虚幻C++ day5

news2024/11/25 1:40:29

角色状态的常见机制

创建角色状态设置到UI上

  • 在MainPlayer.h中新建血量，最大血量，耐力，最大耐力，金币变量，作为角色的状态
	//主角状态
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe Stats")
	float Health;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe Stats")
	float MaxHealth;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe Stats")
	float Stamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe Stats")
	float  MaxStamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe Stats")
	int Coins;

//初始化角色状态
MaxHealth = 100.f;
Health = MaxHealth;
MaxStamina = 200.f;
Stamina = MaxStamina;
Coins = 0;
  • 然后我们需要去血量与耐力的UI蓝图中去实时更新present(这个是采用的比例)
  • 思路：因为这些UI都是用在MainPlayer中，我们在蓝图中获取MianPlayer的引用，然后实例化，这样我们每次用到这个UI的时候都会去实例化MainPlayer，然后present绑定个函数用来实时同步present值(状态值除以最大状态值)
    在这里插入图片描述
    在这里插入图片描述
    在这里插入图片描述
  • Stamina UI也是如此，运行结果
    在这里插入图片描述

添加状态更新函数

  • 添加三个函数，用来改变血量、耐力、金币的值

MainPlayer.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "MainPlayer.generated.h"

UCLASS()
class UEGAME_API AMainPlayer : public ACharacter
{
	GENERATED_BODY()

public:
	// Sets default values for this character's properties
	AMainPlayer();

	//新建一个SpringArm
	UPROPERTY(visibleAnywhere,BlueprintReadOnly)
	class USpringArmComponent* SpringArm;
	//新建一个Camera
	UPROPERTY(visibleAnywhere, BlueprintReadOnly)
	class UCameraComponent* FollowCamera;

	
	float BaseTurnRate;		//使用键盘X转向的速率
	float BaseLookUpRate;	//使用键盘Y转向的速率

	//主角状态
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe State")
	float Health;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	float MaxHealth;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe State")
	float Stamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	float  MaxStamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	int Coins;



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;

	//重新Character类中的Jump方法
	void Jump() override;

	void MoveForward(float value);
	void MoveRight(float value);

	void Turn(float Value);
	void LookUp(float Value);

	void TurnRate(float Rate);
	void LookUpRate(float Rate);

	//改变状态
	void AddHealth(float value);
	void AddStamina(float value);
	void AddCoin(float value);
};

MainPlayer.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "MainPlayer.h"
#include "GameFramework/SpringArmComponent.h"
#include "Camera/CameraComponent.h"
#include "Components/CapsuleComponent.h"
#include "Components/InputComponent.h"
#include "GameFramework/PlayerController.h"
#include "GameFramework/CharacterMovementComponent.h"

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

	SpringArm = CreateDefaultSubobject<USpringArmComponent>(TEXT("SpringArm"));
	SpringArm->SetupAttachment(GetRootComponent());
	//设置SPringArm无碰撞臂长
	SpringArm->TargetArmLength = 600.f;
	SpringArm->bUsePawnControlRotation = true;//硬编码SpringArm继承controlller旋转为真

	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(SpringArm, NAME_None);
	FollowCamera->bUsePawnControlRotation = false;//硬编码FollowCamera继承controlller旋转为假

	//设置胶囊体的默认宽高
	GetCapsuleComponent()->SetCapsuleSize(35.f, 100.f);

	//对Character的Pawn进行硬编码
	bUseControllerRotationPitch = false;
	bUseControllerRotationYaw = false;
	bUseControllerRotationRoll = false;

	//硬编码orient Rotation to Movement,给个默认转向速率
	GetCharacterMovement()->bOrientRotationToMovement = true;
	GetCharacterMovement()->RotationRate = FRotator(0.f, 500.f, 0.f);

	//设置跳跃初始值与在空中的坠落时横向运动控制量
	GetCharacterMovement()->JumpZVelocity = 600.f;
	GetCharacterMovement()->AirControl = 0.15f;

	//给键盘控制转向的速率变量赋初值
	BaseTurnRate = 21.f;
	BaseLookUpRate = 21.f;

	//初始化角色状态
	MaxHealth = 100.f;
	Health = MaxHealth;
	MaxStamina = 200.f;
	Stamina = MaxStamina;
	Coins = 0;
}

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

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

}

// Called to bind functionality to input
void AMainPlayer::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);
	//检查PlayerInputComponent指针，check函数只能在这使用
	check(PlayerInputComponent);

	//绑定跳跃轴映射事件
	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &AMainPlayer::Jump);//按下空格
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);//抬起空格

	//绑定移动轴映射事件
	PlayerInputComponent->BindAxis("MoveForward", this, &AMainPlayer::MoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &AMainPlayer::MoveRight);

	//绑定Controller控制器去管理视角旋转
	PlayerInputComponent->BindAxis("Turn", this, &AMainPlayer::Turn);
	PlayerInputComponent->BindAxis("LookUp", this, &AMainPlayer::LookUp);

	//绑定键盘鼠标轴映射事件
	PlayerInputComponent->BindAxis("TurnRate", this, &AMainPlayer::TurnRate);
	PlayerInputComponent->BindAxis("LookUpRate", this, &AMainPlayer::LookUpRate);

}

void AMainPlayer::Jump()
{
	//继承父类的方法
	Super::Jump();
}

void AMainPlayer::MoveForward(float value)
{
	if (Controller != nullptr && value != 0.f)
	{
		//获取到Control旋转
		FRotator Rotation = Controller->GetControlRotation();
		//转向只关注水平Yaw方向，因此置0防止影响
		FRotator YowRotation = FRotator(0.0f, Rotation.Yaw, 0.0f);
		//获取相机(鼠标控制器的朝向)，并且朝这个轴的方向移动
		FVector Direction = FRotationMatrix(YowRotation).GetUnitAxis(EAxis::X);
		AddMovementInput(Direction, value);
	}

}

void AMainPlayer::MoveRight(float value)
{
	if (Controller != nullptr && value != 0.f)
	{
		//获取到Controller旋转
		FRotator Rotation = Controller->GetControlRotation();
		//转向只关注水平Yaw方向，因此置0防止影响
		FRotator YowRotation = FRotator(0.0f, Rotation.Yaw, 0.0f);
		//获取相机(鼠标控制器的朝向)，并且朝这个轴的方向移动
		FVector Direction = FRotationMatrix(YowRotation).GetUnitAxis(EAxis::Y);
		AddMovementInput(Direction, value);
	}
}

void AMainPlayer::Turn(float Value)
{
	if (Value != 0.f)
	{
		AddControllerYawInput(Value);
	}
	
