadcastDelegates(*FallbackAction, EComboActionTriggerEvent::Released);
+			UE_LOG(LogComboManagerComponent, Verbose, TEXT("Fallback action %s released"), *(*FallbackAction)->ActionName.ToString());
 		}
+		else
+		{
+			// Find a node that matches the release action.
+			const UComboAction *ComboAction = nullptr;
+			for (const UComboActionGraphNode *Node : this->ActiveNode->ChildNodes)
+			{
+				if (const UComboActionGraphNode_ActionNode *ActionNode = StaticCast<const UComboActionGraphNode_ActionNode *>(Node))
+				{
+					if (ActionNode->GetTriggerEvent() == EComboActionTriggerEvent::Released)
+					{
+						ComboAction = ActionNode->GetComboAction();
+						break;
+					}
+				}
+			}
+			if (ComboAction)
+			{
+				this->BroadcastDelegates(ComboAction, EComboActionTriggerEvent::Released);
+				UE_LOG(LogComboManagerComponent, Verbose, TEXT("%s released"), *ComboAction->ActionName.ToString());
+			}
+		}
+	}
+
+	this->LastComboAction = nullptr;
 }
 
 
@@ -135,25 +178,73 @@ void UComboManagerComponent::FinishTransition()
 void UComboManagerComponent::ResetCombo()
 {
 	this->GetWorld()->GetTimerManager().ClearTimer(this->DEBUG__ResetComboTimer);
-	this->PreviousNode = this->ActiveNode;
-	this->ActiveNode = this->ComboGraph->StartNode;
+	this->PreviousNode = this->ActiveNode = this->ComboGraph->StartNode;
+
+	APlayerController *Controller = UGameplayStatics::GetPlayerController(this, 0);
+	if (UInputBufferComponent *InputComponent = Cast<UInputBufferComponent>(Controller->InputComponent))
+	{
+		for (const UComboInputAsset *Unlock : this->FoundInputsCache)
+		{
+			InputComponent->UnlockComboInput(Unlock);
+		}
+	}
 }
 
 
+TSet<const UComboInputAsset *> &UComboManagerComponent::FindAllUsedInputs()
+{
+	if (this->FoundInputsCache.IsEmpty())
+	{
+		// First check the graph for inputs to respond to.
+		this->FindAllUsedInputs_RecurseGraph(this->ComboGraph->StartNode, this->FoundInputsCache);
+
+		// Next check the fallback actions for supplementary inputs to respond to.
+		TArray<TObjectPtr<const UComboInputAsset>> FallbackInputs;
+		this->FallbackActions.GetKeys(FallbackInputs);
+		for (const TObjectPtr<const UComboInputAsset> &FallbackInput : FallbackInputs)
+		{
+			this->FoundInputsCache.Add(FallbackInput);
+		}
+
+		// Finally check the offset action for the final input to respond to.
+		if (this->OffsetMap.ComboInput)
+		{
+			this->FoundInputsCache.Add(this->OffsetMap.ComboInput);
+		}
+	}
+
+	return this->FoundInputsCache;
+}
+void UComboManagerComponent::FindAllUsedInputs_RecurseGraph(const UComboActionGraphNode *CurrentNode, TSet<const UComboInputAsset *> &FoundInputs)
+{
+	for (const UComboActionGraphNode *NextNode : CurrentNode->ChildNodes)
+	{
+		// It should be safe to assume all of our nodes are action nodes. If at some point
+		// this becomes less reliable, this should be changed. But just for the sake of
+		// saving a bit of performance on start-up, we're doing this right now.
+		checkf(NextNode->GetClass() == UComboActionGraphNode_ActionNode::StaticClass(), TEXT("This graph contains non-action nodes. The cast in this function will fail."));
+		FoundInputs.Add(StaticCast<const UComboActionGraphNode_ActionNode *>(NextNode)->GetComboInput());
+		this->FindAllUsedInputs_RecurseGraph(NextNode, FoundInputs);
+	}
+}
+
 const UComboActionGraphNode *UComboManagerComponent::FindActiveNodeData(const UComboActionGraphNode *CurrentNode, const UComboInputAsset *Input, const EComboActionTriggerEvent TriggerEvent, const UComboAction *&ComboAction)
 {
+	checkf(CurrentNode, TEXT("Attempting to find an active node from a null node."));
+
 	// Find a node that matches both the combo input and the trigger action.
 	const UComboActionGraphNode *NextNode = nullptr;
-	for (const UComboActionGraphNode *GraphNode : CurrentNode->ChildrenNodes)
+	for (const UComboActionGraphNode *GraphNode : CurrentNode->ChildNodes)
 	{
 		if (const UComboActionGraphNode_ActionNode *ActionNode = Cast<UComboActionGraphNode_ActionNode>(GraphNode))
 		{
 			if (ActionNode->GetComboInput() == Input && ActionNode->GetTriggerEvent() == EComboActionTriggerEvent::Activated)
 			{
-				// If we found the right node, only acknowledge it if it's enabled. Otherwise just skip it.
-				if (ActionNode->bEnabled)
+				// If we found the right node, only acknowledge it if it's enabled.
+				const UComboAction *CheckAction = ActionNode->GetComboAction();
+				if (ActionNode->bEnabled || this->ComboGraph->UnlockedActions.Contains(CheckAction))
 				{
-					ComboAction = ActionNode->GetComboAction();
+					ComboAction = CheckAction;
 					NextNode = ActionNode;
 				}
 				break;

Source/ComboInput/Private/Components/InputBufferComponent.cpp

@@ -12,9 +12,14 @@
 DEFINE_LOG_CATEGORY(LogInputBufferComponent);
 
 
-void UInputBufferComponent::BeginPlay()
+UInputBufferComponent::UInputBufferComponent()
 {
-	Super::BeginPlay();
+	this->bWantsInitializeComponent = true;
+}
+
+void UInputBufferComponent::InitializeComponent()
+{
+	Super::InitializeComponent();
 
 	if (APlayerController *PlayerController = UGameplayStatics::GetPlayerController(this, 0))
 	{
@@ -23,14 +28,15 @@ void UInputBufferComponent::BeginPlay()
 			// Get the player character and try to connect to its combo manager.
 			this->OnNewComboInput.BindUObject(ComboManager, &UComboManagerComponent::HandleComboInput);
 
