3 Copyright (C) 2010 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.
29 #define sleep_s(x) Sleep((x*1000))
32 #define sleep_s(x) sleep(x)
35 #include "common_irrlicht.h"
38 #include "mapsector.h"
39 #include "constants.h"
42 #include "nodemetadata.h"
44 #define MAPTYPE_BASE 0
45 #define MAPTYPE_SERVER 1
46 #define MAPTYPE_CLIENT 2
48 enum MapEditEventType{
56 MapEditEventType type;
59 core::map<v3s16, bool> modified_blocks;
60 u16 already_known_by_peer;
64 already_known_by_peer(0)
68 MapEditEvent * clone()
70 MapEditEvent *event = new MapEditEvent();
74 for(core::map<v3s16, bool>::Iterator
75 i = modified_blocks.getIterator();
76 i.atEnd()==false; i++)
78 v3s16 p = i.getNode()->getKey();
79 bool v = i.getNode()->getValue();
80 event->modified_blocks.insert(p, v);
86 class MapEventReceiver
89 // event shall be deleted by caller after the call.
90 virtual void onMapEditEvent(MapEditEvent *event) = 0;
93 class Map : public NodeContainer
97 Map(std::ostream &dout);
100 virtual u16 nodeContainerId() const
102 return NODECONTAINER_ID_MAP;
105 virtual s32 mapType() const
111 Drop (client) or delete (server) the map.
118 void addEventReceiver(MapEventReceiver *event_receiver);
119 void removeEventReceiver(MapEventReceiver *event_receiver);
120 // event shall be deleted by caller after the call.
121 void dispatchEvent(MapEditEvent *event);
123 // On failure returns NULL
124 MapSector * getSectorNoGenerateNoExNoLock(v2s16 p2d);
125 // On failure returns NULL
126 MapSector * getSectorNoGenerateNoEx(v2s16 p2d);
127 // On failure throws InvalidPositionException
128 MapSector * getSectorNoGenerate(v2s16 p2d);
129 // Gets an existing sector or creates an empty one
130 //MapSector * getSectorCreate(v2s16 p2d);
133 This is overloaded by ClientMap and ServerMap to allow
134 their differing fetch methods.
136 virtual MapSector * emergeSector(v2s16 p){ return NULL; }
137 virtual MapSector * emergeSector(v2s16 p,
138 core::map<v3s16, MapBlock*> &changed_blocks){ return NULL; }
140 // Returns InvalidPositionException if not found
141 MapBlock * getBlockNoCreate(v3s16 p);
142 // Returns NULL if not found
143 MapBlock * getBlockNoCreateNoEx(v3s16 p);
144 // Gets an existing block or creates an empty one
145 //MapBlock * getBlockCreate(v3s16 p);
147 // Returns InvalidPositionException if not found
148 bool isNodeUnderground(v3s16 p);
150 // virtual from NodeContainer
151 bool isValidPosition(v3s16 p)
153 v3s16 blockpos = getNodeBlockPos(p);
156 blockref = getBlockNoCreate(blockpos);
158 catch(InvalidPositionException &e)
163 /*v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
164 bool is_valid = blockref->isValidPosition(relpos);
168 // virtual from NodeContainer
169 // throws InvalidPositionException if not found
170 MapNode getNode(v3s16 p)
172 v3s16 blockpos = getNodeBlockPos(p);
173 MapBlock * blockref = getBlockNoCreate(blockpos);
174 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
176 return blockref->getNodeNoCheck(relpos);
179 // virtual from NodeContainer
180 // throws InvalidPositionException if not found
181 void setNode(v3s16 p, MapNode & n)
183 v3s16 blockpos = getNodeBlockPos(p);
184 MapBlock * blockref = getBlockNoCreate(blockpos);
185 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
186 blockref->setNodeNoCheck(relpos, n);
189 // Returns a CONTENT_IGNORE node if not found
190 MapNode getNodeNoEx(v3s16 p)
193 v3s16 blockpos = getNodeBlockPos(p);
194 MapBlock * blockref = getBlockNoCreate(blockpos);
195 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
197 return blockref->getNodeNoCheck(relpos);
199 catch(InvalidPositionException &e)
201 return MapNode(CONTENT_IGNORE);
205 void unspreadLight(enum LightBank bank,
206 core::map<v3s16, u8> & from_nodes,
