3 Copyright (C) 2010-2013 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"
25 #include "voxelalgorithms.h"
27 #include "serialization.h"
28 #include "nodemetadata.h"
34 #include "util/directiontables.h"
35 #include "util/basic_macros.h"
36 #include "rollback_interface.h"
37 #include "environment.h"
38 #include "reflowscan.h"
40 #include "mapgen_v6.h"
45 #include "database-dummy.h"
46 #include "database-sqlite3.h"
47 #include "script/scripting_server.h"
51 #include "database-leveldb.h"
54 #include "database-redis.h"
57 #include "database-postgresql.h"
65 Map::Map(std::ostream &dout, IGameDef *gamedef):
68 m_nodedef(gamedef->ndef())
77 for(std::map<v2s16, MapSector*>::iterator i = m_sectors.begin();
78 i != m_sectors.end(); ++i)
84 void Map::addEventReceiver(MapEventReceiver *event_receiver)
86 m_event_receivers.insert(event_receiver);
89 void Map::removeEventReceiver(MapEventReceiver *event_receiver)
91 m_event_receivers.erase(event_receiver);
94 void Map::dispatchEvent(MapEditEvent *event)
96 for(std::set<MapEventReceiver*>::iterator
97 i = m_event_receivers.begin();
98 i != m_event_receivers.end(); ++i)
100 (*i)->onMapEditEvent(event);
104 MapSector * Map::getSectorNoGenerateNoExNoLock(v2s16 p)
106 if(m_sector_cache != NULL && p == m_sector_cache_p){
107 MapSector * sector = m_sector_cache;
111 std::map<v2s16, MapSector*>::iterator n = m_sectors.find(p);
113 if(n == m_sectors.end())
116 MapSector *sector = n->second;
118 // Cache the last result
119 m_sector_cache_p = p;
120 m_sector_cache = sector;
125 MapSector * Map::getSectorNoGenerateNoEx(v2s16 p)
127 return getSectorNoGenerateNoExNoLock(p);
130 MapSector * Map::getSectorNoGenerate(v2s16 p)
132 MapSector *sector = getSectorNoGenerateNoEx(p);
134 throw InvalidPositionException();
139 MapBlock * Map::getBlockNoCreateNoEx(v3s16 p3d)
141 v2s16 p2d(p3d.X, p3d.Z);
142 MapSector * sector = getSectorNoGenerateNoEx(p2d);
145 MapBlock *block = sector->getBlockNoCreateNoEx(p3d.Y);
149 MapBlock * Map::getBlockNoCreate(v3s16 p3d)
151 MapBlock *block = getBlockNoCreateNoEx(p3d);
153 throw InvalidPositionException();
157 bool Map::isNodeUnderground(v3s16 p)
159 v3s16 blockpos = getNodeBlockPos(p);
161 MapBlock * block = getBlockNoCreate(blockpos);
162 return block->getIsUnderground();
164 catch(InvalidPositionException &e)
170 bool Map::isValidPosition(v3s16 p)
172 v3s16 blockpos = getNodeBlockPos(p);
173 MapBlock *block = getBlockNoCreateNoEx(blockpos);
174 return (block != NULL);
177 // Returns a CONTENT_IGNORE node if not found
178 MapNode Map::getNodeNoEx(v3s16 p, bool *is_valid_position)
180 v3s16 blockpos = getNodeBlockPos(p);
181 MapBlock *block = getBlockNoCreateNoEx(blockpos);
183 if (is_valid_position != NULL)
184 *is_valid_position = false;
185 return MapNode(CONTENT_IGNORE);
188 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
190 MapNode node = block->getNodeNoCheck(relpos, &is_valid_p);
191 if (is_valid_position != NULL)
192 *is_valid_position = is_valid_p;
198 // throws InvalidPositionException if not found
199 // TODO: Now this is deprecated, getNodeNoEx should be renamed
200 MapNode Map::getNode(v3s16 p)
202 v3s16 blockpos = getNodeBlockPos(p);
203 MapBlock *block = getBlockNoCreateNoEx(blockpos);
205 throw InvalidPositionException();
206 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
207 bool is_valid_position;
208 MapNode node = block->getNodeNoCheck(relpos, &is_valid_position);
209 if (!is_valid_position)
210 throw InvalidPositionException();
215 // throws InvalidPositionException if not found
216 void Map::setNode(v3s16 p, MapNode & n)
218 v3s16 blockpos = getNodeBlockPos(p);
219 MapBlock *block = getBlockNoCreate(blockpos);
220 v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
221 // Never allow placing CONTENT_IGNORE, it fucks up stuff
222 if(n.getContent() == CONTENT_IGNORE){
224 errorstream<<"Map::setNode(): Not allowing to place CONTENT_IGNORE"
225 <<" while trying to replace \""
226 <<m_nodedef->get(block->getNodeNoCheck(relpos, &temp_bool)).name
227 <<"\" at "<<PP(p)<<" (block "<<PP(blockpos)<<")"<<std::endl;
228 debug_stacks_print_to(infostream);
231 block->setNodeNoCheck(relpos, n);
234 void Map::addNodeAndUpdate(v3s16 p, MapNode n,
235 std::map<v3s16, MapBlock*> &modified_blocks,
236 bool remove_metadata)
238 // Collect old node for rollback
239 RollbackNode rollback_oldnode(this, p, m_gamedef);
241 // This is needed for updating the lighting
242 MapNode oldnode = getNodeNoEx(p);
244 // Remove node metadata
245 if (remove_metadata) {
246 removeNodeMetadata(p);
249 // Set the node on the map
250 // Ignore light (because calling voxalgo::update_lighting_nodes)
251 n.setLight(LIGHTBANK_DAY, 0, m_nodedef);
252 n.setLight(LIGHTBANK_NIGHT, 0, m_nodedef);
256 std::vector<std::pair<v3s16, MapNode> > oldnodes;
257 oldnodes.push_back(std::pair<v3s16, MapNode>(p, oldnode));
258 voxalgo::update_lighting_nodes(this, oldnodes, modified_blocks);
260 for(std::map<v3s16, MapBlock*>::iterator
261 i = modified_blocks.begin();
262 i != modified_blocks.end(); ++i)
264 i->second->expireDayNightDiff();
267 // Report for rollback
268 if(m_gamedef->rollback())
270 RollbackNode rollback_newnode(this, p, m_gamedef);
271 RollbackAction action;
272 action.setSetNode(p, rollback_oldnode, rollback_newnode);
273 m_gamedef->rollback()->reportAction(action);
277 Add neighboring liquid nodes and this node to transform queue.
278 (it's vital for the node itself to get updated last, if it was removed.)
