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.
28 #include "irrlichttypes_bloated.h"
30 #include "constants.h"
32 #include "modifiedstate.h"
33 #include "util/container.h"
34 #include "nodetimer.h"
35 #include "map_settings_manager.h"
41 class ServerMapSector;
45 class IRollbackManager;
47 class ServerEnvironment;
54 #define MAPTYPE_BASE 0
55 #define MAPTYPE_SERVER 1
56 #define MAPTYPE_CLIENT 2
58 enum MapEditEventType{
59 // Node added (changed from air or something else to something)
61 // Node removed (changed to air)
63 // Node swapped (changed without metadata change)
65 // Node metadata of block changed (not knowing which node exactly)
66 // p stores block coordinate
67 MEET_BLOCK_NODE_METADATA_CHANGED,
68 // Anything else (modified_blocks are set unsent)
74 MapEditEventType type = MEET_OTHER;
76 MapNode n = CONTENT_AIR;
77 std::set<v3s16> modified_blocks;
78 u16 already_known_by_peer = 0;
82 MapEditEvent * clone()
84 MapEditEvent *event = new MapEditEvent();
88 event->modified_blocks = modified_blocks;
101 case MEET_BLOCK_NODE_METADATA_CHANGED:
103 v3s16 np1 = p*MAP_BLOCKSIZE;
104 v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
105 return VoxelArea(np1, np2);
110 for(std::set<v3s16>::iterator
111 i = modified_blocks.begin();
112 i != modified_blocks.end(); ++i)
115 v3s16 np1 = p*MAP_BLOCKSIZE;
116 v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
127 class MapEventReceiver
130 // event shall be deleted by caller after the call.
131 virtual void onMapEditEvent(MapEditEvent *event) = 0;
134 class Map /*: public NodeContainer*/
138 Map(std::ostream &dout, IGameDef *gamedef);
140 DISABLE_CLASS_COPY(Map);
142 virtual s32 mapType() const
148 Drop (client) or delete (server) the map.
155 void addEventReceiver(MapEventReceiver *event_receiver);
156 void removeEventReceiver(MapEventReceiver *event_receiver);
157 // event shall be deleted by caller after the call.
158 void dispatchEvent(MapEditEvent *event);
160 // On failure returns NULL
161 MapSector * getSectorNoGenerateNoExNoLock(v2s16 p2d);
162 // Same as the above (there exists no lock anymore)
163 MapSector * getSectorNoGenerateNoEx(v2s16 p2d);
164 // On failure throws InvalidPositionException
165 MapSector * getSectorNoGenerate(v2s16 p2d);
166 // Gets an existing sector or creates an empty one
167 //MapSector * getSectorCreate(v2s16 p2d);
170 This is overloaded by ClientMap and ServerMap to allow
171 their differing fetch methods.
173 virtual MapSector * emergeSector(v2s16 p){ return NULL; }
174 virtual MapSector * emergeSector(v2s16 p,
175 std::map<v3s16, MapBlock*> &changed_blocks){ return NULL; }
177 // Returns InvalidPositionException if not found
178 MapBlock * getBlockNoCreate(v3s16 p);
179 // Returns NULL if not found
180 MapBlock * getBlockNoCreateNoEx(v3s16 p);
182 /* Server overrides */
183 virtual MapBlock * emergeBlock(v3s16 p, bool create_blank=true)
184 { return getBlockNoCreateNoEx(p); }
186 inline INodeDefManager * getNodeDefManager() { return m_nodedef; }
188 // Returns InvalidPositionException if not found
189 bool isNodeUnderground(v3s16 p);
191 bool isValidPosition(v3s16 p);
193 // throws InvalidPositionException if not found
194 void setNode(v3s16 p, MapNode & n);
196 // Returns a CONTENT_IGNORE node if not found
197 // If is_valid_position is not NULL then this will be set to true if the
198 // position is valid, otherwise false
199 MapNode getNodeNoEx(v3s16 p, bool *is_valid_position = NULL);
202 These handle lighting but not faces.
204 void addNodeAndUpdate(v3s16 p, MapNode n,
205 std::map<v3s16, MapBlock*> &modified_blocks,
206 bool remove_metadata = true);
207 void removeNodeAndUpdate(v3s16 p,
208 std::map<v3s16, MapBlock*> &modified_blocks);
211 Wrappers for the latter ones.
213 Return true if succeeded, false if not.
215 bool addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata = true);
216 bool removeNodeWithEvent(v3s16 p);
218 // Call these before and after saving of many blocks
219 virtual void beginSave() { return; }
220 virtual void endSave() { return; }
222 virtual void save(ModifiedState save_level) { FATAL_ERROR("FIXME"); }
224 // Server implements these.