+			const TSet<const UComboInputAsset *> &ComboInputs = ComboManager->FindAllUsedInputs();
+
 			// Get all unique EnhancedInput actions bound to combo input actions.
-			const UInputBufferGlobalSettings *Settings = GetDefault<UInputBufferGlobalSettings>();
 			TSet<const UInputAction *> InputActionsToBind;
-			for (TSoftObjectPtr<const UComboInputAsset> ComboInput : Settings->ComboInputs)
+			for (const UComboInputAsset *ComboInput : ComboInputs)
 			{
-				if (ComboInput.IsValid())
+				if (ComboInput)
 				{
-					this->ComboInputList.Emplace(ComboInput.Get());
+					this->ComboInputList.Emplace(ComboInput);
 					for (const UInputAction *InputAction : ComboInput->ActionGroup)
 					{
 						InputActionsToBind.Add(InputAction);
@@ -38,7 +44,7 @@ void UInputBufferComponent::BeginPlay()
 				}
 				else
 				{
-					UE_LOG(LogInputBufferComponent, Verbose, TEXT("Invalid combo action found in Combo Actions list in %s"), *Settings->GetClass()->GetName());
+					UE_LOG(LogInputBufferComponent, Verbose, TEXT("Invalid combo input found"));
 				}
 			}
 			for (const UInputAction *InputAction : InputActionsToBind)
@@ -53,20 +59,47 @@ void UInputBufferComponent::BeginPlay()
 
 void UInputBufferComponent::AddActionToBuffer(const FInputActionValue &Value, const class UInputAction *Action)
 {
-	this->MostRecentActions.Add(Action);
+	this->MultiPressActions.Add(Action);
 	this->ExpiringActions.Remove(Action);
 
 	// Find any combo input that matches this action, plus buffered actions.
+	bool bComboInputFound = false;
 	for (TObjectPtr<const UComboInputAsset> ComboInput : this->ComboInputList)
 	{
-		if (ComboInput->MatchesInputActions(this->MostRecentActions))
+		if (ComboInput->MatchesInputActions(this->MultiPressActions))
 		{
 			this->ActivateComboInput(ComboInput.Get());
-
+			bComboInputFound = true;
 			break;
 		}
 	}
 
+	// If we haven't found any matching inputs, check if anything was somehow unhandled.
+	// This can happen if, for example, a jump input can combine with an attack input to
+	// create a combo action, but jump by itself has no action on its own.
+	if (!bComboInputFound)
+	{
+		if (!this->UnhandledActions.IsEmpty())
+		{
+			TSet<const UInputAction*> HandledActions = this->MultiPressActions;
+			for (const UInputAction *UnhandledAction : this->UnhandledActions)
+			{
+				HandledActions.Remove(UnhandledAction);
+			}
+
+			for (TObjectPtr<const UComboInputAsset> ComboInput : this->ComboInputList)
+			{
+				if (ComboInput->MatchesInputActions(HandledActions))
+				{
+					this->ActivateComboInput(ComboInput);
+					bComboInputFound = true;
+					break;
+				}
+			}
+		}
+		this->UnhandledActions.Add(Action);
+	}
+
 	const UInputBufferGlobalSettings *Settings = GetDefault<UInputBufferGlobalSettings>();
 	this->GetWorld()->GetTimerManager().SetTimer(this->MultiPressTimerHandle, this, &UInputBufferComponent::ClearMultiPresses, Settings->MultiPressTimerLength);
 }
@@ -74,13 +107,14 @@ void UInputBufferComponent::ClearMultiPresses()
 {
 #if WITH_EDITOR
 	TArray<FString> ActionNames;
-	for (const UInputAction *Action : this->MostRecentActions)
+	for (const UInputAction *Action : this->MultiPressActions)
 	{
 		ActionNames.Add(Action->GetName());
 	}
 	UE_LOG(LogInputBufferComponent, Verbose, TEXT("Multi-press buffer cleared (%s)"), *FString::Join(ActionNames, TEXT(" | ")));
 #endif
-	this->MostRecentActions.Empty();
+	this->MultiPressActions.Empty();
+	this->UnhandledActions.Empty();
 }
 
 void UInputBufferComponent::ActivateComboInput(const UComboInputAsset *ComboInput)

Source/ComboInput/Private/Nodes/ComboActionGraphNode.cpp

@@ -15,11 +15,12 @@ UComboActionGraphNode::UComboActionGraphNode()
 {
 	this->NodeGUID = FGuid::NewGuid();
 
+	this->bEnabled = true;
+
 #if WITH_EDITORONLY_DATA
 	this->CompatibleGraphType = UComboActionGraph::StaticClass();
 
 	this->BackgroundColor = FLinearColor::Black;
-	this->bEnabled = true;
 
 	this->bAllowInputNodes = true;
 	this->bAllowOutputNodes = true;
@@ -37,11 +38,11 @@ UComboActionGraphNode::UComboActionGraphNode()
 
 void UComboActionGraphNode::SetNewWorld(UWorld *NewWorld)
 {
-	if (!NewWorld) return;
-	if (NewWorld == this->OwningWorld) return;
-
+	if (NewWorld)
+	{
 		this->OwningWorld = NewWorld;
 	}
+}
 
 void UComboActionGraphNode::InitializeNode_Implementation(UWorld *InWorld)
 {
@@ -103,7 +104,7 @@ bool UComboActionGraphNode::CanCreateConnection(UComboActionGraphNode *Other, en
 		ErrorMessage = FText::FromString("Invalid Other Node!");
 	}
 
-	if (Other->GetMaxChildNodes() > -1 && Other->ChildrenNodes.Num() >= Other->GetMaxChildNodes())
+	if (Other->GetMaxChildNodes() > -1 && Other->ChildNodes.Num() >= Other->GetMaxChildNodes())
 	{
 		const FString TextReturn =
 		FString(Other->GetNodeTitle().ToString()).
@@ -142,7 +143,7 @@ bool UComboActionGraphNode::ValidateNode(TArray<FText> &ValidationsMessages, con
 {
 	bool bResult = true;
 
-	if (this->ParentNodes.Num() == 0 && this->ChildrenNodes.Num() == 0)
+	if (this->ParentNodes.Num() == 0 && this->ChildNodes.Num() == 0)
 	{
 		bResult = false;
 		
@@ -186,7 +187,7 @@ void UComboActionGraphNode::OnPasted()
 	this->NodeGUID = FGuid::NewGuid();
 
 	this->ParentNodes.Empty();
-	this->ChildrenNodes.Empty();
+	this->ChildNodes.Empty();
 	this->Edges.Empty();
 }
 

Source/ComboInput/Private/Nodes/ComboActionGraphNode_ActionNode.cpp

@@ -19,7 +19,7 @@ UComboActionGraphNode_ActionNode::UComboActionGraphNode_ActionNode()
 	this->AllowedInputClasses.Add(UComboActionGraphNode_StartNode::StaticClass());
 	this->AllowedInputClasses.Add(UComboActionGraphNode_ActionNode::StaticClass());
 	
-	this->MaxChildrenNodes = -1;
+	this->MaxChildNodes = -1;
 }
 
 void UComboActionGraphNode_ActionNode::PreProcessNode(const TScriptInterface<IComboActionGraphManagerInterface> &Manager)

Source/ComboInput/Private/Nodes/ComboActionGraphNode_ActionNodeBase.cpp

@@ -45,7 +45,7 @@ bool UComboActionGraphNode_ActionNodeBase::ValidateNodeRuntime_Implementation()
 		return false;
 	}
 
-	if (this->MaxChildrenNodes > -1 && this->ChildrenNodes.Num() > this->MaxChildrenNodes)
+	if (this->MaxChildNodes > -1 && this->ChildNodes.Num() > this->MaxChildNodes)
 	{
 		return false;
 	}
@@ -113,7 +113,7 @@ bool UComboActionGraphNode_ActionNodeBase::ValidateNode(TArray<FText> &Validatio
 		ValidationsMessages.Add(FText::FromString(RichFormat ? RichTextReturn : TextReturn));
 	}
 
