LiveLinkRetargetAsset.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Map.h"
#include "CoreMinimal.h"
#include "UObject/NameTypes.h"
#include "UObject/Object.h"
#include "UObject/ObjectMacros.h"
#include "UObject/UObjectGlobals.h"
 
#include "LiveLinkRetargetAsset.generated.h"
 
class USkeleton;
struct FBlendedCurve;
struct FCompactPose;
struct FLiveLinkAnimationFrameData;
struct FLiveLinkBaseFrameData;
struct FLiveLinkBaseStaticData;
struct FLiveLinkSkeletonStaticData;
 
// Base class for retargeting live link data. 
UCLASS(Abstract, MinimalAPI)
class ULiveLinkRetargetAsset : public UObject
{
    GENERATED_UCLASS_BODY()
 
    // Takes the supplied curve name and value and applies it to the blended curve (as approriate given the supplied skeleton
    LIVELINKANIMATIONCORE_API void ApplyCurveValue(const USkeleton* Skeleton, const FName CurveName, const float CurveValue, FBlendedCurve& OutCurve) const;
 
    // Builds curve data into OutCurve from the supplied live link frame
    LIVELINKANIMATIONCORE_API void BuildCurveData(const FLiveLinkSkeletonStaticData* InSkeletonData, const FLiveLinkAnimationFrameData* InFrameData, const FCompactPose& InPose, FBlendedCurve& OutCurve) const;
 
    // Builds curve data into OutCurve from the supplied map of curve name to float
    LIVELINKANIMATIONCORE_API void BuildCurveData(const TMap<FName, float>& CurveMap, const FCompactPose& InPose, FBlendedCurve& OutCurve) const;
 
    // Called once when the retargeter is created 
    virtual void Initialize() {}
 
    // Build OutPose from AnimationData if subject was from this type
    virtual void BuildPoseFromAnimationData(float DeltaTime, const FLiveLinkSkeletonStaticData* InSkeletonData, const FLiveLinkAnimationFrameData* InFrameData, FCompactPose& OutPose) {}
 
    // Build OutPose and OutCurve from the basic data. Called for every type of subjects
    virtual void BuildPoseAndCurveFromBaseData(float DeltaTime, const FLiveLinkBaseStaticData* InBaseStaticData, const FLiveLinkBaseFrameData* InBaseFrameData, FCompactPose& OutPose, FBlendedCurve& OutCurve) {}
};