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.
29 #include "irrlichttypes_bloated.h"
31 #include "constants.h"
33 #include "modifiedstate.h"
34 #include "util/container.h"
35 #include "nodetimer.h"
41 class ServerMapSector;
45 class IRollbackManager;
47 class ServerEnvironment;
56 #define MAPTYPE_BASE 0
57 #define MAPTYPE_SERVER 1
58 #define MAPTYPE_CLIENT 2
60 enum MapEditEventType{
61 // Node added (changed from air or something else to something)
63 // Node removed (changed to air)
65 // Node swapped (changed without metadata change)
67 // Node metadata of block changed (not knowing which node exactly)
68 // p stores block coordinate
69 MEET_BLOCK_NODE_METADATA_CHANGED,
70 // Anything else (modified_blocks are set unsent)
76 MapEditEventType type;
79 std::set<v3s16> modified_blocks;
80 u16 already_known_by_peer;
85 already_known_by_peer(0)
88 MapEditEvent * clone()
90 MapEditEvent *event = new MapEditEvent();
94 event->modified_blocks = modified_blocks;
103 case MEET_REMOVENODE:
107 case MEET_BLOCK_NODE_METADATA_CHANGED:
109 v3s16 np1 = p*MAP_BLOCKSIZE;
110 v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
111 return VoxelArea(np1, np2);
116 for(std::set<v3s16>::iterator
117 i = modified_blocks.begin();
118 i != modified_blocks.end(); ++i)
121 v3s16 np1 = p*MAP_BLOCKSIZE;
122 v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
133 class MapEventReceiver
136 // event shall be deleted by caller after the call.
137 virtual void onMapEditEvent(MapEditEvent *event) = 0;
140 class Map /*: public NodeContainer*/
144 Map(std::ostream &dout, IGameDef *gamedef);
147 /*virtual u16 nodeContainerId() const
149 return NODECONTAINER_ID_MAP;
152 virtual s32 mapType() const
158 Drop (client) or delete (server) the map.
165 void addEventReceiver(MapEventReceiver *event_receiver);
166 void removeEventReceiver(MapEventReceiver *event_receiver);
167 // event shall be deleted by caller after the call.
168 void dispatchEvent(MapEditEvent *event);
170 // On failure returns NULL
171 MapSector * getSectorNoGenerateNoExNoLock(v2s16 p2d);
172 // Same as the above (there exists no lock anymore)
173 MapSector * getSectorNoGenerateNoEx(v2s16 p2d);
174 // On failure throws InvalidPositionException
175 MapSector * getSectorNoGenerate(v2s16 p2d);
176 // Gets an existing sector or creates an empty one
177 //MapSector * getSectorCreate(v2s16 p2d);
180 This is overloaded by ClientMap and ServerMap to allow
181 their differing fetch methods.
183 virtual MapSector * emergeSector(v2s16 p){ return NULL; }
184 virtual MapSector * emergeSector(v2s16 p,
185 std::map<v3s16, MapBlock*> &changed_blocks){ return NULL; }
187 // Returns InvalidPositionException if not found
188 MapBlock * getBlockNoCreate(v3s16 p);
189 // Returns NULL if not found
190 MapBlock * getBlockNoCreateNoEx(v3s16 p);
192 /* Server overrides */
193 virtual MapBlock * emergeBlock(v3s16 p, bool create_blank=true)
194 { return getBlockNoCreateNoEx(p); }
196 // Returns InvalidPositionException if not found
197 bool isNodeUnderground(v3s16 p);
199 bool isValidPosition(v3s16 p);
201 // throws InvalidPositionException if not found
202 void setNode(v3s16 p, MapNode & n);
204 // Returns a CONTENT_IGNORE node if not found
205 // If is_valid_position is not NULL then this will be set to true if the
206 // position is valid, otherwise false
207 MapNode getNodeNoEx(v3s16 p, bool *is_valid_position = NULL);
209 void unspreadLight(enum LightBank bank,
210 std::map<v3s16, u8> & from_nodes,
211 std::set<v3s16> & light_sources,
212 std::map<v3s16, MapBlock*> & modified_blocks);
214 void unLightNeighbors(enum LightBank bank,
215 v3s16 pos, u8 lightwas,
216 std::set<v3s16> & light_sources,
217 std::map<v3s16, MapBlock*> & modified_blocks);
219 void spreadLight(enum LightBank bank,
220 std::set<v3s16> & from_nodes,
221 std::map<v3s16, MapBlock*> & modified_blocks);
223 void lightNeighbors(enum LightBank bank,
225 std::map<v3s16, MapBlock*> & modified_blocks);
227 v3s16 getBrightestNeighbour(enum LightBank bank, v3s16 p);
229 s16 propagateSunlight(v3s16 start,
230 std::map<v3s16, MapBlock*> & modified_blocks);
232 void updateLighting(enum LightBank bank,
233 std::map<v3s16, MapBlock*> & a_blocks,
234 std::map<v3s16, MapBlock*> & modified_blocks);
236 void updateLighting(std::map<v3s16, MapBlock*> & a_blocks,
237 std::map<v3s16, MapBlock*> & modified_blocks);
