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.
24 #include <jmutexautolock.h>
32 #include "irrlichttypes_bloated.h"
34 #include "constants.h"
36 #include "mapgen.h" //for BlockMakeData and EmergeManager
37 #include "modifiedstate.h"
38 #include "util/container.h"
39 #include "nodetimer.h"
47 class ServerMapSector;
51 class IRollbackReportSink;
60 #define MAPTYPE_BASE 0
61 #define MAPTYPE_SERVER 1
62 #define MAPTYPE_CLIENT 2
64 enum MapEditEventType{
65 // Node added (changed from air or something else to something)
67 // Node removed (changed to air)
69 // Node metadata of block changed (not knowing which node exactly)
70 // p stores block coordinate
71 MEET_BLOCK_NODE_METADATA_CHANGED,
72 // Anything else (modified_blocks are set unsent)
78 MapEditEventType type;
81 std::set<v3s16> modified_blocks;
82 u16 already_known_by_peer;
86 already_known_by_peer(0)
90 MapEditEvent * clone()
92 MapEditEvent *event = new MapEditEvent();
96 event->modified_blocks = modified_blocks;
105 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 allow_generate=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 MapNode getNode(v3s16 p);
204 // throws InvalidPositionException if not found
205 void setNode(v3s16 p, MapNode & n);
207 // Returns a CONTENT_IGNORE node if not found
208 MapNode getNodeNoEx(v3s16 p);
210 void unspreadLight(enum LightBank bank,
211 std::map<v3s16, u8> & from_nodes,
212 std::set<v3s16> & light_sources,
213 std::map<v3s16, MapBlock*> & modified_blocks);
215 void unLightNeighbors(enum LightBank bank,
216 v3s16 pos, u8 lightwas,
217 std::set<v3s16> & light_sources,
218 std::map<v3s16, MapBlock*> & modified_blocks);
220 void spreadLight(enum LightBank bank,
221 std::set<v3s16> & from_nodes,
222 std::map<v3s16, MapBlock*> & modified_blocks);
224 void lightNeighbors(enum LightBank bank,
226 std::map<v3s16, MapBlock*> & modified_blocks);
228 v3s16 getBrightestNeighbour(enum LightBank bank, v3s16 p);
230 s16 propagateSunlight(v3s16 start,
231 std::map<v3s16, MapBlock*> & modified_blocks);
233 void updateLighting(enum LightBank bank,
234 std::map<v3s16, MapBlock*> & a_blocks,
235 std::map<v3s16, MapBlock*> & modified_blocks);
237 void updateLighting(std::map<v3s16, MapBlock*> & a_blocks,
238 std::map<v3s16, MapBlock*> & modified_blocks);
241 These handle lighting but not faces.
243 void addNodeAndUpdate(v3s16 p, MapNode n,
244 std::map<v3s16, MapBlock*> &modified_blocks);
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);
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){assert(0);};
271 // Server implements this.
272 // Client leaves it as no-op.
273 virtual void saveBlock(MapBlock *block){};
276 Updates usage timers and unloads unused blocks and sectors.
277 Saves modified blocks before unloading on MAPTYPE_SERVER.
279 void timerUpdate(float dtime, float unload_timeout,
280 std::list<v3s16> *unloaded_blocks=NULL);
282 // Deletes sectors and their blocks from memory
283 // Takes cache into account
284 // If deleted sector is in sector cache, clears cache
285 void deleteSectors(std::list<v2s16> &list);
290 = flush changed to disk and delete from memory, if usage timer of
291 block is more than timeout
293 void unloadUnusedData(float timeout,
294 core::list<v3s16> *deleted_blocks=NULL);
297 // For debug printing. Prints "Map: ", "ServerMap: " or "ClientMap: "
298 virtual void PrintInfo(std::ostream &out);
300 void transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks);
301 void transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks);
305 These are basically coordinate wrappers to MapBlock
308 NodeMetadata* getNodeMetadata(v3s16 p);
309 void setNodeMetadata(v3s16 p, NodeMetadata *meta);
310 void removeNodeMetadata(v3s16 p);
314 These are basically coordinate wrappers to MapBlock
317 NodeTimer getNodeTimer(v3s16 p);
318 void setNodeTimer(v3s16 p, NodeTimer t);
319 void removeNodeTimer(v3s16 p);
324 std::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;}
330 void transforming_liquid_add(v3s16 p);
331 s32 transforming_liquid_size();
335 std::ostream &m_dout; // A bit deprecated, could be removed
339 std::set<MapEventReceiver*> m_event_receivers;
341 std::map<v2s16, MapSector*> m_sectors;
343 // Be sure to set this to NULL when the cached sector is deleted
344 MapSector *m_sector_cache;
345 v2s16 m_sector_cache_p;
