#include "Vector3D.h"

Vector3D::Vector3D()
{
	SetX(1);
	SetY(1);
	SetZ(1);
}

Vector3D::Vector3D(float x, float y, float z)
{
	SetX(x);
	SetY(y);
	SetZ(z);
}

Vector3D::Vector3D(const Vector3D& other)
{
	Copy(other);
}

Vector3D::~Vector3D()
{
}

// Accessors
float Vector3D::GetX() const
{
	return _x;
}

void Vector3D::SetX(const float x)
{
	_x = x;
}

float Vector3D::GetY() const
{
	return _y;
}

void Vector3D::SetY(const float y)
{
	_y = y;
}

float Vector3D::GetZ() const 
{
	return _z;
}

void Vector3D::SetZ(const float z)
{
	_z = z;
}

void Vector3D::Normalize()
{
	float length = sqrt(_x * _x + _y * _y + _z * _z);

	if (length != 0)
	{
		_x /= length;
		_y /= length;
		_z /= length;
	}
}

float Vector3D::DotProduct(const Vector3D v1, const Vector3D v2)
{	
	return ((v1.GetX() * v2.GetX()) + (v1.GetY() * v2.GetY()) + (v1.GetZ() * v2.GetZ()));
}

Vector3D Vector3D::CrossProduct(const Vector3D v1, const Vector3D v2)
{
	return Vector3D((v1.GetY() * v2.GetZ()) - (v1.GetZ() * v2.GetY()), (v1.GetZ() * v2.GetX()) - (v1.GetX() * v2.GetZ()), (v1.GetX() * v2.GetY()) - (v1.GetY() * v2.GetX()));
}


const Vector3D Vector3D::operator+ (const Vector3D& rhs) const
{
	return Vector3D(_x + rhs.GetX(), _y + rhs.GetY(), _z + rhs.GetZ());
}

void Vector3D::Copy(const Vector3D& other)
{
	_x = other.GetX();
	_y = other.GetY();
	_z = other.GetZ();
}