3 Copyright (C) 2014-2020 paramat
4 Copyright (C) 2013-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 ///////////// Mapgen V7 flags
26 #define MGV7_MOUNTAINS 0x01
27 #define MGV7_RIDGES 0x02
28 #define MGV7_FLOATLANDS 0x04
29 #define MGV7_CAVERNS 0x08
30 #define MGV7_BIOMEREPEAT 0x10 // Now unused
34 extern FlagDesc flagdesc_mapgen_v7[];
37 struct MapgenV7Params : public MapgenParams {
38 s16 mount_zero_level = 0;
39 s16 floatland_ymin = 1024;
40 s16 floatland_ymax = 4096;
41 s16 floatland_taper = 256;
42 float float_taper_exp = 2.0f;
43 float floatland_density = -0.6f;
44 s16 floatland_ywater = -31000;
46 float cave_width = 0.09f;
47 s16 large_cave_depth = -33;
48 u16 small_cave_num_min = 0;
49 u16 small_cave_num_max = 0;
50 u16 large_cave_num_min = 0;
51 u16 large_cave_num_max = 2;
52 float large_cave_flooded = 0.5f;
53 s16 cavern_limit = -256;
54 s16 cavern_taper = 256;
55 float cavern_threshold = 0.7f;
56 s16 dungeon_ymin = -31000;
57 s16 dungeon_ymax = 31000;
59 NoiseParams np_terrain_base;
60 NoiseParams np_terrain_alt;
61 NoiseParams np_terrain_persist;
62 NoiseParams np_height_select;
63 NoiseParams np_filler_depth;
64 NoiseParams np_mount_height;
65 NoiseParams np_ridge_uwater;
66 NoiseParams np_mountain;
68 NoiseParams np_floatland;
69 NoiseParams np_cavern;
72 NoiseParams np_dungeons;
75 ~MapgenV7Params() = default;
77 void readParams(const Settings *settings);
78 void writeParams(Settings *settings) const;
79 void setDefaultSettings(Settings *settings);
83 class MapgenV7 : public MapgenBasic {
85 MapgenV7(MapgenV7Params *params, EmergeParams *emerge);
88 virtual MapgenType getType() const { return MAPGEN_V7; }
90 virtual void makeChunk(BlockMakeData *data);
91 int getSpawnLevelAtPoint(v2s16 p);
93 float baseTerrainLevelAtPoint(s16 x, s16 z);
94 float baseTerrainLevelFromMap(int index);
95 bool getMountainTerrainAtPoint(s16 x, s16 y, s16 z);
96 bool getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y);
97 bool getRiverChannelFromMap(int idx_xyz, int idx_xz, s16 y);
98 bool getFloatlandTerrainFromMap(int idx_xyz, float float_offset);
100 int generateTerrain();
103 s16 mount_zero_level;
107 float float_taper_exp;
108 float floatland_density;
109 s16 floatland_ywater;
111 float *float_offset_cache = nullptr;
113 Noise *noise_terrain_base;
114 Noise *noise_terrain_alt;
115 Noise *noise_terrain_persist;
116 Noise *noise_height_select;
117 Noise *noise_mount_height;
118 Noise *noise_ridge_uwater;
119 Noise *noise_mountain;
121 Noise *noise_floatland;