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
26 #define AVERAGE_MUD_AMOUNT 4
27 #define DESERT_STONE_BASE -32
30 #define FREQ_SNOW -0.4
31 #define FREQ_TAIGA 0.5
32 #define FREQ_JUNGLE 0.5
34 //////////// Mapgen V6 flags
35 #define MGV6_JUNGLES 0x01
36 #define MGV6_BIOMEBLEND 0x02
37 #define MGV6_MUDFLOW 0x04
38 #define MGV6_SNOWBIOMES 0x08
41 extern FlagDesc flagdesc_mapgen_v6[];
54 struct MapgenV6Params : public MapgenSpecificParams {
58 NoiseParams np_terrain_base;
59 NoiseParams np_terrain_higher;
60 NoiseParams np_steepness;
61 NoiseParams np_height_select;
66 NoiseParams np_humidity;
68 NoiseParams np_apple_trees;
73 void readParams(const Settings *settings);
74 void writeParams(Settings *settings) const;
78 class MapgenV6 : public Mapgen {
80 EmergeManager *m_emerge;
89 v3s16 central_area_size;
92 Noise *noise_terrain_base;
93 Noise *noise_terrain_higher;
94 Noise *noise_steepness;
95 Noise *noise_height_select;
99 Noise *noise_humidity;
100 NoiseParams *np_cave;
101 NoiseParams *np_humidity;
102 NoiseParams *np_trees;
103 NoiseParams *np_apple_trees;
109 content_t c_dirt_with_grass;
111 content_t c_water_source;
112 content_t c_lava_source;
114 content_t c_desert_stone;
115 content_t c_desert_sand;
116 content_t c_dirt_with_snow;
118 content_t c_snowblock;
122 content_t c_mossycobble;
123 content_t c_stair_cobble;
125 MapgenV6(int mapgenid, MapgenParams *params, EmergeManager *emerge);
128 void makeChunk(BlockMakeData *data);
129 int getGroundLevelAtPoint(v2s16 p);
131 float baseTerrainLevel(float terrain_base, float terrain_higher,
132 float steepness, float height_select);
133 virtual float baseTerrainLevelFromNoise(v2s16 p);
134 virtual float baseTerrainLevelFromMap(v2s16 p);
135 virtual float baseTerrainLevelFromMap(int index);
137 s16 find_stone_level(v2s16 p2d);
138 bool block_is_underground(u64 seed, v3s16 blockpos);
139 s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
141 float getHumidity(v2s16 p);
142 float getTreeAmount(v2s16 p);
143 bool getHaveAppleTree(v2s16 p);
144 float getMudAmount(v2s16 p);
145 virtual float getMudAmount(int index);
146 bool getHaveBeach(v2s16 p);
147 bool getHaveBeach(int index);
148 BiomeV6Type getBiome(v2s16 p);
149 BiomeV6Type getBiome(int index, v2s16 p);
151 u32 get_blockseed(u64 seed, v3s16 p);
153 virtual void calculateNoise();
154 int generateGround();
156 void flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos);
158 void placeTreesAndJungleGrass();
159 virtual void generateCaves(int max_stone_y);
163 struct MapgenFactoryV6 : public MapgenFactory {
164 Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge)
166 return new MapgenV6(mgid, params, emerge);
169 MapgenSpecificParams *createMapgenParams()
171 return new MapgenV6Params();