-	if (this->MaxChildrenNodes > -1 && this->ChildrenNodes.Num() > this->MaxChildrenNodes)
+	if (this->MaxChildNodes > -1 && this->ChildNodes.Num() > this->MaxChildNodes)
 	{
 		const FString RichTextReturn = FString("* ")
 			.Append("<RichTextBlock.Bold>")
@@ -121,12 +121,12 @@ bool UComboActionGraphNode_ActionNodeBase::ValidateNode(TArray<FText> &Validatio
 			.Append("</>")
 			.Append(": Has more than ")
 			.Append("<RichTextBlock.Bold>")
-			.Append(FString::FromInt(this->MaxChildrenNodes))
+			.Append(FString::FromInt(this->MaxChildNodes))
 			.Append("</>")
 			.Append(" child nodes!");
 
 		const FString TextReturn = FString(this->NodeTitle.ToString())
-			.Append(": Has more than ").Append(FString::FromInt(this->MaxChildrenNodes)).Append(" child nodes!");
+			.Append(": Has more than ").Append(FString::FromInt(this->MaxChildNodes)).Append(" child nodes!");
 	
 		ValidationsMessages.Add(FText::FromString(RichFormat ? RichTextReturn : TextReturn));
 	}
@@ -151,7 +151,8 @@ void UComboActionGraphNode_ActionNodeBase::PostEditChangeProperty(FPropertyChang
 	}
 }
 
-FLinearColor UComboActionGraphNode_ActionNodeBase::GetBackgroundColor() const
+#if WITH_EDITOR
+FLinearColor UComboActionGraphNode_ActionNodeBase::GetBackgroundColour() const
 {
 	if (this->ComboAction && this->ComboAction->NodeColor != FLinearColor())
 	{
@@ -161,8 +162,9 @@ FLinearColor UComboActionGraphNode_ActionNodeBase::GetBackgroundColor() const
 	{
 		return this->ComboInput->NodeColor;
 	}
-	return Super::GetBackgroundColor();
+	return Super::GetBackgroundColour();
 }
+#endif
 
 FText UComboActionGraphNode_ActionNodeBase::GetDescription_Implementation() const
 {

Source/ComboInput/Private/Nodes/ComboActionGraphNode_StartNode.cpp

@@ -23,7 +23,7 @@ UComboActionGraphNode_StartNode::UComboActionGraphNode_StartNode()
 	this->NodeTooltipText = LOCTEXT("ComboActionGraphNode_CompleteTooltip", "* This Node will be added to the graph automatically.\n* This Node cannot be created manually.\n* This Node cannot be deleted.\n* Does not implement any logic.");
 #endif
 
-	this->MaxChildrenNodes = -1;
+	this->MaxChildNodes = -1;
 }
 
 #if WITH_EDITOR
@@ -37,7 +37,7 @@ bool UComboActionGraphNode_StartNode::ValidateNode(TArray<FText>& ValidationsMes
 {
 	bool bResult = Super::ValidateNode(ValidationsMessages, RichFormat);
 
-	if (ChildrenNodes.Num() == 0)
+	if (this->ChildNodes.Num() == 0)
 	{
 		bResult = false;
 

Source/ComboInput/Public/ComboActionGraph.h

@@ -43,17 +43,17 @@ public:
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action")
 		class UComboActionGraphNode *StartNode = nullptr;
 	/**
-	 * The class of the dialogue node represented by this instance.
+	 * The class of the action node represented by this instance.
 	 */
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action")
 		TSubclassOf<UComboActionGraphNode> NodeType;
 	/**
-	 * The class of the dialogue edge represented by this instance.
+	 * The class of the action edge represented by this instance.
 	 */
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action")
 		TSubclassOf<UComboActionGraphEdge> EdgeType;
 	/**
-	 * An array of root nodes in the dialogue graph. These are the nodes that do not have any incoming connections.
+	 * An array of root nodes in the action graph. These are the nodes that do not have any incoming connections.
 	 */
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action")
 		TArray<UComboActionGraphNode*> RootNodes;
@@ -62,6 +62,13 @@ public:
 	 */
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action")
 		TArray<UComboActionGraphNode*> AllNodes;
+
+	/**
+	 * Set containing actions to be unlocked if their associated nodes are currently locked.
+	 */
+	UPROPERTY(BlueprintReadWrite, Category="Combo Input|Action")
+		TSet<const class UComboAction*> UnlockedActions;
+
 	// Flag indicating whether an edge is enabled
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action")
 		bool bEdgeEnabled;
@@ -88,18 +95,12 @@ public:
 	UFUNCTION(BlueprintCallable, Category="Combo Input|Action")
 		TArray<UComboActionGraphNode*> GetRootNodes() const { return this->RootNodes; }
 	/**
-	 * Returns the root nodes of the dialogue graph.
+	 * Returns the first node in the graph.
 	 *
-	 * @return An array of all root nodes.
+	 * @return The start node of this graph.
 	 */
 	UFUNCTION(BlueprintCallable, Category="Combo Input|Action")
 		UComboActionGraphNode *GetStartNode() const { return this->StartNode; }
-	/**
-	 * Determines whether the dialogue graph can be started.
-	 * 
-	 * @return true if the graph can be started, false otherwise.
-	 */
-	bool CanStartDialogueGraph() const;
 	
 public:
 	void CreateGraph();
@@ -115,7 +116,7 @@ public:
 
 public:
 	UPROPERTY()
-		class UEdGraph *EdGraph;
+		TObjectPtr<class UEdGraph> EdGraph;
 
 	UPROPERTY(BlueprintReadOnly, Category="Combo Input|Action|Editor")
 		bool bCanRenameNode;

Source/ComboInput/Public/Components/ComboManagerComponent.h

@@ -42,8 +42,10 @@ class COMBOINPUT_API UComboManagerComponent : public UActorComponent
 
 public:
 	UComboManagerComponent();
+	virtual void InitializeComponent() override;
 
-	virtual void BeginPlay() override;
+	UFUNCTION(BlueprintCallable)
+		void SetComboGraph(const class UComboActionGraph *Graph);
 
 	UFUNCTION(BlueprintCallable)
 		void HandleComboInput(const class UComboInputAsset *Input, const EComboActionTriggerEvent &TriggerEvent);
@@ -56,6 +58,9 @@ public:
 		this->ComboActionEventBindings.Emplace(Key.Key, MoveTemp(Delegate));
 	}
 
+	// Recursively search the graph for all inputs used by the graph.
+	TSet<const UComboInputAsset *> &FindAllUsedInputs();
+
 protected:
 	UPROPERTY(BlueprintReadOnly, EditDefaultsOnly)
 		TObjectPtr<const class UComboActionGraph> ComboGraph;
@@ -87,6 +92,7 @@ private:
 	void ResetCombo();
 
 	const UComboActionGraphNode *FindActiveNodeData(const UComboActionGraphNode *CurrentNode, const UComboInputAsset *Input, const EComboActionTriggerEvent TriggerEvent, const UComboAction *&ComboAction);
+	void FindAllUsedInputs_RecurseGraph(const UComboActionGraphNode *CurrentNode, TSet<const UComboInputAsset *> &FoundInputs);
 
 	void BroadcastDelegates(const class UComboAction *ComboAction, const EComboActionTriggerEvent &TriggerEvent);
 