207 core::map<v3s16, bool> & light_sources,
208 core::map<v3s16, MapBlock*> & modified_blocks);
210 void unLightNeighbors(enum LightBank bank,
211 v3s16 pos, u8 lightwas,
212 core::map<v3s16, bool> & light_sources,
213 core::map<v3s16, MapBlock*> & modified_blocks);
215 void spreadLight(enum LightBank bank,
216 core::map<v3s16, bool> & from_nodes,
217 core::map<v3s16, MapBlock*> & modified_blocks);
219 void lightNeighbors(enum LightBank bank,
221 core::map<v3s16, MapBlock*> & modified_blocks);
223 v3s16 getBrightestNeighbour(enum LightBank bank, v3s16 p);
225 s16 propagateSunlight(v3s16 start,
226 core::map<v3s16, MapBlock*> & modified_blocks);
228 void updateLighting(enum LightBank bank,
229 core::map<v3s16, MapBlock*> & a_blocks,
230 core::map<v3s16, MapBlock*> & modified_blocks);
232 void updateLighting(core::map<v3s16, MapBlock*> & a_blocks,
233 core::map<v3s16, MapBlock*> & modified_blocks);
236 These handle lighting but not faces.
238 void addNodeAndUpdate(v3s16 p, MapNode n,
239 core::map<v3s16, MapBlock*> &modified_blocks);
240 void removeNodeAndUpdate(v3s16 p,
241 core::map<v3s16, MapBlock*> &modified_blocks);
244 Wrappers for the latter ones.
246 Return true if succeeded, false if not.
248 bool addNodeWithEvent(v3s16 p, MapNode n);
249 bool removeNodeWithEvent(v3s16 p);
252 Takes the blocks at the edges into account
254 bool dayNightDiffed(v3s16 blockpos);
256 //core::aabbox3d<s16> getDisplayedBlockArea();
258 //bool updateChangedVisibleArea();
260 virtual void save(bool only_changed){assert(0);};
265 void timerUpdate(float dtime);
267 // Takes cache into account
268 // sector mutex should be locked when calling
269 void deleteSectors(core::list<v2s16> &list, bool only_blocks);
271 // Returns count of deleted sectors
272 u32 deleteUnusedSectors(float timeout, bool only_blocks=false,
273 core::list<v3s16> *deleted_blocks=NULL);
275 // For debug printing
276 virtual void PrintInfo(std::ostream &out);
278 void transformLiquids(core::map<v3s16, MapBlock*> & modified_blocks);
282 These are basically coordinate wrappers to MapBlock
285 NodeMetadata* getNodeMetadata(v3s16 p);
286 void setNodeMetadata(v3s16 p, NodeMetadata *meta);
287 void removeNodeMetadata(v3s16 p);
295 std::ostream &m_dout;
297 core::map<MapEventReceiver*, bool> m_event_receivers;
299 // Mutex is important because on client map is accessed asynchronously
300 core::map<v2s16, MapSector*> m_sectors;
301 JMutex m_sector_mutex;
303 // Be sure to set this to NULL when the cached sector is deleted
304 MapSector *m_sector_cache;
305 v2s16 m_sector_cache_p;
307 //WrapperHeightmap m_hwrapper;
309 // Queued transforming water nodes
310 UniqueQueue<v3s16> m_transforming_liquid;
316 This is the only map class that is able to generate map.
319 class ServerMap : public Map
323 savedir: directory to which map data should be saved
325 ServerMap(std::string savedir);
330 return MAPTYPE_SERVER;
337 // Returns the position of the chunk where the sector is in
338 v2s16 sector_to_chunk(v2s16 sectorpos)
340 sectorpos.X += m_chunksize / 2;
341 sectorpos.Y += m_chunksize / 2;
342 v2s16 chunkpos = getContainerPos(sectorpos, m_chunksize);
346 // Returns the position of the (0,0) sector of the chunk
347 v2s16 chunk_to_sector(v2s16 chunkpos)
350 chunkpos.X * m_chunksize,
351 chunkpos.Y * m_chunksize
353 sectorpos.X -= m_chunksize / 2;
354 sectorpos.Y -= m_chunksize / 2;
361 MapChunk *getChunk(v2s16 chunkpos)
363 core::map<v2s16, MapChunk*>::Node *n;
364 n = m_chunks.find(chunkpos);
367 return n->getValue();
371 True if the chunk and its neighbors are fully generated.
372 It means the chunk will not be touched in the future by the
373 generator. If false, generateChunk will make it true.
