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 If something goes wrong, liquids are to blame
1626 NOTE: Do not track liquids; it causes huge amounts of rollback log
1628 //RollbackScopeActor rollback_scope(m_gamedef->rollback(), "liquid");
1631 u32 initial_size = m_transforming_liquid.size();
1633 /*if(initial_size != 0)
1634 infostream<<"transformLiquids(): initial_size="<<initial_size<<std::endl;*/
1636 // list of nodes that due to viscosity have not reached their max level height
1637 UniqueQueue<v3s16> must_reflow;
1639 // List of MapBlocks that will require a lighting update (due to lava)
1640 core::map<v3s16, MapBlock*> lighting_modified_blocks;
1642 while(m_transforming_liquid.size() != 0)
1644 // This should be done here so that it is done when continue is used
1645 if(loopcount >= initial_size * 3)
1650 Get a queued transforming liquid node
1652 v3s16 p0 = m_transforming_liquid.pop_front();
1654 MapNode n0 = getNodeNoEx(p0);
1657 Collect information about current node
1659 s8 liquid_level = -1;
1660 u8 liquid_kind = CONTENT_IGNORE;
1661 LiquidType liquid_type = nodemgr->get(n0).liquid_type;
1662 switch (liquid_type) {
1664 liquid_level = LIQUID_LEVEL_SOURCE;
1665 liquid_kind = nodemgr->getId(nodemgr->get(n0).liquid_alternative_flowing);
1667 case LIQUID_FLOWING:
1668 liquid_level = (n0.param2 & LIQUID_LEVEL_MASK);
1669 liquid_kind = n0.getContent();
1672 // if this is an air node, it *could* be transformed into a liquid. otherwise,
1673 // continue with the next node.
1674 if (n0.getContent() != CONTENT_AIR)
1676 liquid_kind = CONTENT_AIR;
1681 Collect information about the environment
1683 const v3s16 *dirs = g_6dirs;
1684 NodeNeighbor sources[6]; // surrounding sources
1685 int num_sources = 0;
1686 NodeNeighbor flows[6]; // surrounding flowing liquid nodes
1688 NodeNeighbor airs[6]; // surrounding air
1690 NodeNeighbor neutrals[6]; // nodes that are solid or another kind of liquid
1691 int num_neutrals = 0;
1692 bool flowing_down = false;
1693 for (u16 i = 0; i < 6; i++) {
1694 NeighborType nt = NEIGHBOR_SAME_LEVEL;
1697 nt = NEIGHBOR_UPPER;
1700 nt = NEIGHBOR_LOWER;
1703 v3s16 npos = p0 + dirs[i];
1704 NodeNeighbor nb = {getNodeNoEx(npos), nt, npos};
1705 switch (nodemgr->get(nb.n.getContent()).liquid_type) {
1707 if (nb.n.getContent() == CONTENT_AIR) {
1708 airs[num_airs++] = nb;
1709 // if the current node is a water source the neighbor
1710 // should be enqueded for transformation regardless of whether the
1711 // current node changes or not.
1712 if (nb.t != NEIGHBOR_UPPER && liquid_type != LIQUID_NONE)
1713 m_transforming_liquid.push_back(npos);
1714 // if the current node happens to be a flowing node, it will start to flow down here.
1715 if (nb.t == NEIGHBOR_LOWER) {
1716 flowing_down = true;
1719 neutrals[num_neutrals++] = nb;
1723 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
1724 if (liquid_kind == CONTENT_AIR)
1725 liquid_kind = nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing);
1726 if (nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing) != liquid_kind) {
1727 neutrals[num_neutrals++] = nb;
1729 // Do not count bottom source, it will screw things up
1731 sources[num_sources++] = nb;
1734 case LIQUID_FLOWING:
1735 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
1736 if (liquid_kind == CONTENT_AIR)
1737 liquid_kind = nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing);
1738 if (nodemgr->getId(nodemgr->get(nb.n).liquid_alternative_flowing) != liquid_kind) {
1739 neutrals[num_neutrals++] = nb;
1741 flows[num_flows++] = nb;
1742 if (nb.t == NEIGHBOR_LOWER)
1743 flowing_down = true;
1750 decide on the type (and possibly level) of the current node
1752 content_t new_node_content;
1753 s8 new_node_level = -1;
1754 s8 max_node_level = -1;
1755 if (num_sources >= 2 || liquid_type == LIQUID_SOURCE) {
1756 // liquid_kind will be set to either the flowing alternative of the node (if it's a liquid)
1757 // or the flowing alternative of the first of the surrounding sources (if it's air), so
1758 // it's perfectly safe to use liquid_kind here to determine the new node content.
1759 new_node_content = nodemgr->getId(nodemgr->get(liquid_kind).liquid_alternative_source);
1760 } else if (num_sources == 1 && sources[0].t != NEIGHBOR_LOWER) {
1761 // liquid_kind is set properly, see above
1762 new_node_content = liquid_kind;
1763 max_node_level = new_node_level = LIQUID_LEVEL_MAX;
1765 // no surrounding sources, so get the maximum level that can flow into this node
1766 for (u16 i = 0; i < num_flows; i++) {
1767 u8 nb_liquid_level = (flows[i].n.param2 & LIQUID_LEVEL_MASK);
1768 switch (flows[i].t) {
1769 case NEIGHBOR_UPPER:
1770 if (nb_liquid_level + WATER_DROP_BOOST > max_node_level) {
1771 max_node_level = LIQUID_LEVEL_MAX;
1772 if (nb_liquid_level + WATER_DROP_BOOST < LIQUID_LEVEL_MAX)
1773 max_node_level = nb_liquid_level + WATER_DROP_BOOST;
1774 } else if (nb_liquid_level > max_node_level)
1775 max_node_level = nb_liquid_level;
1777 case NEIGHBOR_LOWER:
1779 case NEIGHBOR_SAME_LEVEL:
1780 if ((flows[i].n.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK &&
1781 nb_liquid_level > 0 && nb_liquid_level - 1 > max_node_level) {
1782 max_node_level = nb_liquid_level - 1;
1788 u8 viscosity = nodemgr->get(liquid_kind).liquid_viscosity;
1789 if (viscosity > 1 && max_node_level != liquid_level) {
1790 // amount to gain, limited by viscosity
1791 // must be at least 1 in absolute value
1792 s8 level_inc = max_node_level - liquid_level;
1793 if (level_inc < -viscosity || level_inc > viscosity)
1794 new_node_level = liquid_level + level_inc/viscosity;
1795 else if (level_inc < 0)
1796 new_node_level = liquid_level - 1;
1797 else if (level_inc > 0)
1798 new_node_level = liquid_level + 1;
1799 if (new_node_level != max_node_level)
1800 must_reflow.push_back(p0);
1802 new_node_level = max_node_level;
1804 if (new_node_level >= 0)
1805 new_node_content = liquid_kind;
1807 new_node_content = CONTENT_AIR;
1812 check if anything has changed. if not, just continue with the next node.
