3 Copyright (C) 2010-2011 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 General Public License as published by
7 the Free Software Foundation; either version 2 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 General Public License for more details.
15 You should have received a copy of the GNU 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>
28 #include "common_irrlicht.h"
30 #include "mapblock_nodemod.h"
31 #include "constants.h"
35 class ServerMapSector;
36 class ClientMapSector;
48 #define MAPTYPE_BASE 0
49 #define MAPTYPE_SERVER 1
50 #define MAPTYPE_CLIENT 2
52 enum MapEditEventType{
53 // Node added (changed from air or something else to something)
55 // Node removed (changed to air)
57 // Node metadata of block changed (not knowing which node exactly)
58 // p stores block coordinate
59 MEET_BLOCK_NODE_METADATA_CHANGED,
66 MapEditEventType type;
69 core::map<v3s16, bool> modified_blocks;
70 u16 already_known_by_peer;
74 already_known_by_peer(0)
78 MapEditEvent * clone()
80 MapEditEvent *event = new MapEditEvent();
84 for(core::map<v3s16, bool>::Iterator
85 i = modified_blocks.getIterator();
86 i.atEnd()==false; i++)
88 v3s16 p = i.getNode()->getKey();
89 bool v = i.getNode()->getValue();
90 event->modified_blocks.insert(p, v);
96 class MapEventReceiver
99 // event shall be deleted by caller after the call.
100 virtual void onMapEditEvent(MapEditEvent *event) = 0;
103 class Map /*: public NodeContainer*/
107 Map(std::ostream &dout);
110 /*virtual u16 nodeContainerId() const
112 return NODECONTAINER_ID_MAP;
115 virtual s32 mapType() const
121 Drop (client) or delete (server) the map.
128 void addEventReceiver(MapEventReceiver *event_receiver);
129 void removeEventReceiver(MapEventReceiver *event_receiver);
130 // event shall be deleted by caller after the call.
131 void dispatchEvent(MapEditEvent *event);
133 // On failure returns NULL
134 MapSector * getSectorNoGenerateNoExNoLock(v2s16 p2d);
135 // Same as the above (there exists no lock anymore)
136 MapSector * getSectorNoGenerateNoEx(v2s16 p2d);
137 // On failure throws InvalidPositionException
138 MapSector * getSectorNoGenerate(v2s16 p2d);
139 // Gets an existing sector or creates an empty one
140 //MapSector * getSectorCreate(v2s16 p2d);
143 This is overloaded by ClientMap and ServerMap to allow
144 their differing fetch methods.
146 virtual MapSector * emergeSector(v2s16 p){ return NULL; }
147 virtual MapSector * emergeSector(v2s16 p,
148 core::map<v3s16, MapBlock*> &changed_blocks){ return NULL; }
150 // Returns InvalidPositionException if not found
151 MapBlock * getBlockNoCreate(v3s16 p);
152 // Returns NULL if not found
153 MapBlock * getBlockNoCreateNoEx(v3s16 p);
155 // Returns InvalidPositionException if not found
156 bool isNodeUnderground(v3s16 p);
158 bool isValidPosition(v3s16 p);
160 // throws InvalidPositionException if not found
161 MapNode getNode(v3s16 p);
163 // throws InvalidPositionException if not found
164 void setNode(v3s16 p, MapNode & n);
166 // Returns a CONTENT_IGNORE node if not found
167 MapNode getNodeNoEx(v3s16 p);
169 void unspreadLight(enum LightBank bank,
170 core::map<v3s16, u8> & from_nodes,
171 core::map<v3s16, bool> & light_sources,
172 core::map<v3s16, MapBlock*> & modified_blocks);
174 void unLightNeighbors(enum LightBank bank,
175 v3s16 pos, u8 lightwas,
176 core::map<v3s16, bool> & light_sources,
177 core::map<v3s16, MapBlock*> & modified_blocks);
179 void spreadLight(enum LightBank bank,
180 core::map<v3s16, bool> & from_nodes,
181 core::map<v3s16, MapBlock*> & modified_blocks);
183 void lightNeighbors(enum LightBank bank,
185 core::map<v3s16, MapBlock*> & modified_blocks);
187 v3s16 getBrightestNeighbour(enum LightBank bank, v3s16 p);
189 s16 propagateSunlight(v3s16 start,
190 core::map<v3s16, MapBlock*> & modified_blocks);
192 void updateLighting(enum LightBank bank,
193 core::map<v3s16, MapBlock*> & a_blocks,
194 core::map<v3s16, MapBlock*> & modified_blocks);
196 void updateLighting(core::map<v3s16, MapBlock*> & a_blocks,
197 core::map<v3s16, MapBlock*> & modified_blocks);