347 // Queued transforming water nodes
348 UniqueQueue<v3s16> m_transforming_liquid;
354 This is the only map class that is able to generate map.
357 class ServerMap : public Map
361 savedir: directory to which map data should be saved
363 ServerMap(std::string savedir, IGameDef *gamedef, EmergeManager *emerge);
368 return MAPTYPE_SERVER;
372 Get a sector from somewhere.
374 - Check disk (doesn't load blocks)
377 ServerMapSector * createSector(v2s16 p);
380 Blocks are generated by using these and makeBlock().
382 bool initBlockMake(BlockMakeData *data, v3s16 blockpos);
383 MapBlock *finishBlockMake(BlockMakeData *data,
384 std::map<v3s16, MapBlock*> &changed_blocks);
387 Get a block from somewhere.
391 MapBlock * createBlock(v3s16 p);
394 Forcefully get a block from somewhere.
397 - Create blank filled with CONTENT_IGNORE
400 MapBlock * emergeBlock(v3s16 p, bool create_blank=true);
402 // Helper for placing objects on ground level
403 s16 findGroundLevel(v2s16 p2d);
406 Misc. helper functions for fiddling with directory and file
409 void createDirs(std::string path);
410 // returns something like "map/sectors/xxxxxxxx"
411 std::string getSectorDir(v2s16 pos, int layout = 2);
412 // dirname: final directory name
413 v2s16 getSectorPos(std::string dirname);
414 v3s16 getBlockPos(std::string sectordir, std::string blockfile);
415 static std::string getBlockFilename(v3s16 p);
420 // Create the database structure
421 void createDatabase();
422 // Verify we can read/write to the database
423 void verifyDatabase();
424 // Get an integer suitable for a block
425 static sqlite3_int64 getBlockAsInteger(const v3s16 pos);
426 static v3s16 getIntegerAsBlock(sqlite3_int64 i);
428 // Returns true if the database file does not exist
429 bool loadFromFolders();
431 // Call these before and after saving of blocks
435 void save(ModifiedState save_level);
437 void listAllLoadableBlocks(std::list<v3s16> &dst);
438 // Saves map seed and possibly other stuff
442 /*void saveChunkMeta();
443 void loadChunkMeta();*/
445 // The sector mutex should be locked when calling most of these
447 // This only saves sector-specific data such as the heightmap
449 // DEPRECATED? Sectors have no metadata anymore.
450 void saveSectorMeta(ServerMapSector *sector);
451 MapSector* loadSectorMeta(std::string dirname, bool save_after_load);
452 bool loadSectorMeta(v2s16 p2d);
454 // Full load of a sector including all blocks.
455 // returns true on success, false on failure.
456 bool loadSectorFull(v2s16 p2d);
457 // If sector is not found in memory, try to load it from disk.
458 // Returns true if sector now resides in memory
459 //bool deFlushSector(v2s16 p2d);
461 void saveBlock(MapBlock *block);
462 // This will generate a sector with getSector if not found.
463 void loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load=false);
464 MapBlock* loadBlock(v3s16 p);
466 void loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load=false);
468 // For debug printing
469 virtual void PrintInfo(std::ostream &out);
471 bool isSavingEnabled(){ return m_map_saving_enabled; }
473 u64 getSeed(){ return m_seed; }
475 MapgenParams *getMapgenParams(){ return m_mgparams; }
477 // Parameters fed to the Mapgen
478 MapgenParams *m_mgparams;
480 // Seed used for all kinds of randomness in generation
484 EmergeManager *m_emerge;
486 std::string m_savedir;
487 bool m_map_saving_enabled;
490 // Chunk size in MapSectors
491 // If 0, chunks are disabled.
494 core::map<v2s16, MapChunk*> m_chunks;
498 Metadata is re-written on disk only if this is true.
499 This is reset to false when written on disk.
501 bool m_map_metadata_changed;
504 SQLite database and statements
507 sqlite3_stmt *m_database_read;
508 sqlite3_stmt *m_database_write;
509 sqlite3_stmt *m_database_list;
512 #define VMANIP_BLOCK_DATA_INEXIST 1
513 #define VMANIP_BLOCK_CONTAINS_CIGNORE 2
515 class MapVoxelManipulator : public VoxelManipulator
518 MapVoxelManipulator(Map *map);
519 virtual ~MapVoxelManipulator();
523 VoxelManipulator::clear();
524 m_loaded_blocks.clear();
527 virtual void emerge(VoxelArea a, s32 caller_id=-1);
529 void blitBack(std::map<v3s16, MapBlock*> & modified_blocks);
535 value = flags describing the block
537 std::map<v3s16, u8> m_loaded_blocks;
540 class ManualMapVoxelManipulator : public MapVoxelManipulator
543 ManualMapVoxelManipulator(Map *map);
544 virtual ~ManualMapVoxelManipulator();
546 void setMap(Map *map)
549 virtual void emerge(VoxelArea a, s32 caller_id=-1);
551 void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max);
553 // This is much faster with big chunks of generated data
554 void blitBackAll(std::map<v3s16, MapBlock*> * modified_blocks);