@@ -101,6 +107,9 @@ private:
 
 	TObjectPtr<class UInputBufferComponent> AttachedInputBuffer;
 	
+	// Cache of combo inputs found in the current graph.
+	TSet<const UComboInputAsset *> FoundInputsCache;
+
 	FTimerHandle FinishTransitionTimer;
 	FTimerHandle DEBUG__ResetComboTimer;
 

Source/ComboInput/Public/Components/InputBufferComponent.h

@@ -21,7 +21,8 @@ class COMBOINPUT_API UInputBufferComponent : public UEnhancedInputComponent
 	GENERATED_BODY()
 
 public:
-	virtual void BeginPlay() override;
+	UInputBufferComponent();
+	virtual void InitializeComponent() override;
 
 	UFUNCTION(BlueprintCallable)
 		void LockComboInput(const class UComboInputAsset *Input);
@@ -52,7 +53,8 @@ private:
 	// A local backup of the global setting containing the list of combo inputs to respond to.
 	TSet<TObjectPtr<const UComboInputAsset>> ComboInputList;
 
-	TSet<const class UInputAction*> MostRecentActions;
+	TSet<const class UInputAction*> MultiPressActions;
+	TSet<const class UInputAction*> UnhandledActions;
 	TSet<const class UInputAction*> ExpiringActions;
 
 	FNewComboInput OnNewComboInput;

Source/ComboInput/Public/GlobalSettings/InputBufferGlobalSettings.h

@@ -16,12 +16,6 @@ class COMBOINPUT_API UInputBufferGlobalSettings : public UDeveloperSettingsBacke
 	GENERATED_BODY()
 
 public:
-	// List of possible combo inputs that can be taken. A combo input is selected from this list
-	// either if an action is made while the current combo is inactive, or when the previous
-	// action expires.
-	UPROPERTY(Config, BlueprintReadOnly, EditDefaultsOnly)
-		TSet<TSoftObjectPtr<const class UComboInputAsset>> ComboInputs;
-
 	// Length of time after releasing an input to keep the associated combo action buffered before clearing it.
 	UPROPERTY(Config, BlueprintReadOnly, EditDefaultsOnly, meta=(UIMin="0.0", UIMax="0.5", ClampMin="0.0", ClampMax="0.5"))
 		float InputReleaseExpirationTimerLength = 0.15f;

Source/ComboInput/Public/Nodes/ComboActionGraphNode.h

@@ -38,7 +38,7 @@ public:
 	 * The array of child nodes of the current dialogue node.
 	 */
 	UPROPERTY(BlueprintReadOnly, Category = "Private")
-		TArray<class UComboActionGraphNode*> ChildrenNodes;
+		TArray<class UComboActionGraphNode *> ChildNodes;
 	/**
 	 * Map of edges connecting this Node in the Combo Action graph.
 	 *❗ The key of the map is the source node, and the value is the edge connecting it to its target node.
@@ -94,7 +94,7 @@ public:
 	 * Can be used to enforce a maximum number of connections for certain types of nodes.
 	 */
 	UPROPERTY(BlueprintReadOnly, EditDefaultsOnly, Category="Combo Input|Action")
-		int32 MaxChildrenNodes = -1;
+		int32 MaxChildNodes = -1;
 
 	/**
 	 * The array of allowed input classes for this Dialogue Node.
@@ -126,10 +126,10 @@ public:
 	 * Returns how many Children Nodes this Node allows to have.
 	 *❔ -1 means no limits.
 	 *
-	 * @return MaxChildrenNodes
+	 * @return Max child nodes
 	 */
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="Combo Input|Action")
-	int32 GetMaxChildNodes() const { return MaxChildrenNodes; }
+		int32 GetMaxChildNodes() const { return this->MaxChildNodes; }
 
 
 	/**
@@ -164,23 +164,6 @@ public:
 		class UComboActionGraph *GetGraph() const { return this->Graph; }
 
 
-	/**
-	 * Gets children Nodes this one has,
-	 *❗ Might be empty
-	 *
-	 * @return Amount of children Nodes
-	 */
-	UFUNCTION(BlueprintCallable, BlueprintPure, Category="Combo Input|Action")
-		FORCEINLINE TArray<UComboActionGraphNode*> GetChildrenNodes() const { return ChildrenNodes; }
-	/**
-	 * Gets how many parent Nodes point to this one
-	 *❗ Might be empty
-	 *
-	 * @return Amount of how parent Nodes
-	 */
-	UFUNCTION(BlueprintCallable, BlueprintPure, Category="Combo Input|Action")
-		FORCEINLINE TArray<UComboActionGraphNode*> GetParentNodes() const { return ParentNodes; }
-
 	/**
 	 * Serves purpose of validating Node before Dialogue gets Started.
 	 * Any broken Node results in non-starting Dialogue to avoid crashes.
@@ -325,11 +308,11 @@ public:
 		virtual FString GetNodeDocumentationLink_Implementation() const;
 
 	/**
-	 * Returns the Background Colour for this graph node.
+	 * Returns the background colour for this graph node.
 	 *
-	 * @return The Background Colour for this node.
+	 * @return The background colour for this node.
 	 */
-	virtual FLinearColor GetBackgroundColor() const { return this->BackgroundColor; }
+	virtual FLinearColor GetBackgroundColour() const { return this->BackgroundColor; }
 	FText GetInternalName() const { return this->NodeTypeName; }
 
 	// Allows setting up the Node Title

Source/ComboInput/Public/Nodes/ComboActionGraphNode_ActionNodeBase.h

@@ -39,9 +39,9 @@ public:
 
 	virtual bool ValidateNodeRuntime_Implementation() const override;
 
-	virtual FLinearColor GetBackgroundColor() const override;
-
-public:
+#if WITH_EDITOR
+	virtual FLinearColor GetBackgroundColour() const override;
+#endif
 
 #if WITH_EDITORONLY_DATA
 

Source/ComboInputEditor/Private/ComboActionGraphSchema.h

@@ -95,7 +95,7 @@ public:
 	virtual UEdGraphNode *PerformAction(class UEdGraph *ParentGraph, UEdGraphPin *FromPin, const FVector2D Location, bool bSelectNewNode = true) override;
 	virtual void AddReferencedObjects(FReferenceCollector &Collector) override;
 
-	class UEdComboActionGraphNode *NodeTemplate;
+	TObjectPtr<class UEdComboActionGraphNode> NodeTemplate;
 };
 
 USTRUCT()
@@ -114,7 +114,7 @@ public:
 	virtual UEdGraphNode *PerformAction(class UEdGraph *ParentGraph, UEdGraphPin *FromPin, const FVector2D Location, bool bSelectNewNode = true) override;
 	virtual void AddReferencedObjects(FReferenceCollector &Collector) override;
 
