UE5数字孪生系列笔记(三)

[小瓜]2024-03-27 15:54

C++创建Pawn类玩家

  • 创建一个GameMode蓝图用来加载我们自定义的游戏Mode
  • 新建一个Pawn的C++，MyCharacter类作为玩家，新建一个相机组件与相机臂组件，box组件作为根组件
cpp 复制代码 
// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Pawn.h"
#include "MyCharacter.generated.h"

UCLASS()
class CITYTWIN_API AMyCharacter : public APawn
{
	GENERATED_BODY()

public:
	// Sets default values for this pawn's properties
	AMyCharacter();

	//box作为根组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class UBoxComponent* CollisionBox;

	//相机组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class UCameraComponent* FollowCamera;

	//相机臂组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class USpringArmComponent* CameraBoom;

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

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

	// Called to bind functionality to input
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;

};
  • 声明创建组件，硬编码一些基本属性
cpp 复制代码 
// Fill out your copyright notice in the Description page of Project Settings.


#include "MyCharacter.h"
#include "Components/BoxComponent.h"
#include "Camera/CameraComponent.h"
#include "GameFramework/SpringArmComponent.h"

// Sets default values
AMyCharacter::AMyCharacter()
{
 	// 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;

	CollisionBox = CreateDefaultSubobject<UBoxComponent>(TEXT("CollisionBox"));
	CollisionBox->SetupAttachment(GetRootComponent());

	CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
	CameraBoom->SetupAttachment(CollisionBox);
	CameraBoom->TargetArmLength = 1500.f;
	CameraBoom->bUsePawnControlRotation = false;
	CameraBoom->bEnableCameraLag = true;//摄像机臂平滑
	CameraBoom->bEnableCameraRotationLag = true;//启用相机旋转延迟
	CameraBoom->bDoCollisionTest = false;//关闭摄像机臂碰撞

	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(CameraBoom);
	FollowCamera->bUsePawnControlRotation = false;
}

// Called when the game starts or when spawned
void AMyCharacter::BeginPlay()
{
	Super::BeginPlay();
	
}

// Called every frame
void AMyCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

// Called to bind functionality to input
void AMyCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

}
  • 创建这个Pawn类的蓝图进行之前登录页面动画的视角旋转方向问题的解决
  • 首先将蓝图生成对齐到视角
  • 将Pawn类自动接收玩家0
  • 然后删除PlayerStart
  • 运行结果

移动增强输入系统

  • 在项目建立.cs文件中添加这个模块
  • 绑定增强输入系统操作
  • MyCharacter.h
cpp 复制代码 
// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Pawn.h"
#include "../../../../UE_5.2.1/UE_5.2/Engine/Plugins/EnhancedInput/Source/EnhancedInput/Public/InputActionValue.h"
#include "MyCharacter.generated.h"

UCLASS()
class CITYTWIN_API AMyCharacter : public APawn
{
	GENERATED_BODY()

public:
	// Sets default values for this pawn's properties
	AMyCharacter();

	//box作为根组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class UBoxComponent* CollisionBox;

	//相机组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class UCameraComponent* FollowCamera;

	//相机臂组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class USpringArmComponent* CameraBoom;

	//绑定映射
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputMappingContext* MappingContext;

	//移动绑定
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputAction* LeftButtonAction;


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

	//鼠标按下操作事件
	void LeftMouseDown(const FInputActionValue& value);
	void LeftMouseUp(const FInputActionValue& value);

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

	// Called to bind functionality to input
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;

};
  • MyCharacter.cpp
cpp 复制代码 
// Fill out your copyright notice in the Description page of Project Settings.
#include "MyCharacter.h"
#include "Components/BoxComponent.h"
#include "Camera/CameraComponent.h"
#include "GameFramework/SpringArmComponent.h"
#include "EnhancedInputSubsystems.h"
#include "EnhancedInputComponent.h"

// Sets default values
AMyCharacter::AMyCharacter()
{
 	// 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;