1814 if (new_node_content == n0.getContent() && (nodemgr->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
1815 ((n0.param2 & LIQUID_LEVEL_MASK) == (u8)new_node_level &&
1816 ((n0.param2 & LIQUID_FLOW_DOWN_MASK) == LIQUID_FLOW_DOWN_MASK)
1822 update the current node
1824 //bool flow_down_enabled = (flowing_down && ((n0.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK));
1825 if (nodemgr->get(new_node_content).liquid_type == LIQUID_FLOWING) {
1826 // set level to last 3 bits, flowing down bit to 4th bit
1827 n0.param2 = (flowing_down ? LIQUID_FLOW_DOWN_MASK : 0x00) | (new_node_level & LIQUID_LEVEL_MASK);
1829 // set the liquid level and flow bit to 0
1830 n0.param2 = ~(LIQUID_LEVEL_MASK | LIQUID_FLOW_DOWN_MASK);
1832 n0.setContent(new_node_content);
1834 // Get old node for rollback
1835 //RollbackNode rollback_oldnode(this, p0, m_gamedef);
1840 // Report for rollback
1841 /*if(m_gamedef->rollback())
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);
1849 v3s16 blockpos = getNodeBlockPos(p0);
1850 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1852 modified_blocks.insert(blockpos, block);
1853 // If node emits light, MapBlock requires lighting update
1854 if(nodemgr->get(n0).light_source != 0)
1855 lighting_modified_blocks[block->getPos()] = block;
1859 enqueue neighbors for update if neccessary
1861 switch (nodemgr->get(n0.getContent()).liquid_type) {
1863 case LIQUID_FLOWING:
1864 // make sure source flows into all neighboring nodes
1865 for (u16 i = 0; i < num_flows; i++)
1866 if (flows[i].t != NEIGHBOR_UPPER)
1867 m_transforming_liquid.push_back(flows[i].p);
1868 for (u16 i = 0; i < num_airs; i++)
1869 if (airs[i].t != NEIGHBOR_UPPER)
1870 m_transforming_liquid.push_back(airs[i].p);
1873 // this flow has turned to air; neighboring flows might need to do the same
1874 for (u16 i = 0; i < num_flows; i++)
1875 m_transforming_liquid.push_back(flows[i].p);
1879 //infostream<<"Map::transformLiquids(): loopcount="<<loopcount<<std::endl;
1880 while (must_reflow.size() > 0)
1881 m_transforming_liquid.push_back(must_reflow.pop_front());
1882 updateLighting(lighting_modified_blocks, modified_blocks);
1885 NodeMetadata* Map::getNodeMetadata(v3s16 p)
1887 v3s16 blockpos = getNodeBlockPos(p);
1888 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1889 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1891 infostream<<"Map::getNodeMetadata(): Need to emerge "
1892 <<PP(blockpos)<<std::endl;
1893 block = emergeBlock(blockpos, false);
1897 infostream<<"WARNING: Map::getNodeMetadata(): Block not found"
1901 NodeMetadata *meta = block->m_node_metadata.get(p_rel);
1905 void Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
1907 v3s16 blockpos = getNodeBlockPos(p);
1908 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1909 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1911 infostream<<"Map::setNodeMetadata(): Need to emerge "
1912 <<PP(blockpos)<<std::endl;
1913 block = emergeBlock(blockpos, false);
1917 infostream<<"WARNING: Map::setNodeMetadata(): Block not found"
1921 block->m_node_metadata.set(p_rel, meta);
1924 void Map::removeNodeMetadata(v3s16 p)
1926 v3s16 blockpos = getNodeBlockPos(p);
1927 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1928 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1931 infostream<<"WARNING: Map::removeNodeMetadata(): Block not found"
1935 block->m_node_metadata.remove(p_rel);
1938 NodeTimer Map::getNodeTimer(v3s16 p)
1940 v3s16 blockpos = getNodeBlockPos(p);
1941 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1942 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1944 infostream<<"Map::getNodeTimer(): Need to emerge "
1945 <<PP(blockpos)<<std::endl;
1946 block = emergeBlock(blockpos, false);
1950 infostream<<"WARNING: Map::getNodeTimer(): Block not found"
1954 NodeTimer t = block->m_node_timers.get(p_rel);
1958 void Map::setNodeTimer(v3s16 p, NodeTimer t)
1960 v3s16 blockpos = getNodeBlockPos(p);
1961 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1962 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1964 infostream<<"Map::setNodeTimer(): Need to emerge "
1965 <<PP(blockpos)<<std::endl;
1966 block = emergeBlock(blockpos, false);
1970 infostream<<"WARNING: Map::setNodeTimer(): Block not found"
1974 block->m_node_timers.set(p_rel, t);
1977 void Map::removeNodeTimer(v3s16 p)
1979 v3s16 blockpos = getNodeBlockPos(p);
1980 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1981 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1984 infostream<<"WARNING: Map::removeNodeTimer(): Block not found"
1988 block->m_node_timers.remove(p_rel);
1995 ServerMap::ServerMap(std::string savedir, IGameDef *gamedef):
1996 Map(dout_server, gamedef),
1998 m_map_metadata_changed(true),
2000 m_database_read(NULL),
2001 m_database_write(NULL)
2003 verbosestream<<__FUNCTION_NAME<<std::endl;
2005 //m_chunksize = 8; // Takes a few seconds
2007 if (g_settings->get("fixed_map_seed").empty())
2009 m_seed = (((u64)(myrand()%0xffff)<<0)
2010 + ((u64)(myrand()%0xffff)<<16)
2011 + ((u64)(myrand()%0xffff)<<32)
2012 + ((u64)(myrand()%0xffff)<<48));
2016 m_seed = g_settings->getU64("fixed_map_seed");
2020 Experimental and debug stuff
2027 Try to load map; if not found, create a new one.
2030 m_savedir = savedir;
2031 m_map_saving_enabled = false;
2035 // If directory exists, check contents and load if possible
2036 if(fs::PathExists(m_savedir))
2038 // If directory is empty, it is safe to save into it.
2039 if(fs::GetDirListing(m_savedir).size() == 0)
2041 infostream<<"ServerMap: Empty save directory is valid."
2043 m_map_saving_enabled = true;
2048 // Load map metadata (seed, chunksize)
2051 catch(FileNotGoodException &e){
2052 infostream<<"WARNING: Could not load map metadata"
2053 //<<" Disabling chunk-based generator."
2058 infostream<<"ServerMap: Successfully loaded map "
2059 <<"metadata from "<<savedir
2060 <<", assuming valid save directory."
2061 <<" seed="<<m_seed<<"."
