[UE] FPS(일인칭 슈팅 게임)


Characters
	CAnimInstance.h .cpp CAnimInstance_Arms.h .cpp 생성 CPlayer.h .cpp
Utilities
	CHelpers.h CLog.h .cpp
Weapons
	CBullet.h .cpp CMagazine.h .cpp CWeapon.h .cpp CWeapon_AK47.h .cpp CWeapon_AR4.h .cpp CWeaponComponent.h .cpp
Widget
	CUserWidget_CrossHair.h .cpp CUserWidget_HUD.h .cpp
CGameMode.h .cpp Global.h CAnimNotifyState_Equip.h .cpp CAnimNotifyState_Reload.h .cpp

필요한 에셋 추가하기, 소켓 추가하기

SK_Mannequin_Arms 가져오기

Player Arm으로 사용할 메쉬를 가져온다.

SM_T4_Sight 가져오기

머터리얼 슬롯 - 엘리먼트0 - M_KA47_Pattern 할당

SK_KA47_Skeleton - 소켓 추가

DotSight 소켓 추가

SK_Mannequin_Arms_Skeleton - 소켓 추가

Rifle_AK47_RightHand 추가

Arm

CAnimInstance_Arms 생성

새 C++ 클래스 - AnimInstance - CAnimInstance_Arms 생성

CAnimInstance_Arms.h

#pragma once

#include "CoreMinimal.h"
#include "Animation/AnimInstance.h"
#include "Weapons/CWeaponComponent.h"
#include "CAnimInstance_Arms.generated.h"

UCLASS()
class U2212_04_API UCAnimInstance_Arms : public UAnimInstance
{
	GENERATED_BODY()

protected:
	UPROPERTY(BlueprintReadOnly, EditAnywhere, Category = "Weapons")
		EWeaponType WeaponType = EWeaponType::Max;

public:
	void NativeBeginPlay() override;
	void NativeUpdateAnimation(float DeltaSeconds) override;

private:
	UFUNCTION()
		void OnWeaponTypeChanged(EWeaponType InPrevType, EWeaponType InNewType);

private:
	class ACPlayer* OwnerCharacter;
	class UCWeaponComponent* Weapon;
};

CAnimInstance_Arms.cpp

#include "Character/CAnimInstance_Arms.h"
#include "Global.h"
#include "CPlayer.h"

void UCAnimInstance_Arms::NativeBeginPlay()
{
	Super::NativeBeginPlay();

	OwnerCharacter = Cast<ACPlayer>(TryGetPawnOwner());
	CheckNull(OwnerCharacter);

	Weapon = CHelpers::GetComponent<UCWeaponComponent>(OwnerCharacter);
	CheckNull(Weapon);

	Weapon->OnWeaponTypeChanged.AddDynamic(this, &UCAnimInstance_Arms::OnWeaponTypeChanged);
}

void UCAnimInstance_Arms::NativeUpdateAnimation(float DeltaSeconds)
{
	Super::NativeUpdateAnimation(DeltaSeconds);
	CheckNull(OwnerCharacter);

}

void UCAnimInstance_Arms::OnWeaponTypeChanged(EWeaponType InPrevType, EWeaponType InNewType)
{
	WeaponType = InNewType;
}

ABP_Player_Arms 생성

애니메이션 - 애니메이션 블루프린트 - 부모클래스: CAnimInstance_Arms, 스켈레톤: Skel_Mannequin_Arms -

ABP_Player_Arms 생성

AnimGraph

CPlayer

CPlayer.h

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "CPlayer.generated.h"

UCLASS()
class U2212_04_API ACPlayer : public ACharacter
{
	GENERATED_BODY()

private:
	UPROPERTY(EditDefaultsOnly, Category = "Camera")
		FVector2D PitchRange = FVector2D(-40, +40);

private:
	UPROPERTY(VisibleAnywhere)
		class USpringArmComponent* SpringArm;

	UPROPERTY(VisibleAnywhere)
		class UCameraComponent* Camera;

	UPROPERTY(VisibleAnywhere)
		class UStaticMeshComponent* Backpack;

	UPROPERTY(VisibleAnywhere)
		class USkeletalMeshComponent* Arms;

private:
	UPROPERTY(VisibleAnywhere)
		class UCWeaponComponent* Weapon;

public:
	FORCEINLINE UStaticMeshComponent* GetBackpack() { return Backpack; }
	FORCEINLINE USkeletalMeshComponent* GetArms() { return Arms; }

public:
	ACPlayer();

protected:
	virtual void BeginPlay() override;

public:	
	virtual void Tick(float DeltaTime) override;
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;

private:
	void OnMoveForward(float InAxisValue);
	void OnMoveRight(float InAxisValue);
	void OnHorizontalLook(float InAxisValue);
	void OnVerticalLook(float InAxisValue);

private:
	void OnRun();
	void OffRun();
};

변수 추가

class USkeletalMeshComponent* Arms;

인라인 함수 추가

FORCEINLINE UStaticMeshComponent* GetBackpack() { return Backpack; }
FORCEINLINE USkeletalMeshComponent* GetArms() { return Arms; }

CPlayer.cpp

#include "CPlayer.h"
#include "Global.h"
#include "CAnimInstance.h"
#include "CAnimInstance_Arms.h"
#include "Weapons/CWeaponComponent.h"
#include "GameFramework/SpringArmComponent.h"
#include "GameFramework/CharacterMovementComponent.h"
#include "Camera/CameraComponent.h"
#include "Components/CapsuleComponent.h"
#include "Components/InputComponent.h"
#include "Components/StaticMeshComponent.h"
#include "Components/SkeletalMeshComponent.h"
#include "Materials/MaterialInstanceDynamic.h"

ACPlayer::ACPlayer()
{
	PrimaryActorTick.bCanEverTick = true;

