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 {
48 NoiseParams np_seabed;
49 NoiseParams np_filler_depth;
53 MapgenFractalParams();
54 ~MapgenFractalParams() {}
56 void readParams(const Settings *settings);
57 void writeParams(Settings *settings) const;
60 class MapgenFractal : public Mapgen {
62 EmergeManager *m_emerge;
87 Noise *noise_filler_depth;
92 Noise *noise_humidity;
93 Noise *noise_heat_blend;
94 Noise *noise_humidity_blend;
97 content_t c_water_source;
98 content_t c_lava_source;
99 content_t c_desert_stone;
101 content_t c_sandstone;
104 content_t c_stair_cobble;
105 content_t c_mossycobble;
106 content_t c_sandstonebrick;
107 content_t c_stair_sandstonebrick;
109 MapgenFractal(int mapgenid, MapgenParams *params, EmergeManager *emerge);
112 virtual void makeChunk(BlockMakeData *data);
113 int getSpawnLevelAtPoint(v2s16 p);
114 void calculateNoise();
115 bool getFractalAtPoint(s16 x, s16 y, s16 z);
116 s16 generateTerrain();
117 MgStoneType generateBiomes(float *heat_map, float *humidity_map);
119 void generateCaves(s16 max_stone_y);
122 struct MapgenFactoryFractal : public MapgenFactory {
123 Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge)
125 return new MapgenFractal(mgid, params, emerge);
128 MapgenSpecificParams *createMapgenParams()
130 return new MapgenFractalParams();