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->refGet() == 0 && 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 >= 10000)
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 && nodemgr->get(liquid_kind).liquid_renewable) || 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 suspect = m_gamedef->rollback()->getSuspect(p0, 83, 1);
1834 if(!suspect.empty()){
1836 RollbackScopeActor rollback_scope(m_gamedef->rollback(), suspect, true);
1837 // Get old node for rollback
1838 RollbackNode rollback_oldnode(this, p0, m_gamedef);
1842 RollbackNode rollback_newnode(this, p0, m_gamedef);
1843 RollbackAction action;
1844 action.setSetNode(p0, rollback_oldnode, rollback_newnode);
1845 m_gamedef->rollback()->reportAction(action);
1851 v3s16 blockpos = getNodeBlockPos(p0);
1852 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1854 modified_blocks.insert(blockpos, block);
1855 // If node emits light, MapBlock requires lighting update
1856 if(nodemgr->get(n0).light_source != 0)
1857 lighting_modified_blocks[block->getPos()] = block;
1861 enqueue neighbors for update if neccessary
1863 switch (nodemgr->get(n0.getContent()).liquid_type) {
1865 case LIQUID_FLOWING:
1866 // make sure source flows into all neighboring nodes
1867 for (u16 i = 0; i < num_flows; i++)
1868 if (flows[i].t != NEIGHBOR_UPPER)
1869 m_transforming_liquid.push_back(flows[i].p);
1870 for (u16 i = 0; i < num_airs; i++)
1871 if (airs[i].t != NEIGHBOR_UPPER)
1872 m_transforming_liquid.push_back(airs[i].p);
1875 // this flow has turned to air; neighboring flows might need to do the same
1876 for (u16 i = 0; i < num_flows; i++)
1877 m_transforming_liquid.push_back(flows[i].p);
1881 //infostream<<"Map::transformLiquids(): loopcount="<<loopcount<<std::endl;
1882 while (must_reflow.size() > 0)
1883 m_transforming_liquid.push_back(must_reflow.pop_front());
1884 updateLighting(lighting_modified_blocks, modified_blocks);
1887 NodeMetadata* Map::getNodeMetadata(v3s16 p)
1889 v3s16 blockpos = getNodeBlockPos(p);
1890 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1891 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1893 infostream<<"Map::getNodeMetadata(): Need to emerge "
1894 <<PP(blockpos)<<std::endl;
1895 block = emergeBlock(blockpos, false);
1899 infostream<<"WARNING: Map::getNodeMetadata(): Block not found"
1903 NodeMetadata *meta = block->m_node_metadata.get(p_rel);
1907 void Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
1909 v3s16 blockpos = getNodeBlockPos(p);
1910 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1911 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1913 infostream<<"Map::setNodeMetadata(): Need to emerge "
1914 <<PP(blockpos)<<std::endl;
1915 block = emergeBlock(blockpos, false);
1919 infostream<<"WARNING: Map::setNodeMetadata(): Block not found"
1923 block->m_node_metadata.set(p_rel, meta);
1926 void Map::removeNodeMetadata(v3s16 p)
1928 v3s16 blockpos = getNodeBlockPos(p);
1929 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1930 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1933 infostream<<"WARNING: Map::removeNodeMetadata(): Block not found"
1937 block->m_node_metadata.remove(p_rel);
1940 NodeTimer Map::getNodeTimer(v3s16 p)
1942 v3s16 blockpos = getNodeBlockPos(p);
1943 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1944 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1946 infostream<<"Map::getNodeTimer(): Need to emerge "
1947 <<PP(blockpos)<<std::endl;
1948 block = emergeBlock(blockpos, false);
1952 infostream<<"WARNING: Map::getNodeTimer(): Block not found"
1956 NodeTimer t = block->m_node_timers.get(p_rel);
1960 void Map::setNodeTimer(v3s16 p, NodeTimer t)
1962 v3s16 blockpos = getNodeBlockPos(p);
1963 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1964 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1966 infostream<<"Map::setNodeTimer(): Need to emerge "
1967 <<PP(blockpos)<<std::endl;
1968 block = emergeBlock(blockpos, false);
1972 infostream<<"WARNING: Map::setNodeTimer(): Block not found"
1976 block->m_node_timers.set(p_rel, t);
1979 void Map::removeNodeTimer(v3s16 p)
1981 v3s16 blockpos = getNodeBlockPos(p);
1982 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1983 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1986 infostream<<"WARNING: Map::removeNodeTimer(): Block not found"
1990 block->m_node_timers.remove(p_rel);
1997 ServerMap::ServerMap(std::string savedir, IGameDef *gamedef):
1998 Map(dout_server, gamedef),
2000 m_map_metadata_changed(true),
2002 m_database_read(NULL),
2003 m_database_write(NULL)
2005 verbosestream<<__FUNCTION_NAME<<std::endl;
2007 //m_chunksize = 8; // Takes a few seconds
2009 if (g_settings->get("fixed_map_seed").empty())
2011 m_seed = (((u64)(myrand()%0xffff)<<0)
2012 + ((u64)(myrand()%0xffff)<<16)
2013 + ((u64)(myrand()%0xffff)<<32)
2014 + ((u64)(myrand()%0xffff)<<48));
2018 m_seed = g_settings->getU64("fixed_map_seed");
2022 Experimental and debug stuff
2029 Try to load map; if not found, create a new one.
2032 m_savedir = savedir;
2033 m_map_saving_enabled = false;
2037 // If directory exists, check contents and load if possible
2038 if(fs::PathExists(m_savedir))
2040 // If directory is empty, it is safe to save into it.
2041 if(fs::GetDirListing(m_savedir).size() == 0)
2043 infostream<<"ServerMap: Empty save directory is valid."
2045 m_map_saving_enabled = true;
2050 // Load map metadata (seed, chunksize)
2053 catch(FileNotGoodException &e){
2054 infostream<<"WARNING: Could not load map metadata"
2055 //<<" Disabling chunk-based generator."
2060 infostream<<"ServerMap: Successfully loaded map "
2061 <<"metadata from "<<savedir
2062 <<", assuming valid save directory."
2063 <<" seed="<<m_seed<<"."
