LiveLinkInstance.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Animation/AnimInstanceProxy.h"
#include "Animation/AnimInstance.h"
#include "AnimNode_LiveLinkPose.h"
 
#include "LiveLinkInstance.generated.h"
 
class ULiveLinkRetargetAsset;
 
USTRUCT()
struct FLiveLinkInstanceProxy : public FAnimInstanceProxy
{
public:
    friend struct FAnimNode_LiveLinkPose;
 
    GENERATED_BODY()
 
    FLiveLinkInstanceProxy()
    {
    }
 
    FLiveLinkInstanceProxy(UAnimInstance* InAnimInstance)
        : FAnimInstanceProxy(InAnimInstance)
    {
    }
 
    LIVELINKANIMATIONCORE_API virtual void Initialize(UAnimInstance* InAnimInstance) override;
    LIVELINKANIMATIONCORE_API virtual void PreUpdate(UAnimInstance* InAnimInstance, float DeltaSeconds) override;
    LIVELINKANIMATIONCORE_API virtual bool Evaluate(FPoseContext& Output) override;
    LIVELINKANIMATIONCORE_API virtual void UpdateAnimationNode(const FAnimationUpdateContext& InContext) override;
 
    UPROPERTY(EditAnywhere, Category = Settings)
    FAnimNode_LiveLinkPose PoseNode;
};
 
UCLASS(transient, NotBlueprintable, MinimalAPI)
class ULiveLinkInstance : public UAnimInstance
{
    GENERATED_BODY()
 
public:
 
    UFUNCTION(BlueprintCallable, Category="Animation|Live Link")
    void SetSubject(FLiveLinkSubjectName SubjectName)
    {
        GetProxyOnGameThread<FLiveLinkInstanceProxy>().PoseNode.LiveLinkSubjectName = SubjectName;
    }
 
    UFUNCTION(BlueprintCallable, Category = "Animation|Live Link")
    void SetRetargetAsset(TSubclassOf<ULiveLinkRetargetAsset> RetargetAsset)
    {
        GetProxyOnGameThread<FLiveLinkInstanceProxy>().PoseNode.RetargetAsset = RetargetAsset;
    }
 
    UFUNCTION(BlueprintCallable, Category = "Animation|Live Link")
    void EnableLiveLinkEvaluation(bool bDoEnable)
    {
        GetProxyOnGameThread<FLiveLinkInstanceProxy>().PoseNode.bDoLiveLinkEvaluation = bDoEnable;
    }
 
    bool GetEnableLiveLinkEvaluation()
    {
        return GetProxyOnGameThread<FLiveLinkInstanceProxy>().PoseNode.bDoLiveLinkEvaluation;
    }
 
protected:
    LIVELINKANIMATIONCORE_API virtual FAnimInstanceProxy* CreateAnimInstanceProxy() override;
    LIVELINKANIMATIONCORE_API virtual void DestroyAnimInstanceProxy(FAnimInstanceProxy* InProxy) override;
 
    // Cache for GC
    UPROPERTY(transient)
    TObjectPtr<ULiveLinkRetargetAsset> CurrentRetargetAsset;
 
    friend FLiveLinkInstanceProxy;
};