-	class UEdComboActionGraphEdge *NodeTemplate;
+	TObjectPtr<class UEdComboActionGraphEdge> NodeTemplate;
 };
 
 

Source/ComboInputEditor/Private/ComboInputEditor.cpp

@@ -234,7 +234,6 @@ FComboInputSlateStyle::FComboInputSlateStyle() : FSlateStyleSet("ComboInputEdito
 		this->Set("MDSStyleSet.Node.Icon.small", new IMAGE_BRUSH(TEXT("DialogueNodeIcon"), Icon12));
 
 		this->Set("MDSStyleSet.Icon.Close", new IMAGE_BRUSH(TEXT("CloseIcon"), Icon12));
-		this->Set("MDSStyleSet.Icon.SupportDiscord", new IMAGE_BRUSH(TEXT("DiscordIcon"), Icon12));
 		this->Set("MDSStyleSet.Icon.HeartIcon", new IMAGE_BRUSH(TEXT("HeartIcon"), Icon12));
 		this->Set("MDSStyleSet.Icon.UBIcon", new IMAGE_BRUSH(TEXT("UnrealBucketIcon"), Icon12));
 		this->Set("MDSStyleSet.Icon.MoneyIcon", new IMAGE_BRUSH(TEXT("MoneyIcon"), Icon12));

Source/ComboInputEditor/Private/Ed/AssetEditor_ComboActionGraph.cpp

@@ -2,28 +2,26 @@
 
 #include "AssetEditor_ComboActionGraph.h"
 
-#include "GraphEditorActions.h"
-#include "Framework/Commands/GenericCommands.h"
-#include "Kismet2/BlueprintEditorUtils.h"
-#include "HAL/PlatformApplicationMisc.h"
-#include "EdGraphUtilities.h"
-
-#include "ComboInputEditor.h"
 #include "ComboActionGraph.h"
-#include "Nodes/ComboActionGraphNode.h"
+#include "ComboActionGraphSchema.h"
+#include "ComboInputEditor.h"
+#include "EdGraphUtilities.h"
+#include "GraphEditorActions.h"
+
 #include "Ed/EdComboActionGraph.h"
 #include "Ed/EdComboActionGraphEdge.h"
 #include "Ed/EdComboActionGraphNode.h"
 #include "Ed/FAssetEditorToolbarComboActionGraph.h"
 #include "Ed/FComboActionGraphEditorCommands.h"
-#include "ComboActionGraphSchema.h"
-//#include "Helpers/ComboActionGraphHelpers.h"
-//#include "Helpers/ComboActionSystemEditorBFC.h"
+#include "Framework/Commands/GenericCommands.h"
+#include "HAL/PlatformApplicationMisc.h"
+#include "Kismet2/BlueprintEditorUtils.h"
 #include "Layout/AssetEditorTabs.h"
 #include "Layout/ComboActionGraphLayoutStrategy.h"
 #include "Layout/ComboActionForceDirectedSolveLayoutStrategy.h"
 #include "Layout/ComboActionTreeSolveLayoutStrategy.h"
-//#include "Popups/MDSPopup_GraphValidation.h"
+#include "Nodes/ComboActionGraphNode.h"
+#include "Popups/ComboInputPopup_GraphValidation.h"
 #include "Search/ComboActionSearchUtils.h"
 #include "Search/SComboActionSearch.h"
 #include "Settings/ComboActionGraphEditorSettings.h"
@@ -742,35 +740,41 @@ bool FAssetEditor_ComboActionGraph::CanPasteNodes() const
 
 void FAssetEditor_ComboActionGraph::AutoArrange()
 {
-	UEdComboActionGraph *EdGraph = Cast<UEdComboActionGraph>(this->EditingGraph->EdGraph);
-	check(EdGraph != nullptr);
+	// For now, auto-arrange is broken. Just in case it can be activated by accident,
+	// show a popup saying as much if an auto-arrange is attempted.
+	TArray<FText> ValidationMessages;
+	ValidationMessages.Add(LOCTEXT("AssetEditor_ComboActionGraph_AutoArrangeDisabled", "Auto-arrange is currently broken."));
+	ComboInputPopup_GraphValidation::Open(ValidationMessages);
 
-	const FScopedTransaction Transaction(LOCTEXT("ComboActionGraphEditorAutoArrange", "Combo Action Graph Editor: Auto Arrange all Nodes"));
+	//UEdComboActionGraph *EdGraph = Cast<UEdComboActionGraph>(this->EditingGraph->EdGraph);
+	//check(EdGraph != nullptr);
 
-	EdGraph->Modify(true);
+	//const FScopedTransaction Transaction(LOCTEXT("ComboActionGraphEditorAutoArrange", "Combo Action Graph Editor: Auto Arrange all Nodes"));
 
-	UComboActionGraphLayoutStrategy *LayoutStrategy = nullptr;
-	switch (this->ComboActionGraphEditorSettings->GetAutoLayoutStrategy())
-	{
-		case EComboActionAutoLayoutStrategyType::Tree:
-			LayoutStrategy = NewObject<UComboActionGraphLayoutStrategy>(EdGraph, UComboActionTreeSolveLayoutStrategy::StaticClass());
-			break;
-		case EComboActionAutoLayoutStrategyType::ForceDirected:
-			LayoutStrategy = NewObject<UComboActionGraphLayoutStrategy>(EdGraph, UComboActionForceDirectedSolveLayoutStrategy::StaticClass());
-			break;
-		default:
-			break;
-	}
+	//EdGraph->Modify(true);
 
-	if (LayoutStrategy != nullptr)
-	{
-		LayoutStrategy->Layout(EdGraph);
-		LayoutStrategy->ConditionalBeginDestroy();
-	}
-	else
-	{
-		UE_LOG(LogAssetEditorComboActionGraph, Error, TEXT("[AutoArrange] LayoutStrategy is null."));
-	}
+	//UComboActionGraphLayoutStrategy *LayoutStrategy = nullptr;
+	//switch (this->ComboActionGraphEditorSettings->GetAutoLayoutStrategy())
+	//{
+	//	case EComboActionAutoLayoutStrategyType::Tree:
+	//		LayoutStrategy = NewObject<UComboActionGraphLayoutStrategy>(EdGraph, UComboActionTreeSolveLayoutStrategy::StaticClass());
+	//		break;
+	//	case EComboActionAutoLayoutStrategyType::ForceDirected:
+	//		LayoutStrategy = NewObject<UComboActionGraphLayoutStrategy>(EdGraph, UComboActionForceDirectedSolveLayoutStrategy::StaticClass());
+	//		break;
+	//	default:
+	//		break;
+	//}
+
+	//if (LayoutStrategy != nullptr)
+	//{
+	//	LayoutStrategy->Layout(EdGraph);
+	//	LayoutStrategy->ConditionalBeginDestroy();
+	//}
+	//else
+	//{
+	//	UE_LOG(LogAssetEditorComboActionGraph, Error, TEXT("[AutoArrange] LayoutStrategy is null."));
+	//}
 }
 
 bool FAssetEditor_ComboActionGraph::CanAutoArrange() const
@@ -798,12 +802,12 @@ void FAssetEditor_ComboActionGraph::ValidateGraph()
 	TArray<FText> ValidationMessages;
 	if (ComboActionGraph->ValidateGraph(ValidationMessages, true) == false)
 	{
-		//ValidationWindow = MDSPopup_GraphValidation::Open(ValidationMessages);
+		this->ValidationWindow = ComboInputPopup_GraphValidation::Open(ValidationMessages);
 	}
 	else
 	{
 		ValidationMessages.Empty();
-		//ValidationWindow = MDSPopup_GraphValidation::Open(ValidationMessages);
+		this->ValidationWindow = ComboInputPopup_GraphValidation::Open(ValidationMessages);
 	}
 }
 

