Direction.h

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0.If a copy of the MPL was not distributed with this
// file, You can obtain one at https ://mozilla.org/MPL/2.0/.
 
#ifndef DIRECTION_H
#define DIRECTION_H
 
#include "Angle.h"
 
namespace Passer {
namespace LinearAlgebra {
 
struct Vector3;
 
template <typename T> class DirectionOf {
public:
  AngleOf<T> horizontal;
  AngleOf<T> vertical;
 
  DirectionOf<T>();
  DirectionOf<T>(AngleOf<T> horizontal, AngleOf<T> vertical);
 
  Vector3 ToVector3() const;
  static DirectionOf<T> FromVector3(Vector3 vector);
 
  static DirectionOf<T> Degrees(float horizontal, float vertical);
  static DirectionOf<T> Radians(float horizontal, float vertical);
 
  const static DirectionOf forward;
  const static DirectionOf back;
  const static DirectionOf up;
  const static DirectionOf down;
  const static DirectionOf left;
  const static DirectionOf right;
 
  bool operator==(const DirectionOf<T> direction) const;
 
  DirectionOf<T> operator-() const;
 
protected:
  void Normalize();
};
 
using DirectionSingle = DirectionOf<float>;
using Direction16 = DirectionOf<signed short>;
 
} // namespace LinearAlgebra
} // namespace Passer
using namespace Passer::LinearAlgebra;
 
#endif