3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #ifndef MAPGENV6_HEADER
21 #define MAPGENV6_HEADER
25 #define AVERAGE_MUD_AMOUNT 4
26 #define VMANIP_FLAG_CAVE VOXELFLAG_CHECKED1
34 extern NoiseParams nparams_v6_def_terrain_base;
35 extern NoiseParams nparams_v6_def_terrain_higher;
36 extern NoiseParams nparams_v6_def_steepness;
37 extern NoiseParams nparams_v6_def_height_select;
38 extern NoiseParams nparams_v6_def_mud;
39 extern NoiseParams nparams_v6_def_beach;
40 extern NoiseParams nparams_v6_def_biome;
41 extern NoiseParams nparams_v6_def_cave;
42 extern NoiseParams nparams_v6_def_humidity;
43 extern NoiseParams nparams_v6_def_trees;
44 extern NoiseParams nparams_v6_def_apple_trees;
46 struct MapgenV6Params : public MapgenParams {
49 NoiseParams *np_terrain_base;
50 NoiseParams *np_terrain_higher;
51 NoiseParams *np_steepness;
52 NoiseParams *np_height_select;
54 NoiseParams *np_beach;
55 NoiseParams *np_biome;
57 NoiseParams *np_humidity;
58 NoiseParams *np_trees;
59 NoiseParams *np_apple_trees;
64 np_terrain_base = &nparams_v6_def_terrain_base;
65 np_terrain_higher = &nparams_v6_def_terrain_higher;
66 np_steepness = &nparams_v6_def_steepness;
67 np_height_select = &nparams_v6_def_height_select;
68 np_mud = &nparams_v6_def_mud;
69 np_beach = &nparams_v6_def_beach;
70 np_biome = &nparams_v6_def_biome;
71 np_cave = &nparams_v6_def_cave;
72 np_humidity = &nparams_v6_def_humidity;
73 np_trees = &nparams_v6_def_trees;
74 np_apple_trees = &nparams_v6_def_apple_trees;
78 bool readParams(Settings *settings);
79 void writeParams(Settings *settings);
82 class MapgenV6 : public Mapgen {
93 v3s16 central_area_size;
96 Noise *noise_terrain_base;
97 Noise *noise_terrain_higher;
98 Noise *noise_steepness;
99 Noise *noise_height_select;
103 NoiseParams *np_cave;
104 NoiseParams *np_humidity;
105 NoiseParams *np_trees;
106 NoiseParams *np_apple_trees;
112 content_t c_dirt_with_grass;
114 content_t c_water_source;
115 content_t c_lava_source;
118 content_t c_desert_sand;
119 content_t c_desert_stone;
121 MapgenV6(int mapgenid, MapgenV6Params *params);
124 void makeChunk(BlockMakeData *data);
125 int getGroundLevelAtPoint(v2s16 p);
127 float baseTerrainLevel(float terrain_base, float terrain_higher,
128 float steepness, float height_select);
129 float baseTerrainLevelFromNoise(v2s16 p);
130 float baseTerrainLevelFromMap(v2s16 p);
131 float baseTerrainLevelFromMap(int index);
133 s16 find_ground_level(v2s16 p2d);
134 s16 find_stone_level(v2s16 p2d);
135 bool block_is_underground(u64 seed, v3s16 blockpos);
136 s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
138 float getHumidity(v2s16 p);
139 float getTreeAmount(v2s16 p);
140 bool getHaveAppleTree(v2s16 p);
141 float getMudAmount(v2s16 p);
142 float getMudAmount(int index);
143 bool getHaveBeach(v2s16 p);
144 bool getHaveBeach(int index);
145 BiomeType getBiome(v2s16 p);
146 BiomeType getBiome(int index, v2s16 p);
148 u32 get_blockseed(u64 seed, v3s16 p);
151 void calculateNoise();
152 int generateGround();
154 void flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos);
155 void addDirtGravelBlobs();
158 void generateCaves(int max_stone_y);
161 struct MapgenFactoryV6 : public MapgenFactory {
162 Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge) {
163 return new MapgenV6(mgid, (MapgenV6Params *)params);
166 MapgenParams *createMapgenParams() {
167 return new MapgenV6Params();