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 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.
21 #include "mapsector.h"
28 #include "nodemetadata.h"
34 #include "util/directiontables.h"
35 #include "rollback_interface.h"
37 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
40 SQLite format specification:
41 - Initially only replaces sectors/ and sectors2/
43 If map.sqlite does not exist in the save dir
44 or the block was not found in the database
45 the map will try to load from sectors folder.
46 In either case, map.sqlite will be created
47 and all future saves will save there.
49 Structure of map.sqlite:
60 Map::Map(std::ostream &dout, IGameDef *gamedef):
65 /*m_sector_mutex.Init();
66 assert(m_sector_mutex.IsInitialized());*/
74 core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
75 for(; i.atEnd() == false; i++)
77 MapSector *sector = i.getNode()->getValue();
82 void Map::addEventReceiver(MapEventReceiver *event_receiver)
84 m_event_receivers.insert(event_receiver, false);
87 void Map::removeEventReceiver(MapEventReceiver *event_receiver)
89 if(m_event_receivers.find(event_receiver) == NULL)
91 m_event_receivers.remove(event_receiver);
94 void Map::dispatchEvent(MapEditEvent *event)
96 for(core::map<MapEventReceiver*, bool>::Iterator
97 i = m_event_receivers.getIterator();
98 i.atEnd()==false; i++)
100 MapEventReceiver* event_receiver = i.getNode()->getKey();
101 event_receiver->onMapEditEvent(event);
105 MapSector * Map::getSectorNoGenerateNoExNoLock(v2s16 p)
107 if(m_sector_cache != NULL && p == m_sector_cache_p){
108 MapSector * sector = m_sector_cache;
112 core::map<v2s16, MapSector*>::Node *n = m_sectors.find(p);
117 MapSector *sector = n->getValue();
119 // Cache the last result
120 m_sector_cache_p = p;
121 m_sector_cache = sector;
126 MapSector * Map::getSectorNoGenerateNoEx(v2s16 p)
128 return getSectorNoGenerateNoExNoLock(p);
131 MapSector * Map::getSectorNoGenerate(v2s16 p)
133 MapSector *sector = getSectorNoGenerateNoEx(p);
135 throw InvalidPositionException();
140 MapBlock * Map::getBlockNoCreateNoEx(v3s16 p3d)
142 v2s16 p2d(p3d.X, p3d.Z);
143 MapSector * sector = getSectorNoGenerateNoEx(p2d);
146 MapBlock *block = sector->getBlockNoCreateNoEx(p3d.Y);
150 MapBlock * Map::getBlockNoCreate(v3s16 p3d)
152 MapBlock *block = getBlockNoCreateNoEx(p3d);
154 throw InvalidPositionException();
158 bool Map::isNodeUnderground(v3s16 p)
160 v3s16 blockpos = getNodeBlockPos(p);
162 MapBlock * block = getBlockNoCreate(blockpos);
163 return block->getIsUnderground();
165 catch(InvalidPositionException &e)
171 bool Map::isValidPosition(v3s16 p)
173 v3s16 blockpos = getNodeBlockPos(p);
174 MapBlock *block = getBlockNoCreate(blockpos);
175 return (block != NULL);
178 // Returns a CONTENT_IGNORE node if not found
179 MapNode Map::getNodeNoEx(v3s16 p)
181 v3s16 blockpos = getNodeBlockPos(p);
182 MapBlock *block = getBlockNoCreateNoEx(blockpos);
184 return MapNode(CONTENT_IGNORE);
185 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
186 return block->getNodeNoCheck(relpos);
189 // throws InvalidPositionException if not found
190 MapNode Map::getNode(v3s16 p)
192 v3s16 blockpos = getNodeBlockPos(p);
193 MapBlock *block = getBlockNoCreateNoEx(blockpos);
195 throw InvalidPositionException();
196 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
197 return block->getNodeNoCheck(relpos);
200 // throws InvalidPositionException if not found
201 void Map::setNode(v3s16 p, MapNode & n)
203 v3s16 blockpos = getNodeBlockPos(p);
204 MapBlock *block = getBlockNoCreate(blockpos);
205 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
206 // Never allow placing CONTENT_IGNORE, it fucks up stuff
207 if(n.getContent() == CONTENT_IGNORE){
208 errorstream<<"Map::setNode(): Not allowing to place CONTENT_IGNORE"
209 <<" while trying to replace \""
210 <<m_gamedef->ndef()->get(block->getNodeNoCheck(relpos)).name
211 <<"\" at "<<PP(p)<<" (block "<<PP(blockpos)<<")"<<std::endl;
212 debug_stacks_print_to(infostream);
215 block->setNodeNoCheck(relpos, n);
220 Goes recursively through the neighbours of the node.
222 Alters only transparent nodes.
224 If the lighting of the neighbour is lower than the lighting of
225 the node was (before changing it to 0 at the step before), the
226 lighting of the neighbour is set to 0 and then the same stuff
227 repeats for the neighbour.
229 The ending nodes of the routine are stored in light_sources.
230 This is useful when a light is removed. In such case, this
231 routine can be called for the light node and then again for
232 light_sources to re-light the area without the removed light.
234 values of from_nodes are lighting values.
236 void Map::unspreadLight(enum LightBank bank,
237 core::map<v3s16, u8> & from_nodes,
238 core::map<v3s16, bool> & light_sources,
239 core::map<v3s16, MapBlock*> & modified_blocks)
241 INodeDefManager *nodemgr = m_gamedef->ndef();
244 v3s16(0,0,1), // back
246 v3s16(1,0,0), // right
247 v3s16(0,0,-1), // front
248 v3s16(0,-1,0), // bottom
249 v3s16(-1,0,0), // left
252 if(from_nodes.size() == 0)
255 u32 blockchangecount = 0;
257 core::map<v3s16, u8> unlighted_nodes;
258 core::map<v3s16, u8>::Iterator j;
259 j = from_nodes.getIterator();
262 Initialize block cache
265 MapBlock *block = NULL;
266 // Cache this a bit, too
267 bool block_checked_in_modified = false;
269 for(; j.atEnd() == false; j++)
271 v3s16 pos = j.getNode()->getKey();
272 v3s16 blockpos = getNodeBlockPos(pos);
274 // Only fetch a new block if the block position has changed
276 if(block == NULL || blockpos != blockpos_last){
277 block = getBlockNoCreate(blockpos);
278 blockpos_last = blockpos;
280 block_checked_in_modified = false;
284 catch(InvalidPositionException &e)
292 // Calculate relative position in block
293 v3s16 relpos = pos - blockpos_last * MAP_BLOCKSIZE;
295 // Get node straight from the block
296 MapNode n = block->getNode(relpos);
298 u8 oldlight = j.getNode()->getValue();
300 // Loop through 6 neighbors
301 for(u16 i=0; i<6; i++)
303 // Get the position of the neighbor node
304 v3s16 n2pos = pos + dirs[i];
306 // Get the block where the node is located
307 v3s16 blockpos = getNodeBlockPos(n2pos);
311 // Only fetch a new block if the block position has changed
313 if(block == NULL || blockpos != blockpos_last){
314 block = getBlockNoCreate(blockpos);
315 blockpos_last = blockpos;
317 block_checked_in_modified = false;
321 catch(InvalidPositionException &e)
326 // Calculate relative position in block
327 v3s16 relpos = n2pos - blockpos * MAP_BLOCKSIZE;
328 // Get node straight from the block
329 MapNode n2 = block->getNode(relpos);
331 bool changed = false;
333 //TODO: Optimize output by optimizing light_sources?
336 If the neighbor is dimmer than what was specified
337 as oldlight (the light of the previous node)
339 if(n2.getLight(bank, nodemgr) < oldlight)
342 And the neighbor is transparent and it has some light
344 if(nodemgr->get(n2).light_propagates
345 && n2.getLight(bank, nodemgr) != 0)
348 Set light to 0 and add to queue
351 u8 current_light = n2.getLight(bank, nodemgr);
352 n2.setLight(bank, 0, nodemgr);
353 block->setNode(relpos, n2);
355 unlighted_nodes.insert(n2pos, current_light);
359 Remove from light_sources if it is there
360 NOTE: This doesn't happen nearly at all
362 /*if(light_sources.find(n2pos))
364 infostream<<"Removed from light_sources"<<std::endl;
365 light_sources.remove(n2pos);
370 if(light_sources.find(n2pos) != NULL)
371 light_sources.remove(n2pos);*/
374 light_sources.insert(n2pos, true);
377 // Add to modified_blocks
378 if(changed == true && block_checked_in_modified == false)
380 // If the block is not found in modified_blocks, add.
381 if(modified_blocks.find(blockpos) == NULL)
383 modified_blocks.insert(blockpos, block);
385 block_checked_in_modified = true;
388 catch(InvalidPositionException &e)
395 /*infostream<<"unspreadLight(): Changed block "
396 <<blockchangecount<<" times"
397 <<" for "<<from_nodes.size()<<" nodes"
400 if(unlighted_nodes.size() > 0)
401 unspreadLight(bank, unlighted_nodes, light_sources, modified_blocks);
405 A single-node wrapper of the above
407 void Map::unLightNeighbors(enum LightBank bank,
408 v3s16 pos, u8 lightwas,
409 core::map<v3s16, bool> & light_sources,
410 core::map<v3s16, MapBlock*> & modified_blocks)
412 core::map<v3s16, u8> from_nodes;
413 from_nodes.insert(pos, lightwas);
415 unspreadLight(bank, from_nodes, light_sources, modified_blocks);
419 Lights neighbors of from_nodes, collects all them and then
422 void Map::spreadLight(enum LightBank bank,
423 core::map<v3s16, bool> & from_nodes,
424 core::map<v3s16, MapBlock*> & modified_blocks)
426 INodeDefManager *nodemgr = m_gamedef->ndef();
428 const v3s16 dirs[6] = {
429 v3s16(0,0,1), // back
431 v3s16(1,0,0), // right
432 v3s16(0,0,-1), // front
433 v3s16(0,-1,0), // bottom
434 v3s16(-1,0,0), // left
437 if(from_nodes.size() == 0)
440 u32 blockchangecount = 0;
442 core::map<v3s16, bool> lighted_nodes;
443 core::map<v3s16, bool>::Iterator j;
444 j = from_nodes.getIterator();
447 Initialize block cache
450 MapBlock *block = NULL;
451 // Cache this a bit, too
452 bool block_checked_in_modified = false;
454 for(; j.atEnd() == false; j++)
455 //for(; j != from_nodes.end(); j++)
457 v3s16 pos = j.getNode()->getKey();
459 //infostream<<"pos=("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"<<std::endl;
460 v3s16 blockpos = getNodeBlockPos(pos);
462 // Only fetch a new block if the block position has changed
464 if(block == NULL || blockpos != blockpos_last){
465 block = getBlockNoCreate(blockpos);
466 blockpos_last = blockpos;
468 block_checked_in_modified = false;
472 catch(InvalidPositionException &e)
480 // Calculate relative position in block
481 v3s16 relpos = pos - blockpos_last * MAP_BLOCKSIZE;
483 // Get node straight from the block
484 MapNode n = block->getNode(relpos);
486 u8 oldlight = n.getLight(bank, nodemgr);
487 u8 newlight = diminish_light(oldlight);
489 // Loop through 6 neighbors
490 for(u16 i=0; i<6; i++){
491 // Get the position of the neighbor node
492 v3s16 n2pos = pos + dirs[i];
494 // Get the block where the node is located
495 v3s16 blockpos = getNodeBlockPos(n2pos);
499 // Only fetch a new block if the block position has changed
501 if(block == NULL || blockpos != blockpos_last){
502 block = getBlockNoCreate(blockpos);
503 blockpos_last = blockpos;
505 block_checked_in_modified = false;
509 catch(InvalidPositionException &e)
514 // Calculate relative position in block
515 v3s16 relpos = n2pos - blockpos * MAP_BLOCKSIZE;
516 // Get node straight from the block
517 MapNode n2 = block->getNode(relpos);
519 bool changed = false;
521 If the neighbor is brighter than the current node,
522 add to list (it will light up this node on its turn)
524 if(n2.getLight(bank, nodemgr) > undiminish_light(oldlight))
526 lighted_nodes.insert(n2pos, true);
527 //lighted_nodes.push_back(n2pos);
531 If the neighbor is dimmer than how much light this node
532 would spread on it, add to list
534 if(n2.getLight(bank, nodemgr) < newlight)
536 if(nodemgr->get(n2).light_propagates)
538 n2.setLight(bank, newlight, nodemgr);
539 block->setNode(relpos, n2);
540 lighted_nodes.insert(n2pos, true);
541 //lighted_nodes.push_back(n2pos);
546 // Add to modified_blocks
547 if(changed == true && block_checked_in_modified == false)
549 // If the block is not found in modified_blocks, add.