281 v3s16(0,0,1), // back
283 v3s16(1,0,0), // right
284 v3s16(0,0,-1), // front
285 v3s16(0,-1,0), // bottom
286 v3s16(-1,0,0), // left
287 v3s16(0,0,0), // self
289 for(u16 i=0; i<7; i++)
291 v3s16 p2 = p + dirs[i];
293 bool is_valid_position;
294 MapNode n2 = getNodeNoEx(p2, &is_valid_position);
295 if(is_valid_position &&
296 (m_nodedef->get(n2).isLiquid() ||
297 n2.getContent() == CONTENT_AIR))
298 m_transforming_liquid.push_back(p2);
302 void Map::removeNodeAndUpdate(v3s16 p,
303 std::map<v3s16, MapBlock*> &modified_blocks)
305 addNodeAndUpdate(p, MapNode(CONTENT_AIR), modified_blocks, true);
308 bool Map::addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata)
311 event.type = remove_metadata ? MEET_ADDNODE : MEET_SWAPNODE;
315 bool succeeded = true;
317 std::map<v3s16, MapBlock*> modified_blocks;
318 addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
320 // Copy modified_blocks to event
321 for(std::map<v3s16, MapBlock*>::iterator
322 i = modified_blocks.begin();
323 i != modified_blocks.end(); ++i)
325 event.modified_blocks.insert(i->first);
328 catch(InvalidPositionException &e){
332 dispatchEvent(&event);
337 bool Map::removeNodeWithEvent(v3s16 p)
340 event.type = MEET_REMOVENODE;
343 bool succeeded = true;
345 std::map<v3s16, MapBlock*> modified_blocks;
346 removeNodeAndUpdate(p, modified_blocks);
348 // Copy modified_blocks to event
349 for(std::map<v3s16, MapBlock*>::iterator
350 i = modified_blocks.begin();
351 i != modified_blocks.end(); ++i)
353 event.modified_blocks.insert(i->first);
356 catch(InvalidPositionException &e){
360 dispatchEvent(&event);
365 bool Map::getDayNightDiff(v3s16 blockpos)
368 v3s16 p = blockpos + v3s16(0,0,0);
369 MapBlock *b = getBlockNoCreate(p);
370 if(b->getDayNightDiff())
373 catch(InvalidPositionException &e){}
376 v3s16 p = blockpos + v3s16(-1,0,0);
377 MapBlock *b = getBlockNoCreate(p);
378 if(b->getDayNightDiff())
381 catch(InvalidPositionException &e){}
383 v3s16 p = blockpos + v3s16(0,-1,0);
384 MapBlock *b = getBlockNoCreate(p);
385 if(b->getDayNightDiff())
388 catch(InvalidPositionException &e){}
390 v3s16 p = blockpos + v3s16(0,0,-1);
391 MapBlock *b = getBlockNoCreate(p);
392 if(b->getDayNightDiff())
395 catch(InvalidPositionException &e){}
398 v3s16 p = blockpos + v3s16(1,0,0);
399 MapBlock *b = getBlockNoCreate(p);
400 if(b->getDayNightDiff())
403 catch(InvalidPositionException &e){}
405 v3s16 p = blockpos + v3s16(0,1,0);
406 MapBlock *b = getBlockNoCreate(p);
407 if(b->getDayNightDiff())
410 catch(InvalidPositionException &e){}
412 v3s16 p = blockpos + v3s16(0,0,1);
413 MapBlock *b = getBlockNoCreate(p);
414 if(b->getDayNightDiff())
417 catch(InvalidPositionException &e){}
422 struct TimeOrderedMapBlock {
426 TimeOrderedMapBlock(MapSector *sect, MapBlock *block) :
431 bool operator<(const TimeOrderedMapBlock &b) const
433 return block->getUsageTimer() < b.block->getUsageTimer();
440 void Map::timerUpdate(float dtime, float unload_timeout, u32 max_loaded_blocks,
441 std::vector<v3s16> *unloaded_blocks)
443 bool save_before_unloading = (mapType() == MAPTYPE_SERVER);
445 // Profile modified reasons
446 Profiler modprofiler;
448 std::vector<v2s16> sector_deletion_queue;
449 u32 deleted_blocks_count = 0;
450 u32 saved_blocks_count = 0;
451 u32 block_count_all = 0;
455 // If there is no practical limit, we spare creation of mapblock_queue
456 if (max_loaded_blocks == U32_MAX) {
457 for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
458 si != m_sectors.end(); ++si) {
459 MapSector *sector = si->second;
461 bool all_blocks_deleted = true;
464 sector->getBlocks(blocks);
466 for (MapBlockVect::iterator i = blocks.begin();
467 i != blocks.end(); ++i) {
468 MapBlock *block = (*i);
470 block->incrementUsageTimer(dtime);
472 if (block->refGet() == 0
473 && block->getUsageTimer() > unload_timeout) {
474 v3s16 p = block->getPos();
477 if (block->getModified() != MOD_STATE_CLEAN
478 && save_before_unloading) {
479 modprofiler.add(block->getModifiedReasonString(), 1);
480 if (!saveBlock(block))
482 saved_blocks_count++;
485 // Delete from memory
486 sector->deleteBlock(block);
489 unloaded_blocks->push_back(p);
491 deleted_blocks_count++;
493 all_blocks_deleted = false;
498 if (all_blocks_deleted) {
499 sector_deletion_queue.push_back(si->first);
503 std::priority_queue<TimeOrderedMapBlock> mapblock_queue;
504 for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
505 si != m_sectors.end(); ++si) {
506 MapSector *sector = si->second;
509 sector->getBlocks(blocks);
511 for(MapBlockVect::iterator i = blocks.begin();
512 i != blocks.end(); ++i) {
513 MapBlock *block = (*i);
515 block->incrementUsageTimer(dtime);
516 mapblock_queue.push(TimeOrderedMapBlock(sector, block));
519 block_count_all = mapblock_queue.size();
520 // Delete old blocks, and blocks over the limit from the memory
521 while (!mapblock_queue.empty() && (mapblock_queue.size() > max_loaded_blocks
522 || mapblock_queue.top().block->getUsageTimer() > unload_timeout)) {
523 TimeOrderedMapBlock b = mapblock_queue.top();
524 mapblock_queue.pop();
526 MapBlock *block = b.block;
528 if (block->refGet() != 0)
531 v3s16 p = block->getPos();
534 if (block->getModified() != MOD_STATE_CLEAN && save_before_unloading) {
535 modprofiler.add(block->getModifiedReasonString(), 1);
536 if (!saveBlock(block))
538 saved_blocks_count++;
541 // Delete from memory
542 b.sect->deleteBlock(block);
545 unloaded_blocks->push_back(p);
547 deleted_blocks_count++;
550 // Delete empty sectors
551 for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
552 si != m_sectors.end(); ++si) {
553 if (si->second->empty()) {
554 sector_deletion_queue.push_back(si->first);
560 // Finally delete the empty sectors
561 deleteSectors(sector_deletion_queue);
563 if(deleted_blocks_count != 0)
565 PrintInfo(infostream); // ServerMap/ClientMap:
566 infostream<<"Unloaded "<<deleted_blocks_count
567 <<" blocks from memory";
568 if(save_before_unloading)
569 infostream<<", of which "<<saved_blocks_count<<" were written";
570 infostream<<", "<<block_count_all<<" blocks in memory";
571 infostream<<"."<<std::endl;
572 if(saved_blocks_count != 0){
573 PrintInfo(infostream); // ServerMap/ClientMap:
574 infostream<<"Blocks modified by: "<<std::endl;
575 modprofiler.print(infostream);
580 void Map::unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks)
582 timerUpdate(0.0, -1.0, 0, unloaded_blocks);
585 void Map::deleteSectors(std::vector<v2s16> §orList)
587 for(std::vector<v2s16>::iterator j = sectorList.begin();
588 j != sectorList.end(); ++j) {
589 MapSector *sector = m_sectors[*j];
590 // If sector is in sector cache, remove it from there
591 if(m_sector_cache == sector)
592 m_sector_cache = NULL;
593 // Remove from map and delete
599 void Map::PrintInfo(std::ostream &out)
604 #define WATER_DROP_BOOST 4
611 struct NodeNeighbor {
621 NodeNeighbor(const MapNode &node, NeighborType n_type, v3s16 pos)
628 void Map::transforming_liquid_add(v3s16 p) {
629 m_transforming_liquid.push_back(p);
632 s32 Map::transforming_liquid_size() {
633 return m_transforming_liquid.size();
636 void Map::transformLiquids(std::map<v3s16, MapBlock*> &modified_blocks,
637 ServerEnvironment *env)
639 DSTACK(FUNCTION_NAME);
640 //TimeTaker timer("transformLiquids()");
643 u32 initial_size = m_transforming_liquid.size();
645 /*if(initial_size != 0)
646 infostream<<"transformLiquids(): initial_size="<<initial_size<<std::endl;*/
648 // list of nodes that due to viscosity have not reached their max level height
649 std::deque<v3s16> must_reflow;
651 std::vector<std::pair<v3s16, MapNode> > changed_nodes;
653 u32 liquid_loop_max = g_settings->getS32("liquid_loop_max");
654 u32 loop_max = liquid_loop_max;
658 /* If liquid_loop_max is not keeping up with the queue size increase
659 * loop_max up to a maximum of liquid_loop_max * dedicated_server_step.
661 if (m_transforming_liquid.size() > loop_max * 2) {
663 float server_step = g_settings->getFloat("dedicated_server_step");
664 if (m_transforming_liquid_loop_count_multiplier - 1.0 < server_step)
665 m_transforming_liquid_loop_count_multiplier *= 1.0 + server_step / 10;
667 m_transforming_liquid_loop_count_multiplier = 1.0;
670 loop_max *= m_transforming_liquid_loop_count_multiplier;
673 while (m_transforming_liquid.size() != 0)
675 // This should be done here so that it is done when continue is used
676 if (loopcount >= initial_size || loopcount >= loop_max)
681 Get a queued transforming liquid node
683 v3s16 p0 = m_transforming_liquid.front();
684 m_transforming_liquid.pop_front();
686 MapNode n0 = getNodeNoEx(p0);
689 Collect information about current node
691 s8 liquid_level = -1;
692 // The liquid node which will be placed there if
693 // the liquid flows into this node.
694 content_t liquid_kind = CONTENT_IGNORE;
695 // The node which will be placed there if liquid
696 // can't flow into this node.
697 content_t floodable_node = CONTENT_AIR;
698 const ContentFeatures &cf = m_nodedef->get(n0);
699 LiquidType liquid_type = cf.liquid_type;
700 switch (liquid_type) {
702 liquid_level = LIQUID_LEVEL_SOURCE;
703 liquid_kind = m_nodedef->getId(cf.liquid_alternative_flowing);
706 liquid_level = (n0.param2 & LIQUID_LEVEL_MASK);
707 liquid_kind = n0.getContent();
710 // if this node is 'floodable', it *could* be transformed
711 // into a liquid, otherwise, continue with the next node.
