src/mapgen/mapgen_flat.h

   1 /*
   2 Minetest
   3 Copyright (C) 2015-2020 paramat
   4 Copyright (C) 2015-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU Lesser General Public License as published by
   8 the Free Software Foundation; either version 2.1 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU Lesser General Public License for more details.
  15
  16 You should have received a copy of the GNU Lesser General Public License along
  17 with this program; if not, write to the Free Software Foundation, Inc.,
  18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 */
  20
  21 #pragma once
  22
  23 #include "mapgen.h"
  24
  25 /////// Mapgen Flat flags
  26 #define MGFLAT_LAKES 0x01
  27 #define MGFLAT_HILLS 0x02
  28 #define MGFLAT_CAVERNS 0x04
  29
  30 class BiomeManager;
  31
  32 extern FlagDesc flagdesc_mapgen_flat[];
  33
  34 struct MapgenFlatParams : public MapgenParams
  35 {
  36         s16 ground_level = 8;
  37         float lake_threshold = -0.45f;
  38         float lake_steepness = 48.0f;
  39         float hill_threshold = 0.45f;
  40         float hill_steepness = 64.0f;
  41
  42         float cave_width = 0.09f;
  43         u16 small_cave_num_min = 0;
  44         u16 small_cave_num_max = 0;
  45         u16 large_cave_num_min = 0;
  46         u16 large_cave_num_max = 2;
  47         s16 large_cave_depth = -33;
  48         float large_cave_flooded = 0.5f;
  49         s16 cavern_limit = -256;
  50         s16 cavern_taper = 256;
  51         float cavern_threshold = 0.7f;
  52         s16 dungeon_ymin = -31000;
  53         s16 dungeon_ymax = 31000;
  54
  55         NoiseParams np_terrain;
  56         NoiseParams np_filler_depth;
  57         NoiseParams np_cavern;
  58         NoiseParams np_cave1;
  59         NoiseParams np_cave2;
  60         NoiseParams np_dungeons;
  61
  62         MapgenFlatParams();
  63         ~MapgenFlatParams() = default;
  64
  65         void readParams(const Settings *settings);
  66         void writeParams(Settings *settings) const;
  67         void setDefaultSettings(Settings *settings);
  68 };
  69
  70 class MapgenFlat : public MapgenBasic
  71 {
  72 public:
  73         MapgenFlat(MapgenFlatParams *params, EmergeParams *emerge);
  74         ~MapgenFlat();
  75
  76         virtual MapgenType getType() const { return MAPGEN_FLAT; }
  77
  78         virtual void makeChunk(BlockMakeData *data);
  79         int getSpawnLevelAtPoint(v2s16 p);
  80         s16 generateTerrain();
  81
  82 private:
  83         s16 ground_level;
  84         float lake_threshold;
  85         float lake_steepness;
  86         float hill_threshold;
  87         float hill_steepness;
  88
  89         Noise *noise_terrain;
  90 };