Unreal Engine C++ Developer: Learn C++ and Make Video Games | Udemy UE4.25 Simple Shooterで自分なりに理解したこと。01000 ～ブループリント純粋関数ノードを作る ～

public:	
	UFUNCTION(BluePrintPure)
	bool IsDead() const;

bool AShooterCharacter::IsDead() const
{
	return Health <= 0;
}

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

#pragma once

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

class AGun;


UCLASS()
class SIMPLESHOOTERCP2_API AShooterCharacter : public ACharacter
{
	GENERATED_BODY()

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

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

public:	
	UFUNCTION(BluePrintPure)
	bool IsDead() const;

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

	// Called to bind functionality to input
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;
	
	virtual float TakeDamage(float DamageAmount, struct FDamageEvent const& DamageEvent, class AController* EventInstigator, AActor* DamageCauser) override;

private:
	void MoveForward(float AxisValue);
	void MoveRight(float AxisValue);
	void LockUpRate(float AxisValue);
	void LockRightRate(float AxisValue);
	void Shoot();
	
	UPROPERTY(EditAnyWhere)
	float RotationRate = 10;

	UPROPERTY(EditDefaultsOnly)
	float MaxHealth=100;

	UPROPERTY(VisibleAnyWhere)
	float Health;

	UPROPERTY(EditDefaultsOnly)
	TSubclassOf<AGun> GunClass;

	UPROPERTY()
	AGun* Gun;


};

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


#include "ShooterCharacter.h"
#include "Gun.h"
//#include "Engine/Engine.h"
// Sets default values
AShooterCharacter::AShooterCharacter()
{
 	// 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;

}

// Called when the game starts or when spawned
void AShooterCharacter::BeginPlay()
{
	Super::BeginPlay();
	
	Health = MaxHealth;

	Gun = GetWorld()->SpawnActor<AGun>(GunClass);
	GetMesh()->HideBoneByName(TEXT("weapon_r"),EPhysBodyOp::PBO_None );
	Gun->AttachToComponent(GetMesh(), FAttachmentTransformRules::KeepRelativeTransform, TEXT("weaponSocket"));
	Gun->SetOwner(this);
}
bool AShooterCharacter::IsDead() const
{
	return Health <= 0;
}
// Called every frame
void AShooterCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

void AShooterCharacter::Shoot()
{
	Gun->PullTrigger();
}

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

	PlayerInputComponent ->BindAxis(TEXT("MoveForward"),this,&AShooterCharacter::MoveForward);
	PlayerInputComponent ->BindAxis(TEXT("LockUp"),this,&APawn::AddControllerPitchInput);
	PlayerInputComponent ->BindAxis(TEXT("MoveRight"),this,&AShooterCharacter::MoveRight);
	PlayerInputComponent ->BindAxis(TEXT("LockRight"),this,&APawn::AddControllerYawInput);
	PlayerInputComponent ->BindAxis(TEXT("LockUpRate"),this,&AShooterCharacter::LockUpRate);
	PlayerInputComponent ->BindAxis(TEXT("LockRightRate"),this,&AShooterCharacter::LockRightRate);
	PlayerInputComponent ->BindAction(TEXT("Jump"),EInputEvent::IE_Pressed,this,&ACharacter::Jump);
	PlayerInputComponent ->BindAction(TEXT("Shoot"),EInputEvent::IE_Pressed,this,&AShooterCharacter::Shoot);
}

float AShooterCharacter::TakeDamage(float DamageAmount, struct FDamageEvent const& DamageEvent, class AController* EventInstigator, AActor* DamageCauser)
{
	float DamageToApply = Super::TakeDamage(DamageAmount,DamageEvent,EventInstigator,DamageCauser);
	DamageToApply = FMath::Min(Health,DamageToApply);
	Health -= DamageToApply;
	UE_LOG(LogTemp,Display,TEXT("Health Left %F"),Health);
	float TimeToDisplay =5.0f;
	FString Health_str = FString::SanitizeFloat(Health);
	FString TestHUDString =TEXT("Health Left")+	Health_str;
	GEngine->AddOnScreenDebugMessage(-1,TimeToDisplay,FColor::Green,TestHUDString);
	return DamageToApply;
}

void AShooterCharacter::MoveForward(float AxisValue)
{
	AddMovementInput(GetActorForwardVector() * AxisValue);
}
void AShooterCharacter::MoveRight(float AxisValue)
{
	AddMovementInput(GetActorRightVector() * AxisValue);
}

void AShooterCharacter::LockUpRate(float AxisValue)
{
	AddControllerPitchInput(AxisValue * RotationRate * GetWorld()->GetDeltaSeconds());
}
void AShooterCharacter::LockRightRate(float AxisValue)
{
	AddControllerYawInput(AxisValue * RotationRate * GetWorld()->GetDeltaSeconds());
}
// void AShooterCharacter::LockUp(float AxisValue)
// {
// 	AddControllerPitchInput(AxisValue);
// }