2064 m_map_saving_enabled = true;
2065 // Map loaded, not creating new one
2069 // If directory doesn't exist, it is safe to save to it
2071 m_map_saving_enabled = true;
2074 catch(std::exception &e)
2076 infostream<<"WARNING: ServerMap: Failed to load map from "<<savedir
2077 <<", exception: "<<e.what()<<std::endl;
2078 infostream<<"Please remove the map or fix it."<<std::endl;
2079 infostream<<"WARNING: Map saving will be disabled."<<std::endl;
2082 infostream<<"Initializing new map."<<std::endl;
2084 // Create zero sector
2085 emergeSector(v2s16(0,0));
2087 // Initially write whole map
2088 save(MOD_STATE_CLEAN);
2091 ServerMap::~ServerMap()
2093 verbosestream<<__FUNCTION_NAME<<std::endl;
2097 if(m_map_saving_enabled)
2099 // Save only changed parts
2100 save(MOD_STATE_WRITE_AT_UNLOAD);
2101 infostream<<"ServerMap: Saved map to "<<m_savedir<<std::endl;
2105 infostream<<"ServerMap: Map not saved"<<std::endl;
2108 catch(std::exception &e)
2110 infostream<<"ServerMap: Failed to save map to "<<m_savedir
2111 <<", exception: "<<e.what()<<std::endl;
2115 Close database if it was opened
2118 sqlite3_finalize(m_database_read);
2119 if(m_database_write)
2120 sqlite3_finalize(m_database_write);
2122 sqlite3_close(m_database);
2128 core::map<v2s16, MapChunk*>::Iterator i = m_chunks.getIterator();
2129 for(; i.atEnd() == false; i++)
2131 MapChunk *chunk = i.getNode()->getValue();
2137 void ServerMap::initBlockMake(mapgen::BlockMakeData *data, v3s16 blockpos)
2139 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2140 if(enable_mapgen_debug_info)
2141 infostream<<"initBlockMake(): "
2142 <<"("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<") - "
2143 <<"("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<")"
2146 //s16 chunksize = 3;
2147 //v3s16 chunk_offset(-1,-1,-1);
2148 //s16 chunksize = 4;
2149 //v3s16 chunk_offset(-1,-1,-1);
2151 v3s16 chunk_offset(-2,-2,-2);
2152 v3s16 blockpos_div = getContainerPos(blockpos - chunk_offset, chunksize);
2153 v3s16 blockpos_min = blockpos_div * chunksize;
2154 v3s16 blockpos_max = blockpos_div * chunksize + v3s16(1,1,1)*(chunksize-1);
2155 blockpos_min += chunk_offset;
2156 blockpos_max += chunk_offset;
2158 //v3s16 extra_borders(1,1,1);
2159 v3s16 extra_borders(1,1,1);
2161 // Do nothing if not inside limits (+-1 because of neighbors)
2162 if(blockpos_over_limit(blockpos_min - extra_borders) ||
2163 blockpos_over_limit(blockpos_max + extra_borders))
2169 data->no_op = false;
2170 data->seed = m_seed;
2171 data->blockpos_min = blockpos_min;
2172 data->blockpos_max = blockpos_max;
2173 data->blockpos_requested = blockpos;
2174 data->nodedef = m_gamedef->ndef();
2177 Create the whole area of this and the neighboring blocks
2180 //TimeTaker timer("initBlockMake() create area");
2182 for(s16 x=blockpos_min.X-extra_borders.X;
2183 x<=blockpos_max.X+extra_borders.X; x++)
2184 for(s16 z=blockpos_min.Z-extra_borders.Z;
2185 z<=blockpos_max.Z+extra_borders.Z; z++)
2187 v2s16 sectorpos(x, z);
2188 // Sector metadata is loaded from disk if not already loaded.
2189 ServerMapSector *sector = createSector(sectorpos);
2192 for(s16 y=blockpos_min.Y-extra_borders.Y;
2193 y<=blockpos_max.Y+extra_borders.Y; y++)
2196 //MapBlock *block = createBlock(p);
2197 // 1) get from memory, 2) load from disk
2198 MapBlock *block = emergeBlock(p, false);
2199 // 3) create a blank one
2202 block = createBlock(p);
2205 Block gets sunlight if this is true.
2207 Refer to the map generator heuristics.
2209 bool ug = mapgen::block_is_underground(data->seed, p);
2210 block->setIsUnderground(ug);
2213 // Lighting will not be valid after make_chunk is called
2214 block->setLightingExpired(true);
2215 // Lighting will be calculated
2216 //block->setLightingExpired(false);
2222 Now we have a big empty area.
2224 Make a ManualMapVoxelManipulator that contains this and the
2228 // The area that contains this block and it's neighbors
2229 v3s16 bigarea_blocks_min = blockpos_min - extra_borders;
2230 v3s16 bigarea_blocks_max = blockpos_max + extra_borders;
2232 data->vmanip = new ManualMapVoxelManipulator(this);
2233 //data->vmanip->setMap(this);
2237 //TimeTaker timer("initBlockMake() initialEmerge");
2238 data->vmanip->initialEmerge(bigarea_blocks_min, bigarea_blocks_max);
2241 // Data is ready now.
2244 MapBlock* ServerMap::finishBlockMake(mapgen::BlockMakeData *data,
2245 core::map<v3s16, MapBlock*> &changed_blocks)
2247 v3s16 blockpos_min = data->blockpos_min;
2248 v3s16 blockpos_max = data->blockpos_max;
2249 v3s16 blockpos_requested = data->blockpos_requested;
2250 /*infostream<<"finishBlockMake(): ("<<blockpos_requested.X<<","
2251 <<blockpos_requested.Y<<","
2252 <<blockpos_requested.Z<<")"<<std::endl;*/
2254 v3s16 extra_borders(1,1,1);
2258 //infostream<<"finishBlockMake(): no-op"<<std::endl;
2262 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2264 /*infostream<<"Resulting vmanip:"<<std::endl;
2265 data->vmanip.print(infostream);*/
2267 // Make sure affected blocks are loaded
2268 for(s16 x=blockpos_min.X-extra_borders.X;
2269 x<=blockpos_max.X+extra_borders.X; x++)
2270 for(s16 z=blockpos_min.Z-extra_borders.Z;
2271 z<=blockpos_max.Z+extra_borders.Z; z++)
2272 for(s16 y=blockpos_min.Y-extra_borders.Y;
2273 y<=blockpos_max.Y+extra_borders.Y; y++)
2276 // Load from disk if not already in memory
2277 emergeBlock(p, false);
2281 Blit generated stuff to map
2282 NOTE: blitBackAll adds nearly everything to changed_blocks
2286 //TimeTaker timer("finishBlockMake() blitBackAll");
2287 data->vmanip->blitBackAll(&changed_blocks);
2290 if(enable_mapgen_debug_info)
2291 infostream<<"finishBlockMake: changed_blocks.size()="
2292 <<changed_blocks.size()<<std::endl;
2295 Copy transforming liquid information
2297 while(data->transforming_liquid.size() > 0)
2299 v3s16 p = data->transforming_liquid.pop_front();
2300 m_transforming_liquid.push_back(p);
2304 Do stuff in central blocks
2312 TimeTaker t("finishBlockMake lighting update");
2314 core::map<v3s16, MapBlock*> lighting_update_blocks;
2317 for(s16 x=blockpos_min.X-extra_borders.X;
2318 x<=blockpos_max.X+extra_borders.X; x++)
2319 for(s16 z=blockpos_min.Z-extra_borders.Z;
2320 z<=blockpos_max.Z+extra_borders.Z; z++)
2321 for(s16 y=blockpos_min.Y-extra_borders.Y;
2322 y<=blockpos_max.Y+extra_borders.Y; y++)
2325 MapBlock *block = getBlockNoCreateNoEx(p);
2327 lighting_update_blocks.insert(block->getPos(), block);
2330 updateLighting(lighting_update_blocks, changed_blocks);
2334 Set lighting to non-expired state in all of them.
2335 This is cheating, but it is not fast enough if all of them
2336 would actually be updated.
