[UE] Around 스킬 구현하기

 

 

 

목차

 

 

---

 

 

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
	U2212_06
		Characters
		CAnimInstance.h .cpp CEnemy.h .cpp  CPlayer.h .cpp ICharacter.h .cpp
		Components
		CMontagesComponent.h .cpp  CMovementComponent.h .cpp  CStateComponent.h .cpp CStatusComponent.h .cpp   CWeaponComponent.h .cpp
		Notifies
		CAnimNotifyState_BeginAction.h .cpp  CAnimNotify_CameraShake.h .cpp  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
		Utilities
		CHelper.h CLog.h .cpp
		Weapons
		CAura.h .cpp CCamerModifier.h .cpp CGhostTrail.h .cpp CRotate_Object.h .cpp CThornObject.h .cpp 생성 CDoAction_Around.h .cpp CDoAction_Combo.h .cpp CDoAction_Warp.h .cpp CSubAction_Around.h .cpp 생성 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

 

 

 

 

 

Around 스킬 구현하기

 

 

---

 

Around_SubAction_Montage 생성

 

 

---

 

 

CSubAction_Around 생성

 

새 C++ 클래스 생성 - CSubAction - CSubAction_Around 생성

 

 

CSubAction_Around.h

#pragma once
#include "CoreMinimal.h"
#include "Weapons/CSubAction.h"
#include "Weapons/CWeaponStructures.h"
#include "CSubAction_Around.generated.h"
 
UCLASS(Blueprintable)
class U2212_06_API UCSubAction_Around : public UCSubAction
{
	GENERATED_BODY()
 
private:
	UPROPERTY(EditDefaultsOnly, Category = "FallObject")
		TSubclassOf<class ACThornObject> ObjectClass;
 
	UPROPERTY(EditDefaultsOnly, Category = "FallObject")
		FVector ObjectLocation;//Spawn시킬 위치
 
private:
	UPROPERTY(EditDefaultsOnly, Category = "Action")
		FDoActionData ActionData;
 
public:
	UCSubAction_Around();
 
public:
	virtual void Pressed() override;
 
	virtual void Begin_SubAction_Implementation() override;
	virtual void End_SubAction_Implementation() override;
};

 

 

 

CSubAction_Around.cpp

#include "Weapons/SubActions/CSubAction_Around.h"
#include "Global.h"
#include "GameFramework/Character.h"
#include "Components/CStateComponent.h"
#include "Components/CMovementComponent.h"
#include "Weapons/AddOns/CThornObject.h"
 
UCSubAction_Around::UCSubAction_Around()
{
 
}
 
void UCSubAction_Around::Pressed()
{
	Super::Pressed();
 
	CheckTrue(State->IsSubActionMode());
	State->OnSubActionMode();
 
	ActionData.DoAction(Owner);
}
 
void UCSubAction_Around::Begin_SubAction_Implementation()
{
	Super::Begin_SubAction_Implementation();
 
	FActorSpawnParameters params;
	params.Owner = Owner;
	params.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
 
	FTransform transform;
 
	FVector ownerLocation = Owner->GetActorLocation();
	ownerLocation += Owner->GetActorRotation().RotateVector(ObjectLocation);
 
	transform.SetLocation(ownerLocation);
 
	Owner->GetWorld()->SpawnActor<ACThornObject>(ObjectClass, transform, params);
}
 
void UCSubAction_Around::End_SubAction_Implementation()
{
	Super::End_SubAction_Implementation();
 
	State->OffSubActionMode();
	State->SetIdleMode();
	Movement->Move();
}

 

 

 

 

BP_CSubAction_Around 생성

---

 

 

 

CThornObject

 

새 C++ 클래스 생성 - Actor- CThornObject 생성

 

 

CThornObject.h

#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "NiagaraDataInterfaceExport.h"
#include "Weapons/CWeaponStructures.h"
#include "CThornObject.generated.h"
 
UCLASS()
class U2212_06_API ACThornObject
	: public AActor, public INiagaraParticleCallbackHandler
{
	GENERATED_BODY()
 
private:
	UPROPERTY(EditDefaultsOnly, Category = "Hit")
		FHitData HitData;
 
	UPROPERTY(EditDefaultsOnly, Category = "Niagara")
		class UStaticMesh* NiagaraMesh;//나이아가라 매쉬
 
	UPROPERTY(EditDefaultsOnly, Category = "Niagara")
		FRotator NiagaraMeshRotation;//회전값
 
	UPROPERTY(EditDefaultsOnly, Category = "Collision")
		class UFXSystemAsset* CollisionEffect;//충돌 했을때 이펙트
 
	UPROPERTY(EditDefaultsOnly, Category = "Collision")
		FTransform CollisionEffectTransform;//충돌했을때 보정 위치값
 
private:
	UPROPERTY(VisibleDefaultsOnly)
		class USceneComponent* Root;
 