2066 m_map_saving_enabled = true;
2067 // Map loaded, not creating new one
2071 // If directory doesn't exist, it is safe to save to it
2073 m_map_saving_enabled = true;
2076 catch(std::exception &e)
2078 infostream<<"WARNING: ServerMap: Failed to load map from "<<savedir
2079 <<", exception: "<<e.what()<<std::endl;
2080 infostream<<"Please remove the map or fix it."<<std::endl;
2081 infostream<<"WARNING: Map saving will be disabled."<<std::endl;
2084 infostream<<"Initializing new map."<<std::endl;
2086 // Create zero sector
2087 emergeSector(v2s16(0,0));
2089 // Initially write whole map
2090 save(MOD_STATE_CLEAN);
2093 ServerMap::~ServerMap()
2095 verbosestream<<__FUNCTION_NAME<<std::endl;
2099 if(m_map_saving_enabled)
2101 // Save only changed parts
2102 save(MOD_STATE_WRITE_AT_UNLOAD);
2103 infostream<<"ServerMap: Saved map to "<<m_savedir<<std::endl;
2107 infostream<<"ServerMap: Map not saved"<<std::endl;
2110 catch(std::exception &e)
2112 infostream<<"ServerMap: Failed to save map to "<<m_savedir
2113 <<", exception: "<<e.what()<<std::endl;
2117 Close database if it was opened
2120 sqlite3_finalize(m_database_read);
2121 if(m_database_write)
2122 sqlite3_finalize(m_database_write);
2124 sqlite3_close(m_database);
2130 core::map<v2s16, MapChunk*>::Iterator i = m_chunks.getIterator();
2131 for(; i.atEnd() == false; i++)
2133 MapChunk *chunk = i.getNode()->getValue();
2139 void ServerMap::initBlockMake(mapgen::BlockMakeData *data, v3s16 blockpos)
2141 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2142 if(enable_mapgen_debug_info)
2143 infostream<<"initBlockMake(): "
2144 <<"("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<") - "
2145 <<"("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<")"
2148 //s16 chunksize = 3;
2149 //v3s16 chunk_offset(-1,-1,-1);
2150 //s16 chunksize = 4;
2151 //v3s16 chunk_offset(-1,-1,-1);
2153 v3s16 chunk_offset(-2,-2,-2);
2154 v3s16 blockpos_div = getContainerPos(blockpos - chunk_offset, chunksize);
2155 v3s16 blockpos_min = blockpos_div * chunksize;
2156 v3s16 blockpos_max = blockpos_div * chunksize + v3s16(1,1,1)*(chunksize-1);
2157 blockpos_min += chunk_offset;
2158 blockpos_max += chunk_offset;
2160 //v3s16 extra_borders(1,1,1);
2161 v3s16 extra_borders(1,1,1);
2163 // Do nothing if not inside limits (+-1 because of neighbors)
2164 if(blockpos_over_limit(blockpos_min - extra_borders) ||
2165 blockpos_over_limit(blockpos_max + extra_borders))
2171 data->no_op = false;
2172 data->seed = m_seed;
2173 data->blockpos_min = blockpos_min;
2174 data->blockpos_max = blockpos_max;
2175 data->blockpos_requested = blockpos;
2176 data->nodedef = m_gamedef->ndef();
2179 Create the whole area of this and the neighboring blocks
2182 //TimeTaker timer("initBlockMake() create area");
2184 for(s16 x=blockpos_min.X-extra_borders.X;
2185 x<=blockpos_max.X+extra_borders.X; x++)
2186 for(s16 z=blockpos_min.Z-extra_borders.Z;
2187 z<=blockpos_max.Z+extra_borders.Z; z++)
2189 v2s16 sectorpos(x, z);
2190 // Sector metadata is loaded from disk if not already loaded.
2191 ServerMapSector *sector = createSector(sectorpos);
2194 for(s16 y=blockpos_min.Y-extra_borders.Y;
2195 y<=blockpos_max.Y+extra_borders.Y; y++)
2198 //MapBlock *block = createBlock(p);
2199 // 1) get from memory, 2) load from disk
2200 MapBlock *block = emergeBlock(p, false);
2201 // 3) create a blank one
2204 block = createBlock(p);
2207 Block gets sunlight if this is true.
2209 Refer to the map generator heuristics.
2211 bool ug = mapgen::block_is_underground(data->seed, p);
2212 block->setIsUnderground(ug);
2215 // Lighting will not be valid after make_chunk is called
2216 block->setLightingExpired(true);
2217 // Lighting will be calculated
2218 //block->setLightingExpired(false);
2224 Now we have a big empty area.
2226 Make a ManualMapVoxelManipulator that contains this and the
2230 // The area that contains this block and it's neighbors
2231 v3s16 bigarea_blocks_min = blockpos_min - extra_borders;
2232 v3s16 bigarea_blocks_max = blockpos_max + extra_borders;
2234 data->vmanip = new ManualMapVoxelManipulator(this);
2235 //data->vmanip->setMap(this);
2239 //TimeTaker timer("initBlockMake() initialEmerge");
2240 data->vmanip->initialEmerge(bigarea_blocks_min, bigarea_blocks_max);
2243 // Data is ready now.
2246 MapBlock* ServerMap::finishBlockMake(mapgen::BlockMakeData *data,
2247 core::map<v3s16, MapBlock*> &changed_blocks)
2249 v3s16 blockpos_min = data->blockpos_min;
2250 v3s16 blockpos_max = data->blockpos_max;
2251 v3s16 blockpos_requested = data->blockpos_requested;
2252 /*infostream<<"finishBlockMake(): ("<<blockpos_requested.X<<","
2253 <<blockpos_requested.Y<<","
2254 <<blockpos_requested.Z<<")"<<std::endl;*/
2256 v3s16 extra_borders(1,1,1);
2260 //infostream<<"finishBlockMake(): no-op"<<std::endl;
2264 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2266 /*infostream<<"Resulting vmanip:"<<std::endl;
2267 data->vmanip.print(infostream);*/
2269 // Make sure affected blocks are loaded
2270 for(s16 x=blockpos_min.X-extra_borders.X;
2271 x<=blockpos_max.X+extra_borders.X; x++)
2272 for(s16 z=blockpos_min.Z-extra_borders.Z;
2273 z<=blockpos_max.Z+extra_borders.Z; z++)
2274 for(s16 y=blockpos_min.Y-extra_borders.Y;
2275 y<=blockpos_max.Y+extra_borders.Y; y++)
2278 // Load from disk if not already in memory
2279 emergeBlock(p, false);
2283 Blit generated stuff to map
2284 NOTE: blitBackAll adds nearly everything to changed_blocks
2288 //TimeTaker timer("finishBlockMake() blitBackAll");
2289 data->vmanip->blitBackAll(&changed_blocks);
2292 if(enable_mapgen_debug_info)
2293 infostream<<"finishBlockMake: changed_blocks.size()="
2294 <<changed_blocks.size()<<std::endl;
2297 Copy transforming liquid information
2299 while(data->transforming_liquid.size() > 0)
2301 v3s16 p = data->transforming_liquid.pop_front();
2302 m_transforming_liquid.push_back(p);
2306 Do stuff in central blocks
2314 TimeTaker t("finishBlockMake lighting update");
2316 core::map<v3s16, MapBlock*> lighting_update_blocks;
2319 for(s16 x=blockpos_min.X-extra_borders.X;
2320 x<=blockpos_max.X+extra_borders.X; x++)
2321 for(s16 z=blockpos_min.Z-extra_borders.Z;
2322 z<=blockpos_max.Z+extra_borders.Z; z++)
2323 for(s16 y=blockpos_min.Y-extra_borders.Y;
2324 y<=blockpos_max.Y+extra_borders.Y; y++)
2327 MapBlock *block = getBlockNoCreateNoEx(p);
2329 lighting_update_blocks.insert(block->getPos(), block);
2332 updateLighting(lighting_update_blocks, changed_blocks);