2338 for(s16 x=blockpos_min.X-extra_borders.X;
2339 x<=blockpos_max.X+extra_borders.X; x++)
2340 for(s16 z=blockpos_min.Z-extra_borders.Z;
2341 z<=blockpos_max.Z+extra_borders.Z; z++)
2342 for(s16 y=blockpos_min.Y-extra_borders.Y;
2343 y<=blockpos_max.Y+extra_borders.Y; y++)
2346 getBlockNoCreateNoEx(p)->setLightingExpired(false);
2350 if(enable_mapgen_debug_info == false)
2351 t.stop(true); // Hide output
2356 Go through changed blocks
2358 for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
2359 i.atEnd() == false; i++)
2361 MapBlock *block = i.getNode()->getValue();
2364 Update day/night difference cache of the MapBlocks
2366 block->expireDayNightDiff();
2368 Set block as modified
2370 block->raiseModified(MOD_STATE_WRITE_NEEDED,
2371 "finishBlockMake expireDayNightDiff");
2375 Set central blocks as generated
2377 for(s16 x=blockpos_min.X; x<=blockpos_max.X; x++)
2378 for(s16 z=blockpos_min.Z; z<=blockpos_max.Z; z++)
2379 for(s16 y=blockpos_min.Y; y<=blockpos_max.Y; y++)
2382 MapBlock *block = getBlockNoCreateNoEx(p);
2384 block->setGenerated(true);
2388 Save changed parts of map
2389 NOTE: Will be saved later.
2391 //save(MOD_STATE_WRITE_AT_UNLOAD);
2393 /*infostream<<"finishBlockMake() done for ("<<blockpos_requested.X
2394 <<","<<blockpos_requested.Y<<","
2395 <<blockpos_requested.Z<<")"<<std::endl;*/
2397 if(enable_mapgen_debug_info)
2400 Analyze resulting blocks
2402 /*for(s16 x=blockpos_min.X-1; x<=blockpos_max.X+1; x++)
2403 for(s16 z=blockpos_min.Z-1; z<=blockpos_max.Z+1; z++)
2404 for(s16 y=blockpos_min.Y-1; y<=blockpos_max.Y+1; y++)*/
2405 for(s16 x=blockpos_min.X-0; x<=blockpos_max.X+0; x++)
2406 for(s16 z=blockpos_min.Z-0; z<=blockpos_max.Z+0; z++)
2407 for(s16 y=blockpos_min.Y-0; y<=blockpos_max.Y+0; y++)
2409 v3s16 p = v3s16(x,y,z);
2410 MapBlock *block = getBlockNoCreateNoEx(p);
2412 snprintf(spos, 20, "(%2d,%2d,%2d)", x, y, z);
2413 infostream<<"Generated "<<spos<<": "
2414 <<analyze_block(block)<<std::endl;
2419 MapBlock *block = getBlockNoCreateNoEx(blockpos_requested);
2425 ServerMapSector * ServerMap::createSector(v2s16 p2d)
2427 DSTACKF("%s: p2d=(%d,%d)",
2432 Check if it exists already in memory
2434 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
2439 Try to load it from disk (with blocks)
2441 //if(loadSectorFull(p2d) == true)
2444 Try to load metadata from disk
2447 if(loadSectorMeta(p2d) == true)
2449 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
2452 infostream<<"ServerMap::createSector(): loadSectorFull didn't make a sector"<<std::endl;
2453 throw InvalidPositionException("");
2459 Do not create over-limit
2461 if(p2d.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2462 || p2d.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2463 || p2d.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2464 || p2d.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
2465 throw InvalidPositionException("createSector(): pos. over limit");
2468 Generate blank sector
2471 sector = new ServerMapSector(this, p2d, m_gamedef);
2473 // Sector position on map in nodes
2474 v2s16 nodepos2d = p2d * MAP_BLOCKSIZE;
2479 m_sectors.insert(p2d, sector);
2485 This is a quick-hand function for calling makeBlock().
2487 MapBlock * ServerMap::generateBlock(
2489 core::map<v3s16, MapBlock*> &modified_blocks
2492 DSTACKF("%s: p=(%d,%d,%d)", __FUNCTION_NAME, p.X, p.Y, p.Z);
2494 /*infostream<<"generateBlock(): "
2495 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
2498 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
2500 TimeTaker timer("generateBlock");
2502 //MapBlock *block = original_dummy;
2504 v2s16 p2d(p.X, p.Z);
2505 v2s16 p2d_nodes = p2d * MAP_BLOCKSIZE;
2508 Do not generate over-limit
2510 if(blockpos_over_limit(p))
2512 infostream<<__FUNCTION_NAME<<": Block position over limit"<<std::endl;
2513 throw InvalidPositionException("generateBlock(): pos. over limit");
2517 Create block make data
2519 mapgen::BlockMakeData data;
2520 initBlockMake(&data, p);
2526 TimeTaker t("mapgen::make_block()");
2527 mapgen::make_block(&data);
2529 if(enable_mapgen_debug_info == false)
2530 t.stop(true); // Hide output
2534 Blit data back on map, update lighting, add mobs and whatever this does
2536 finishBlockMake(&data, modified_blocks);
2541 MapBlock *block = getBlockNoCreateNoEx(p);
2549 bool erroneus_content = false;
2550 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
2551 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
2552 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
2555 MapNode n = block->getNode(p);
2556 if(n.getContent() == CONTENT_IGNORE)
2558 infostream<<"CONTENT_IGNORE at "
2559 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
2561 erroneus_content = true;
2565 if(erroneus_content)
2574 Generate a completely empty block
2578 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
2579 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
2581 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
2584 n.setContent(CONTENT_AIR);
2585 block->setNode(v3s16(x0,y0,z0), n);
2591 if(enable_mapgen_debug_info == false)
2592 timer.stop(true); // Hide output
2597 MapBlock * ServerMap::createBlock(v3s16 p)
2599 DSTACKF("%s: p=(%d,%d,%d)",
2600 __FUNCTION_NAME, p.X, p.Y, p.Z);
2603 Do not create over-limit
2605 if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2606 || p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2607 || p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2608 || p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2609 || p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
2610 || p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
2611 throw InvalidPositionException("createBlock(): pos. over limit");
2613 v2s16 p2d(p.X, p.Z);
2616 This will create or load a sector if not found in memory.
2617 If block exists on disk, it will be loaded.
2619 NOTE: On old save formats, this will be slow, as it generates
2620 lighting on blocks for them.
2622 ServerMapSector *sector;
2624 sector = (ServerMapSector*)createSector(p2d);
2625 assert(sector->getId() == MAPSECTOR_SERVER);
2627 catch(InvalidPositionException &e)
2629 infostream<<"createBlock: createSector() failed"<<std::endl;
2633 NOTE: This should not be done, or at least the exception
2634 should not be passed on as std::exception, because it
2635 won't be catched at all.
2637 /*catch(std::exception &e)
2639 infostream<<"createBlock: createSector() failed: "
2640 <<e.what()<<std::endl;
2645 Try to get a block from the sector
2648 MapBlock *block = sector->getBlockNoCreateNoEx(block_y);
2651 if(block->isDummy())
2656 block = sector->createBlankBlock(block_y);
2660 MapBlock * ServerMap::emergeBlock(v3s16 p, bool allow_generate)
2662 DSTACKF("%s: p=(%d,%d,%d), allow_generate=%d",
2664 p.X, p.Y, p.Z, allow_generate);
2667 MapBlock *block = getBlockNoCreateNoEx(p);
2668 if(block && block->isDummy() == false)
2673 MapBlock *block = loadBlock(p);
2680 core::map<v3s16, MapBlock*> modified_blocks;
2681 MapBlock *block = generateBlock(p, modified_blocks);
2685 event.type = MEET_OTHER;
2688 // Copy modified_blocks to event
2689 for(core::map<v3s16, MapBlock*>::Iterator
2690 i = modified_blocks.getIterator();
2691 i.atEnd()==false; i++)
2693 event.modified_blocks.insert(i.getNode()->getKey(), false);
2697 dispatchEvent(&event);
2706 s16 ServerMap::findGroundLevel(v2s16 p2d)