}

void AMainPlayer::LookUp(float Value)
{
	//UE_LOG(LogTemp, Warning, TEXT("%f"), GetControlRotation().Pitch);
	// 
	//控制视角
	if (GetControlRotation().Pitch < 270.f && GetControlRotation().Pitch >180.f && Value > 0.f)
	{
		return;
	}
	else if (GetControlRotation().Pitch < 180.f && GetControlRotation().Pitch >45.f && Value < 0.f)
	{
		return;
	}
	AddControllerPitchInput(Value);
}

void AMainPlayer::TurnRate(float Rate)
{
	//要乘以一个DeltaTime这样就可以避免高帧底帧差值问题
	float Value = Rate * BaseTurnRate * GetWorld()->GetDeltaSeconds();
	if (Value != 0.f)
	{
		AddControllerYawInput(Value);
	}
}

void AMainPlayer::LookUpRate(float Rate)
{
	//要乘以一个DeltaTime这样就可以避免高帧底帧差值问题
	float Value = Rate * BaseLookUpRate * GetWorld()->GetDeltaSeconds();
	//控制视角
	if (GetControlRotation().Pitch < 270.f && GetControlRotation().Pitch >180.f && Value > 0.f)
	{
		return;
	}
	else if (GetControlRotation().Pitch < 180.f && GetControlRotation().Pitch >45.f && Value < 0.f)
	{
		return;
	}
	AddControllerPitchInput(Value);

}

void AMainPlayer::AddHealth(float value)
{
	Health = FMath::Clamp(Health + value, 0.f, MaxHealth);
}

void AMainPlayer::AddStamina(float value)
{
	Stamina = FMath::Clamp(Stamina + value, 0.f, MaxStamina);
}

void AMainPlayer::AddCoin(float value)
{
	Coins += value;
}

创建可交互物体的基类

  • 需求：这个可交互物体，应该可以播放粒子特效，所以我们需要粒子系统，然后有静态网格表示这个物体，作为基类，我们可以把所有的要求都写入里面，然后到时候创建子类继承来重写需求
  • 定义一个球形的触发器组件，静态网格，粒子组件与粒子系统，声音资源，进行多播委托事件，虚写多播委托函数，方便到时候子类继承重写
  • 可以自定义一下这个物体的旋转和碰撞类别
  • #include "Components/SphereComponent.h"：球形碰撞器的头文件
  • #include "Particles/ParticleSystemComponent.h"：粒子系统的头文件

InteroperableItem.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "InteroperableItem.generated.h"

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

	//球形触发器
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
	class USphereComponent* TriggerVolume;

	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
	class UStaticMeshComponent* DisplayMesh;

	//粒子组件
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
	class UParticleSystemComponent* ParticleEffectsComponent;

	//粒子资源
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Interoperable Item|Particles")
	class UParticleSystem* Particle;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Interoperable Item|Sounds")
	class USoundCue* Sound;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Interoperable Item|Properties")
	bool bRotate;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Interoperable Item|Properties")
	float RotationRate;  
protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;

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

	//自定义AddDynamic绑定的触发器函数
	UFUNCTION()
	virtual void OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult);
	UFUNCTION()
	virtual void OnOverlapEnd(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex);
	
};

InteroperableItem.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "InteroperableItem.h"
#include "Components/SphereComponent.h"
#include "Components/StaticMeshComponent.h"
#include "Particles/ParticleSystemComponent.h"
// Sets default values
AInteroperableItem::AInteroperableItem()
{
 	// 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;
	TriggerVolume = CreateDefaultSubobject<USphereComponent>(TEXT("TriggerVolume"));
	RootComponent = TriggerVolume;

	//设置TriggerVolume碰撞的硬编码
	TriggerVolume->SetCollisionEnabled(ECollisionEnabled::QueryOnly);//设置碰撞类型
	TriggerVolume->SetCollisionObjectType(ECollisionChannel::ECC_WorldStatic);//设置对象移动时其应视为某种物体
	TriggerVolume->SetCollisionResponseToAllChannels(ECollisionResponse::ECR_Ignore);//设置所有的碰撞响应为忽略
	TriggerVolume->SetCollisionResponseToChannel(ECollisionChannel::ECC_Pawn, ECollisionResponse::ECR_Overlap);//设置Pawn碰撞响应为重叠


	DisplayMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("DisplayMesh"));
	DisplayMesh->SetupAttachment(GetRootComponent());

	ParticleEffectsComponent = CreateDefaultSubobject<UParticleSystemComponent>(TEXT("ParticleEffects"));
	ParticleEffectsComponent->SetupAttachment(GetRootComponent());
	
	bRotate = true;
	RotationRate = 45.f;
}

// Called when the game starts or when spawned
void AInteroperableItem::BeginPlay()
{
	Super::BeginPlay();
	
	TriggerVolume->OnComponentBeginOverlap.AddDynamic(this, &AInteroperableItem::OnOverlapBegin);
	TriggerVolume->OnComponentEndOverlap.AddDynamic(this, &AInteroperableItem::OnOverlapEnd);

}

// Called every frame
void AInteroperableItem::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	if (bRotate)
	{
		FRotator rotator = GetActorRotation();
		rotator.Yaw += RotationRate * DeltaTime;
		SetActorRotation(rotator);
	}
}

void AInteroperableItem::OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
}

void AInteroperableItem::OnOverlapEnd(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex)
{
}

创建可交互基类的子类爆炸物

  • 创建一个继承自Interoperable类的子类Explosive
  • 新建一个伤害值，重写OnOverlapBegin与OnOverlapEnd事件函数，在OnOverlapBegin中判断角色是否触发到炸弹，然后生成发射器播放粒子效果与声音，之后销毁
AExplosiveItem::AExplosiveItem()
{
	Damage = 20.f;
}
void AExplosiveItem::OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	Super::OnOverlapBegin(OverlappedComponent, OtherActor, OtherComp, OtherBodyIndex, bFromSweep, SweepResult);
	
	if (OtherActor)
	{
		AMainPlayer* Player = Cast<AMainPlayer>(OtherActor);
		if (Player)
		{
			//防御性编程
			if (Particle)
			{
				//生成发射器
				UGameplayStatics::SpawnEmitterAtLocation(this, Particle, GetActorLocation(), FRotator(0.f), true);
			}
			if (Sound)
			{
				UGameplayStatics::PlaySound2D(this, Sound);
			}
			//销毁
			Destroy();
		}
	}
}
  • 运行结果
    在这里插入图片描述
    在这里插入图片描述