714 floodable_node = n0.getContent();
715 liquid_kind = CONTENT_AIR;
720 Collect information about the environment
722 const v3s16 *dirs = g_6dirs;
723 NodeNeighbor sources[6]; // surrounding sources
725 NodeNeighbor flows[6]; // surrounding flowing liquid nodes
727 NodeNeighbor airs[6]; // surrounding air
729 NodeNeighbor neutrals[6]; // nodes that are solid or another kind of liquid
730 int num_neutrals = 0;
731 bool flowing_down = false;
732 bool ignored_sources = false;
733 for (u16 i = 0; i < 6; i++) {
734 NeighborType nt = NEIGHBOR_SAME_LEVEL;
743 v3s16 npos = p0 + dirs[i];
744 NodeNeighbor nb(getNodeNoEx(npos), nt, npos);
745 const ContentFeatures &cfnb = m_nodedef->get(nb.n);
746 switch (m_nodedef->get(nb.n.getContent()).liquid_type) {
748 if (cfnb.floodable) {
749 airs[num_airs++] = nb;
750 // if the current node is a water source the neighbor
751 // should be enqueded for transformation regardless of whether the
752 // current node changes or not.
753 if (nb.t != NEIGHBOR_UPPER && liquid_type != LIQUID_NONE)
754 m_transforming_liquid.push_back(npos);
755 // if the current node happens to be a flowing node, it will start to flow down here.
756 if (nb.t == NEIGHBOR_LOWER)
759 neutrals[num_neutrals++] = nb;
760 if (nb.n.getContent() == CONTENT_IGNORE) {
761 // If node below is ignore prevent water from
762 // spreading outwards and otherwise prevent from
763 // flowing away as ignore node might be the source
764 if (nb.t == NEIGHBOR_LOWER)
767 ignored_sources = true;
772 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
773 if (liquid_kind == CONTENT_AIR)
774 liquid_kind = m_nodedef->getId(cfnb.liquid_alternative_flowing);
775 if (m_nodedef->getId(cfnb.liquid_alternative_flowing) != liquid_kind) {
776 neutrals[num_neutrals++] = nb;
778 // Do not count bottom source, it will screw things up
780 sources[num_sources++] = nb;
784 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
785 if (liquid_kind == CONTENT_AIR)
786 liquid_kind = m_nodedef->getId(cfnb.liquid_alternative_flowing);
787 if (m_nodedef->getId(cfnb.liquid_alternative_flowing) != liquid_kind) {
788 neutrals[num_neutrals++] = nb;
790 flows[num_flows++] = nb;
791 if (nb.t == NEIGHBOR_LOWER)
799 decide on the type (and possibly level) of the current node
801 content_t new_node_content;
802 s8 new_node_level = -1;
803 s8 max_node_level = -1;
805 u8 range = m_nodedef->get(liquid_kind).liquid_range;
806 if (range > LIQUID_LEVEL_MAX + 1)
807 range = LIQUID_LEVEL_MAX + 1;
809 if ((num_sources >= 2 && m_nodedef->get(liquid_kind).liquid_renewable) || liquid_type == LIQUID_SOURCE) {
810 // liquid_kind will be set to either the flowing alternative of the node (if it's a liquid)
811 // or the flowing alternative of the first of the surrounding sources (if it's air), so
812 // it's perfectly safe to use liquid_kind here to determine the new node content.
813 new_node_content = m_nodedef->getId(m_nodedef->get(liquid_kind).liquid_alternative_source);
814 } else if (num_sources >= 1 && sources[0].t != NEIGHBOR_LOWER) {
815 // liquid_kind is set properly, see above
816 max_node_level = new_node_level = LIQUID_LEVEL_MAX;
817 if (new_node_level >= (LIQUID_LEVEL_MAX + 1 - range))
818 new_node_content = liquid_kind;
820 new_node_content = floodable_node;
821 } else if (ignored_sources && liquid_level >= 0) {
822 // Maybe there are neighbouring sources that aren't loaded yet
823 // so prevent flowing away.
824 new_node_level = liquid_level;
825 new_node_content = liquid_kind;
827 // no surrounding sources, so get the maximum level that can flow into this node
828 for (u16 i = 0; i < num_flows; i++) {
829 u8 nb_liquid_level = (flows[i].n.param2 & LIQUID_LEVEL_MASK);
830 switch (flows[i].t) {
832 if (nb_liquid_level + WATER_DROP_BOOST > max_node_level) {
833 max_node_level = LIQUID_LEVEL_MAX;
834 if (nb_liquid_level + WATER_DROP_BOOST < LIQUID_LEVEL_MAX)
835 max_node_level = nb_liquid_level + WATER_DROP_BOOST;
836 } else if (nb_liquid_level > max_node_level) {
837 max_node_level = nb_liquid_level;
842 case NEIGHBOR_SAME_LEVEL:
843 if ((flows[i].n.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK &&
844 nb_liquid_level > 0 && nb_liquid_level - 1 > max_node_level)
845 max_node_level = nb_liquid_level - 1;
850 u8 viscosity = m_nodedef->get(liquid_kind).liquid_viscosity;
851 if (viscosity > 1 && max_node_level != liquid_level) {
852 // amount to gain, limited by viscosity
853 // must be at least 1 in absolute value
854 s8 level_inc = max_node_level - liquid_level;
855 if (level_inc < -viscosity || level_inc > viscosity)
856 new_node_level = liquid_level + level_inc/viscosity;
857 else if (level_inc < 0)
858 new_node_level = liquid_level - 1;
859 else if (level_inc > 0)
860 new_node_level = liquid_level + 1;
861 if (new_node_level != max_node_level)
862 must_reflow.push_back(p0);
864 new_node_level = max_node_level;
867 if (max_node_level >= (LIQUID_LEVEL_MAX + 1 - range))
868 new_node_content = liquid_kind;
870 new_node_content = floodable_node;
875 check if anything has changed. if not, just continue with the next node.
877 if (new_node_content == n0.getContent() &&
878 (m_nodedef->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
879 ((n0.param2 & LIQUID_LEVEL_MASK) == (u8)new_node_level &&
880 ((n0.param2 & LIQUID_FLOW_DOWN_MASK) == LIQUID_FLOW_DOWN_MASK)
886 update the current node
889 //bool flow_down_enabled = (flowing_down && ((n0.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK));
890 if (m_nodedef->get(new_node_content).liquid_type == LIQUID_FLOWING) {
891 // set level to last 3 bits, flowing down bit to 4th bit
892 n0.param2 = (flowing_down ? LIQUID_FLOW_DOWN_MASK : 0x00) | (new_node_level & LIQUID_LEVEL_MASK);
894 // set the liquid level and flow bit to 0
895 n0.param2 = ~(LIQUID_LEVEL_MASK | LIQUID_FLOW_DOWN_MASK);
899 n0.setContent(new_node_content);
901 // on_flood() the node
902 if (floodable_node != CONTENT_AIR) {
903 if (env->getScriptIface()->node_on_flood(p0, n00, n0))
907 // Ignore light (because calling voxalgo::update_lighting_nodes)
908 n0.setLight(LIGHTBANK_DAY, 0, m_nodedef);
909 n0.setLight(LIGHTBANK_NIGHT, 0, m_nodedef);
911 // Find out whether there is a suspect for this action
913 if (m_gamedef->rollback())
914 suspect = m_gamedef->rollback()->getSuspect(p0, 83, 1);
916 if (m_gamedef->rollback() && !suspect.empty()) {
918 RollbackScopeActor rollback_scope(m_gamedef->rollback(), suspect, true);
919 // Get old node for rollback
920 RollbackNode rollback_oldnode(this, p0, m_gamedef);
924 RollbackNode rollback_newnode(this, p0, m_gamedef);
925 RollbackAction action;
926 action.setSetNode(p0, rollback_oldnode, rollback_newnode);
927 m_gamedef->rollback()->reportAction(action);
933 v3s16 blockpos = getNodeBlockPos(p0);
934 MapBlock *block = getBlockNoCreateNoEx(blockpos);
936 modified_blocks[blockpos] = block;
937 changed_nodes.push_back(std::pair<v3s16, MapNode>(p0, n00));
941 enqueue neighbors for update if neccessary
943 switch (m_nodedef->get(n0.getContent()).liquid_type) {
946 // make sure source flows into all neighboring nodes
947 for (u16 i = 0; i < num_flows; i++)
948 if (flows[i].t != NEIGHBOR_UPPER)
949 m_transforming_liquid.push_back(flows[i].p);
950 for (u16 i = 0; i < num_airs; i++)
951 if (airs[i].t != NEIGHBOR_UPPER)
952 m_transforming_liquid.push_back(airs[i].p);
955 // this flow has turned to air; neighboring flows might need to do the same
956 for (u16 i = 0; i < num_flows; i++)
957 m_transforming_liquid.push_back(flows[i].p);
961 //infostream<<"Map::transformLiquids(): loopcount="<<loopcount<<std::endl;
963 for (std::deque<v3s16>::iterator iter = must_reflow.begin(); iter != must_reflow.end(); ++iter)
964 m_transforming_liquid.push_back(*iter);
966 voxalgo::update_lighting_nodes(this, changed_nodes, modified_blocks);
969 /* ----------------------------------------------------------------------
970 * Manage the queue so that it does not grow indefinately
972 u16 time_until_purge = g_settings->getU16("liquid_queue_purge_time");