2336 Set lighting to non-expired state in all of them.
2337 This is cheating, but it is not fast enough if all of them
2338 would actually be updated.
2340 for(s16 x=blockpos_min.X-extra_borders.X;
2341 x<=blockpos_max.X+extra_borders.X; x++)
2342 for(s16 z=blockpos_min.Z-extra_borders.Z;
2343 z<=blockpos_max.Z+extra_borders.Z; z++)
2344 for(s16 y=blockpos_min.Y-extra_borders.Y;
2345 y<=blockpos_max.Y+extra_borders.Y; y++)
2348 getBlockNoCreateNoEx(p)->setLightingExpired(false);
2352 if(enable_mapgen_debug_info == false)
2353 t.stop(true); // Hide output
2358 Go through changed blocks
2360 for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
2361 i.atEnd() == false; i++)
2363 MapBlock *block = i.getNode()->getValue();
2366 Update day/night difference cache of the MapBlocks
2368 block->expireDayNightDiff();
2370 Set block as modified
2372 block->raiseModified(MOD_STATE_WRITE_NEEDED,
2373 "finishBlockMake expireDayNightDiff");
2377 Set central blocks as generated
2379 for(s16 x=blockpos_min.X; x<=blockpos_max.X; x++)
2380 for(s16 z=blockpos_min.Z; z<=blockpos_max.Z; z++)
2381 for(s16 y=blockpos_min.Y; y<=blockpos_max.Y; y++)
2384 MapBlock *block = getBlockNoCreateNoEx(p);
2386 block->setGenerated(true);
2390 Save changed parts of map
2391 NOTE: Will be saved later.
2393 //save(MOD_STATE_WRITE_AT_UNLOAD);
2395 /*infostream<<"finishBlockMake() done for ("<<blockpos_requested.X
2396 <<","<<blockpos_requested.Y<<","
2397 <<blockpos_requested.Z<<")"<<std::endl;*/
2399 if(enable_mapgen_debug_info)
2402 Analyze resulting blocks
2404 /*for(s16 x=blockpos_min.X-1; x<=blockpos_max.X+1; x++)
2405 for(s16 z=blockpos_min.Z-1; z<=blockpos_max.Z+1; z++)
2406 for(s16 y=blockpos_min.Y-1; y<=blockpos_max.Y+1; y++)*/
2407 for(s16 x=blockpos_min.X-0; x<=blockpos_max.X+0; x++)
2408 for(s16 z=blockpos_min.Z-0; z<=blockpos_max.Z+0; z++)
2409 for(s16 y=blockpos_min.Y-0; y<=blockpos_max.Y+0; y++)
2411 v3s16 p = v3s16(x,y,z);
2412 MapBlock *block = getBlockNoCreateNoEx(p);
2414 snprintf(spos, 20, "(%2d,%2d,%2d)", x, y, z);
2415 infostream<<"Generated "<<spos<<": "
2416 <<analyze_block(block)<<std::endl;
2421 MapBlock *block = getBlockNoCreateNoEx(blockpos_requested);
2427 ServerMapSector * ServerMap::createSector(v2s16 p2d)
2429 DSTACKF("%s: p2d=(%d,%d)",
2434 Check if it exists already in memory
2436 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
2441 Try to load it from disk (with blocks)
2443 //if(loadSectorFull(p2d) == true)
2446 Try to load metadata from disk
2449 if(loadSectorMeta(p2d) == true)
2451 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
2454 infostream<<"ServerMap::createSector(): loadSectorFull didn't make a sector"<<std::endl;
2455 throw InvalidPositionException("");
2461 Do not create over-limit
2463 if(p2d.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2464 || p2d.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2465 || p2d.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2466 || p2d.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
2467 throw InvalidPositionException("createSector(): pos. over limit");
2470 Generate blank sector
2473 sector = new ServerMapSector(this, p2d, m_gamedef);
2475 // Sector position on map in nodes
2476 v2s16 nodepos2d = p2d * MAP_BLOCKSIZE;
2481 m_sectors.insert(p2d, sector);
2487 This is a quick-hand function for calling makeBlock().
2489 MapBlock * ServerMap::generateBlock(
2491 core::map<v3s16, MapBlock*> &modified_blocks
2494 DSTACKF("%s: p=(%d,%d,%d)", __FUNCTION_NAME, p.X, p.Y, p.Z);
2496 /*infostream<<"generateBlock(): "
2497 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
2500 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2502 TimeTaker timer("generateBlock");
2504 //MapBlock *block = original_dummy;
2506 v2s16 p2d(p.X, p.Z);
2507 v2s16 p2d_nodes = p2d * MAP_BLOCKSIZE;
2510 Do not generate over-limit
2512 if(blockpos_over_limit(p))
2514 infostream<<__FUNCTION_NAME<<": Block position over limit"<<std::endl;
2515 throw InvalidPositionException("generateBlock(): pos. over limit");
2519 Create block make data
2521 mapgen::BlockMakeData data;
2522 initBlockMake(&data, p);
2528 TimeTaker t("mapgen::make_block()");
2529 mapgen::make_block(&data);
2531 if(enable_mapgen_debug_info == false)
2532 t.stop(true); // Hide output
2536 Blit data back on map, update lighting, add mobs and whatever this does
2538 finishBlockMake(&data, modified_blocks);
2543 MapBlock *block = getBlockNoCreateNoEx(p);
2551 bool erroneus_content = false;
2552 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
2553 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
2554 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
2557 MapNode n = block->getNode(p);
2558 if(n.getContent() == CONTENT_IGNORE)
2560 infostream<<"CONTENT_IGNORE at "
2561 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
2563 erroneus_content = true;
2567 if(erroneus_content)
2576 Generate a completely empty block
2580 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
2581 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
2583 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
2586 n.setContent(CONTENT_AIR);
2587 block->setNode(v3s16(x0,y0,z0), n);
2593 if(enable_mapgen_debug_info == false)
2594 timer.stop(true); // Hide output
2599 MapBlock * ServerMap::createBlock(v3s16 p)
2601 DSTACKF("%s: p=(%d,%d,%d)",
2602 __FUNCTION_NAME, p.X, p.Y, p.Z);
2605 Do not create over-limit
2607 if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2608 || p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2609 || p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2610 || p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2611 || p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2612 || p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
2613 throw InvalidPositionException("createBlock(): pos. over limit");
2615 v2s16 p2d(p.X, p.Z);