爆炸物对玩家的伤害施加

  • 我们采用UE中内置的直接伤害附加的功能，在Explosive类中调用UGameplayStatics::ApplyDamage()函数传递伤害值，在MainPlayer类中重写TakeDamage方法，进行接收伤害并对玩家施加
  • UGameplayStatics::ApplyDamage():源码函数分析
  • 该函数接收五个参数：
    • DamagedActor: 受损的 actor。
    • BaseDamage: 基础损害值。
    • EventInstigator: 事件发起者，通常是施加损害的对象。
    • DamageCauser: 直接导致损害的 actor。
    • DamageTypeClass: 损害类型的类。
    • 该函数首先检查 DamagedActor是否存在以及 BaseDamage是否不为零。如果是这样，则继续执行；否则，返回零表示未造成任何损害。 接下来，设置损害事件 (FDamageEvent)并传入有效的损害类型类 (TSubclassOf 类型)。如果提供了 DamageTypeClass参数，则使用该类；否则，默认使用 UDamageType类。 最后，调用 DamagedActor 的 TakeDamage方法，将基础损害值(BaseDamage) 和损害事件 (DamageEvent)传入，并返回造成的总损害。 整个函数最终实现的功能是将基础损害值施加到指定的受损actor上，并返回造成的总损害。
float UGameplayStatics::ApplyDamage(AActor* DamagedActor, float BaseDamage, AController* EventInstigator, AActor* DamageCauser, TSubclassOf<UDamageType> DamageTypeClass)
{
	if ( DamagedActor && (BaseDamage != 0.f) )
	{
		// make sure we have a good damage type
		TSubclassOf<UDamageType> const ValidDamageTypeClass = DamageTypeClass ? DamageTypeClass : TSubclassOf<UDamageType>(UDamageType::StaticClass());
		FDamageEvent DamageEvent(ValidDamageTypeClass);

		return DamagedActor->TakeDamage(BaseDamage, DamageEvent, EventInstigator, DamageCauser);
	}

	return 0.f;
}
  • TakeDamage()：源码分析
  • 该方法接收四个参数：
    • Damage: 损害值。
    • DamageEvent: 损害事件。
    • EventInstigator: 事件发起者。
    • DamageCauser: 直接导致损害的 actor。
    • 方法首先调用 ShouldTakeDamage 成员方法以确定 pawn 是否应该受到损害。如果返回 false，则方法直接返回零表示未造成任何损害。 然后，方法调用基类 Super::TakeDamage 方法来处理损害，并将传入的所有参数都传递给它。在此过程中，损害值会被修改以反映抗性等因素的影响。 最后，方法响应所受损害。如果 event instigator存在并且与 pawn的控制器不同，则更新最后一个击中者为event instigator。此外，无论是否存在event instigator 或 event instigator是否与pawn控制器相同，都会进行进一步处理，以确保 pawn在遭受损害后能够做出相应的反应（如播放动画或发出声音）。
float APawn::TakeDamage(float Damage, FDamageEvent const& DamageEvent, AController* EventInstigator, AActor* DamageCauser)
{
	if (!ShouldTakeDamage(Damage, DamageEvent, EventInstigator, DamageCauser))
	{
		return 0.f;
	}

	// do not modify damage parameters after this
	const float ActualDamage = Super::TakeDamage(Damage, DamageEvent, EventInstigator, DamageCauser);

	// respond to the damage
	if (ActualDamage != 0.f)
	{
		if ( EventInstigator && EventInstigator != Controller )
		{
			LastHitBy = EventInstigator;
		}
	}

	return ActualDamage;
}
  • Explosive.cpp
void AExplosiveItem::OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	Super::OnOverlapBegin(OverlappedComponent, OtherActor, OtherComp, OtherBodyIndex, bFromSweep, SweepResult);
	
	if (OtherActor)
	{
		AMainPlayer* Player = Cast<AMainPlayer>(OtherActor);
		if (Player)
		{
			//防御性编程
			if (Particle)
			{
				//生成发射器
				UGameplayStatics::SpawnEmitterAtLocation(this, Particle, GetActorLocation(), FRotator(0.f), true);
			}
			if (Sound)
			{
				UGameplayStatics::PlaySound2D(this, Sound);
			}
			
			//传递伤害值
			UGameplayStatics::ApplyDamage(OtherActor, Damage, nullptr, this, DamageTypeClass);

			//销毁
			Destroy();
		}
	}
}
  • MainPlayer.h
//重写TakeDamage方法
float TakeDamage(float Damage, struct FDamageEvent const& DamageEvent, AController* EventInstigator, AActor* DamageCauser) override;
  • MainPlayer.cpp
float AMainPlayer::TakeDamage(float Damage, FDamageEvent const& DamageEvent, AController* EventInstigator, AActor* DamageCauser)
{
	if (Health - Damage <= 0.f)
	{
		Health = FMath::Clamp(Health - Damage, 0.f, MaxHealth);
		//TODO Die();
	}
	else
	{
		Health -= Damage;
	}
	return Health;
}
  • 在蓝图中选择伤害类型为直接伤害
    在这里插入图片描述

创建可拾取道具的基类(基础自InteroperableItem)

  • 基本与Explosive子类差不多，只不过可拾取的基类目前只需要碰撞检测与一个提供拾取的共有接口OnPick(蓝图化)，这样到时候需求就可以去蓝图中可视化操作

PickItem.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GamePlay/InteroperableItem.h"
#include "PickItem.generated.h"

/**
 * 
 */
UCLASS()
class UEGAME_API APickItem : public AInteroperableItem
{
	GENERATED_BODY()

public:
	APickItem();
public:
	
	void OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult) override;
	void OnOverlapEnd(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex) override;

	UFUNCTION(BlueprintImplementEvent, Category = "Pick")
	void OnPick(class AMainPlayer* Palyer);
};

PickItem.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "PickItem.h"
#include "Kismet/GamePlayStatics.h"
#include "Characters/Player/MainPlayer.h"
#include "Sound/SoundCue.h"
APickItem::APickItem()
{
	
}

void APickItem::OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	if (OtherActor)
	{
		AMainPlayer* Player = Cast<AMainPlayer>(OtherActor);
		if (Player)
		{
			UGameplayStatics::SpawnEmitterAtLocation(this, Particle, GetActorLocation(), FRotator(0.f), true);
		}
		if (Sound)
		{
			UGameplayStatics::PlaySound2D(this, Sound);
		}
		OnPick(Player);//交给蓝图可视化去处理
		Destroy();
	}
}

void APickItem::OnOverlapEnd(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex)
{

