[UE] Behavior Tree: 무기 장착(Equip)

현재 적 AI 순찰을 진행하다 Player가 시야 범위 내에 들어오면 접근한다. 이번 시간에는 Player에게 접근한 후 무기를 장착하는 것을 Behavior Tree를 통해 구현할 것이다. BTTask_Node를 새로 만들어 무기 장착 Task를 전담하게 할 것이다.

 

 

목차

 

 

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Plugins
	Weapon
		Resource
			Icon128.png weapon_thumbnail_icon.png
		Source
			Weapon
			SWeaponCheckBoxes.h .cpp SWeaponDetailsView.h .cpp SWeaponDoActionData.h .cpp SWeaponEquipmentData.h .cpp SWeaponHitData.h .cpp SWeaponLeftArea.h .cpp Weapon.Build.cs WeaponAssetEditor.h .cpp WeaponAssetFactory.h .cpp WeaponCommand.h .cpp  WeaponContextMenu.h .cpp WeaponModule.h .cpp WeaponStyle.h .cpp

 

Source
		BehaviorTree
		CBTService_Melee.h .cpp CBTTaskNode_Equip.h .cpp 생성 CBTTaskNode_Patrol.h .cpp CBTTaskNode_Speed.h .cpp CPatrol.h .cpp
		Characters
		CAIController.h .cpp CAnimInstance.h .cpp CEnemy.h .cpp  CEnemy_AI.h.cpp CPlayer.h.cpp ICharacter.h .cpp
		Components
		CAIBehaviorComponent.h .cpp CFeetComponent.h .cpp CMontagesComponent.h .cpp  CMovementComponent.h .cpp  CStateComponent.h .cpp CStatusComponent.h .cpp   CWeaponComponent.h .cpp  CZoomComponent.h .cpp
		Notifies
		CAnimNotifyState_BeginAction.h .cpp CAnimNotifyState_BowString.h .cpp CAnimNotify_CameraShake.h .cpp  CAnimNotify_End_Parkour CAnimNotifyState_EndAction.h .cpp CAnimNotify_EndState.h .cpp CAnimNotifyState.h .cpp CAnimNotifyState_CameraAnim.h .cpp CAnimNotifyState_Collision.h .cpp  CAnimNotifyState_Combo.h .cpp CAnimNotifyState_Equip.h .cpp CAnimNotifyState_SubAction.h .cpp
		Parkour
		CParkourComponent.h .cpp
		Utilities
		CHelper.h CLog.h .cpp
		Weapons
		CArrow.h .cpp CAura.h .cpp CCamerModifier.h .cpp CGhostTrail.h .cpp CRotate_Object.h .cpp CThornObject.h .cpp CAnimInstance_Bow.h .cpp CAttachment_Bow.h .cpp CDoAction_Around.h .cpp CDoAction_Bow.h .cpp CDoAction_Combo.h .cpp CDoAction_Warp.h .cpp CSubAction_Around.h .cpp CSubAction_Bow.h .cpp CSubAction_Fist.h .cpp CSubAction_Hammer.h .cpp CSubAction_Sword.h .cpp CDoAction_Warp.h .cpp CAttachment.h .cpp CDoAction.h .cpp CEquipment.h .cpp CSubAction.h .cpp CWeaponAsset.h .cpp CWeaponStructures.h .cpp
		Global.h CGameMode.h .cpp U2212_06.Build.cs
		U2212_06.uproject

 

 

무기 장착(Equip)

 

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CWeaponComponent

 

CWeaponComponent.h

#pragma once
#include "CoreMinimal.h"
#include "Components/ActorComponent.h"
#include "CWeaponComponent.generated.h"

UENUM(BlueprintType)
enum class EWeaponType : uint8
{
	Fist, Sword, Hammer, Warp, Around, Bow, Max,
};
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FWeaponTypeChanged, EWeaponType, InPrevType, EWeaponType, InNewType);

UCLASS(ClassGroup = (Custom), meta = (BlueprintSpawnableComponent))
class U2212_06_API UCWeaponComponent : public UActorComponent
{
	GENERATED_BODY()

private://DataAsset을 받아온다.
	UPROPERTY(EditAnywhere, Category = "DataAsset")
		class UCWeaponAsset* DataAssets[(int32)EWeaponType::Max];

public:
	FORCEINLINE EWeaponType GetWeaponType() { return Type; }

public: //무기 Type이 맞는지 확인해주는 함수들
	FORCEINLINE bool IsUnarmedMode() { return Type == EWeaponType::Max; }
	FORCEINLINE bool IsFistMode() { return Type == EWeaponType::Fist; }
	FORCEINLINE bool IsSwordMode() { return Type == EWeaponType::Sword; }
	FORCEINLINE bool IsHammerMode() { return Type == EWeaponType::Hammer; }
	FORCEINLINE bool IsWarpMode() { return Type == EWeaponType::Warp; }
	FORCEINLINE bool IsAroundMode() { return Type == EWeaponType::Around; }
	FORCEINLINE bool IsBowMode() { return Type == EWeaponType::Bow; }

public:
	UCWeaponComponent();

protected:
	virtual void BeginPlay() override;

public:
	virtual void TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction) override;

private:
	bool IsIdleMode();//StateComponent, WeaponComponent 둘 다 같은 레벨이다. 서로 소유할 수 없는 관계이기 때문에 참조만해서 리턴받기 위해 IsIdleMode를 사용한다.