375 bool chunkNonVolatile(v2s16 chunkpos)
377 /*for(s16 x=-1; x<=1; x++)
378 for(s16 y=-1; y<=1; y++)*/
382 v2s16 chunkpos0 = chunkpos + v2s16(x,y);
383 MapChunk *chunk = getChunk(chunkpos);
386 if(chunk->getGenLevel() != GENERATED_FULLY)
395 All chunks touching this one can be altered also.
397 MapChunk* generateChunkRaw(v2s16 chunkpos,
398 core::map<v3s16, MapBlock*> &changed_blocks,
402 Generate a chunk and its neighbors so that it won't be touched
405 MapChunk* generateChunk(v2s16 chunkpos,
406 core::map<v3s16, MapBlock*> &changed_blocks);
411 This is mainly called by generateChunkRaw.
413 //ServerMapSector * generateSector(v2s16 p);
416 Get a sector from somewhere.
418 - Check disk (loads blocks also)
421 ServerMapSector * createSector(v2s16 p);
424 Get a sector from somewhere.
426 - Check disk (loads blocks also)
429 MapSector * emergeSector(v2s16 p,
430 core::map<v3s16, MapBlock*> &changed_blocks);
432 MapSector * emergeSector(v2s16 p)
434 core::map<v3s16, MapBlock*> changed_blocks;
435 return emergeSector(p, changed_blocks);
438 MapBlock * generateBlock(
440 MapBlock *original_dummy,
441 ServerMapSector *sector,
442 core::map<v3s16, MapBlock*> &changed_blocks,
443 core::map<v3s16, MapBlock*> &lighting_invalidated_blocks
447 Get a block from somewhere.
451 MapBlock * createBlock(v3s16 p);
454 only_from_disk, changed_blocks and lighting_invalidated_blocks
455 are not properly used by the new map generator.
457 MapBlock * emergeBlock(
460 core::map<v3s16, MapBlock*> &changed_blocks,
461 core::map<v3s16, MapBlock*> &lighting_invalidated_blocks
466 Forcefully get a block from somewhere.
469 - InvalidPositionException: possible if only_from_disk==true
472 - All already existing blocks that were modified are added.
473 - If found on disk, nothing will be added.
474 - If generated, the new block will not be included.
476 lighting_invalidated_blocks:
477 - All blocks that have heavy-to-calculate lighting changes
479 - updateLighting() should be called for these.
481 - A block that is in changed_blocks may not be in
482 lighting_invalidated_blocks.
484 MapBlock * emergeBlock(
487 core::map<v3s16, MapBlock*> &changed_blocks,
488 core::map<v3s16, MapBlock*> &lighting_invalidated_blocks
492 // Helper for placing objects on ground level
493 s16 findGroundLevel(v2s16 p2d);
496 Misc. helper functions for fiddling with directory and file
499 void createDir(std::string path);
500 void createSaveDir();
501 // returns something like "xxxxxxxx"
502 std::string getSectorSubDir(v2s16 pos);
503 // returns something like "map/sectors/xxxxxxxx"
504 std::string getSectorDir(v2s16 pos);
505 std::string createSectorDir(v2s16 pos);
506 // dirname: final directory name
507 v2s16 getSectorPos(std::string dirname);
508 v3s16 getBlockPos(std::string sectordir, std::string blockfile);
510 void save(bool only_changed);
513 // Saves map seed and possibly other stuff
517 void saveChunkMeta();
518 void loadChunkMeta();
520 // The sector mutex should be locked when calling most of these
522 // This only saves sector-specific data such as the heightmap
524 // DEPRECATED? Sectors have no metadata anymore.
525 void saveSectorMeta(ServerMapSector *sector);
526 MapSector* loadSectorMeta(std::string dirname);
528 // Full load of a sector including all blocks.
529 // returns true on success, false on failure.
530 bool loadSectorFull(v2s16 p2d);
531 // If sector is not found in memory, try to load it from disk.