2710 Uh, just do something random...
2712 // Find existing map from top to down
2715 v3s16 p(p2d.X, max, p2d.Y);
2716 for(; p.Y>min; p.Y--)
2718 MapNode n = getNodeNoEx(p);
2719 if(n.getContent() != CONTENT_IGNORE)
2724 // If this node is not air, go to plan b
2725 if(getNodeNoEx(p).getContent() != CONTENT_AIR)
2727 // Search existing walkable and return it
2728 for(; p.Y>min; p.Y--)
2730 MapNode n = getNodeNoEx(p);
2731 if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
2740 Determine from map generator noise functions
2743 s16 level = mapgen::find_ground_level_from_noise(m_seed, p2d, 1);
2746 //double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
2747 //return (s16)level;
2750 void ServerMap::createDatabase() {
2753 e = sqlite3_exec(m_database,
2754 "CREATE TABLE IF NOT EXISTS `blocks` ("
2755 "`pos` INT NOT NULL PRIMARY KEY,"
2758 , NULL, NULL, NULL);
2759 if(e == SQLITE_ABORT)
2760 throw FileNotGoodException("Could not create database structure");
2762 infostream<<"ServerMap: Database structure was created";
2765 void ServerMap::verifyDatabase() {
2770 std::string dbp = m_savedir + DIR_DELIM + "map.sqlite";
2771 bool needs_create = false;
2775 Open the database connection
2778 createDirs(m_savedir);
2780 if(!fs::PathExists(dbp))
2781 needs_create = true;
2783 d = sqlite3_open_v2(dbp.c_str(), &m_database, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
2784 if(d != SQLITE_OK) {
2785 infostream<<"WARNING: Database failed to open: "<<sqlite3_errmsg(m_database)<<std::endl;
2786 throw FileNotGoodException("Cannot open database file");
2792 d = sqlite3_prepare(m_database, "SELECT `data` FROM `blocks` WHERE `pos`=? LIMIT 1", -1, &m_database_read, NULL);
2793 if(d != SQLITE_OK) {
2794 infostream<<"WARNING: Database read statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2795 throw FileNotGoodException("Cannot prepare read statement");
2798 d = sqlite3_prepare(m_database, "REPLACE INTO `blocks` VALUES(?, ?)", -1, &m_database_write, NULL);
2799 if(d != SQLITE_OK) {
2800 infostream<<"WARNING: Database write statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2801 throw FileNotGoodException("Cannot prepare write statement");
2804 d = sqlite3_prepare(m_database, "SELECT `pos` FROM `blocks`", -1, &m_database_list, NULL);
2805 if(d != SQLITE_OK) {
2806 infostream<<"WARNING: Database list statment failed to prepare: "<<sqlite3_errmsg(m_database)<<std::endl;
2807 throw FileNotGoodException("Cannot prepare read statement");
2810 infostream<<"ServerMap: Database opened"<<std::endl;
2814 bool ServerMap::loadFromFolders() {
2815 if(!m_database && !fs::PathExists(m_savedir + DIR_DELIM + "map.sqlite"))
2820 sqlite3_int64 ServerMap::getBlockAsInteger(const v3s16 pos) {
2821 return (sqlite3_int64)pos.Z*16777216 +
2822 (sqlite3_int64)pos.Y*4096 + (sqlite3_int64)pos.X;
2825 void ServerMap::createDirs(std::string path)
2827 if(fs::CreateAllDirs(path) == false)
2829 m_dout<<DTIME<<"ServerMap: Failed to create directory "
2830 <<"\""<<path<<"\""<<std::endl;
2831 throw BaseException("ServerMap failed to create directory");
2835 std::string ServerMap::getSectorDir(v2s16 pos, int layout)
2841 snprintf(cc, 9, "%.4x%.4x",
2842 (unsigned int)pos.X&0xffff,
2843 (unsigned int)pos.Y&0xffff);
2845 return m_savedir + DIR_DELIM + "sectors" + DIR_DELIM + cc;
2847 snprintf(cc, 9, "%.3x" DIR_DELIM "%.3x",
2848 (unsigned int)pos.X&0xfff,
2849 (unsigned int)pos.Y&0xfff);
2851 return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
2857 v2s16 ServerMap::getSectorPos(std::string dirname)
2861 size_t spos = dirname.rfind(DIR_DELIM_C) + 1;
2862 assert(spos != std::string::npos);
2863 if(dirname.size() - spos == 8)
2866 r = sscanf(dirname.substr(spos).c_str(), "%4x%4x", &x, &y);
2868 else if(dirname.size() - spos == 3)
2871 r = sscanf(dirname.substr(spos-4).c_str(), "%3x" DIR_DELIM "%3x", &x, &y);
2872 // Sign-extend the 12 bit values up to 16 bits...
2873 if(x&0x800) x|=0xF000;
2874 if(y&0x800) y|=0xF000;
2881 v2s16 pos((s16)x, (s16)y);
2885 v3s16 ServerMap::getBlockPos(std::string sectordir, std::string blockfile)
2887 v2s16 p2d = getSectorPos(sectordir);
2889 if(blockfile.size() != 4){
2890 throw InvalidFilenameException("Invalid block filename");
2893 int r = sscanf(blockfile.c_str(), "%4x", &y);
2895 throw InvalidFilenameException("Invalid block filename");
2896 return v3s16(p2d.X, y, p2d.Y);
2899 std::string ServerMap::getBlockFilename(v3s16 p)
2902 snprintf(cc, 5, "%.4x", (unsigned int)p.Y&0xffff);
2906 void ServerMap::save(ModifiedState save_level)
2908 DSTACK(__FUNCTION_NAME);
2909 if(m_map_saving_enabled == false)
2911 infostream<<"WARNING: Not saving map, saving disabled."<<std::endl;
2915 if(save_level == MOD_STATE_CLEAN)
2916 infostream<<"ServerMap: Saving whole map, this can take time."
2919 if(m_map_metadata_changed || save_level == MOD_STATE_CLEAN)
2924 // Profile modified reasons
2925 Profiler modprofiler;
2927 u32 sector_meta_count = 0;
2928 u32 block_count = 0;
2929 u32 block_count_all = 0; // Number of blocks in memory
2931 // Don't do anything with sqlite unless something is really saved
2932 bool save_started = false;
2934 core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
2935 for(; i.atEnd() == false; i++)
2937 ServerMapSector *sector = (ServerMapSector*)i.getNode()->getValue();
2938 assert(sector->getId() == MAPSECTOR_SERVER);
2940 if(sector->differs_from_disk || save_level == MOD_STATE_CLEAN)
2942 saveSectorMeta(sector);
2943 sector_meta_count++;
2945 core::list<MapBlock*> blocks;
2946 sector->getBlocks(blocks);
2947 core::list<MapBlock*>::Iterator j;
2949 for(j=blocks.begin(); j!=blocks.end(); j++)
2951 MapBlock *block = *j;
2955 if(block->getModified() >= save_level)
2960 save_started = true;
2963 modprofiler.add(block->getModifiedReason(), 1);
2968 /*infostream<<"ServerMap: Written block ("
2969 <<block->getPos().X<<","
2970 <<block->getPos().Y<<","
2971 <<block->getPos().Z<<")"
2980 Only print if something happened or saved whole map
2982 if(save_level == MOD_STATE_CLEAN || sector_meta_count != 0
2983 || block_count != 0)
2985 infostream<<"ServerMap: Written: "
2986 <<sector_meta_count<<" sector metadata files, "
2987 <<block_count<<" block files"
2988 <<", "<<block_count_all<<" blocks in memory."