	CollisionBox = CreateDefaultSubobject<UBoxComponent>(TEXT("CollisionBox"));
	CollisionBox->SetupAttachment(GetRootComponent());

	CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
	CameraBoom->SetupAttachment(CollisionBox);
	CameraBoom->TargetArmLength = 1500.f;
	CameraBoom->bUsePawnControlRotation = false;
	CameraBoom->bEnableCameraLag = true;//摄像机臂平滑
	CameraBoom->bEnableCameraRotationLag = true;//启用相机旋转延迟
	CameraBoom->bDoCollisionTest = false;//关闭摄像机臂碰撞

	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(CameraBoom);
	FollowCamera->bUsePawnControlRotation = false;
}
// Called when the game starts or when spawned
void AMyCharacter::BeginPlay()
{
	Super::BeginPlay();
	APlayerController* PlayerController = Cast<APlayerController>(Controller);
	if (PlayerController)
	{
		UEnhancedInputLocalPlayerSubsystem* Subsystem =
			ULocalPlayer::GetSubsystem<UEnhancedInputLocalPlayerSubsystem>(PlayerController->GetLocalPlayer());
		if (Subsystem)
		{
			Subsystem->AddMappingContext(MappingContext, 0);
		}
	}
}
void AMyCharacter::LeftMouseDown(const FInputActionValue& value)
{
}

void AMyCharacter::LeftMouseUp(const FInputActionValue& value)
{
}
// Called every frame
void AMyCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}
// Called to bind functionality to input
void AMyCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	UEnhancedInputComponent* EnhancedInputConponent = Cast<UEnhancedInputComponent>(PlayerInputComponent);
	if (EnhancedInputConponent)
	{
		EnhancedInputConponent->BindAction(LeftButtonAction, ETriggerEvent::Started, this, &AMyCharacter::LeftMouseDown);
		EnhancedInputConponent->BindAction(LeftButtonAction, ETriggerEvent::Completed, this, &AMyCharacter::LeftMouseUp);

	}
}

获取鼠标位置坐标与鼠标移动后的差量

  • 使用GetMousePosition函数来获取鼠标的坐标点
  • 在MyCharacter.h中新建一个函数专门用来获取鼠标的坐标点的函数
cpp 复制代码 
	//鼠标的坐标点
	FVector2D MousePos = FVector2D::ZeroVector;

void GetMousePosition();
  • 在MyCharacter.cpp中实现此方法
cpp 复制代码 
void AMyCharacter::GetMousePosition()
{
	
	GetWorld()->GetFirstPlayerController()->GetMousePosition(MousePos.X, MousePos.Y);
	
	//打印鼠标信息到屏幕
	GEngine->AddOnScreenDebugMessage(-1, 1, FColor::Red, FString::Printf(TEXT("%f,%f"), MousePos.X, MousePos.Y));
}
  • 获取鼠标变化差量，当我们鼠标变化时，我们要获取到这个变化的差量值，我们可以定义两个变量，一个变量存储用来作为变化之前的绝对位置减去变化之后的当前绝对位置，然后另外两个变量来存储变化之后当前的绝对位置
cpp 复制代码 
	//鼠标的坐标点
	FVector2D MousePos = FVector2D::ZeroVector;
	
	//记录的鼠标变化差量
	FVector2D MouseVariationDifference = FVector2D::ZeroVector;

	//记录变化之后的鼠标坐标
	float MouseX = 0.f;
	float MouseY = 0.f;

void AMyCharacter::GetMousePosition()
{

	//获取当前鼠标移动坐标
	GetWorld()->GetFirstPlayerController()->GetMousePosition(MousePos.X, MousePos.Y);

	//记录的鼠标变化差量
	MouseVariationDifference = MousePos - FVector2D(MouseX, MouseY);

	//记录变化后的鼠标位置
	MouseX = MousePos.X;
	MouseY = MousePos.Y;

	//打印鼠标信息到屏幕
	GEngine->AddOnScreenDebugMessage(1, 1, FColor::Red, FString::Printf(TEXT("%f,%f"), MousePos.X, MousePos.Y));
	GEngine->AddOnScreenDebugMessage(2, 1, FColor::Yellow, FString::Printf(TEXT("%f,%f"), MouseVariationDifference.X, MouseVariationDifference.Y));
}

