VHFacialExpressions.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "Components/ActorComponent.h"
#include "Animation/PoseAsset.h"
#include "Misc/DefaultValueHelper.h"
#include "VHFacialExpressions.generated.h"

class UAnimInstance;
class AVirtualHuman;

UENUM()
enum Emotions 
{
	Neutral = 0	UMETA(DisplayName = "Neutral"), 
	Happiness = 1 UMETA(DisplayName = "Happiness"), 
	Sadness = 2 UMETA(DisplayName = "Sadness"),
	Surprise = 3 UMETA(DisplayName = "Surprise"),
	Fear = 4 UMETA(DisplayName = "Fear"),
	Anger = 5 UMETA(DisplayName = "Anger"),
	Disgust = 6 UMETA(DisplayName = "Disgust"),
	Contempt = 7 UMETA(DisplayName = "Contempt"),
	Custom = 9 UMETA(DisplayName = "Custom")
};

UENUM()
enum FACSSidedness 
{
	AU_Both = 0	UMETA(DisplayName = "Both"), 
	AU_Left = 1 UMETA(DisplayName = "Left"), 
	AU_Right = 2 UMETA(DisplayName = "Right")
};

// Action Units (from FACS) and their associated CharacterCreator 3 blendshapes
// AUs that are bSided, use the names BlendShapeName + "_L" and + "_R"
USTRUCT()
struct FAUBlendshape
{
	GENERATED_BODY()
	int ActionUnitNumber;
	FString BlendShapeName;
	float BlendShapeValue;
};

USTRUCT()
struct FAUPose
{
	GENERATED_BODY()
	int ActionUnitNumber;
	bool bSided = false;
	//if not sided, Blendshapes has one element
	//if sided, Blendshapes has two elements: 0: left, 1: right
	TArray<TArray<FAUBlendshape>> Blendshapes;
};

USTRUCT(BlueprintType, Blueprintable)
struct FACSValue
{
	GENERATED_BODY()
	int AUNumber;
	float Value;
	FACSSidedness Side;
};


UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
class CHARACTERPLUGIN_API UVHFacialExpressions : public UActorComponent
{