2990 PrintInfo(infostream); // ServerMap/ClientMap:
2991 infostream<<"Blocks modified by: "<<std::endl;
2992 modprofiler.print(infostream);
2996 static s32 unsignedToSigned(s32 i, s32 max_positive)
2998 if(i < max_positive)
3001 return i - 2*max_positive;
3004 // modulo of a negative number does not work consistently in C
3005 static sqlite3_int64 pythonmodulo(sqlite3_int64 i, sqlite3_int64 mod)
3009 return mod - ((-i) % mod);
3012 v3s16 ServerMap::getIntegerAsBlock(sqlite3_int64 i)
3014 s32 x = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3016 s32 y = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3018 s32 z = unsignedToSigned(pythonmodulo(i, 4096), 2048);
3019 return v3s16(x,y,z);
3022 void ServerMap::listAllLoadableBlocks(core::list<v3s16> &dst)
3024 if(loadFromFolders()){
3025 errorstream<<"Map::listAllLoadableBlocks(): Result will be missing "
3026 <<"all blocks that are stored in flat files"<<std::endl;
3032 while(sqlite3_step(m_database_list) == SQLITE_ROW)
3034 sqlite3_int64 block_i = sqlite3_column_int64(m_database_list, 0);
3035 v3s16 p = getIntegerAsBlock(block_i);
3036 //dstream<<"block_i="<<block_i<<" p="<<PP(p)<<std::endl;
3042 void ServerMap::saveMapMeta()
3044 DSTACK(__FUNCTION_NAME);
3046 /*infostream<<"ServerMap::saveMapMeta(): "
3050 createDirs(m_savedir);
3052 std::string fullpath = m_savedir + DIR_DELIM + "map_meta.txt";
3053 std::ofstream os(fullpath.c_str(), std::ios_base::binary);
3054 if(os.good() == false)
3056 infostream<<"ERROR: ServerMap::saveMapMeta(): "
3057 <<"could not open"<<fullpath<<std::endl;
3058 throw FileNotGoodException("Cannot open chunk metadata");
3062 params.setU64("seed", m_seed);
3064 params.writeLines(os);
3066 os<<"[end_of_params]\n";
3068 m_map_metadata_changed = false;
3071 void ServerMap::loadMapMeta()
3073 DSTACK(__FUNCTION_NAME);
3075 /*infostream<<"ServerMap::loadMapMeta(): Loading map metadata"
3078 std::string fullpath = m_savedir + DIR_DELIM + "map_meta.txt";
3079 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3080 if(is.good() == false)
3082 infostream<<"ERROR: ServerMap::loadMapMeta(): "
3083 <<"could not open"<<fullpath<<std::endl;
3084 throw FileNotGoodException("Cannot open map metadata");
3092 throw SerializationError
3093 ("ServerMap::loadMapMeta(): [end_of_params] not found");
3095 std::getline(is, line);
3096 std::string trimmedline = trim(line);
3097 if(trimmedline == "[end_of_params]")
3099 params.parseConfigLine(line);
3102 m_seed = params.getU64("seed");
3104 verbosestream<<"ServerMap::loadMapMeta(): "<<"seed="<<m_seed<<std::endl;
3107 void ServerMap::saveSectorMeta(ServerMapSector *sector)
3109 DSTACK(__FUNCTION_NAME);
3110 // Format used for writing
3111 u8 version = SER_FMT_VER_HIGHEST;
3113 v2s16 pos = sector->getPos();
3114 std::string dir = getSectorDir(pos);
3117 std::string fullpath = dir + DIR_DELIM + "meta";
3118 std::ofstream o(fullpath.c_str(), std::ios_base::binary);
3119 if(o.good() == false)
3120 throw FileNotGoodException("Cannot open sector metafile");
3122 sector->serialize(o, version);
3124 sector->differs_from_disk = false;
3127 MapSector* ServerMap::loadSectorMeta(std::string sectordir, bool save_after_load)
3129 DSTACK(__FUNCTION_NAME);
3131 v2s16 p2d = getSectorPos(sectordir);
3133 ServerMapSector *sector = NULL;
3135 std::string fullpath = sectordir + DIR_DELIM + "meta";
3136 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3137 if(is.good() == false)
3139 // If the directory exists anyway, it probably is in some old
3140 // format. Just go ahead and create the sector.
3141 if(fs::PathExists(sectordir))
3143 /*infostream<<"ServerMap::loadSectorMeta(): Sector metafile "
3144 <<fullpath<<" doesn't exist but directory does."
3145 <<" Continuing with a sector with no metadata."
3147 sector = new ServerMapSector(this, p2d, m_gamedef);
3148 m_sectors.insert(p2d, sector);
3152 throw FileNotGoodException("Cannot open sector metafile");
3157 sector = ServerMapSector::deSerialize
3158 (is, this, p2d, m_sectors, m_gamedef);
3160 saveSectorMeta(sector);
3163 sector->differs_from_disk = false;
3168 bool ServerMap::loadSectorMeta(v2s16 p2d)
3170 DSTACK(__FUNCTION_NAME);
3172 MapSector *sector = NULL;
3174 // The directory layout we're going to load from.
3175 // 1 - original sectors/xxxxzzzz/
3176 // 2 - new sectors2/xxx/zzz/
3177 // If we load from anything but the latest structure, we will
3178 // immediately save to the new one, and remove the old.
3180 std::string sectordir1 = getSectorDir(p2d, 1);
3181 std::string sectordir;
3182 if(fs::PathExists(sectordir1))
3184 sectordir = sectordir1;
3189 sectordir = getSectorDir(p2d, 2);
3193 sector = loadSectorMeta(sectordir, loadlayout != 2);
3195 catch(InvalidFilenameException &e)
3199 catch(FileNotGoodException &e)
3203 catch(std::exception &e)
3212 bool ServerMap::loadSectorFull(v2s16 p2d)
3214 DSTACK(__FUNCTION_NAME);
3216 MapSector *sector = NULL;
3218 // The directory layout we're going to load from.
3219 // 1 - original sectors/xxxxzzzz/
3220 // 2 - new sectors2/xxx/zzz/
3221 // If we load from anything but the latest structure, we will
3222 // immediately save to the new one, and remove the old.