2618 This will create or load a sector if not found in memory.
2619 If block exists on disk, it will be loaded.
2621 NOTE: On old save formats, this will be slow, as it generates
2622 lighting on blocks for them.
2624 ServerMapSector *sector;
2626 sector = (ServerMapSector*)createSector(p2d);
2627 assert(sector->getId() == MAPSECTOR_SERVER);
2629 catch(InvalidPositionException &e)
2631 infostream<<"createBlock: createSector() failed"<<std::endl;
2635 NOTE: This should not be done, or at least the exception
2636 should not be passed on as std::exception, because it
2637 won't be catched at all.
2639 /*catch(std::exception &e)
2641 infostream<<"createBlock: createSector() failed: "
2642 <<e.what()<<std::endl;
2647 Try to get a block from the sector
2650 MapBlock *block = sector->getBlockNoCreateNoEx(block_y);
2653 if(block->isDummy())
2658 block = sector->createBlankBlock(block_y);
2662 MapBlock * ServerMap::emergeBlock(v3s16 p, bool allow_generate)
2664 DSTACKF("%s: p=(%d,%d,%d), allow_generate=%d",
2666 p.X, p.Y, p.Z, allow_generate);
2669 MapBlock *block = getBlockNoCreateNoEx(p);
2670 if(block && block->isDummy() == false)
2675 MapBlock *block = loadBlock(p);
2682 core::map<v3s16, MapBlock*> modified_blocks;
2683 MapBlock *block = generateBlock(p, modified_blocks);
2687 event.type = MEET_OTHER;
2690 // Copy modified_blocks to event
2691 for(core::map<v3s16, MapBlock*>::Iterator
2692 i = modified_blocks.getIterator();
2693 i.atEnd()==false; i++)
2695 event.modified_blocks.insert(i.getNode()->getKey(), false);
2699 dispatchEvent(&event);
2708 s16 ServerMap::findGroundLevel(v2s16 p2d)
2712 Uh, just do something random...
2714 // Find existing map from top to down
2717 v3s16 p(p2d.X, max, p2d.Y);
2718 for(; p.Y>min; p.Y--)
2720 MapNode n = getNodeNoEx(p);
2721 if(n.getContent() != CONTENT_IGNORE)
2726 // If this node is not air, go to plan b
2727 if(getNodeNoEx(p).getContent() != CONTENT_AIR)
2729 // Search existing walkable and return it
2730 for(; p.Y>min; p.Y--)
2732 MapNode n = getNodeNoEx(p);
2733 if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
2742 Determine from map generator noise functions
2745 s16 level = mapgen::find_ground_level_from_noise(m_seed, p2d, 1);
2748 //double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
2749 //return (s16)level;
2752 void ServerMap::createDatabase() {
2755 e = sqlite3_exec(m_database,
2756 "CREATE TABLE IF NOT EXISTS `blocks` ("
2757 "`pos` INT NOT NULL PRIMARY KEY,"
2760 , NULL, NULL, NULL);
2761 if(e == SQLITE_ABORT)
2762 throw FileNotGoodException("Could not create database structure");
2764 infostream<<"ServerMap: Database structure was created";
2767 void ServerMap::verifyDatabase() {
2772 std::string dbp = m_savedir + DIR_DELIM + "map.sqlite";
2773 bool needs_create = false;
2777 Open the database connection
2780 createDirs(m_savedir);
2782 if(!fs::PathExists(dbp))
2783 needs_create = true;
2785 d = sqlite3_open_v2(dbp.c_str(), &m_database, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
2786 if(d != SQLITE_OK) {
2787 infostream<<"WARNING: Database failed to open: "<<sqlite3_errmsg(m_database)<<std::endl;
2788 throw FileNotGoodException("Cannot open database file");
2794 d = sqlite3_prepare(m_database, "SELECT `data` FROM `blocks` WHERE `pos`=? LIMIT 1", -1, &m_database_read, NULL);
2795 if(d != SQLITE_OK) {
2796 infostream<<"WARNING: Database read statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2797 throw FileNotGoodException("Cannot prepare read statement");
2800 d = sqlite3_prepare(m_database, "REPLACE INTO `blocks` VALUES(?, ?)", -1, &m_database_write, NULL);
2801 if(d != SQLITE_OK) {
2802 infostream<<"WARNING: Database write statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2803 throw FileNotGoodException("Cannot prepare write statement");
2806 d = sqlite3_prepare(m_database, "SELECT `pos` FROM `blocks`", -1, &m_database_list, NULL);
2807 if(d != SQLITE_OK) {
2808 infostream<<"WARNING: Database list statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2809 throw FileNotGoodException("Cannot prepare read statement");
2812 infostream<<"ServerMap: Database opened"<<std::endl;
2816 bool ServerMap::loadFromFolders() {
2817 if(!m_database && !fs::PathExists(m_savedir + DIR_DELIM + "map.sqlite"))
2822 sqlite3_int64 ServerMap::getBlockAsInteger(const v3s16 pos) {
2823 return (sqlite3_int64)pos.Z*16777216 +
2824 (sqlite3_int64)pos.Y*4096 + (sqlite3_int64)pos.X;
2827 void ServerMap::createDirs(std::string path)
2829 if(fs::CreateAllDirs(path) == false)
2831 m_dout<<DTIME<<"ServerMap: Failed to create directory "
2832 <<"\""<<path<<"\""<<std::endl;
2833 throw BaseException("ServerMap failed to create directory");
2837 std::string ServerMap::getSectorDir(v2s16 pos, int layout)
2843 snprintf(cc, 9, "%.4x%.4x",
2844 (unsigned int)pos.X&0xffff,
2845 (unsigned int)pos.Y&0xffff);
2847 return m_savedir + DIR_DELIM + "sectors" + DIR_DELIM + cc;
2849 snprintf(cc, 9, "%.3x" DIR_DELIM "%.3x",
2850 (unsigned int)pos.X&0xfff,
2851 (unsigned int)pos.Y&0xfff);
2853 return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
2859 v2s16 ServerMap::getSectorPos(std::string dirname)
2863 size_t spos = dirname.rfind(DIR_DELIM_C) + 1;
2864 assert(spos != std::string::npos);
2865 if(dirname.size() - spos == 8)
2868 r = sscanf(dirname.substr(spos).c_str(), "%4x%4x", &x, &y);
2870 else if(dirname.size() - spos == 3)
2873 r = sscanf(dirname.substr(spos-4).c_str(), "%3x" DIR_DELIM "%3x", &x, &y);
2874 // Sign-extend the 12 bit values up to 16 bits...
