UE中创建Actor添加组件初始化（UEC++个人学习笔记）

在ue中创建actorc++类,在actor的.h文件中添加五个组件

又由上到下的作用分别为：

获取下SceneComponent,用于操作其Transform等相应接口。

获取静态模型组件。

获取盒子碰撞组件。

获取粒子特效组件。

获取音频组件。

#include"Components/SceneComponent.h"
#include"Components/StaticMeshComponent.h"
#include"Components/BoxComponent.h"
#include"Particles/ParticleSystemComponent.h"
#include"Components/AudioComponent.h"

 actor的.h在class里面声明我们的变量

UCLASS()
class CFIRST_API AMyActor : public AActor
{
	GENERATED_BODY()
	
public:	
	// Sets default values for this actor's properties
	AMyActor();

protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;

public:	
	// Called every frame
	virtual void Tick(float DeltaTime) override;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "MySceneComponent")
		class USceneComponent* MyScene;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "MySceneComponent")
		class UStaticMeshComponent* MyMesh;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "MySceneComponent")
		class UParticleSystemComponent* MyParticle;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "MySceneComponent")
		class UBoxComponent* MyBox;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "MySceneComponent")
		class UAudioComponent* MyAudio;


};

 在CPP里面声明

AMyActor::AMyActor()
{
 	// 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;

	MyScene = CreateDefaultSubobject<USceneComponent>(TEXT("MyCustomScene"));
	
	MyMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("MyCustomStaticMesh"));

	MyParticle = CreateDefaultSubobject<UParticleSystemComponent>(TEXT("MyCustomParticleSystem"));

	MyBox = CreateDefaultSubobject<UBoxComponent>(TEXT("MyCustomBox"));

	MyAudio = CreateDefaultSubobject<UAudioComponent>(TEXT("MyCustomAudio"));
}

然后也是在AMyActor::AMyActor()里设置父子关系

//设置父子级关系
	//设置MySence设置为默认根组件
	RootComponent = MyScene;
	//设置MyMesh为MySence的儿子
	MyMesh->SetupAttachment(MyScene);
	MyParticle->SetupAttachment(MyScene);
	MyBox->SetupAttachment(MyScene);

	MyAudio->SetupAttachment(MyBox);

实现的效果为：

笔记总结来源于：【【虚幻5】UE5C++零基础全网全流程开发从入门到进阶教程合集（持续跟新中）】https://www.bilibili.com/video/BV1Dc411f7nx?vd_source=90cb1ac44856e5e826e2bee8aa9d8a41