	CHelpers::CreateComponent<USpringArmComponent>(this, &SpringArm, "SpringArm", GetCapsuleComponent());
	CHelpers::CreateComponent<UCameraComponent>(this, &Camera, "Camera", SpringArm);
	CHelpers::CreateComponent<UStaticMeshComponent>(this, &Backpack, "Backpack", GetMesh(), "Backpack");
	CHelpers::CreateComponent<USkeletalMeshComponent>(this, &Arms, "Arms", Camera);

	CHelpers::CreateActorComponent<UCWeaponComponent>(this, &Weapon, "Weapon");

	USkeletalMesh* mesh;
	CHelpers::GetAsset<USkeletalMesh>(&mesh, "SkeletalMesh'/Game/Character/Mesh/SK_Mannequin.SK_Mannequin'");
	GetMesh()->SetSkeletalMesh(mesh);
	GetMesh()->SetRelativeLocation(FVector(0, 0, -90));
	GetMesh()->SetRelativeRotation(FRotator(0, -90, 0));

	
	TSubclassOf<UCAnimInstance> animInstance;
	CHelpers::GetClass<UCAnimInstance>(&animInstance, "AnimBlueprint'/Game/Player/ABP_Player.ABP_Player_C'");
	GetMesh()->SetAnimClass(animInstance);


	GetCharacterMovement()->MaxWalkSpeed = 400;


	SpringArm->SetRelativeLocation(FVector(0, 0, 60));
	SpringArm->TargetArmLength = 200;
	SpringArm->bUsePawnControlRotation = true;
	SpringArm->bEnableCameraLag = true;

	UStaticMesh* staticMesh;
	CHelpers::GetAsset<UStaticMesh>(&staticMesh, "StaticMesh'/Game/FPS_Weapon_Bundle/Backpack/Backpack.Backpack'");
	Backpack->SetStaticMesh(staticMesh);
	Backpack->SetCollisionProfileName("NoCollision");

	CHelpers::GetAsset<USkeletalMesh>(&mesh, "SkeletalMesh'/Game/Character_Arms/Mesh/SK_Mannequin_Arms.SK_Mannequin_Arms'");
	Arms->SetSkeletalMesh(mesh);
	Arms->SetRelativeLocation(FVector(-14.25f, -5.85f, -156.935f));
	Arms->SetRelativeRotation(FRotator(-0.5f, -11.85f, -1.2f));
	Arms->SetVisibility(false); //안 보이도록 기본값 세팅

	TSubclassOf<UCAnimInstance_Arms> armsAnimInstance;
	CHelpers::GetClass<UCAnimInstance_Arms>(&armsAnimInstance, "AnimBlueprint'/Game/Player/ABP_Player_Arms.ABP_Player_Arms_C'"); 
	Arms->SetAnimClass(armsAnimInstance);   

}

void ACPlayer::BeginPlay()
{
	Super::BeginPlay(); //Super가 BP의 BeginPlay를 콜한다.

	GetController<APlayerController>()->PlayerCameraManager->ViewPitchMin = PitchRange.X; //각 제한 걸기
	GetController<APlayerController>()->PlayerCameraManager->ViewPitchMax = PitchRange.Y; //각 제한 걸기
}

void ACPlayer::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

void ACPlayer::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	PlayerInputComponent->BindAxis("MoveForward", this, &ACPlayer::OnMoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &ACPlayer::OnMoveRight);
	PlayerInputComponent->BindAxis("HorizontalLook", this, &ACPlayer::OnHorizontalLook);
	PlayerInputComponent->BindAxis("VerticalLook", this, &ACPlayer::OnVerticalLook);

	PlayerInputComponent->BindAction("Run", EInputEvent::IE_Pressed, this, &ACPlayer::OnRun);
	PlayerInputComponent->BindAction("Run", EInputEvent::IE_Released, this, &ACPlayer::OffRun);

	PlayerInputComponent->BindAction("AR4", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::SetAR4Mode);//Object를 Weapon으로 받는다.
	PlayerInputComponent->BindAction("AK47", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::SetAK47Mode);//Object를 Weapon으로 받는다.

	PlayerInputComponent->BindAction("Aim", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::Begin_Aim);
	PlayerInputComponent->BindAction("Aim", EInputEvent::IE_Released, Weapon, &UCWeaponComponent::End_Aim);

	PlayerInputComponent->BindAction("Fire", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::Begin_Fire);
	PlayerInputComponent->BindAction("Fire", EInputEvent::IE_Released, Weapon, &UCWeaponComponent::End_Fire);

	PlayerInputComponent->BindAction("AutoFire", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::ToggleAutoFire);

	PlayerInputComponent->BindAction("Reload", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::Reload);

}

void ACPlayer::OnMoveForward(float InAxisValue)
{
	FRotator rotator = FRotator(0, GetControlRotation().Yaw, 0);
	FVector direction = FQuat(rotator).GetForwardVector();

	AddMovementInput(direction, InAxisValue);
}

void ACPlayer::OnMoveRight(float InAxisValue)
{
	FRotator rotator = FRotator(0, GetControlRotation().Yaw, 0);
	FVector direction = FQuat(rotator).GetRightVector();

	AddMovementInput(direction, InAxisValue);
}

void ACPlayer::OnHorizontalLook(float InAxisValue)
{
	AddControllerYawInput(InAxisValue);
}

void ACPlayer::OnVerticalLook(float InAxisValue)
{
	AddControllerPitchInput(InAxisValue);
}

void ACPlayer::OnRun()
{
	GetCharacterMovement()->MaxWalkSpeed = 600;
}

void ACPlayer::OffRun()
{
	GetCharacterMovement()->MaxWalkSpeed = 400;
}

Arms를 카메라에 붙여 생성한다.