240 These handle lighting but not faces.
242 void addNodeAndUpdate(v3s16 p, MapNode n,
243 std::map<v3s16, MapBlock*> &modified_blocks,
244 bool remove_metadata = true);
245 void removeNodeAndUpdate(v3s16 p,
246 std::map<v3s16, MapBlock*> &modified_blocks);
249 Wrappers for the latter ones.
251 Return true if succeeded, false if not.
253 bool addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata = true);
254 bool removeNodeWithEvent(v3s16 p);
257 Takes the blocks at the edges into account
259 bool getDayNightDiff(v3s16 blockpos);
261 //core::aabbox3d<s16> getDisplayedBlockArea();
263 //bool updateChangedVisibleArea();
265 // Call these before and after saving of many blocks
266 virtual void beginSave() { return; }
267 virtual void endSave() { return; }
269 virtual void save(ModifiedState save_level) { FATAL_ERROR("FIXME"); }
271 // Server implements these.
272 // Client leaves them as no-op.
273 virtual bool saveBlock(MapBlock *block) { return false; }
274 virtual bool deleteBlock(v3s16 blockpos) { return false; }
277 Updates usage timers and unloads unused blocks and sectors.
278 Saves modified blocks before unloading on MAPTYPE_SERVER.
280 void timerUpdate(float dtime, float unload_timeout, u32 max_loaded_blocks,
281 std::vector<v3s16> *unloaded_blocks=NULL);
284 Unloads all blocks with a zero refCount().
285 Saves modified blocks before unloading on MAPTYPE_SERVER.
287 void unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks=NULL);
289 // Deletes sectors and their blocks from memory
290 // Takes cache into account
291 // If deleted sector is in sector cache, clears cache
292 void deleteSectors(std::vector<v2s16> &list);
294 // For debug printing. Prints "Map: ", "ServerMap: " or "ClientMap: "
295 virtual void PrintInfo(std::ostream &out);
297 void transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks);
301 These are basically coordinate wrappers to MapBlock
304 std::vector<v3s16> findNodesWithMetadata(v3s16 p1, v3s16 p2);
305 NodeMetadata *getNodeMetadata(v3s16 p);
308 * Sets metadata for a node.
309 * This method sets the metadata for a given node.
310 * On success, it returns @c true and the object pointed to
311 * by @p meta is then managed by the system and should
312 * not be deleted by the caller.
314 * In case of failure, the method returns @c false and the
315 * caller is still responsible for deleting the object!
317 * @param p node coordinates
318 * @param meta pointer to @c NodeMetadata object
319 * @return @c true on success, false on failure
321 bool setNodeMetadata(v3s16 p, NodeMetadata *meta);
322 void removeNodeMetadata(v3s16 p);
326 These are basically coordinate wrappers to MapBlock
329 NodeTimer getNodeTimer(v3s16 p);
330 void setNodeTimer(v3s16 p, NodeTimer t);
331 void removeNodeTimer(v3s16 p);
336 std::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;}
342 void transforming_liquid_add(v3s16 p);
343 s32 transforming_liquid_size();
346 friend class LuaVoxelManip;
348 std::ostream &m_dout; // A bit deprecated, could be removed
352 std::set<MapEventReceiver*> m_event_receivers;
354 std::map<v2s16, MapSector*> m_sectors;
356 // Be sure to set this to NULL when the cached sector is deleted
357 MapSector *m_sector_cache;
358 v2s16 m_sector_cache_p;
360 // Queued transforming water nodes
361 UniqueQueue<v3s16> m_transforming_liquid;
364 f32 m_transforming_liquid_loop_count_multiplier;
365 u32 m_unprocessed_count;
366 u32 m_inc_trending_up_start_time; // milliseconds
367 bool m_queue_size_timer_started;
