unreal-c++教程-第六章:控制你的角色

zifa2003293 · 发表于 2023-4-12 22:14

控制你的角色

效果演示

link

复制代码

1.1 创建控制类

AInputManager.cpp

// Fill out your copyright notice in the Description page of Project Settings.#include"InputManager.h"// Sets default values
AInputManager::AInputManager(){// 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;}// Called when the game starts or when spawnedvoid AInputManager::BeginPlay(){
Super::BeginPlay();auto world = this->GetWorld();auto playerController= world->GetFirstPlayerController();auto inputComp = playerController->InputComponent;
inputComp->BindAxis("MouseTurnInput", this,&AInputManager::MouseTurnInput);
inputComp->BindAxis("MouseTurnUpInput", this,&AInputManager::MouseTurnUpInput);
inputComp->BindAxis("RightDirInput", this,&AInputManager::RightDirInput);
inputComp->BindAxis("ForwardDirInput", this,&AInputManager::ForawrdDirInput);}// Called every framevoid AInputManager::Tick(float DeltaTime){
Super::Tick(DeltaTime);}void AInputManager::MouseTurnInput(float val){}void AInputManager::MouseTurnUpInput(float val){}void AInputManager::ForawrdDirInput(float val){}void AInputManager::RightDirInput(float val){}

复制代码

1.2 通过GameMode生成角色

1.2.1 Unreal的GamePlay框架

复制代码

1.2.2 设置GamePlay

复制代码

我们打开这个GamePlay配置脚本，会发现有很多配置项
本章我们关注的是通过GamePlay 控制默认生成的对象类为我们的BaseRole

注意编译(再强调一下)
另外一个问题，当我们有很多GamePlay的配置脚本时，我们应该怎么去选择应用某个GamePlay？

然后我们再将场景中的第三人称的角色删掉
当我们再度运行游戏的时候，它会给你生成一个默认的BaseRole

这里其实存在几个问题

这时候我们看到的画面依旧是非常鬼畜的，因为我们缺少相机

我们需要针对这个解决一下
1.3 c++角色添加摄像机

核心代码：

ABaseRole::ABaseRole(){// Set this character to call Tick() every frame. You can turn this off to improve performance if you don't need it.
PrimaryActorTick.bCanEverTick = true;auto mesh = this->GetMesh();auto asset = ConstructorHelpers::FObjectFinder<USkeletalMesh>(TEXT("SkeletalMesh'/Game/Demos/Mesh/BaseRole/BaseRole.BaseRole'"));
mesh->SetSkeletalMesh(asset.Object);
mesh->SetRelativeLocation(FVector(0,0,-80));
mesh->SetRelativeRotation(FRotator(0,-90,0));
ConstructorHelpers::FClassFinder<UAnimInstance>meshAnima(TEXT("/Game/Demos/Animator/AnimBP/BaseRoleAnimBP"));auto animClass = meshAnima.Class;
mesh->SetAnimClass(animClass);
bUseControllerRotationYaw = false;
camera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera"));
arm = CreateDefaultSubobject<USpringArmComponent>(TEXT("Arm"));
arm->AttachTo(RootComponent);
arm->TargetArmLength =300.f;
arm->SetRelativeRotation(FRotator(-45,0,0));
arm->bEnableCameraLag = true;
arm->CameraLagSpeed =5;
arm->CameraLagMaxDistance =1.5f;
arm->bEnableCameraRotationLag = true;
arm->CameraRotationLagSpeed =10;
arm->CameraLagMaxTimeStep =1;
camera->AttachTo(arm,USpringArmComponent::SocketName);}

复制代码

这里面关于视角的控制函数：

void ABaseRole::VerticalRot(float val){if(val){float temp = arm->GetRelativeRotation().Pitch + val;if(temp <25&& temp >-65){
arm->AddLocalRotation(FRotator(val,0,0));}}}void ABaseRole::HorizontalRot(float val){if(val){AddActorLocalRotation(FRotator(0, val,0));}}

复制代码

1.3.1 鼠标控制SpringArm

复制代码

从PlayerController中获取Playter0

在InputManager里面，当我们接收到鼠标移动的信号时，直接call role的两个视角旋转函数即可

void AInputManager::MouseTurnInput(float val){//FString TheFloatStr = FString::SanitizeFloat(val);
role->HorizontalRot(val);}void AInputManager::MouseTurnUpInput(float val){
role->VerticalRot(val);}

复制代码

1.4 移动控制

代码也比较简单：

void ABaseRole::RightMove(float val){
FRotator CurrentRotation = this->GetActorRotation();const FVector Direction =FRotationMatrix(CurrentRotation).GetScaledAxis(EAxis::Y);AddMovementInput(Direction, val *10);}void ABaseRole::ForwardMove(float val){
FRotator CurrentRotation = this->GetActorRotation();const FVector Direction =FRotationMatrix(CurrentRotation).GetScaledAxis(EAxis::X);AddMovementInput(Direction, val *10);}

复制代码

		自动登录	找回密码
密码			立即注册