225 // Client leaves them as no-op.
226 virtual bool saveBlock(MapBlock *block) { return false; }
227 virtual bool deleteBlock(v3s16 blockpos) { return false; }
230 Updates usage timers and unloads unused blocks and sectors.
231 Saves modified blocks before unloading on MAPTYPE_SERVER.
233 void timerUpdate(float dtime, float unload_timeout, u32 max_loaded_blocks,
234 std::vector<v3s16> *unloaded_blocks=NULL);
237 Unloads all blocks with a zero refCount().
238 Saves modified blocks before unloading on MAPTYPE_SERVER.
240 void unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks=NULL);
242 // Deletes sectors and their blocks from memory
243 // Takes cache into account
244 // If deleted sector is in sector cache, clears cache
245 void deleteSectors(std::vector<v2s16> &list);
247 // For debug printing. Prints "Map: ", "ServerMap: " or "ClientMap: "
248 virtual void PrintInfo(std::ostream &out);
250 void transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks,
251 ServerEnvironment *env);
255 These are basically coordinate wrappers to MapBlock
258 std::vector<v3s16> findNodesWithMetadata(v3s16 p1, v3s16 p2);
259 NodeMetadata *getNodeMetadata(v3s16 p);
262 * Sets metadata for a node.
263 * This method sets the metadata for a given node.
264 * On success, it returns @c true and the object pointed to
265 * by @p meta is then managed by the system and should
266 * not be deleted by the caller.
268 * In case of failure, the method returns @c false and the
269 * caller is still responsible for deleting the object!
271 * @param p node coordinates
272 * @param meta pointer to @c NodeMetadata object
273 * @return @c true on success, false on failure
275 bool setNodeMetadata(v3s16 p, NodeMetadata *meta);
276 void removeNodeMetadata(v3s16 p);
280 These are basically coordinate wrappers to MapBlock
283 NodeTimer getNodeTimer(v3s16 p);
284 void setNodeTimer(const NodeTimer &t);
285 void removeNodeTimer(v3s16 p);
290 std::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;}
296 void transforming_liquid_add(v3s16 p);
297 s32 transforming_liquid_size();
299 bool isBlockOccluded(MapBlock *block, v3s16 cam_pos_nodes);
301 friend class LuaVoxelManip;
303 std::ostream &m_dout; // A bit deprecated, could be removed
307 std::set<MapEventReceiver*> m_event_receivers;
309 std::map<v2s16, MapSector*> m_sectors;
311 // Be sure to set this to NULL when the cached sector is deleted
312 MapSector *m_sector_cache = nullptr;
313 v2s16 m_sector_cache_p;
315 // Queued transforming water nodes
316 UniqueQueue<v3s16> m_transforming_liquid;
318 // This stores the properties of the nodes on the map.
319 INodeDefManager *m_nodedef;
321 bool isOccluded(v3s16 p0, v3s16 p1, float step, float stepfac,
322 float start_off, float end_off, u32 needed_count);
325 f32 m_transforming_liquid_loop_count_multiplier = 1.0f;
326 u32 m_unprocessed_count = 0;
327 u64 m_inc_trending_up_start_time = 0; // milliseconds
328 bool m_queue_size_timer_started = false;
334 This is the only map class that is able to generate map.
337 class ServerMap : public Map
341 savedir: directory to which map data should be saved
343 ServerMap(const std::string &savedir, IGameDef *gamedef, EmergeManager *emerge);
348 return MAPTYPE_SERVER;
352 Get a sector from somewhere.
354 - Check disk (doesn't load blocks)
357 ServerMapSector *createSector(v2s16 p);
359 bool saoPositionOverLimit(const v3f &p);