CHelpers::CreateComponent<USkeletalMeshComponent>(this, &Arms, "Arms", Camera);

Arms 기본값 세팅

CHelpers::GetAsset<USkeletalMesh>(&mesh, "SkeletalMesh'/Game/Character_Arms의 레퍼런스 경로'");
Arms->SetSkeletalMesh(mesh);
Arms->SetRelativeLocation(FVector(-14.25f, -5.85f, -156.935f));
Arms->SetRelativeRotation(FRotator(-0.5f, -11.85f, -1.2f));
Arms->SetVisibility(false);

Arms의 AnimInstance 설정

TSubclassOf<UCAnimInstance_Arms> armsAnimInstance;
CHelpers::GetClass<UCAnimInstance_Arms>(&armsAnimInstance, "ABP_Player 레퍼런스 경로'");
Arms->SetAnimClass(armsAnimInstance);

위와 같이 CPlayer에 Arms를 생성하고 정보를 기입하고 컴파일을 실행한다.

BP_CPlayer

Arms - 렌더링 - 테스트를 하기 위해 Visible을 체크하여 Arms가 화면에 보이도록 만들어준다. 테스트가 끝난 후 체크를 해제해준다.

Animation - Anim Class - ABP_Player_Arms_C 할당

메시 - Skeletal Mesh - SK_Mannequin_Arms 할당

머터리얼 - 엘리먼트0 - < M_UE4Man_Body_Inst 할당

Weapon

CWeapon

CWeapon.h

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "CWeapon.generated.h"

//직렬화 해야하는 struct는 클래스 사이에 선언해야 한다.
USTRUCT()
struct FWeaponAimData
{
	GENERATED_BODY()

public:
	UPROPERTY(EditAnywhere)
		float TargetArmLength;

	UPROPERTY(EditAnywhere)
		FVector SocketOffset;

	UPROPERTY(EditAnywhere)
		float FieldOfView;

	UPROPERTY(EditAnywhere)
		bool bEnableCameraLag;

public:
	void SetData(class ACharacter* InOwner);
	void SetDataByNoneCurve(class ACharacter* InOwner);

};

//abstract를 쓰면 Unreal Editor에서 추상 베이스 클래스로 취급하겠다는 의미. 추상이되면 배치시킬 수 없다.
UCLASS(abstract) 
class U2212_04_API ACWeapon : public AActor
{
	GENERATED_BODY()

protected:
	UPROPERTY(EditDefaultsOnly, Category = "Equip")
		FName HolsterSocketName;

	UPROPERTY(EditDefaultsOnly, Category = "Equip")
		class UAnimMontage* EquipMontage;

	UPROPERTY(EditDefaultsOnly, Category = "Equip")
		float EquipMontage_PlayRate;

	UPROPERTY(EditDefaultsOnly, Category = "Equip")
		FName RightHandSocketName;

	UPROPERTY(EditDefaultsOnly, Category = "Equip")
		FVector LeftHandLocation;

protected:
	UPROPERTY(EditDefaultsOnly, Category = "Aim")
		FWeaponAimData BaseData;

	UPROPERTY(EditDefaultsOnly, Category = "Aim")
		FWeaponAimData AimData;

	UPROPERTY(EditDefaultsOnly, Category = "Aim")
		class UCurveFloat* AimCurve;

	UPROPERTY(EditDefaultsOnly, Category = "Aim")
		float AimingSpeed = 200;

protected:
	UPROPERTY(EditDefaultsOnly, Category = "Hit")
		float HitDistance = 3000;

	UPROPERTY(EditDefaultsOnly, Category = "Hit")
		class UMaterialInstanceConstant* HitDecal;

	UPROPERTY(EditDefaultsOnly, Category = "Hit")
		class UParticleSystem* HitParticle;

protected:
	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		class UParticleSystem* FlashParticle;

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		class UParticleSystem* EjectParticle;

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		class USoundWave* FireSound;

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		float RecoilAngle; //Cone의 각도

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		TSubclassOf<class UMatineeCameraShake> CameraShakeClass;

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		float AutoFireInterval; //연사 시간간격

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		float RecoilRate; //반동률

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		float SpreadSpeed; //얼마나 빨리 벌려질거냐

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		float MaxSpreadAlignment; //얼마나 넓게 벌려질거냐

	UPROPERTY(EditDefaultsOnly, Category = "Fire")
		TSubclassOf<class ACBullet> BulletClass;

protected:
	UPROPERTY(EditDefaultsOnly, Category = "UI")
		TSubclassOf<class UCUserWidget_CrossHair> CrossHairClass; //CrossHair

protected:
	UPROPERTY(EditDefaultsOnly, Category = "Magazine")
		uint8 MaxMagazineCount;

	UPROPERTY(EditDefaultsOnly, Category = "Magazine")
		class UAnimMontage* ReloadMontage;

	UPROPERTY(EditDefaultsOnly, Category = "Magazine")
		float ReloadMontage_PlayRate;

	UPROPERTY(EditDefaultsOnly, Category = "Magazine")
		FName MagazineBoneName; //탄창이 숨겨졌다 보이게 바뀌는 BoneName

	UPROPERTY(EditDefaultsOnly, Category = "Magazine")
		TSubclassOf<class ACMagazine> MagazineClass;

	UPROPERTY(EditDefaultsOnly, Category = "Magazine")
		FName MagazineSocketName;

private:
	UPROPERTY(VisibleAnywhere)
		class USceneComponent* Root;

protected:
	UPROPERTY(VisibleAnywhere)
		class USkeletalMeshComponent* Mesh;

private:
	UPROPERTY(VisibleAnywhere)
		class UTimelineComponent* Timeline;

public:
	FORCEINLINE bool IsInAim() { return bInAim; }
	FORCEINLINE bool IsAutoFire() { return bAutoFire; }
	FORCEINLINE FVector GetLeftHandLocation() { return LeftHandLocation; }

