UE4 SubAction Warp

Decal을 사용하여 Warp 스킬을 구현해 볼 것이다.

1. Sword를 복사해서 Warp로 이름을 변경해준다.

1. 충돌체 등 다 필요하지 않으므로, 삭제하고 Decal를 추가해준다.

2. 바닥을 향하도록 Y축을 -90도 해준다.

1. Warp를 선택해서 넣어주고, 나머지는 구현 후 다시 넣어줄 것이다.

 

1. Weapon을 선택하고, Warp를 추가해준다.

---

#include "Characters/CPlayer.h"
#include "Global.h"
#include "CAnimInstance.h"
#include "GameFramework/SpringArmComponent.h"
#include "GameFramework/CharacterMovementComponent.h"
#include "Camera/CameraComponent.h"
#include "Components/SkeletalMeshComponent.h"
#include "Components/InputComponent.h"
#include "Components/CWeaponComponent.h"
#include "Components/CMontagesComponent.h"
#include "Components/CMovementComponent.h"

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

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

}

1. Player로가서 Warp 버튼을 추가해준다.

---

1. 장착, 해제에 노드를 연결해준다.

1. Player 자리 바로 밑에 Decal이 나오는걸 확인할 수 있다.

---

#pragma once

#include "CoreMinimal.h"
#include "UObject/NoExportTypes.h"
#include "Weapons/CWeaponStructures.h"
#include "CDoAction.generated.h"

UCLASS(Abstract) // 객체화 되면 안되므로 Abstract
class U2212_06_API UCDoAction : public UObject
{
	GENERATED_BODY()
	
public:
	UCDoAction(); // 생성자
    
	virtual void Tick(float InDeltaTime) {}

};

1. DoAction에가서 Warp에 사용할 Tick을 생성해준다.

#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"

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

	// SubAction 있다면 콜해주기.
	if (!!GetDoAction())
		GetDoAction()->Tick(DeltaTime);

	// SubAction 있다면 콜해주기.
	if (!!GetSubAction())
		GetSubAction()->Tick(DeltaTime);
}

1. WeaponComponent로가서 Tick에 DoAction을 추가해준다.

---

 

 

 

1. DoAction을 상속받아서 클래스를 생성해준다.

#pragma once

#include "CoreMinimal.h"
#include "Weapons/CDoAction.h"
#include "CDoAction_Warp.generated.h"

UCLASS(Blueprintable)
class U2212_06_API UCDoAction_Warp : public UCDoAction
{
	GENERATED_BODY()

public:
    UCDoAction_Warp();

    virtual void BeginPlay
    (
        class ACAttachment* InAttachment,
        class UCEquipment* InEquipment,
        class ACharacter* InOwner,
        const TArray<FDoActionData>& InDoActionData,
        const TArray<FHitData>& InHitData
    );

    void Tick(float InDeltaTime) override;

public:
    void DoAction() override;
    void Begin_DoAction() override;

private:
    // 클릭될 위치 구해서 return 주는 용도
     bool GetCursorLocationAndRotation(FVector& OutLocation, FRotator& OutRotation);

private:
    class APlayerController* PlayerController;
    class UDecalComponent* Decal;

private:
    FVector MoveToLocation;
	
};

#include "Weapons/DoActions/CDoAction_Warp.h"
#include "Global.h"
#include "GameFramework/Character.h"
#include "GameFramework/PlayerController.h"
#include "Components/CStateComponent.h"
#include "Components/DecalComponent.h"
#include "Components/CapsuleComponent.h"
#include "Weapons/CAttachment.h"

UCDoAction_Warp::UCDoAction_Warp()
{

}

void UCDoAction_Warp::BeginPlay(ACAttachment* InAttachment, UCEquipment* InEquipment, ACharacter* InOwner, const TArray<FDoActionData>& InDoActionData, const TArray<FHitData>& InHitData)
{
	Super::BeginPlay(InAttachment, InEquipment, InOwner, InDoActionData, InHitData);

	Decal = CHelpers::GetComponent<UDecalComponent>(InAttachment);
	PlayerController = OwnerCharacter->GetController<APlayerController>();
}

void UCDoAction_Warp::Tick(float InDeltaTime)
{
	Super::Tick(InDeltaTime);

}

void UCDoAction_Warp::DoAction()
{
	CheckFalse(DoActionDatas.Num() > 0);
	CheckFalse(State->IsIdleMode());

	Super::DoAction();

	// 액션 실행
	DoActionDatas[0].DoAction(OwnerCharacter);

}

void UCDoAction_Warp::Begin_DoAction()
{
	Super::Begin_DoAction();

}

bool UCDoAction_Warp::GetCursorLocationAndRotation(FVector& OutLocation, FRotator& OutRotation)
{
	
}

1. 액션동작이 나오는지 먼저 확인해 본다.

1. BP로 생성해준다.

 

1. DoAction Class 선택해주고, 아래에 알맞은 정보들을 선택 및 설정해준다.

1. 사용할 몽타주로 들어가서 노티파이들을 알맞은 자리에 넣어준다.

1. 동작과 파티클이 잘 나오는걸 확인할 수 있다.