200 These handle lighting but not faces.
202 void addNodeAndUpdate(v3s16 p, MapNode n,
203 core::map<v3s16, MapBlock*> &modified_blocks);
204 void removeNodeAndUpdate(v3s16 p,
205 core::map<v3s16, MapBlock*> &modified_blocks);
208 Wrappers for the latter ones.
210 Return true if succeeded, false if not.
212 bool addNodeWithEvent(v3s16 p, MapNode n);
213 bool removeNodeWithEvent(v3s16 p);
216 Takes the blocks at the edges into account
218 bool dayNightDiffed(v3s16 blockpos);
220 //core::aabbox3d<s16> getDisplayedBlockArea();
222 //bool updateChangedVisibleArea();
224 virtual void save(bool only_changed){assert(0);};
226 // Server implements this
227 virtual void saveBlock(MapBlock *block){};
232 void timerUpdate(float dtime);
234 // Deletes sectors and their blocks from memory
235 // Takes cache into account
236 // If deleted sector is in sector cache, clears cache
237 void deleteSectors(core::list<v2s16> &list);
241 = flush changed to disk and delete from memory, if usage timer of
242 block is more than timeout
244 void unloadUnusedData(float timeout,
245 core::list<v3s16> *deleted_blocks=NULL);
247 // For debug printing
248 virtual void PrintInfo(std::ostream &out);
250 void transformLiquids(core::map<v3s16, MapBlock*> & modified_blocks);
254 These are basically coordinate wrappers to MapBlock
257 NodeMetadata* getNodeMetadata(v3s16 p);
258 void setNodeMetadata(v3s16 p, NodeMetadata *meta);
259 void removeNodeMetadata(v3s16 p);
260 void nodeMetadataStep(float dtime,
261 core::map<v3s16, MapBlock*> &changed_blocks);
266 core::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;}
274 std::ostream &m_dout;
276 core::map<MapEventReceiver*, bool> m_event_receivers;
278 core::map<v2s16, MapSector*> m_sectors;
280 // Be sure to set this to NULL when the cached sector is deleted
281 MapSector *m_sector_cache;
282 v2s16 m_sector_cache_p;
284 // Queued transforming water nodes
285 UniqueQueue<v3s16> m_transforming_liquid;
291 This is the only map class that is able to generate map.
294 class ServerMap : public Map
298 savedir: directory to which map data should be saved
300 ServerMap(std::string savedir);
305 return MAPTYPE_SERVER;
309 Get a sector from somewhere.
311 - Check disk (doesn't load blocks)
314 ServerMapSector * createSector(v2s16 p);
317 Blocks are generated by using these and makeBlock().
319 void initBlockMake(mapgen::BlockMakeData *data, v3s16 blockpos);
320 MapBlock* finishBlockMake(mapgen::BlockMakeData *data,
321 core::map<v3s16, MapBlock*> &changed_blocks);
323 // A non-threaded wrapper to the above
324 MapBlock * generateBlock(
326 core::map<v3s16, MapBlock*> &modified_blocks
330 Get a block from somewhere.
334 MapBlock * createBlock(v3s16 p);
338 NOTE: This comment might be outdated
340 Forcefully get a block from somewhere.
342 InvalidPositionException possible if only_from_disk==true
345 changed_blocks: Blocks that have been modified
347 MapBlock * emergeBlock(
350 core::map<v3s16, MapBlock*> &changed_blocks,
351 core::map<v3s16, MapBlock*> &lighting_invalidated_blocks
355 // Helper for placing objects on ground level
356 s16 findGroundLevel(v2s16 p2d);
359 Misc. helper functions for fiddling with directory and file
362 void createDirs(std::string path);
363 // returns something like "map/sectors/xxxxxxxx"
364 std::string getSectorDir(v2s16 pos, int layout = 2);
365 // dirname: final directory name
366 v2s16 getSectorPos(std::string dirname);
367 v3s16 getBlockPos(std::string sectordir, std::string blockfile);
368 static std::string getBlockFilename(v3s16 p);
370 void save(bool only_changed);
373 // Saves map seed and possibly other stuff
377 /*void saveChunkMeta();
378 void loadChunkMeta();*/
380 // The sector mutex should be locked when calling most of these
382 // This only saves sector-specific data such as the heightmap
384 // DEPRECATED? Sectors have no metadata anymore.
385 void saveSectorMeta(ServerMapSector *sector);
386 MapSector* loadSectorMeta(std::string dirname, bool save_after_load);
387 bool loadSectorMeta(v2s16 p2d);
389 // Full load of a sector including all blocks.
390 // returns true on success, false on failure.
391 bool loadSectorFull(v2s16 p2d);
392 // If sector is not found in memory, try to load it from disk.
