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 "util/metricsbackend.h"
35 #include "nodetimer.h"
36 #include "map_settings_manager.h"
43 class ServerMapSector;
47 class IRollbackManager;
50 class ServerEnvironment;
57 #define MAPTYPE_BASE 0
58 #define MAPTYPE_SERVER 1
59 #define MAPTYPE_CLIENT 2
61 enum MapEditEventType{
62 // Node added (changed from air or something else to something)
64 // Node removed (changed to air)
66 // Node swapped (changed without metadata change)
68 // Node metadata changed
69 MEET_BLOCK_NODE_METADATA_CHANGED,
70 // Anything else (modified_blocks are set unsent)
76 MapEditEventType type = MEET_OTHER;
78 MapNode n = CONTENT_AIR;
79 std::set<v3s16> modified_blocks;
80 bool is_private_change = false;
82 MapEditEvent() = default;
84 VoxelArea getArea() const
93 case MEET_BLOCK_NODE_METADATA_CHANGED:
95 v3s16 np1 = p*MAP_BLOCKSIZE;
96 v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
97 return VoxelArea(np1, np2);
102 for (v3s16 p : modified_blocks) {
103 v3s16 np1 = p*MAP_BLOCKSIZE;
104 v3s16 np2 = np1 + v3s16(1,1,1)*MAP_BLOCKSIZE - v3s16(1,1,1);
115 class MapEventReceiver
118 // event shall be deleted by caller after the call.
119 virtual void onMapEditEvent(const MapEditEvent &event) = 0;
122 class Map /*: public NodeContainer*/
126 Map(IGameDef *gamedef);
128 DISABLE_CLASS_COPY(Map);
130 virtual s32 mapType() const
136 Drop (client) or delete (server) the map.
143 void addEventReceiver(MapEventReceiver *event_receiver);
144 void removeEventReceiver(MapEventReceiver *event_receiver);
145 // event shall be deleted by caller after the call.
146 void dispatchEvent(const MapEditEvent &event);
148 // On failure returns NULL
149 MapSector * getSectorNoGenerateNoLock(v2s16 p2d);
150 // Same as the above (there exists no lock anymore)
151 MapSector * getSectorNoGenerate(v2s16 p2d);
154 This is overloaded by ClientMap and ServerMap to allow
155 their differing fetch methods.
157 virtual MapSector * emergeSector(v2s16 p){ return NULL; }
159 // Returns InvalidPositionException if not found
160 MapBlock * getBlockNoCreate(v3s16 p);
161 // Returns NULL if not found
162 MapBlock * getBlockNoCreateNoEx(v3s16 p);
164 /* Server overrides */
165 virtual MapBlock * emergeBlock(v3s16 p, bool create_blank=true)
166 { return getBlockNoCreateNoEx(p); }
168 inline const NodeDefManager * getNodeDefManager() { return m_nodedef; }
170 bool isValidPosition(v3s16 p);
172 // throws InvalidPositionException if not found
173 void setNode(v3s16 p, MapNode & n);
175 // Returns a CONTENT_IGNORE node if not found
176 // If is_valid_position is not NULL then this will be set to true if the
177 // position is valid, otherwise false
178 MapNode getNode(v3s16 p, bool *is_valid_position = NULL);
181 These handle lighting but not faces.
183 void addNodeAndUpdate(v3s16 p, MapNode n,
184 std::map<v3s16, MapBlock*> &modified_blocks,
185 bool remove_metadata = true);
186 void removeNodeAndUpdate(v3s16 p,
187 std::map<v3s16, MapBlock*> &modified_blocks);
190 Wrappers for the latter ones.
192 Return true if succeeded, false if not.
194 bool addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata = true);
195 bool removeNodeWithEvent(v3s16 p);
197 // Call these before and after saving of many blocks
198 virtual void beginSave() {}
199 virtual void endSave() {}
201 virtual void save(ModifiedState save_level) { FATAL_ERROR("FIXME"); }
203 // Server implements these.
204 // Client leaves them as no-op.
205 virtual bool saveBlock(MapBlock *block) { return false; }
206 virtual bool deleteBlock(v3s16 blockpos) { return false; }
209 Updates usage timers and unloads unused blocks and sectors.
210 Saves modified blocks before unloading on MAPTYPE_SERVER.
212 void timerUpdate(float dtime, float unload_timeout, u32 max_loaded_blocks,
213 std::vector<v3s16> *unloaded_blocks=NULL);
216 Unloads all blocks with a zero refCount().
217 Saves modified blocks before unloading on MAPTYPE_SERVER.
219 void unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks=NULL);
221 // Deletes sectors and their blocks from memory
222 // Takes cache into account
223 // If deleted sector is in sector cache, clears cache
224 void deleteSectors(std::vector<v2s16> &list);
226 // For debug printing. Prints "Map: ", "ServerMap: " or "ClientMap: "
227 virtual void PrintInfo(std::ostream &out);
229 void transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks,
230 ServerEnvironment *env);
234 These are basically coordinate wrappers to MapBlock
237 std::vector<v3s16> findNodesWithMetadata(v3s16 p1, v3s16 p2);
238 NodeMetadata *getNodeMetadata(v3s16 p);
241 * Sets metadata for a node.
242 * This method sets the metadata for a given node.
243 * On success, it returns @c true and the object pointed to
244 * by @p meta is then managed by the system and should
245 * not be deleted by the caller.
