u3d_grid_cell.hpp

/* u3d_grid_cell.hpp */
/* $Id: u3d_grid_cell.hpp,v 1.1 2008/05/13 12:19:18 sad Exp $ */

/***********************************************************************
 * UNIVERS subpart
 * (C)opyright GEOVERS LTD, 2004
 * All rights reserved
 ***********************************************************************/

//#include <vector>

#include <mth/u3d_box.hpp>

#ifndef __u3d_grid_cell_hpp
#define __u3d_grid_cell_hpp

//const int U3D_MAX_CELL_TRIANGLES = 20;

struct U3dDivCell
{
  int   s_idBody1;                             
  int   s_idBody2;                             
  int   s_idBound;                             
  unsigned char s_nTriangles;                  
  std::vector<int> s_idTriangles;   
};


struct U3dGridCell
{
  unsigned m_ID;
  
  U3dBox m_Box;
  
  //U3dCellId m_cellId;
  unsigned char m_numBodies;

  unsigned char m_Depth;
  
  U3dGridCell   *m_Parent;
  
  int m_surfaceId;
  
  int m_startPointBodyId;
  
  union content {
    U3dGridCell *c_Childs[8];
    int c_idBody; 
    U3dDivCell  *c_b2;
    
  } m_cellContent;
  
  U3dGridCell(unsigned cellId, unsigned char bodiesNum, unsigned char depth, U3dGridCell* parent, int surfId, int stPBodyId, int bodyId) : 
    m_ID(cellId),
    m_numBodies(bodiesNum), 
    m_Depth(depth), 
    m_Parent(parent), 
    m_surfaceId(surfId), 
    m_startPointBodyId(stPBodyId)
  { m_cellContent.c_idBody = bodyId; }
  
  ~U3dGridCell()
  {
    if (0==m_numBodies) {
      for (unsigned char i=0; i<8; ++i)
    delete m_cellContent.c_Childs[i];
    }
    if (m_numBodies>1) delete m_cellContent.c_b2;
  }
};

typedef std::vector<U3dGridCell*> U3dGridCellsArray;

#endif /* u3d_grid_cell.hpp */