---

#pragma once

#include "CoreMinimal.h"
#include "UObject/NoExportTypes.h"
#include "Weapons/CWeaponStructures.h"
#include "CDoAction.generated.h"

UCLASS(Abstract) // 객체화 되면 안되므로 Abstract
class U2212_06_API UCDoAction : public UObject
{
	GENERATED_BODY()

protected:
	bool bInAction;

}

#include "Weapons/CDoAction.h"
#include "Global.h"
#include "CAttachment.h"
#include "CEquipment.h"
#include "GameFramework/Character.h"
#include "Components/CStateComponent.h"
#include "Components/CMovementComponent.h"

void UCDoAction::DoAction()
{
	bInAction = true;
	// 구조체에있는 DoAction을 직접적으로 콜할게 아니다.
	// 각 각 맞는 상황에서 맞는 동작을 콜하게 될 것이므로, SetActionMode로 처리.
	State->SetActionMode();
}

void UCDoAction::End_DoAction()
{
	bInAction = false;
	bBeginAction = false;

	State->SetIdleMode(); // Idle로 동작 돌려주기

	Movement->Move(); // 정상적으로 움직이게
	Movement->DisableFixedCamera(); // 카메라도 돌려준다.
}

1. 액션 중일때 Decal이 움직이는걸 방지하기 위해 bool 변수를 하나 생성해준다.

2. 액션 들어가면 true, 끝나면 false로 만들어준다.

---

#pragma once

#include "CoreMinimal.h"
#include "Weapons/CDoAction.h"
#include "CDoAction_Warp.generated.h"

UCLASS(Blueprintable)
class U2212_06_API UCDoAction_Warp : public UCDoAction
{
	GENERATED_BODY()

public:
    UCDoAction_Warp();

    virtual void BeginPlay
    (
        class ACAttachment* InAttachment,
        class UCEquipment* InEquipment,
        class ACharacter* InOwner,
        const TArray<FDoActionData>& InDoActionData,
        const TArray<FHitData>& InHitData
    );

    void Tick(float InDeltaTime) override;

public:
    void DoAction() override;
    void Begin_DoAction() override;

private:
    // 클릭될 위치 구해서 return 주는 용도
     bool GetCursorLocationAndRotation(FVector& OutLocation, FRotator& OutRotation);

private:
    class APlayerController* PlayerController;
    class UDecalComponent* Decal;

private:
    FVector MoveToLocation; // 이동하기 위한 변수
	
};

#include "Weapons/DoActions/CDoAction_Warp.h"
#include "Global.h"
#include "GameFramework/Character.h"
#include "GameFramework/PlayerController.h"
#include "Components/CStateComponent.h"
#include "Components/DecalComponent.h"
#include "Components/CapsuleComponent.h"
#include "Weapons/CAttachment.h"

UCDoAction_Warp::UCDoAction_Warp()
{


}

void UCDoAction_Warp::BeginPlay(ACAttachment* InAttachment, UCEquipment* InEquipment, ACharacter* InOwner, const TArray<FDoActionData>& InDoActionData, const TArray<FHitData>& InHitData)
{
	Super::BeginPlay(InAttachment, InEquipment, InOwner, InDoActionData, InHitData);

	Decal = CHelpers::GetComponent<UDecalComponent>(InAttachment);
	PlayerController = OwnerCharacter->GetController<APlayerController>();

}

void UCDoAction_Warp::Tick(float InDeltaTime)
{
	Super::Tick(InDeltaTime);

	// 위치, 회전 초기화
	FVector location = FVector::ZeroVector;
	FRotator rotation = FRotator::ZeroRotator;

	// false라면 hit가 된게 아님.
	if (GetCursorLocationAndRotation(location, rotation) == false)
	{
		Decal->SetVisibility(false);

		return;
	}

	// 액션중이라면 밑에 수행할 필요가 없으므로, return
	if (bInAction)
		return;

	Decal->SetVisibility(true);

	Decal->SetWorldLocation(location);
	Decal->SetWorldRotation(rotation);

}

void UCDoAction_Warp::DoAction()
{
	CheckFalse(DoActionDatas.Num() > 0);
	CheckFalse(State->IsIdleMode());

	Super::DoAction();

	FRotator rotation;
	if (GetCursorLocationAndRotation(MoveToLocation, rotation)) // MoveToLocation에 기록을 해놓는다.
	{
		// 높이를 보정해 놓지 않으면 땅에 묻히는 버그가 발생하므로, 일정 크기만큼 올려준다.
		float height = OwnerCharacter->GetCapsuleComponent()->GetScaledCapsuleHalfHeight();
		MoveToLocation = FVector(MoveToLocation.X, MoveToLocation.Y, MoveToLocation.Z + height);

		// 이동할 회전 방향에서 Yaw값만 사용.
		float yaw = UKismetMathLibrary::FindLookAtRotation(OwnerCharacter->GetActorLocation(), MoveToLocation).Yaw;
		OwnerCharacter->SetActorRotation(FRotator(0, yaw, 0)); // 회전방향 yaw 돌려주기.

	}
	// 아니라면 끝.
	else
		return;

	// 액션 실행
	DoActionDatas[0].DoAction(OwnerCharacter);

}

void UCDoAction_Warp::Begin_DoAction()
{
	Super::Begin_DoAction();

	OwnerCharacter->SetActorLocation(MoveToLocation); // Warp 이동
	MoveToLocation = FVector::ZeroVector; // 다시 없애준다.
}

bool UCDoAction_Warp::GetCursorLocationAndRotation(FVector& OutLocation, FRotator& OutRotation)
{
	CheckNullResult(PlayerController, false);

	FHitResult hitResult;
	// Hit되고, 보이는걸 전부 추적할 것이므로, Channel을 사용
	PlayerController->GetHitResultUnderCursorByChannel(ETraceTypeQuery::TraceTypeQuery1, false, hitResult);
	CheckFalseResult(hitResult.bBlockingHit, false); // hit가 되질 않았다면 false

	OutLocation = hitResult.Location;
	OutRotation = hitResult.ImpactNormal.Rotation();

	return true; // hit가 됐다면 그대로 return

}

1. Decal로 이동하는 코드를 작성.

2. 액션 중일때 Decal이 움직이지 못하도록, bool변수를 활용하여 막아준다.

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https://www.youtube.com/watch?v=gsaeHYKNIHs