}

创建可拾取道具基类的子类(Blueprint)

  • 创建PickItem蓝图进行MainPlayer的函数调用即可
  • 注意将之前MainPlayer中AddHealth这些函数加上反射
  • MainPlayer.h中的
	//改变状态
	UFUNCTION(BlueprintCallable,Category="Player|State")
	void AddHealth(float value);
	UFUNCTION(BlueprintCallable, Category = "Player|State")
	void AddStamina(float value);
	UFUNCTION(BlueprintCallable, Category = "Player|State")
	void AddCoin(float value);
  • 蓝图调用C++编写好的逻辑即可，UI会实时检测更新
    在这里插入图片描述
  • 运行结果
    在这里插入图片描述

冲刺行为需求

  • 思路1：当耐力值到达一个精疲力尽的状态时，就停止冲刺，所以我们需要在混合空间1D里面将Axis Setting最大速度值从600上升到900，添加9个关键帧将冲刺添加上去
    在这里插入图片描述
  • 思路2：新建四个变量来标识状态，耐力消耗速率，耐力的精疲力尽的状态，奔跑速度与冲刺速度
   //主角状态
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe State")
	float Health;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	float MaxHealth;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe State")
	float Stamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	float MaxStamina;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Playe State")
	float StaminaConsumeRate;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Playe State", meta = (ClampMin = 0, ClampMax = 1))
	float ExhaustedStamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	int Coins;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player State")
	float RunningSpeed;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player State")
	float SprintSpeed;

	//初始化角色状态
	MaxHealth = 100.f;
	Health = MaxHealth;
	MaxStamina = 200.f;
	Stamina = MaxStamina;
	StaminaConsumeRate = 20.f;
	ExhaustedStamina = 0.167f;
	Coins = 0;
	RunningSpeed = 600.f;
	SprintSpeed = 900.f;

创建枚举类型进行标识

  • 创建枚举用来标识角色的状态
  • 枚举的声明规则
  • UENUM(BlueprintType)：幻引擎中的一个宏，用于定义带有蓝图支持的枚举类型，使用此宏定义枚举时，它将在蓝图中可用
  • UMETA(DisplayName = "Normal")：是一个宏，用于设置枚举值的显示名称为 “Normal”。这是为了使枚举值在蓝图或编辑器界面中更加可读和直观。
UENUM(BlueprintType)
enum class 类名 : 变量类型
{
	变量 UMETA(DisplayName = "你调用时想要显示的名字"),
	....
	变量 UMETA(DisplayName = "你调用时想要显示的名字")
}
  • MainPlayer.h
//声明移动状态枚举
UENUM(BlueprintType)
enum class EPlayerMovementStatus :uint8
{
	EPMS_Normal UMETA(DisplayName = "Normal"),
	EPMS_Sprinting UMETA(DisplayName = "Sprinting"),
	EPMS_Dead UMETA(DisplayName = "Dead")
};

UENUM(BlueprintType)
enum class EPlayerStaminaStatus :uint8
{
	EPSS_Normal UMETA(DisplayName = "Normal"),
	EPSS_Exhausted UMETA(DisplayName = "Exhausted"),
	EPSS_ExhaustedRecovering UMETA(DisplayName = "ExhaustedRecovering")
};

// ```````````````````省略之前的
UPROPERTY(VisibleAnywhere,BlueprintReadWrite,Category="Player State")
EPlayerMovementStatus MovementStatus;
UPROPERTY(VisibleAnywhere,BlueprintReadWrite,Category="Player State")
EPlayerStaminaStatus StaminaStatus;
  • MainPlayer.cpp
	//初始化角色状态
// ```````````````````省略之前的
	MovementStatus = EPlayerMovementStatus::EPMS_Normal;
	StaminaStatus = EPlayerStaminaStatus::EPSS_Normal;

使用标识位检测shift状态

  • 新建一个bool变量来监测shift是否按下的状态，新建两个函数用来绑定shift事件映射状态用来判断是否按下shift状态。
  • MainPlayer.h
	bool bLeftShiftDown;
//短小精悍
FORCEINLINE void LeftShiftDown() { bLeftShiftDown = true; }
FORCEINLINE void LeftShiftUp() { bLeftShiftDown = false; }
  • MainPlayer.cpp
	//绑定跳跃轴映射事件
	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &AMainPlayer::Jump);//按下空格
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);//抬起空格

	PlayerInputComponent->BindAction("Sprint", IE_Pressed, this, &AMainPlayer::LeftShiftDown);//按下shift
	PlayerInputComponent->BindAction("Sprint", IE_Released, this, &AMainPlayer::LeftShiftUp);//抬起shift