2875 if(x&0x800) x|=0xF000;
2876 if(y&0x800) y|=0xF000;
2883 v2s16 pos((s16)x, (s16)y);
2887 v3s16 ServerMap::getBlockPos(std::string sectordir, std::string blockfile)
2889 v2s16 p2d = getSectorPos(sectordir);
2891 if(blockfile.size() != 4){
2892 throw InvalidFilenameException("Invalid block filename");
2895 int r = sscanf(blockfile.c_str(), "%4x", &y);
2897 throw InvalidFilenameException("Invalid block filename");
2898 return v3s16(p2d.X, y, p2d.Y);
2901 std::string ServerMap::getBlockFilename(v3s16 p)
2904 snprintf(cc, 5, "%.4x", (unsigned int)p.Y&0xffff);
2908 void ServerMap::save(ModifiedState save_level)
2910 DSTACK(__FUNCTION_NAME);
2911 if(m_map_saving_enabled == false)
2913 infostream<<"WARNING: Not saving map, saving disabled."<<std::endl;
2917 if(save_level == MOD_STATE_CLEAN)
2918 infostream<<"ServerMap: Saving whole map, this can take time."
2921 if(m_map_metadata_changed || save_level == MOD_STATE_CLEAN)
2926 // Profile modified reasons
2927 Profiler modprofiler;
2929 u32 sector_meta_count = 0;
2930 u32 block_count = 0;
2931 u32 block_count_all = 0; // Number of blocks in memory
2933 // Don't do anything with sqlite unless something is really saved
2934 bool save_started = false;
2936 core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
2937 for(; i.atEnd() == false; i++)
2939 ServerMapSector *sector = (ServerMapSector*)i.getNode()->getValue();
2940 assert(sector->getId() == MAPSECTOR_SERVER);
2942 if(sector->differs_from_disk || save_level == MOD_STATE_CLEAN)
2944 saveSectorMeta(sector);
2945 sector_meta_count++;
2947 core::list<MapBlock*> blocks;
2948 sector->getBlocks(blocks);
2949 core::list<MapBlock*>::Iterator j;
2951 for(j=blocks.begin(); j!=blocks.end(); j++)
2953 MapBlock *block = *j;
2957 if(block->getModified() >= save_level)
2962 save_started = true;
2965 modprofiler.add(block->getModifiedReason(), 1);
2970 /*infostream<<"ServerMap: Written block ("
2971 <<block->getPos().X<<","
2972 <<block->getPos().Y<<","
2973 <<block->getPos().Z<<")"
2982 Only print if something happened or saved whole map
2984 if(save_level == MOD_STATE_CLEAN || sector_meta_count != 0
2985 || block_count != 0)
2987 infostream<<"ServerMap: Written: "
2988 <<sector_meta_count<<" sector metadata files, "
2989 <<block_count<<" block files"
2990 <<", "<<block_count_all<<" blocks in memory."
2992 PrintInfo(infostream); // ServerMap/ClientMap:
2993 infostream<<"Blocks modified by: "<<std::endl;
2994 modprofiler.print(infostream);
2998 static s32 unsignedToSigned(s32 i, s32 max_positive)
3000 if(i < max_positive)
3003 return i - 2*max_positive;
3006 // modulo of a negative number does not work consistently in C
3007 static sqlite3_int64 pythonmodulo(sqlite3_int64 i, sqlite3_int64 mod)
3011 return mod - ((-i) % mod);
3014 v3s16 ServerMap::getIntegerAsBlock(sqlite3_int64 i)
3016 s32 x = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3018 s32 y = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3020 s32 z = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3021 return v3s16(x,y,z);
3024 void ServerMap::listAllLoadableBlocks(core::list<v3s16> &dst)
3026 if(loadFromFolders()){
3027 errorstream<<"Map::listAllLoadableBlocks(): Result will be missing "
3028 <<"all blocks that are stored in flat files"<<std::endl;
3034 while(sqlite3_step(m_database_list) == SQLITE_ROW)
3036 sqlite3_int64 block_i = sqlite3_column_int64(m_database_list, 0);
3037 v3s16 p = getIntegerAsBlock(block_i);
3038 //dstream<<"block_i="<<block_i<<" p="<<PP(p)<<std::endl;
3044 void ServerMap::saveMapMeta()
3046 DSTACK(__FUNCTION_NAME);
3048 /*infostream<<"ServerMap::saveMapMeta(): "
3052 createDirs(m_savedir);
3054 std::string fullpath = m_savedir + DIR_DELIM + "map_meta.txt";
3055 std::ofstream os(fullpath.c_str(), std::ios_base::binary);
3056 if(os.good() == false)
3058 infostream<<"ERROR: ServerMap::saveMapMeta(): "
3059 <<"could not open"<<fullpath<<std::endl;
3060 throw FileNotGoodException("Cannot open chunk metadata");
3064 params.setU64("seed", m_seed);
3066 params.writeLines(os);
3068 os<<"[end_of_params]\n";
3070 m_map_metadata_changed = false;
3073 void ServerMap::loadMapMeta()
3075 DSTACK(__FUNCTION_NAME);
3077 /*infostream<<"ServerMap::loadMapMeta(): Loading map metadata"
3080 std::string fullpath = m_savedir + DIR_DELIM + "map_meta.txt";
3081 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3082 if(is.good() == false)
3084 infostream<<"ERROR: ServerMap::loadMapMeta(): "
3085 <<"could not open"<<fullpath<<std::endl;
3086 throw FileNotGoodException("Cannot open map metadata");
3094 throw SerializationError
3095 ("ServerMap::loadMapMeta(): [end_of_params] not found");
3097 std::getline(is, line);
3098 std::string trimmedline = trim(line);
3099 if(trimmedline == "[end_of_params]")
3101 params.parseConfigLine(line);
3104 m_seed = params.getU64("seed");
3106 verbosestream<<"ServerMap::loadMapMeta(): "<<"seed="<<m_seed<<std::endl;
3109 void ServerMap::saveSectorMeta(ServerMapSector *sector)
3111 DSTACK(__FUNCTION_NAME);
3112 // Format used for writing
3113 u8 version = SER_FMT_VER_HIGHEST;
3115 v2s16 pos = sector->getPos();
3116 std::string dir = getSectorDir(pos);
3119 std::string fullpath = dir + DIR_DELIM + "meta";
3120 std::ofstream o(fullpath.c_str(), std::ios_base::binary);
3121 if(o.good() == false)
3122 throw FileNotGoodException("Cannot open sector metafile");
3124 sector->serialize(o, version);
3126 sector->differs_from_disk = false;
3129 MapSector* ServerMap::loadSectorMeta(std::string sectordir, bool save_after_load)
3131 DSTACK(__FUNCTION_NAME);
3133 v2s16 p2d = getSectorPos(sectordir);
3135 ServerMapSector *sector = NULL;
3137 std::string fullpath = sectordir + DIR_DELIM + "meta";
3138 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3139 if(is.good() == false)
3141 // If the directory exists anyway, it probably is in some old
3142 // format. Just go ahead and create the sector.
