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obj_gun.h

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#ifndef __OBJECTGUN_H
#define __OBJECTGUN_H

class GunInterface
{
protected:
  Object*           obj;              
  FacingInterface*  facing;           
  ObjectInfo*       missile_objinfo;  
  float             speed;            
  int timer; 
  int top_timer; 
  int dir;                            
  void ResetCountdown();    
  bool Countdown( int dt ); 
  bool Ready();             
  void Fire(); 
public:
  GunInterface( Object*          _obj,
                FacingInterface* _facing,
                ObjectInfo*      _missile_objinfo,
                float            _speed,
                int              _top_timer,
                int              _dir ):
    obj( _obj ),
    facing( _facing ),
    missile_objinfo( _missile_objinfo ),
    speed( _speed ),
    timer( _top_timer ),
    top_timer( _top_timer ),
    dir( _dir ) {}
  virtual ~GunInterface() {}
  /* bus messages */
  virtual void Event( int evt )           {}
  virtual void HitTile( Tile* )           {}
  virtual void HitObj( Object* )          {}
};

class GunPlayer: public GunInterface
{
private:
  int          key_bits;
  int          ammo;
public:
  GunPlayer( Object*     _obj,
             FacingInterface* _facing,
             ObjectInfo* _missile_objinfo,
             float       _speed,
             int         _top_timer,
             int         _dir,
             int         _key_bits ):
    GunInterface( _obj, _facing, _missile_objinfo,
                  _speed, _top_timer, _dir ),
    key_bits( _key_bits ),
    ammo ( 0 )
    {}
  virtual ~GunPlayer() {}
  virtual void Event( int evt );
  int AmmoLeft();
  void GrantAmmo( int new_ammo );
  void SetAmmo( int new_ammo );
};

// Periodic gun.
// Set turns to adjust firing from forward:
// -2 - port      (left)
//  0 - bow       (forward)
// +2 - starboard (right)
// +4 - aft       (behind)
class GunPeriodic: public GunInterface
{
public:
  GunPeriodic( Object*           _obj,
               FacingInterface*  _facing,
               ObjectInfo*       _missile_objinfo,
               float             _speed,
               int               _dir,
               int               _top_timer ):
    GunInterface( _obj, _facing, _missile_objinfo,
                  _speed, _dir, _top_timer )
  {}
  virtual ~GunPeriodic() {}
  virtual void Event( int evt );
};

// class GunTimeTriggeredBehaviorMotionless: public GunInterface
// {
// public:
//   BehaviorMotionless( Object* _obj ):
//     BehaviorInterface( _obj ) {}

//   void Action();
// };

// class GunDeathTriggered: public GunInterface
// {
// };

#endif /* __OBJECTGUN_H */

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