src/tile.h

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 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 General Public License as published by
   7 the Free Software Foundation; either version 2 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 General Public License for more details.
  14
  15 You should have received a copy of the GNU 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 #ifndef TILE_HEADER
  21 #define TILE_HEADER
  22
  23 #include "common_irrlicht.h"
  24 #include "utility.h"
  25
  26 // TileID is supposed to be stored in a u16
  27
  28 enum TileID
  29 {
  30         TILE_NONE, // Nothing shown
  31         TILE_STONE,
  32         TILE_WATER,
  33         TILE_GRASS,
  34         TILE_TREE,
  35         TILE_LEAVES,
  36         TILE_GRASS_FOOTSTEPS,
  37         TILE_MESE,
  38         TILE_MUD,
  39         TILE_TREE_TOP,
  40         TILE_MUD_WITH_GRASS,
  41         TILE_CLOUD,
  42
  43         // Count of tile ids
  44         TILES_COUNT
  45 };
  46
  47 enum TileSpecialFeature
  48 {
  49         TILEFEAT_NONE,
  50         TILEFEAT_CRACK,
  51 };
  52
  53 struct TileCrackParam
  54 {
  55         bool operator==(TileCrackParam &other)
  56         {
  57                 return progression == other.progression;
  58         }
  59
  60         u16 progression;
  61 };
  62
  63 struct TileSpec
  64 {
  65         TileSpec()
  66         {
  67                 id = TILE_NONE;
  68                 feature = TILEFEAT_NONE;
  69         }
  70
  71         bool operator==(TileSpec &other)
  72         {
  73                 if(id != other.id)
  74                         return false;
  75                 if(feature != other.feature)
  76                         return false;
  77                 if(feature == TILEFEAT_NONE)
  78                         return true;
  79                 if(feature == TILEFEAT_CRACK)
  80                 {
  81                         return param.crack == other.param.crack;
  82                 }
  83                 // Invalid feature
  84                 assert(0);
  85                 return false;
  86         }
  87
  88         u16 id; // Id in g_tile_materials, TILE_NONE=none
  89         enum TileSpecialFeature feature;
  90         union
  91         {
  92                 TileCrackParam crack;
  93         } param;
  94 };
  95
  96 // A mapping from tiles to names of cached textures
  97 extern const char * g_tile_texture_names[TILES_COUNT];
  98
  99 // A mapping from tiles to materials
 100 // Initialized at run-time.
 101 extern video::SMaterial g_tile_materials[TILES_COUNT];
 102
 103 /*
 104         Functions
 105 */
 106
 107 // Initializes g_tile_materials
 108 void tile_materials_preload(TextureCache &cache);
 109
 110 #endif