3143 if(fs::PathExists(sectordir))
3145 /*infostream<<"ServerMap::loadSectorMeta(): Sector metafile "
3146 <<fullpath<<" doesn't exist but directory does."
3147 <<" Continuing with a sector with no metadata."
3149 sector = new ServerMapSector(this, p2d, m_gamedef);
3150 m_sectors.insert(p2d, sector);
3154 throw FileNotGoodException("Cannot open sector metafile");
3159 sector = ServerMapSector::deSerialize
3160 (is, this, p2d, m_sectors, m_gamedef);
3162 saveSectorMeta(sector);
3165 sector->differs_from_disk = false;
3170 bool ServerMap::loadSectorMeta(v2s16 p2d)
3172 DSTACK(__FUNCTION_NAME);
3174 MapSector *sector = NULL;
3176 // The directory layout we're going to load from.
3177 // 1 - original sectors/xxxxzzzz/
3178 // 2 - new sectors2/xxx/zzz/
3179 // If we load from anything but the latest structure, we will
3180 // immediately save to the new one, and remove the old.
3182 std::string sectordir1 = getSectorDir(p2d, 1);
3183 std::string sectordir;
3184 if(fs::PathExists(sectordir1))
3186 sectordir = sectordir1;
3191 sectordir = getSectorDir(p2d, 2);
3195 sector = loadSectorMeta(sectordir, loadlayout != 2);
3197 catch(InvalidFilenameException &e)
3201 catch(FileNotGoodException &e)
3205 catch(std::exception &e)
3214 bool ServerMap::loadSectorFull(v2s16 p2d)
3216 DSTACK(__FUNCTION_NAME);
3218 MapSector *sector = NULL;
3220 // The directory layout we're going to load from.
3221 // 1 - original sectors/xxxxzzzz/
3222 // 2 - new sectors2/xxx/zzz/
3223 // If we load from anything but the latest structure, we will
3224 // immediately save to the new one, and remove the old.
3226 std::string sectordir1 = getSectorDir(p2d, 1);
3227 std::string sectordir;
3228 if(fs::PathExists(sectordir1))
3230 sectordir = sectordir1;
3235 sectordir = getSectorDir(p2d, 2);
3239 sector = loadSectorMeta(sectordir, loadlayout != 2);
3241 catch(InvalidFilenameException &e)
3245 catch(FileNotGoodException &e)
3249 catch(std::exception &e)
3257 std::vector<fs::DirListNode> list2 = fs::GetDirListing
3259 std::vector<fs::DirListNode>::iterator i2;
3260 for(i2=list2.begin(); i2!=list2.end(); i2++)
3266 loadBlock(sectordir, i2->name, sector, loadlayout != 2);
3268 catch(InvalidFilenameException &e)
3270 // This catches unknown crap in directory
3276 infostream<<"Sector converted to new layout - deleting "<<
3277 sectordir1<<std::endl;
3278 fs::RecursiveDelete(sectordir1);
3285 void ServerMap::beginSave() {
3287 if(sqlite3_exec(m_database, "BEGIN;", NULL, NULL, NULL) != SQLITE_OK)
3288 infostream<<"WARNING: beginSave() failed, saving might be slow.";
3291 void ServerMap::endSave() {
3293 if(sqlite3_exec(m_database, "COMMIT;", NULL, NULL, NULL) != SQLITE_OK)
3294 infostream<<"WARNING: endSave() failed, map might not have saved.";
3297 void ServerMap::saveBlock(MapBlock *block)
3299 DSTACK(__FUNCTION_NAME);
3301 Dummy blocks are not written
3303 if(block->isDummy())
3305 /*v3s16 p = block->getPos();
3306 infostream<<"ServerMap::saveBlock(): WARNING: Not writing dummy block "
3307 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
3311 // Format used for writing
3312 u8 version = SER_FMT_VER_HIGHEST;
3314 v3s16 p3d = block->getPos();
3318 v2s16 p2d(p3d.X, p3d.Z);
3319 std::string sectordir = getSectorDir(p2d);
3321 createDirs(sectordir);
3323 std::string fullpath = sectordir+DIR_DELIM+getBlockFilename(p3d);
3324 std::ofstream o(fullpath.c_str(), std::ios_base::binary);
3325 if(o.good() == false)
3326 throw FileNotGoodException("Cannot open block data");
3329 [0] u8 serialization version
3335 std::ostringstream o(std::ios_base::binary);
3337 o.write((char*)&version, 1);
3340 block->serialize(o, version, true);
3342 // Write block to database
3344 std::string tmp = o.str();
3345 const char *bytes = tmp.c_str();
3347 if(sqlite3_bind_int64(m_database_write, 1, getBlockAsInteger(p3d)) != SQLITE_OK)
3348 infostream<<"WARNING: Block position failed to bind: "<<sqlite3_errmsg(m_database)<<std::endl;
3349 if(sqlite3_bind_blob(m_database_write, 2, (void *)bytes, o.tellp(), NULL) != SQLITE_OK) // TODO this mught not be the right length
3350 infostream<<"WARNING: Block data failed to bind: "<<sqlite3_errmsg(m_database)<<std::endl;
3351 int written = sqlite3_step(m_database_write);
3352 if(written != SQLITE_DONE)
3353 infostream<<"WARNING: Block failed to save ("<<p3d.X<<", "<<p3d.Y<<", "<<p3d.Z<<") "
3354 <<sqlite3_errmsg(m_database)<<std::endl;
3355 // Make ready for later reuse
3356 sqlite3_reset(m_database_write);
3358 // We just wrote it to the disk so clear modified flag
3359 block->resetModified();
3362 void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load)
3364 DSTACK(__FUNCTION_NAME);
3366 std::string fullpath = sectordir+DIR_DELIM+blockfile;
3369 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3370 if(is.good() == false)
3371 throw FileNotGoodException("Cannot open block file");
3373 v3s16 p3d = getBlockPos(sectordir, blockfile);
3374 v2s16 p2d(p3d.X, p3d.Z);
3376 assert(sector->getPos() == p2d);
3378 u8 version = SER_FMT_VER_INVALID;
3379 is.read((char*)&version, 1);
3382 throw SerializationError("ServerMap::loadBlock(): Failed"
3383 " to read MapBlock version");
3385 /*u32 block_size = MapBlock::serializedLength(version);
3386 SharedBuffer<u8> data(block_size);
3387 is.read((char*)*data, block_size);*/
3389 // This will always return a sector because we're the server
3390 //MapSector *sector = emergeSector(p2d);
3392 MapBlock *block = NULL;
3393 bool created_new = false;
3394 block = sector->getBlockNoCreateNoEx(p3d.Y);
3397 block = sector->createBlankBlockNoInsert(p3d.Y);
3402 block->deSerialize(is, version, true);
3404 // If it's a new block, insert it to the map
3406 sector->insertBlock(block);
3409 Save blocks loaded in old format in new format
3412 if(version < SER_FMT_VER_HIGHEST || save_after_load)
3416 // Should be in database now, so delete the old file
3417 fs::RecursiveDelete(fullpath);
3420 // We just loaded it from the disk, so it's up-to-date.
