BaseAttributeSet.h

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// Fill out your copyright notice in the Description page of Project Settings.
 
#pragma once
 
#include "AttributeSet.h"
#include "AbilitySystemComponent.h"
#include "GameplayTagContainer.h"
#include "BaseAttributeSet.generated.h"
 
class AActor;
 
// 데미지 1회 처리 결과. 히트 이펙트 Cue 선택(크리티컬/무기별) + 데미지 텍스트 표시용 데이터 묶음.
USTRUCT()
struct FDamageResultData
{
    GENERATED_BODY()
 
    UPROPERTY()
    TObjectPtr<AActor> TargetActor = nullptr;
 
    UPROPERTY()
    TObjectPtr<AActor> SourceActor = nullptr;
 
    UPROPERTY()
    FVector HitLocation = FVector::ZeroVector;
 
    UPROPERTY()
    FVector HitNormal = FVector::ZeroVector;
 
    UPROPERTY()
    float DamageAmount = 0.0f;
 
    UPROPERTY()
    bool bIsCritical = false;
 
    UPROPERTY()
    FGameplayTag HitEffectTag;
 
    UPROPERTY()
    FGameplayTag DamageTypeTag;
    
    UPROPERTY()
    FGameplayEffectContextHandle EffectContextHandle;
};
 
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FDeathDelegate);
 
DECLARE_MULTICAST_DELEGATE_OneParam(FOnDamageTakenDelegate, const FDamageResultData&);
 
#define ATTRIBUTE_ACCESSORS(ClassName, PropertyName) \
GAMEPLAYATTRIBUTE_PROPERTY_GETTER(ClassName, PropertyName) \
GAMEPLAYATTRIBUTE_VALUE_GETTER(PropertyName) \
GAMEPLAYATTRIBUTE_VALUE_SETTER(PropertyName) \
GAMEPLAYATTRIBUTE_VALUE_INITTER(PropertyName)
 
UCLASS(Abstract)
class CK_UE_API UBaseAttributeSet : public UAttributeSet
{
    GENERATED_BODY()
 
public:
    UBaseAttributeSet();
 
public:
    virtual void PreAttributeChange(const FGameplayAttribute& Attribute, float& NewValue) override;
    virtual void PostGameplayEffectExecute(const struct FGameplayEffectModCallbackData& Data) override;
 
    // 초기화 헬퍼 함수
    void InitBaseStats(float InMaxHealth, float InMoveSpeed, float InAttack, float InAttackSpeed, float InKnockbackResistance = 0.0f, float InCooldownMultiplier = 1.0f);
 
    FDamageResultData GenerateDamageResultData(const struct FGameplayEffectModCallbackData& Data, float LocalDamage, bool bCriticalHit) const;
 
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, Health);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, MaxHealth);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, MoveSpeed);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, Attack);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, AttackSpeed);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, KnockbackResistance);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, Damage);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, DamageIsCritical);
    ATTRIBUTE_ACCESSORS(UBaseAttributeSet, CooldownMultiplier);
 
public:
    FORCEINLINE bool IsOutOfHealth() const
    {
        return bOutOfHealth;
    }
 
public:
    mutable FDeathDelegate OnDeathDelegate;
    mutable FOnDamageTakenDelegate OnDamageDelegate;
 
protected:
    bool bOutOfHealth = false;
 
protected:
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData Health;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData MaxHealth;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData MoveSpeed;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData Attack;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData AttackSpeed;
 
    // 넉백 저항 비율. 0이면 넉백 전체 적용, 1이면 저항 무시 공격이 아닌 이상 넉백 시간이 0이 된다.
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData KnockbackResistance;
 
    //스킬 쿨타임 증가 or 감소 비율. 스킬 한정으로 평타는 포함되지 않는다. 기본값은 1이다. 
    //CooldownTime + (CooldownMultiplier - 1) * CooldownTime 방식으로 씀.  
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (AllowPrivateAccess = true))
    FGameplayAttributeData CooldownMultiplier;
 
protected:
    UPROPERTY(BlueprintReadOnly, Category = "Stat", meta = (HideFromModifiers))
    FGameplayAttributeData Damage;
 
    // 이번 데미지기 크리티컬 히트인지 표시하는 임시 플래그
    UPROPERTY(BlueprintReadOnly, Category = "Damage", meta = (HideFromModifiers))
    FGameplayAttributeData DamageIsCritical;
};