public:
	class ACAttachment* GetAttachment();
	class UCEquipment* GetEquipment();
	class UCDoAction* GetDoAction();
	class UCSubAction* GetSubAction();

public: //무기 세팅
	void SetUnarmedMode();
	void SetFistMode();
	void SetSwordMode();
	void SetHammerMode();
	void SetWarpMode();
	void SetAroundMode();
	void SetBowMode();

	void DoAction();
	void SubAction_Pressed();
	void SubAction_Released();

private:
	void SetMode(EWeaponType InType);
	void ChangeType(EWeaponType InType);

public: //무기가 바뀌었을때 통보해줄 delegate
	FWeaponTypeChanged OnWeaponTypeChange;

private:
	class ACharacter* OwnerCharacter;

	EWeaponType Type = EWeaponType::Max;
};

인라인 함수 추가

• FORCEINLINE EWeaponType GetWeaponType() { return Type; }

 

 

 

CWeaponComponent.h

#include "Components/CWeaponComponent.h"
#include "Global.h"
#include "CStateComponent.h"
#include "GameFramework/Character.h"
#include "Weapons/CWeaponAsset.h"
#include "Weapons/CAttachment.h"
#include "Weapons/CEquipment.h"
#include "Weapons/CDoAction.h"
#include "Weapons/CSubAction.h"

UCWeaponComponent::UCWeaponComponent()
{
	//Tick을 실행시켜주는 코드
	PrimaryComponentTick.bCanEverTick = true;
}

void UCWeaponComponent::BeginPlay()
{
	Super::BeginPlay();

	OwnerCharacter = Cast<ACharacter>(GetOwner());
	for (int32 i=0; i < (int32)EWeaponType::Max; i++)
	{
		if (!!DataAssets[i]) //DataAssets[i]이 있다면(=무기가 할당되어 있다면)
			DataAssets[i]->BeginPlay(OwnerCharacter);//BeginPla y 시 OwnerCharacter에 Spawn시켜준다.
	}
}

void UCWeaponComponent::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction)
{
	Super::TickComponent(DeltaTime, TickType, ThisTickFunction);

	if (!!GetDoAction())//DoAction이 있다면
		GetDoAction()->Tick(DeltaTime);//DoAction의 Tick을 콜 해준다.

	if (!!GetSubAction())//SubAction이 있다면
		GetSubAction()->Tick(DeltaTime);//SubAction의 Tick을 콜 해준다.
}

bool UCWeaponComponent::IsIdleMode()
{
	return CHelpers::GetComponent<UCStateComponent>(OwnerCharacter)->IsIdleMode();
}

ACAttachment* UCWeaponComponent::GetAttachment()
{
	CheckTrueResult(IsUnarmedMode(), nullptr);
	CheckFalseResult(!!DataAssets[(int32)Type], nullptr);

	return DataAssets[(int32)Type]->GetAttachment();
}

UCEquipment* UCWeaponComponent::GetEquipment()
{
	CheckTrueResult(IsUnarmedMode(), nullptr);
	CheckFalseResult(!!DataAssets[(int32)Type], nullptr);

	return DataAssets[(int32)Type]->GetEquipment();
}

UCDoAction* UCWeaponComponent::GetDoAction()
{
	CheckTrueResult(IsUnarmedMode(), nullptr);
	CheckFalseResult(!!DataAssets[(int32)Type], nullptr);

	return DataAssets[(int32)Type]->GetDoAction();
}

UCSubAction* UCWeaponComponent::GetSubAction()
{
	CheckTrueResult(IsUnarmedMode(), nullptr);
	CheckFalseResult(!!DataAssets[(int32)Type], nullptr);

	return DataAssets[(int32)Type]->GetSubAction();
}

void UCWeaponComponent::SetUnarmedMode()
{
	GetEquipment()->Unequip();

	ChangeType(EWeaponType::Max);
}

void UCWeaponComponent::SetFistMode()
{
	CheckFalse(IsIdleMode());

	SetMode(EWeaponType::Fist);
}

void UCWeaponComponent::SetSwordMode()
{
	CheckFalse(IsIdleMode());

	SetMode(EWeaponType::Sword);
}

void UCWeaponComponent::SetHammerMode()
{
	CheckFalse(IsIdleMode());

	SetMode(EWeaponType::Hammer);
}

void UCWeaponComponent::SetWarpMode()
{
	CheckFalse(IsIdleMode());

	SetMode(EWeaponType::Warp);
}

void UCWeaponComponent::SetAroundMode()
{
	CheckFalse(IsIdleMode());

	SetMode(EWeaponType::Around);
}

void UCWeaponComponent::SetBowMode()
{
	CheckFalse(IsIdleMode());

