Vector3.cpp

#include "Vector3.h"

Vector3::Vector3() { this->x = this->y = this->z = 0; }

Vector3::Vector3(double x, double y, double z) {
	this->x = x;
	this->y = y;
	this->z = z;
}

Vector3::~Vector3() {}

Vector3 Vector3::operator+(const Vector3& v) {
	Vector3 *v1 = new Vector3(this->x + v.x, this->y + v.y, this->z + v.z); 
	return *v1;
}

Vector3 Vector3::operator-(const Vector3& v) {
	Vector3 v1 = Vector3(this->x - v.x, this->y - v.y, this->z - v.z);
	return v1;
}

void Vector3::negate() {
	x = -x;
	y = -y;
	z = -z;
}

void Vector3::scale(double s) {
	x = s * x;
	y = s * y;
	z = s * z;
}

double Vector3::dot(const Vector3& v1, const Vector3& v2) {
	return(v1.x * v2.x + v1.y * v2.y + v1.z *v2.z);
}

Vector3 Vector3::cross(const Vector3& v1, const Vector3& v2) {
	double xn = v1.y * v2.z - v1.z * v2.y;
	double yn = v1.z * v2.x - v1.x * v2.z;
	double zn = v1.x * v2.y - v1.y * v2.x;
	Vector3 v3 = Vector3(xn, yn, zn);
	return v3;
}

double Vector3::length() {
	return(sqrt(x*x + y*y + z*z));
}

void Vector3::normalize() {
	scale(1.0 / length());
}

void Vector3::print(std::string s) {
	//printf("%s \n %d %d %d \n", s, x, y, z);
	std::cout << s << x << " " << y << " " << z << std::endl;
}