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#ifndef VECTOR_H
#define VECTOR_H
#include <iostream>
#include <math.h>
class Vec2d {
public:
Vec2d();
Vec2d(double x, double y);
void set(double x, double y);
double m_x, m_y, m_z;
};
class Vec3d {
public:
Vec3d();
Vec3d(double x, double y, double z);
static inline Vec3d FromSpherical(double sinTheta, double cosTheta, double phi) {
return Vec3d(sinTheta * std::cos(phi),
sinTheta * std::sin(phi),
cosTheta);
}
void set(double x, double y, double z);
void normalize();
double length() const;
double dot(const Vec3d &vec) const;
Vec3d cross(const Vec3d &vec) const;
// Operators
Vec3d operator+(const Vec3d &vec) const;
Vec3d& operator+=(const Vec3d &vec);
Vec3d operator-(const Vec3d &vec) const;
Vec3d operator-() const;
Vec3d operator*(double) const;
Vec3d operator*(const Vec3d &vec) const;
Vec3d operator/(double) const;
friend std::ostream& operator<<(std::ostream& os, const Vec3d &v);
double m_x, m_y, m_z;
};
#endif
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