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 u32 spflags = MGV6_JUNGLES | MGV6_SNOWBIOMES | MGV6_TREES |
59 MGV6_BIOMEBLEND | MGV6_MUDFLOW;
60 float freq_desert = 0.45f;
61 float freq_beach = 0.15f;
62 s16 dungeon_ymin = -31000;
63 s16 dungeon_ymax = 31000;
65 NoiseParams np_terrain_base;
66 NoiseParams np_terrain_higher;
67 NoiseParams np_steepness;
68 NoiseParams np_height_select;
73 NoiseParams np_humidity;
75 NoiseParams np_apple_trees;
78 ~MapgenV6Params() = default;
80 void readParams(const Settings *settings);
81 void writeParams(Settings *settings) const;
85 class MapgenV6 : public Mapgen {
87 EmergeManager *m_emerge;
96 v3s16 central_area_size;
98 Noise *noise_terrain_base;
99 Noise *noise_terrain_higher;
100 Noise *noise_steepness;
101 Noise *noise_height_select;
105 Noise *noise_humidity;
106 NoiseParams *np_cave;
107 NoiseParams *np_humidity;
108 NoiseParams *np_trees;
109 NoiseParams *np_apple_trees;
111 NoiseParams np_dungeons;
120 content_t c_dirt_with_grass;
122 content_t c_water_source;
123 content_t c_lava_source;
125 content_t c_desert_stone;
126 content_t c_desert_sand;
127 content_t c_dirt_with_snow;
129 content_t c_snowblock;
133 content_t c_mossycobble;
134 content_t c_stair_cobble;
135 content_t c_stair_desert_stone;
137 MapgenV6(MapgenV6Params *params, EmergeManager *emerge);
140 virtual MapgenType getType() const { return MAPGEN_V6; }
142 void makeChunk(BlockMakeData *data);
143 int getGroundLevelAtPoint(v2s16 p);
144 int getSpawnLevelAtPoint(v2s16 p);
146 float baseTerrainLevel(float terrain_base, float terrain_higher,
147 float steepness, float height_select);
148 virtual float baseTerrainLevelFromNoise(v2s16 p);
149 virtual float baseTerrainLevelFromMap(v2s16 p);
150 virtual float baseTerrainLevelFromMap(int index);
152 s16 find_stone_level(v2s16 p2d);
153 bool block_is_underground(u64 seed, v3s16 blockpos);
154 s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
156 float getHumidity(v2s16 p);
157 float getTreeAmount(v2s16 p);
158 bool getHaveAppleTree(v2s16 p);
159 float getMudAmount(v2s16 p);
160 virtual float getMudAmount(int index);
161 bool getHaveBeach(v2s16 p);
162 bool getHaveBeach(int index);
163 BiomeV6Type getBiome(v2s16 p);
164 BiomeV6Type getBiome(int index, v2s16 p);
166 u32 get_blockseed(u64 seed, v3s16 p);
168 virtual void calculateNoise();
169 int generateGround();
171 void flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos);
172 void moveMud(u32 remove_index, u32 place_index,
173 u32 above_remove_index, v2s16 pos, v3s16 em);
175 void placeTreesAndJungleGrass();
176 virtual void generateCaves(int max_stone_y);