550 if(modified_blocks.find(blockpos) == NULL)
552 modified_blocks.insert(blockpos, block);
554 block_checked_in_modified = true;
557 catch(InvalidPositionException &e)
564 /*infostream<<"spreadLight(): Changed block "
565 <<blockchangecount<<" times"
566 <<" for "<<from_nodes.size()<<" nodes"
569 if(lighted_nodes.size() > 0)
570 spreadLight(bank, lighted_nodes, modified_blocks);
574 A single-node source variation of the above.
576 void Map::lightNeighbors(enum LightBank bank,
578 core::map<v3s16, MapBlock*> & modified_blocks)
580 core::map<v3s16, bool> from_nodes;
581 from_nodes.insert(pos, true);
582 spreadLight(bank, from_nodes, modified_blocks);
585 v3s16 Map::getBrightestNeighbour(enum LightBank bank, v3s16 p)
587 INodeDefManager *nodemgr = m_gamedef->ndef();
590 v3s16(0,0,1), // back
592 v3s16(1,0,0), // right
593 v3s16(0,0,-1), // front
594 v3s16(0,-1,0), // bottom
595 v3s16(-1,0,0), // left
598 u8 brightest_light = 0;
599 v3s16 brightest_pos(0,0,0);
600 bool found_something = false;
602 // Loop through 6 neighbors
603 for(u16 i=0; i<6; i++){
604 // Get the position of the neighbor node
605 v3s16 n2pos = p + dirs[i];
610 catch(InvalidPositionException &e)
614 if(n2.getLight(bank, nodemgr) > brightest_light || found_something == false){
615 brightest_light = n2.getLight(bank, nodemgr);
616 brightest_pos = n2pos;
617 found_something = true;
621 if(found_something == false)
622 throw InvalidPositionException();
624 return brightest_pos;
628 Propagates sunlight down from a node.
629 Starting point gets sunlight.
631 Returns the lowest y value of where the sunlight went.
633 Mud is turned into grass in where the sunlight stops.
635 s16 Map::propagateSunlight(v3s16 start,
636 core::map<v3s16, MapBlock*> & modified_blocks)
638 INodeDefManager *nodemgr = m_gamedef->ndef();
643 v3s16 pos(start.X, y, start.Z);
645 v3s16 blockpos = getNodeBlockPos(pos);
648 block = getBlockNoCreate(blockpos);
650 catch(InvalidPositionException &e)
655 v3s16 relpos = pos - blockpos*MAP_BLOCKSIZE;
656 MapNode n = block->getNode(relpos);
658 if(nodemgr->get(n).sunlight_propagates)
660 n.setLight(LIGHTBANK_DAY, LIGHT_SUN, nodemgr);
661 block->setNode(relpos, n);
663 modified_blocks.insert(blockpos, block);
667 // Sunlight goes no further
674 void Map::updateLighting(enum LightBank bank,
675 core::map<v3s16, MapBlock*> & a_blocks,
676 core::map<v3s16, MapBlock*> & modified_blocks)
678 INodeDefManager *nodemgr = m_gamedef->ndef();
680 /*m_dout<<DTIME<<"Map::updateLighting(): "
681 <<a_blocks.size()<<" blocks."<<std::endl;*/
683 //TimeTaker timer("updateLighting");
687 //u32 count_was = modified_blocks.size();
689 core::map<v3s16, MapBlock*> blocks_to_update;
691 core::map<v3s16, bool> light_sources;
693 core::map<v3s16, u8> unlight_from;
695 int num_bottom_invalid = 0;
698 //TimeTaker t("first stuff");
700 core::map<v3s16, MapBlock*>::Iterator i;
701 i = a_blocks.getIterator();
702 for(; i.atEnd() == false; i++)
704 MapBlock *block = i.getNode()->getValue();
708 // Don't bother with dummy blocks.
712 v3s16 pos = block->getPos();
713 v3s16 posnodes = block->getPosRelative();
714 modified_blocks.insert(pos, block);
716 blocks_to_update.insert(pos, block);
719 Clear all light from block
721 for(s16 z=0; z<MAP_BLOCKSIZE; z++)
722 for(s16 x=0; x<MAP_BLOCKSIZE; x++)
723 for(s16 y=0; y<MAP_BLOCKSIZE; y++)
728 MapNode n = block->getNode(p);
729 u8 oldlight = n.getLight(bank, nodemgr);
730 n.setLight(bank, 0, nodemgr);
731 block->setNode(p, n);
733 // If node sources light, add to list
734 u8 source = nodemgr->get(n).light_source;
736 light_sources[p + posnodes] = true;
738 // Collect borders for unlighting
739 if((x==0 || x == MAP_BLOCKSIZE-1
740 || y==0 || y == MAP_BLOCKSIZE-1
741 || z==0 || z == MAP_BLOCKSIZE-1)
744 v3s16 p_map = p + posnodes;
745 unlight_from.insert(p_map, oldlight);
748 catch(InvalidPositionException &e)
751 This would happen when dealing with a
755 infostream<<"updateLighting(): InvalidPositionException"
760 if(bank == LIGHTBANK_DAY)
762 bool bottom_valid = block->propagateSunlight(light_sources);
765 num_bottom_invalid++;
767 // If bottom is valid, we're done.
771 else if(bank == LIGHTBANK_NIGHT)
773 // For night lighting, sunlight is not propagated
778 // Invalid lighting bank
782 /*infostream<<"Bottom for sunlight-propagated block ("
783 <<pos.X<<","<<pos.Y<<","<<pos.Z<<") not valid"
786 // Bottom sunlight is not valid; get the block and loop to it
790 block = getBlockNoCreate(pos);
792 catch(InvalidPositionException &e)
803 Enable this to disable proper lighting for speeding up map
804 generation for testing or whatever
807 //if(g_settings->get(""))
809 core::map<v3s16, MapBlock*>::Iterator i;
810 i = blocks_to_update.getIterator();
811 for(; i.atEnd() == false; i++)
813 MapBlock *block = i.getNode()->getValue();
814 v3s16 p = block->getPos();
815 block->setLightingExpired(false);
823 //TimeTaker timer("unspreadLight");
824 unspreadLight(bank, unlight_from, light_sources, modified_blocks);
829 u32 diff = modified_blocks.size() - count_was;
830 count_was = modified_blocks.size();
831 infostream<<"unspreadLight modified "<<diff<<std::endl;
835 //TimeTaker timer("spreadLight");
836 spreadLight(bank, light_sources, modified_blocks);
841 u32 diff = modified_blocks.size() - count_was;
842 count_was = modified_blocks.size();
843 infostream<<"spreadLight modified "<<diff<<std::endl;
849 //MapVoxelManipulator vmanip(this);
851 // Make a manual voxel manipulator and load all the blocks
852 // that touch the requested blocks
853 ManualMapVoxelManipulator vmanip(this);
856 //TimeTaker timer("initialEmerge");
858 core::map<v3s16, MapBlock*>::Iterator i;
859 i = blocks_to_update.getIterator();
860 for(; i.atEnd() == false; i++)
862 MapBlock *block = i.getNode()->getValue();
863 v3s16 p = block->getPos();
865 // Add all surrounding blocks
866 vmanip.initialEmerge(p - v3s16(1,1,1), p + v3s16(1,1,1));
869 Add all surrounding blocks that have up-to-date lighting
870 NOTE: This doesn't quite do the job (not everything
871 appropriate is lighted)
873 /*for(s16 z=-1; z<=1; z++)
874 for(s16 y=-1; y<=1; y++)
875 for(s16 x=-1; x<=1; x++)
877 v3s16 p2 = p + v3s16(x,y,z);
878 MapBlock *block = getBlockNoCreateNoEx(p2);
883 if(block->getLightingExpired())
885 vmanip.initialEmerge(p2, p2);
888 // Lighting of block will be updated completely
889 block->setLightingExpired(false);
894 //TimeTaker timer("unSpreadLight");
895 vmanip.unspreadLight(bank, unlight_from, light_sources, nodemgr);
898 //TimeTaker timer("spreadLight");
899 vmanip.spreadLight(bank, light_sources, nodemgr);
902 //TimeTaker timer("blitBack");
903 vmanip.blitBack(modified_blocks);
905 /*infostream<<"emerge_time="<<emerge_time<<std::endl;
910 //m_dout<<"Done ("<<getTimestamp()<<")"<<std::endl;
913 void Map::updateLighting(core::map<v3s16, MapBlock*> & a_blocks,
914 core::map<v3s16, MapBlock*> & modified_blocks)
916 updateLighting(LIGHTBANK_DAY, a_blocks, modified_blocks);
917 updateLighting(LIGHTBANK_NIGHT, a_blocks, modified_blocks);
920 Update information about whether day and night light differ
922 for(core::map<v3s16, MapBlock*>::Iterator
923 i = modified_blocks.getIterator();
924 i.atEnd() == false; i++)
926 MapBlock *block = i.getNode()->getValue();
927 block->expireDayNightDiff();
933 void Map::addNodeAndUpdate(v3s16 p, MapNode n,
934 core::map<v3s16, MapBlock*> &modified_blocks)
936 INodeDefManager *ndef = m_gamedef->ndef();
939 m_dout<<DTIME<<"Map::addNodeAndUpdate(): p=("
940 <<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
943 From this node to nodes underneath:
944 If lighting is sunlight (1.0), unlight neighbours and
949 v3s16 toppos = p + v3s16(0,1,0);
950 v3s16 bottompos = p + v3s16(0,-1,0);
952 bool node_under_sunlight = true;
953 core::map<v3s16, bool> light_sources;
956 Collect old node for rollback
958 RollbackNode rollback_oldnode(this, p, m_gamedef);
961 If there is a node at top and it doesn't have sunlight,
962 there has not been any sunlight going down.
964 Otherwise there probably is.
967 MapNode topnode = getNode(toppos);
969 if(topnode.getLight(LIGHTBANK_DAY, ndef) != LIGHT_SUN)
970 node_under_sunlight = false;
972 catch(InvalidPositionException &e)
977 Remove all light that has come out of this node
980 enum LightBank banks[] =
985 for(s32 i=0; i<2; i++)
987 enum LightBank bank = banks[i];
989 u8 lightwas = getNode(p).getLight(bank, ndef);
991 // Add the block of the added node to modified_blocks
992 v3s16 blockpos = getNodeBlockPos(p);
993 MapBlock * block = getBlockNoCreate(blockpos);
994 assert(block != NULL);
995 modified_blocks.insert(blockpos, block);
997 assert(isValidPosition(p));
999 // Unlight neighbours of node.
1000 // This means setting light of all consequent dimmer nodes
1002 // This also collects the nodes at the border which will spread
1003 // light again into this.
1004 unLightNeighbors(bank, p, lightwas, light_sources, modified_blocks);
1006 n.setLight(bank, 0, ndef);
1010 If node lets sunlight through and is under sunlight, it has
1013 if(node_under_sunlight && ndef->get(n).sunlight_propagates)
1015 n.setLight(LIGHTBANK_DAY, LIGHT_SUN, ndef);
1019 Remove node metadata
1022 removeNodeMetadata(p);
1025 Set the node on the map
1031 If node is under sunlight and doesn't let sunlight through,
1032 take all sunlighted nodes under it and clear light from them
1033 and from where the light has been spread.
