src/dungeongen.h

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 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 #ifndef DUNGEONGEN_HEADER
  21 #define DUNGEONGEN_HEADER
  22
  23 #include "voxel.h"
  24 #include "noise.h"
  25 #include "mapgen.h"
  26
  27 #define VMANIP_FLAG_DUNGEON_INSIDE VOXELFLAG_CHECKED1
  28 #define VMANIP_FLAG_DUNGEON_PRESERVE VOXELFLAG_CHECKED2
  29 #define VMANIP_FLAG_DUNGEON_UNTOUCHABLE (\
  30                 VMANIP_FLAG_DUNGEON_INSIDE|VMANIP_FLAG_DUNGEON_PRESERVE)
  31
  32 class MMVManip;
  33 class INodeDefManager;
  34
  35 v3s16 rand_ortho_dir(PseudoRandom &random, bool diagonal_dirs);
  36 v3s16 turn_xz(v3s16 olddir, int t);
  37 v3s16 random_turn(PseudoRandom &random, v3s16 olddir);
  38 int dir_to_facedir(v3s16 d);
  39
  40
  41 struct DungeonParams {
  42         content_t c_water;
  43         content_t c_cobble;
  44         content_t c_moss;
  45         content_t c_stair;
  46
  47         GenNotifyType notifytype;
  48         bool diagonal_dirs;
  49         float mossratio;
  50         v3s16 holesize;
  51         v3s16 roomsize;
  52
  53         NoiseParams np_rarity;
  54         NoiseParams np_wetness;
  55         NoiseParams np_density;
  56 };
  57
  58 class DungeonGen {
  59 public:
  60         MMVManip *vm;
  61         Mapgen *mg;
  62         u32 blockseed;
  63         PseudoRandom random;
  64         v3s16 csize;
  65
  66         content_t c_torch;
  67         DungeonParams dp;
  68
  69         //RoomWalker
  70         v3s16 m_pos;
  71         v3s16 m_dir;
  72
  73         DungeonGen(Mapgen *mg, DungeonParams *dparams);
  74         void generate(u32 bseed, v3s16 full_node_min, v3s16 full_node_max);
  75
  76         void makeDungeon(v3s16 start_padding);
  77         void makeRoom(v3s16 roomsize, v3s16 roomplace);
  78         void makeCorridor(v3s16 doorplace, v3s16 doordir,
  79                                           v3s16 &result_place, v3s16 &result_dir);
  80         void makeDoor(v3s16 doorplace, v3s16 doordir);
  81         void makeFill(v3s16 place, v3s16 size, u8 avoid_flags, MapNode n, u8 or_flags);
  82         void makeHole(v3s16 place);
  83
  84         bool findPlaceForDoor(v3s16 &result_place, v3s16 &result_dir);
  85         bool findPlaceForRoomDoor(v3s16 roomsize, v3s16 &result_doorplace,
  86                         v3s16 &result_doordir, v3s16 &result_roomplace);
  87
  88         void randomizeDir()
  89         {
  90                 m_dir = rand_ortho_dir(random, dp.diagonal_dirs);
  91         }
  92 };
  93
  94 extern NoiseParams nparams_dungeon_rarity;
  95 extern NoiseParams nparams_dungeon_wetness;
  96 extern NoiseParams nparams_dungeon_density;
  97
  98 #endif