MyProjectCharacter.cpp

// Copyright Epic Games, Inc. All Rights Reserved.

#include "MyProjectCharacter.h"
#include "HeadMountedDisplayFunctionLibrary.h"
#include "Camera/CameraComponent.h"
#include "Components/CapsuleComponent.h"
#include "Components/InputComponent.h"
#include "GameFramework/CharacterMovementComponent.h"
#include "GameFramework/Controller.h"
#include "GameFramework/SpringArmComponent.h"
#include "MyAnimInstance.h"
#include "MyWeapon.h"

//////////////////////////////////////////////////////////////////////////
// AMyProjectCharacter

AMyProjectCharacter::AMyProjectCharacter()
{
	// Set size for collision capsule
	GetCapsuleComponent()->InitCapsuleSize(42.f, 96.0f);

	// set our turn rates for input
	BaseTurnRate = 45.f;
	BaseLookUpRate = 45.f;

	// Don't rotate when the controller rotates. Let that just affect the camera.
	bUseControllerRotationPitch = false;
	bUseControllerRotationYaw = false;
	bUseControllerRotationRoll = false;

	// Configure character movement
	GetCharacterMovement()->bOrientRotationToMovement = true; // Character moves in the direction of input...	
	GetCharacterMovement()->RotationRate = FRotator(0.0f, 540.0f, 0.0f); // ...at this rotation rate
	GetCharacterMovement()->JumpZVelocity = 600.f;
	GetCharacterMovement()->AirControl = 0.2f;

	// Create a camera boom (pulls in towards the player if there is a collision)
	CameraBoom = CreateDefaultSubobject<USpringArmComponent>(TEXT("CameraBoom"));
	CameraBoom->SetupAttachment(RootComponent);
	CameraBoom->TargetArmLength = 300.0f; // The camera follows at this distance behind the character	
	CameraBoom->bUsePawnControlRotation = true; // Rotate the arm based on the controller

	// Create a follow 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 orientation
	FollowCamera->bUsePawnControlRotation = false; // Camera does not rotate relative to arm

	Pistol = CreateDefaultSubobject<USkeletalMeshComponent>(TEXT("Pistol"));
	Pistol->SetupAttachment(RootComponent);
	Pistol->AttachToComponent(GetMesh(), FAttachmentTransformRules::SnapToTargetNotIncludingScale, FName(TEXT("spine_pistol")));

	Rifle = CreateDefaultSubobject<USkeletalMeshComponent>(TEXT("Rifle"));
	Rifle->SetupAttachment(RootComponent);
	Rifle->AttachToComponent(GetMesh(), FAttachmentTransformRules::SnapToTargetNotIncludingScale, FName(TEXT("spine_rifle")));

	// Note: The skeletal mesh and anim blueprint references on the Mesh component (inherited from Character) 
	// are set in the derived blueprint asset named MyCharacter (to avoid direct content references in C++)
}

//////////////////////////////////////////////////////////////////////////
// Input

void AMyProjectCharacter::SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent)
{
	// Set up gameplay key bindings
	check(PlayerInputComponent);
	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);

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

	// We have 2 versions of the rotation bindings to handle different kinds of devices differently
	// "turn" handles devices that provide an absolute delta, such as a mouse.
	// "turnrate" is for devices that we choose to treat as a rate of change, such as an analog joystick
	PlayerInputComponent->BindAxis("Turn", this, &APawn::AddControllerYawInput);
	PlayerInputComponent->BindAxis("TurnRate", this, &AMyProjectCharacter::TurnAtRate);
	PlayerInputComponent->BindAxis("LookUp", this, &APawn::AddControllerPitchInput);
	PlayerInputComponent->BindAxis("LookUpRate", this, &AMyProjectCharacter::LookUpAtRate);

	// handle touch devices
	PlayerInputComponent->BindTouch(IE_Pressed, this, &AMyProjectCharacter::TouchStarted);
	PlayerInputComponent->BindTouch(IE_Released, this, &AMyProjectCharacter::TouchStopped);