1034 TODO: This could be optimized by mass-unlighting instead
1037 if(node_under_sunlight && !ndef->get(n).sunlight_propagates)
1041 //m_dout<<DTIME<<"y="<<y<<std::endl;
1042 v3s16 n2pos(p.X, y, p.Z);
1046 n2 = getNode(n2pos);
1048 catch(InvalidPositionException &e)
1053 if(n2.getLight(LIGHTBANK_DAY, ndef) == LIGHT_SUN)
1055 unLightNeighbors(LIGHTBANK_DAY,
1056 n2pos, n2.getLight(LIGHTBANK_DAY, ndef),
1057 light_sources, modified_blocks);
1058 n2.setLight(LIGHTBANK_DAY, 0, ndef);
1066 for(s32 i=0; i<2; i++)
1068 enum LightBank bank = banks[i];
1071 Spread light from all nodes that might be capable of doing so
1073 spreadLight(bank, light_sources, modified_blocks);
1077 Update information about whether day and night light differ
1079 for(core::map<v3s16, MapBlock*>::Iterator
1080 i = modified_blocks.getIterator();
1081 i.atEnd() == false; i++)
1083 MapBlock *block = i.getNode()->getValue();
1084 block->expireDayNightDiff();
1090 if(m_gamedef->rollback())
1092 RollbackNode rollback_newnode(this, p, m_gamedef);
1093 RollbackAction action;
1094 action.setSetNode(p, rollback_oldnode, rollback_newnode);
1095 m_gamedef->rollback()->reportAction(action);
1099 Add neighboring liquid nodes and the node itself if it is
1100 liquid (=water node was added) to transform queue.
1103 v3s16(0,0,0), // self
1104 v3s16(0,0,1), // back
1105 v3s16(0,1,0), // top
1106 v3s16(1,0,0), // right
1107 v3s16(0,0,-1), // front
1108 v3s16(0,-1,0), // bottom
1109 v3s16(-1,0,0), // left
1111 for(u16 i=0; i<7; i++)
1116 v3s16 p2 = p + dirs[i];
1118 MapNode n2 = getNode(p2);
1119 if(ndef->get(n2).isLiquid() || n2.getContent() == CONTENT_AIR)
1121 m_transforming_liquid.push_back(p2);
1124 }catch(InvalidPositionException &e)
1132 void Map::removeNodeAndUpdate(v3s16 p,
1133 core::map<v3s16, MapBlock*> &modified_blocks)
1135 INodeDefManager *ndef = m_gamedef->ndef();
1137 /*PrintInfo(m_dout);
1138 m_dout<<DTIME<<"Map::removeNodeAndUpdate(): p=("
1139 <<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
1141 bool node_under_sunlight = true;
1143 v3s16 toppos = p + v3s16(0,1,0);
1145 // Node will be replaced with this
1146 content_t replace_material = CONTENT_AIR;
1149 Collect old node for rollback
1151 RollbackNode rollback_oldnode(this, p, m_gamedef);
1154 If there is a node at top and it doesn't have sunlight,
1155 there will be no sunlight going down.
1158 MapNode topnode = getNode(toppos);
1160 if(topnode.getLight(LIGHTBANK_DAY, ndef) != LIGHT_SUN)
1161 node_under_sunlight = false;
1163 catch(InvalidPositionException &e)
1167 core::map<v3s16, bool> light_sources;
1169 enum LightBank banks[] =
1174 for(s32 i=0; i<2; i++)
1176 enum LightBank bank = banks[i];
1179 Unlight neighbors (in case the node is a light source)
1181 unLightNeighbors(bank, p,
1182 getNode(p).getLight(bank, ndef),
1183 light_sources, modified_blocks);
1187 Remove node metadata
1190 removeNodeMetadata(p);
1194 This also clears the lighting.
1198 n.setContent(replace_material);
1201 for(s32 i=0; i<2; i++)
1203 enum LightBank bank = banks[i];
1206 Recalculate lighting
1208 spreadLight(bank, light_sources, modified_blocks);
1211 // Add the block of the removed node to modified_blocks
1212 v3s16 blockpos = getNodeBlockPos(p);
1213 MapBlock * block = getBlockNoCreate(blockpos);
1214 assert(block != NULL);
1215 modified_blocks.insert(blockpos, block);
1218 If the removed node was under sunlight, propagate the
1219 sunlight down from it and then light all neighbors
1220 of the propagated blocks.
1222 if(node_under_sunlight)
1224 s16 ybottom = propagateSunlight(p, modified_blocks);
1225 /*m_dout<<DTIME<<"Node was under sunlight. "
1226 "Propagating sunlight";
1227 m_dout<<DTIME<<" -> ybottom="<<ybottom<<std::endl;*/
1229 for(; y >= ybottom; y--)
1231 v3s16 p2(p.X, y, p.Z);
1232 /*m_dout<<DTIME<<"lighting neighbors of node ("
1233 <<p2.X<<","<<p2.Y<<","<<p2.Z<<")"
1235 lightNeighbors(LIGHTBANK_DAY, p2, modified_blocks);
1240 // Set the lighting of this node to 0
1241 // TODO: Is this needed? Lighting is cleared up there already.
1243 MapNode n = getNode(p);
1244 n.setLight(LIGHTBANK_DAY, 0, ndef);
1247 catch(InvalidPositionException &e)
1253 for(s32 i=0; i<2; i++)
1255 enum LightBank bank = banks[i];
1257 // Get the brightest neighbour node and propagate light from it
1258 v3s16 n2p = getBrightestNeighbour(bank, p);
1260 MapNode n2 = getNode(n2p);
1261 lightNeighbors(bank, n2p, modified_blocks);
1263 catch(InvalidPositionException &e)
1269 Update information about whether day and night light differ
1271 for(core::map<v3s16, MapBlock*>::Iterator
1272 i = modified_blocks.getIterator();
1273 i.atEnd() == false; i++)
1275 MapBlock *block = i.getNode()->getValue();
1276 block->expireDayNightDiff();
1282 if(m_gamedef->rollback())
1284 RollbackNode rollback_newnode(this, p, m_gamedef);
1285 RollbackAction action;
1286 action.setSetNode(p, rollback_oldnode, rollback_newnode);
1287 m_gamedef->rollback()->reportAction(action);
1291 Add neighboring liquid nodes and this node to transform queue.
1292 (it's vital for the node itself to get updated last.)
1295 v3s16(0,0,1), // back
1296 v3s16(0,1,0), // top
1297 v3s16(1,0,0), // right
1298 v3s16(0,0,-1), // front
1299 v3s16(0,-1,0), // bottom
1300 v3s16(-1,0,0), // left
1301 v3s16(0,0,0), // self
1303 for(u16 i=0; i<7; i++)
1308 v3s16 p2 = p + dirs[i];
1310 MapNode n2 = getNode(p2);
1311 if(ndef->get(n2).isLiquid() || n2.getContent() == CONTENT_AIR)
1313 m_transforming_liquid.push_back(p2);
1316 }catch(InvalidPositionException &e)
1322 bool Map::addNodeWithEvent(v3s16 p, MapNode n)
1325 event.type = MEET_ADDNODE;
1329 bool succeeded = true;
1331 core::map<v3s16, MapBlock*> modified_blocks;
1332 addNodeAndUpdate(p, n, modified_blocks);
1334 // Copy modified_blocks to event
1335 for(core::map<v3s16, MapBlock*>::Iterator
1336 i = modified_blocks.getIterator();
1337 i.atEnd()==false; i++)
1339 event.modified_blocks.insert(i.getNode()->getKey(), false);
1342 catch(InvalidPositionException &e){
1346 dispatchEvent(&event);
1351 bool Map::removeNodeWithEvent(v3s16 p)
1354 event.type = MEET_REMOVENODE;
1357 bool succeeded = true;
1359 core::map<v3s16, MapBlock*> modified_blocks;
1360 removeNodeAndUpdate(p, modified_blocks);
1362 // Copy modified_blocks to event
1363 for(core::map<v3s16, MapBlock*>::Iterator
1364 i = modified_blocks.getIterator();
1365 i.atEnd()==false; i++)
1367 event.modified_blocks.insert(i.getNode()->getKey(), false);
1370 catch(InvalidPositionException &e){
1374 dispatchEvent(&event);
1379 bool Map::getDayNightDiff(v3s16 blockpos)
1382 v3s16 p = blockpos + v3s16(0,0,0);
1383 MapBlock *b = getBlockNoCreate(p);
1384 if(b->getDayNightDiff())
1387 catch(InvalidPositionException &e){}
1390 v3s16 p = blockpos + v3s16(-1,0,0);
1391 MapBlock *b = getBlockNoCreate(p);
1392 if(b->getDayNightDiff())
1395 catch(InvalidPositionException &e){}
1397 v3s16 p = blockpos + v3s16(0,-1,0);
1398 MapBlock *b = getBlockNoCreate(p);
1399 if(b->getDayNightDiff())
1402 catch(InvalidPositionException &e){}
1404 v3s16 p = blockpos + v3s16(0,0,-1);
1405 MapBlock *b = getBlockNoCreate(p);
1406 if(b->getDayNightDiff())
1409 catch(InvalidPositionException &e){}
1412 v3s16 p = blockpos + v3s16(1,0,0);
1413 MapBlock *b = getBlockNoCreate(p);
1414 if(b->getDayNightDiff())
1417 catch(InvalidPositionException &e){}
1419 v3s16 p = blockpos + v3s16(0,1,0);
1420 MapBlock *b = getBlockNoCreate(p);
1421 if(b->getDayNightDiff())
1424 catch(InvalidPositionException &e){}
1426 v3s16 p = blockpos + v3s16(0,0,1);
1427 MapBlock *b = getBlockNoCreate(p);
1428 if(b->getDayNightDiff())
1431 catch(InvalidPositionException &e){}
1437 Updates usage timers
1439 void Map::timerUpdate(float dtime, float unload_timeout,
1440 core::list<v3s16> *unloaded_blocks)
1442 bool save_before_unloading = (mapType() == MAPTYPE_SERVER);
1444 // Profile modified reasons
1445 Profiler modprofiler;
1447 core::list<v2s16> sector_deletion_queue;
1448 u32 deleted_blocks_count = 0;
1449 u32 saved_blocks_count = 0;
1450 u32 block_count_all = 0;
1452 core::map<v2s16, MapSector*>::Iterator si;
1455 si = m_sectors.getIterator();
1456 for(; si.atEnd() == false; si++)
1458 MapSector *sector = si.getNode()->getValue();
1460 bool all_blocks_deleted = true;
1462 core::list<MapBlock*> blocks;
1463 sector->getBlocks(blocks);
1465 for(core::list<MapBlock*>::Iterator i = blocks.begin();
1466 i != blocks.end(); i++)
1468 MapBlock *block = (*i);
1470 block->incrementUsageTimer(dtime);
1472 if(block->getUsageTimer() > unload_timeout)
1474 v3s16 p = block->getPos();
1477 if(block->getModified() != MOD_STATE_CLEAN
1478 && save_before_unloading)
1480 modprofiler.add(block->getModifiedReason(), 1);
1482 saved_blocks_count++;
1485 // Delete from memory
1486 sector->deleteBlock(block);
1489 unloaded_blocks->push_back(p);
1491 deleted_blocks_count++;
1495 all_blocks_deleted = false;
1500 if(all_blocks_deleted)
1502 sector_deletion_queue.push_back(si.getNode()->getKey());
1507 // Finally delete the empty sectors
1508 deleteSectors(sector_deletion_queue);
1510 if(deleted_blocks_count != 0)
1512 PrintInfo(infostream); // ServerMap/ClientMap:
1513 infostream<<"Unloaded "<<deleted_blocks_count
1514 <<" blocks from memory";
1515 if(save_before_unloading)
1516 infostream<<", of which "<<saved_blocks_count<<" were written";
1517 infostream<<", "<<block_count_all<<" blocks in memory";
1518 infostream<<"."<<std::endl;
1519 if(saved_blocks_count != 0){
1520 PrintInfo(infostream); // ServerMap/ClientMap:
1521 infostream<<"Blocks modified by: "<<std::endl;
1522 modprofiler.print(infostream);
1527 void Map::deleteSectors(core::list<v2s16> &list)
1529 core::list<v2s16>::Iterator j;
1530 for(j=list.begin(); j!=list.end(); j++)
1532 MapSector *sector = m_sectors[*j];
1533 // If sector is in sector cache, remove it from there
1534 if(m_sector_cache == sector)
1535 m_sector_cache = NULL;
1536 // Remove from map and delete
1537 m_sectors.remove(*j);
1543 void Map::unloadUnusedData(float timeout,
1544 core::list<v3s16> *deleted_blocks)
1546 core::list<v2s16> sector_deletion_queue;
1547 u32 deleted_blocks_count = 0;
1548 u32 saved_blocks_count = 0;
1550 core::map<v2s16, MapSector*>::Iterator si = m_sectors.getIterator();
1551 for(; si.atEnd() == false; si++)
1553 MapSector *sector = si.getNode()->getValue();
1555 bool all_blocks_deleted = true;
1557 core::list<MapBlock*> blocks;
1558 sector->getBlocks(blocks);
1559 for(core::list<MapBlock*>::Iterator i = blocks.begin();
1560 i != blocks.end(); i++)
1562 MapBlock *block = (*i);
1564 if(block->getUsageTimer() > timeout)
1567 if(block->getModified() != MOD_STATE_CLEAN)
1570 saved_blocks_count++;
1572 // Delete from memory
1573 sector->deleteBlock(block);
1574 deleted_blocks_count++;
1578 all_blocks_deleted = false;
1582 if(all_blocks_deleted)
1584 sector_deletion_queue.push_back(si.getNode()->getKey());
1588 deleteSectors(sector_deletion_queue);
1590 infostream<<"Map: Unloaded "<<deleted_blocks_count<<" blocks from memory"
1591 <<", of which "<<saved_blocks_count<<" were wr."
