camera.h

#ifndef CAMERA_H
#define CAMERA_H

#include "ConMath.h"
#include "timer.h"

class IO_Window;

class Camera
{
public:
  Camera (void) { }

  Camera (Vector pos, Vector fwd, Vector up);

  void WritePosition (void);

  void Update (IO_Window *win);

  void Get (Vector *pos, Vector *fwd, Vector *up, Vector *right) const;

  //added by Dave
  void Set (Vector pos, Vector fwd, Vector up);

private:
  /* realigns the camera axes */
  void realign (void)
    {
      f.Normalize ();
      r = u.Cross (f);
      r.Normalize ();
      u = f.Cross (r);
      u.Normalize ();
    }

  /* position vector */
  Vector p;

  /* forward vector */
  Vector f;

  /* up vector */
  Vector u;

  /* right vector */
  Vector r;

  /* velocity */
  double vf, vu, vr;

  /* timer */
  Timer timer;
};

#endif

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