	// VR headset functionality
	PlayerInputComponent->BindAction("ResetVR", IE_Pressed, this, &AMyProjectCharacter::OnResetVR);

	// Equip Weapons
	PlayerInputComponent->BindAction("Sidearm", IE_Pressed, this, &AMyProjectCharacter::EquipSidearm);
	PlayerInputComponent->BindAction("Rifle", IE_Pressed, this, &AMyProjectCharacter::EquipRifle);
}


void AMyProjectCharacter::OnResetVR()
{
	// If MyProject is added to a project via 'Add Feature' in the Unreal Editor the dependency on HeadMountedDisplay in MyProject.Build.cs is not automatically propagated
	// and a linker error will result.
	// You will need to either:
	//		Add "HeadMountedDisplay" to [YourProject].Build.cs PublicDependencyModuleNames in order to build successfully (appropriate if supporting VR).
	// or:
	//		Comment or delete the call to ResetOrientationAndPosition below (appropriate if not supporting VR)
	UHeadMountedDisplayFunctionLibrary::ResetOrientationAndPosition();
}

void AMyProjectCharacter::TouchStarted(ETouchIndex::Type FingerIndex, FVector Location)
{
		Jump();
}

void AMyProjectCharacter::TouchStopped(ETouchIndex::Type FingerIndex, FVector Location)
{
		StopJumping();
}

void AMyProjectCharacter::TurnAtRate(float Rate)
{
	// calculate delta for this frame from the rate information
	AddControllerYawInput(Rate * BaseTurnRate * GetWorld()->GetDeltaSeconds());
}

void AMyProjectCharacter::LookUpAtRate(float Rate)
{
	// calculate delta for this frame from the rate information
	AddControllerPitchInput(Rate * BaseLookUpRate * GetWorld()->GetDeltaSeconds());
}

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

		// get forward vector
		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::X);
		AddMovementInput(Direction, Value);
	}
}

void AMyProjectCharacter::MoveRight(float Value)
{
	if ( (Controller != nullptr) && (Value != 0.0f) )
	{
		// find out which way is right
		const FRotator Rotation = Controller->GetControlRotation();
		const FRotator YawRotation(0, Rotation.Yaw, 0);
	
		// get right vector 
		const FVector Direction = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::Y);
		// add movement in that direction
		AddMovementInput(Direction, Value);
	}
}

void AMyProjectCharacter::EquipSidearm()
{

	if (MyWeapons.Contains("Pistol") == false)
	{
		UE_LOG(LogTemp, Warning, TEXT("No Pistol"));
		return;
	}

	UMyAnimInstance* AnimInstance = Cast<UMyAnimInstance>(GetMesh()->GetAnimInstance());

	if (AnimInstance != nullptr && EquipSidearmMontage != nullptr)
	{
		AnimInstance->bHoldingSidearmAnim = !AnimInstance->bHoldingSidearmAnim;
		if (AnimInstance->bHoldingSidearmAnim)
		{
			// I could set current weapon here
			// I don't like having the current weapon depend on an animation instance boolean, but that'll be something I can refactor in the future.
			AMyWeapon* CurrentWeapon = *MyWeapons.Find("Pistol");
			UE_LOG(LogTemp, Warning, TEXT("Damage, %d"), CurrentWeapon->Damage);
		}

		PlayAnimMontage(EquipSidearmMontage, 1.5f);
	}
}

void AMyProjectCharacter::EquipRifle()
{
	if (MyWeapons.Contains("Rifle") == false)
	{
		UE_LOG(LogTemp, Warning, TEXT("No Rifle"));
		return;
	}

	UMyAnimInstance* AnimInstance = Cast<UMyAnimInstance>(GetMesh()->GetAnimInstance());

	if (AnimInstance != nullptr && EquipRifleMontage != nullptr)
	{
		AnimInstance->bHoldingRifleAnim = !AnimInstance->bHoldingRifleAnim;
		PlayAnimMontage(EquipRifleMontage, 1.5f);
	}
}