#ifndef VECTOR_H
#define VECTOR_H VECTOR_H

#include <iostream>

class Vector
{
    public:
        Vector();
        Vector(double x, double y, double z);
        static Vector randomVector();
        double & operator[](int idx) { return m_array[idx]; }
        double operator[](int idx) const { return m_array[idx]; }
        Vector & normalize();
        double mag() const;
        double mag2() const;
        double dist_to(const Vector & other) const;
        Vector proj(const Vector & target) const;
        Vector reflect(const Vector & target) const;
        Vector getPerpendicular() const;

        Vector mult(const Vector & v2) const;
        Vector div(const Vector & v2) const;
        Vector operator-() const;
        double operator%(const Vector & v2) const;
        Vector operator*(const Vector & v2) const;
        Vector operator+(const Vector & v2) const;
        Vector operator-(const Vector & v2) const;
        Vector operator*(double scale) const;
        Vector operator/(double scale) const;
        Vector & operator+=(const Vector & v2);
        Vector & operator-=(const Vector & v2);

    protected:
        double  m_array[3];
};

std::ostream & operator<<(std::ostream & out, const Vector & v);
static inline Vector operator*(double d, const Vector & v) { return v * d; }
static inline Vector operator/(double d, const Vector & v) { return v / d; }

#endif