冲刺逻辑编写

  • 思路划分：
    • 一、首先我们新建一个设置移动枚举状态的函数处理冲刺与不冲刺的时候character的速度，用于到时候逻辑编写时的状态更换
    • 二、然后我们在Tick中来设计耐力枚举切换的逻辑
    • 三、在EPSS_Normal中判断是否按下shift键，然后判断是否进入了精疲力尽区，逻辑(总耐力 -耐力消耗值 *DeltaTime<=最大耐力值 *耐力消耗速率)，这个逻辑就是每帧判断当前的耐力是否到达的精疲力尽区，到达了精疲力尽区首先改变StaminaStatus状态为Exhausted，没有进入精疲力尽区Stamina要减去每帧的耐力消耗值，这是必定的，然后移动状态转为Sprint，判断没有进入精疲力尽区，那就恢复Stamina值(可以与耐力消耗值一样)，然后把移动状态恢复成Normal状态
    • 四、在EPSS_Exhausted中判断是否还按着shift键，然后判断是否耐力已经到0了，如果耐力已经为0，那么我们需要内部编码把shift抬起，此时StaminaStatus状态转换为ExhaustedRecovering状态。然后设置移动状态为Normal，如果耐力没有为0，就直接减去当前帧消耗的耐力，没有按着shift键，那就直接将StaminaStatus状态转换为ExhaustedRecovering状态，恢复Stamina值，然后把移动状态恢复成Normal状态
    • 五、在EPSS_ExhaustedRecovering中判断当Stamina值已经大于精疲力尽区时，逻辑((总耐力 +耐力消耗值 *DeltaTime>=最大耐力值 *耐力消耗速率)，将StaminaStatus设置为Normal状态，然后Stamina要加上每帧的耐力消耗值，这是必定的，然后抬起shift与移动状态设置为Normal。
      在这里插入图片描述
//一、首先我们新建一个设置```移动枚举状态的函数```处理冲刺与不冲刺的时候```character```的速度，用于到时候逻辑编写时的状态更换
void SetMovementStatus(EPlayerMovementStatus Status);
void AMainPlayer::SetMovementStatus(EPlayerMovementStatus Status)
{
	MovementStatus = Status;
	//切换状态的时候改变移动速度
	switch (MovementStatus)
	{
	case EPlayerMovementStatus::EPMS_Sprinting:
		GetCharacterMovement()->MaxWalkSpeed = SprintSpeed;
		break;
	default:
		GetCharacterMovement()->MaxWalkSpeed = RunningSpeed;
		break;
	}
}
//二、然后我们在```Tick```中来设计耐力枚举切换的逻辑
// Called every frame
void AMainPlayer::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	switch (StaminaStatus)
	{
	case EPlayerStaminaStatus::EPSS_Normal:
		//当Shift按下
		if (bLeftShiftDown)
		{
			if (Stamina - StaminaConsumeRate * DeltaTime <= MaxStamina * ExhaustedStamina)
			{
				StaminaStatus = EPlayerStaminaStatus::EPSS_Exhausted;
			}
			//无论是不是精疲力尽状态都要减去当前帧冲刺消耗的耐力
			Stamina -= StaminaConsumeRate * DeltaTime;
			SetMovementStatus(EPlayerMovementStatus::EPMS_Sprinting);
		}
		else
		{
			//当Shift没有按下,恢复耐力
			Stamina = FMath::Clamp(Stamina + StaminaConsumeRate * DeltaTime, 0.f, MaxStamina);
			SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
		}
		break;
	case EPlayerStaminaStatus::EPSS_Exhausted:
		if (bLeftShiftDown)
		{
			//如果耐力已经为0
			if (Stamina - StaminaConsumeRate * DeltaTime <= 0.f)
			{
				//么我们需要内部编码把shift抬起，此时StaminaStatus状态转换为ExhaustedRecovering状态，然后设置移动状态为Normal
				LeftShiftUp();
				StaminaStatus = EPlayerStaminaStatus::EPSS_ExhaustedRecovering;	
				SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
			}
			else
			{
				Stamina -= StaminaConsumeRate * DeltaTime;
			}
		}
		else
		{
			StaminaStatus = EPlayerStaminaStatus::EPSS_ExhaustedRecovering;
			Stamina = FMath::Clamp(Stamina + StaminaConsumeRate * DeltaTime, 0.f, MaxStamina);
			SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
		}
		break;
	case EPlayerStaminaStatus::EPSS_ExhaustedRecovering:
		//当恢复大于疲劳区时，StaminaStatus状态为Normal
		if (Stamina + StaminaConsumeRate * DeltaTime >= MaxStamina * ExhaustedStamina)
		{
			StaminaStatus = EPlayerStaminaStatus::EPSS_Normal;
		}
		//这状态值肯定是加定了
		Stamina += StaminaConsumeRate * DeltaTime;

		//抬起shift
		LeftShiftUp();
		SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
		break;
	default:
		break;
	}
}

耐力消耗殆尽的变色UI

  • 添加一个Appearance的绑定，在蓝图中将编写的Enum进行判断状态然后切换相应颜色
    在这里插入图片描述
    在这里插入图片描述
  • 运行结果
    在这里插入图片描述

冲刺转弯时角色抖动问题

  • 我们调整一下动画蓝图即可，设置一个区间，比如在0-100走路，500-600奔跑，700-900冲刺，这样设置区别可以避免插值
    在这里插入图片描述

MainPlayer.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "MainPlayer.generated.h"

//声明移动状态枚举
UENUM(BlueprintType)
enum class EPlayerMovementStatus :uint8
{
	EPMS_Normal UMETA(DisplayName = "Normal"),
	EPMS_Sprinting UMETA(DisplayName = "Sprinting"),
	EPMS_Dead UMETA(DisplayName = "Dead")
};

UENUM(BlueprintType)
enum class EPlayerStaminaStatus :uint8
{
	EPSS_Normal UMETA(DisplayName = "Normal"),
	EPSS_Exhausted UMETA(DisplayName = "Exhausted"),
	EPSS_ExhaustedRecovering UMETA(DisplayName = "ExhaustedRecovering")
};

UCLASS()
class UEGAME_API AMainPlayer : public ACharacter
{
	GENERATED_BODY()

public:
	// Sets default values for this character's properties
	AMainPlayer();

	//新建一个SpringArm
	UPROPERTY(visibleAnywhere,BlueprintReadOnly)
	class USpringArmComponent* SpringArm;
	//新建一个Camera
	UPROPERTY(visibleAnywhere, BlueprintReadOnly)
	class UCameraComponent* FollowCamera;

	
	float BaseTurnRate;		//使用键盘X转向的速率
	float BaseLookUpRate;	//使用键盘Y转向的速率

	//主角状态
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe State")
	float Health;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	float MaxHealth;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Playe State")
	float Stamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	float MaxStamina;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Playe State")
	float StaminaConsumeRate;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Playe State", meta = (ClampMin = 0, ClampMax = 1))
	float ExhaustedStamina;
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Playe State")
	int Coins;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player State")
	float RunningSpeed;
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Player State")
	float SprintSpeed;
	UPROPERTY(VisibleAnywhere,BlueprintReadWrite,Category="Player State")
	EPlayerMovementStatus MovementStatus;
	UPROPERTY(VisibleAnywhere,BlueprintReadWrite,Category="Player State")
	EPlayerStaminaStatus StaminaStatus;

	bool bLeftShiftDown;

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;

	//重新Character类中的Jump方法
	void Jump() override;

	void MoveForward(float value);
	void MoveRight(float value);

	void Turn(float Value);
	void LookUp(float Value);

	void TurnRate(float Rate);
	void LookUpRate(float Rate);

	//改变状态
	UFUNCTION(BlueprintCallable,Category="Player|State")
	void AddHealth(float value);
	UFUNCTION(BlueprintCallable, Category = "Player|State")
	void AddStamina(float value);
	UFUNCTION(BlueprintCallable, Category = "Player|State")
	void AddCoin(float value);

	//重写TakeDamage方法
	float TakeDamage(float Damage, struct FDamageEvent const& DamageEvent, AController* EventInstigator, AActor* DamageCauser) override;

	//短小精悍
	FORCEINLINE void LeftShiftDown() { bLeftShiftDown = true; }
	FORCEINLINE void LeftShiftUp() { bLeftShiftDown = false; }

	void SetMovementStatus(EPlayerMovementStatus Status);
};

