// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
#pragma once

#include "GameFramework/SpringArmComponent.h"
#include "thirdpersontestCharacter.generated.h"

UCLASS(config=Game)
class AthirdpersontestCharacter : public ACharacter
{
	GENERATED_UCLASS_BODY()

	/** Camera boom positioning the camera behind the character */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Camera)
	TSubobjectPtr<class USpringArmComponent> CameraBoom;

	/** Follow camera */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Camera)
	TSubobjectPtr<class UCameraComponent> FollowCamera;

	/** Base turn rate, in deg/sec. Other scaling may affect final turn rate. */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Camera)
	float BaseTurnRate;

	/** Base look up/down rate, in deg/sec. Other scaling may affect final rate. */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category=Camera)
	float BaseLookUpRate;

protected:

	/** Called for forwards/backward input */
	void MoveForward(float Value);

	/** Called for side to side input */
	void MoveRight(float Value);

	/** 
	 * Called via input to turn at a given rate. 
	 * @param Rate	This is a normalized rate, i.e. 1.0 means 100% of desired turn rate
	 */
	void TurnAtRate(float Rate);

	/**
	 * Called via input to turn look up/down at a given rate. 
	 * @param Rate	This is a normalized rate, i.e. 1.0 means 100% of desired turn rate
	 */
	void LookUpAtRate(float Rate);

	/** Handler for when a touch input begins. */
	void TouchStarted(ETouchIndex::Type FingerIndex, FVector Location);

protected:
	// APawn interface
	virtual void SetupPlayerInputComponent(class UInputComponent* InputComponent) OVERRIDE;
	// End of APawn interface
};

// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.

#include "thirdpersontest.h"
#include "thirdpersontestCharacter.h"

//////////////////////////////////////////////////////////////////////////
// AthirdpersontestCharacter

AthirdpersontestCharacter::AthirdpersontestCharacter(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	// Set size for collision capsule
	CapsuleComponent->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
	CharacterMovement->bOrientRotationToMovement = true; // Character moves in the direction of input...	
	CharacterMovement->RotationRate = FRotator(0.0f, 540.0f, 0.0f); // ...at this rotation rate
	CharacterMovement->JumpZVelocity = 600.f;
	CharacterMovement->AirControl = 0.2f;

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

	// Create a follow camera
	FollowCamera = PCIP.CreateDefaultSubobject<UCameraComponent>(this, TEXT("FollowCamera"));
	FollowCamera->AttachTo(CameraBoom, USpringArmComponent::SocketName); // Attach the camera to the end of the boom and let the boom adjust to match the controller orientation
	FollowCamera->bUseControllerViewRotation = false; // Camera does not rotate relative to arm

	// 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 AthirdpersontestCharacter::SetupPlayerInputComponent(class UInputComponent* InputComponent)
{
	// Set up gameplay key bindings
	check(InputComponent);
	InputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);

	InputComponent->BindAxis("MoveForward", this, &AthirdpersontestCharacter::MoveForward);
	InputComponent->BindAxis("MoveRight", this, &AthirdpersontestCharacter::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
	InputComponent->BindAxis("Turn", this, &APawn::AddControllerYawInput);
	InputComponent->BindAxis("TurnRate", this, &AthirdpersontestCharacter::TurnAtRate);
	InputComponent->BindAxis("LookUp", this, &APawn::AddControllerPitchInput);
	InputComponent->BindAxis("LookUpRate", this, &AthirdpersontestCharacter::LookUpAtRate);

	// handle touch devices
	InputComponent->BindTouch(EInputEvent::IE_Pressed, this, &AthirdpersontestCharacter::TouchStarted);
}


void AthirdpersontestCharacter::TouchStarted(ETouchIndex::Type FingerIndex, FVector Location)
{
	// jump, but only on the first touch
	if (FingerIndex == ETouchIndex::Touch1)
	{
		Jump();
	}
}

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

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

void AthirdpersontestCharacter::MoveForward(float Value)
{
	if ((Controller != NULL) && (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(Rotation).GetUnitAxis(EAxis::X);
		AddMovementInput(Direction, Value);
	}
}

void AthirdpersontestCharacter::MoveRight(float Value)
{
	if ( (Controller != NULL) && (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);
	}
}

ENTITY* john = ent_create(SPHERE_MDL,vector(0,0,0),NULL);
ENTITY* bill = ent_create(SPHERE_MDL,vector(10,0,0),NULL);
if (vec_dist(&(john->x),&(bill->x)) > 100)
   bill->x += 10;