	FORCEINLINE uint8 GetCurrMagazineCount() { return CurrMagazineCount; } //현재 탄 수
	FORCEINLINE uint8 GetMaxMagazineCount() { return MaxMagazineCount; } //최대 탄 수

public:	
	ACWeapon();

protected:
	virtual void BeginPlay() override;

public:	
	virtual void Tick(float DeltaTime) override;

public:
	bool CanEquip();
	void Equip();
	virtual void Begin_Equip();
	virtual void End_Equip();

	bool CanUnequip();
	void Unequip();

public:
	bool CanAim();
	virtual void Begin_Aim();
	virtual void End_Aim();

private:
	UFUNCTION()
		void OnAiming(float Output); //조준

public:
	bool CanFire();
	void Begin_Fire();
	void End_Fire();

private:
	UFUNCTION()
		void OnFiring(); //연사

public:
	void ToggleAutoFire(); //연사 On Off 토글

public:
	bool CanReload();
	void Reload();
	
	void Eject_Magazine();
	void Spawn_Magazine();
	void Load_Magazine();
	void End_Reload();

private:
	bool bEquipping;
	bool bInAim;
	bool bFiring;
	bool bReload;
	bool bAutoFire = true;

protected:
	class ACPlayer* Owner;

private:
	FTimerHandle AutoFireHandle; //타이머 핸들 추가

protected: //자식에서 CrossHair 접근하게 하기위해 protected로 설정 
	class UCUserWidget_CrossHair* CrossHair;

private:
	float CurrSpreadRadius;
	float LastAddSpreadTime; 

private:
	uint8 CurrMagazineCount; //현재 탄 수

private:
	class ACMagazine* Magazine;
};

자식에서 재정의할 수 있도록 가상함수로 변경한다.

void Begin_Aim(); →변경 virtual void Begin_Aim();
void End_Aim(); →변경 virtual void End_Aim();
CWeapon_AK47에서 Begin_Aim()와 End_Aim()를 재정의한다.

자식에서 접근이 가능하도록 private을 protected로 변경

private →변경 protected: class UCUserWidget_CrossHair* CrossHair;

CWeapon.cpp

#include "CPlayer.h"
#include "Global.h"
#include "CAnimInstance.h"
#include "CAnimInstance_Arms.h"
#include "Weapons/CWeaponComponent.h"
#include "GameFramework/SpringArmComponent.h"
#include "GameFramework/CharacterMovementComponent.h"
#include "Camera/CameraComponent.h"
#include "Components/CapsuleComponent.h"
#include "Components/InputComponent.h"
#include "Components/StaticMeshComponent.h"
#include "Components/SkeletalMeshComponent.h"
#include "Materials/MaterialInstanceDynamic.h"

ACPlayer::ACPlayer()
{
	PrimaryActorTick.bCanEverTick = true;

	CHelpers::CreateComponent<USpringArmComponent>(this, &SpringArm, "SpringArm", GetCapsuleComponent());
	CHelpers::CreateComponent<UCameraComponent>(this, &Camera, "Camera", SpringArm);
	CHelpers::CreateComponent<UStaticMeshComponent>(this, &Backpack, "Backpack", GetMesh(), "Backpack");
	CHelpers::CreateComponent<USkeletalMeshComponent>(this, &Arms, "Arms", Camera);

	CHelpers::CreateActorComponent<UCWeaponComponent>(this, &Weapon, "Weapon");

	USkeletalMesh* mesh;
	CHelpers::GetAsset<USkeletalMesh>(&mesh, "SkeletalMesh'/Game/Character/Mesh/SK_Mannequin.SK_Mannequin'");
	GetMesh()->SetSkeletalMesh(mesh);
	GetMesh()->SetRelativeLocation(FVector(0, 0, -90));
	GetMesh()->SetRelativeRotation(FRotator(0, -90, 0));

	
	TSubclassOf<UCAnimInstance> animInstance;
	CHelpers::GetClass<UCAnimInstance>(&animInstance, "AnimBlueprint'/Game/Player/ABP_Player.ABP_Player_C'");
	GetMesh()->SetAnimClass(animInstance);


	GetCharacterMovement()->MaxWalkSpeed = 400;


	SpringArm->SetRelativeLocation(FVector(0, 0, 60));
	SpringArm->TargetArmLength = 200;
	SpringArm->bUsePawnControlRotation = true;
	SpringArm->bEnableCameraLag = true;

	UStaticMesh* staticMesh;
	CHelpers::GetAsset<UStaticMesh>(&staticMesh, "StaticMesh'/Game/FPS_Weapon_Bundle/Backpack/Backpack.Backpack'");
	Backpack->SetStaticMesh(staticMesh);
	Backpack->SetCollisionProfileName("NoCollision");

	CHelpers::GetAsset<USkeletalMesh>(&mesh, "SkeletalMesh'/Game/Character_Arms/Mesh/SK_Mannequin_Arms.SK_Mannequin_Arms'");
	Arms->SetSkeletalMesh(mesh);
	Arms->SetRelativeLocation(FVector(-14.25f, -5.85f, -156.935f));
	Arms->SetRelativeRotation(FRotator(-0.5f, -11.85f, -1.2f));
	Arms->SetVisibility(false); //안 보이도록 기본값 세팅

	TSubclassOf<UCAnimInstance_Arms> armsAnimInstance;
	CHelpers::GetClass<UCAnimInstance_Arms>(&armsAnimInstance, "AnimBlueprint'/Game/Player/ABP_Player_Arms.ABP_Player_Arms_C'"); 
	Arms->SetAnimClass(armsAnimInstance);   

}

void ACPlayer::BeginPlay()
{
	Super::BeginPlay(); //Super가 BP의 BeginPlay를 콜한다.