974 if (time_until_purge == 0)
975 return; // Feature disabled
977 time_until_purge *= 1000; // seconds -> milliseconds
979 u64 curr_time = porting::getTimeMs();
980 u32 prev_unprocessed = m_unprocessed_count;
981 m_unprocessed_count = m_transforming_liquid.size();
983 // if unprocessed block count is decreasing or stable
984 if (m_unprocessed_count <= prev_unprocessed) {
985 m_queue_size_timer_started = false;
987 if (!m_queue_size_timer_started)
988 m_inc_trending_up_start_time = curr_time;
989 m_queue_size_timer_started = true;
992 // Account for curr_time overflowing
993 if (m_queue_size_timer_started && m_inc_trending_up_start_time > curr_time)
994 m_queue_size_timer_started = false;
996 /* If the queue has been growing for more than liquid_queue_purge_time seconds
997 * and the number of unprocessed blocks is still > liquid_loop_max then we
998 * cannot keep up; dump the oldest blocks from the queue so that the queue
999 * has liquid_loop_max items in it
1001 if (m_queue_size_timer_started
1002 && curr_time - m_inc_trending_up_start_time > time_until_purge
1003 && m_unprocessed_count > liquid_loop_max) {
1005 size_t dump_qty = m_unprocessed_count - liquid_loop_max;
1007 infostream << "transformLiquids(): DUMPING " << dump_qty
1008 << " blocks from the queue" << std::endl;
1011 m_transforming_liquid.pop_front();
1013 m_queue_size_timer_started = false; // optimistically assume we can keep up now
1014 m_unprocessed_count = m_transforming_liquid.size();
1018 std::vector<v3s16> Map::findNodesWithMetadata(v3s16 p1, v3s16 p2)
1020 std::vector<v3s16> positions_with_meta;
1022 sortBoxVerticies(p1, p2);
1023 v3s16 bpmin = getNodeBlockPos(p1);
1024 v3s16 bpmax = getNodeBlockPos(p2);
1026 VoxelArea area(p1, p2);
1028 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
1029 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
1030 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
1031 v3s16 blockpos(x, y, z);
1033 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1035 verbosestream << "Map::getNodeMetadata(): Need to emerge "
1036 << PP(blockpos) << std::endl;
1037 block = emergeBlock(blockpos, false);
1040 infostream << "WARNING: Map::getNodeMetadata(): Block not found"
1045 v3s16 p_base = blockpos * MAP_BLOCKSIZE;
1046 std::vector<v3s16> keys = block->m_node_metadata.getAllKeys();
1047 for (size_t i = 0; i != keys.size(); i++) {
1048 v3s16 p(keys[i] + p_base);
1049 if (!area.contains(p))
1052 positions_with_meta.push_back(p);
1056 return positions_with_meta;
1059 NodeMetadata *Map::getNodeMetadata(v3s16 p)
1061 v3s16 blockpos = getNodeBlockPos(p);
1062 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1063 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1065 infostream<<"Map::getNodeMetadata(): Need to emerge "
1066 <<PP(blockpos)<<std::endl;
1067 block = emergeBlock(blockpos, false);
1070 warningstream<<"Map::getNodeMetadata(): Block not found"
1074 NodeMetadata *meta = block->m_node_metadata.get(p_rel);
1078 bool Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
1080 v3s16 blockpos = getNodeBlockPos(p);
1081 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1082 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1084 infostream<<"Map::setNodeMetadata(): Need to emerge "
1085 <<PP(blockpos)<<std::endl;
1086 block = emergeBlock(blockpos, false);
1089 warningstream<<"Map::setNodeMetadata(): Block not found"
1093 block->m_node_metadata.set(p_rel, meta);
1097 void Map::removeNodeMetadata(v3s16 p)
1099 v3s16 blockpos = getNodeBlockPos(p);
1100 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1101 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1104 warningstream<<"Map::removeNodeMetadata(): Block not found"
1108 block->m_node_metadata.remove(p_rel);
1111 NodeTimer Map::getNodeTimer(v3s16 p)
1113 v3s16 blockpos = getNodeBlockPos(p);
1114 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1115 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1117 infostream<<"Map::getNodeTimer(): Need to emerge "
1118 <<PP(blockpos)<<std::endl;
1119 block = emergeBlock(blockpos, false);
1122 warningstream<<"Map::getNodeTimer(): Block not found"
1126 NodeTimer t = block->m_node_timers.get(p_rel);
1127 NodeTimer nt(t.timeout, t.elapsed, p);
1131 void Map::setNodeTimer(const NodeTimer &t)
1133 v3s16 p = t.position;
1134 v3s16 blockpos = getNodeBlockPos(p);
1135 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1136 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1138 infostream<<"Map::setNodeTimer(): Need to emerge "
1139 <<PP(blockpos)<<std::endl;
1140 block = emergeBlock(blockpos, false);
1143 warningstream<<"Map::setNodeTimer(): Block not found"
1147 NodeTimer nt(t.timeout, t.elapsed, p_rel);
1148 block->m_node_timers.set(nt);
1151 void Map::removeNodeTimer(v3s16 p)
1153 v3s16 blockpos = getNodeBlockPos(p);
1154 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1155 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1158 warningstream<<"Map::removeNodeTimer(): Block not found"
1162 block->m_node_timers.remove(p_rel);
1165 bool Map::isOccluded(v3s16 p0, v3s16 p1, float step, float stepfac,
1166 float start_off, float end_off, u32 needed_count)
1168 float d0 = (float)BS * p0.getDistanceFrom(p1);
1170 v3f uf = v3f(u0.X, u0.Y, u0.Z) * BS;
1172 v3f p0f = v3f(p0.X, p0.Y, p0.Z) * BS;
1174 for(float s=start_off; s<d0+end_off; s+=step){
1175 v3f pf = p0f + uf * s;
1176 v3s16 p = floatToInt(pf, BS);
1177 MapNode n = getNodeNoEx(p);
1178 const ContentFeatures &f = m_nodedef->get(n);
1179 if(f.drawtype == NDT_NORMAL){
1180 // not transparent, see ContentFeature::updateTextures
1182 if(count >= needed_count)
1190 bool Map::isBlockOccluded(MapBlock *block, v3s16 cam_pos_nodes) {
1191 v3s16 cpn = block->getPos() * MAP_BLOCKSIZE;
1192 cpn += v3s16(MAP_BLOCKSIZE / 2, MAP_BLOCKSIZE / 2, MAP_BLOCKSIZE / 2);
1193 float step = BS * 1;
1194 float stepfac = 1.1;
1195 float startoff = BS * 1;
1196 // The occlusion search of 'isOccluded()' must stop short of the target
1197 // point by distance 'endoff' (end offset) to not enter the target mapblock.
1198 // For the 8 mapblock corners 'endoff' must therefore be the maximum diagonal
1199 // of a mapblock, because we must consider all view angles.
1200 // sqrt(1^2 + 1^2 + 1^2) = 1.732
1201 float endoff = -BS * MAP_BLOCKSIZE * 1.732050807569;
1202 v3s16 spn = cam_pos_nodes;
1203 s16 bs2 = MAP_BLOCKSIZE / 2 + 1;
1204 // to reduce the likelihood of falsely occluded blocks
1205 // require at least two solid blocks
1206 // this is a HACK, we should think of a more precise algorithm
1207 u32 needed_count = 2;
1210 // For the central point of the mapblock 'endoff' can be halved
1211 isOccluded(spn, cpn,
1212 step, stepfac, startoff, endoff / 2.0f, needed_count) &&
1213 isOccluded(spn, cpn + v3s16(bs2,bs2,bs2),
1214 step, stepfac, startoff, endoff, needed_count) &&
1215 isOccluded(spn, cpn + v3s16(bs2,bs2,-bs2),
1216 step, stepfac, startoff, endoff, needed_count) &&
1217 isOccluded(spn, cpn + v3s16(bs2,-bs2,bs2),
1218 step, stepfac, startoff, endoff, needed_count) &&
1219 isOccluded(spn, cpn + v3s16(bs2,-bs2,-bs2),
1220 step, stepfac, startoff, endoff, needed_count) &&
1221 isOccluded(spn, cpn + v3s16(-bs2,bs2,bs2),
1222 step, stepfac, startoff, endoff, needed_count) &&
1223 isOccluded(spn, cpn + v3s16(-bs2,bs2,-bs2),
1224 step, stepfac, startoff, endoff, needed_count) &&
1225 isOccluded(spn, cpn + v3s16(-bs2,-bs2,bs2),
1226 step, stepfac, startoff, endoff, needed_count) &&
1227 isOccluded(spn, cpn + v3s16(-bs2,-bs2,-bs2),
1228 step, stepfac, startoff, endoff, needed_count));
1234 ServerMap::ServerMap(const std::string &savedir, IGameDef *gamedef,
1235 EmergeManager *emerge):
1236 Map(dout_server, gamedef),
1237 settings_mgr(g_settings, savedir + DIR_DELIM + "map_meta.txt"),
1240 verbosestream<<FUNCTION_NAME<<std::endl;
1242 // Tell the EmergeManager about our MapSettingsManager
1243 emerge->map_settings_mgr = &settings_mgr;
