/*
 * PVVMUD a 3D MUD
 * Copyright (C) 1998-1999  Programvareverkstedet (pvv@pvv.org)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifndef _WORLDOBJECT_H
#define _WORLDOBJECT_H

#include "worldhierarchy.H"
#include "position.H"
#include "direction.H"
#include "bbox.H"
#include "bsdtree.H"
#include "matrix.H"
#include "doublearray.H"
#include "beam.H"
#include "geometry.H"
#include "cellpvs.H"


class CWorldWorld;

class CWorldObject : public CWorldHierarchy {

  friend class CWAUpdatePosition;
  friend class CWAUpdateDirection;
  friend class CWACreateObject;
  friend class CWARotate;

  //////////////////////////////////////////////////////
  // Visual atributes

  DWORD m_geometryId;

  CPosition m_position;
  CDirection m_direction;

  //////////////////////////////////////////////////////
  // Physical atributes

  BYTE m_collidable;

  CBBox * m_bBox;
  CBSDTree * m_BSDTree;

  //////////////////////////////////////////////////////
  // Hierarchical atributes

  CCellPVS * m_cellPVS;


public:

  //////////////////////////////////////////////////////
  // Constructor and destructor 

  CWorldObject(DWORD objectId, CWorldHierarchy * parent, DWORD geometryId,
               const CPosition & position, const CDirection & direction);
  virtual ~CWorldObject();

  //////////////////////////////////////////////////////
  // Visual functions  

  virtual CGeometry * getGeometry();
  DWORD getGeometryId();

  CPosition & getPosition();
  CDirection & getDirection();

  virtual void updatePosition( const CPosition & position );
  virtual void updateDirection( const CDirection & direction );
  virtual void rotate( const CDirection & angleSpeed );

private:
  void _updatePosition( const CPosition & position );
  void _updateDirection( const CDirection & direction );

public:

  //////////////////////////////////////////////////////
  // Hierarchical functions  

  virtual char * getObjectType();

  virtual CWorldObject * getMasterCell();

  CPVCell* addPVCell(DWORD PVCellId, const CPosition & position);
  CCellPVS * getPVS();

  CWorldObject * createObject(char * objectName, DWORD objectId, DWORD geometryId, const CPosition & position, const CDirection & direction );

  virtual int moveTo( CWorldObject * parent );

  //////////////////////////////////////////////////////
  // Physical functions  

  void setBBox( CBBox * bBox );
  CBBox * getBBox();

  void setCollidable(BYTE coll);
  BYTE getCollidable();

  void setBSDTree( CBSDTree * tree );
  CBSDTree * getBSDTree();

  int checkPosition( const CPosition & position );

  void getGlobalTransform( CMatrix & transform );
  void getTransform( CMatrix & transform );
  void getInvGlobalTransform( CMatrix & transform );
  void getInvTransform( CMatrix & transform );

  void distances(CDoubleArray & distArray, const CBeam & beam, 
                 double min, double max);

  //////////////////////////////////////////////////////
  // Utility functions  

  virtual void dump(int tab);

};

#endif // _WORLDOBJECT_H