(Unreal : Basic) 37. Charater Class-3

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

#pragma once

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

UCLASS()
class BASIC_API AMain : public ACharacter
{
	GENERATED_BODY()

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

	/** Camera boom positioning the camera begind the player */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera, meta = (AllowPrivateAccess = "true"))
	class USpringArmComponent* CameraBoom;

	/** Follow Camera */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera, meta = (AllowPrivateAccess = "true"))
	class UCameraComponent* FollowCamera;

	/** Base turn rates to scale turning functions for the Camera */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera)
	float BaseTurnRate;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera)
	float BaseLookUpRate;

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;

	/** Called for forward/backword input */
	void MoveForward(float value);

	void MoveRight(float value);

	/**
	* @param Rate This is a nomalized rate, i.e. 1.0 meas 100%
	*/
	void TurnAtRate(float Rate);

	void LookUpAtRate(float Rate);

	FORCEINLINE class USpringArmComponent* GetCameraBoom() const { return CameraBoom; }
	FORCEINLINE class UCameraComponent* GetFollowCamera() const { return FollowCamera; }
};

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


#include "Main.h"
#include <Engine/Classes/GameFramework/SpringArmComponent.h>
#include <Engine/Classes/Camera/CameraComponent.h>
#include <Engine/Classes/Engine/World.h>

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

	// Create Camera Boom (pulls towards the player if there's a collision
	CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
	CameraBoom->SetupAttachment(GetRootComponent());
	// Camera follows at this distance
	CameraBoom->TargetArmLength = 600.f;	
	// Rotate arm based on controller
	CameraBoom->bUsePawnControlRotation = true;

	// Create Foloow Camera
	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	FollowCamera->SetupAttachment(CameraBoom, USpringArmComponent::SocketName);
	// Attach the camera to the end of the boom and let the boom adjust to match
	// the controller origintation
	FollowCamera->bUsePawnControlRotation = false;

	// Set our turn rates for input
	BaseTurnRate = 65.f;
	BaseLookUpRate = 65.f;
}

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

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

}

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

	check(PlayerInputComponent);	// check valid

	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);

	PlayerInputComponent->BindAxis("MoveForward", this, &AMain::MoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &AMain::MoveRight);

	PlayerInputComponent->BindAxis("Turn", this, &APawn::AddControllerYawInput);
	PlayerInputComponent->BindAxis("LookUp", this, &APawn::AddControllerPitchInput);

	PlayerInputComponent->BindAxis("TurnRate", this, &AMain::TurnAtRate);
	PlayerInputComponent->BindAxis("LookUpRate", this, &AMain::LookUpAtRate);
}

void AMain::MoveForward(float value)
{
	if (Controller != nullptr && value != 0.0f)
	{
		// find out which way is forward
		const FRotator Rotation = Controller->GetControlRotation();
		const FRotator YawRotation(0.f, Rotation.Yaw, 0.f);

		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::X);
		AddMovementInput(Direction, value);
	}
}

void AMain::MoveRight(float value)
{
	if (Controller != nullptr && value != 0.0f)
	{
		// find out which way is forward
		const FRotator Rotation = Controller->GetControlRotation();
		const FRotator YawRotation(0.f, Rotation.Yaw, 0.f);

		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::Y);
		AddMovementInput(Direction, value);
	}
}

void AMain::TurnAtRate(float Rate)
{
	AddControllerYawInput(Rate * BaseTurnRate * GetWorld()->GetDeltaSeconds());
}

void AMain::LookUpAtRate(float Rate)
{
	AddControllerPitchInput(Rate * BaseLookUpRate * GetWorld()->GetDeltaSeconds());
}