1594 //return sector_deletion_queue.getSize();
1595 //return deleted_blocks_count;
1599 void Map::PrintInfo(std::ostream &out)
1604 #define WATER_DROP_BOOST 4
1608 NEIGHBOR_SAME_LEVEL,
1611 struct NodeNeighbor {
1617 void Map::transformLiquids(core::map<v3s16, MapBlock*> & modified_blocks)
1619 INodeDefManager *nodemgr = m_gamedef->ndef();
1621 DSTACK(__FUNCTION_NAME);
1622 //TimeTaker timer("transformLiquids()");
1625 u32 initial_size = m_transforming_liquid.size();
1627 /*if(initial_size != 0)
1628 infostream<<"transformLiquids(): initial_size="<<initial_size<<std::endl;*/
1630 // list of nodes that due to viscosity have not reached their max level height
1631 UniqueQueue<v3s16> must_reflow;
1633 // List of MapBlocks that will require a lighting update (due to lava)
1634 core::map<v3s16, MapBlock*> lighting_modified_blocks;
1636 while(m_transforming_liquid.size() != 0)
1638 // This should be done here so that it is done when continue is used
1639 if(loopcount >= initial_size || loopcount >= 1000)
1644 Get a queued transforming liquid node
1646 v3s16 p0 = m_transforming_liquid.pop_front();
1648 MapNode n0 = getNodeNoEx(p0);
1651 Collect information about current node
1653 s8 liquid_level = -1;
1654 u8 liquid_kind = CONTENT_IGNORE;
1655 LiquidType liquid_type = nodemgr->get(n0).liquid_type;
1656 switch (liquid_type) {
1658 liquid_level = LIQUID_LEVEL_SOURCE;
1659 liquid_kind = nodemgr->getId(nodemgr->get(n0).liquid_alternative_flowing);
1661 case LIQUID_FLOWING:
1662 liquid_level = (n0.param2 & LIQUID_LEVEL_MASK);
1663 liquid_kind = n0.getContent();
1666 // if this is an air node, it *could* be transformed into a liquid. otherwise,
1667 // continue with the next node.
1668 if (n0.getContent() != CONTENT_AIR)
1670 liquid_kind = CONTENT_AIR;
1675 Collect information about the environment
1677 const v3s16 *dirs = g_6dirs;
1678 NodeNeighbor sources[6]; // surrounding sources
1679 int num_sources = 0;
1680 NodeNeighbor flows[6]; // surrounding flowing liquid nodes
1682 NodeNeighbor airs[6]; // surrounding air
1684 NodeNeighbor neutrals[6]; // nodes that are solid or another kind of liquid
1685 int num_neutrals = 0;
1686 bool flowing_down = false;
1687 for (u16 i = 0; i < 6; i++) {
1688 NeighborType nt = NEIGHBOR_SAME_LEVEL;
1691 nt = NEIGHBOR_UPPER;
1694 nt = NEIGHBOR_LOWER;
1697 v3s16 npos = p0 + dirs[i];
1698 NodeNeighbor nb = {getNodeNoEx(npos), nt, npos};
1699 switch (nodemgr->get(nb.n.getContent()).liquid_type) {
1701 if (nb.n.getContent() == CONTENT_AIR) {
1702 airs[num_airs++] = nb;
1703 // if the current node is a water source the neighbor
1704 // should be enqueded for transformation regardless of whether the
1705 // current node changes or not.
1706 if (nb.t != NEIGHBOR_UPPER && liquid_type != LIQUID_NONE)
1707 m_transforming_liquid.push_back(npos);
1708 // if the current node happens to be a flowing node, it will start to flow down here.
1709 if (nb.t == NEIGHBOR_LOWER) {
1710 flowing_down = true;
1713 neutrals[num_neutrals++] = nb;
1717 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
1718 if (liquid_kind == CONTENT_AIR)
1719 liquid_kind = nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing);
1720 if (nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing) != liquid_kind) {
1721 neutrals[num_neutrals++] = nb;
1723 // Do not count bottom source, it will screw things up
1725 sources[num_sources++] = nb;
1728 case LIQUID_FLOWING:
1729 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
1730 if (liquid_kind == CONTENT_AIR)
1731 liquid_kind = nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing);
1732 if (nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing) != liquid_kind) {
1733 neutrals[num_neutrals++] = nb;
1735 flows[num_flows++] = nb;
1736 if (nb.t == NEIGHBOR_LOWER)
1737 flowing_down = true;
1744 decide on the type (and possibly level) of the current node
1746 content_t new_node_content;
1747 s8 new_node_level = -1;
1748 s8 max_node_level = -1;
1749 if (num_sources >= 2 || liquid_type == LIQUID_SOURCE) {
1750 // liquid_kind will be set to either the flowing alternative of the node (if it's a liquid)
1751 // or the flowing alternative of the first of the surrounding sources (if it's air), so
1752 // it's perfectly safe to use liquid_kind here to determine the new node content.
1753 new_node_content = nodemgr->getId(nodemgr->get(liquid_kind).liquid_alternative_source);
1754 } else if (num_sources == 1 && sources[0].t != NEIGHBOR_LOWER) {
1755 // liquid_kind is set properly, see above
1756 new_node_content = liquid_kind;
1757 max_node_level = new_node_level = LIQUID_LEVEL_MAX;
1759 // no surrounding sources, so get the maximum level that can flow into this node
1760 for (u16 i = 0; i < num_flows; i++) {
1761 u8 nb_liquid_level = (flows[i].n.param2 & LIQUID_LEVEL_MASK);
1762 switch (flows[i].t) {
1763 case NEIGHBOR_UPPER:
1764 if (nb_liquid_level + WATER_DROP_BOOST > max_node_level) {
1765 max_node_level = LIQUID_LEVEL_MAX;
1766 if (nb_liquid_level + WATER_DROP_BOOST < LIQUID_LEVEL_MAX)
1767 max_node_level = nb_liquid_level + WATER_DROP_BOOST;
1768 } else if (nb_liquid_level > max_node_level)
1769 max_node_level = nb_liquid_level;
1771 case NEIGHBOR_LOWER:
1773 case NEIGHBOR_SAME_LEVEL:
1774 if ((flows[i].n.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK &&
1775 nb_liquid_level > 0 && nb_liquid_level - 1 > max_node_level) {
1776 max_node_level = nb_liquid_level - 1;
1782 u8 viscosity = nodemgr->get(liquid_kind).liquid_viscosity;
1783 if (viscosity > 1 && max_node_level != liquid_level) {
1784 // amount to gain, limited by viscosity
1785 // must be at least 1 in absolute value
1786 s8 level_inc = max_node_level - liquid_level;
1787 if (level_inc < -viscosity || level_inc > viscosity)
1788 new_node_level = liquid_level + level_inc/viscosity;
1789 else if (level_inc < 0)
1790 new_node_level = liquid_level - 1;
1791 else if (level_inc > 0)
1792 new_node_level = liquid_level + 1;
1793 if (new_node_level != max_node_level)
1794 must_reflow.push_back(p0);
1796 new_node_level = max_node_level;
1798 if (new_node_level >= 0)
1799 new_node_content = liquid_kind;
1801 new_node_content = CONTENT_AIR;
1806 check if anything has changed. if not, just continue with the next node.
1808 if (new_node_content == n0.getContent() && (nodemgr->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
1809 ((n0.param2 & LIQUID_LEVEL_MASK) == (u8)new_node_level &&
1810 ((n0.param2 & LIQUID_FLOW_DOWN_MASK) == LIQUID_FLOW_DOWN_MASK)
1816 update the current node
1818 //bool flow_down_enabled = (flowing_down && ((n0.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK));
1819 if (nodemgr->get(new_node_content).liquid_type == LIQUID_FLOWING) {
1820 // set level to last 3 bits, flowing down bit to 4th bit
1821 n0.param2 = (flowing_down ? LIQUID_FLOW_DOWN_MASK : 0x00) | (new_node_level & LIQUID_LEVEL_MASK);
1823 // set the liquid level and flow bit to 0
1824 n0.param2 = ~(LIQUID_LEVEL_MASK | LIQUID_FLOW_DOWN_MASK);
1826 n0.setContent(new_node_content);
1828 // Find out whether there is a suspect for this action
1829 std::string suspect;
1830 if(m_gamedef->rollback()){
1831 // Max. 5 seconds ago
1832 suspect = m_gamedef->rollback()->getSuspect(p0, 5);
1835 if(!suspect.empty()){
1837 RollbackScopeActor rollback_scope(m_gamedef->rollback(), suspect, true);
1838 // Get old node for rollback
1839 RollbackNode rollback_oldnode(this, p0, m_gamedef);
1843 RollbackNode rollback_newnode(this, p0, m_gamedef);
1844 RollbackAction action;
1845 action.setSetNode(p0, rollback_oldnode, rollback_newnode);
1846 m_gamedef->rollback()->reportAction(action);
1852 v3s16 blockpos = getNodeBlockPos(p0);
1853 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1855 modified_blocks.insert(blockpos, block);
1856 // If node emits light, MapBlock requires lighting update
1857 if(nodemgr->get(n0).light_source != 0)
1858 lighting_modified_blocks[block->getPos()] = block;
1862 enqueue neighbors for update if neccessary
1864 switch (nodemgr->get(n0.getContent()).liquid_type) {
1866 case LIQUID_FLOWING:
1867 // make sure source flows into all neighboring nodes
1868 for (u16 i = 0; i < num_flows; i++)
1869 if (flows[i].t != NEIGHBOR_UPPER)
1870 m_transforming_liquid.push_back(flows[i].p);
1871 for (u16 i = 0; i < num_airs; i++)
1872 if (airs[i].t != NEIGHBOR_UPPER)
1873 m_transforming_liquid.push_back(airs[i].p);
1876 // this flow has turned to air; neighboring flows might need to do the same
1877 for (u16 i = 0; i < num_flows; i++)
1878 m_transforming_liquid.push_back(flows[i].p);
1882 //infostream<<"Map::transformLiquids(): loopcount="<<loopcount<<std::endl;
1883 while (must_reflow.size() > 0)
1884 m_transforming_liquid.push_back(must_reflow.pop_front());
1885 updateLighting(lighting_modified_blocks, modified_blocks);
1888 NodeMetadata* Map::getNodeMetadata(v3s16 p)
1890 v3s16 blockpos = getNodeBlockPos(p);
1891 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1892 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1894 infostream<<"Map::getNodeMetadata(): Need to emerge "
1895 <<PP(blockpos)<<std::endl;
1896 block = emergeBlock(blockpos, false);
1900 infostream<<"WARNING: Map::getNodeMetadata(): Block not found"
1904 NodeMetadata *meta = block->m_node_metadata.get(p_rel);
1908 void Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
1910 v3s16 blockpos = getNodeBlockPos(p);
1911 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1912 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1914 infostream<<"Map::setNodeMetadata(): Need to emerge "
1915 <<PP(blockpos)<<std::endl;
1916 block = emergeBlock(blockpos, false);
1920 infostream<<"WARNING: Map::setNodeMetadata(): Block not found"
1924 block->m_node_metadata.set(p_rel, meta);
1927 void Map::removeNodeMetadata(v3s16 p)
1929 v3s16 blockpos = getNodeBlockPos(p);
1930 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1931 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1934 infostream<<"WARNING: Map::removeNodeMetadata(): Block not found"
1938 block->m_node_metadata.remove(p_rel);
1941 NodeTimer Map::getNodeTimer(v3s16 p)
1943 v3s16 blockpos = getNodeBlockPos(p);
1944 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1945 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1947 infostream<<"Map::getNodeTimer(): Need to emerge "
1948 <<PP(blockpos)<<std::endl;
1949 block = emergeBlock(blockpos, false);
1953 infostream<<"WARNING: Map::getNodeTimer(): Block not found"
1957 NodeTimer t = block->m_node_timers.get(p_rel);
1961 void Map::setNodeTimer(v3s16 p, NodeTimer t)
1963 v3s16 blockpos = getNodeBlockPos(p);
1964 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1965 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1967 infostream<<"Map::setNodeTimer(): Need to emerge "
1968 <<PP(blockpos)<<std::endl;
1969 block = emergeBlock(blockpos, false);
1973 infostream<<"WARNING: Map::setNodeTimer(): Block not found"
1977 block->m_node_timers.set(p_rel, t);
1980 void Map::removeNodeTimer(v3s16 p)
1982 v3s16 blockpos = getNodeBlockPos(p);
1983 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1984 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1987 infostream<<"WARNING: Map::removeNodeTimer(): Block not found"
1991 block->m_node_timers.remove(p_rel);
1998 ServerMap::ServerMap(std::string savedir, IGameDef *gamedef):
1999 Map(dout_server, gamedef),
2001 m_map_metadata_changed(true),
2003 m_database_read(NULL),
2004 m_database_write(NULL)
2006 verbosestream<<__FUNCTION_NAME<<std::endl;
2008 //m_chunksize = 8; // Takes a few seconds
2010 if (g_settings->get("fixed_map_seed").empty())
2012 m_seed = (((u64)(myrand()%0xffff)<<0)
2013 + ((u64)(myrand()%0xffff)<<16)
2014 + ((u64)(myrand()%0xffff)<<32)
2015 + ((u64)(myrand()%0xffff)<<48));
2019 m_seed = g_settings->getU64("fixed_map_seed");
