3 Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
4 Copyright (C) 2010-2015 paramat, Matt Gregory
5 Copyright (C) 2016 Duane Robertson <duane@duanerobertson.com>
7 Based on Valleys Mapgen by Gael de Sailly
8 (https://forum.minetest.net/viewtopic.php?f=9&t=11430)
9 and mapgen_v7 by kwolekr and paramat.
11 Licensing changed by permission of Gael de Sailly.
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU Lesser General Public License as published by
15 the Free Software Foundation; either version 2.1 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU Lesser General Public License for more details.
23 You should have received a copy of the GNU Lesser General Public License along
24 with this program; if not, write to the Free Software Foundation, Inc.,
25 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #ifndef MAPGEN_VALLEYS_HEADER
29 #define MAPGEN_VALLEYS_HEADER
33 ////////////// Mapgen Valleys flags
34 #define MGVALLEYS_ALT_CHILL 0x01
35 #define MGVALLEYS_HUMID_RIVERS 0x02
37 // Feed only one variable into these.
38 #define MYSQUARE(x) (x) * (x)
39 #define MYCUBE(x) (x) * (x) * (x)
42 class BiomeGenOriginal;
46 //extern Profiler *mapgen_profiler;
49 struct MapgenValleysParams : public MapgenParams {
52 s16 massive_cave_depth;
61 NoiseParams np_filler_depth;
62 NoiseParams np_inter_valley_fill;
63 NoiseParams np_inter_valley_slope;
64 NoiseParams np_rivers;
65 NoiseParams np_massive_caves;
66 NoiseParams np_terrain_height;
67 NoiseParams np_valley_depth;
68 NoiseParams np_valley_profile;
70 MapgenValleysParams();
71 ~MapgenValleysParams() {}
73 void readParams(const Settings *settings);
74 void writeParams(Settings *settings) const;
85 float inter_valley_fill;
88 class MapgenValleys : public MapgenBasic {
91 MapgenValleys(int mapgenid, MapgenValleysParams *params, EmergeManager *emerge);
94 virtual MapgenType getType() const { return MAPGEN_VALLEYS; }
96 virtual void makeChunk(BlockMakeData *data);
97 int getSpawnLevelAtPoint(v2s16 p);
102 BiomeGenOriginal *m_bgen;
105 bool use_altitude_chill;
106 float humidity_adjust;
107 s16 cave_water_max_height;
110 float altitude_chill;
111 s16 lava_features_lim;
112 s16 massive_cave_depth;
113 float river_depth_bed;
114 float river_size_factor;
116 s16 water_features_lim;
117 Noise *noise_inter_valley_fill;
118 Noise *noise_inter_valley_slope;
122 Noise *noise_massive_caves;
123 Noise *noise_terrain_height;
124 Noise *noise_valley_depth;
125 Noise *noise_valley_profile;
127 float terrainLevelAtPoint(s16 x, s16 z);
129 void calculateNoise();
131 virtual int generateTerrain();
132 float terrainLevelFromNoise(TerrainNoise *tn);
133 float adjustedTerrainLevelFromNoise(TerrainNoise *tn);
135 virtual void generateCaves(s16 max_stone_y, s16 large_cave_depth);