Widget in World

#include "EmptyActor.h"
#include "Components/SphereComponent.h"
#include "Components/StaticMeshComponent.h"
#include "DrawDebugHelpers.h"
#include "Blueprint/UserWidget.h"
#include "Components/WidgetComponent.h

AEmptyActor::AEmptyActor(const FObjectInitializer& ObjectInitializer)
{
    PrimaryActorTick.bCanEverTick = true;

    USceneComponent* SceneComponent = ObjectInitializer.CreateDefaultSubobject<USceneComponent>(this, TEXT("RootComponent"));
    SceneComponent->SetMobility(EComponentMobility::Movable);
    SetRootComponent(SceneComponent);

    USphereComponent* SphereComponent = CreateDefaultSubobject<USphereComponent>(TEXT("SphereComponent"));
    SphereComponent->InitSphereRadius(10.0f);
    SphereComponent->SetCollisionProfileName(TEXT("Pawn"));
    SphereComponent->SetupAttachment(RootComponent);

    //1번 방식 - 생성자에서 Widget 추가
    UWidgetComponent* Widget = CreateDefaultSubobject<UWidgetComponent>(TEXT("TargetWidget"));
    Widget->SetupAttachment(RootComponent);
    Widget->SetWidgetSpace(EWidgetSpace::Screen);

    static ConstructorHelpers::FClassFinder<UUserWidget> UI_WIDGET(TEXT("/Game/blueprint/BP_MyText_Widget.BP_MyText_Widget_C"));

    if (UI_WIDGET.Succeeded())
    {
        Widget->SetWidgetClass(UI_WIDGET.Class);
        Widget->SetDrawSize(FVector2D(200.0f, 34.0f));  //이것 중요하다... 안하면 화면 전체로 그려 좌표가 이상하다.
    } 
}

void AEmptyActor::BeginPlay()
{
    Super::BeginPlay();
   
    UWorld* World = GetWorld();
    if (World)
    {
        float Radius = 10.0f;
        FVector Center = GetActorLocation();
        DrawDebugSphere(World, Center, Radius, 16, FColor(181, 0, 0), true, -1, 0, 1.0f);
    }
}

void AEmptyActor::Tick(float DeltaTime)
{
    Super::Tick(DeltaTime);
}

#include "EmptyActor.h"
#include "Components/SphereComponent.h"
#include "Components/StaticMeshComponent.h"
#include "DrawDebugHelpers.h"
#include "Blueprint/UserWidget.h"
#include "Components/WidgetComponent.h

AEmptyActor::AEmptyActor(const FObjectInitializer& ObjectInitializer)
{
    PrimaryActorTick.bCanEverTick = true;

    USceneComponent* SceneComponent = ObjectInitializer.CreateDefaultSubobject<USceneComponent>(this, TEXT("RootComponent"));
    SceneComponent->SetMobility(EComponentMobility::Movable);
    SetRootComponent(SceneComponent);

    USphereComponent* SphereComponent = CreateDefaultSubobject<USphereComponent>(TEXT("SphereComponent"));
    SphereComponent->InitSphereRadius(10.0f);
    SphereComponent->SetCollisionProfileName(TEXT("Pawn"));
    SphereComponent->SetupAttachment(RootComponent);

    //2번 방식 - BeginPlay에서 Widget 추가
    UWidgetComponent* Widget = CreateDefaultSubobject<UWidgetComponent>(TEXT("TargetWidget"));
    Widget->SetupAttachment(RootComponent);
    Widget->SetWidgetSpace(EWidgetSpace::Screen); 
}

void AEmptyActor::BeginPlay()
{
    Super::BeginPlay();
   
    UWorld* World = GetWorld();
    if (World)
    {
        float Radius = 10.0f;
        FVector Center = GetActorLocation();
        DrawDebugSphere(World, Center, Radius, 16, FColor(181, 0, 0), true, -1, 0, 1.0f);
    }

    //2번 방식 - BeginPlay에서 Widget 추가
    UWidgetComponent* Widget = this->FindComponentByClass<UWidgetComponent>();

    if (Widget && Widget->GetName() == TEXT("TargetWidget"))
    {
        FStringClassReference WidgetRef(TEXT("/Game/blueprint/BP_MyText_Widget.BP_MyText_Widget_C"));

        if (UClass* WidgetClass = WidgetRef.TryLoadClass<UUserWidget>())
        {
            UUserWidget* UserWidget = CreateWidget<UUserWidget>(GetWorld(), WidgetClass);
            Widget->SetWidgetClass(UserWidget->GetClass());
            Widget->SetDrawSize(FVector2D(200.0f, 34.0f));  //이것 중요하다... 안하면 화면 전체로 그려 좌표가 이상하다.
        }
    }
}

void AEmptyActor::Tick(float DeltaTime)
{
    Super::Tick(DeltaTime);
}