1246 Try to load map; if not found, create a new one.
1249 // Determine which database backend to use
1250 std::string conf_path = savedir + DIR_DELIM + "world.mt";
1252 bool succeeded = conf.readConfigFile(conf_path.c_str());
1253 if (!succeeded || !conf.exists("backend")) {
1254 // fall back to sqlite3
1255 conf.set("backend", "sqlite3");
1257 std::string backend = conf.get("backend");
1258 dbase = createDatabase(backend, savedir, conf);
1260 if (!conf.updateConfigFile(conf_path.c_str()))
1261 errorstream << "ServerMap::ServerMap(): Failed to update world.mt!" << std::endl;
1263 m_savedir = savedir;
1264 m_map_saving_enabled = false;
1268 // If directory exists, check contents and load if possible
1269 if(fs::PathExists(m_savedir))
1271 // If directory is empty, it is safe to save into it.
1272 if(fs::GetDirListing(m_savedir).size() == 0)
1274 infostream<<"ServerMap: Empty save directory is valid."
1276 m_map_saving_enabled = true;
1281 if (settings_mgr.loadMapMeta()) {
1282 infostream << "ServerMap: Metadata loaded from "
1283 << savedir << std::endl;
1285 infostream << "ServerMap: Metadata could not be loaded "
1286 "from " << savedir << ", assuming valid save "
1287 "directory." << std::endl;
1290 m_map_saving_enabled = true;
1291 // Map loaded, not creating new one
1295 // If directory doesn't exist, it is safe to save to it
1297 m_map_saving_enabled = true;
1300 catch(std::exception &e)
1302 warningstream<<"ServerMap: Failed to load map from "<<savedir
1303 <<", exception: "<<e.what()<<std::endl;
1304 infostream<<"Please remove the map or fix it."<<std::endl;
1305 warningstream<<"Map saving will be disabled."<<std::endl;
1308 infostream<<"Initializing new map."<<std::endl;
1310 // Create zero sector
1311 emergeSector(v2s16(0,0));
1313 // Initially write whole map
1314 save(MOD_STATE_CLEAN);
1317 ServerMap::~ServerMap()
1319 verbosestream<<FUNCTION_NAME<<std::endl;
1323 if(m_map_saving_enabled)
1325 // Save only changed parts
1326 save(MOD_STATE_WRITE_AT_UNLOAD);
1327 infostream<<"ServerMap: Saved map to "<<m_savedir<<std::endl;
1331 infostream<<"ServerMap: Map not saved"<<std::endl;
1334 catch(std::exception &e)
1336 infostream<<"ServerMap: Failed to save map to "<<m_savedir
1337 <<", exception: "<<e.what()<<std::endl;
1341 Close database if it was opened
1349 core::map<v2s16, MapChunk*>::Iterator i = m_chunks.getIterator();
1350 for(; i.atEnd() == false; i++)
1352 MapChunk *chunk = i.getNode()->getValue();
1358 MapgenParams *ServerMap::getMapgenParams()
1360 // getMapgenParams() should only ever be called after Server is initialized
1361 assert(settings_mgr.mapgen_params != NULL);
1362 return settings_mgr.mapgen_params;
1365 u64 ServerMap::getSeed()
1367 return getMapgenParams()->seed;
1370 s16 ServerMap::getWaterLevel()
1372 return getMapgenParams()->water_level;
1375 bool ServerMap::saoPositionOverLimit(const v3f &p)
1377 return getMapgenParams()->saoPosOverLimit(p);
1380 bool ServerMap::blockpos_over_mapgen_limit(v3s16 p)
1382 const s16 mapgen_limit_bp = rangelim(
1383 getMapgenParams()->mapgen_limit, 0, MAX_MAP_GENERATION_LIMIT) /
1385 return p.X < -mapgen_limit_bp ||
1386 p.X > mapgen_limit_bp ||
1387 p.Y < -mapgen_limit_bp ||
1388 p.Y > mapgen_limit_bp ||
1389 p.Z < -mapgen_limit_bp ||
1390 p.Z > mapgen_limit_bp;
1393 bool ServerMap::initBlockMake(v3s16 blockpos, BlockMakeData *data)
1395 s16 csize = getMapgenParams()->chunksize;
1396 v3s16 bpmin = EmergeManager::getContainingChunk(blockpos, csize);
1397 v3s16 bpmax = bpmin + v3s16(1, 1, 1) * (csize - 1);
1399 bool enable_mapgen_debug_info = m_emerge->enable_mapgen_debug_info;
1400 EMERGE_DBG_OUT("initBlockMake(): " PP(bpmin) " - " PP(bpmax));
1402 v3s16 extra_borders(1, 1, 1);
1403 v3s16 full_bpmin = bpmin - extra_borders;
1404 v3s16 full_bpmax = bpmax + extra_borders;
1406 // Do nothing if not inside mapgen limits (+-1 because of neighbors)
1407 if (blockpos_over_mapgen_limit(full_bpmin) ||
1408 blockpos_over_mapgen_limit(full_bpmax))
1411 data->seed = getSeed();
1412 data->blockpos_min = bpmin;
1413 data->blockpos_max = bpmax;
1414 data->blockpos_requested = blockpos;
1415 data->nodedef = m_nodedef;
1418 Create the whole area of this and the neighboring blocks
1420 for (s16 x = full_bpmin.X; x <= full_bpmax.X; x++)
1421 for (s16 z = full_bpmin.Z; z <= full_bpmax.Z; z++) {
1422 v2s16 sectorpos(x, z);
1423 // Sector metadata is loaded from disk if not already loaded.
1424 ServerMapSector *sector = createSector(sectorpos);
1425 FATAL_ERROR_IF(sector == NULL, "createSector() failed");
1427 for (s16 y = full_bpmin.Y; y <= full_bpmax.Y; y++) {
1430 MapBlock *block = emergeBlock(p, false);
1431 if (block == NULL) {
1432 block = createBlock(p);
1434 // Block gets sunlight if this is true.
1435 // Refer to the map generator heuristics.
1436 bool ug = m_emerge->isBlockUnderground(p);
1437 block->setIsUnderground(ug);
1443 Now we have a big empty area.
1445 Make a ManualMapVoxelManipulator that contains this and the
1449 data->vmanip = new MMVManip(this);
1450 data->vmanip->initialEmerge(full_bpmin, full_bpmax);
1452 // Note: we may need this again at some point.
1454 // Ensure none of the blocks to be generated were marked as
1455 // containing CONTENT_IGNORE
1456 for (s16 z = blockpos_min.Z; z <= blockpos_max.Z; z++) {
1457 for (s16 y = blockpos_min.Y; y <= blockpos_max.Y; y++) {
1458 for (s16 x = blockpos_min.X; x <= blockpos_max.X; x++) {
1459 core::map<v3s16, u8>::Node *n;
1460 n = data->vmanip->m_loaded_blocks.find(v3s16(x, y, z));
1463 u8 flags = n->getValue();
1464 flags &= ~VMANIP_BLOCK_CONTAINS_CIGNORE;
1471 // Data is ready now.
1475 void ServerMap::finishBlockMake(BlockMakeData *data,
1476 std::map<v3s16, MapBlock*> *changed_blocks)
1478 v3s16 bpmin = data->blockpos_min;
1479 v3s16 bpmax = data->blockpos_max;
1481 v3s16 extra_borders(1, 1, 1);
1483 bool enable_mapgen_debug_info = m_emerge->enable_mapgen_debug_info;
1484 EMERGE_DBG_OUT("finishBlockMake(): " PP(bpmin) " - " PP(bpmax));
1487 Blit generated stuff to map
1488 NOTE: blitBackAll adds nearly everything to changed_blocks
1490 data->vmanip->blitBackAll(changed_blocks);
1492 EMERGE_DBG_OUT("finishBlockMake: changed_blocks.size()="
1493 << changed_blocks->size());
1496 Copy transforming liquid information
1498 while (data->transforming_liquid.size()) {
1499 m_transforming_liquid.push_back(data->transforming_liquid.front());
1500 data->transforming_liquid.pop_front();
1503 for (std::map<v3s16, MapBlock *>::iterator
1504 it = changed_blocks->begin();
1505 it != changed_blocks->end(); ++it) {
1506 MapBlock *block = it->second;
1510 Update day/night difference cache of the MapBlocks
1512 block->expireDayNightDiff();
1514 Set block as modified
1516 block->raiseModified(MOD_STATE_WRITE_NEEDED,
1517 MOD_REASON_EXPIRE_DAYNIGHTDIFF);
1521 Set central blocks as generated
1523 for (s16 x = bpmin.X; x <= bpmax.X; x++)
1524 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
1525 for (s16 y = bpmin.Y; y <= bpmax.Y; y++) {
1526 MapBlock *block = getBlockNoCreateNoEx(v3s16(x, y, z));
1530 block->setGenerated(true);
