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.
26 #include "util/string.h"
27 #include "util/container.h"
29 #define DEFAULT_MAPGEN "v6"
31 /////////////////// Mapgen flags
34 #define MG_DUNGEONS 0x04
37 #define MG_DECORATIONS 0x20
41 class INodeDefManager;
43 extern FlagDesc flagdesc_mapgen[];
44 extern FlagDesc flagdesc_gennotify[];
49 class VoxelManipulator;
68 GENNOTIFY_LARGECAVE_BEGIN,
69 GENNOTIFY_LARGECAVE_END,
74 // TODO(hmmmm/paramat): make stone type selection dynamic
81 struct GenNotifyEvent {
87 class GenerateNotifier {
90 GenerateNotifier(u32 notify_on, std::set<u32> *notify_on_deco_ids);
92 void setNotifyOn(u32 notify_on);
93 void setNotifyOnDecoIds(std::set<u32> *notify_on_deco_ids);
95 bool addEvent(GenNotifyType type, v3s16 pos, u32 id=0);
96 void getEvents(std::map<std::string, std::vector<v3s16> > &event_map,
97 bool peek_events=false);
101 std::set<u32> *m_notify_on_deco_ids;
102 std::list<GenNotifyEvent> m_notify_events;
105 struct MapgenSpecificParams {
106 virtual void readParams(const Settings *settings) = 0;
107 virtual void writeParams(Settings *settings) const = 0;
108 virtual ~MapgenSpecificParams() {}
111 struct MapgenParams {
118 NoiseParams np_biome_heat;
119 NoiseParams np_biome_heat_blend;
120 NoiseParams np_biome_humidity;
121 NoiseParams np_biome_humidity_blend;
123 MapgenSpecificParams *sparams;
126 mg_name(DEFAULT_MAPGEN),
130 flags(MG_CAVES | MG_LIGHT | MG_DECORATIONS),
131 np_biome_heat(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 5349, 3, 0.5, 2.0)),
132 np_biome_heat_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 13, 2, 1.0, 2.0)),
133 np_biome_humidity(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 842, 3, 0.5, 2.0)),
134 np_biome_humidity_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 90003, 2, 1.0, 2.0)),
138 void load(const Settings &settings);
139 void save(Settings &settings) const;
151 INodeDefManager *ndef;
160 GenerateNotifier gennotify;
163 Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge);
166 static u32 getBlockSeed(v3s16 p, int seed);
167 static u32 getBlockSeed2(v3s16 p, int seed);
168 s16 findGroundLevelFull(v2s16 p2d);
169 s16 findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax);
170 s16 findLiquidSurface(v2s16 p2d, s16 ymin, s16 ymax);
171 void updateHeightmap(v3s16 nmin, v3s16 nmax);
172 void updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax);
174 void setLighting(u8 light, v3s16 nmin, v3s16 nmax);
175 void lightSpread(VoxelArea &a, v3s16 p, u8 light);
176 void calcLighting(v3s16 nmin, v3s16 nmax, v3s16 full_nmin, v3s16 full_nmax,
177 bool propagate_shadow = true);
178 void propagateSunlight(v3s16 nmin, v3s16 nmax, bool propagate_shadow);
179 void spreadLight(v3s16 nmin, v3s16 nmax);
181 virtual void makeChunk(BlockMakeData *data) {}
182 virtual int getGroundLevelAtPoint(v2s16 p) { return 0; }
184 // getSpawnLevelAtPoint() is a function within each mapgen that returns a
185 // suitable y co-ordinate for player spawn ('suitable' usually meaning
186 // within 16 nodes of water_level). If a suitable spawn level cannot be
187 // found at the specified (X, Z) 'MAX_MAP_GENERATION_LIMIT' is returned to
188 // signify this and to cause Server::findSpawnPos() to try another (X, Z).
189 virtual int getSpawnLevelAtPoint(v2s16 p) { return 0; }
192 DISABLE_CLASS_COPY(Mapgen);
195 struct MapgenFactory {
196 virtual Mapgen *createMapgen(int mgid, MapgenParams *params,
197 EmergeManager *emerge) = 0;
198 virtual MapgenSpecificParams *createMapgenParams() = 0;
199 virtual ~MapgenFactory() {}