src/game/CellImpl.h

   1 /*
   2  * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef MANGOS_CELLIMPL_H
  20 #define MANGOS_CELLIMPL_H
  21
  22 #include "Cell.h"
  23 #include "Map.h"
  24 #include <cmath>
  25
  26 inline Cell::Cell(CellPair const& p)
  27 {
  28     data.Part.grid_x = p.x_coord / MAX_NUMBER_OF_CELLS;
  29     data.Part.grid_y = p.y_coord / MAX_NUMBER_OF_CELLS;
  30     data.Part.cell_x = p.x_coord % MAX_NUMBER_OF_CELLS;
  31     data.Part.cell_y = p.y_coord % MAX_NUMBER_OF_CELLS;
  32     data.Part.nocreate = 0;
  33     data.Part.reserved = 0;
  34 }
  35
  36 template<class LOCK_TYPE,class T, class CONTAINER>
  37 inline void
  38 Cell::Visit(const CellLock<LOCK_TYPE> &l, TypeContainerVisitor<T, CONTAINER> &visitor, Map &m) const
  39 {
  40     const CellPair &standing_cell = l.i_cellPair;
  41     if (standing_cell.x_coord >= TOTAL_NUMBER_OF_CELLS_PER_MAP || standing_cell.y_coord >= TOTAL_NUMBER_OF_CELLS_PER_MAP)
  42         return;
  43
  44     uint16 district = (District)this->data.Part.reserved;
  45     if(district == CENTER_DISTRICT)
  46     {
  47         m.Visit(l, visitor);
  48         return;
  49     }
  50
  51     // set up the cell range based on the district
  52     // the overloaded operators handle range checking
  53     CellPair begin_cell = standing_cell;
  54     CellPair end_cell = standing_cell;
  55
  56     switch( district )
  57     {
  58         case ALL_DISTRICT:
  59         {
  60             begin_cell << 1; begin_cell -= 1;               // upper left
  61             end_cell >> 1; end_cell += 1;                   // lower right
  62             break;
  63         }
  64         case UPPER_LEFT_DISTRICT:
  65         {
  66             begin_cell << 1; begin_cell -= 1;               // upper left
  67             break;
  68         }
  69         case UPPER_RIGHT_DISTRICT:
  70         {
  71             begin_cell -= 1;                                // up
  72             end_cell >> 1;                                  // right
  73             break;
  74         }
  75         case LOWER_LEFT_DISTRICT:
  76         {
  77             begin_cell << 1;                                // left
  78             end_cell += 1;                                  // down
  79             break;
  80         }
  81         case LOWER_RIGHT_DISTRICT:
  82         {
  83             end_cell >> 1; end_cell += 1;                   // lower right
  84             break;
  85         }
  86         case LEFT_DISTRICT:
  87         {
  88             begin_cell -= 1;                                // up
  89             end_cell >> 1; end_cell += 1;                   // lower right
  90             break;
  91         }
  92         case RIGHT_DISTRICT:
  93         {
  94             begin_cell << 1; begin_cell -= 1;               // upper left
  95             end_cell += 1;                                  // down
  96             break;
  97         }
  98         case UPPER_DISTRICT:
  99         {
 100             begin_cell << 1; begin_cell -= 1;               // upper left
 101             end_cell >> 1;                                  // right
 102             break;
 103         }
 104         case LOWER_DISTRICT:
 105         {
 106             begin_cell << 1;                                // left
 107             end_cell >> 1; end_cell += 1;                   // lower right
 108             break;
 109         }
 110         default:
 111         {
 112             assert( false );
 113             break;
 114         }
 115     }
 116
 117     // loop the cell range
 118     for(uint32 x = begin_cell.x_coord; x <= end_cell.x_coord; x++)
 119     {
 120         for(uint32 y = begin_cell.y_coord; y <= end_cell.y_coord; y++)
 121         {
 122             CellPair cell_pair(x,y);
 123             Cell r_zone(cell_pair);
 124             r_zone.data.Part.nocreate = l->data.Part.nocreate;
 125             CellLock<LOCK_TYPE> lock(r_zone, cell_pair);
 126             m.Visit(lock, visitor);
 127         }
 128     }
 129 }
 130 #endif