source: trunk/VUT/GtpVisibilityPreprocessor/src/Intersectable.h @ 354

#ifndef __INTERSECTABLE_H
#define __INTERSECTABLE_H

#include "AxisAlignedBox3.h"
#include "Pvs.h"


class Intersectable {
public:
        // last mail id -> warning not thread safe!
        // both mailId and mailbox should be unique for each thread!!!
        static int sMailId;
        int mMailbox;
        
        // unique object Id
        int mId;

        // object based pvs
        KdPvs mKdPvs;
  
  enum { MESH_INSTANCE, TRANSFORMED_MESH_INSTANCE, SPHERE, VIEW_CELL };
  
  Intersectable():mMailbox(0) {}

        void SetId(const int id) { mId = id; }
        int GetId() { return mId; }
        
        void Mail() { mMailbox = sMailId; }
  static void NewMail() { sMailId++; }
  bool Mailed() const { return mMailbox == sMailId; }
  int IncMail() { return ++mMailbox - sMailId; }

  virtual AxisAlignedBox3 GetBox() = 0;
  
  virtual int CastRay(Ray &ray) = 0;
  
  virtual bool IsConvex() = 0;
  virtual bool IsWatertight() = 0;
  virtual float IntersectionComplexity() = 0;
  
  virtual int Type() const = 0;

  virtual int GetRandomSurfacePoint(Vector3 &point, Vector3 &normal) = 0;

        virtual int
        GetRandomVisibleSurfacePoint(Vector3 &point,
                                                                                                                         Vector3 &normal,
                                                                                                                         const Vector3 &viewpoint,
                                                                                                                         const int maxTries
                                                                                                                         ) = 0;

        virtual ostream &Describe(ostream &s) = 0;
        
};


#endif