1534 Save changed parts of map
1535 NOTE: Will be saved later.
1537 //save(MOD_STATE_WRITE_AT_UNLOAD);
1540 ServerMapSector *ServerMap::createSector(v2s16 p2d)
1542 DSTACKF("%s: p2d=(%d,%d)",
1547 Check if it exists already in memory
1549 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
1554 Try to load it from disk (with blocks)
1556 //if(loadSectorFull(p2d) == true)
1559 Try to load metadata from disk
1562 if(loadSectorMeta(p2d) == true)
1564 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
1567 infostream<<"ServerMap::createSector(): loadSectorFull didn't make a sector"<<std::endl;
1568 throw InvalidPositionException("");
1575 Do not create over max mapgen limit
1577 const s16 max_limit_bp = MAX_MAP_GENERATION_LIMIT / MAP_BLOCKSIZE;
1578 if (p2d.X < -max_limit_bp ||
1579 p2d.X > max_limit_bp ||
1580 p2d.Y < -max_limit_bp ||
1581 p2d.Y > max_limit_bp)
1582 throw InvalidPositionException("createSector(): pos. over max mapgen limit");
1585 Generate blank sector
1588 sector = new ServerMapSector(this, p2d, m_gamedef);
1590 // Sector position on map in nodes
1591 //v2s16 nodepos2d = p2d * MAP_BLOCKSIZE;
1596 m_sectors[p2d] = sector;
1603 This is a quick-hand function for calling makeBlock().
1605 MapBlock * ServerMap::generateBlock(
1607 std::map<v3s16, MapBlock*> &modified_blocks
1610 DSTACKF("%s: p=(%d,%d,%d)", FUNCTION_NAME, p.X, p.Y, p.Z);
1612 /*infostream<<"generateBlock(): "
1613 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1616 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
1618 TimeTaker timer("generateBlock");
1620 //MapBlock *block = original_dummy;
1622 v2s16 p2d(p.X, p.Z);
1623 v2s16 p2d_nodes = p2d * MAP_BLOCKSIZE;
1626 Do not generate over-limit
1628 if(blockpos_over_limit(p))
1630 infostream<<FUNCTION_NAME<<": Block position over limit"<<std::endl;
1631 throw InvalidPositionException("generateBlock(): pos. over limit");
1635 Create block make data
1638 initBlockMake(&data, p);
1644 TimeTaker t("mapgen::make_block()");
1645 mapgen->makeChunk(&data);
1646 //mapgen::make_block(&data);
1648 if(enable_mapgen_debug_info == false)
1649 t.stop(true); // Hide output
1653 Blit data back on map, update lighting, add mobs and whatever this does
1655 finishBlockMake(&data, modified_blocks);
1660 MapBlock *block = getBlockNoCreateNoEx(p);
1668 bool erroneus_content = false;
1669 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
1670 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
1671 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
1674 MapNode n = block->getNode(p);
1675 if(n.getContent() == CONTENT_IGNORE)
1677 infostream<<"CONTENT_IGNORE at "
1678 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1680 erroneus_content = true;
1684 if(erroneus_content)
1693 Generate a completely empty block
1697 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
1698 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
1700 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
1703 n.setContent(CONTENT_AIR);
1704 block->setNode(v3s16(x0,y0,z0), n);
1710 if(enable_mapgen_debug_info == false)
1711 timer.stop(true); // Hide output
1717 MapBlock * ServerMap::createBlock(v3s16 p)
1719 DSTACKF("%s: p=(%d,%d,%d)",
1720 FUNCTION_NAME, p.X, p.Y, p.Z);
1723 Do not create over max mapgen limit
1725 if (blockpos_over_max_limit(p))
1726 throw InvalidPositionException("createBlock(): pos. over max mapgen limit");
1728 v2s16 p2d(p.X, p.Z);
1731 This will create or load a sector if not found in memory.
1732 If block exists on disk, it will be loaded.
1734 NOTE: On old save formats, this will be slow, as it generates
1735 lighting on blocks for them.
1737 ServerMapSector *sector;
1739 sector = (ServerMapSector*)createSector(p2d);
1740 assert(sector->getId() == MAPSECTOR_SERVER);
1742 catch(InvalidPositionException &e)
1744 infostream<<"createBlock: createSector() failed"<<std::endl;
1748 NOTE: This should not be done, or at least the exception
1749 should not be passed on as std::exception, because it
1750 won't be catched at all.
1752 /*catch(std::exception &e)
1754 infostream<<"createBlock: createSector() failed: "
1755 <<e.what()<<std::endl;
1760 Try to get a block from the sector
1763 MapBlock *block = sector->getBlockNoCreateNoEx(block_y);
1766 if(block->isDummy())
1771 block = sector->createBlankBlock(block_y);
1776 MapBlock * ServerMap::emergeBlock(v3s16 p, bool create_blank)
1778 DSTACKF("%s: p=(%d,%d,%d), create_blank=%d",
1780 p.X, p.Y, p.Z, create_blank);
1783 MapBlock *block = getBlockNoCreateNoEx(p);
1784 if(block && block->isDummy() == false)
1789 MapBlock *block = loadBlock(p);
1795 ServerMapSector *sector = createSector(v2s16(p.X, p.Z));
1796 MapBlock *block = sector->createBlankBlock(p.Y);
1804 std::map<v3s16, MapBlock*> modified_blocks;
1805 MapBlock *block = generateBlock(p, modified_blocks);
1809 event.type = MEET_OTHER;
1812 // Copy modified_blocks to event
1813 for(std::map<v3s16, MapBlock*>::iterator
1814 i = modified_blocks.begin();
1815 i != modified_blocks.end(); ++i)
1817 event.modified_blocks.insert(i->first);
1821 dispatchEvent(&event);
1831 MapBlock *ServerMap::getBlockOrEmerge(v3s16 p3d)
1833 MapBlock *block = getBlockNoCreateNoEx(p3d);
1835 m_emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, p3d, false);
1840 // N.B. This requires no synchronization, since data will not be modified unless
1841 // the VoxelManipulator being updated belongs to the same thread.
1842 void ServerMap::updateVManip(v3s16 pos)
1844 Mapgen *mg = m_emerge->getCurrentMapgen();
1848 MMVManip *vm = mg->vm;
1852 if (!vm->m_area.contains(pos))
1855 s32 idx = vm->m_area.index(pos);
1856 vm->m_data[idx] = getNodeNoEx(pos);
1857 vm->m_flags[idx] &= ~VOXELFLAG_NO_DATA;
1859 vm->m_is_dirty = true;
1862 s16 ServerMap::findGroundLevel(v2s16 p2d)
1866 Uh, just do something random...
1868 // Find existing map from top to down
1871 v3s16 p(p2d.X, max, p2d.Y);
1872 for(; p.Y>min; p.Y--)
1874 MapNode n = getNodeNoEx(p);
1875 if(n.getContent() != CONTENT_IGNORE)
1880 // If this node is not air, go to plan b
1881 if(getNodeNoEx(p).getContent() != CONTENT_AIR)
1883 // Search existing walkable and return it
1884 for(; p.Y>min; p.Y--)
1886 MapNode n = getNodeNoEx(p);
1887 if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
1896 Determine from map generator noise functions
1899 s16 level = m_emerge->getGroundLevelAtPoint(p2d);
1902 //double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
1903 //return (s16)level;
1906 bool ServerMap::loadFromFolders() {
1907 if (!dbase->initialized() &&
1908 !fs::PathExists(m_savedir + DIR_DELIM + "map.sqlite"))
1913 void ServerMap::createDirs(std::string path)
1915 if(fs::CreateAllDirs(path) == false)
1917 m_dout<<"ServerMap: Failed to create directory "
1918 <<"\""<<path<<"\""<<std::endl;
1919 throw BaseException("ServerMap failed to create directory");
1923 std::string ServerMap::getSectorDir(v2s16 pos, int layout)
1929 snprintf(cc, 9, "%.4x%.4x",
1930 (unsigned int) pos.X & 0xffff,
1931 (unsigned int) pos.Y & 0xffff);
1933 return m_savedir + DIR_DELIM + "sectors" + DIR_DELIM + cc;
1935 snprintf(cc, 9, (std::string("%.3x") + DIR_DELIM + "%.3x").c_str(),
1936 (unsigned int) pos.X & 0xfff,
1937 (unsigned int) pos.Y & 0xfff);
1939 return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
1946 v2s16 ServerMap::getSectorPos(const std::string &dirname)
1948 unsigned int x = 0, y = 0;
1950 std::string component;
1951 fs::RemoveLastPathComponent(dirname, &component, 1);
1952 if(component.size() == 8)
1955 r = sscanf(component.c_str(), "%4x%4x", &x, &y);
1957 else if(component.size() == 3)
1960 fs::RemoveLastPathComponent(dirname, &component, 2);
1961 r = sscanf(component.c_str(), (std::string("%3x") + DIR_DELIM + "%3x").c_str(), &x, &y);
1962 // Sign-extend the 12 bit values up to 16 bits...