3421 block->resetModified();
3424 catch(SerializationError &e)
3426 infostream<<"WARNING: Invalid block data on disk "
3427 <<"fullpath="<<fullpath
3428 <<" (SerializationError). "
3429 <<"what()="<<e.what()
3431 //" Ignoring. A new one will be generated.
3434 // TODO: Backup file; name is in fullpath.
3438 void ServerMap::loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load)
3440 DSTACK(__FUNCTION_NAME);
3443 std::istringstream is(*blob, std::ios_base::binary);
3445 u8 version = SER_FMT_VER_INVALID;
3446 is.read((char*)&version, 1);
3449 throw SerializationError("ServerMap::loadBlock(): Failed"
3450 " to read MapBlock version");
3452 /*u32 block_size = MapBlock::serializedLength(version);
3453 SharedBuffer<u8> data(block_size);
3454 is.read((char*)*data, block_size);*/
3456 // This will always return a sector because we're the server
3457 //MapSector *sector = emergeSector(p2d);
3459 MapBlock *block = NULL;
3460 bool created_new = false;
3461 block = sector->getBlockNoCreateNoEx(p3d.Y);
3464 block = sector->createBlankBlockNoInsert(p3d.Y);
3469 block->deSerialize(is, version, true);
3471 // If it's a new block, insert it to the map
3473 sector->insertBlock(block);
3476 Save blocks loaded in old format in new format
3479 //if(version < SER_FMT_VER_HIGHEST || save_after_load)
3480 // Only save if asked to; no need to update version
3484 // We just loaded it from, so it's up-to-date.
3485 block->resetModified();
3488 catch(SerializationError &e)
3490 errorstream<<"Invalid block data in database"
3491 <<" ("<<p3d.X<<","<<p3d.Y<<","<<p3d.Z<<")"
3492 <<" (SerializationError): "<<e.what()<<std::endl;
3494 // TODO: Block should be marked as invalid in memory so that it is
3495 // not touched but the game can run
3497 if(g_settings->getBool("ignore_world_load_errors")){
3498 errorstream<<"Ignoring block load error. Duck and cover! "
3499 <<"(ignore_world_load_errors)"<<std::endl;
3501 throw SerializationError("Invalid block data in database");
3507 MapBlock* ServerMap::loadBlock(v3s16 blockpos)
3509 DSTACK(__FUNCTION_NAME);
3511 v2s16 p2d(blockpos.X, blockpos.Z);
3513 if(!loadFromFolders()) {
3516 if(sqlite3_bind_int64(m_database_read, 1, getBlockAsInteger(blockpos)) != SQLITE_OK)
3517 infostream<<"WARNING: Could not bind block position for load: "
3518 <<sqlite3_errmsg(m_database)<<std::endl;
3519 if(sqlite3_step(m_database_read) == SQLITE_ROW) {
3521 Make sure sector is loaded
3523 MapSector *sector = createSector(p2d);
3528 const char * data = (const char *)sqlite3_column_blob(m_database_read, 0);
3529 size_t len = sqlite3_column_bytes(m_database_read, 0);
3531 std::string datastr(data, len);
3533 loadBlock(&datastr, blockpos, sector, false);
3535 sqlite3_step(m_database_read);
3536 // We should never get more than 1 row, so ok to reset
3537 sqlite3_reset(m_database_read);
3539 return getBlockNoCreateNoEx(blockpos);
3541 sqlite3_reset(m_database_read);
3543 // Not found in database, try the files
3546 // The directory layout we're going to load from.
3547 // 1 - original sectors/xxxxzzzz/
3548 // 2 - new sectors2/xxx/zzz/
3549 // If we load from anything but the latest structure, we will
3550 // immediately save to the new one, and remove the old.