Source/ComboInputEditor/Private/Ed/AssetEditor_ComboActionGraph.h

@@ -146,7 +146,7 @@ private:
 
 	class UComboActionGraphEditorSettings *ComboActionGraphEditorSettings;
 
-	class UComboActionGraph *EditingGraph;
+	TObjectPtr<class UComboActionGraph> EditingGraph;
 
 	//Toolbar
 	TSharedPtr<FAssetEditorToolbarComboActionGraph> ToolbarBuilder;

Source/ComboInputEditor/Private/Ed/EdComboActionGraph.cpp

@@ -63,7 +63,7 @@ void UEdComboActionGraph::RebuildComboActionGraph()
 
 					if (ChildNode != nullptr)
 					{
-						ComboActionGraphNode->ChildrenNodes.Add(ChildNode);
+						ComboActionGraphNode->ChildNodes.Add(ChildNode);
 
 						ChildNode->ParentNodes.Add(ComboActionGraphNode);
 					}
@@ -168,7 +168,7 @@ void UEdComboActionGraph::Clear()
 		{
 			UComboActionGraphNode *MounteaDialogueGraphNode = EdNode->ComboActionGraphNode;
 			MounteaDialogueGraphNode->ParentNodes.Reset();
-			MounteaDialogueGraphNode->ChildrenNodes.Reset();
+			MounteaDialogueGraphNode->ChildNodes.Reset();
 			MounteaDialogueGraphNode->Edges.Reset();
 		}
 	}
@@ -194,12 +194,12 @@ void UEdComboActionGraph::SortNodes(UComboActionGraphNode *RootNode)
 				return EdNode_LNode->NodePosX < EdNode_RNode->NodePosX;
 			};
 
-			Node->ChildrenNodes.Sort(Comp);
+			Node->ChildNodes.Sort(Comp);
 			Node->ParentNodes.Sort(Comp);
 
-			for (int j = 0; j < Node->ChildrenNodes.Num(); ++j)
+			for (int j = 0; j < Node->ChildNodes.Num(); ++j)
 			{
-				NextLevelNodes.Add(Node->ChildrenNodes[j]);
+				NextLevelNodes.Add(Node->ChildNodes[j]);
 			}
 		}
 

Source/ComboInputEditor/Private/Ed/EdComboActionGraphNode.cpp

@@ -82,11 +82,6 @@ void UEdComboActionGraphNode::AutowireNewNode(UEdGraphPin* FromPin)
 	}
 }
 
-FLinearColor UEdComboActionGraphNode::GetBackgroundColor() const
-{
-	return this->ComboActionGraphNode ? this->ComboActionGraphNode->GetBackgroundColor() : FLinearColor::Black;
-}
-
 UEdGraphPin* UEdComboActionGraphNode::GetInputPin() const
 {
 	return Pins[0];
@@ -151,12 +146,19 @@ FText UEdComboActionGraphNode::GetTooltipText() const
 	return NSLOCTEXT("UEdComboActionGraphNode", "DefaultToolTip", "Combo Action Node");
 }
 
+#if WITH_EDITOR
+FLinearColor UEdComboActionGraphNode::GetBackgroundColor() const
+{
+	return this->ComboActionGraphNode ? this->ComboActionGraphNode->GetBackgroundColour() : FLinearColor::Black;
+}
+
 FSlateIcon UEdComboActionGraphNode::GetIconAndTint(FLinearColor& OutColor) const
 {
 	static const FSlateIcon Icon = FSlateIcon(FComboInputSlateStyle::GetAppStyleSetName(), "MDSStyleSet.Node.Icon.small");
-	OutColor = this->ComboActionGraphNode->GetBackgroundColor();
+	OutColor = this->ComboActionGraphNode->GetBackgroundColour();
 	return Icon;
 }
+#endif
 
 void UEdComboActionGraphNode::PostEditUndo()
 {

Source/ComboInputEditor/Private/Ed/EdComboActionGraphNode.h

@@ -31,7 +31,6 @@ public:
 	virtual void PrepareForCopying() override;
 	virtual void AutowireNewNode(UEdGraphPin *FromPin) override;
 
-	virtual FLinearColor GetBackgroundColor() const;
 	virtual UEdGraphPin *GetInputPin() const;
 	virtual UEdGraphPin *GetOutputPin() const;
 
@@ -41,11 +40,13 @@ public:
 	virtual bool CanUserPasteNodes() const;
 
 	virtual FText GetTooltipText() const override;
-	virtual FSlateIcon GetIconAndTint(FLinearColor &OutColor) const override;
 
 #if WITH_EDITOR
 	virtual void PostEditUndo() override;
 	virtual void PostEditChangeProperty(FPropertyChangedEvent &PropertyChangedEvent) override;
+
+	virtual FLinearColor GetBackgroundColor() const;
+	virtual FSlateIcon GetIconAndTint(FLinearColor &OutColor) const override;
 #endif
 
 	UPROPERTY(VisibleAnywhere, Instanced, Category="Combo Action Graph")

Source/ComboInputEditor/Private/Layout/ComboActionForceDirectedSolveLayoutStrategy.cpp

@@ -113,11 +113,11 @@ FBox2D UComboActionForceDirectedSolveLayoutStrategy::LayoutOneTree(UComboActionG
 
 				UEdComboActionGraphNode *EdNode_ParentNode = this->EdGraph->NodeMap[Node];
 
-				for (int32 j = 0; j < Node->ChildrenNodes.Num(); j++)
+				for (int32 j = 0; j < Node->ChildNodes.Num(); j++)
 				{
-					NextLevelNodes.Add(Node->ChildrenNodes[j]);
+					NextLevelNodes.Add(Node->ChildNodes[j]);
 
-					UEdComboActionGraphNode *EdNode_ChildNode = this->EdGraph->NodeMap[Node->ChildrenNodes[j]];
+					UEdComboActionGraphNode *EdNode_ChildNode = this->EdGraph->NodeMap[Node->ChildNodes[j]];
 
 					Diff.X = EdNode_ChildNode->NodePosX - EdNode_ParentNode->NodePosY;
 					Diff.Y = EdNode_ChildNode->NodePosY - EdNode_ParentNode->NodePosY;

Source/ComboInputEditor/Private/Layout/ComboActionGraphLayoutStrategy.cpp

@@ -52,7 +52,7 @@ FBox2D UComboActionGraphLayoutStrategy::GetActualBounds(UComboActionGraphNode *R
 
