3 Copyright (C) 2010-2015 celeron55, Perttu Ahola <celeron55@gmail.com>
4 Copyright (C) 2013-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
5 Copyright (C) 2014-2017 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 NoiseParams np_terrain_base;
63 NoiseParams np_terrain_higher;
64 NoiseParams np_steepness;
65 NoiseParams np_height_select;
70 NoiseParams np_humidity;
72 NoiseParams np_apple_trees;
75 ~MapgenV6Params() = default;
77 void readParams(const Settings *settings);
78 void writeParams(Settings *settings) const;
82 class MapgenV6 : public Mapgen {
84 EmergeManager *m_emerge;
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 Noise *noise_humidity;
104 NoiseParams *np_cave;
105 NoiseParams *np_humidity;
106 NoiseParams *np_trees;
107 NoiseParams *np_apple_trees;
113 content_t c_dirt_with_grass;
115 content_t c_water_source;
116 content_t c_lava_source;
118 content_t c_desert_stone;
119 content_t c_desert_sand;
120 content_t c_dirt_with_snow;
122 content_t c_snowblock;
126 content_t c_mossycobble;
127 content_t c_stair_cobble;
128 content_t c_stair_desert_stone;
130 MapgenV6(int mapgenid, MapgenV6Params *params, EmergeManager *emerge);
133 virtual MapgenType getType() const { return MAPGEN_V6; }
135 void makeChunk(BlockMakeData *data);
136 int getGroundLevelAtPoint(v2s16 p);
137 int getSpawnLevelAtPoint(v2s16 p);
139 float baseTerrainLevel(float terrain_base, float terrain_higher,
140 float steepness, float height_select);
141 virtual float baseTerrainLevelFromNoise(v2s16 p);
142 virtual float baseTerrainLevelFromMap(v2s16 p);
143 virtual float baseTerrainLevelFromMap(int index);
145 s16 find_stone_level(v2s16 p2d);
146 bool block_is_underground(u64 seed, v3s16 blockpos);
147 s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
149 float getHumidity(v2s16 p);
150 float getTreeAmount(v2s16 p);
151 bool getHaveAppleTree(v2s16 p);
152 float getMudAmount(v2s16 p);
153 virtual float getMudAmount(int index);
154 bool getHaveBeach(v2s16 p);
155 bool getHaveBeach(int index);
156 BiomeV6Type getBiome(v2s16 p);
157 BiomeV6Type getBiome(int index, v2s16 p);
159 u32 get_blockseed(u64 seed, v3s16 p);
161 virtual void calculateNoise();
162 int generateGround();
164 void flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos);
165 void moveMud(u32 remove_index, u32 place_index,
166 u32 above_remove_index, v2s16 pos, v3s16 em);
168 void placeTreesAndJungleGrass();
169 virtual void generateCaves(int max_stone_y);