设置滑动鼠标实现旋转视角效果

  • 通过获取的移动的鼠标差量进行鼠标滑动移动视角
  • 新建一个鼠标视角移动速度变量，用来控制鼠标实现视角旋转的移动速度
cpp 复制代码 
	//鼠标视角移动速度
	float MouseSpeed = 0.1f;
  • 新建一个鼠标视角移动函数，函数逻辑
  • ActorRotator.Pitch + (MouseVariationDifference.Y * MouseSpeed）：Pitch是虚幻中的抬头与低头，在直角坐标系中用来Y来描述
  • ActorRotator.Yaw + (MouseVariationDifference.X * MouseSpeed * -1.f)：Yaw是摇头转向，在直角坐标系中用来X来描述，实践中得乘以-1使用，估计是因为虚幻默认以右方向为正方向的原因
cpp 复制代码 
	//鼠标移动视角移动事件
	void MouseMove();
	
void AMyCharacter::MouseMove()
{
	FRotator ActorRotator = GetActorRotation();
	FRotator NewActorRotator = FRotator(ActorRotator.Pitch + (MouseVariationDifference.Y * MouseSpeed),
		ActorRotator.Yaw + (MouseVariationDifference.X * MouseSpeed * -1.f), ActorRotator.Roll);
	SetActorRotation(NewActorRotator);
}
  • 调用函数
cpp 复制代码 
// Called every frame
void AMyCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	//获取鼠标坐标
	GetMousePosition();
	//鼠标移动视角
	MouseMove();

}
  • 运行结果

鼠标左键视觉拖动效果

  • 将滑动鼠标实现旋转视角效果设置为鼠标左键按下后才能实现
  • 添加一个布尔变量用来标识是否要开启鼠标旋转视角事情
cpp 复制代码 
	//标识鼠标左键是否按下
	bool bIsMouseLeftDown = false;

void AMyCharacter::MouseMove()
{
	if (bIsMouseLeftDown)
	{
		FRotator ActorRotator = GetActorRotation();
		//限制一下视角度数带来的错误
		FRotator NewActorRotator = FRotator(FMath::Clamp((ActorRotator.Pitch + (MouseVariationDifference.Y * MouseSpeed)),-80.f,-10.f),
			ActorRotator.Yaw + (MouseVariationDifference.X * MouseSpeed * -1.f), ActorRotator.Roll);
		SetActorRotation(NewActorRotator);
		
	}
}

void AMyCharacter::LeftMouseDown(const FInputActionValue& value)
{
	bIsMouseLeftDown = true;
}

void AMyCharacter::LeftMouseUp(const FInputActionValue& value)
{
	bIsMouseLeftDown = false;
}

鼠标右键视角移动效果

  • 添加右键的输入操作
  • 新建右键是否按下的标识布尔变量，创建右键操作的输入行为，即绑定函数
cpp 复制代码 
	//移动绑定
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputAction* RightButtonAction;
	//标识鼠标右键是否按下
	bool bIsMouseRightDown = false;


// Called to bind functionality to input
void AMyCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	UEnhancedInputComponent* EnhancedInputConponent = Cast<UEnhancedInputComponent>(PlayerInputComponent);
	if (EnhancedInputConponent)
	{
		EnhancedInputConponent->BindAction(LeftButtonAction, ETriggerEvent::Started, this, &AMyCharacter::LeftMouseDown);
		EnhancedInputConponent->BindAction(LeftButtonAction, ETriggerEvent::Completed, this, &AMyCharacter::LeftMouseUp);
		EnhancedInputConponent->BindAction(RightButtonAction, ETriggerEvent::Started, this, &AMyCharacter::RightMouseDown);
		EnhancedInputConponent->BindAction(RightButtonAction, ETriggerEvent::Completed, this, &AMyCharacter::RightMouseUp);
	}
}

