vector3.h

#ifndef VECTOR3_H_
#define VECTOR3_H_
 
#include <cmath>
#include <iostream>
#include <vector>
 
class Vector3 {
 public:
  double x = 0;
  double y = 0;
  double z = 0;
 
  Vector3();
 
  Vector3(double a);
 
  Vector3(double a, double b, double c);
 
  Vector3(const std::vector<double>& v);
 
  Vector3(const std::vector<float>& v);
 
  bool operator==(const Vector3& v) const;
 
  double& operator[](int i);
 
  double operator[](int i) const;
 
  Vector3 operator+(const Vector3& v) const;
 
  Vector3 operator-(const Vector3& v) const;
 
  Vector3 operator*(double s) const;
 
  Vector3 operator/(double s) const;
 
  double operator*(const Vector3& v) const;
 
  template <class T>
  std::vector<T> vec() const {
    return {static_cast<T>(x), static_cast<T>(y), static_cast<T>(z)};
  }
 
  Vector3 cross(const Vector3& v) const;
 
  double magnitude() const;
 
  Vector3& normalize();
 
  Vector3 unit() const;
 
  double dist(const Vector3& v) const;
 
  friend std::ostream& operator<<(std::ostream& strm, const Vector3& v);
};
 
#endif