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/*  Project STARSHATTER
    John DiCamillo
    Copyright © 1997-2002. All Rights Reserved.

    SUBSYSTEM:    Stars.exe
    FILE:         FlightDeck.h
    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Everything needed to launch and recover space craft

    See Also: Hangar
*/

#ifndef FlightDeck_h
#define FlightDeck_h

#include "Types.h"
#include "Geometry.h"
#include "System.h"
#include "SimObject.h"
#include "Text.h"

// +----------------------------------------------------------------------+

class Hoop;
class Light;
class Ship;
class ShipDesign;
class FlightDeck;
class FlightDeckSlot;
class InboundSlot;

// +======================================================================+

class InboundSlot : public SimObserver
{
public:
   static const char* TYPENAME() { return "InboundSlot"; }

   InboundSlot() : ship(0), deck(0), squadron(0), slot(0), cleared(0), final(0), approach(0) { }
   InboundSlot(Ship* s, FlightDeck* d, int squad, int index);

   int operator <  (const InboundSlot& that) const;
   int operator <= (const InboundSlot& that) const;
   int operator == (const InboundSlot& that) const;

   // SimObserver:
   virtual bool         Update(SimObject* obj);
   virtual const char*  GetObserverName() const;

   Ship*             GetShip()      { return ship;     }
   FlightDeck*       GetDeck()      { return deck;     }
   int               Squadron()     { return squadron; }
   int               Index()        { return slot;     }
   int               Cleared()      { return cleared;  }
   int               Final()        { return final;    }
   int               Approach()     { return approach; }
   Point             Offset()       { return offset;   }
   double            Distance();

   void              SetApproach(int a) { approach = a; }
   void              SetOffset(const Point& p) { offset = p; }
   void              SetFinal(int f) { final = f; }
   void              Clear(bool clear=true);

private:
   Ship*             ship;
   FlightDeck*       deck;
   int               squadron;
   int               slot;
   int               cleared;
   int               final;
   int               approach;
   Point             offset;
};

// +----------------------------------------------------------------------+

class FlightDeck : public System, public SimObserver
{
public:
   static const char* TYPENAME() { return "FlightDeck"; }

   FlightDeck();
   FlightDeck(const FlightDeck& rhs);
   virtual ~FlightDeck();

   enum FLIGHT_DECK_MODE   { FLIGHT_DECK_LAUNCH, FLIGHT_DECK_RECOVERY      };
   enum FLIGHT_SLOT_STATE  { CLEAR, READY, QUEUED, LOCKED, LAUNCH, DOCKING };
   enum CONSTANTS          { NUM_APPROACH_PTS = 8 };

   static void    Initialize();
   static void    Close();

   virtual void   ExecFrame(double seconds);
   void           SetCarrier(Ship* s)     { ship = carrier = s; }
   void           SetIndex(int n)         { index = n;   }

   virtual int    SpaceLeft(int type) const;

   virtual bool   Spot(Ship* s, int& index);
   virtual bool   Clear(int index);
   virtual bool   Launch(int index);
   virtual bool   LaunchShip(Ship* s);
   virtual bool   Recover(Ship* s);
   virtual bool   Dock(Ship* s);
   virtual int    Inbound(InboundSlot*& s);
   virtual void   GrantClearance();

   virtual void   AddSlot(const Point& loc, DWORD filter=0xf);

   virtual bool   IsLaunchDeck()       const { return subtype == FLIGHT_DECK_LAUNCH;   }
   virtual void   SetLaunchDeck()            {        subtype =  FLIGHT_DECK_LAUNCH;   }
   virtual bool   IsRecoveryDeck()     const { return subtype == FLIGHT_DECK_RECOVERY; }
   virtual void   SetRecoveryDeck()          {        subtype =  FLIGHT_DECK_RECOVERY; }

   Point          BoundingBox()        const { return box;                             }
   Point          ApproachPoint(int i) const { return approach_point[i];               }
   Point          RunwayPoint(int i)   const { return runway_point[i];                 }
   Point          StartPoint()         const { return start_point;                     }
   Point          EndPoint()           const { return end_point;                       }
   Point          CamLoc()             const { return cam_loc;                         }
   double         Azimuth()            const { return azimuth;                         }

   virtual void   SetBoundingBox(Point dimensions) { box = dimensions; }
   virtual void   SetApproachPoint(int i, Point loc);
   virtual void   SetRunwayPoint(int i, Point loc);
   virtual void   SetStartPoint(Point loc);
   virtual void   SetEndPoint(Point loc);
   virtual void   SetCamLoc(Point loc);
   virtual void   SetCycleTime(double time);
   virtual void   SetAzimuth(double az)      { azimuth = az; }
   virtual void   SetLight(double l);

   virtual void   Orient(const Physical* rep);

   // SimObserver:
   virtual bool         Update(SimObject* obj);
   virtual const char*  GetObserverName() const;

   // accessors:
   int            NumSlots()                 const { return num_slots; }
   double         TimeRemaining(int index)   const;
   int            State(int index)           const;
   int            Sequence(int index)        const;
   const Ship*    GetCarrier()               const { return carrier; }
   int            GetIndex()                 const { return index;   }
   Ship*          GetShip(int index)         const;
   int            NumHoops()                 const { return num_hoops; }
   Hoop*          GetHoops()                 const { return hoops;     }
   Light*         GetLight()                       { return light;     }

   List<InboundSlot>& GetRecoveryQueue()           { return recovery_queue; }
   void           PrintQueue();

   bool           OverThreshold(Ship* s)        const;
   bool           ContainsPoint(const Point& p) const;

protected:
   Ship*             carrier;
   int               index;
   int               num_slots;
   FlightDeckSlot*   slots;

   Point             box;
   Point             start_rel;
   Point             end_rel;
   Point             cam_rel;
   Point             approach_rel[NUM_APPROACH_PTS];
   Point             runway_rel[2];

   Point             start_point;
   Point             end_point;
   Point             cam_loc;
   Point             approach_point[NUM_APPROACH_PTS];
   Point             runway_point[2];

   double            azimuth;
   double            cycle_time;

   int               num_approach_pts;
   int               num_catsounds;
   int               num_hoops;
   Hoop*             hoops;
   Light*            light;
   List<InboundSlot> recovery_queue;
};

// +----------------------------------------------------------------------+

#endif FlightDeck_h