void AMyCharacter::RightMouseDown(const FInputActionValue& value)
{
	bIsMouseRightDown = true;
}

void AMyCharacter::RightMouseUp(const FInputActionValue& value)
{
	bIsMouseRightDown = false;
}
  • 新建鼠标右键移动速度变量，编写鼠标右键移动逻辑
cpp 复制代码 
	//鼠标右键移动速度
	float MouseRightSpeed = 100.f;

void AMyCharacter::MouseMove()
{
	if (bIsMouseLeftDown)
	{
		FRotator ActorRotator = GetActorRotation();
		//限制一下视角度数带来的错误
		FRotator NewActorRotator = FRotator(FMath::Clamp((ActorRotator.Pitch + (MouseVariationDifference.Y * MouseSpeed)),-80.f,-10.f),
			ActorRotator.Yaw + (MouseVariationDifference.X * MouseSpeed * -1.f), ActorRotator.Roll);
		SetActorRotation(NewActorRotator);
	}
	if (bIsMouseRightDown)
	{
		FVector SpeedMove = FVector(MouseVariationDifference.Y * MouseRightSpeed,
			-1.0 * MouseRightSpeed * MouseVariationDifference.X, 0);
		AddActorLocalOffset(SpeedMove);
		//限制z轴
		FVector Location = GetActorLocation();
		FVector NewLocation = FVector(Location.X, Location.Y, 4520);
		SetActorLocation(NewLocation);
	}
}

鼠标中键控制摄像机臂长度，缩放地图效果

  • 新建鼠标中键的操作行为，添加一个鼠标中键移动速度变量，然后在鼠标中键操作事件中完成逻辑，逻辑是获取相机臂的长度，用获取鼠标滚轮的量值乘以鼠标中键移动速度变量被获取的相机臂原长度减去
cpp 复制代码 
	//移动绑定
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputAction* MiddleButtonAction;
	
	//鼠标中键移动速度
	float MouseMiddleSpeed = 1000.f;

void AMyCharacter::MiddleMouseSlide(const FInputActionValue& value)
{
	float Axis = value.Get<float>();
	float CameraArm = CameraBoom->TargetArmLength;
	//限制相机臂长度
	CameraBoom->TargetArmLength = FMath::Clamp((CameraArm - Axis * MouseMiddleSpeed), 1000.f, 30000.f);
}
  • 运行结果

源码

MyCharacter.h

cpp 复制代码 
// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Pawn.h"
#include "../../../../UE_5.2.1/UE_5.2/Engine/Plugins/EnhancedInput/Source/EnhancedInput/Public/InputActionValue.h"
#include "MyCharacter.generated.h"



UCLASS()
class CITYTWIN_API AMyCharacter : public APawn
{
	GENERATED_BODY()

public:
	// Sets default values for this pawn's properties
	AMyCharacter();

	//box作为根组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class UBoxComponent* CollisionBox;

	//相机组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class UCameraComponent* FollowCamera;

	//相机臂组件
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Camera")
	class USpringArmComponent* CameraBoom;

	//绑定映射
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputMappingContext* MappingContext;

	//移动绑定
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputAction* LeftButtonAction;

	//移动绑定
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputAction* RightButtonAction;

	//移动绑定
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Input")
	class UInputAction* MiddleButtonAction;

	//鼠标的坐标点
	FVector2D MousePos = FVector2D::ZeroVector;

	//记录的鼠标变化差量
	FVector2D MouseVariationDifference = FVector2D::ZeroVector;

	//记录变化之后的鼠标坐标
	float MouseX = 0.f;
	float MouseY = 0.f;

	//鼠标视角移动速度
	float MouseSpeed = 0.1f;
	//鼠标右键移动速度
	float MouseRightSpeed = 100.f;
	//鼠标中键移动速度
	float MouseMiddleSpeed = 1000.f;

	//标识鼠标左键是否按下
	bool bIsMouseLeftDown = false;
	//标识鼠标右键是否按下
	bool bIsMouseRightDown = false;


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

	//鼠标按下操作事件
	void LeftMouseDown(const FInputActionValue& value);
	void LeftMouseUp(const FInputActionValue& value);
	void RightMouseDown(const FInputActionValue& value);
	void RightMouseUp(const FInputActionValue& value);
	void MiddleMouseSlide(const FInputActionValue& value);

	//鼠标移动视角移动事件
	void MouseMove();

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

	// Called to bind functionality to input
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;

	void GetMousePosition();
};

MyCharacter.cpp

cpp 复制代码 
// Fill out your copyright notice in the Description page of Project Settings.