MainPlayer.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "MainPlayer.h"
#include "GameFramework/SpringArmComponent.h"
#include "Camera/CameraComponent.h"
#include "Components/CapsuleComponent.h"
#include "Components/InputComponent.h"
#include "GameFramework/PlayerController.h"
#include "GameFramework/CharacterMovementComponent.h"

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

	SpringArm = CreateDefaultSubobject<USpringArmComponent>(TEXT("SpringArm"));
	SpringArm->SetupAttachment(GetRootComponent());
	//设置SPringArm无碰撞臂长
	SpringArm->TargetArmLength = 600.f;
	SpringArm->bUsePawnControlRotation = true;//硬编码SpringArm继承controlller旋转为真

	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(SpringArm, NAME_None);
	FollowCamera->bUsePawnControlRotation = false;//硬编码FollowCamera继承controlller旋转为假

	//设置胶囊体的默认宽高
	GetCapsuleComponent()->SetCapsuleSize(35.f, 100.f);

	//对Character的Pawn进行硬编码
	bUseControllerRotationPitch = false;
	bUseControllerRotationYaw = false;
	bUseControllerRotationRoll = false;

	//硬编码orient Rotation to Movement,给个默认转向速率
	GetCharacterMovement()->bOrientRotationToMovement = true;
	GetCharacterMovement()->RotationRate = FRotator(0.f, 500.f, 0.f);

	//设置跳跃初始值与在空中的坠落时横向运动控制量
	GetCharacterMovement()->JumpZVelocity = 600.f;
	GetCharacterMovement()->AirControl = 0.15f;

	//给键盘控制转向的速率变量赋初值
	BaseTurnRate = 21.f;
	BaseLookUpRate = 21.f;

	//初始化角色状态
	MaxHealth = 100.f;
	Health = MaxHealth;
	MaxStamina = 200.f;
	Stamina = MaxStamina;
	StaminaConsumeRate = 20.f;
	ExhaustedStamina = 0.167f;
	Coins = 0;
	RunningSpeed = 600.f;
	SprintSpeed = 900.f;
	MovementStatus = EPlayerMovementStatus::EPMS_Normal;
	StaminaStatus = EPlayerStaminaStatus::EPSS_Normal;

	//默认没有按下shift
	bLeftShiftDown = false;
}

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

// Called every frame
void AMainPlayer::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	switch (StaminaStatus)
	{
	case EPlayerStaminaStatus::EPSS_Normal:
		//当Shift按下
		if (bLeftShiftDown)
		{
			if (Stamina - StaminaConsumeRate * DeltaTime <= MaxStamina * ExhaustedStamina)
			{
				StaminaStatus = EPlayerStaminaStatus::EPSS_Exhausted;
			}
			//无论是不是精疲力尽状态都要减去当前帧冲刺消耗的耐力
			Stamina -= StaminaConsumeRate * DeltaTime;
			SetMovementStatus(EPlayerMovementStatus::EPMS_Sprinting);
		}
		else
		{
			//当Shift没有按下,恢复耐力
			Stamina = FMath::Clamp(Stamina + StaminaConsumeRate * DeltaTime, 0.f, MaxStamina);
			SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
		}
		break;
	case EPlayerStaminaStatus::EPSS_Exhausted:
		if (bLeftShiftDown)
		{
			//如果耐力已经为0
			if (Stamina - StaminaConsumeRate * DeltaTime <= 0.f)
			{
				//么我们需要内部编码把shift抬起，此时StaminaStatus状态转换为ExhaustedRecovering状态，然后设置移动状态为Normal
				LeftShiftUp();
				StaminaStatus = EPlayerStaminaStatus::EPSS_ExhaustedRecovering;	
				SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
			}
			else
			{
				Stamina -= StaminaConsumeRate * DeltaTime;
			}
		}
		else
		{
			StaminaStatus = EPlayerStaminaStatus::EPSS_ExhaustedRecovering;
			Stamina = FMath::Clamp(Stamina + StaminaConsumeRate * DeltaTime, 0.f, MaxStamina);
			SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
		}
		break;
	case EPlayerStaminaStatus::EPSS_ExhaustedRecovering:
		//当恢复大于疲劳区时，StaminaStatus状态为Normal
		if (Stamina + StaminaConsumeRate * DeltaTime >= MaxStamina * ExhaustedStamina)
		{
			StaminaStatus = EPlayerStaminaStatus::EPSS_Normal;
		}
		//这状态值肯定是加定了
		Stamina += StaminaConsumeRate * DeltaTime;

		//抬起shift
		LeftShiftUp();
		SetMovementStatus(EPlayerMovementStatus::EPMS_Normal);
		break;
	default:
		break;
	}
}

// Called to bind functionality to input
void AMainPlayer::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);
	//检查PlayerInputComponent指针，check函数只能在这使用
	check(PlayerInputComponent);

	//绑定跳跃轴映射事件
	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &AMainPlayer::Jump);//按下空格
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);//抬起空格

	PlayerInputComponent->BindAction("Sprint", IE_Pressed, this, &AMainPlayer::LeftShiftDown);//按下shift
	PlayerInputComponent->BindAction("Sprint", IE_Released, this, &AMainPlayer::LeftShiftUp);//抬起shift


	//绑定移动轴映射事件
	PlayerInputComponent->BindAxis("MoveForward", this, &AMainPlayer::MoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &AMainPlayer::MoveRight);

	//绑定Controller控制器去管理视角旋转
	PlayerInputComponent->BindAxis("Turn", this, &AMainPlayer::Turn);
	PlayerInputComponent->BindAxis("LookUp", this, &AMainPlayer::LookUp);

	//绑定键盘鼠标轴映射事件
	PlayerInputComponent->BindAxis("TurnRate", this, &AMainPlayer::TurnRate);
	PlayerInputComponent->BindAxis("LookUpRate", this, &AMainPlayer::LookUpRate);

}

void AMainPlayer::Jump()
{
	//继承父类的方法
	Super::Jump();
}

void AMainPlayer::MoveForward(float value)
{
	if (Controller != nullptr && value != 0.f)
	{
		//获取到Control旋转
		FRotator Rotation = Controller->GetControlRotation();
		//转向只关注水平Yaw方向，因此置0防止影响
		FRotator YowRotation = FRotator(0.0f, Rotation.Yaw, 0.0f);
		//获取相机(鼠标控制器的朝向)，并且朝这个轴的方向移动
		FVector Direction = FRotationMatrix(YowRotation).GetUnitAxis(EAxis::X);
		AddMovementInput(Direction, value);
	}