	GetController<APlayerController>()->PlayerCameraManager->ViewPitchMin = PitchRange.X; //각 제한 걸기
	GetController<APlayerController>()->PlayerCameraManager->ViewPitchMax = PitchRange.Y; //각 제한 걸기
}

void ACPlayer::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

void ACPlayer::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	PlayerInputComponent->BindAxis("MoveForward", this, &ACPlayer::OnMoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &ACPlayer::OnMoveRight);
	PlayerInputComponent->BindAxis("HorizontalLook", this, &ACPlayer::OnHorizontalLook);
	PlayerInputComponent->BindAxis("VerticalLook", this, &ACPlayer::OnVerticalLook);

	PlayerInputComponent->BindAction("Run", EInputEvent::IE_Pressed, this, &ACPlayer::OnRun);
	PlayerInputComponent->BindAction("Run", EInputEvent::IE_Released, this, &ACPlayer::OffRun);

	PlayerInputComponent->BindAction("AR4", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::SetAR4Mode);//Object를 Weapon으로 받는다.
	PlayerInputComponent->BindAction("AK47", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::SetAK47Mode);//Object를 Weapon으로 받는다.

	PlayerInputComponent->BindAction("Aim", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::Begin_Aim);
	PlayerInputComponent->BindAction("Aim", EInputEvent::IE_Released, Weapon, &UCWeaponComponent::End_Aim);

	PlayerInputComponent->BindAction("Fire", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::Begin_Fire);
	PlayerInputComponent->BindAction("Fire", EInputEvent::IE_Released, Weapon, &UCWeaponComponent::End_Fire);

	PlayerInputComponent->BindAction("AutoFire", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::ToggleAutoFire);

	PlayerInputComponent->BindAction("Reload", EInputEvent::IE_Pressed, Weapon, &UCWeaponComponent::Reload);

}

void ACPlayer::OnMoveForward(float InAxisValue)
{
	FRotator rotator = FRotator(0, GetControlRotation().Yaw, 0);
	FVector direction = FQuat(rotator).GetForwardVector();

	AddMovementInput(direction, InAxisValue);
}

void ACPlayer::OnMoveRight(float InAxisValue)
{
	FRotator rotator = FRotator(0, GetControlRotation().Yaw, 0);
	FVector direction = FQuat(rotator).GetRightVector();

	AddMovementInput(direction, InAxisValue);
}

void ACPlayer::OnHorizontalLook(float InAxisValue)
{
	AddControllerYawInput(InAxisValue);
}

void ACPlayer::OnVerticalLook(float InAxisValue)
{
	AddControllerPitchInput(InAxisValue);
}

void ACPlayer::OnRun()
{
	GetCharacterMovement()->MaxWalkSpeed = 600;
}

void ACPlayer::OffRun()
{
	GetCharacterMovement()->MaxWalkSpeed = 400;
}

변경사항 없음.

CWeapon_AK47

CWeapon_AK47.h

#pragma once

#include "CoreMinimal.h"
#include "Weapons/CWeapon.h"
#include "CWeapon_AK47.generated.h"

UCLASS()
class U2212_04_API ACWeapon_AK47 : public ACWeapon
{
	GENERATED_BODY()

private:
	UPROPERTY(EditDefaultsOnly, Category = "Equip")
		FName LeftHandSocketName;

private:
	UPROPERTY(VisibleAnywhere)
		class UStaticMeshComponent* Sight;

public:
	ACWeapon_AK47();

public:
	void Begin_Equip() override;
	void End_Equip() override;
	
	void Begin_Aim() override;
	void End_Aim() override;
};

변수 생성

class UStaticMeshComponent* Sight;

함수 재정의

void Begin_Aim() override;
void End_Aim() override;

CWeapon_AK47.cpp

#include "Weapons/CWeapon_AK47.h"
#include "Global.h"
#include "CMagazine.h"
#include "CWeaponComponent.h"
#include "Character/CPlayer.h" 
#include "Components/StaticMeshComponent.h"
#include "Components/SkeletalMeshComponent.h"
#include "Animation/AnimMontage.h"
#include "Camera/CameraShake.h"
#include "Widgets/CUserWidget_CrossHair.h"

ACWeapon_AK47::ACWeapon_AK47()
{
	USkeletalMesh* mesh;
	CHelpers::GetAsset<USkeletalMesh>(&mesh, "SkeletalMesh'/Game/FPS_Weapon_Bundle/Weapons/Meshes/AR4/SK_AR4.SK_AR4'");
	Mesh->SetSkeletalMesh(mesh);

	CHelpers::CreateComponent<UStaticMeshComponent>(this, &Sight, "Sight", Mesh, "DotSight");

	UStaticMesh* staticMesh;
	CHelpers::GetAsset<UStaticMesh>(&staticMesh, "StaticMesh'/Game/FPS_Weapon_Bundle/Weapons/Meshes/Accessories/SM_T4_Sight.SM_T4_Sight'");
	Sight->SetStaticMesh(staticMesh);
	Sight->SetRelativeScale3D(FVector(1, 0.95f, 1));
	Sight->SetCollisionProfileName("NoCollision");//AK47와 T4_Sight가 충돌되지 않도록 T4_Sight를 No Collision으로 만들어준다. 