3552 std::string sectordir1 = getSectorDir(p2d, 1);
3553 std::string sectordir;
3554 if(fs::PathExists(sectordir1))
3556 sectordir = sectordir1;
3561 sectordir = getSectorDir(p2d, 2);
3565 Make sure sector is loaded
3567 MapSector *sector = getSectorNoGenerateNoEx(p2d);
3571 sector = loadSectorMeta(sectordir, loadlayout != 2);
3573 catch(InvalidFilenameException &e)
3577 catch(FileNotGoodException &e)
3581 catch(std::exception &e)
3588 Make sure file exists
3591 std::string blockfilename = getBlockFilename(blockpos);
3592 if(fs::PathExists(sectordir+DIR_DELIM+blockfilename) == false)
3596 Load block and save it to the database
3598 loadBlock(sectordir, blockfilename, sector, true);
3599 return getBlockNoCreateNoEx(blockpos);
3602 void ServerMap::PrintInfo(std::ostream &out)
3611 MapVoxelManipulator::MapVoxelManipulator(Map *map)
3616 MapVoxelManipulator::~MapVoxelManipulator()
3618 /*infostream<<"MapVoxelManipulator: blocks: "<<m_loaded_blocks.size()
3622 void MapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
3624 TimeTaker timer1("emerge", &emerge_time);
3626 // Units of these are MapBlocks
3627 v3s16 p_min = getNodeBlockPos(a.MinEdge);
3628 v3s16 p_max = getNodeBlockPos(a.MaxEdge);
3630 VoxelArea block_area_nodes
3631 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3633 addArea(block_area_nodes);
3635 for(s32 z=p_min.Z; z<=p_max.Z; z++)
3636 for(s32 y=p_min.Y; y<=p_max.Y; y++)
3637 for(s32 x=p_min.X; x<=p_max.X; x++)
3640 core::map<v3s16, bool>::Node *n;
3641 n = m_loaded_blocks.find(p);
3645 bool block_data_inexistent = false;
3648 TimeTaker timer1("emerge load", &emerge_load_time);
3650 /*infostream<<"Loading block (caller_id="<<caller_id<<")"
3651 <<" ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3653 a.print(infostream);
3654 infostream<<std::endl;*/
3656 MapBlock *block = m_map->getBlockNoCreate(p);
3657 if(block->isDummy())
3658 block_data_inexistent = true;
3660 block->copyTo(*this);
3662 catch(InvalidPositionException &e)
3664 block_data_inexistent = true;
3667 if(block_data_inexistent)
3669 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3670 // Fill with VOXELFLAG_INEXISTENT
3671 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
3672 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
3674 s32 i = m_area.index(a.MinEdge.X,y,z);
3675 memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
3679 m_loaded_blocks.insert(p, !block_data_inexistent);
3682 //infostream<<"emerge done"<<std::endl;
3686 SUGG: Add an option to only update eg. water and air nodes.
3687 This will make it interfere less with important stuff if
3690 void MapVoxelManipulator::blitBack
3691 (core::map<v3s16, MapBlock*> & modified_blocks)
3693 if(m_area.getExtent() == v3s16(0,0,0))
3696 //TimeTaker timer1("blitBack");
3698 /*infostream<<"blitBack(): m_loaded_blocks.size()="
3699 <<m_loaded_blocks.size()<<std::endl;*/
3702 Initialize block cache
3704 v3s16 blockpos_last;
3705 MapBlock *block = NULL;
3706 bool block_checked_in_modified = false;
3708 for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
3709 for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
3710 for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
3714 u8 f = m_flags[m_area.index(p)];
3715 if(f & (VOXELFLAG_NOT_LOADED|VOXELFLAG_INEXISTENT))
3718 MapNode &n = m_data[m_area.index(p)];
3720 v3s16 blockpos = getNodeBlockPos(p);
3725 if(block == NULL || blockpos != blockpos_last){
3726 block = m_map->getBlockNoCreate(blockpos);
3727 blockpos_last = blockpos;
3728 block_checked_in_modified = false;
3731 // Calculate relative position in block
3732 v3s16 relpos = p - blockpos * MAP_BLOCKSIZE;
3734 // Don't continue if nothing has changed here
3735 if(block->getNode(relpos) == n)
3738 //m_map->setNode(m_area.MinEdge + p, n);
3739 block->setNode(relpos, n);
3742 Make sure block is in modified_blocks
3744 if(block_checked_in_modified == false)
3746 modified_blocks[blockpos] = block;
3747 block_checked_in_modified = true;
3750 catch(InvalidPositionException &e)
3756 ManualMapVoxelManipulator::ManualMapVoxelManipulator(Map *map):
3757 MapVoxelManipulator(map),
3758 m_create_area(false)
3762 ManualMapVoxelManipulator::~ManualMapVoxelManipulator()
3766 void ManualMapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
3768 // Just create the area so that it can be pointed to
3769 VoxelManipulator::emerge(a, caller_id);
3772 void ManualMapVoxelManipulator::initialEmerge(
3773 v3s16 blockpos_min, v3s16 blockpos_max)
3775 TimeTaker timer1("initialEmerge", &emerge_time);
3777 // Units of these are MapBlocks
3778 v3s16 p_min = blockpos_min;
3779 v3s16 p_max = blockpos_max;
3781 VoxelArea block_area_nodes
3782 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3784 u32 size_MB = block_area_nodes.getVolume()*4/1000000;
3787 infostream<<"initialEmerge: area: ";
3788 block_area_nodes.print(infostream);
3789 infostream<<" ("<<size_MB<<"MB)";
3790 infostream<<std::endl;
3793 addArea(block_area_nodes);
3795 for(s32 z=p_min.Z; z<=p_max.Z; z++)
3796 for(s32 y=p_min.Y; y<=p_max.Y; y++)
3797 for(s32 x=p_min.X; x<=p_max.X; x++)
3800 core::map<v3s16, bool>::Node *n;
3801 n = m_loaded_blocks.find(p);
3805 bool block_data_inexistent = false;
3808 TimeTaker timer1("emerge load", &emerge_load_time);
3810 MapBlock *block = m_map->getBlockNoCreate(p);
3811 if(block->isDummy())
3812 block_data_inexistent = true;
3814 block->copyTo(*this);
3816 catch(InvalidPositionException &e)
3818 block_data_inexistent = true;
3821 if(block_data_inexistent)
3824 Mark area inexistent
3826 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3827 // Fill with VOXELFLAG_INEXISTENT
3828 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
3829 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
3831 s32 i = m_area.index(a.MinEdge.X,y,z);
3832 memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
3836 m_loaded_blocks.insert(p, !block_data_inexistent);
3840 void ManualMapVoxelManipulator::blitBackAll(
3841 core::map<v3s16, MapBlock*> * modified_blocks)
3843 if(m_area.getExtent() == v3s16(0,0,0))
3847 Copy data of all blocks
3849 for(core::map<v3s16, bool>::Iterator
3850 i = m_loaded_blocks.getIterator();
3851 i.atEnd() == false; i++)
3853 v3s16 p = i.getNode()->getKey();
3854 bool existed = i.getNode()->getValue();
3855 if(existed == false)
3857 // The Great Bug was found using this
3858 /*infostream<<"ManualMapVoxelManipulator::blitBackAll: "
3859 <<"Inexistent ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3863 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
3866 infostream<<"WARNING: "<<__FUNCTION_NAME
3867 <<": got NULL block "
3868 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3873 block->copyFrom(*this);
3876 modified_blocks->insert(p, block);