언리얼 C++ 튜토리얼 002.CameraActor

https://docs.unrealengine.com/latest/KOR/Programming/Tutorials/AutoCamera/index.html

기본 튜토리얼 코드

// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
 
#include "GameFramework/Actor.h"
#include "CameraDirector.generated.h"
 
UCLASS()
class HOWTO_AUTOCAMERA_API ACameraDirector : public AActor
{
    GENERATED_BODY()
public:
    // Sets default values for this actor's properties
    ACameraDirector();
    // Called when the game starts or when spawned
    virtual void BeginPlay() override;
    // Called every frame
    virtual void Tick(float DeltaSeconds) override;
private:
    UPROPERTY(EditAnyWhere, Category = "Cam")
    AActor* CameraOne;
    UPROPERTY(EditAnyWhere, Category = "Cam")
    AActor* CameraTwo;
    float TimeToNextCameraChange;
};

// Fill out your copyright notice in the Description page of Project Settings.
 
#include "HowTo_AutoCamera.h"
#include "CameraDirector.h"
#include "Kismet/GameplayStatics.h"
 
// Sets default values
ACameraDirector::ACameraDirector()
{
     // 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;
}
 
// Called when the game starts or when spawned
void ACameraDirector::BeginPlay()
{
    Super::BeginPlay();
}
 
// Called every frame
void ACameraDirector::Tick( float DeltaTime )
{
    Super::Tick( DeltaTime );
 
    const float TimeBetweenCameraChanges = 2.0f;
    const float SmoothBlendTime = 0.75f;
    TimeToNextCameraChange -= DeltaTime;
 
    if (TimeToNextCameraChange <= 0.0f)
    {
        TimeToNextCameraChange += TimeBetweenCameraChanges;
        // 로컬 플레이어의 콘트롤을 처리하는 액터를 찾는다.
        APlayerController* OurPlayerController = UGameplayStatics::GetPlayerController(this, 0);
        if (OurPlayerController)
        {
            if ((OurPlayerController->GetViewTarget() != CameraOne) && (CameraOne != nullptr))
            {
                // 1번 카메라로 즉시 컷해 들어간다.
                OurPlayerController->SetViewTarget(CameraOne);
            }
            else if ((OurPlayerController->GetViewTarget() != CameraTwo) && (CameraTwo != nullptr))
            {
                // 2번 카메라로 부드럽게 전환한다.
                OurPlayerController->SetViewTargetWithBlend(CameraTwo, SmoothBlendTime);
            }
        }
    }
}