373 This is the only map class that is able to generate map.
376 class ServerMap : public Map
380 savedir: directory to which map data should be saved
382 ServerMap(std::string savedir, IGameDef *gamedef, EmergeManager *emerge);
387 return MAPTYPE_SERVER;
391 Get a sector from somewhere.
393 - Check disk (doesn't load blocks)
396 ServerMapSector * createSector(v2s16 p);
399 Blocks are generated by using these and makeBlock().
401 bool initBlockMake(BlockMakeData *data, v3s16 blockpos);
402 void finishBlockMake(BlockMakeData *data,
403 std::map<v3s16, MapBlock*> &changed_blocks);
406 Get a block from somewhere.
410 MapBlock * createBlock(v3s16 p);
413 Forcefully get a block from somewhere.
416 - Create blank filled with CONTENT_IGNORE
419 MapBlock *emergeBlock(v3s16 p, bool create_blank=true);
423 If it does not exist in memory, add it to the emerge queue.
425 - Emerge Queue (deferred disk or generate)
427 MapBlock *getBlockOrEmerge(v3s16 p3d);
429 // Carries out any initialization necessary before block is sent
430 void prepareBlock(MapBlock *block);
432 // Helper for placing objects on ground level
433 s16 findGroundLevel(v2s16 p2d);
436 Misc. helper functions for fiddling with directory and file
439 void createDirs(std::string path);
440 // returns something like "map/sectors/xxxxxxxx"
441 std::string getSectorDir(v2s16 pos, int layout = 2);
442 // dirname: final directory name
443 v2s16 getSectorPos(std::string dirname);
444 v3s16 getBlockPos(std::string sectordir, std::string blockfile);
445 static std::string getBlockFilename(v3s16 p);
450 static Database *createDatabase(const std::string &name, const std::string &savedir, Settings &conf);
451 // Verify we can read/write to the database
452 void verifyDatabase();
454 // Returns true if the database file does not exist
455 bool loadFromFolders();
457 // Call these before and after saving of blocks
461 void save(ModifiedState save_level);
462 void listAllLoadableBlocks(std::vector<v3s16> &dst);
463 void listAllLoadedBlocks(std::vector<v3s16> &dst);
464 // Saves map seed and possibly other stuff
468 /*void saveChunkMeta();
469 void loadChunkMeta();*/
471 // The sector mutex should be locked when calling most of these
473 // This only saves sector-specific data such as the heightmap
475 // DEPRECATED? Sectors have no metadata anymore.
476 void saveSectorMeta(ServerMapSector *sector);
477 MapSector* loadSectorMeta(std::string dirname, bool save_after_load);
478 bool loadSectorMeta(v2s16 p2d);
480 // Full load of a sector including all blocks.
481 // returns true on success, false on failure.
482 bool loadSectorFull(v2s16 p2d);
483 // If sector is not found in memory, try to load it from disk.
484 // Returns true if sector now resides in memory
485 //bool deFlushSector(v2s16 p2d);
487 bool saveBlock(MapBlock *block);
488 static bool saveBlock(MapBlock *block, Database *db);
489 // This will generate a sector with getSector if not found.
490 void loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load=false);
491 MapBlock* loadBlock(v3s16 p);
493 void loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load=false);
495 bool deleteBlock(v3s16 blockpos);
497 void updateVManip(v3s16 pos);
499 // For debug printing
500 virtual void PrintInfo(std::ostream &out);
502 bool isSavingEnabled(){ return m_map_saving_enabled; }
509 EmergeManager *m_emerge;
511 std::string m_savedir;
512 bool m_map_saving_enabled;
515 // Chunk size in MapSectors
516 // If 0, chunks are disabled.
519 core::map<v2s16, MapChunk*> m_chunks;
523 Metadata is re-written on disk only if this is true.
524 This is reset to false when written on disk.
526 bool m_map_metadata_changed;
531 #define VMANIP_BLOCK_DATA_INEXIST 1
532 #define VMANIP_BLOCK_CONTAINS_CIGNORE 2
534 class MMVManip : public VoxelManipulator
542 VoxelManipulator::clear();
543 m_loaded_blocks.clear();
546 void setMap(Map *map)
549 void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
550 bool load_if_inexistent = true);
552 // This is much faster with big chunks of generated data
553 void blitBackAll(std::map<v3s16, MapBlock*> * modified_blocks,
554 bool overwrite_generated = true);
563 value = flags describing the block
565 std::map<v3s16, u8> m_loaded_blocks;