2023 Experimental and debug stuff
2030 Try to load map; if not found, create a new one.
2033 m_savedir = savedir;
2034 m_map_saving_enabled = false;
2038 // If directory exists, check contents and load if possible
2039 if(fs::PathExists(m_savedir))
2041 // If directory is empty, it is safe to save into it.
2042 if(fs::GetDirListing(m_savedir).size() == 0)
2044 infostream<<"ServerMap: Empty save directory is valid."
2046 m_map_saving_enabled = true;
2051 // Load map metadata (seed, chunksize)
2054 catch(FileNotGoodException &e){
2055 infostream<<"WARNING: Could not load map metadata"
2056 //<<" Disabling chunk-based generator."
2061 infostream<<"ServerMap: Successfully loaded map "
2062 <<"metadata from "<<savedir
2063 <<", assuming valid save directory."
2064 <<" seed="<<m_seed<<"."
2067 m_map_saving_enabled = true;
2068 // Map loaded, not creating new one
2072 // If directory doesn't exist, it is safe to save to it
2074 m_map_saving_enabled = true;
2077 catch(std::exception &e)
2079 infostream<<"WARNING: ServerMap: Failed to load map from "<<savedir
2080 <<", exception: "<<e.what()<<std::endl;
2081 infostream<<"Please remove the map or fix it."<<std::endl;
2082 infostream<<"WARNING: Map saving will be disabled."<<std::endl;
2085 infostream<<"Initializing new map."<<std::endl;
2087 // Create zero sector
2088 emergeSector(v2s16(0,0));
2090 // Initially write whole map
2091 save(MOD_STATE_CLEAN);
2094 ServerMap::~ServerMap()
2096 verbosestream<<__FUNCTION_NAME<<std::endl;
2100 if(m_map_saving_enabled)
2102 // Save only changed parts
2103 save(MOD_STATE_WRITE_AT_UNLOAD);
2104 infostream<<"ServerMap: Saved map to "<<m_savedir<<std::endl;
2108 infostream<<"ServerMap: Map not saved"<<std::endl;
2111 catch(std::exception &e)
2113 infostream<<"ServerMap: Failed to save map to "<<m_savedir
2114 <<", exception: "<<e.what()<<std::endl;
2118 Close database if it was opened
2121 sqlite3_finalize(m_database_read);
2122 if(m_database_write)
2123 sqlite3_finalize(m_database_write);
2125 sqlite3_close(m_database);
2131 core::map<v2s16, MapChunk*>::Iterator i = m_chunks.getIterator();
2132 for(; i.atEnd() == false; i++)
2134 MapChunk *chunk = i.getNode()->getValue();
2140 void ServerMap::initBlockMake(mapgen::BlockMakeData *data, v3s16 blockpos)
2142 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2143 if(enable_mapgen_debug_info)
2144 infostream<<"initBlockMake(): "
2145 <<"("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<") - "
2146 <<"("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<")"
2149 //s16 chunksize = 3;
2150 //v3s16 chunk_offset(-1,-1,-1);
2151 //s16 chunksize = 4;
2152 //v3s16 chunk_offset(-1,-1,-1);
2154 v3s16 chunk_offset(-2,-2,-2);
2155 v3s16 blockpos_div = getContainerPos(blockpos - chunk_offset, chunksize);
2156 v3s16 blockpos_min = blockpos_div * chunksize;
2157 v3s16 blockpos_max = blockpos_div * chunksize + v3s16(1,1,1)*(chunksize-1);
2158 blockpos_min += chunk_offset;
2159 blockpos_max += chunk_offset;
2161 //v3s16 extra_borders(1,1,1);
2162 v3s16 extra_borders(1,1,1);
2164 // Do nothing if not inside limits (+-1 because of neighbors)
2165 if(blockpos_over_limit(blockpos_min - extra_borders) ||
2166 blockpos_over_limit(blockpos_max + extra_borders))
2172 data->no_op = false;
2173 data->seed = m_seed;
2174 data->blockpos_min = blockpos_min;
2175 data->blockpos_max = blockpos_max;
2176 data->blockpos_requested = blockpos;
2177 data->nodedef = m_gamedef->ndef();
2180 Create the whole area of this and the neighboring blocks
2183 //TimeTaker timer("initBlockMake() create area");
2185 for(s16 x=blockpos_min.X-extra_borders.X;
2186 x<=blockpos_max.X+extra_borders.X; x++)
2187 for(s16 z=blockpos_min.Z-extra_borders.Z;
2188 z<=blockpos_max.Z+extra_borders.Z; z++)
2190 v2s16 sectorpos(x, z);
2191 // Sector metadata is loaded from disk if not already loaded.
2192 ServerMapSector *sector = createSector(sectorpos);
2195 for(s16 y=blockpos_min.Y-extra_borders.Y;
2196 y<=blockpos_max.Y+extra_borders.Y; y++)
2199 //MapBlock *block = createBlock(p);
2200 // 1) get from memory, 2) load from disk
2201 MapBlock *block = emergeBlock(p, false);
2202 // 3) create a blank one
2205 block = createBlock(p);
2208 Block gets sunlight if this is true.
2210 Refer to the map generator heuristics.
2212 bool ug = mapgen::block_is_underground(data->seed, p);
2213 block->setIsUnderground(ug);
2216 // Lighting will not be valid after make_chunk is called
2217 block->setLightingExpired(true);
2218 // Lighting will be calculated
2219 //block->setLightingExpired(false);
2225 Now we have a big empty area.
2227 Make a ManualMapVoxelManipulator that contains this and the
2231 // The area that contains this block and it's neighbors
2232 v3s16 bigarea_blocks_min = blockpos_min - extra_borders;
2233 v3s16 bigarea_blocks_max = blockpos_max + extra_borders;
2235 data->vmanip = new ManualMapVoxelManipulator(this);
2236 //data->vmanip->setMap(this);
2240 //TimeTaker timer("initBlockMake() initialEmerge");
2241 data->vmanip->initialEmerge(bigarea_blocks_min, bigarea_blocks_max);
2244 // Data is ready now.
2247 MapBlock* ServerMap::finishBlockMake(mapgen::BlockMakeData *data,
2248 core::map<v3s16, MapBlock*> &changed_blocks)
2250 v3s16 blockpos_min = data->blockpos_min;
2251 v3s16 blockpos_max = data->blockpos_max;
2252 v3s16 blockpos_requested = data->blockpos_requested;
2253 /*infostream<<"finishBlockMake(): ("<<blockpos_requested.X<<","
2254 <<blockpos_requested.Y<<","
2255 <<blockpos_requested.Z<<")"<<std::endl;*/
2257 v3s16 extra_borders(1,1,1);
2261 //infostream<<"finishBlockMake(): no-op"<<std::endl;
2265 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2267 /*infostream<<"Resulting vmanip:"<<std::endl;
2268 data->vmanip.print(infostream);*/
2270 // Make sure affected blocks are loaded
2271 for(s16 x=blockpos_min.X-extra_borders.X;
2272 x<=blockpos_max.X+extra_borders.X; x++)
2273 for(s16 z=blockpos_min.Z-extra_borders.Z;
2274 z<=blockpos_max.Z+extra_borders.Z; z++)
2275 for(s16 y=blockpos_min.Y-extra_borders.Y;
2276 y<=blockpos_max.Y+extra_borders.Y; y++)
2279 // Load from disk if not already in memory
2280 emergeBlock(p, false);
2284 Blit generated stuff to map
2285 NOTE: blitBackAll adds nearly everything to changed_blocks
2289 //TimeTaker timer("finishBlockMake() blitBackAll");
2290 data->vmanip->blitBackAll(&changed_blocks);
2293 if(enable_mapgen_debug_info)
2294 infostream<<"finishBlockMake: changed_blocks.size()="
2295 <<changed_blocks.size()<<std::endl;
2298 Copy transforming liquid information
2300 while(data->transforming_liquid.size() > 0)
2302 v3s16 p = data->transforming_liquid.pop_front();
2303 m_transforming_liquid.push_back(p);
2307 Do stuff in central blocks
2315 TimeTaker t("finishBlockMake lighting update");
2317 core::map<v3s16, MapBlock*> lighting_update_blocks;
2320 for(s16 x=blockpos_min.X-extra_borders.X;
2321 x<=blockpos_max.X+extra_borders.X; x++)
2322 for(s16 z=blockpos_min.Z-extra_borders.Z;
2323 z<=blockpos_max.Z+extra_borders.Z; z++)
2324 for(s16 y=blockpos_min.Y-extra_borders.Y;
2325 y<=blockpos_max.Y+extra_borders.Y; y++)
2328 MapBlock *block = getBlockNoCreateNoEx(p);
2330 lighting_update_blocks.insert(block->getPos(), block);
2333 updateLighting(lighting_update_blocks, changed_blocks);
2337 Set lighting to non-expired state in all of them.
2338 This is cheating, but it is not fast enough if all of them
2339 would actually be updated.
