Pawn
新建一个Pawn的c++类Bird，并且新建一个蓝图
添加一个Capsule（胶囊）
不知道要加啥头文件，去网站找https://docs.unrealengine.com/5.3/en-US/API/Runtime/Engine/Components/UCapsuleComponent/SetCapsuleSize/
包含文件名字的头文件必须放在最后
//文件
UPROPERTY(VisibleAnywhere)
UCapsuleComponent* Capsule;
//构造函数
Capsule = CreateDefaultSubobject<UCapsuleComponent>(TEXT("Capsule"));
SetRootComponent(Capsule);
不能让两个头文件互相引用，会产生错误，但是可以在对方的CPP里引用头文件。从父类继承时必须包含头文件
当你把头文件移到CPP的时候，你需要在第一个定义的时候加上Class
Skeletal Mesh Component骨骼网格体组件
为之前的Bird蓝图添加一个骨骼网格体，并且选择鸟的骨骼
BindInputs绑定输入
一个玩家的游戏，可以设置Player0来操控。shift+F1可以让鼠标和人物分离
绑定原理，将引擎里边写的前进和代码的绑定，当按下w时会给一个值1.0
添加绑定和代码编写，随后在bird蓝图里添加一个movement组件
添加相机臂和相机
导入头文件，定义相机臂和相机，编写代码
添加俯仰
新增轴映射，新建函数，绑定，编写，打开蓝图里的useYaw和Pitch
添为关卡添加默认pwan
新建一个GameMode的蓝图将里边的默认Pwan修改为BP_bird,并且将世界场景的gamemode覆盖为创建的
详细代码
头文件
// Fill out your copyright notice in the Description page of Project Settings.#pragma once#include "CoreMinimal.h"
#include "GameFramework/Pawn.h"
#include "Components/CapsuleComponent.h"
#include "Components/SkeletalMeshComponent.h"
#include "GameFramework/SpringArmComponent.h"
#include "Camera/CameraComponent.h"
#include "Bird.generated.h"UCLASS()
class ARPG_API ABird : public APawn
{GENERATED_BODY()public:ABird();virtual void Tick(float DeltaTime) override;
protected:virtual void BeginPlay() override;void MoveForward(float Value);void Turn(float Value);void LookUp(float Value);public: // Called to bind functionality to inputvirtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;UPROPERTY(VisibleAnywhere)UCapsuleComponent* Capsule;UPROPERTY(VisibleAnywhere)USkeletalMeshComponent* BirdMesh;private:UPROPERTY(VisibleAnywhere)class USpringArmComponent* CameraArm;UPROPERTY(VisibleAnywhere)class UCameraComponent* Camera;};
CPP
// Fill out your copyright notice in the Description page of Project Settings.#include "Bird.h"// Sets default values
ABird::ABird()
{PrimaryActorTick.bCanEverTick = true;Capsule = CreateDefaultSubobject<UCapsuleComponent>(TEXT("Capsule"));SetRootComponent(Capsule);//创建骨骼网格体，并且附加在根组件下BirdMesh = CreateDefaultSubobject<USkeletalMeshComponent>(TEXT("BirdMesh"));BirdMesh->SetupAttachment(GetRootComponent());// 创建一个名为 "CameraArm" 的默认子对象,将 CameraArm 与根组件（RootComponent）关联//设置相机臂的目标长度CameraArm = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraArm"));CameraArm->SetupAttachment(RootComponent);CameraArm->TargetArmLength = 300.f;//创建一个名为 "Camera" 的默认子对象,关联相机臂使相机位于 CameraArm 的末端Camera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera"));Camera->SetupAttachment(CameraArm);//设置自动接收输入玩家0AutoPossessPlayer = EAutoReceiveInput::Player0;}// Called when the game starts or when spawned
void ABird::BeginPlay()
{Super::BeginPlay();}void ABird::MoveForward(float Value)
{if (Controller && (Value != 0.f)){FVector Forward = GetActorForwardVector();AddMovementInput(Forward,Value);}
}void ABird::Turn(float Value)
{ AddControllerYawInput(Value);
}void ABird::LookUp(float Value)
{AddControllerPitchInput(Value);
}// Called every frame
void ABird::Tick(float DeltaTime)
{Super::Tick(DeltaTime);}// Called to bind functionality to input
void ABird::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{Super::SetupPlayerInputComponent(PlayerInputComponent);// 绑定“MoveForward”输入轴到 MoveForward 函数，以响应玩家输入// 参数 FName("MoveForward") 指定了输入轴的名称// this 指针将 ABird 类的当前实例与输入组件绑定// &ABird::MoveForward 是处理输入的函数，它会在输入轴发生变化时被调用PlayerInputComponent->BindAxis(FName("MoveForward"),this,&ABird::MoveForward);PlayerInputComponent->BindAxis(FName("Turn"),this,&ABird::Turn);PlayerInputComponent->BindAxis(FName("LookUp"),this,&ABird::LookUp);
}