}

void AMainPlayer::MoveRight(float value)
{
	if (Controller != nullptr && value != 0.f)
	{
		//获取到Controller旋转
		FRotator Rotation = Controller->GetControlRotation();
		//转向只关注水平Yaw方向，因此置0防止影响
		FRotator YowRotation = FRotator(0.0f, Rotation.Yaw, 0.0f);
		//获取相机(鼠标控制器的朝向)，并且朝这个轴的方向移动
		FVector Direction = FRotationMatrix(YowRotation).GetUnitAxis(EAxis::Y);
		AddMovementInput(Direction, value);
	}
}

void AMainPlayer::Turn(float Value)
{
	if (Value != 0.f)
	{
		AddControllerYawInput(Value);
	}
	
}

void AMainPlayer::LookUp(float Value)
{
	//UE_LOG(LogTemp, Warning, TEXT("%f"), GetControlRotation().Pitch);

	//控制视角
	if (GetControlRotation().Pitch < 270.f && GetControlRotation().Pitch >180.f && Value > 0.f)
	{
		return;
	}
	else if (GetControlRotation().Pitch < 180.f && GetControlRotation().Pitch >45.f && Value < 0.f)
	{
		return;
	}
	AddControllerPitchInput(Value);
}

void AMainPlayer::TurnRate(float Rate)
{
	//要乘以一个DeltaTime这样就可以避免高帧底帧差值问题
	float Value = Rate * BaseTurnRate * GetWorld()->GetDeltaSeconds();
	if (Value != 0.f)
	{
		AddControllerYawInput(Value);
	}
}

void AMainPlayer::LookUpRate(float Rate)
{
	//要乘以一个DeltaTime这样就可以避免高帧底帧差值问题
	float Value = Rate * BaseLookUpRate * GetWorld()->GetDeltaSeconds();
	//控制视角
	if (GetControlRotation().Pitch < 270.f && GetControlRotation().Pitch >180.f && Value > 0.f)
	{
		return;
	}
	else if (GetControlRotation().Pitch < 180.f && GetControlRotation().Pitch >45.f && Value < 0.f)
	{
		return;
	}
	AddControllerPitchInput(Value);

}

void AMainPlayer::AddHealth(float value)
{
	Health = FMath::Clamp(Health + value, 0.f, MaxHealth);
}

void AMainPlayer::AddStamina(float value)
{
	Stamina = FMath::Clamp(Stamina + value, 0.f, MaxStamina);
}

void AMainPlayer::AddCoin(float value)
{
	Coins += value;
}

float AMainPlayer::TakeDamage(float Damage, FDamageEvent const& DamageEvent, AController* EventInstigator, AActor* DamageCauser)
{
	if (Health - Damage <= 0.f)
	{
		Health = FMath::Clamp(Health - Damage, 0.f, MaxHealth);
		//TODO Die();
	}
	else
	{
		Health -= Damage;
	}
	return Health;
}

void AMainPlayer::SetMovementStatus(EPlayerMovementStatus Status)
{
	MovementStatus = Status;
	//切换状态的时候改变移动速度
	switch (MovementStatus)
	{
	case EPlayerMovementStatus::EPMS_Sprinting:
		GetCharacterMovement()->MaxWalkSpeed = SprintSpeed;
		break;
	default:
		GetCharacterMovement()->MaxWalkSpeed = RunningSpeed;
		break;
	}
}

本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若转载，请注明出处：http://www.coloradmin.cn/o/1217556.html

如若内容造成侵权/违法违规/事实不符，请联系多彩编程网进行投诉反馈，一经查实，立即删除！

相关文章

【Gitpod】云部署Stable Diffusion并且可以本地访问

【Gitpod】云部署Stable Diffusion并且可以本地访问

文章目录 前言项目部署 项目启动参考文献 前言 本文介绍如何使用 Gitpod 部署 Stable Diffusion web UI。Gitpod 是一个基于云的开发环境&#xff0c;通过与 GitHub 集成&#xff0c;可以在浏览器中轻松进行代码开发和部署&#xff1b;Stable Diffusion 是 GitHub 上面的开源 …
阅读更多...
2023 OPPO开发者大会正式开幕，ColorOS 14亮相，手机流畅进入「最后一公里」比拼

2023 OPPO开发者大会正式开幕，ColorOS 14亮相，手机流畅进入「最后一公里」比拼

2023年11月16日,OPPO开发者大会正式开幕,万众期待的ColorOS 14正式发布,并且已经确定,将由OPPO Reno11系列首发。 本次的ColorOS 14将OPPO之前布局的AndesGPT、潘塔纳尔自研系统、超算平台三大技术全面整合,带来全新智慧新体验。智慧互融,化繁为简;软硬芯协同,设备流畅度全面进…
阅读更多...
SDL音视频渲染

SDL音视频渲染

01-SDL简介 官网&#xff1a;https://www.libsdl.org/ 文档&#xff1a;http://wiki.libsdl.org/Introduction SDL&#xff08;Simple DirectMedia Layer&#xff09;是一套开放源代码的跨平台多媒体开发库&#xff0c;使用C语言写成。SDL提供了数种控制图像、声音、输出入的函…
阅读更多...
数字化转型的“支点”是什么？

数字化转型的“支点”是什么？

​当前&#xff0c;数字化转型在推动各行各业降本增效的过程中扮演着越来越重要的角色&#xff0c;数字化转型不仅可以提高企业的生产效率和降低企业生产经营成本&#xff0c;也成为了推动经济发展的新引擎。对于企业而言&#xff0c;想要成功推动企业数字化转型&#xff0c;不…
阅读更多...
【路径穿越】vulfocus/apache-cve_2021_41773

【路径穿越】vulfocus/apache-cve_2021_41773

1.1漏洞描述 漏洞编号cve_2021_41773漏洞类型路径穿越漏洞等级高危漏洞环境vulfocus攻击方式 1.2漏洞等级 高危 1.3影响版本 Apache HTTP Server 2.4.49、2.4.50 1.4漏洞复现 1.4.1.基础环境 靶场VULFOCUS工具BurpSuite 1.4.2.前提 1.5深度利用 1.5.1漏洞点 利用网上爆出…
阅读更多...
干货分享！各大跨境电商平台入驻指南及跨境电商实用工具推荐！

