AnimNode_Slot.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Animation/AnimTypes.h"
#include "Animation/AnimNodeBase.h"
#include "AnimNode_Slot.generated.h"
 
// An animation slot node normally acts as a passthru, but a montage or PlaySlotAnimation call from
// game code can cause an animation to blend in and be played on the slot temporarily, overriding the
// Source input.
USTRUCT(BlueprintInternalUseOnly)
struct FAnimNode_Slot : public FAnimNode_Base
{
    GENERATED_USTRUCT_BODY()
 
    // The source input, passed thru to the output unless a montage or slot animation is currently playing
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Links)
    FPoseLink Source;
 
    // The name of this slot, exposed to gameplay code, etc...
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Settings, meta=(CustomizeProperty))
    FName SlotName;
 
    //Whether we should continue to update the source pose regardless of whether it would be used.
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Settings)
    bool bAlwaysUpdateSourcePose;
 
protected:
    virtual void PostEvaluateSourcePose(FPoseContext& SourceContext) {}
 
    FSlotNodeWeightInfo WeightData;
    FGraphTraversalCounter SlotNodeInitializationCounter;
 
public: 
    ANIMGRAPHRUNTIME_API FAnimNode_Slot();
 
    // FAnimNode_Base interface
    ANIMGRAPHRUNTIME_API virtual void Initialize_AnyThread(const FAnimationInitializeContext& Context) override;
    ANIMGRAPHRUNTIME_API virtual void CacheBones_AnyThread(const FAnimationCacheBonesContext& Context) override;
    ANIMGRAPHRUNTIME_API virtual void Update_AnyThread(const FAnimationUpdateContext& Context) override;
    ANIMGRAPHRUNTIME_API virtual void Evaluate_AnyThread(FPoseContext& Output) override;
    ANIMGRAPHRUNTIME_API virtual void GatherDebugData(FNodeDebugData& DebugData) override;
    // End of FAnimNode_Base interface
};