3224 std::string sectordir1 = getSectorDir(p2d, 1);
3225 std::string sectordir;
3226 if(fs::PathExists(sectordir1))
3228 sectordir = sectordir1;
3233 sectordir = getSectorDir(p2d, 2);
3237 sector = loadSectorMeta(sectordir, loadlayout != 2);
3239 catch(InvalidFilenameException &e)
3243 catch(FileNotGoodException &e)
3247 catch(std::exception &e)
3255 std::vector<fs::DirListNode> list2 = fs::GetDirListing
3257 std::vector<fs::DirListNode>::iterator i2;
3258 for(i2=list2.begin(); i2!=list2.end(); i2++)
3264 loadBlock(sectordir, i2->name, sector, loadlayout != 2);
3266 catch(InvalidFilenameException &e)
3268 // This catches unknown crap in directory
3274 infostream<<"Sector converted to new layout - deleting "<<
3275 sectordir1<<std::endl;
3276 fs::RecursiveDelete(sectordir1);
3283 void ServerMap::beginSave() {
3285 if(sqlite3_exec(m_database, "BEGIN;", NULL, NULL, NULL) != SQLITE_OK)
3286 infostream<<"WARNING: beginSave() failed, saving might be slow.";
3289 void ServerMap::endSave() {
3291 if(sqlite3_exec(m_database, "COMMIT;", NULL, NULL, NULL) != SQLITE_OK)
3292 infostream<<"WARNING: endSave() failed, map might not have saved.";
3295 void ServerMap::saveBlock(MapBlock *block)
3297 DSTACK(__FUNCTION_NAME);
3299 Dummy blocks are not written
3301 if(block->isDummy())
3303 /*v3s16 p = block->getPos();
3304 infostream<<"ServerMap::saveBlock(): WARNING: Not writing dummy block "
3305 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
3309 // Format used for writing
3310 u8 version = SER_FMT_VER_HIGHEST;
3312 v3s16 p3d = block->getPos();
3316 v2s16 p2d(p3d.X, p3d.Z);
3317 std::string sectordir = getSectorDir(p2d);
3319 createDirs(sectordir);
3321 std::string fullpath = sectordir+DIR_DELIM+getBlockFilename(p3d);
3322 std::ofstream o(fullpath.c_str(), std::ios_base::binary);
3323 if(o.good() == false)
3324 throw FileNotGoodException("Cannot open block data");
3327 [0] u8 serialization version
3333 std::ostringstream o(std::ios_base::binary);
3335 o.write((char*)&version, 1);
3338 block->serialize(o, version, true);
3340 // Write block to database
3342 std::string tmp = o.str();
3343 const char *bytes = tmp.c_str();
3345 if(sqlite3_bind_int64(m_database_write, 1, getBlockAsInteger(p3d)) != SQLITE_OK)
3346 infostream<<"WARNING: Block position failed to bind: "<<sqlite3_errmsg(m_database)<<std::endl;
3347 if(sqlite3_bind_blob(m_database_write, 2, (void *)bytes, o.tellp(), NULL) != SQLITE_OK) // TODO this mught not be the right length
3348 infostream<<"WARNING: Block data failed to bind: "<<sqlite3_errmsg(m_database)<<std::endl;
3349 int written = sqlite3_step(m_database_write);
3350 if(written != SQLITE_DONE)
3351 infostream<<"WARNING: Block failed to save ("<<p3d.X<<", "<<p3d.Y<<", "<<p3d.Z<<") "
3352 <<sqlite3_errmsg(m_database)<<std::endl;
3353 // Make ready for later reuse
3354 sqlite3_reset(m_database_write);
3356 // We just wrote it to the disk so clear modified flag
3357 block->resetModified();
3360 void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load)
3362 DSTACK(__FUNCTION_NAME);
3364 std::string fullpath = sectordir+DIR_DELIM+blockfile;
3367 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
3368 if(is.good() == false)
3369 throw FileNotGoodException("Cannot open block file");
3371 v3s16 p3d = getBlockPos(sectordir, blockfile);
3372 v2s16 p2d(p3d.X, p3d.Z);
3374 assert(sector->getPos() == p2d);
3376 u8 version = SER_FMT_VER_INVALID;
3377 is.read((char*)&version, 1);
3380 throw SerializationError("ServerMap::loadBlock(): Failed"
3381 " to read MapBlock version");
3383 /*u32 block_size = MapBlock::serializedLength(version);
3384 SharedBuffer<u8> data(block_size);
3385 is.read((char*)*data, block_size);*/
3387 // This will always return a sector because we're the server
3388 //MapSector *sector = emergeSector(p2d);
3390 MapBlock *block = NULL;
3391 bool created_new = false;
3392 block = sector->getBlockNoCreateNoEx(p3d.Y);
3395 block = sector->createBlankBlockNoInsert(p3d.Y);
3400 block->deSerialize(is, version, true);
3402 // If it's a new block, insert it to the map
3404 sector->insertBlock(block);
3407 Save blocks loaded in old format in new format
3410 if(version < SER_FMT_VER_HIGHEST || save_after_load)
3414 // Should be in database now, so delete the old file
3415 fs::RecursiveDelete(fullpath);
3418 // We just loaded it from the disk, so it's up-to-date.
3419 block->resetModified();
3422 catch(SerializationError &e)
3424 infostream<<"WARNING: Invalid block data on disk "
3425 <<"fullpath="<<fullpath
3426 <<" (SerializationError). "
3427 <<"what()="<<e.what()
3429 //" Ignoring. A new one will be generated.
3432 // TODO: Backup file; name is in fullpath.
3436 void ServerMap::loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load)
3438 DSTACK(__FUNCTION_NAME);
3441 std::istringstream is(*blob, std::ios_base::binary);
3443 u8 version = SER_FMT_VER_INVALID;
3444 is.read((char*)&version, 1);
3447 throw SerializationError("ServerMap::loadBlock(): Failed"
3448 " to read MapBlock version");
3450 /*u32 block_size = MapBlock::serializedLength(version);
3451 SharedBuffer<u8> data(block_size);
3452 is.read((char*)*data, block_size);*/
3454 // This will always return a sector because we're the server
3455 //MapSector *sector = emergeSector(p2d);
3457 MapBlock *block = NULL;
3458 bool created_new = false;
3459 block = sector->getBlockNoCreateNoEx(p3d.Y);
3462 block = sector->createBlankBlockNoInsert(p3d.Y);
3467 block->deSerialize(is, version, true);
3469 // If it's a new block, insert it to the map
3471 sector->insertBlock(block);
3474 Save blocks loaded in old format in new format
3477 //if(version < SER_FMT_VER_HIGHEST || save_after_load)
3478 // Only save if asked to; no need to update version
3482 // We just loaded it from, so it's up-to-date.
3483 block->resetModified();
3486 catch(SerializationError &e)
3488 errorstream<<"Invalid block data in database"
3489 <<" ("<<p3d.X<<","<<p3d.Y<<","<<p3d.Z<<")"
3490 <<" (SerializationError): "<<e.what()<<std::endl;
3492 // TODO: Block should be marked as invalid in memory so that it is
3493 // not touched but the game can run
3495 if(g_settings->getBool("ignore_world_load_errors")){
3496 errorstream<<"Ignoring block load error. Duck and cover! "
3497 <<"(ignore_world_load_errors)"<<std::endl;
3499 throw SerializationError("Invalid block data in database");
3505 MapBlock* ServerMap::loadBlock(v3s16 blockpos)
3507 DSTACK(__FUNCTION_NAME);
3509 v2s16 p2d(blockpos.X, blockpos.Z);
3511 if(!loadFromFolders()) {
3514 if(sqlite3_bind_int64(m_database_read, 1, getBlockAsInteger(blockpos)) != SQLITE_OK)
3515 infostream<<"WARNING: Could not bind block position for load: "
3516 <<sqlite3_errmsg(m_database)<<std::endl;
3517 if(sqlite3_step(m_database_read) == SQLITE_ROW) {
3519 Make sure sector is loaded
3521 MapSector *sector = createSector(p2d);
3526 const char * data = (const char *)sqlite3_column_blob(m_database_read, 0);
3527 size_t len = sqlite3_column_bytes(m_database_read, 0);
3529 std::string datastr(data, len);
3531 loadBlock(&datastr, blockpos, sector, false);
3533 sqlite3_step(m_database_read);
3534 // We should never get more than 1 row, so ok to reset
3535 sqlite3_reset(m_database_read);
3537 return getBlockNoCreateNoEx(blockpos);
3539 sqlite3_reset(m_database_read);
3541 // Not found in database, try the files
3544 // The directory layout we're going to load from.
3545 // 1 - original sectors/xxxxzzzz/
3546 // 2 - new sectors2/xxx/zzz/
3547 // If we load from anything but the latest structure, we will
3548 // immediately save to the new one, and remove the old.
