【C++为Actor创建组件】

示例是为角色Actor创建摄像机悬吊和摄像机。

使用示例

BlasterCharacter.h

#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "BlasterCharacter.generated.h"

UCLASS()
class BLASTER_API ABlasterCharacter : public ACharacter
{
    GENERATED_BODY()

public:
    ABlasterCharacter();
    virtual void Tick(float DeltaTime) override;
    virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;
protected:
    virtual void BeginPlay() override;

private:
    UPROPERTY(VisibleAnywhere,Category = Camera)
    class USpringArmComponent* CameraBoom;

    UPROPERTY(VisibleAnywhere, Category = Camera)
    class UCameraComponent* FollowCamera;

public:
};

BlasterCharacter.cpp

#include "BlasterCharacter.h"
#include "GameFramework/SpringArmComponent.h"
#include "Camera/CameraComponent.h"

ABlasterCharacter::ABlasterCharacter()
{
    PrimaryActorTick.bCanEverTick = true;

    // 摄像机悬吊
    CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
    CameraBoom->SetupAttachment(GetMesh());// 附着在网格
    CameraBoom->TargetArmLength = 600.f;// 吊杆长度6米
    CameraBoom->bUsePawnControlRotation = true;// 使用棋子控制器进行旋转

    // 悬吊挂上摄像机
    FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
    FollowCamera->SetupAttachment(CameraBoom, USpringArmComponent::SocketName);// 附着在悬吊
    FollowCamera->bUsePawnControlRotation = false;// 不使用棋子控制器控制
}

void ABlasterCharacter::BeginPlay()
{
    Super::BeginPlay();
}

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

void ABlasterCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
    Super::SetupPlayerInputComponent(PlayerInputComponent);
}