2341 for(s16 x=blockpos_min.X-extra_borders.X;
2342 x<=blockpos_max.X+extra_borders.X; x++)
2343 for(s16 z=blockpos_min.Z-extra_borders.Z;
2344 z<=blockpos_max.Z+extra_borders.Z; z++)
2345 for(s16 y=blockpos_min.Y-extra_borders.Y;
2346 y<=blockpos_max.Y+extra_borders.Y; y++)
2349 getBlockNoCreateNoEx(p)->setLightingExpired(false);
2353 if(enable_mapgen_debug_info == false)
2354 t.stop(true); // Hide output
2359 Go through changed blocks
2361 for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
2362 i.atEnd() == false; i++)
2364 MapBlock *block = i.getNode()->getValue();
2367 Update day/night difference cache of the MapBlocks
2369 block->expireDayNightDiff();
2371 Set block as modified
2373 block->raiseModified(MOD_STATE_WRITE_NEEDED,
2374 "finishBlockMake expireDayNightDiff");
2378 Set central blocks as generated
2380 for(s16 x=blockpos_min.X; x<=blockpos_max.X; x++)
2381 for(s16 z=blockpos_min.Z; z<=blockpos_max.Z; z++)
2382 for(s16 y=blockpos_min.Y; y<=blockpos_max.Y; y++)
2385 MapBlock *block = getBlockNoCreateNoEx(p);
2387 block->setGenerated(true);
2391 Save changed parts of map
2392 NOTE: Will be saved later.
2394 //save(MOD_STATE_WRITE_AT_UNLOAD);
2396 /*infostream<<"finishBlockMake() done for ("<<blockpos_requested.X
2397 <<","<<blockpos_requested.Y<<","
2398 <<blockpos_requested.Z<<")"<<std::endl;*/
2400 if(enable_mapgen_debug_info)
2403 Analyze resulting blocks
2405 /*for(s16 x=blockpos_min.X-1; x<=blockpos_max.X+1; x++)
2406 for(s16 z=blockpos_min.Z-1; z<=blockpos_max.Z+1; z++)
2407 for(s16 y=blockpos_min.Y-1; y<=blockpos_max.Y+1; y++)*/
2408 for(s16 x=blockpos_min.X-0; x<=blockpos_max.X+0; x++)
2409 for(s16 z=blockpos_min.Z-0; z<=blockpos_max.Z+0; z++)
2410 for(s16 y=blockpos_min.Y-0; y<=blockpos_max.Y+0; y++)
2412 v3s16 p = v3s16(x,y,z);
2413 MapBlock *block = getBlockNoCreateNoEx(p);
2415 snprintf(spos, 20, "(%2d,%2d,%2d)", x, y, z);
2416 infostream<<"Generated "<<spos<<": "
2417 <<analyze_block(block)<<std::endl;
2422 MapBlock *block = getBlockNoCreateNoEx(blockpos_requested);
2428 ServerMapSector * ServerMap::createSector(v2s16 p2d)
2430 DSTACKF("%s: p2d=(%d,%d)",
2435 Check if it exists already in memory
2437 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
2442 Try to load it from disk (with blocks)
2444 //if(loadSectorFull(p2d) == true)
2447 Try to load metadata from disk
2450 if(loadSectorMeta(p2d) == true)
2452 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
2455 infostream<<"ServerMap::createSector(): loadSectorFull didn't make a sector"<<std::endl;
2456 throw InvalidPositionException("");
2462 Do not create over-limit
2464 if(p2d.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2465 || p2d.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2466 || p2d.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2467 || p2d.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
2468 throw InvalidPositionException("createSector(): pos. over limit");
2471 Generate blank sector
2474 sector = new ServerMapSector(this, p2d, m_gamedef);
2476 // Sector position on map in nodes
2477 v2s16 nodepos2d = p2d * MAP_BLOCKSIZE;
2482 m_sectors.insert(p2d, sector);
2488 This is a quick-hand function for calling makeBlock().
2490 MapBlock * ServerMap::generateBlock(
2492 core::map<v3s16, MapBlock*> &modified_blocks
2495 DSTACKF("%s: p=(%d,%d,%d)", __FUNCTION_NAME, p.X, p.Y, p.Z);
2497 /*infostream<<"generateBlock(): "
2498 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
2501 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2503 TimeTaker timer("generateBlock");
2505 //MapBlock *block = original_dummy;
2507 v2s16 p2d(p.X, p.Z);
2508 v2s16 p2d_nodes = p2d * MAP_BLOCKSIZE;
2511 Do not generate over-limit
2513 if(blockpos_over_limit(p))
2515 infostream<<__FUNCTION_NAME<<": Block position over limit"<<std::endl;
2516 throw InvalidPositionException("generateBlock(): pos. over limit");
2520 Create block make data
2522 mapgen::BlockMakeData data;
2523 initBlockMake(&data, p);
2529 TimeTaker t("mapgen::make_block()");
2530 mapgen::make_block(&data);
2532 if(enable_mapgen_debug_info == false)
2533 t.stop(true); // Hide output
2537 Blit data back on map, update lighting, add mobs and whatever this does
2539 finishBlockMake(&data, modified_blocks);
2544 MapBlock *block = getBlockNoCreateNoEx(p);
2552 bool erroneus_content = false;
2553 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
2554 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
2555 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
2558 MapNode n = block->getNode(p);
2559 if(n.getContent() == CONTENT_IGNORE)
2561 infostream<<"CONTENT_IGNORE at "
2562 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
2564 erroneus_content = true;
2568 if(erroneus_content)
2577 Generate a completely empty block
2581 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
2582 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
2584 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
2587 n.setContent(CONTENT_AIR);
2588 block->setNode(v3s16(x0,y0,z0), n);
2594 if(enable_mapgen_debug_info == false)
2595 timer.stop(true); // Hide output
2600 MapBlock * ServerMap::createBlock(v3s16 p)
2602 DSTACKF("%s: p=(%d,%d,%d)",
2603 __FUNCTION_NAME, p.X, p.Y, p.Z);
2606 Do not create over-limit
2608 if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2609 || p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2610 || p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2611 || p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2612 || p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2613 || p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
2614 throw InvalidPositionException("createBlock(): pos. over limit");
2616 v2s16 p2d(p.X, p.Z);
2619 This will create or load a sector if not found in memory.
2620 If block exists on disk, it will be loaded.
2622 NOTE: On old save formats, this will be slow, as it generates
2623 lighting on blocks for them.
2625 ServerMapSector *sector;
2627 sector = (ServerMapSector*)createSector(p2d);
2628 assert(sector->getId() == MAPSECTOR_SERVER);
2630 catch(InvalidPositionException &e)
2632 infostream<<"createBlock: createSector() failed"<<std::endl;
2636 NOTE: This should not be done, or at least the exception
2637 should not be passed on as std::exception, because it
2638 won't be catched at all.
2640 /*catch(std::exception &e)
2642 infostream<<"createBlock: createSector() failed: "
2643 <<e.what()<<std::endl;
2648 Try to get a block from the sector
2651 MapBlock *block = sector->getBlockNoCreateNoEx(block_y);
2654 if(block->isDummy())
2659 block = sector->createBlankBlock(block_y);
2663 MapBlock * ServerMap::emergeBlock(v3s16 p, bool allow_generate)
2665 DSTACKF("%s: p=(%d,%d,%d), allow_generate=%d",
2667 p.X, p.Y, p.Z, allow_generate);
2670 MapBlock *block = getBlockNoCreateNoEx(p);
2671 if(block && block->isDummy() == false)
2676 MapBlock *block = loadBlock(p);
2683 core::map<v3s16, MapBlock*> modified_blocks;
2684 MapBlock *block = generateBlock(p, modified_blocks);
2688 event.type = MEET_OTHER;
2691 // Copy modified_blocks to event
2692 for(core::map<v3s16, MapBlock*>::Iterator
2693 i = modified_blocks.getIterator();
2694 i.atEnd()==false; i++)
2696 event.modified_blocks.insert(i.getNode()->getKey(), false);
2700 dispatchEvent(&event);
2709 s16 ServerMap::findGroundLevel(v2s16 p2d)
2713 Uh, just do something random...
2715 // Find existing map from top to down
2718 v3s16 p(p2d.X, max, p2d.Y);
2719 for(; p.Y>min; p.Y--)
2721 MapNode n = getNodeNoEx(p);
2722 if(n.getContent() != CONTENT_IGNORE)
2727 // If this node is not air, go to plan b
2728 if(getNodeNoEx(p).getContent() != CONTENT_AIR)
2730 // Search existing walkable and return it
2731 for(; p.Y>min; p.Y--)
2733 MapNode n = getNodeNoEx(p);
2734 if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
2743 Determine from map generator noise functions
2746 s16 level = mapgen::find_ground_level_from_noise(m_seed, p2d, 1);
2749 //double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
2750 //return (s16)level;
2753 void ServerMap::createDatabase() {
2756 e = sqlite3_exec(m_database,
2757 "CREATE TABLE IF NOT EXISTS `blocks` ("
2758 "`pos` INT NOT NULL PRIMARY KEY,"
2761 , NULL, NULL, NULL);
2762 if(e == SQLITE_ABORT)
2763 throw FileNotGoodException("Could not create database structure");
2765 infostream<<"ServerMap: Database structure was created";
2768 void ServerMap::verifyDatabase() {
2773 std::string dbp = m_savedir + DIR_DELIM + "map.sqlite";
2774 bool needs_create = false;
2778 Open the database connection
2781 createDirs(m_savedir);
2783 if(!fs::PathExists(dbp))
2784 needs_create = true;
2786 d = sqlite3_open_v2(dbp.c_str(), &m_database, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
2787 if(d != SQLITE_OK) {
2788 infostream<<"WARNING: Database failed to open: "<<sqlite3_errmsg(m_database)<<std::endl;
2789 throw FileNotGoodException("Cannot open database file");
2795 d = sqlite3_prepare(m_database, "SELECT `data` FROM `blocks` WHERE `pos`=? LIMIT 1", -1, &m_database_read, NULL);
2796 if(d != SQLITE_OK) {
2797 infostream<<"WARNING: Database read statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2798 throw FileNotGoodException("Cannot prepare read statement");
2801 d = sqlite3_prepare(m_database, "REPLACE INTO `blocks` VALUES(?, ?)", -1, &m_database_write, NULL);
2802 if(d != SQLITE_OK) {
2803 infostream<<"WARNING: Database write statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2804 throw FileNotGoodException("Cannot prepare write statement");
2807 d = sqlite3_prepare(m_database, "SELECT `pos` FROM `blocks`", -1, &m_database_list, NULL);
2808 if(d != SQLITE_OK) {
2809 infostream<<"WARNING: Database list statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2810 throw FileNotGoodException("Cannot prepare read statement");
2813 infostream<<"ServerMap: Database opened"<<std::endl;
2817 bool ServerMap::loadFromFolders() {
2818 if(!m_database && !fs::PathExists(m_savedir + DIR_DELIM + "map.sqlite"))
2823 sqlite3_int64 ServerMap::getBlockAsInteger(const v3s16 pos) {
2824 return (sqlite3_int64)pos.Z*16777216 +
2825 (sqlite3_int64)pos.Y*4096 + (sqlite3_int64)pos.X;
2828 void ServerMap::createDirs(std::string path)
2830 if(fs::CreateAllDirs(path) == false)
2832 m_dout<<DTIME<<"ServerMap: Failed to create directory "
2833 <<"\""<<path<<"\""<<std::endl;
2834 throw BaseException("ServerMap failed to create directory");
2838 std::string ServerMap::getSectorDir(v2s16 pos, int layout)
2844 snprintf(cc, 9, "%.4x%.4x",
2845 (unsigned int)pos.X&0xffff,
2846 (unsigned int)pos.Y&0xffff);
2848 return m_savedir + DIR_DELIM + "sectors" + DIR_DELIM + cc;
2850 snprintf(cc, 9, "%.3x" DIR_DELIM "%.3x",
2851 (unsigned int)pos.X&0xfff,
2852 (unsigned int)pos.Y&0xfff);
2854 return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
2860 v2s16 ServerMap::getSectorPos(std::string dirname)
2864 size_t spos = dirname.rfind(DIR_DELIM_C) + 1;
2865 assert(spos != std::string::npos);
2866 if(dirname.size() - spos == 8)
2869 r = sscanf(dirname.substr(spos).c_str(), "%4x%4x", &x, &y);
2871 else if(dirname.size() - spos == 3)
2874 r = sscanf(dirname.substr(spos-4).c_str(), "%3x" DIR_DELIM "%3x", &x, &y);
2875 // Sign-extend the 12 bit values up to 16 bits...
2876 if(x&0x800) x|=0xF000;
2877 if(y&0x800) y|=0xF000;
2884 v2s16 pos((s16)x, (s16)y);
2888 v3s16 ServerMap::getBlockPos(std::string sectordir, std::string blockfile)
2890 v2s16 p2d = getSectorPos(sectordir);
2892 if(blockfile.size() != 4){
2893 throw InvalidFilenameException("Invalid block filename");
2896 int r = sscanf(blockfile.c_str(), "%4x", &y);
2898 throw InvalidFilenameException("Invalid block filename");
2899 return v3s16(p2d.X, y, p2d.Y);
2902 std::string ServerMap::getBlockFilename(v3s16 p)
2905 snprintf(cc, 5, "%.4x", (unsigned int)p.Y&0xffff);
2909 void ServerMap::save(ModifiedState save_level)
2911 DSTACK(__FUNCTION_NAME);
2912 if(m_map_saving_enabled == false)
2914 infostream<<"WARNING: Not saving map, saving disabled."<<std::endl;
2918 if(save_level == MOD_STATE_CLEAN)
2919 infostream<<"ServerMap: Saving whole map, this can take time."