1963 if(x & 0x800) x |= 0xF000;
1964 if(y & 0x800) y |= 0xF000;
1971 FATAL_ERROR_IF(r != 2, "getSectorPos()");
1972 v2s16 pos((s16)x, (s16)y);
1976 v3s16 ServerMap::getBlockPos(const std::string §ordir, const std::string &blockfile)
1978 v2s16 p2d = getSectorPos(sectordir);
1980 if(blockfile.size() != 4){
1981 throw InvalidFilenameException("Invalid block filename");
1984 int r = sscanf(blockfile.c_str(), "%4x", &y);
1986 throw InvalidFilenameException("Invalid block filename");
1987 return v3s16(p2d.X, y, p2d.Y);
1990 std::string ServerMap::getBlockFilename(v3s16 p)
1993 snprintf(cc, 5, "%.4x", (unsigned int)p.Y&0xffff);
1997 void ServerMap::save(ModifiedState save_level)
1999 DSTACK(FUNCTION_NAME);
2000 if(m_map_saving_enabled == false) {
2001 warningstream<<"Not saving map, saving disabled."<<std::endl;
2005 if(save_level == MOD_STATE_CLEAN)
2006 infostream<<"ServerMap: Saving whole map, this can take time."
2009 if (m_map_metadata_changed || save_level == MOD_STATE_CLEAN) {
2010 if (settings_mgr.saveMapMeta())
2011 m_map_metadata_changed = false;
2014 // Profile modified reasons
2015 Profiler modprofiler;
2017 u32 sector_meta_count = 0;
2018 u32 block_count = 0;
2019 u32 block_count_all = 0; // Number of blocks in memory
2021 // Don't do anything with sqlite unless something is really saved
2022 bool save_started = false;
2024 for(std::map<v2s16, MapSector*>::iterator i = m_sectors.begin();
2025 i != m_sectors.end(); ++i) {
2026 ServerMapSector *sector = (ServerMapSector*)i->second;
2027 assert(sector->getId() == MAPSECTOR_SERVER);
2029 if(sector->differs_from_disk || save_level == MOD_STATE_CLEAN) {
2030 saveSectorMeta(sector);
2031 sector_meta_count++;
2034 MapBlockVect blocks;
2035 sector->getBlocks(blocks);
2037 for(MapBlockVect::iterator j = blocks.begin();
2038 j != blocks.end(); ++j) {
2039 MapBlock *block = *j;
2043 if(block->getModified() >= (u32)save_level) {
2047 save_started = true;
2050 modprofiler.add(block->getModifiedReasonString(), 1);
2055 /*infostream<<"ServerMap: Written block ("
2056 <<block->getPos().X<<","
2057 <<block->getPos().Y<<","
2058 <<block->getPos().Z<<")"
2068 Only print if something happened or saved whole map
2070 if(save_level == MOD_STATE_CLEAN || sector_meta_count != 0
2071 || block_count != 0) {
2072 infostream<<"ServerMap: Written: "
2073 <<sector_meta_count<<" sector metadata files, "
2074 <<block_count<<" block files"
2075 <<", "<<block_count_all<<" blocks in memory."
2077 PrintInfo(infostream); // ServerMap/ClientMap:
2078 infostream<<"Blocks modified by: "<<std::endl;
2079 modprofiler.print(infostream);
2083 void ServerMap::listAllLoadableBlocks(std::vector<v3s16> &dst)
2085 if (loadFromFolders()) {
2086 errorstream << "Map::listAllLoadableBlocks(): Result will be missing "
2087 << "all blocks that are stored in flat files." << std::endl;
2089 dbase->listAllLoadableBlocks(dst);
2092 void ServerMap::listAllLoadedBlocks(std::vector<v3s16> &dst)
2094 for(std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
2095 si != m_sectors.end(); ++si)
2097 MapSector *sector = si->second;
2099 MapBlockVect blocks;
2100 sector->getBlocks(blocks);
2102 for(MapBlockVect::iterator i = blocks.begin();
2103 i != blocks.end(); ++i) {
2104 v3s16 p = (*i)->getPos();
2110 void ServerMap::saveSectorMeta(ServerMapSector *sector)
2112 DSTACK(FUNCTION_NAME);
2113 // Format used for writing
2114 u8 version = SER_FMT_VER_HIGHEST_WRITE;
2116 v2s16 pos = sector->getPos();
2117 std::string dir = getSectorDir(pos);
2120 std::string fullpath = dir + DIR_DELIM + "meta";
2121 std::ostringstream ss(std::ios_base::binary);
2123 sector->serialize(ss, version);
2125 if(!fs::safeWriteToFile(fullpath, ss.str()))
2126 throw FileNotGoodException("Cannot write sector metafile");
2128 sector->differs_from_disk = false;
2131 MapSector* ServerMap::loadSectorMeta(std::string sectordir, bool save_after_load)
2133 DSTACK(FUNCTION_NAME);
2135 v2s16 p2d = getSectorPos(sectordir);
2137 ServerMapSector *sector = NULL;
2139 std::string fullpath = sectordir + DIR_DELIM + "meta";
2140 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
2141 if(is.good() == false)
2143 // If the directory exists anyway, it probably is in some old
2144 // format. Just go ahead and create the sector.
2145 if(fs::PathExists(sectordir))
2147 /*infostream<<"ServerMap::loadSectorMeta(): Sector metafile "
2148 <<fullpath<<" doesn't exist but directory does."
2149 <<" Continuing with a sector with no metadata."
2151 sector = new ServerMapSector(this, p2d, m_gamedef);
2152 m_sectors[p2d] = sector;
2156 throw FileNotGoodException("Cannot open sector metafile");
2161 sector = ServerMapSector::deSerialize
2162 (is, this, p2d, m_sectors, m_gamedef);
2164 saveSectorMeta(sector);
2167 sector->differs_from_disk = false;
2172 bool ServerMap::loadSectorMeta(v2s16 p2d)
2174 DSTACK(FUNCTION_NAME);
2176 // The directory layout we're going to load from.
2177 // 1 - original sectors/xxxxzzzz/
2178 // 2 - new sectors2/xxx/zzz/
2179 // If we load from anything but the latest structure, we will
2180 // immediately save to the new one, and remove the old.
2182 std::string sectordir1 = getSectorDir(p2d, 1);
2183 std::string sectordir;
2184 if(fs::PathExists(sectordir1))
2186 sectordir = sectordir1;
2191 sectordir = getSectorDir(p2d, 2);
2195 loadSectorMeta(sectordir, loadlayout != 2);
2197 catch(InvalidFilenameException &e)
2201 catch(FileNotGoodException &e)
2205 catch(std::exception &e)
2214 bool ServerMap::loadSectorFull(v2s16 p2d)
2216 DSTACK(FUNCTION_NAME);
2218 MapSector *sector = NULL;
2220 // The directory layout we're going to load from.
2221 // 1 - original sectors/xxxxzzzz/
2222 // 2 - new sectors2/xxx/zzz/
2223 // If we load from anything but the latest structure, we will
2224 // immediately save to the new one, and remove the old.
