3 Copyright (C) 2010-2018 celeron55, Perttu Ahola <celeron55@gmail.com>
4 Copyright (C) 2013-2018 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
5 Copyright (C) 2014-2018 paramat
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #define MGV6_AVERAGE_MUD_AMOUNT 4
28 #define MGV6_DESERT_STONE_BASE -32
29 #define MGV6_ICE_BASE 0
30 #define MGV6_FREQ_HOT 0.4
31 #define MGV6_FREQ_SNOW -0.4
32 #define MGV6_FREQ_TAIGA 0.5
33 #define MGV6_FREQ_JUNGLE 0.5
35 //////////// Mapgen V6 flags
36 #define MGV6_JUNGLES 0x01
37 #define MGV6_BIOMEBLEND 0x02
38 #define MGV6_MUDFLOW 0x04
39 #define MGV6_SNOWBIOMES 0x08
40 #define MGV6_FLAT 0x10
41 #define MGV6_TREES 0x20
44 extern FlagDesc flagdesc_mapgen_v6[];
57 struct MapgenV6Params : public MapgenParams {
58 float freq_desert = 0.45f;
59 float freq_beach = 0.15f;
60 s16 dungeon_ymin = -31000;
61 s16 dungeon_ymax = 31000;
63 NoiseParams np_terrain_base;
64 NoiseParams np_terrain_higher;
65 NoiseParams np_steepness;
66 NoiseParams np_height_select;
71 NoiseParams np_humidity;
73 NoiseParams np_apple_trees;
76 ~MapgenV6Params() = default;
78 void readParams(const Settings *settings);
79 void writeParams(Settings *settings) const;
80 void setDefaultSettings(Settings *settings);
84 class MapgenV6 : public Mapgen {
86 EmergeManager *m_emerge;
95 v3s16 central_area_size;
97 Noise *noise_terrain_base;
98 Noise *noise_terrain_higher;
99 Noise *noise_steepness;
100 Noise *noise_height_select;
104 Noise *noise_humidity;
105 NoiseParams *np_cave;
106 NoiseParams *np_humidity;
107 NoiseParams *np_trees;
108 NoiseParams *np_apple_trees;
110 NoiseParams np_dungeons;
119 content_t c_dirt_with_grass;
121 content_t c_water_source;
122 content_t c_lava_source;
124 content_t c_desert_stone;
125 content_t c_desert_sand;
126 content_t c_dirt_with_snow;
128 content_t c_snowblock;
132 content_t c_mossycobble;
133 content_t c_stair_cobble;
134 content_t c_stair_desert_stone;
136 MapgenV6(MapgenV6Params *params, EmergeManager *emerge);
139 virtual MapgenType getType() const { return MAPGEN_V6; }
141 void makeChunk(BlockMakeData *data);
142 int getGroundLevelAtPoint(v2s16 p);
143 int getSpawnLevelAtPoint(v2s16 p);
145 float baseTerrainLevel(float terrain_base, float terrain_higher,
146 float steepness, float height_select);
147 virtual float baseTerrainLevelFromNoise(v2s16 p);
148 virtual float baseTerrainLevelFromMap(v2s16 p);
149 virtual float baseTerrainLevelFromMap(int index);
151 s16 find_stone_level(v2s16 p2d);
152 bool block_is_underground(u64 seed, v3s16 blockpos);
153 s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
155 float getHumidity(v2s16 p);
156 float getTreeAmount(v2s16 p);
157 bool getHaveAppleTree(v2s16 p);
158 float getMudAmount(v2s16 p);
159 virtual float getMudAmount(int index);
160 bool getHaveBeach(v2s16 p);
161 bool getHaveBeach(int index);
162 BiomeV6Type getBiome(v2s16 p);
163 BiomeV6Type getBiome(int index, v2s16 p);
165 u32 get_blockseed(u64 seed, v3s16 p);
167 virtual void calculateNoise();
168 int generateGround();
170 void flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos);
171 void moveMud(u32 remove_index, u32 place_index,
172 u32 above_remove_index, v2s16 pos, v3s16 em);
174 void placeTreesAndJungleGrass();
175 virtual void generateCaves(int max_stone_y);