 			Rtn += GetNodeBound(this->EdGraph->NodeMap[Node]);
 
-			for (UComboActionGraphNode *ChildNode : Node->ChildrenNodes)
+			for (UComboActionGraphNode *ChildNode : Node->ChildNodes)
 			{
 				NextLevelNodes.Add(ChildNode);
 			}
@@ -82,7 +82,7 @@ void UComboActionGraphLayoutStrategy::RandomLayoutOneTree(UComboActionGraphNode
 			EdNode_Node->NodePosX = UKismetMathLibrary::RandomFloatInRange(Bound.Min.X, Bound.Max.X);
 			EdNode_Node->NodePosY = UKismetMathLibrary::RandomFloatInRange(Bound.Min.Y, Bound.Max.Y);
 
-			for (UComboActionGraphNode *ChildNode : Node->ChildrenNodes)
+			for (UComboActionGraphNode *ChildNode : Node->ChildNodes)
 			{
 				NextLevelNodes.Add(ChildNode);
 			}

Source/ComboInputEditor/Private/Layout/ComboActionTreeSolveLayoutStrategy.cpp

@@ -66,13 +66,13 @@ void UComboActionTreeSolveLayoutStrategy::InitPass(UComboActionGraphNode *RootNo
 	UEdComboActionGraphNode *EdNode_RootNode = this->EdGraph->NodeMap[RootNode];
 
 	FVector2D ChildAnchor(FVector2D(0.0f, this->GetNodeHeight(EdNode_RootNode) + this->OptimalDistance + Anchor.Y));
-	for (int32 i = 0; i < RootNode->ChildrenNodes.Num(); i++)
+	for (int32 i = 0; i < RootNode->ChildNodes.Num(); i++)
 	{
-		UComboActionGraphNode *Child = RootNode->ChildrenNodes[i];
+		UComboActionGraphNode *Child = RootNode->ChildNodes[i];
 		UEdComboActionGraphNode *EdNode_ChildNode = this->EdGraph->NodeMap[Child];
 		if (i > 0)
 		{
-			UComboActionGraphNode *PreChild = RootNode->ChildrenNodes[i - 1];
+			UComboActionGraphNode *PreChild = RootNode->ChildNodes[i - 1];
 			UEdComboActionGraphNode *EdNode_PreChildNode = this->EdGraph->NodeMap[PreChild];
 			ChildAnchor.X += this->OptimalDistance + this->GetNodeWidth(EdNode_PreChildNode) / 2;
 		}
@@ -83,7 +83,7 @@ void UComboActionTreeSolveLayoutStrategy::InitPass(UComboActionGraphNode *RootNo
 	float NodeWidth = this->GetNodeWidth(EdNode_RootNode);
 
 	EdNode_RootNode->NodePosY = Anchor.Y;
-	if (RootNode->ChildrenNodes.Num() == 0)
+	if (RootNode->ChildNodes.Num() == 0)
 	{
 		EdNode_RootNode->NodePosX = Anchor.X - NodeWidth / 2;
 	}
@@ -96,9 +96,9 @@ void UComboActionTreeSolveLayoutStrategy::InitPass(UComboActionGraphNode *RootNo
 bool UComboActionTreeSolveLayoutStrategy::ResolveConflictPass(UComboActionGraphNode *Node)
 {
 	bool HasConflict = false;
-	for (int32 i = 0; i < Node->ChildrenNodes.Num(); ++i)
+	for (int32 i = 0; i < Node->ChildNodes.Num(); ++i)
 	{
-		UComboActionGraphNode *Child = Node->ChildrenNodes[i];
+		UComboActionGraphNode *Child = Node->ChildNodes[i];
 		if (this->ResolveConflictPass(Child))
 		{
 			HasConflict = true;
@@ -107,7 +107,7 @@ bool UComboActionTreeSolveLayoutStrategy::ResolveConflictPass(UComboActionGraphN
 
 	for (const UComboActionGraphNode *ParentNode : Node->ParentNodes)
 	{
-		for (UComboActionGraphNode *LeftSibling : ParentNode->ChildrenNodes)
+		for (UComboActionGraphNode *LeftSibling : ParentNode->ChildNodes)
 		{
 			if (LeftSibling == Node)
 			{
@@ -183,7 +183,7 @@ void UComboActionTreeSolveLayoutStrategy::GetLeftContour(UComboActionGraphNode *
 		Contour[Level] = EdNode_Node;
 	}
 
-	for (UComboActionGraphNode *Child : RootNode->ChildrenNodes)
+	for (UComboActionGraphNode *Child : RootNode->ChildNodes)
 	{
 		this->GetLeftContour(Child, Level + 1, Contour);
 	}
@@ -201,7 +201,7 @@ void UComboActionTreeSolveLayoutStrategy::GetRightContour(UComboActionGraphNode
 		Contour[Level] = EdNode_Node;
 	}
 
-	for (UComboActionGraphNode *Child : RootNode->ChildrenNodes)
+	for (UComboActionGraphNode *Child : RootNode->ChildNodes)
 	{
 		this->GetRightContour(Child, Level + 1, Contour);
 	}
@@ -213,7 +213,7 @@ void UComboActionTreeSolveLayoutStrategy::ShiftSubTree(UComboActionGraphNode *Ro
 	EdNode_Node->NodePosX += Offset.X;
 	EdNode_Node->NodePosY += Offset.Y;
 
-	for (UComboActionGraphNode *Child : RootNode->ChildrenNodes)
+	for (UComboActionGraphNode *Child : RootNode->ChildNodes)
 	{
 		if (Child->ParentNodes[0] == RootNode)
 		{
@@ -225,17 +225,17 @@ void UComboActionTreeSolveLayoutStrategy::ShiftSubTree(UComboActionGraphNode *Ro
 void UComboActionTreeSolveLayoutStrategy::UpdateParentNodePosition(UComboActionGraphNode *RootNode)
 {
 	UEdComboActionGraphNode *EdNode_ParentNode = this->EdGraph->NodeMap[RootNode];
-	if (RootNode->ChildrenNodes.Num() % 2 == 0)
+	if (RootNode->ChildNodes.Num() % 2 == 0)
 	{
-		UEdComboActionGraphNode *FirstChild = this->EdGraph->NodeMap[RootNode->ChildrenNodes[0]];
-		UEdComboActionGraphNode *LastChild = this->EdGraph->NodeMap[RootNode->ChildrenNodes.Last()];
+		UEdComboActionGraphNode *FirstChild = this->EdGraph->NodeMap[RootNode->ChildNodes[0]];
+		UEdComboActionGraphNode *LastChild = this->EdGraph->NodeMap[RootNode->ChildNodes.Last()];
 		float LeftBound = FirstChild->NodePosX;
 		float RightBound = LastChild->NodePosX + this->GetNodeWidth(LastChild);
 		EdNode_ParentNode->NodePosX = (LeftBound + RightBound) / 2 - this->GetNodeWidth(EdNode_ParentNode) / 2;
 	}
 	else
 	{
-		UEdComboActionGraphNode *MidChild = this->EdGraph->NodeMap[RootNode->ChildrenNodes[RootNode->ChildrenNodes.Num() / 2]];
+		UEdComboActionGraphNode *MidChild = this->EdGraph->NodeMap[RootNode->ChildNodes[RootNode->ChildNodes.Num() / 2]];
 		EdNode_ParentNode->NodePosX = MidChild->NodePosX + this->GetNodeWidth(MidChild) / 2 - this->GetNodeWidth(EdNode_ParentNode) / 2;
 	}
 }