247 * In case of failure, the method returns @c false and the
248 * caller is still responsible for deleting the object!
250 * @param p node coordinates
251 * @param meta pointer to @c NodeMetadata object
252 * @return @c true on success, false on failure
254 bool setNodeMetadata(v3s16 p, NodeMetadata *meta);
255 void removeNodeMetadata(v3s16 p);
259 These are basically coordinate wrappers to MapBlock
262 NodeTimer getNodeTimer(v3s16 p);
263 void setNodeTimer(const NodeTimer &t);
264 void removeNodeTimer(v3s16 p);
270 void transforming_liquid_add(v3s16 p);
272 bool isBlockOccluded(MapBlock *block, v3s16 cam_pos_nodes);
274 friend class LuaVoxelManip;
278 std::set<MapEventReceiver*> m_event_receivers;
280 std::map<v2s16, MapSector*> m_sectors;
282 // Be sure to set this to NULL when the cached sector is deleted
283 MapSector *m_sector_cache = nullptr;
284 v2s16 m_sector_cache_p;
286 // Queued transforming water nodes
287 UniqueQueue<v3s16> m_transforming_liquid;
289 // This stores the properties of the nodes on the map.
290 const NodeDefManager *m_nodedef;
292 bool determineAdditionalOcclusionCheck(const v3s16 &pos_camera,
293 const core::aabbox3d<s16> &block_bounds, v3s16 &check);
294 bool isOccluded(const v3s16 &pos_camera, const v3s16 &pos_target,
295 float step, float stepfac, float start_offset, float end_offset,
299 f32 m_transforming_liquid_loop_count_multiplier = 1.0f;
300 u32 m_unprocessed_count = 0;
301 u64 m_inc_trending_up_start_time = 0; // milliseconds
302 bool m_queue_size_timer_started = false;
308 This is the only map class that is able to generate map.
311 class ServerMap : public Map
315 savedir: directory to which map data should be saved
317 ServerMap(const std::string &savedir, IGameDef *gamedef, EmergeManager *emerge, MetricsBackend *mb);
322 return MAPTYPE_SERVER;
326 Get a sector from somewhere.
328 - Check disk (doesn't load blocks)
331 MapSector *createSector(v2s16 p);
334 Blocks are generated by using these and makeBlock().
336 bool blockpos_over_mapgen_limit(v3s16 p);
337 bool initBlockMake(v3s16 blockpos, BlockMakeData *data);
338 void finishBlockMake(BlockMakeData *data,
339 std::map<v3s16, MapBlock*> *changed_blocks);
342 Get a block from somewhere.
346 MapBlock *createBlock(v3s16 p);
349 Forcefully get a block from somewhere.
352 - Create blank filled with CONTENT_IGNORE
355 MapBlock *emergeBlock(v3s16 p, bool create_blank=true);
359 If it does not exist in memory, add it to the emerge queue.
361 - Emerge Queue (deferred disk or generate)
363 MapBlock *getBlockOrEmerge(v3s16 p3d);
365 bool isBlockInQueue(v3s16 pos);
370 static MapDatabase *createDatabase(const std::string &name, const std::string &savedir, Settings &conf);
372 // Call these before and after saving of blocks
376 void save(ModifiedState save_level);
377 void listAllLoadableBlocks(std::vector<v3s16> &dst);
378 void listAllLoadedBlocks(std::vector<v3s16> &dst);
380 MapgenParams *getMapgenParams();
382 bool saveBlock(MapBlock *block);
383 static bool saveBlock(MapBlock *block, MapDatabase *db, int compression_level = -1);
384 MapBlock* loadBlock(v3s16 p);
386 void loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load=false);
388 bool deleteBlock(v3s16 blockpos);
390 void updateVManip(v3s16 pos);
392 // For debug printing
393 virtual void PrintInfo(std::ostream &out);
395 bool isSavingEnabled(){ return m_map_saving_enabled; }
400 * Fixes lighting in one map block.
401 * May modify other blocks as well, as light can spread
402 * out of the specified block.
403 * Returns false if the block is not generated (so nothing
404 * changed), true otherwise.
406 bool repairBlockLight(v3s16 blockpos,
407 std::map<v3s16, MapBlock *> *modified_blocks);
409 MapSettingsManager settings_mgr;
413 EmergeManager *m_emerge;
415 std::string m_savedir;
416 bool m_map_saving_enabled;
418 int m_map_compression_level;
420 std::set<v3s16> m_chunks_in_progress;
423 Metadata is re-written on disk only if this is true.
424 This is reset to false when written on disk.
426 bool m_map_metadata_changed = true;
427 MapDatabase *dbase = nullptr;
428 MapDatabase *dbase_ro = nullptr;
430 MetricCounterPtr m_save_time_counter;
434 #define VMANIP_BLOCK_DATA_INEXIST 1
435 #define VMANIP_BLOCK_CONTAINS_CIGNORE 2
437 class MMVManip : public VoxelManipulator
441 virtual ~MMVManip() = default;
445 VoxelManipulator::clear();
446 m_loaded_blocks.clear();
449 void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
450 bool load_if_inexistent = true);
452 // This is much faster with big chunks of generated data
453 void blitBackAll(std::map<v3s16, MapBlock*> * modified_blocks,
454 bool overwrite_generated = true);
456 bool m_is_dirty = false;
462 value = flags describing the block
464 std::map<v3s16, u8> m_loaded_blocks;