DataflowOverrideNode.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "ChaosLog.h"
#include "CoreMinimal.h"
#include "Dataflow/DataflowConnection.h"
#include "Dataflow/DataflowNodeParameters.h"
#include "Dataflow/DataflowNode.h"
 
#include "DataflowOverrideNode.generated.h"
 
struct FDataflowInput;
struct FDataflowOutput;
 
USTRUCT()
struct FDataflowOverrideNode : public FDataflowNode
{
    GENERATED_USTRUCT_BODY()
 
    DATAFLOW_NODE_DEFINE_INTERNAL(FDataflowOverrideNode, "DataflowOverrideNode", "BaseClass", "")
 
public:
    FDataflowOverrideNode(const UE::Dataflow::FNodeParameters& Param, FGuid InGuid = FGuid::NewGuid())
        : Super(Param,InGuid) 
    {
        RegisterInputConnection(&Key);
        RegisterInputConnection(&Default);
        RegisterOutputConnection(&IsOverriden);
    }
 
    virtual ~FDataflowOverrideNode() { }
 
    DATAFLOWCORE_API bool ShouldInvalidate(FName InKey) const;
 
    template <class T>
    T GetDefaultValue(UE::Dataflow::FContext& Context) const
    {
        return GetValue<T>(Context, &Default, Default);
    }
 
    template <>
    DATAFLOWCORE_API int32 GetDefaultValue(UE::Dataflow::FContext& Context) const;
 
    template <>
    DATAFLOWCORE_API float GetDefaultValue(UE::Dataflow::FContext& Context) const;
 
    DATAFLOWCORE_API FString GetValueFromAsset(UE::Dataflow::FContext& Context, const UObject* InOwner) const;
 
    //
    // Evaluate
    //
    virtual void Evaluate(UE::Dataflow::FContext& Context, const FDataflowOutput* Out) const { ensure(false); };
 
public:
    UPROPERTY(EditAnywhere, Category = "Overrides", meta = (DataflowInput))
    FName Key = "Key";
 
    UPROPERTY(EditAnywhere, Category = "Overrides", meta = (DataflowInput))
    FString Default = FString("0");
 
    UPROPERTY(meta = (DataflowOutput))
    bool IsOverriden = false;
};