362 Blocks are generated by using these and makeBlock().
364 bool blockpos_over_mapgen_limit(v3s16 p);
365 bool initBlockMake(v3s16 blockpos, BlockMakeData *data);
366 void finishBlockMake(BlockMakeData *data,
367 std::map<v3s16, MapBlock*> *changed_blocks);
370 Get a block from somewhere.
374 MapBlock *createBlock(v3s16 p);
377 Forcefully get a block from somewhere.
380 - Create blank filled with CONTENT_IGNORE
383 MapBlock *emergeBlock(v3s16 p, bool create_blank=true);
387 If it does not exist in memory, add it to the emerge queue.
389 - Emerge Queue (deferred disk or generate)
391 MapBlock *getBlockOrEmerge(v3s16 p3d);
393 // Helper for placing objects on ground level
394 s16 findGroundLevel(v2s16 p2d);
397 Misc. helper functions for fiddling with directory and file
400 void createDirs(std::string path);
401 // returns something like "map/sectors/xxxxxxxx"
402 std::string getSectorDir(v2s16 pos, int layout = 2);
403 // dirname: final directory name
404 v2s16 getSectorPos(const std::string &dirname);
405 v3s16 getBlockPos(const std::string §ordir, const std::string &blockfile);
406 static std::string getBlockFilename(v3s16 p);
411 static MapDatabase *createDatabase(const std::string &name, const std::string &savedir, Settings &conf);
413 // Returns true if the database file does not exist
414 bool loadFromFolders();
416 // Call these before and after saving of blocks
420 void save(ModifiedState save_level);
421 void listAllLoadableBlocks(std::vector<v3s16> &dst);
422 void listAllLoadedBlocks(std::vector<v3s16> &dst);
424 MapgenParams *getMapgenParams();
426 /*void saveChunkMeta();
427 void loadChunkMeta();*/
429 // The sector mutex should be locked when calling most of these
431 // This only saves sector-specific data such as the heightmap
433 // DEPRECATED? Sectors have no metadata anymore.
434 void saveSectorMeta(ServerMapSector *sector);
435 MapSector* loadSectorMeta(std::string dirname, bool save_after_load);
436 bool loadSectorMeta(v2s16 p2d);
438 bool saveBlock(MapBlock *block);
439 static bool saveBlock(MapBlock *block, MapDatabase *db);
440 // This will generate a sector with getSector if not found.
441 void loadBlock(const std::string §ordir, const std::string &blockfile,
442 MapSector *sector, bool save_after_load=false);
443 MapBlock* loadBlock(v3s16 p);
445 void loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load=false);
447 bool deleteBlock(v3s16 blockpos);
449 void updateVManip(v3s16 pos);
451 // For debug printing
452 virtual void PrintInfo(std::ostream &out);
454 bool isSavingEnabled(){ return m_map_saving_enabled; }
460 * Fixes lighting in one map block.
461 * May modify other blocks as well, as light can spread
462 * out of the specified block.
463 * Returns false if the block is not generated (so nothing
464 * changed), true otherwise.
466 bool repairBlockLight(v3s16 blockpos,
467 std::map<v3s16, MapBlock *> *modified_blocks);
469 MapSettingsManager settings_mgr;
473 EmergeManager *m_emerge;
475 std::string m_savedir;
476 bool m_map_saving_enabled;
479 // Chunk size in MapSectors
480 // If 0, chunks are disabled.
483 core::map<v2s16, MapChunk*> m_chunks;
487 Metadata is re-written on disk only if this is true.
488 This is reset to false when written on disk.
490 bool m_map_metadata_changed = true;
491 MapDatabase *dbase = nullptr;
495 #define VMANIP_BLOCK_DATA_INEXIST 1
496 #define VMANIP_BLOCK_CONTAINS_CIGNORE 2
498 class MMVManip : public VoxelManipulator
506 VoxelManipulator::clear();
507 m_loaded_blocks.clear();
510 void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
511 bool load_if_inexistent = true);
513 // This is much faster with big chunks of generated data
514 void blitBackAll(std::map<v3s16, MapBlock*> * modified_blocks,
515 bool overwrite_generated = true);
517 bool m_is_dirty = false;
523 value = flags describing the block
525 std::map<v3s16, u8> m_loaded_blocks;