	SetMode(EWeaponType::Bow);
}

void UCWeaponComponent::SetMode(EWeaponType InType)
{
	if (Type == InType)
	{
		SetUnarmedMode();

		return;
	}
	else if (IsUnarmedMode() == false)
	{
		GetEquipment()->Unequip();
	}

	if (!!DataAssets[(int32)InType])
	{
		DataAssets[(int32)InType]->GetEquipment()->Equip();

		ChangeType(InType);
	}
}

void UCWeaponComponent::ChangeType(EWeaponType InType)
{
	EWeaponType prevType = Type;
	Type = InType;

	if (OnWeaponTypeChange.IsBound())
		OnWeaponTypeChange.Broadcast(prevType, InType);
}

void UCWeaponComponent::DoAction()
{
	if (!!GetDoAction())
		GetDoAction()->DoAction();
}

void UCWeaponComponent::SubAction_Pressed()
{
	if (!!GetSubAction())
		GetSubAction()->Pressed();
}

void UCWeaponComponent::SubAction_Released()
{
	if (!!GetSubAction())
		GetSubAction()->Released();
}

변경사항 없음.

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CBTTaskNode_Equip 생성

 

새 C++ 클래스 - BTTaskNode - CBTTaskNode_Equip 생성

 

 

CBTTaskNode_Equip.h

#pragma once
#include "CoreMinimal.h"
#include "BehaviorTree/BTTaskNode.h"
#include "Components/CWeaponComponent.h"
#include "CBTTaskNode_Equip.generated.h"

UCLASS()
class U2212_06_API UCBTTaskNode_Equip : public UBTTaskNode
{
	GENERATED_BODY()

private:
	UPROPERTY(EditAnywhere, Category = "Type")
		EWeaponType Type;

public:
	UCBTTaskNode_Equip();

protected:
	virtual EBTNodeResult::Type ExecuteTask(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory) override;
	virtual void TickTask(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory, float DeltaSeconds) override;
};

 

 

 

 

CBTTaskNode_Equip.cpp

#include "BehaviorTree/CBTTaskNode_Equip.h"
#include "Global.h"
#include "Characters/CEnemy_AI.h"
#include "Characters/CAIController.h"
#include "Components/CStateComponent.h"
#include "Weapons/CEquipment.h"

UCBTTaskNode_Equip::UCBTTaskNode_Equip()
{
	NodeName = "Equip";

	bNotifyTick = true;
}

EBTNodeResult::Type UCBTTaskNode_Equip::ExecuteTask(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory)
{
	Super::ExecuteTask(OwnerComp, NodeMemory);

	ACAIController* controller = Cast<ACAIController>(OwnerComp.GetOwner());
	ACEnemy_AI* ai = Cast<ACEnemy_AI>(controller->GetPawn());

	UCWeaponComponent* weapon = CHelpers::GetComponent<UCWeaponComponent>(ai);
	CheckNullResult(weapon, EBTNodeResult::Failed);//weapon이 없다면 EBTNodeResult::Failed 리턴

	if (Type == weapon->GetWeaponType())//장착될 무기 == 현재 장착된 무기
		return EBTNodeResult::Succeeded;//새로 장착시킬 필요 없으니 바로 Succeeded를 리턴

	switch (Type)
	{
		case EWeaponType::Sword: weapon->SetSwordMode(); break;//Sword 장착
	}

	return EBTNodeResult::InProgress;//장착 동작이 나올 수 있도록 InProgress 리턴
}

void UCBTTaskNode_Equip::TickTask(UBehaviorTreeComponent& OwnerComp, uint8* NodeMemory, float DeltaSeconds)
{
	Super::TickTask(OwnerComp, NodeMemory, DeltaSeconds);

	ACAIController* controller = Cast<ACAIController>(OwnerComp.GetOwner());
	ACEnemy_AI* ai = Cast<ACEnemy_AI>(controller->GetPawn());

	UCWeaponComponent* weapon = CHelpers::GetComponent<UCWeaponComponent>(ai);//weapon을 가져온다.

	const bool* bEquipped = weapon->GetEquipment()->GetEquipped();

	UCStateComponent* state = CHelpers::GetComponent<UCStateComponent>(ai);
	if(state->IsIdleMode() && *bEquipped)
	{
		FinishLatentTask(OwnerComp, EBTNodeResult::Succeeded);

		return;
	}
}

 

 

 

 

CEquipment.h에 있는 bEquipped 정보를 가져오기 위해 아래의 코드를 사용하였다.

UCWeaponComponent* weapon = CHelpers::GetComponent<UCWeaponComponent>(ai);//weapon을 가져온다.

const bool* bEquipped = weapon->GetEquipment()->GetEquipped();

WeaponComponent 내의 GetEquipment() 함수 

→  CWeaponAsset.h 내의 GetEquipment() 함수로 CEquipment의 Equipment 

→  CEquipment.h의 GetEquipped() 함수로 &bEquipped 리턴 

 

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BT_Melee

 

 

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실행화면

 

 

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