	//AK
	{
		LeftHandSocketName = "Rifle_AK47_LeftHand";
	}

	//Equip
	{
		HolsterSocketName = "Rifle_AK47_Holster";
		CHelpers::GetAsset<UAnimMontage>(&EquipMontage, "AnimMontage'/Game/Character/Animations/Rifle_Equip_AK47_Montage.Rifle_Equip_AK47_Montage'");
		EquipMontage_PlayRate = 2.0f;
		RightHandSocketName = "Rifle_AK47_RightHand";
		LeftHandLocation = FVector(-35, 15.5f, 7);
	}

	//Aim
	{
		BaseData.bEnableCameraLag = true;
		BaseData.TargetArmLength = 200;
		BaseData.SocketOffset = FVector(0, 50, 15);
		BaseData.FieldOfView = 90;

		AimData.bEnableCameraLag = false;
		AimData.TargetArmLength = 30;
		AimData.SocketOffset = FVector(-55, 0, 10);
		AimData.FieldOfView = 55;
	}

	//Fire
	{
		RecoilAngle = 0.75f;
		CHelpers::GetClass<UMatineeCameraShake>(&CameraShakeClass, "Blueprint'/Game/Weapons/BP_CameraShake_AR4.BP_CameraShake_AR4_C'");
		AutoFireInterval = 0.1f; //연사 시간간격(=연사 속도)
		RecoilRate = 0.05f;
		SpreadSpeed = 2.0f;
		MaxSpreadAlignment = 2.0f;
	}

	//UI
	{
		CHelpers::GetClass<UCUserWidget_CrossHair>(&CrossHairClass, "WidgetBlueprint'/Game/Widgets/WB_CrossHair.WB_CrossHair_C'");
	}

	//Magazine
	{
		MaxMagazineCount = 30; //최대 탄 수 = 30으로 설정
		CHelpers::GetAsset<UAnimMontage>(&ReloadMontage, "AnimMontage'/Game/Character/Animations/Rifle_Reload_Montage.Rifle_Reload_Montage'");
		ReloadMontage_PlayRate = 1.5f;
		MagazineBoneName = "b_gun_mag";
		CHelpers::GetClass<ACMagazine>(&MagazineClass, "Blueprint'/Game/Weapons/BP_CMagazine_AK47.BP_CMagazine_AK47_C'");
		MagazineSocketName = "Rifle_Magazine";
	}
}

void ACWeapon_AK47::Begin_Equip()
{
	if (LeftHandSocketName.IsValid())
		CHelpers::AttachTo(this, Owner->GetMesh(), LeftHandSocketName); //AK47(=this)이 Owner->GetMesh()의 LeftHandSockName으로 붙는다.
}

void ACWeapon_AK47::End_Equip()
{
	Super::Begin_Equip(); //부모 Begin_Equip()이 콜 되어 오른손으로 간다.
	Super::End_Equip(); //부모 End_Equip()이 콜 되어 마무리된다.
}

void ACWeapon_AK47::Begin_Aim()
{
	Super::Begin_Aim();

	if (!!CrossHair)
		CrossHair->SetVisibility(ESlateVisibility::Hidden);

	Owner->GetMesh()->SetVisibility(false);
	Owner->GetBackpack()->SetVisibility(false);
	Owner->GetArms()->SetVisibility(true);

	CHelpers::AttachTo(this, Owner->GetArms(), RightHandSocketName);

	CHelpers::GetComponent<UCWeaponComponent>(Owner)->OnWeaponAim_Arms_Begin.Broadcast(this);
}

void ACWeapon_AK47::End_Aim()
{
	Super::End_Aim();

	if (!!CrossHair)
		CrossHair->SetVisibility(ESlateVisibility::Visible);

	Owner->GetMesh()->SetVisibility(true);
	Owner->GetBackpack()->SetVisibility(true);
	Owner->GetArms()->SetVisibility(false);

	CHelpers::AttachTo(this, Owner->GetMesh(), RightHandSocketName);

	CHelpers::GetComponent<UCWeaponComponent>(Owner)->OnWeaponAim_Arms_End.Broadcast();
}

Weapon에서 정의한 Begin_Aim()와 End_Aim() 재정의

void ACWeapon_AK47::Begin_Aim()
void ACWeapon_AK47::End_Aim()

CWeaponComponent

CWeaponComponent.h

#pragma once

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

//BlueprintType을 써서 BP에서 공개되게 한다. 추후에 Animation BP에서 다루어야 한다. 추후에 switch로 Weapon Blending을 할 것이다.
UENUM(BlueprintType) 
enum class EWeaponType : uint8
{
	AR4, AK47, Pistol, Max,
};
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FWeaponTypeChanged, EWeaponType, InPrevType, EWeaponType, InNewType);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FWeaponAim_Arms_Begin, class ACWeapon*, InThisWeapon);
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FWeaponAim_Arms_End);

UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
class U2212_04_API UCWeaponComponent : public UActorComponent
{
	GENERATED_BODY()

private:
	UPROPERTY(EditAnywhere, Category = "Settings")
		TArray<TSubclassOf<class ACWeapon>> WeaponClasses; //Spawn시킬 때 class 타입을 TSubclassOf로 명시해준다. TArray는 그것에 대한 배열이다.

	UPROPERTY(EditAnywhere, Category = "Settings")
		TSubclassOf<class UCUserWidget_HUD> HUDClass;

public:
	FORCEINLINE bool IsUnarmedMode() { return Type == EWeaponType::Max; }//Max는 아무것도 선택안한 상황.
	FORCEINLINE bool IsAR4Mode() { return Type == EWeaponType::AR4; }
	FORCEINLINE bool IsAK47Mode() { return Type == EWeaponType::AK47; }
	FORCEINLINE bool IsPistolMode() { return Type == EWeaponType::Pistol; }

public:	
	// Sets default values for this component's properties
	UCWeaponComponent();

protected:
	// Called when the game starts
	virtual void BeginPlay() override;

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

private:
	class ACWeapon* GetCurrWeapon();//현재 무기를 리턴

public:
	void SetUnarmedMode();
	void SetAR4Mode();
	void SetAK47Mode();
	//void SetPistolMode();

