https://www.udemy.com/share/100YVuA0sbd1tXRng=/
이거보고 공부했읍니다.
가격도 매우 저렴합니다 언리얼 블로그에서 링크통해가면 더 할인도 되요(영어주의)
리플리케이트로 움직이는 액터의
헤더파일
// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"
#include "Engine/StaticMeshActor.h"
#include "MovingPlatform.generated.h"
/**
*
*/
UCLASS()
class TEST_API AMovingPlatform : public AStaticMeshActor
{
GENERATED_BODY()
public:
AMovingPlatform();
virtual void Tick(float DeltaTime) override;
virtual void BeginPlay() override;
UPROPERTY(EditAnywhere)//블프나 에디터상에서 모두 편집가능
float Speed = 20;
UPROPERTY(EditAnywhere, Meta = (MakeEditWidget = true))//에디터상 위젯에 나타냄
FVector TargetLocation;
void AddActiveTrigger(); //이동
void RemoveActiveTrigger(); //해제
private:
FVector GlobalTargetLocation;
FVector GlobalStartLocation;
UPROPERTY(EditAnywhere)
int ActiveTriggers = 0; //트리거 발동조건
};
구현부
// Fill out your copyright notice in the Description page of Project Settings.
#include "MovingPlatform.h"
//움직이는 스태틱메쉬
AMovingPlatform::AMovingPlatform() {
//틱 이벤트 사용
PrimaryActorTick.bCanEverTick = true;
//이물체가 이동성을 가지는지 설정 Enum형
SetMobility(EComponentMobility::Movable);
}
void AMovingPlatform::BeginPlay()
{
Super::BeginPlay();
if (HasAuthority()) {
//서버와 클라이언트를 동기화
SetReplicates(true);
SetReplicateMovement(true);
}
GlobalStartLocation = GetActorLocation();
GlobalTargetLocation = GetTransform().TransformPosition(TargetLocation);
}
void AMovingPlatform::Tick(float DeltaTime) {
//부모로부터 가상함수를 재정의 하고있는지 확인
Super::Tick(DeltaTime);
if(ActiveTriggers >0 ) //트리거 발동되었을때.
//참이면 서버, 거짓이면 단일 클라이언트일때를 분기
if (HasAuthority()){
//현재액터의 위치 변수저장하기
FVector location = GetActorLocation();
//틱마다 x축으로 델타시간*스피드 만큼 이동
float JourneyLength = (GlobalTargetLocation - GlobalStartLocation).Size(); //목표지점과 첫지점의 거리
float JourneyTravelled = (location - GlobalStartLocation).Size(); //현재내지점과 목표지점의 거리
if (JourneyTravelled >= JourneyLength) //목표지점 첫지점을 바꿈
{
FVector Swap = GlobalStartLocation;
GlobalStartLocation = GlobalTargetLocation;
GlobalTargetLocation = Swap;
}
//방향벡터구하기
FVector Direction = (GlobalTargetLocation - GlobalStartLocation).GetSafeNormal();
//이동
location += Speed * DeltaTime * Direction;
SetActorLocation(location);
}
}
void AMovingPlatform::AddActiveTrigger()
{
ActiveTriggers++;
}
void AMovingPlatform::RemoveActiveTrigger()
{
if (ActiveTriggers > 0) {
ActiveTriggers--;
}
}
버튼이눌렸을때 액터가 움직이도록 하는 액터의 헤더파일
#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "PlatformTrigger.generated.h"
UCLASS()
class TEST_API APlatformTrigger : public AActor
{
GENERATED_BODY()
public:
// Sets default values for this actor's properties
APlatformTrigger();
protected:
// Called when the game starts or when spawned
virtual void BeginPlay() override;
public:
// Called every frame
virtual void Tick(float DeltaTime) override;
private:
UPROPERTY(VisibleAnywhere)
class UBoxComponent* TriggerVolume;
UFUNCTION() // 겹쳤을때 함수
void OnOverlapBegin(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult);
UFUNCTION() // 나왔을대 함수
void OnOverlapEnd(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex);
UPROPERTY(EditAnywhere) //트리거가 발동되었을때 움직이는 플랫폼의 배열
TArray<class AMovingPlatform*> PlatformsToTrigger;
};
// Fill out your copyright notice in the Description page of Project Settings.
#include "PlatformTrigger.h"
#include "Components/BoxComponent.h"
#include "MovingPlatform.h"
// Sets default values
APlatformTrigger::APlatformTrigger()
{
// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
PrimaryActorTick.bCanEverTick = true;
TriggerVolume = CreateDefaultSubobject<UBoxComponent>(FName("TriggerVolume"));
if(!ensure(TriggerVolume != nullptr)) return;
RootComponent = TriggerVolume;
TriggerVolume->OnComponentBeginOverlap.AddDynamic(this, &APlatformTrigger::OnOverlapBegin);
TriggerVolume->OnComponentEndOverlap.AddDynamic(this, &APlatformTrigger::OnOverlapEnd);
}
// Called when the game starts or when spawned
void APlatformTrigger::BeginPlay()
{
Super::BeginPlay();
}
// Called every frame
void APlatformTrigger::Tick(float DeltaTime)
{
Super::Tick(DeltaTime);
}
void APlatformTrigger::OnOverlapBegin(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
UE_LOG(LogTemp, Warning, TEXT("Activated"));
for (AMovingPlatform* Platform : PlatformsToTrigger) //배열에있는 트리거들 모두순회
{//이동트리거발동
Platform->AddActiveTrigger();
}
}
void APlatformTrigger::OnOverlapEnd(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex)
{
UE_LOG(LogTemp, Warning, TEXT("Deactivated"));
for (AMovingPlatform* Platform : PlatformsToTrigger)
{//이동트리거제거
Platform->RemoveActiveTrigger();
}
}
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