2922 if(m_map_metadata_changed || save_level == MOD_STATE_CLEAN)
2927 // Profile modified reasons
2928 Profiler modprofiler;
2930 u32 sector_meta_count = 0;
2931 u32 block_count = 0;
2932 u32 block_count_all = 0; // Number of blocks in memory
2934 // Don't do anything with sqlite unless something is really saved
2935 bool save_started = false;
2937 core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
2938 for(; i.atEnd() == false; i++)
2940 ServerMapSector *sector = (ServerMapSector*)i.getNode()->getValue();
2941 assert(sector->getId() == MAPSECTOR_SERVER);
2943 if(sector->differs_from_disk || save_level == MOD_STATE_CLEAN)
2945 saveSectorMeta(sector);
2946 sector_meta_count++;
2948 core::list<MapBlock*> blocks;
2949 sector->getBlocks(blocks);
2950 core::list<MapBlock*>::Iterator j;
2952 for(j=blocks.begin(); j!=blocks.end(); j++)
2954 MapBlock *block = *j;
2958 if(block->getModified() >= save_level)
2963 save_started = true;
2966 modprofiler.add(block->getModifiedReason(), 1);
2971 /*infostream<<"ServerMap: Written block ("
2972 <<block->getPos().X<<","
2973 <<block->getPos().Y<<","
2974 <<block->getPos().Z<<")"
2983 Only print if something happened or saved whole map
2985 if(save_level == MOD_STATE_CLEAN || sector_meta_count != 0
2986 || block_count != 0)
2988 infostream<<"ServerMap: Written: "
2989 <<sector_meta_count<<" sector metadata files, "
2990 <<block_count<<" block files"
2991 <<", "<<block_count_all<<" blocks in memory."
2993 PrintInfo(infostream); // ServerMap/ClientMap:
2994 infostream<<"Blocks modified by: "<<std::endl;
2995 modprofiler.print(infostream);
2999 static s32 unsignedToSigned(s32 i, s32 max_positive)
3001 if(i < max_positive)
3004 return i - 2*max_positive;
3007 // modulo of a negative number does not work consistently in C
3008 static sqlite3_int64 pythonmodulo(sqlite3_int64 i, sqlite3_int64 mod)
3012 return mod - ((-i) % mod);
3015 v3s16 ServerMap::getIntegerAsBlock(sqlite3_int64 i)
3017 s32 x = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3019 s32 y = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3021 s32 z = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3022 return v3s16(x,y,z);
3025 void ServerMap::listAllLoadableBlocks(core::list<v3s16> &dst)
3027 if(loadFromFolders()){
3028 errorstream<<"Map::listAllLoadableBlocks(): Result will be missing "
3029 <<"all blocks that are stored in flat files"<<std::endl;
3035 while(sqlite3_step(m_database_list) == SQLITE_ROW)
3037 sqlite3_int64 block_i = sqlite3_column_int64(m_database_list, 0);
3038 v3s16 p = getIntegerAsBlock(block_i);
3039 //dstream<<"block_i="<<block_i<<" p="<<PP(p)<<std::endl;
3045 void ServerMap::saveMapMeta()
3047 DSTACK(__FUNCTION_NAME);
3049 /*infostream<<"ServerMap::saveMapMeta(): "
3053 createDirs(m_savedir);
3055 std::string fullpath = m_savedir + DIR_DELIM + "map_meta.txt";
3056 std::ofstream os(fullpath.c_str(), std::ios_base::binary);
3057 if(os.good() == false)
3059 infostream<<"ERROR: ServerMap::saveMapMeta(): "
3060 <<"could not open"<<fullpath<<std::endl;
3061 throw FileNotGoodException("Cannot open chunk metadata");
3065 params.setU64("seed", m_seed);
3067 params.writeLines(os);
3069 os<<"[end_of_params]\n";
3071 m_map_metadata_changed = false;
3074 void ServerMap::loadMapMeta()
3076 DSTACK(__FUNCTION_NAME);
3078 /*infostream<<"ServerMap::loadMapMeta(): Loading map metadata"
3081 std::string fullpath = m_savedir + DIR_DELIM + "map_meta.txt";
3082 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3083 if(is.good() == false)
3085 infostream<<"ERROR: ServerMap::loadMapMeta(): "
3086 <<"could not open"<<fullpath<<std::endl;
3087 throw FileNotGoodException("Cannot open map metadata");
3095 throw SerializationError
3096 ("ServerMap::loadMapMeta(): [end_of_params] not found");
3098 std::getline(is, line);
3099 std::string trimmedline = trim(line);
3100 if(trimmedline == "[end_of_params]")
3102 params.parseConfigLine(line);
3105 m_seed = params.getU64("seed");
3107 verbosestream<<"ServerMap::loadMapMeta(): "<<"seed="<<m_seed<<std::endl;
3110 void ServerMap::saveSectorMeta(ServerMapSector *sector)
3112 DSTACK(__FUNCTION_NAME);
3113 // Format used for writing
3114 u8 version = SER_FMT_VER_HIGHEST;
3116 v2s16 pos = sector->getPos();
3117 std::string dir = getSectorDir(pos);
3120 std::string fullpath = dir + DIR_DELIM + "meta";
3121 std::ofstream o(fullpath.c_str(), std::ios_base::binary);
3122 if(o.good() == false)
3123 throw FileNotGoodException("Cannot open sector metafile");
3125 sector->serialize(o, version);
3127 sector->differs_from_disk = false;
3130 MapSector* ServerMap::loadSectorMeta(std::string sectordir, bool save_after_load)
3132 DSTACK(__FUNCTION_NAME);
3134 v2s16 p2d = getSectorPos(sectordir);
3136 ServerMapSector *sector = NULL;
3138 std::string fullpath = sectordir + DIR_DELIM + "meta";
3139 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3140 if(is.good() == false)
3142 // If the directory exists anyway, it probably is in some old
3143 // format. Just go ahead and create the sector.
3144 if(fs::PathExists(sectordir))
3146 /*infostream<<"ServerMap::loadSectorMeta(): Sector metafile "
3147 <<fullpath<<" doesn't exist but directory does."
3148 <<" Continuing with a sector with no metadata."
3150 sector = new ServerMapSector(this, p2d, m_gamedef);
3151 m_sectors.insert(p2d, sector);
3155 throw FileNotGoodException("Cannot open sector metafile");
3160 sector = ServerMapSector::deSerialize
3161 (is, this, p2d, m_sectors, m_gamedef);
3163 saveSectorMeta(sector);
3166 sector->differs_from_disk = false;
3171 bool ServerMap::loadSectorMeta(v2s16 p2d)
3173 DSTACK(__FUNCTION_NAME);
3175 MapSector *sector = NULL;
3177 // The directory layout we're going to load from.
3178 // 1 - original sectors/xxxxzzzz/
3179 // 2 - new sectors2/xxx/zzz/
3180 // If we load from anything but the latest structure, we will
3181 // immediately save to the new one, and remove the old.
3183 std::string sectordir1 = getSectorDir(p2d, 1);
3184 std::string sectordir;
3185 if(fs::PathExists(sectordir1))
3187 sectordir = sectordir1;
3192 sectordir = getSectorDir(p2d, 2);
3196 sector = loadSectorMeta(sectordir, loadlayout != 2);
3198 catch(InvalidFilenameException &e)
3202 catch(FileNotGoodException &e)
3206 catch(std::exception &e)
3215 bool ServerMap::loadSectorFull(v2s16 p2d)
3217 DSTACK(__FUNCTION_NAME);
3219 MapSector *sector = NULL;
3221 // The directory layout we're going to load from.
3222 // 1 - original sectors/xxxxzzzz/
3223 // 2 - new sectors2/xxx/zzz/
3224 // If we load from anything but the latest structure, we will
3225 // immediately save to the new one, and remove the old.
3227 std::string sectordir1 = getSectorDir(p2d, 1);
3228 std::string sectordir;
3229 if(fs::PathExists(sectordir1))
3231 sectordir = sectordir1;
3236 sectordir = getSectorDir(p2d, 2);
3240 sector = loadSectorMeta(sectordir, loadlayout != 2);
3242 catch(InvalidFilenameException &e)
3246 catch(FileNotGoodException &e)
3250 catch(std::exception &e)
3258 std::vector<fs::DirListNode> list2 = fs::GetDirListing
3260 std::vector<fs::DirListNode>::iterator i2;
3261 for(i2=list2.begin(); i2!=list2.end(); i2++)
3267 loadBlock(sectordir, i2->name, sector, loadlayout != 2);
3269 catch(InvalidFilenameException &e)
3271 // This catches unknown crap in directory
3277 infostream<<"Sector converted to new layout - deleting "<<
3278 sectordir1<<std::endl;
3279 fs::RecursiveDelete(sectordir1);
3286 void ServerMap::beginSave() {
3288 if(sqlite3_exec(m_database, "BEGIN;", NULL, NULL, NULL) != SQLITE_OK)
3289 infostream<<"WARNING: beginSave() failed, saving might be slow.";
3292 void ServerMap::endSave() {
3294 if(sqlite3_exec(m_database, "COMMIT;", NULL, NULL, NULL) != SQLITE_OK)
3295 infostream<<"WARNING: endSave() failed, map might not have saved.";
3298 void ServerMap::saveBlock(MapBlock *block)
3300 DSTACK(__FUNCTION_NAME);
3302 Dummy blocks are not written
3304 if(block->isDummy())
3306 /*v3s16 p = block->getPos();
3307 infostream<<"ServerMap::saveBlock(): WARNING: Not writing dummy block "
3308 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
3312 // Format used for writing
3313 u8 version = SER_FMT_VER_HIGHEST;
3315 v3s16 p3d = block->getPos();
3319 v2s16 p2d(p3d.X, p3d.Z);
3320 std::string sectordir = getSectorDir(p2d);
3322 createDirs(sectordir);
3324 std::string fullpath = sectordir+DIR_DELIM+getBlockFilename(p3d);
3325 std::ofstream o(fullpath.c_str(), std::ios_base::binary);
3326 if(o.good() == false)
3327 throw FileNotGoodException("Cannot open block data");
3330 [0] u8 serialization version
3336 std::ostringstream o(std::ios_base::binary);
3338 o.write((char*)&version, 1);
3341 block->serialize(o, version, true);
3343 // Write block to database
3345 std::string tmp = o.str();
3346 const char *bytes = tmp.c_str();
3348 if(sqlite3_bind_int64(m_database_write, 1, getBlockAsInteger(p3d)) != SQLITE_OK)
3349 infostream<<"WARNING: Block position failed to bind: "<<sqlite3_errmsg(m_database)<<std::endl;
3350 if(sqlite3_bind_blob(m_database_write, 2, (void *)bytes, o.tellp(), NULL) != SQLITE_OK) // TODO this mught not be the right length
3351 infostream<<"WARNING: Block data failed to bind: "<<sqlite3_errmsg(m_database)<<std::endl;
3352 int written = sqlite3_step(m_database_write);
3353 if(written != SQLITE_DONE)
3354 infostream<<"WARNING: Block failed to save ("<<p3d.X<<", "<<p3d.Y<<", "<<p3d.Z<<") "
3355 <<sqlite3_errmsg(m_database)<<std::endl;
3356 // Make ready for later reuse
3357 sqlite3_reset(m_database_write);
3359 // We just wrote it to the disk so clear modified flag
3360 block->resetModified();
3363 void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load)
3365 DSTACK(__FUNCTION_NAME);
3367 std::string fullpath = sectordir+DIR_DELIM+blockfile;
3370 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3371 if(is.good() == false)
3372 throw FileNotGoodException("Cannot open block file");
3374 v3s16 p3d = getBlockPos(sectordir, blockfile);
3375 v2s16 p2d(p3d.X, p3d.Z);
3377 assert(sector->getPos() == p2d);
3379 u8 version = SER_FMT_VER_INVALID;
3380 is.read((char*)&version, 1);
3383 throw SerializationError("ServerMap::loadBlock(): Failed"
3384 " to read MapBlock version");
3386 /*u32 block_size = MapBlock::serializedLength(version);
3387 SharedBuffer<u8> data(block_size);
3388 is.read((char*)*data, block_size);*/
3390 // This will always return a sector because we're the server
3391 //MapSector *sector = emergeSector(p2d);
3393 MapBlock *block = NULL;
3394 bool created_new = false;
3395 block = sector->getBlockNoCreateNoEx(p3d.Y);
3398 block = sector->createBlankBlockNoInsert(p3d.Y);
3403 block->deSerialize(is, version, true);
3405 // If it's a new block, insert it to the map
3407 sector->insertBlock(block);
3410 Save blocks loaded in old format in new format
3413 if(version < SER_FMT_VER_HIGHEST || save_after_load)
3417 // Should be in database now, so delete the old file
3418 fs::RecursiveDelete(fullpath);
3421 // We just loaded it from the disk, so it's up-to-date.
