UE C++学习笔记之创建组件

UE.h头文件：

#pragma once#include "CoreMinimal.h"
#include "GameFramework/Pawn.h"
#include "Components/BoxComponent.h"
#include "Camera/CameraComponent.h"#include "SnakeHead.generated.h"UCLASS()
class SNAKEGAME_API ASnakeHead : public APawn
{GENERATED_BODY()public:// Sets default values for this pawn's propertiesASnakeHead();UPROPERTY(VisibleAnywhere)//添加到虚幻引擎中在任何地方可视UStaticMeshComponent* Mesh;//mesh组件UPROPERTY(VisibleAnywhere)//添加到虚幻引擎中在任何地方可视UBoxComponent* Collision; //碰撞组件UPROPERTY(VisibleAnywhere)//添加到虚幻引擎中在任何地方可视UCameraComponent* Camera;//摄像机组件protected:// Called when the game starts or when spawnedvirtual void BeginPlay() override;public:	// Called every framevirtual void Tick(float DeltaTime) override;// Called to bind functionality to inputvirtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;};

UE.cpp文件：

// Fill out your copyright notice in the Description page of Project Settings.#include "SnakeHead.h"// Sets default values
ASnakeHead::ASnakeHead()
{// Set this pawn to call Tick() every frame.  You can turn this off to improve performance if you don't need it.PrimaryActorTick.bCanEverTick = true;Collision = CreateDefaultSubobject<UBoxComponent>(TEXT("Collision"));//创建碰撞物体名字是CollisionRootComponent = Collision;//为Actor根组件赋值Mesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh"));//创建mesh组件名字是MeshMesh->SetupAttachment(RootComponent);//把mesh的父亲设置为RootComponentCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera")); // 创建Camera组件名字是CameraCamera->SetupAttachment(RootComponent);//把Camera的父亲设置为RootComponent
}// Called when the game starts or when spawned
void ASnakeHead::BeginPlay()
{Super::BeginPlay();}// Called every frame
void ASnakeHead::Tick(float DeltaTime)
{Super::Tick(DeltaTime);}// Called to bind functionality to input
void ASnakeHead::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{Super::SetupPlayerInputComponent(PlayerInputComponent);}