3 Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
4 Copyright (C) 2010-2015 paramat, Matt Gregory
6 Fractal formulas from http://www.bugman123.com/Hypercomplex/index.html
7 by Paul Nylander, and from http://www.fractalforums.com, thank you.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #ifndef MAPGEN_FRACTAL_HEADER
25 #define MAPGEN_FRACTAL_HEADER
29 #define MGFRACTAL_LARGE_CAVE_DEPTH -33
33 extern FlagDesc flagdesc_mapgen_fractal[];
36 struct MapgenFractalParams : public MapgenSpecificParams {
50 NoiseParams np_seabed;
51 NoiseParams np_filler_depth;
55 MapgenFractalParams();
56 ~MapgenFractalParams() {}
58 void readParams(const Settings *settings);
59 void writeParams(Settings *settings) const;
62 class MapgenFractal : public Mapgen {
64 EmergeManager *m_emerge;
91 Noise *noise_filler_depth;
96 Noise *noise_humidity;
97 Noise *noise_heat_blend;
98 Noise *noise_humidity_blend;
101 content_t c_water_source;
102 content_t c_lava_source;
103 content_t c_desert_stone;
105 content_t c_sandstone;
108 content_t c_stair_cobble;
109 content_t c_mossycobble;
110 content_t c_sandstonebrick;
111 content_t c_stair_sandstonebrick;
113 MapgenFractal(int mapgenid, MapgenParams *params, EmergeManager *emerge);
116 virtual void makeChunk(BlockMakeData *data);
117 int getSpawnLevelAtPoint(v2s16 p);
118 void calculateNoise();
119 bool getFractalAtPoint(s16 x, s16 y, s16 z);
120 s16 generateTerrain();
121 MgStoneType generateBiomes(float *heat_map, float *humidity_map);
123 void generateCaves(s16 max_stone_y);
126 struct MapgenFactoryFractal : public MapgenFactory {
127 Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge)
129 return new MapgenFractal(mgid, params, emerge);
132 MapgenSpecificParams *createMapgenParams()
134 return new MapgenFractalParams();