Source/ComboInputEditor/Private/Popups/ComboInputPopup_GraphValidation.cpp

@@ -0,0 +1,147 @@
+#include "Popups/ComboInputPopup_GraphValidation.h"
+
+#include "ComboInputEditor.h"
+#include "Helpers/ComboActionGraphColors.h"
+#include "Interfaces/IPluginManager.h"
+#include "Settings/ComboActionGraphEditorSettings.h"
+#include "Widgets/Layout/SScrollBox.h"
+#include "Widgets/Text/SRichTextBlock.h"
+
+#define LOCTEXT_NAMESPACE "ComboInputPopup_GraphValidation"
+
+
+void ComboInputPopup_GraphValidation::OnBrowserLinkClicked(const FSlateHyperlinkRun::FMetadata &Metadata)
+{
+	const FString *URL = Metadata.Find(TEXT("href"));
+
+	if (URL)
+	{
+		FPlatformProcess::LaunchURL(**URL, nullptr, nullptr);
+	}
+}
+
+TSharedPtr<SWindow> ComboInputPopup_GraphValidation::Open(const TArray<FText> ValidationMessages)
+{
+	if (!FSlateApplication::Get().CanDisplayWindows())
+	{
+		return nullptr;
+	}
+
+	const FComboInputEditorModule &Module = FModuleManager::GetModuleChecked<FComboInputEditorModule>("ComboInputEditor");
+	const TSharedPtr<FSlateStyleSet> &EditorStyle = Module.Get().GetComboInputEditorStyleSet();
+
+	const TSharedRef<SBorder> WindowContent = SNew(SBorder)
+			.BorderImage(EditorStyle->GetBrush("MDSStyleSet.Node.TextSoftEdges"))
+			.BorderBackgroundColor
+			(
+				ComboActionGraphColors::ValidationGraph::DarkTheme
+			)
+			.Padding(FMargin(8.0f, 8.0f));
+	
+	TSharedPtr<SWindow> Window = SNew(SWindow)
+				.AutoCenter(EAutoCenter::PreferredWorkArea)
+				.SupportsMaximize(false)
+				.SupportsMinimize(false)
+				.SizingRule(ESizingRule::FixedSize)
+				.ClientSize(FVector2D(650, 750))
+				.Title(FText::FromString("Combo Action Graph Validation"))
+				.IsTopmostWindow(true)
+	[
+		WindowContent
+	];
+
+	const FSlateFontInfo Heading1Font = FCoreStyle::GetDefaultFontStyle("Bold", 24);
+	const FSlateFontInfo Heading2Font = FCoreStyle::GetDefaultFontStyle("Bold", 18);
+	const FSlateFontInfo NormalFont = FCoreStyle::GetDefaultFontStyle("Regular", 12);
+	
+	const TSharedRef<SScrollBox> ListOfMessages = SNew(SScrollBox);
+	for (auto Itr : ValidationMessages)
+	{
+		ListOfMessages->AddSlot()
+		[
+			SNew(SBox)
+			.Padding(FMargin(0.f, 3.5f, 0.f, 3.5f))
+			[
+				SNew(SRichTextBlock)
+				.Text(Itr)
+				.TextStyle(FAppStyle::Get(), "NormalText")
+				.DecoratorStyleSet(&FAppStyle::Get())
+				.AutoWrapText(true)
+			]
+		];
+	}
+	
+	if (ValidationMessages.Num() == 0)
+	{
+		ListOfMessages->AddSlot()
+		[
+			SNew(STextBlock)
+			.Text(FText::FromString("There are no issues with your graph. You can close this window."))
+			.TextStyle(FAppStyle::Get(), "NormalText")
+			.AutoWrapText(true)
+		];
+	}
+	
+	const TSharedRef<SVerticalBox> InnerContent =
+		SNew(SVerticalBox)
+		+ SVerticalBox::Slot()
+		  .FillHeight(1.0)
+		  .Padding(10)
+		[
+			SNew(SBorder)
+			.Padding(10)
+			.BorderImage(FAppStyle::GetBrush("ToolPanel.DarkGroupBorder"))
+			[
+				ListOfMessages
+			]
+		]
+		+ SVerticalBox::Slot()
+		  .AutoHeight()
+		  .Padding(10)
+		[
+			SNew(SHorizontalBox)
+			+ SHorizontalBox::Slot().FillWidth(1.0f)
+			[
+				SNew(SButton)
+				.HAlign(HAlign_Center)
+				.OnClicked_Lambda([Window]()
+				{
+					Window->RequestDestroyWindow();
+
+					return FReply::Handled();
+				})
+				[
+					SNew(SHorizontalBox)
+					+ SHorizontalBox::Slot()
+					.AutoWidth()
+					[
+						SNew(STextBlock)
+						.Text(FText::FromString("Close window"))
+					]
+
+					+ SHorizontalBox::Slot()
+					[
+						SNew(SSpacer)
+						.Size(FVector2D(5, 0))
+					]
+			
+					+ SHorizontalBox::Slot()
+					.AutoWidth()
+					[
+						SNew(SImage)
+						.ColorAndOpacity(FLinearColor::Red)
+						.Image(EditorStyle->GetBrush("MDSStyleSet.Icon.Close"))
+					]
+				]
+			]
+		];
+
+	const int32 A = InnerContent.Get().GetAllChildren()->Num();
+	
+	WindowContent->SetContent(InnerContent);
+	Window = FSlateApplication::Get().AddWindow(Window.ToSharedRef());
+
+	return Window;
+}
+
+#undef LOCTEXT_NAMESPACE

Source/ComboInputEditor/Private/Popups/ComboInputPopup_GraphValidation.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Framework/Text/SlateHyperlinkRun.h"
+
+
+class SScrollBox;
+
+class ComboInputPopup_GraphValidation
+{
+public:
+	static TSharedPtr<SWindow> Open(const TArray<FText> ValidationMessages);
+	static void OnBrowserLinkClicked(const FSlateHyperlinkRun::FMetadata &Metadata);
+};

Source/ComboInputEditor/Public/ComboInputEditor.h

@@ -95,7 +95,6 @@ private:
 	TArray<TSharedPtr<IAssetTypeActions>> CreatedAssetTypeActions;
 
 	TSharedPtr<class FSlateStyleSet> ComboInputEditorStyleSet;
-	TSharedPtr<class FSlateStyleSet> ComboActionGraphEditorStyleSet;
 	TSharedPtr<struct FGraphPanelNodeFactory> ComboActionGraphPanelNodeFactory;
 	TSharedPtr<class FAssetTypeActions_ComboActionGraph> ComboActionGraphAssetActions;
 };