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

public:
	void Begin_Equip();
	void End_Equip();

public:
	void Begin_Aim();
	void End_Aim();

public:
	void Begin_Fire();
	void End_Fire();

public:
	bool IsInAim();
	FVector GetLeftHandLocation();

public:
	void ToggleAutoFire(); //연사 토글

public:
	void Reload(); //재장전
	void Eject_Magazine();
	void Spawn_Magazine();
	void Load_Magazine();
	void End_Reload();


private:
	UFUNCTION()
		void On_Begin_Aim(class ACWeapon* InThisWeapon);

	UFUNCTION()
		void On_Begin_End();

public:
	FWeaponTypeChanged OnWeaponTypeChanged;
	FWeaponAim_Arms_Begin OnWeaponAim_Arms_Begin;
	FWeaponAim_Arms_End OnWeaponAim_Arms_End;

private:
	EWeaponType Type = EWeaponType::Max; //Max는 아무것도 선택안한 상황.

private:
	class ACPlayer* Owner; //플레이어 변수
	TArray<class ACWeapon*> Weapons; //무기 배열 변수
	class UCUserWidget_HUD* HUD;
};

Delegate 추가

DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FWeaponTypeChanged, EWeaponType, InPrevType, EWeaponType, InNewType);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FWeaponAim_Arms_Begin, class ACWeapon*, InThisWeapon);
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FWeaponAim_Arms_End);

변수 추가

FWeaponTypeChanged OnWeaponTypeChanged;
FWeaponAim_Arms_Begin OnWeaponAim_Arms_Begin;
FWeaponAim_Arms_End OnWeaponAim_Arms_End;

CWeaponComponent.cpp

#include "Weapons/CWeaponComponent.h"
#include "Global.h"
#include "CWeapon.h"
#include "Character/CPlayer.h"
#include "CWeaponComponent.h" //여기
#include "Widgets/CUserWidget_HUD.h"

UCWeaponComponent::UCWeaponComponent()
{
	PrimaryComponentTick.bCanEverTick = true;

	CHelpers::GetClass<UCUserWidget_HUD>(&HUDClass, "WidgetBlueprint'/Game/Widgets/WB_HUB.WB_HUB_C'");
}

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

	Owner = Cast<ACPlayer>(GetOwner());
	CheckNull(Owner);

	FActorSpawnParameters params;
	params.Owner = Owner;
	params.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;

	//받은 타입을 Spawn 시킨다.
	for(TSubclassOf<ACWeapon> weaponClass : WeaponClasses)
	{
		if(!!weaponClass)
		{
			ACWeapon* weapon = Owner->GetWorld()->SpawnActor<ACWeapon>(weaponClass, params);//weaponClass 타입으로 Spawn시킨다.
			Weapons.Add(weapon);
		}
	}

	if(!!HUDClass)
	{
		HUD = CreateWidget<UCUserWidget_HUD, APlayerController>(Owner->GetController<APlayerController>(), HUDClass);
		HUD->AddToViewport(); //Viewport에 추가
		HUD->SetVisibility(ESlateVisibility::Hidden);//숨김
	}

	OnWeaponAim_Arms_Begin.AddDynamic(this, &UCWeaponComponent::On_Begin_Aim);
	OnWeaponAim_Arms_End.AddDynamic(this, &UCWeaponComponent::On_Begin_End);
}

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

	if (!!HUD)
	{
		if (!!GetCurrWeapon()) //현재 무기가 있다면
			GetCurrWeapon()->IsAutoFire() ? HUD->OnAutoFire() : HUD->OffAutoFire(); //연사 3항 연산자 OnOff 스위치
		else //현재 무기가 없다면
			HUD->OffAutoFire(); //연사 해제

		if(!!GetCurrWeapon()) //현재 무기가 있다면
		{
			uint8 currCount = GetCurrWeapon()->GetCurrMagazineCount(); //현재 무기의 현재 탄 수
			uint8 maxCount = GetCurrWeapon()->GetMaxMagazineCount(); //현재 무기의 최대 탄 수

			HUD->UpdateMagazine(currCount, maxCount); //HUD에 탄 수 업데이트
		}
	}

}

ACWeapon* UCWeaponComponent::GetCurrWeapon()
{
	CheckTrueResult(IsUnarmedMode(), nullptr);//IsUnarmedMode가 true면 무기 리턴해줄수 없으므로 nullptr로 리턴 

	return Weapons[(int32)Type]; //BP의 to int //현재 선택된 Weapon을 리턴해준다.
}

void UCWeaponComponent::SetUnarmedMode()
{
	CheckFalse(GetCurrWeapon()->CanUnequip());//현재 무기가 해제될 수 있는지 체크

	GetCurrWeapon()->Unequip(); //무기 해제
	ChangeType(EWeaponType::Max);//현재 무기를 Max로 바꾸어줌(Max는 아무것도 선택안한 상태)

	HUD->SetVisibility(ESlateVisibility::Hidden);//무기가 없을때 화면에서 숨겨준다.
}

void UCWeaponComponent::SetAR4Mode()
{
	SetMode(EWeaponType::AR4);
}

void UCWeaponComponent::SetAK47Mode()
{
	SetMode(EWeaponType::AK47);
}

void UCWeaponComponent::SetMode(EWeaponType InType)
{
	if(Type == InType) //현재 무기와 장착하려는 무기가 같은 경우
	{
		SetUnarmedMode(); //무기 장착 해제

		return; //무기 장착 해제 후 리턴
	}
	else if (IsUnarmedMode() == false)
	{
		CheckFalse(GetCurrWeapon()->CanUnequip());//현재 무기가 해제될 수 있는지 체크

		GetCurrWeapon()->Unequip(); //무기 해제
	}

	CheckNull(Weapons[(int32)InType]); //장착될 무기가 있는지 체크
	CheckFalse(Weapons[(int32)InType]->CanEquip());//장착될 무기가 장착될 수 있는 상황인지 체크

	Weapons[(int32)InType]->Equip(); // 무기 장착

	ChangeType(InType); //무기 변경 알려줌

	if (!!HUD)
		HUD->SetVisibility(ESlateVisibility::Visible);//화면에 보이도록 켜줌.