#include "MyCharacter.h"
#include "Components/BoxComponent.h"
#include "Camera/CameraComponent.h"
#include "GameFramework/SpringArmComponent.h"
#include "EnhancedInputSubsystems.h"
#include "EnhancedInputComponent.h"
#include "Engine/Engine.h"

// Sets default values
AMyCharacter::AMyCharacter()
{
 	// 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;

	CollisionBox = CreateDefaultSubobject<UBoxComponent>(TEXT("CollisionBox"));
	CollisionBox->SetupAttachment(GetRootComponent());

	CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
	CameraBoom->SetupAttachment(CollisionBox);
	CameraBoom->TargetArmLength = 1500.f;
	CameraBoom->bUsePawnControlRotation = false;
	CameraBoom->bEnableCameraLag = true;//摄像机臂平滑
	CameraBoom->bEnableCameraRotationLag = true;//启用相机旋转延迟
	CameraBoom->bDoCollisionTest = false;//关闭摄像机臂碰撞

	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(CameraBoom);
	FollowCamera->bUsePawnControlRotation = false;
}

// Called when the game starts or when spawned
void AMyCharacter::BeginPlay()
{
	Super::BeginPlay();
	APlayerController* PlayerController = Cast<APlayerController>(Controller);
	if (PlayerController)
	{
		UEnhancedInputLocalPlayerSubsystem* Subsystem =
			ULocalPlayer::GetSubsystem<UEnhancedInputLocalPlayerSubsystem>(PlayerController->GetLocalPlayer());
		if (Subsystem)
		{
			Subsystem->AddMappingContext(MappingContext, 0);
		}
	}
}

void AMyCharacter::LeftMouseDown(const FInputActionValue& value)
{
	bIsMouseLeftDown = true;
}

void AMyCharacter::LeftMouseUp(const FInputActionValue& value)
{
	bIsMouseLeftDown = false;
}

void AMyCharacter::RightMouseDown(const FInputActionValue& value)
{
	bIsMouseRightDown = true;
}

void AMyCharacter::RightMouseUp(const FInputActionValue& value)
{
	bIsMouseRightDown = false;
}


void AMyCharacter::MiddleMouseSlide(const FInputActionValue& value)
{
	float Axis = value.Get<float>();
	float CameraArm = CameraBoom->TargetArmLength;
	//限制相机臂长度
	CameraBoom->TargetArmLength = FMath::Clamp((CameraArm - Axis * MouseMiddleSpeed), 1000.f, 30000.f);
}

void AMyCharacter::MouseMove()
{
	if (bIsMouseLeftDown)
	{
		FRotator ActorRotator = GetActorRotation();
		//限制一下视角度数带来的错误
		FRotator NewActorRotator = FRotator(FMath::Clamp((ActorRotator.Pitch + (MouseVariationDifference.Y * MouseSpeed)),-80.f,-10.f),
			ActorRotator.Yaw + (MouseVariationDifference.X * MouseSpeed * -1.f), ActorRotator.Roll);
		SetActorRotation(NewActorRotator);
	}
	if (bIsMouseRightDown)
	{
		FVector SpeedMove = FVector(MouseVariationDifference.Y * MouseRightSpeed,
			-1.0 * MouseRightSpeed * MouseVariationDifference.X, 0);
		AddActorLocalOffset(SpeedMove);
		//限制z轴
		FVector Location = GetActorLocation();
		FVector NewLocation = FVector(Location.X, Location.Y, 4520);
		SetActorLocation(NewLocation);
	}
}