393 // Returns true if sector now resides in memory
394 //bool deFlushSector(v2s16 p2d);
396 void saveBlock(MapBlock *block);
397 // This will generate a sector with getSector if not found.
398 void loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load=false);
399 MapBlock* loadBlock(v3s16 p);
401 // For debug printing
402 virtual void PrintInfo(std::ostream &out);
404 bool isSavingEnabled(){ return m_map_saving_enabled; }
406 u64 getSeed(){ return m_seed; }
409 // Seed used for all kinds of randomness
412 std::string m_savedir;
413 bool m_map_saving_enabled;
416 // Chunk size in MapSectors
417 // If 0, chunks are disabled.
420 core::map<v2s16, MapChunk*> m_chunks;
424 Metadata is re-written on disk only if this is true.
425 This is reset to false when written on disk.
427 bool m_map_metadata_changed;
436 struct MapDrawControl
441 wanted_max_blocks(0),
444 blocks_would_have_drawn(0)
447 // Overrides limits by drawing everything
449 // Wanted drawing range
451 // Maximum number of blocks to draw
452 u32 wanted_max_blocks;
453 // Blocks in this range are drawn regardless of number of blocks drawn
454 float wanted_min_range;
455 // Number of blocks rendered is written here by the renderer
457 // Number of blocks that would have been drawn in wanted_range
458 u32 blocks_would_have_drawn;
466 This is the only map class that is able to render itself on screen.
469 class ClientMap : public Map, public scene::ISceneNode
474 MapDrawControl &control,
475 scene::ISceneNode* parent,
476 scene::ISceneManager* mgr,
484 return MAPTYPE_CLIENT;
492 void updateCamera(v3f pos, v3f dir)
494 JMutexAutoLock lock(m_camera_mutex);
495 m_camera_position = pos;
496 m_camera_direction = dir;
500 Forcefully get a sector from somewhere
502 MapSector * emergeSector(v2s16 p);
504 //void deSerializeSector(v2s16 p2d, std::istream &is);
510 virtual void OnRegisterSceneNode();
512 virtual void render()
514 video::IVideoDriver* driver = SceneManager->getVideoDriver();
515 driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
516 renderMap(driver, SceneManager->getSceneNodeRenderPass());
519 virtual const core::aabbox3d<f32>& getBoundingBox() const
524 void renderMap(video::IVideoDriver* driver, s32 pass);
527 Methods for setting temporary modifications to nodes for
530 Returns true if something changed.
532 All blocks whose mesh could have been changed are inserted
535 bool setTempMod(v3s16 p, NodeMod mod,
536 core::map<v3s16, MapBlock*> *affected_blocks=NULL);
537 bool clearTempMod(v3s16 p,
538 core::map<v3s16, MapBlock*> *affected_blocks=NULL);
539 // Efficient implementation needs a cache of TempMods
540 //void clearTempMods();
542 void expireMeshes(bool only_daynight_diffed);
545 Update the faces of the given block and blocks on the
548 void updateMeshes(v3s16 blockpos, u32 daynight_ratio);
550 // Update meshes that touch the node
551 //void updateNodeMeshes(v3s16 nodepos, u32 daynight_ratio);
553 // For debug printing
554 virtual void PrintInfo(std::ostream &out);
556 // Check if sector was drawn on last render()
557 bool sectorWasDrawn(v2s16 p)
559 return (m_last_drawn_sectors.find(p) != NULL);
565 core::aabbox3d<f32> m_box;
567 // This is the master heightmap mesh
568 //scene::SMesh *mesh;
571 MapDrawControl &m_control;
573 v3f m_camera_position;
574 v3f m_camera_direction;
575 JMutex m_camera_mutex;
577 core::map<v2s16, bool> m_last_drawn_sectors;
582 class MapVoxelManipulator : public VoxelManipulator
585 MapVoxelManipulator(Map *map);
586 virtual ~MapVoxelManipulator();
590 VoxelManipulator::clear();
591 m_loaded_blocks.clear();
594 virtual void emerge(VoxelArea a, s32 caller_id=-1);
596 void blitBack(core::map<v3s16, MapBlock*> & modified_blocks);
602 value = block existed when loaded
604 core::map<v3s16, bool> m_loaded_blocks;
607 class ManualMapVoxelManipulator : public MapVoxelManipulator
610 ManualMapVoxelManipulator(Map *map);
611 virtual ~ManualMapVoxelManipulator();
613 void setMap(Map *map)
616 virtual void emerge(VoxelArea a, s32 caller_id=-1);
618 void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max);
620 // This is much faster with big chunks of generated data
621 void blitBackAll(core::map<v3s16, MapBlock*> * modified_blocks);