src/mapsector.h

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #pragma once
  21
  22 #include "irrlichttypes.h"
  23 #include "irr_v2d.h"
  24 #include "mapblock.h"
  25 #include <ostream>
  26 #include <map>
  27 #include <vector>
  28
  29 class Map;
  30 class IGameDef;
  31
  32 /*
  33         This is an Y-wise stack of MapBlocks.
  34 */
  35
  36 #define MAPSECTOR_SERVER 0
  37 #define MAPSECTOR_CLIENT 1
  38
  39 class MapSector
  40 {
  41 public:
  42
  43         MapSector(Map *parent, v2s16 pos, IGameDef *gamedef);
  44         virtual ~MapSector();
  45
  46         void deleteBlocks();
  47
  48         v2s16 getPos()
  49         {
  50                 return m_pos;
  51         }
  52
  53         MapBlock * getBlockNoCreateNoEx(s16 y);
  54         MapBlock * createBlankBlockNoInsert(s16 y);
  55         MapBlock * createBlankBlock(s16 y);
  56
  57         void insertBlock(MapBlock *block);
  58
  59         void deleteBlock(MapBlock *block);
  60
  61         void getBlocks(MapBlockVect &dest);
  62
  63         bool empty() const { return m_blocks.empty(); }
  64
  65         int size() const { return m_blocks.size(); }
  66 protected:
  67
  68         // The pile of MapBlocks
  69         std::unordered_map<s16, MapBlock*> m_blocks;
  70
  71         Map *m_parent;
  72         // Position on parent (in MapBlock widths)
  73         v2s16 m_pos;
  74
  75         IGameDef *m_gamedef;
  76
  77         // Last-used block is cached here for quicker access.
  78         // Be sure to set this to nullptr when the cached block is deleted
  79         MapBlock *m_block_cache = nullptr;
  80         s16 m_block_cache_y;
  81
  82         /*
  83                 Private methods
  84         */
  85         MapBlock *getBlockBuffered(s16 y);
  86
  87 };