干货分享！各大跨境电商平台入驻指南及跨境电商实用工具推荐！

当跨境电商成为一个所有人都耳熟能详的名词&#xff0c;各类跨境电商平台和软件都一拥而上&#xff0c;跨境电商平台和工具千千万&#xff0c;那么很多人就在问了&#xff0c;该怎么入驻这些电商平台呢&#xff1f;又该选择什么样的跨境电商软件呢&#xff1f;今天这期干货分享…
阅读更多...
event事件分发器||静态类型转换

event事件分发器||静态类型转换

由于类型不一样在event事件分发器中要进行静态类型转换&#xff0c;将基类转换为派生类进行处理 对event事件分发器拦截后最后要将其他函数交给父类处理&#xff0c;否则不会运行
阅读更多...
Confluence的安装部署

Confluence的安装部署

先介绍一下confluence Confluence是一个专业的企业知识管理与协同软件&#xff0c;也可以用于构建企业wiki。使用简单&#xff0c;但它强大的编辑和站点管理特征能够帮助团队成员之间共享信息、文档协作、集体讨论&#xff0c;信息推送。 confluence是Atlassian公司的&#x…
阅读更多...
Mysql分组查询每组最新的一条数据

Mysql分组查询每组最新的一条数据

在工作中遇到一个问题&#xff0c;需要查出每个公司最新的那条数据。 所以需根据公司进行分组&#xff1a; 未进行分组时&#xff1a; select a.id, b.name companyName, result_asset ,result_liability ,result_net_asset, a.create_time ,a.is_deleted from bus_proper…
阅读更多...
【Git操作】Author identity unknown Please tell me who you are

【Git操作】Author identity unknown Please tell me who you are

前言 这错误主要是在上传到Gitee的时候&#xff0c;我们没有设置用户名和和邮箱&#xff0c;原因有很多&#xff0c;更换设备&#xff0c;或者第一次提交的时候都会遇到这个问题&#xff0c;我们只需要在终端简单的输入两行指令就可以解决。 git config --global user.email &q…
阅读更多...
都有哪些大厂有自己的Web组件库？

都有哪些大厂有自己的Web组件库？

有TDesign、ArcoDesign、AntDesign、随着Materialdesign等优秀web组件库的发布&#xff0c;设计师可能会觉得大厂之间的web组件库差别不大。其实大厂的产品线很多&#xff0c;业务复杂。设计系统是对以往项目经验的深刻沉淀&#xff0c;可以支撑业务逻辑&#xff0c;保证设计系…
阅读更多...
个人简历管理系统winform

个人简历管理系统winform

说明文档 运行前附加数据库.mdf&#xff08;或sql生成数据库&#xff09; 主要技术&#xff1a; 基于C#winform架构和sql server数据库 功能模块&#xff1a; 个人简历管理系统 简历信息添加 修改 删除 查询简历 运行环境&#xff1a; 运行需vs2013或者以上版本&#xff0…
阅读更多...
关于新能源汽车的英语翻译

关于新能源汽车的英语翻译

近年来&#xff0c;随着全球对环保和可持续发展的重视&#xff0c;新能源汽车已经成为汽车产业的重要发展方向。各国政府和企业都在加大投入&#xff0c;推动新能源汽车的技术研发和产业化发展&#xff0c;进而促进了新能源汽车翻译的需求不断提升 。那么&#xff0c;关于新能源…
阅读更多...
【JUC】八、阻塞队列

【JUC】八、阻塞队列

文章目录 1、阻塞队列概述2、阻塞队列分类3、 阻塞队列的四组核心方法4、Demo 队列&#xff0c;先进先出&#xff0c;类似排队栈&#xff0c;先进后出&#xff0c;用于要优先处理最近发生的事件的场景 1、阻塞队列概述 阻塞队列&#xff0c;一个生产消费模式&#xff0c;当&a…
阅读更多...
【Ubuntu】Windows远程Ubuntu系统

【Ubuntu】Windows远程Ubuntu系统

步骤 开启ssh服务并开放22端口关闭防火墙ufw或iptables &#xff1b;或者将远程端口添加到入站与出站规则安装xrdp并将xrdp用户添加到ssl-cert用户组mstsc 远程&#xff0c;输入账号密码 1、开启ssh服务 1.1. 查看ssh是否已经开启 sudo ps -e | grep ssh如果最后返回是sshd…
阅读更多...
Scrapy----Scrapy简介

Scrapy----Scrapy简介

文章目录 概述与应用背景架构和组件功能和特点社区生态概述与应用背景 Scrapy，一个高效、灵活、且强大的Web爬取框架，被广泛应用于数据抓取和网页内容的结构化提取。它是用Python编写的，支持多平台运行，适用于数据挖掘、在线零售信息收集、历史数据存档等多种场景。Scrapy…
阅读更多...
Jenkins-Windows节点-参数传入中文乱码的问题

Jenkins-Windows节点-参数传入中文乱码的问题

方法一 设置环境变量 变量名&#xff1a;JAVA_TOOL_OPTIONS 变量值&#xff1a;-Dfile.encodingUTF8 还是有部分中文会乱码&#xff0c;进行区域设置
阅读更多...
短视频账号矩阵系统源码

短视频账号矩阵系统源码

短视频账号矩阵系统源码搭建步骤包括以下几个方面&#xff1a; 1. 确定账号类型和目标受众&#xff1a;确定要运营的短视频账号类型&#xff0c;如搞笑、美食、美妆等&#xff0c;并明确目标受众和定位。 2. 准备账号资料&#xff1a;准备相关资质和资料&#xff0c;如营业执照…
阅读更多...
uniapp Android如何授权打开系统蓝牙Bluetooth？

uniapp Android如何授权打开系统蓝牙Bluetooth？

uniapp Android如何授权打开系统蓝牙&#xff1f; 使用uniapp开发蓝牙项目过程中&#xff0c;涉及到检测手机系统蓝牙是否打开功能&#xff0c;这里介绍Android&#xff0c;iOS暂时没有找到优方法。朋友们如果有好的方案&#xff0c;欢迎评论分享~ 文章目录 uniapp Android如何…
阅读更多...
【数据库原理及应用教程】第三章 SQL

【数据库原理及应用教程】第三章 SQL

文章目录 建立数据库创建数据库选择元组select多表查询 追加元组 insert嵌套子查询 元组删除命令 deleteUpdate命令 修正与撤销数据库SQL-DDL撤销与修改撤销基本表指定数据库关闭数据库 建立数据库 学生选课数据库SCT 学生表&#xff1a;Student(SNo char(8), Sname char(10)…
阅读更多...
推荐文章
最新文章

Copyright @ 2022~2023