	UPROPERTY(VisibleDefaultsOnly)
		class UNiagaraComponent* Niagara;
 
public:	
	ACThornObject();
 
protected:
	virtual void BeginPlay() override;
 
public:
	void ReceiveParticleData_Implementation(const TArray<FBasicParticleData>& Data, UNiagaraSystem* NiagaraSystem);
 
private:
	UFUNCTION()
		void OnSystemFinished(class UNiagaraComponent* PSystem);
 
private:
	FVector BoxExtent;//Finished 되었을 때 계산할 Box
};

 

 

 

CThornObject.cpp

#include "Weapons/AddOns/CThornObject.h"
#include "Global.h"
#include "NiagaraComponent.h"
#include "GameFramework/Character.h"
 
ACThornObject::ACThornObject()
{
	CHelpers::CreateComponent<USceneComponent>(this, &Root, "Root");//Root 생성
	CHelpers::CreateComponent<UNiagaraComponent>(this, &Niagara, "Niagara", Root);//나이아가라 컴포넌트 생성
}
 
void ACThornObject::BeginPlay()
{
	Super::BeginPlay();
 
	Niagara->SetNiagaraVariableObject("Collision", this);
	Niagara->OnSystemFinished.AddDynamic(this, &ACThornObject::OnSystemFinished);
 
	if (!!NiagaraMesh)//NiagaraMesh가 있다면
	{
		FBox box = NiagaraMesh->GetBoundingBox();//NiagaraMesh 충돌체 사이즈
		BoxExtent = (box.Min - box.Max).GetAbs() * 0.5f;//부피로 전환해서 사용.
	}
}
 
void ACThornObject::ReceiveParticleData_Implementation(const TArray<FBasicParticleData>& Data, UNiagaraSystem* NiagaraSystem)
{
	CheckFalse(Data.Num() > 0);
 
	//박스 추적 //static을 사용하는이유?
	//매 프레임 마다 Tick 결과 데이터가 매번 할당되고 지워져서 stack으로 계속 쌓인다. stack 데이터가 커지는걸 방지하기 위해 static으로 사용한다. static은 한 번 할당하면 제거가 일어나지 않기 때문에 유리하다. 계속 반복 할당되어야 되는것들은 static으로 사용하면 좋다.
	static TArray<AActor*> ignores;
	ignores.AddUnique(GetOwner());
 
	static FHitResult hitResult;
	for(int32 i = Data.Num() - 1; i >= 0; i--)//거꾸로 사용한 이유? 중간에 먼저 삭제되는 경우 TArray가 땡겨져서 문제가 발생할 수 있으므로 거꾸로 처리한다.
	{
		FVector position = Data[i].Position + GetActorLocation();
		FVector scale = Data[i].Velocity * BoxExtent;
 
		UKismetSystemLibrary::BoxTraceSingleByProfile(GetWorld(), position, position, scale, NiagaraMeshRotation, "Pawn", false, ignores, EDrawDebugTrace::ForOneFrame, hitResult, true);//Pawn 추적, 복합충돌 false,
 
		if (hitResult.bBlockingHit)
		{
			if (!!CollisionEffect)
			{
				FTransform transform = CollisionEffectTransform;
				transform.AddToTranslation(hitResult.Location);
 
				CHelpers::PlayEffect(GetWorld(), CollisionEffect, transform);
			}
 
			ACharacter* character = Cast<ACharacter>(hitResult.GetActor());
			if (!!character)
				HitData.SendDamage(Cast<ACharacter>(GetOwner()), this, character);
		}
	}
 
}
 
void ACThornObject::OnSystemFinished(UNiagaraComponent* PSystem)
{
	Destroy();//나이아가라를 제거한다.
}

 

 

 

BP_CThornObject 생성

---

 

 

 

 

DA_Around에  BP_CSubAction_Around 할당

 

Sub Action Class: BP_CSubAction_Around 할당

 

 

 

---

 

 

 

실행화면

 

 

 

---

 

 

 

 

나이아가라 이펙트 수정하기

 

---

 

 

NS_Thorn_Projectile  가져오기 + 수정하기

 

 

 

25개를 떨어뜨리기 위해서 Spawn Count 25 설정.

 

Initial Mesh Orientation 0.0, 0.0, 1.0 설정.

 

Box Location을 추가한 후 박스 사이즈 설정.

 

Gravity는 Velocity 항목보다 위에 위치해야 한다.

 

Export Particle Data to Blueprint 추가

• Export Particle Data to Blueprint는 데이터를 빼올때 사용한다.
• Condition To Export Data 체크
• Collision 연결

 

---

 

 

NS_Projectile_Hit  가져오기 + 수정하기

 

---

 

 

실행화면

 

---