532 // Returns true if sector now resides in memory
533 //bool deFlushSector(v2s16 p2d);
535 void saveBlock(MapBlock *block);
536 // This will generate a sector with getSector if not found.
537 void loadBlock(std::string sectordir, std::string blockfile, MapSector *sector);
539 // For debug printing
540 virtual void PrintInfo(std::ostream &out);
542 bool isSavingEnabled(){ return m_map_saving_enabled; }
545 // Seed used for all kinds of randomness
548 std::string m_savedir;
549 bool m_map_saving_enabled;
551 // Chunk size in MapSectors
554 core::map<v2s16, MapChunk*> m_chunks;
563 struct MapDrawControl
568 wanted_max_blocks(0),
571 blocks_would_have_drawn(0)
574 // Overrides limits by drawing everything
576 // Wanted drawing range
578 // Maximum number of blocks to draw
579 u32 wanted_max_blocks;
580 // Blocks in this range are drawn regardless of number of blocks drawn
581 float wanted_min_range;
582 // Number of blocks rendered is written here by the renderer
584 // Number of blocks that would have been drawn in wanted_range
585 u32 blocks_would_have_drawn;
593 This is the only map class that is able to render itself on screen.
596 class ClientMap : public Map, public scene::ISceneNode
601 MapDrawControl &control,
602 scene::ISceneNode* parent,
603 scene::ISceneManager* mgr,
611 return MAPTYPE_CLIENT;
619 void updateCamera(v3f pos, v3f dir)
621 JMutexAutoLock lock(m_camera_mutex);
622 m_camera_position = pos;
623 m_camera_direction = dir;
627 Forcefully get a sector from somewhere
629 MapSector * emergeSector(v2s16 p);
631 void deSerializeSector(v2s16 p2d, std::istream &is);
637 virtual void OnRegisterSceneNode();
639 virtual void render()
641 video::IVideoDriver* driver = SceneManager->getVideoDriver();
642 driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
643 renderMap(driver, SceneManager->getSceneNodeRenderPass());
646 virtual const core::aabbox3d<f32>& getBoundingBox() const
651 void renderMap(video::IVideoDriver* driver, s32 pass);
654 Methods for setting temporary modifications to nodes for
657 Returns true if something changed.
659 All blocks whose mesh could have been changed are inserted
662 bool setTempMod(v3s16 p, NodeMod mod,
663 core::map<v3s16, MapBlock*> *affected_blocks=NULL);
664 bool clearTempMod(v3s16 p,
665 core::map<v3s16, MapBlock*> *affected_blocks=NULL);
666 // Efficient implementation needs a cache of TempMods
667 //void clearTempMods();
669 void expireMeshes(bool only_daynight_diffed);
672 Update the faces of the given block and blocks on the
675 void updateMeshes(v3s16 blockpos, u32 daynight_ratio);
677 // Update meshes that touch the node
678 //void updateNodeMeshes(v3s16 nodepos, u32 daynight_ratio);
680 // For debug printing
681 virtual void PrintInfo(std::ostream &out);
686 core::aabbox3d<f32> m_box;
688 // This is the master heightmap mesh
689 //scene::SMesh *mesh;
692 MapDrawControl &m_control;
694 v3f m_camera_position;
695 v3f m_camera_direction;
696 JMutex m_camera_mutex;
702 class MapVoxelManipulator : public VoxelManipulator
705 MapVoxelManipulator(Map *map);
706 virtual ~MapVoxelManipulator();
710 VoxelManipulator::clear();
711 m_loaded_blocks.clear();
714 virtual void emerge(VoxelArea a, s32 caller_id=-1);
716 void blitBack(core::map<v3s16, MapBlock*> & modified_blocks);
722 value = block existed when loaded
724 core::map<v3s16, bool> m_loaded_blocks;
727 class ManualMapVoxelManipulator : public MapVoxelManipulator
730 ManualMapVoxelManipulator(Map *map);
731 virtual ~ManualMapVoxelManipulator();
733 virtual void emerge(VoxelArea a, s32 caller_id=-1);
735 void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max);
737 // This is much faster with big chunks of generated data
738 void blitBackAll(core::map<v3s16, MapBlock*> * modified_blocks);