From e62eac49d590ca53fa250c0367dd9850729156b3 Mon Sep 17 00:00:00 2001 From: paramat Date: Tue, 14 Apr 2015 04:38:01 +0100 Subject: Mapgen: Add 4D fractal mapgen --- src/mapgen_fractal.h | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 src/mapgen_fractal.h (limited to 'src/mapgen_fractal.h') diff --git a/src/mapgen_fractal.h b/src/mapgen_fractal.h new file mode 100644 index 000000000..71729cbed --- /dev/null +++ b/src/mapgen_fractal.h @@ -0,0 +1,133 @@ +/* +Minetest +Copyright (C) 2010-2013 kwolekr, Ryan Kwolek +Additional development and fractal code by paramat + +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. +*/ + +#ifndef MAPGEN_FRACTAL_HEADER +#define MAPGEN_FRACTAL_HEADER + +#include "mapgen.h" + +/////////////////// Mapgen Fractal flags +#define MGFRACTAL_JULIA 0x01 + +class BiomeManager; + +extern FlagDesc flagdesc_mapgen_fractal[]; + + +struct MapgenFractalParams : public MapgenSpecificParams { + u32 spflags; + + u16 iterations; + float scale_x; + float scale_y; + float scale_z; + float offset_x; + float offset_y; + float offset_z; + float slice_w; + float julia_x; + float julia_y; + float julia_z; + float julia_w; + + NoiseParams np_cave1; + NoiseParams np_cave2; + + MapgenFractalParams(); + ~MapgenFractalParams() {} + + void readParams(const Settings *settings); + void writeParams(Settings *settings) const; +}; + +class MapgenFractal : public Mapgen { +public: + EmergeManager *m_emerge; + BiomeManager *bmgr; + + int ystride; + int zstride; + u32 spflags; + + v3s16 node_min; + v3s16 node_max; + v3s16 full_node_min; + v3s16 full_node_max; + + u16 iterations; + float scale_x; + float scale_y; + float scale_z; + float offset_x; + float offset_y; + float offset_z; + float slice_w; + float julia_x; + float julia_y; + float julia_z; + float julia_w; + + Noise *noise_cave1; + Noise *noise_cave2; + + Noise *noise_heat; + Noise *noise_humidity; + Noise *noise_heat_blend; + Noise *noise_humidity_blend; + + content_t c_stone; + content_t c_water_source; + content_t c_lava_source; + content_t c_desert_stone; + content_t c_ice; + content_t c_sandstone; + + content_t c_cobble; + content_t c_stair_cobble; + content_t c_mossycobble; + content_t c_sandstonebrick; + content_t c_stair_sandstonebrick; + + MapgenFractal(int mapgenid, MapgenParams *params, EmergeManager *emerge); + ~MapgenFractal(); + + virtual void makeChunk(BlockMakeData *data); + int getGroundLevelAtPoint(v2s16 p); + void calculateNoise(); + bool getTerrainAtPoint(s16 x, s16 y, s16 z); + s16 generateTerrain(); + MgStoneType generateBiomes(float *heat_map, float *humidity_map); + void dustTopNodes(); + void generateCaves(s16 max_stone_y); +}; + +struct MapgenFactoryFractal : public MapgenFactory { + Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge) + { + return new MapgenFractal(mgid, params, emerge); + }; + + MapgenSpecificParams *createMapgenParams() + { + return new MapgenFractalParams(); + }; +}; + +#endif -- cgit v1.2.3