3550 std::string sectordir1 = getSectorDir(p2d, 1);
3551 std::string sectordir;
3552 if(fs::PathExists(sectordir1))
3554 sectordir = sectordir1;
3559 sectordir = getSectorDir(p2d, 2);
3563 Make sure sector is loaded
3565 MapSector *sector = getSectorNoGenerateNoEx(p2d);
3569 sector = loadSectorMeta(sectordir, loadlayout != 2);
3571 catch(InvalidFilenameException &e)
3575 catch(FileNotGoodException &e)
3579 catch(std::exception &e)
3586 Make sure file exists
3589 std::string blockfilename = getBlockFilename(blockpos);
3590 if(fs::PathExists(sectordir+DIR_DELIM+blockfilename) == false)
3594 Load block and save it to the database
3596 loadBlock(sectordir, blockfilename, sector, true);
3597 return getBlockNoCreateNoEx(blockpos);
3600 void ServerMap::PrintInfo(std::ostream &out)
3609 MapVoxelManipulator::MapVoxelManipulator(Map *map)
3614 MapVoxelManipulator::~MapVoxelManipulator()
3616 /*infostream<<"MapVoxelManipulator: blocks: "<<m_loaded_blocks.size()
3620 void MapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
3622 TimeTaker timer1("emerge", &emerge_time);
3624 // Units of these are MapBlocks
3625 v3s16 p_min = getNodeBlockPos(a.MinEdge);
3626 v3s16 p_max = getNodeBlockPos(a.MaxEdge);
3628 VoxelArea block_area_nodes
3629 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3631 addArea(block_area_nodes);
3633 for(s32 z=p_min.Z; z<=p_max.Z; z++)
3634 for(s32 y=p_min.Y; y<=p_max.Y; y++)
3635 for(s32 x=p_min.X; x<=p_max.X; x++)
3638 core::map<v3s16, bool>::Node *n;
3639 n = m_loaded_blocks.find(p);
3643 bool block_data_inexistent = false;
3646 TimeTaker timer1("emerge load", &emerge_load_time);
3648 /*infostream<<"Loading block (caller_id="<<caller_id<<")"
3649 <<" ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3651 a.print(infostream);
3652 infostream<<std::endl;*/
3654 MapBlock *block = m_map->getBlockNoCreate(p);
3655 if(block->isDummy())
3656 block_data_inexistent = true;
3658 block->copyTo(*this);
3660 catch(InvalidPositionException &e)
3662 block_data_inexistent = true;
3665 if(block_data_inexistent)
3667 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3668 // Fill with VOXELFLAG_INEXISTENT
3669 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
3670 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
3672 s32 i = m_area.index(a.MinEdge.X,y,z);
3673 memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
3677 m_loaded_blocks.insert(p, !block_data_inexistent);
3680 //infostream<<"emerge done"<<std::endl;
3684 SUGG: Add an option to only update eg. water and air nodes.
3685 This will make it interfere less with important stuff if
3688 void MapVoxelManipulator::blitBack
3689 (core::map<v3s16, MapBlock*> & modified_blocks)
3691 if(m_area.getExtent() == v3s16(0,0,0))
3694 //TimeTaker timer1("blitBack");
3696 /*infostream<<"blitBack(): m_loaded_blocks.size()="
3697 <<m_loaded_blocks.size()<<std::endl;*/
3700 Initialize block cache
3702 v3s16 blockpos_last;
3703 MapBlock *block = NULL;
3704 bool block_checked_in_modified = false;
3706 for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
3707 for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
3708 for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
3712 u8 f = m_flags[m_area.index(p)];
3713 if(f & (VOXELFLAG_NOT_LOADED|VOXELFLAG_INEXISTENT))
3716 MapNode &n = m_data[m_area.index(p)];
3718 v3s16 blockpos = getNodeBlockPos(p);
3723 if(block == NULL || blockpos != blockpos_last){
3724 block = m_map->getBlockNoCreate(blockpos);
3725 blockpos_last = blockpos;
3726 block_checked_in_modified = false;
3729 // Calculate relative position in block
3730 v3s16 relpos = p - blockpos * MAP_BLOCKSIZE;
3732 // Don't continue if nothing has changed here
3733 if(block->getNode(relpos) == n)
3736 //m_map->setNode(m_area.MinEdge + p, n);
3737 block->setNode(relpos, n);
3740 Make sure block is in modified_blocks
3742 if(block_checked_in_modified == false)
3744 modified_blocks[blockpos] = block;
3745 block_checked_in_modified = true;
3748 catch(InvalidPositionException &e)
3754 ManualMapVoxelManipulator::ManualMapVoxelManipulator(Map *map):
3755 MapVoxelManipulator(map),
3756 m_create_area(false)
3760 ManualMapVoxelManipulator::~ManualMapVoxelManipulator()
3764 void ManualMapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
3766 // Just create the area so that it can be pointed to
3767 VoxelManipulator::emerge(a, caller_id);
3770 void ManualMapVoxelManipulator::initialEmerge(
3771 v3s16 blockpos_min, v3s16 blockpos_max)
3773 TimeTaker timer1("initialEmerge", &emerge_time);
3775 // Units of these are MapBlocks
3776 v3s16 p_min = blockpos_min;
3777 v3s16 p_max = blockpos_max;
3779 VoxelArea block_area_nodes
3780 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3782 u32 size_MB = block_area_nodes.getVolume()*4/1000000;
3785 infostream<<"initialEmerge: area: ";
3786 block_area_nodes.print(infostream);
3787 infostream<<" ("<<size_MB<<"MB)";
3788 infostream<<std::endl;
3791 addArea(block_area_nodes);
3793 for(s32 z=p_min.Z; z<=p_max.Z; z++)
3794 for(s32 y=p_min.Y; y<=p_max.Y; y++)
3795 for(s32 x=p_min.X; x<=p_max.X; x++)
3798 core::map<v3s16, bool>::Node *n;
3799 n = m_loaded_blocks.find(p);
3803 bool block_data_inexistent = false;
3806 TimeTaker timer1("emerge load", &emerge_load_time);
3808 MapBlock *block = m_map->getBlockNoCreate(p);
3809 if(block->isDummy())
3810 block_data_inexistent = true;
3812 block->copyTo(*this);
3814 catch(InvalidPositionException &e)
3816 block_data_inexistent = true;
3819 if(block_data_inexistent)
3822 Mark area inexistent
3824 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
3825 // Fill with VOXELFLAG_INEXISTENT
3826 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
3827 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
3829 s32 i = m_area.index(a.MinEdge.X,y,z);
3830 memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
3834 m_loaded_blocks.insert(p, !block_data_inexistent);
3838 void ManualMapVoxelManipulator::blitBackAll(
3839 core::map<v3s16, MapBlock*> * modified_blocks)
3841 if(m_area.getExtent() == v3s16(0,0,0))
3845 Copy data of all blocks
3847 for(core::map<v3s16, bool>::Iterator
3848 i = m_loaded_blocks.getIterator();
3849 i.atEnd() == false; i++)
3851 v3s16 p = i.getNode()->getKey();
3852 bool existed = i.getNode()->getValue();
3853 if(existed == false)
3855 // The Great Bug was found using this
3856 /*infostream<<"ManualMapVoxelManipulator::blitBackAll: "
3857 <<"Inexistent ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3861 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
3864 infostream<<"WARNING: "<<__FUNCTION_NAME
3865 <<": got NULL block "
3866 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
3871 block->copyFrom(*this);
3874 modified_blocks->insert(p, block);