AnimNode_ModifyCurve.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Animation/AnimNodeBase.h"
#include "AnimNode_ModifyCurve.generated.h"
 
UENUM()
enum class EModifyCurveApplyMode : uint8
{
    Add,
 
    Scale,
 
    Blend,
 
    WeightedMovingAverage,
 
    RemapCurve
};
 
USTRUCT(BlueprintInternalUseOnly)
struct FAnimNode_ModifyCurve : public FAnimNode_Base
{
    GENERATED_BODY()
 
    UPROPERTY(EditAnywhere, EditFixedSize, BlueprintReadWrite, Category = Links)
    FPoseLink SourcePose;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, editfixedsize, Category = ModifyCurve, meta = (PinHiddenByDefault))
    TMap<FName, float> CurveMap;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, editfixedsize, Category = ModifyCurve, meta = (BlueprintCompilerGeneratedDefaults, PinShownByDefault))
    TArray<float> CurveValues;
 
    UPROPERTY(meta = (BlueprintCompilerGeneratedDefaults))
    TArray<FName> CurveNames;
 
    UE_DEPRECATED(5.3, "LastCurveValues is no longer used.")
    TArray<float> LastCurveValues;
 
    UE_DEPRECATED(5.3, "LastCurveMapValues is no longer used.")
    TMap<FName, float> LastCurveMapValues;
 
    UE_DEPRECATED(5.3, "bInitializeLastValuesMap is no longer used.")
    bool bInitializeLastValuesMap;
 
    FBlendedHeapCurve LastCurve;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = ModifyCurve, meta = (PinShownByDefault))
    float Alpha;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = ModifyCurve)
    EModifyCurveApplyMode ApplyMode;
 
    ANIMGRAPHRUNTIME_API FAnimNode_ModifyCurve();
    PRAGMA_DISABLE_DEPRECATION_WARNINGS
    FAnimNode_ModifyCurve(const FAnimNode_ModifyCurve&) = default;
    FAnimNode_ModifyCurve& operator=(const FAnimNode_ModifyCurve&) = default;
    ANIMGRAPHRUNTIME_API PRAGMA_ENABLE_DEPRECATION_WARNINGS
 
    // FAnimNode_Base interface
    virtual void Initialize_AnyThread(const FAnimationInitializeContext& Context) override;
    ANIMGRAPHRUNTIME_API virtual void CacheBones_AnyThread(const FAnimationCacheBonesContext& Context) override;
    ANIMGRAPHRUNTIME_API virtual void Evaluate_AnyThread(FPoseContext& Output) override;
 
    ANIMGRAPHRUNTIME_API virtual void Update_AnyThread(const FAnimationUpdateContext& Context) override;
    ANIMGRAPHRUNTIME_API virtual void GatherDebugData(FNodeDebugData& DebugData) override;
    // End of FAnimNode_Base interface
 
#if WITH_EDITOR
    ANIMGRAPHRUNTIME_API void AddCurve(const FName& InName, float InValue);
    ANIMGRAPHRUNTIME_API void RemoveCurve(int32 PoseIndex);
#endif // WITH_EDITOR
 
private:
    ANIMGRAPHRUNTIME_API float ProcessCurveOperation(float CurrentValue, float NewValue) const;
    ANIMGRAPHRUNTIME_API float ProcessCurveWMAOperation(float CurrentValue, float LastValue) const;
};