3422 block->resetModified();
3425 catch(SerializationError &e)
3427 infostream<<"WARNING: Invalid block data on disk "
3428 <<"fullpath="<<fullpath
3429 <<" (SerializationError). "
3430 <<"what()="<<e.what()
3432 //" Ignoring. A new one will be generated.
3435 // TODO: Backup file; name is in fullpath.
3439 void ServerMap::loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load)
3441 DSTACK(__FUNCTION_NAME);
3444 std::istringstream is(*blob, std::ios_base::binary);
3446 u8 version = SER_FMT_VER_INVALID;
3447 is.read((char*)&version, 1);
3450 throw SerializationError("ServerMap::loadBlock(): Failed"
3451 " to read MapBlock version");
3453 /*u32 block_size = MapBlock::serializedLength(version);
3454 SharedBuffer<u8> data(block_size);
3455 is.read((char*)*data, block_size);*/
3457 // This will always return a sector because we're the server
3458 //MapSector *sector = emergeSector(p2d);
3460 MapBlock *block = NULL;
3461 bool created_new = false;
3462 block = sector->getBlockNoCreateNoEx(p3d.Y);
3465 block = sector->createBlankBlockNoInsert(p3d.Y);
3470 block->deSerialize(is, version, true);
3472 // If it's a new block, insert it to the map
3474 sector->insertBlock(block);
3477 Save blocks loaded in old format in new format
3480 //if(version < SER_FMT_VER_HIGHEST || save_after_load)
3481 // Only save if asked to; no need to update version
3485 // We just loaded it from, so it's up-to-date.
3486 block->resetModified();
3489 catch(SerializationError &e)
3491 errorstream<<"Invalid block data in database"
3492 <<" ("<<p3d.X<<","<<p3d.Y<<","<<p3d.Z<<")"
3493 <<" (SerializationError): "<<e.what()<<std::endl;
3495 // TODO: Block should be marked as invalid in memory so that it is
3496 // not touched but the game can run
3498 if(g_settings->getBool("ignore_world_load_errors")){
3499 errorstream<<"Ignoring block load error. Duck and cover! "
3500 <<"(ignore_world_load_errors)"<<std::endl;
3502 throw SerializationError("Invalid block data in database");
3508 MapBlock* ServerMap::loadBlock(v3s16 blockpos)
3510 DSTACK(__FUNCTION_NAME);
3512 v2s16 p2d(blockpos.X, blockpos.Z);
3514 if(!loadFromFolders()) {
3517 if(sqlite3_bind_int64(m_database_read, 1, getBlockAsInteger(blockpos)) != SQLITE_OK)
3518 infostream<<"WARNING: Could not bind block position for load: "
3519 <<sqlite3_errmsg(m_database)<<std::endl;
3520 if(sqlite3_step(m_database_read) == SQLITE_ROW) {
3522 Make sure sector is loaded
3524 MapSector *sector = createSector(p2d);
3529 const char * data = (const char *)sqlite3_column_blob(m_database_read, 0);
3530 size_t len = sqlite3_column_bytes(m_database_read, 0);
3532 std::string datastr(data, len);
3534 loadBlock(&datastr, blockpos, sector, false);
3536 sqlite3_step(m_database_read);
3537 // We should never get more than 1 row, so ok to reset
3538 sqlite3_reset(m_database_read);
3540 return getBlockNoCreateNoEx(blockpos);
3542 sqlite3_reset(m_database_read);
3544 // Not found in database, try the files
3547 // The directory layout we're going to load from.
3548 // 1 - original sectors/xxxxzzzz/
3549 // 2 - new sectors2/xxx/zzz/
3550 // If we load from anything but the latest structure, we will
3551 // immediately save to the new one, and remove the old.
3553 std::string sectordir1 = getSectorDir(p2d, 1);
3554 std::string sectordir;
3555 if(fs::PathExists(sectordir1))
3557 sectordir = sectordir1;
3562 sectordir = getSectorDir(p2d, 2);
3566 Make sure sector is loaded
3568 MapSector *sector = getSectorNoGenerateNoEx(p2d);
3572 sector = loadSectorMeta(sectordir, loadlayout != 2);
3574 catch(InvalidFilenameException &e)
3578 catch(FileNotGoodException &e)
3582 catch(std::exception &e)
3589 Make sure file exists
3592 std::string blockfilename = getBlockFilename(blockpos);
3593 if(fs::PathExists(sectordir+DIR_DELIM+blockfilename) == false)
3597 Load block and save it to the database
3599 loadBlock(sectordir, blockfilename, sector, true);
3600 return getBlockNoCreateNoEx(blockpos);
3603 void ServerMap::PrintInfo(std::ostream &out)
3612 MapVoxelManipulator::MapVoxelManipulator(Map *map)
3617 MapVoxelManipulator::~MapVoxelManipulator()
3619 /*infostream<<"MapVoxelManipulator: blocks: "<<m_loaded_blocks.size()
3623 void MapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
3625 TimeTaker timer1("emerge", &emerge_time);
3627 // Units of these are MapBlocks
3628 v3s16 p_min = getNodeBlockPos(a.MinEdge);
3629 v3s16 p_max = getNodeBlockPos(a.MaxEdge);
3631 VoxelArea block_area_nodes
3632 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3634 addArea(block_area_nodes);
3636 for(s32 z=p_min.Z; z<=p_max.Z; z++)
3637 for(s32 y=p_min.Y; y<=p_max.Y; y++)
3638 for(s32 x=p_min.X; x<=p_max.X; x++)
3641 core::map<v3s16, bool>::Node *n;
3642 n = m_loaded_blocks.find(p);
3646 bool block_data_inexistent = false;
3649 TimeTaker timer1("emerge load", &emerge_load_time);
3651 /*infostream<<"Loading block (caller_id="<<caller_id<<")"
3652 <<" ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3654 a.print(infostream);
3655 infostream<<std::endl;*/
3657 MapBlock *block = m_map->getBlockNoCreate(p);
3658 if(block->isDummy())
3659 block_data_inexistent = true;
3661 block->copyTo(*this);
3663 catch(InvalidPositionException &e)
3665 block_data_inexistent = true;
3668 if(block_data_inexistent)
3670 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3671 // Fill with VOXELFLAG_INEXISTENT
3672 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
3673 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
3675 s32 i = m_area.index(a.MinEdge.X,y,z);
3676 memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
3680 m_loaded_blocks.insert(p, !block_data_inexistent);
3683 //infostream<<"emerge done"<<std::endl;
3687 SUGG: Add an option to only update eg. water and air nodes.
3688 This will make it interfere less with important stuff if
3691 void MapVoxelManipulator::blitBack
3692 (core::map<v3s16, MapBlock*> & modified_blocks)
3694 if(m_area.getExtent() == v3s16(0,0,0))
3697 //TimeTaker timer1("blitBack");
3699 /*infostream<<"blitBack(): m_loaded_blocks.size()="
3700 <<m_loaded_blocks.size()<<std::endl;*/
3703 Initialize block cache
3705 v3s16 blockpos_last;
3706 MapBlock *block = NULL;
3707 bool block_checked_in_modified = false;
3709 for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
3710 for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
3711 for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
3715 u8 f = m_flags[m_area.index(p)];
3716 if(f & (VOXELFLAG_NOT_LOADED|VOXELFLAG_INEXISTENT))
3719 MapNode &n = m_data[m_area.index(p)];
3721 v3s16 blockpos = getNodeBlockPos(p);
3726 if(block == NULL || blockpos != blockpos_last){
3727 block = m_map->getBlockNoCreate(blockpos);
3728 blockpos_last = blockpos;
3729 block_checked_in_modified = false;
3732 // Calculate relative position in block
3733 v3s16 relpos = p - blockpos * MAP_BLOCKSIZE;
3735 // Don't continue if nothing has changed here
3736 if(block->getNode(relpos) == n)
3739 //m_map->setNode(m_area.MinEdge + p, n);
3740 block->setNode(relpos, n);
3743 Make sure block is in modified_blocks
3745 if(block_checked_in_modified == false)
3747 modified_blocks[blockpos] = block;
3748 block_checked_in_modified = true;
3751 catch(InvalidPositionException &e)
3757 ManualMapVoxelManipulator::ManualMapVoxelManipulator(Map *map):
3758 MapVoxelManipulator(map),
3759 m_create_area(false)
3763 ManualMapVoxelManipulator::~ManualMapVoxelManipulator()
3767 void ManualMapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
3769 // Just create the area so that it can be pointed to
3770 VoxelManipulator::emerge(a, caller_id);
3773 void ManualMapVoxelManipulator::initialEmerge(
3774 v3s16 blockpos_min, v3s16 blockpos_max)
3776 TimeTaker timer1("initialEmerge", &emerge_time);
3778 // Units of these are MapBlocks
3779 v3s16 p_min = blockpos_min;
3780 v3s16 p_max = blockpos_max;
3782 VoxelArea block_area_nodes
3783 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3785 u32 size_MB = block_area_nodes.getVolume()*4/1000000;
3788 infostream<<"initialEmerge: area: ";
3789 block_area_nodes.print(infostream);
3790 infostream<<" ("<<size_MB<<"MB)";
3791 infostream<<std::endl;
3794 addArea(block_area_nodes);
3796 for(s32 z=p_min.Z; z<=p_max.Z; z++)
3797 for(s32 y=p_min.Y; y<=p_max.Y; y++)
3798 for(s32 x=p_min.X; x<=p_max.X; x++)
3801 core::map<v3s16, bool>::Node *n;
3802 n = m_loaded_blocks.find(p);
3806 bool block_data_inexistent = false;
3809 TimeTaker timer1("emerge load", &emerge_load_time);
3811 MapBlock *block = m_map->getBlockNoCreate(p);
3812 if(block->isDummy())
3813 block_data_inexistent = true;
3815 block->copyTo(*this);
3817 catch(InvalidPositionException &e)
3819 block_data_inexistent = true;
3822 if(block_data_inexistent)
3825 Mark area inexistent
3827 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3828 // Fill with VOXELFLAG_INEXISTENT
3829 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
3830 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
3832 s32 i = m_area.index(a.MinEdge.X,y,z);
3833 memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
3837 m_loaded_blocks.insert(p, !block_data_inexistent);
3841 void ManualMapVoxelManipulator::blitBackAll(
3842 core::map<v3s16, MapBlock*> * modified_blocks)
3844 if(m_area.getExtent() == v3s16(0,0,0))
3848 Copy data of all blocks
3850 for(core::map<v3s16, bool>::Iterator
3851 i = m_loaded_blocks.getIterator();
3852 i.atEnd() == false; i++)
3854 v3s16 p = i.getNode()->getKey();
3855 bool existed = i.getNode()->getValue();
3856 if(existed == false)
3858 // The Great Bug was found using this
3859 /*infostream<<"ManualMapVoxelManipulator::blitBackAll: "
3860 <<"Inexistent ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3864 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
3867 infostream<<"WARNING: "<<__FUNCTION_NAME
3868 <<": got NULL block "
3869 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3874 block->copyFrom(*this);
3877 modified_blocks->insert(p, block);