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/*  Project Starshatter 4.5
    Destroyer Studios LLC
    Copyright © 1997-2004. All Rights Reserved.

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


    OVERVIEW
    ========
    Simulation Object and Observer classes
*/

#ifndef SimObject_h
#define SimObject_h

#include "Types.h"
#include "Physical.h"
#include "List.h"

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

class Sim;
class SimRegion;
class SimObject;
class SimObserver;
class Scene;

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

class SimObject : public Physical
{
   friend class SimRegion;

public:
   static const char* TYPENAME() { return "SimObject"; }

   enum TYPES { 
      SIM_SHIP=100,
      SIM_SHOT,
      SIM_DRONE,
      SIM_EXPLOSION,
      SIM_DEBRIS,
      SIM_ASTEROID
   };

   SimObject()                        :                region(0), objid(0), active(0), notifying(0) { }
   SimObject(const char* n, int t=0)  : Physical(n,t), region(0), objid(0), active(0), notifying(0) { }
   virtual ~SimObject();

   virtual SimRegion*   GetRegion()                const { return region; }
   virtual void         SetRegion(SimRegion* rgn)        { region = rgn;  }

   virtual void         Notify();
   virtual void         Register(SimObserver* obs);
   virtual void         Unregister(SimObserver* obs);

   virtual void         Activate(Scene& scene);
   virtual void         Deactivate(Scene& scene);

   virtual DWORD        GetObjID()                 const { return objid;   }
   virtual void         SetObjID(DWORD id)               { objid = id;     }

   virtual bool         IsHostileTo(const SimObject* o)
                                                   const { return false;   }

protected:
   SimRegion*           region;
   List<SimObserver>    observers;
   DWORD                objid;
   bool                 active;
   bool                 notifying;
};

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

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

   virtual ~SimObserver();

   int operator == (const SimObserver& o) const { return this == &o; }

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

   virtual void         Observe(SimObject* obj);
   virtual void         Ignore(SimObject* obj);


protected:
   List<SimObject>      observe_list;
};

#endif SimObject_h