// Called every frame
void AMyCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	//获取鼠标坐标
	GetMousePosition();
	//鼠标移动视角
	MouseMove();

}

// Called to bind functionality to input
void AMyCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	UEnhancedInputComponent* EnhancedInputConponent = Cast<UEnhancedInputComponent>(PlayerInputComponent);
	if (EnhancedInputConponent)
	{
		EnhancedInputConponent->BindAction(LeftButtonAction, ETriggerEvent::Started, this, &AMyCharacter::LeftMouseDown);
		EnhancedInputConponent->BindAction(LeftButtonAction, ETriggerEvent::Completed, this, &AMyCharacter::LeftMouseUp);
		EnhancedInputConponent->BindAction(RightButtonAction, ETriggerEvent::Started, this, &AMyCharacter::RightMouseDown);
		EnhancedInputConponent->BindAction(RightButtonAction, ETriggerEvent::Completed, this, &AMyCharacter::RightMouseUp);
		EnhancedInputConponent->BindAction(MiddleButtonAction, ETriggerEvent::Triggered, this, &AMyCharacter::MiddleMouseSlide);

	}
}

void AMyCharacter::GetMousePosition()
{
	//获取当前鼠标移动坐标
	GetWorld()->GetFirstPlayerController()->GetMousePosition(MousePos.X, MousePos.Y);

	//记录的鼠标变化差量
	MouseVariationDifference = MousePos - FVector2D(MouseX, MouseY);

	//记录变化后的鼠标位置
	MouseX = MousePos.X;
	MouseY = MousePos.Y;

	//打印鼠标信息到屏幕
	/*GEngine->AddOnScreenDebugMessage(1, 1, FColor::Red, FString::Printf(TEXT("%f,%f"), MousePos.X, MousePos.Y));
	GEngine->AddOnScreenDebugMessage(2, 1, FColor::Yellow, FString::Printf(TEXT("%f,%f"), MouseVariationDifference.X, MouseVariationDifference.Y));*/
}
相关推荐
啊我不会诶3 分钟前
CF每日4题（1300-1400）
开发语言·c++·算法
freyazzr13 分钟前
Leetcode刷题 | Day64_图论09_dijkstra算法
数据结构·c++·算法·leetcode·图论
学编程的小白狼17 分钟前
C#:多线程
开发语言·c#
island131417 分钟前
JAVA Web 期末速成
java·开发语言·前端
珊瑚里的鱼22 分钟前
【滑动窗口】LeetCode 1004题解 | 最大连续1的个数 Ⅲ
开发语言·c++·笔记·算法·leetcode
使者大牙23 分钟前
【C语言基础语法入门】通过简单实例快速掌握C语言核心概念
c语言·开发语言
2401_895610821 小时前
Java 后端基础 Maven
java·开发语言·maven
LAM LAB1 小时前
【VBA/word】批量替换字体大小
开发语言·c#·word
zzc9211 小时前
怎么用Origin画出MATLAB效果的3D时频图
开发语言·matlab
小峰编程1 小时前
Python函数——万字详解
linux·运维·服务器·开发语言·前端·网络·python
热门推荐
01从零安装 LLaMA-Factory 微调 Qwen 大模型成功及所有的坑02KGG转MP3工具|非KGM文件|解密音频03YOLOv8入门 | 重要性能衡量指标、训练结果评价及分析及影响mAP的因素【发论文关注的指标】04【SpeedAI科研小助手】2分钟极速解决知网维普重复率、AIGC率过高，一键全文降！文件格式不变，公式都保留的！05组基轨迹建模 GBTM的介绍与实现（Stata 或 R）06Coze扣子平台完整体验和实践（附国内和国际版对比）07Ubuntu24.04安装中文输入法08YOLOv5改进 | 添加CA注意力机制 + 增加预测层 + 更换损失函数之GIoU09DeepSeek各版本说明与优缺点分析10深度学习基础--ResNet网络的讲解，ResNet50的复现(pytorch)以及用复现的ResNet50做鸟类图像分类