camera.h

#ifndef CAMERA_H
#define CAMERA_H

#include <cmath>
#include <map>

class Camera
{
 public:
  enum KEYBOARD {AZERTY, QWERTY};   /* type of keyboard */

  Camera ();
  ~Camera() {}

  void  init (KEYBOARD, float, float, float, float, float, float, float, int, int);

  int   getMouseX () { return mouse_x; }
  int   getMouseY () { return mouse_y; }
  float getSightX () { return X + sinf (theta) * sinf (psi); }
  float getSightY () { return Y + cosf (psi); }
  float getSightZ () { return Z + cosf (theta) * sinf (psi); }
  float getX ()      { return X; }
  float getY ()      { return Y; }
  float getZ ()      { return Z; }

  void setKeyboard (int i, bool state) { keys[i] = state; }
  void setMouse (int x, int y)         { mouse_x = x; mouse_y = y; }
  void setX (float p_X)                { X = p_X; }
  void setY (float p_Y)                { Y = p_Y; }
  void setZ (float p_Z)                { Z = p_Z; }

  void rotation (int, int);
  void translation ();

 private:
  enum    DIR {FORWARD, BACKWARD, LEFT, RIGHT};   /* translation direction */
  typedef std::map<DIR, int> k_map;

  k_map    key_map;                               /* associations keys - directions */
  KEYBOARD keyboard;                              /* keyboard type */
  bool     keys[255];                             /* keys being pushed (true if pushed) */
  float    X;                                     /* sphere center x axis */
  float    Y;                                     /* sphere center y axis */
  float    Z;                                     /* sphere center z axis */
  int      mouse_x;                               /* mouse x position */
  int      mouse_y;                               /* mouse y position */
  float    psi;                                   /* psi angle in spherical coordinates */
  float    theta;                                 /* theta angle in spherical coordinates */
  float    rotation_speed;                        /* equivalent to mouse sensibility */
  float    translation_speed;                     /* equivalent to keyboard sensibility */
  int      time;                                  /* to keep track of the time between two function calls */
};

#endif