UnrealEngineUWP/Engine/Source/Editor/BlueprintGraph/Private/K2Node_GetInputVectorAxisValue.cpp

// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.

#include "BlueprintGraphPrivatePCH.h"
#include "K2Node_GetInputVectorAxisValue.h"
#include "CompilerResultsLog.h"
#include "BlueprintNodeSpawner.h"
#include "Engine/InputVectorAxisDelegateBinding.h"
#include "BlueprintActionDatabaseRegistrar.h"

UK2Node_GetInputVectorAxisValue::UK2Node_GetInputVectorAxisValue(const FObjectInitializer& ObjectInitializer)
	: Super(ObjectInitializer)
{
	bConsumeInput = true;
}

void UK2Node_GetInputVectorAxisValue::Initialize(const FKey AxisKey)
{
	InputAxisKey = AxisKey;
	SetFromFunction(AActor::StaticClass()->FindFunctionByName(TEXT("GetInputVectorAxisValue")));
}

FText UK2Node_GetInputVectorAxisValue::GetTooltipText() const
{
	FFormatNamedArguments Args;
	Args.Add(TEXT("AxisKey"), InputAxisKey.GetDisplayName());
	return FText::Format(NSLOCTEXT("K2Node", "GetInputVectorAxis_Tooltip", "Returns the current value of input axis key {AxisKey}.  If input is disabled for the actor the value will be (0, 0, 0)."), Args);
}

void UK2Node_GetInputVectorAxisValue::ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const
{
	// Skip GetInputKeyAxisValue validation
	UK2Node_CallFunction::ValidateNodeDuringCompilation(MessageLog);

	if (!InputAxisKey.IsValid())
	{
		MessageLog.Warning(*FText::Format(NSLOCTEXT("KismetCompiler", "Invalid_GetInputVectorAxis_Warning", "GetInputVectorAxis Value specifies invalid FKey'{0}' for @@"), FText::FromString(InputAxisKey.ToString())).ToString(), this);
	}
	else if (!InputAxisKey.IsVectorAxis())
	{
		MessageLog.Warning(*FText::Format(NSLOCTEXT("KismetCompiler", "NotAxis_GetInputVectorAxis_Warning", "GetInputVectorAxis Value specifies FKey'{0}' which is not a vector axis for @@"), FText::FromString(InputAxisKey.ToString())).ToString(), this);
	}
	else if (!InputAxisKey.IsBindableInBlueprints())
	{
		MessageLog.Warning(*FText::Format(NSLOCTEXT("KismetCompiler", "NotBindanble_GetInputVectorAxis_Warning", "GetInputVectorAxis Value specifies FKey'{0}' that is not blueprint bindable for @@"), FText::FromString(InputAxisKey.ToString())).ToString(), this);
	}
}

UClass* UK2Node_GetInputVectorAxisValue::GetDynamicBindingClass() const
{
	return UInputVectorAxisDelegateBinding::StaticClass();
}

void UK2Node_GetInputVectorAxisValue::RegisterDynamicBinding(UDynamicBlueprintBinding* BindingObject) const
{
	UInputVectorAxisDelegateBinding* InputVectorAxisBindingObject = CastChecked<UInputVectorAxisDelegateBinding>(BindingObject);

	FBlueprintInputAxisKeyDelegateBinding Binding;
	Binding.AxisKey = InputAxisKey;
	Binding.bConsumeInput = bConsumeInput;
	Binding.bExecuteWhenPaused = bExecuteWhenPaused;

	InputVectorAxisBindingObject->InputAxisKeyDelegateBindings.Add(Binding);
}

void UK2Node_GetInputVectorAxisValue::GetMenuActions(FBlueprintActionDatabaseRegistrar& ActionRegistrar) const
{
	TArray<FKey> AllKeys;
	EKeys::GetAllKeys(AllKeys);

	auto CustomizeInputNodeLambda = [](UEdGraphNode* NewNode, bool bIsTemplateNode, FKey Key)
	{
		UK2Node_GetInputVectorAxisValue* InputNode = CastChecked<UK2Node_GetInputVectorAxisValue>(NewNode);
		InputNode->Initialize(Key);
	};

	// actions get registered under specific object-keys; the idea is that 
	// actions might have to be updated (or deleted) if their object-key is  
	// mutated (or removed)... here we use the node's class (so if the node 
	// type disappears, then the action should go with it)
	UClass* ActionKey = GetClass();

	for (FKey const Key : AllKeys)
	{
		if (!Key.IsBindableInBlueprints() || !Key.IsVectorAxis())
		{
			continue;
		}

		// to keep from needlessly instantiating a UBlueprintNodeSpawner, first   
		// check to make sure that the registrar is looking for actions of this type
		// (could be regenerating actions for a specific asset, and therefore the 
		// registrar would only accept actions corresponding to that asset)
		if (!ActionRegistrar.IsOpenForRegistration(ActionKey))
		{
			continue;
		}

		UBlueprintNodeSpawner* NodeSpawner = UBlueprintNodeSpawner::Create(GetClass());
		check(NodeSpawner != nullptr);
		NodeSpawner->DefaultMenuSignature.MenuName = FText::Format(NSLOCTEXT("K2Node_GetInputVectorAxisValue", "MenuName", "Get {0}"), Key.GetDisplayName());

		NodeSpawner->CustomizeNodeDelegate = UBlueprintNodeSpawner::FCustomizeNodeDelegate::CreateStatic(CustomizeInputNodeLambda, Key);
		ActionRegistrar.AddBlueprintAction(ActionKey, NodeSpawner);
	}
}