}

void UCWeaponComponent::ChangeType(EWeaponType InType)
{
	EWeaponType type = Type;
	Type = InType; //기존의 무기 타입에서 바뀐 무기 타입을 넣어줌.

	if (OnWeaponTypeChanged.IsBound())
		OnWeaponTypeChanged.Broadcast(type, InType);//기존 무기 타입, 바뀐 무기 타입
	
}

void UCWeaponComponent::Begin_Equip()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->Begin_Equip();
}

void UCWeaponComponent::End_Equip()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->End_Equip();
}

void UCWeaponComponent::Begin_Aim()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->Begin_Aim();
}

void UCWeaponComponent::End_Aim()  
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->End_Aim();
}

void UCWeaponComponent::Begin_Fire()
{
	CheckNull(GetCurrWeapon());
	CheckFalse(GetCurrWeapon()->CanFire());

	GetCurrWeapon()->Begin_Fire();
}

void UCWeaponComponent::End_Fire()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->End_Fire();
}

bool UCWeaponComponent::IsInAim()
{
	CheckNullResult(GetCurrWeapon(), false);

	return GetCurrWeapon()->IsInAim();
}

FVector UCWeaponComponent::GetLeftHandLocation()
{
	CheckNullResult(GetCurrWeapon(), FVector::ZeroVector);

	return GetCurrWeapon()->GetLeftHandLocation();
}

void UCWeaponComponent::ToggleAutoFire()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->ToggleAutoFire();
}

void UCWeaponComponent::Reload()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->Reload();
}

void UCWeaponComponent::Eject_Magazine()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->Eject_Magazine();
}

void UCWeaponComponent::Spawn_Magazine()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->Spawn_Magazine();
}

void UCWeaponComponent::Load_Magazine()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->Load_Magazine();
}

void UCWeaponComponent::End_Reload()
{
	CheckNull(GetCurrWeapon());

	GetCurrWeapon()->End_Reload();
}

void UCWeaponComponent::On_Begin_Aim(ACWeapon * InThisWeapon)
{
	for (ACWeapon* weapon : Weapons)
	{
		if (weapon == InThisWeapon)
			continue;

		weapon->SetHidden(true);
	}
}

void UCWeaponComponent::On_Begin_End()
{
	for (ACWeapon* weapon : Weapons)
		weapon->SetHidden(false);
}

실행화면

ABP: Animation Blueprint
AN: Blueprint Class AnimNotify
ANS: Blueprint Class - AnimNotifyState

AO: Aim Offset

BP: Blueprint Class
BS: Blend Space

BF: Blueprint Function Library
CS: Matinee Camera Shake
E: Enum 열거형
DT: Data Table
F: 구조체

I: Blueprint Interface

WB: Widget Bluepprint

UE2212_04

	Level - LEVEL
Character	Animation	Rifle
		Unarmed
		Rifle_Equip_Montage Rifle_Reload_Montage
	BlendSpaces	AO_Rifle_Aim AO_Rifle_Idle BS_Rifle BS_Rifle_Aim BS_Unarme
	Materials	MaterialLayers
	Materials	M_UE4Man_Body M_UE4Man_ChestLogo
	Mesh	SK_Mannequin SK_MAnnequin_PhysicsAsset Skel_Mannequin

	Textures	UE4_LOGO_CARD UE4_Mannequin__normals UE4_Mannequin_MAT_MASKA UE4Man_Logo_N
	Weapons	Elven Bow
		Greate Hammer
		Sword
Effects	Materials
	Meshes
	Texture
	P_Eject_bullet P_Impact_Default P_Muzzleflash
Environment	Materials	Textures
	Meshes
	Obstacle
FPS_Weapon_Bundle	Backpack	backpact M_Backpack
	Weapons	Material
		Meshes
		Textures
	SM_AR4_Mag SM_AR4_Mag_Empty
Materials	Texture
Materials	M_Cursor M_Cursor_Inst M_Decal M_Mesh M_White_Inst M_Red_Inst M_Green_Inst M_Blue_Inst M_UE4Man_Body_Inst M_UE4Man_ChesLogo_Inst
Meshes	Cone_2 Cube_2 Cylinder_2 Sphere_2
Player	ABP_Player BP_Player
Sounds	S_RifleShoot
Textures	Crosshair
Weapons	BP_CameraShake_AR4 BP_CBullet BP_CMagazine_AK47 BP_CMagazine_AR4 BP_CWeapon_AK47 BP_CWeapon_AR4
Weapons
Widgets	NotoSansKR-Black NotoSansKR-Black_Font WB_CrossHair WB_HUB

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[UE] FPS(일인칭 슈팅 게임)

필요한 에셋 추가하기, 소켓 추가하기

SK_Mannequin_Arms 가져오기

SM_T4_Sight 가져오기

SK_KA47_Skeleton - 소켓 추가

SK_Mannequin_Arms_Skeleton - 소켓 추가

Arm

CAnimInstance_Arms 생성

ABP_Player_Arms 생성

CPlayer

Weapon

CWeapon

CWeapon_AK47

CWeaponComponent

실행화면

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필요한 에셋 추가하기, 소켓 추가하기

SK_Mannequin_Arms 가져오기

SM_T4_Sight 가져오기

SK_KA47_Skeleton - 소켓 추가

SK_Mannequin_Arms_Skeleton - 소켓 추가

Arm

CAnimInstance_Arms 생성

ABP_Player_Arms 생성

CPlayer

Weapon

CWeapon

CWeapon_AK47

CWeaponComponent

실행화면

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