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Diffstat (limited to 'src/mapgen/mapgen_fractal.h')
-rw-r--r-- | src/mapgen/mapgen_fractal.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/mapgen/mapgen_fractal.h b/src/mapgen/mapgen_fractal.h new file mode 100644 index 000000000..23af925bc --- /dev/null +++ b/src/mapgen/mapgen_fractal.h @@ -0,0 +1,98 @@ +/* +Minetest +Copyright (C) 2015-2019 paramat +Copyright (C) 2015-2016 kwolekr, Ryan Kwolek + +Fractal formulas from http://www.bugman123.com/Hypercomplex/index.html +by Paul Nylander, and from http://www.fractalforums.com, thank you. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#pragma once + +#include "mapgen.h" + +///////////// Mapgen Fractal flags +#define MGFRACTAL_TERRAIN 0x01 + +class BiomeManager; + +extern FlagDesc flagdesc_mapgen_fractal[]; + + +struct MapgenFractalParams : public MapgenParams +{ + float cave_width = 0.09f; + s16 large_cave_depth = -33; + u16 small_cave_num_min = 0; + u16 small_cave_num_max = 0; + u16 large_cave_num_min = 0; + u16 large_cave_num_max = 2; + float large_cave_flooded = 0.5f; + s16 dungeon_ymin = -31000; + s16 dungeon_ymax = 31000; + u16 fractal = 1; + u16 iterations = 11; + v3f scale = v3f(4096.0, 1024.0, 4096.0); + v3f offset = v3f(1.52, 0.0, 0.0); + float slice_w = 0.0f; + float julia_x = 0.267f; + float julia_y = 0.2f; + float julia_z = 0.133f; + float julia_w = 0.067f; + + NoiseParams np_seabed; + NoiseParams np_filler_depth; + NoiseParams np_cave1; + NoiseParams np_cave2; + NoiseParams np_dungeons; + + MapgenFractalParams(); + ~MapgenFractalParams() = default; + + void readParams(const Settings *settings); + void writeParams(Settings *settings) const; + void setDefaultSettings(Settings *settings); +}; + + +class MapgenFractal : public MapgenBasic +{ +public: + MapgenFractal(MapgenFractalParams *params, EmergeParams *emerge); + ~MapgenFractal(); + + virtual MapgenType getType() const { return MAPGEN_FRACTAL; } + + virtual void makeChunk(BlockMakeData *data); + int getSpawnLevelAtPoint(v2s16 p); + bool getFractalAtPoint(s16 x, s16 y, s16 z); + s16 generateTerrain(); + +private: + u16 formula; + bool julia; + u16 fractal; + u16 iterations; + v3f scale; + v3f offset; + float slice_w; + float julia_x; + float julia_y; + float julia_z; + float julia_w; + Noise *noise_seabed = nullptr; +}; |