2226 std::string sectordir1 = getSectorDir(p2d, 1);
2227 std::string sectordir;
2228 if(fs::PathExists(sectordir1))
2230 sectordir = sectordir1;
2235 sectordir = getSectorDir(p2d, 2);
2239 sector = loadSectorMeta(sectordir, loadlayout != 2);
2241 catch(InvalidFilenameException &e)
2245 catch(FileNotGoodException &e)
2249 catch(std::exception &e)
2257 std::vector<fs::DirListNode> list2 = fs::GetDirListing
2259 std::vector<fs::DirListNode>::iterator i2;
2260 for(i2=list2.begin(); i2!=list2.end(); i2++)
2266 loadBlock(sectordir, i2->name, sector, loadlayout != 2);
2268 catch(InvalidFilenameException &e)
2270 // This catches unknown crap in directory
2276 infostream<<"Sector converted to new layout - deleting "<<
2277 sectordir1<<std::endl;
2278 fs::RecursiveDelete(sectordir1);
2285 MapDatabase *ServerMap::createDatabase(
2286 const std::string &name,
2287 const std::string &savedir,
2290 if (name == "sqlite3")
2291 return new MapDatabaseSQLite3(savedir);
2292 if (name == "dummy")
2293 return new Database_Dummy();
2295 else if (name == "leveldb")
2296 return new Database_LevelDB(savedir);
2299 else if (name == "redis")
2300 return new Database_Redis(conf);
2303 else if (name == "postgresql") {
2304 std::string connect_string = "";
2305 conf.getNoEx("pgsql_connection", connect_string);
2306 return new MapDatabasePostgreSQL(connect_string);
2310 throw BaseException(std::string("Database backend ") + name + " not supported.");
2313 void ServerMap::beginSave()
2318 void ServerMap::endSave()
2323 bool ServerMap::saveBlock(MapBlock *block)
2325 return saveBlock(block, dbase);
2328 bool ServerMap::saveBlock(MapBlock *block, MapDatabase *db)
2330 v3s16 p3d = block->getPos();
2332 // Dummy blocks are not written
2333 if (block->isDummy()) {
2334 warningstream << "saveBlock: Not writing dummy block "
2335 << PP(p3d) << std::endl;
2339 // Format used for writing
2340 u8 version = SER_FMT_VER_HIGHEST_WRITE;
2343 [0] u8 serialization version
2346 std::ostringstream o(std::ios_base::binary);
2347 o.write((char*) &version, 1);
2348 block->serialize(o, version, true);
2350 std::string data = o.str();
2351 bool ret = db->saveBlock(p3d, data);
2353 // We just wrote it to the disk so clear modified flag
2354 block->resetModified();
2359 void ServerMap::loadBlock(const std::string §ordir, const std::string &blockfile,
2360 MapSector *sector, bool save_after_load)
2362 DSTACK(FUNCTION_NAME);
2364 std::string fullpath = sectordir + DIR_DELIM + blockfile;
2366 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
2368 throw FileNotGoodException("Cannot open block file");
2370 v3s16 p3d = getBlockPos(sectordir, blockfile);
2371 v2s16 p2d(p3d.X, p3d.Z);
2373 assert(sector->getPos() == p2d);
2375 u8 version = SER_FMT_VER_INVALID;
2376 is.read((char*)&version, 1);
2379 throw SerializationError("ServerMap::loadBlock(): Failed"
2380 " to read MapBlock version");
2382 /*u32 block_size = MapBlock::serializedLength(version);
2383 SharedBuffer<u8> data(block_size);
2384 is.read((char*)*data, block_size);*/
2386 // This will always return a sector because we're the server
2387 //MapSector *sector = emergeSector(p2d);
2389 MapBlock *block = NULL;
2390 bool created_new = false;
2391 block = sector->getBlockNoCreateNoEx(p3d.Y);
2394 block = sector->createBlankBlockNoInsert(p3d.Y);
2399 block->deSerialize(is, version, true);
2401 // If it's a new block, insert it to the map
2403 sector->insertBlock(block);
2404 ReflowScan scanner(this, m_emerge->ndef);
2405 scanner.scan(block, &m_transforming_liquid);
2409 Save blocks loaded in old format in new format
2412 if(version < SER_FMT_VER_HIGHEST_WRITE || save_after_load)
2416 // Should be in database now, so delete the old file
2417 fs::RecursiveDelete(fullpath);
2420 // We just loaded it from the disk, so it's up-to-date.
2421 block->resetModified();
2424 catch(SerializationError &e)
2426 warningstream<<"Invalid block data on disk "
2427 <<"fullpath="<<fullpath
2428 <<" (SerializationError). "
2429 <<"what()="<<e.what()
2431 // Ignoring. A new one will be generated.
2434 // TODO: Backup file; name is in fullpath.
2438 void ServerMap::loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load)
2440 DSTACK(FUNCTION_NAME);
2443 std::istringstream is(*blob, std::ios_base::binary);
2445 u8 version = SER_FMT_VER_INVALID;
2446 is.read((char*)&version, 1);
2449 throw SerializationError("ServerMap::loadBlock(): Failed"
2450 " to read MapBlock version");
2452 MapBlock *block = NULL;
2453 bool created_new = false;
2454 block = sector->getBlockNoCreateNoEx(p3d.Y);
2457 block = sector->createBlankBlockNoInsert(p3d.Y);
2462 block->deSerialize(is, version, true);
2464 // If it's a new block, insert it to the map
2466 sector->insertBlock(block);
2467 ReflowScan scanner(this, m_emerge->ndef);
2468 scanner.scan(block, &m_transforming_liquid);
2472 Save blocks loaded in old format in new format
2475 //if(version < SER_FMT_VER_HIGHEST_READ || save_after_load)
2476 // Only save if asked to; no need to update version
2480 // We just loaded it from, so it's up-to-date.
2481 block->resetModified();
2483 catch(SerializationError &e)
2485 errorstream<<"Invalid block data in database"
2486 <<" ("<<p3d.X<<","<<p3d.Y<<","<<p3d.Z<<")"
2487 <<" (SerializationError): "<<e.what()<<std::endl;
2489 // TODO: Block should be marked as invalid in memory so that it is
2490 // not touched but the game can run
2492 if(g_settings->getBool("ignore_world_load_errors")){
2493 errorstream<<"Ignoring block load error. Duck and cover! "
2494 <<"(ignore_world_load_errors)"<<std::endl;
2496 throw SerializationError("Invalid block data in database");
2501 MapBlock* ServerMap::loadBlock(v3s16 blockpos)
2503 DSTACK(FUNCTION_NAME);
2505 bool created_new = (getBlockNoCreateNoEx(blockpos) == NULL);
2507 v2s16 p2d(blockpos.X, blockpos.Z);
2510 dbase->loadBlock(blockpos, &ret);
2512 loadBlock(&ret, blockpos, createSector(p2d), false);
2514 // Not found in database, try the files
2516 // The directory layout we're going to load from.
2517 // 1 - original sectors/xxxxzzzz/
2518 // 2 - new sectors2/xxx/zzz/
2519 // If we load from anything but the latest structure, we will
2520 // immediately save to the new one, and remove the old.
2522 std::string sectordir1 = getSectorDir(p2d, 1);
2523 std::string sectordir;
2524 if (fs::PathExists(sectordir1)) {
2525 sectordir = sectordir1;
2528 sectordir = getSectorDir(p2d, 2);
2532 Make sure sector is loaded
2535 MapSector *sector = getSectorNoGenerateNoEx(p2d);
2536 if (sector == NULL) {
2538 sector = loadSectorMeta(sectordir, loadlayout != 2);
2539 } catch(InvalidFilenameException &e) {
2541 } catch(FileNotGoodException &e) {
2543 } catch(std::exception &e) {
2550 Make sure file exists
2553 std::string blockfilename = getBlockFilename(blockpos);
2554 if (fs::PathExists(sectordir + DIR_DELIM + blockfilename) == false)
2558 Load block and save it to the database
2560 loadBlock(sectordir, blockfilename, sector, true);
2562 MapBlock *block = getBlockNoCreateNoEx(blockpos);
2563 if (created_new && (block != NULL)) {
2564 std::map<v3s16, MapBlock*> modified_blocks;
2565 // Fix lighting if necessary
2566 voxalgo::update_block_border_lighting(this, block, modified_blocks);
2567 if (!modified_blocks.empty()) {
2568 //Modified lighting, send event
2570 event.type = MEET_OTHER;
2571 std::map<v3s16, MapBlock *>::iterator it;
2572 for (it = modified_blocks.begin();
2573 it != modified_blocks.end(); ++it)
2574 event.modified_blocks.insert(it->first);
2575 dispatchEvent(&event);
2581 bool ServerMap::deleteBlock(v3s16 blockpos)
2583 if (!dbase->deleteBlock(blockpos))
2586 MapBlock *block = getBlockNoCreateNoEx(blockpos);
2588 v2s16 p2d(blockpos.X, blockpos.Z);
2589 MapSector *sector = getSectorNoGenerateNoEx(p2d);
2592 sector->deleteBlock(block);
2598 void ServerMap::PrintInfo(std::ostream &out)
2603 bool ServerMap::repairBlockLight(v3s16 blockpos,
2604 std::map<v3s16, MapBlock *> *modified_blocks)
2606 MapBlock *block = emergeBlock(blockpos, false);
2607 if (!block || !block->isGenerated())
2609 voxalgo::repair_block_light(this, block, modified_blocks);
2613 MMVManip::MMVManip(Map *map):
2619 MMVManip::~MMVManip()
2623 void MMVManip::initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
2624 bool load_if_inexistent)
2626 TimeTaker timer1("initialEmerge", &emerge_time);
2628 // Units of these are MapBlocks
2629 v3s16 p_min = blockpos_min;
2630 v3s16 p_max = blockpos_max;
2632 VoxelArea block_area_nodes
2633 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
2635 u32 size_MB = block_area_nodes.getVolume()*4/1000000;
2638 infostream<<"initialEmerge: area: ";
2639 block_area_nodes.print(infostream);
2640 infostream<<" ("<<size_MB<<"MB)";
2641 infostream<<std::endl;
2644 addArea(block_area_nodes);
2646 for(s32 z=p_min.Z; z<=p_max.Z; z++)
2647 for(s32 y=p_min.Y; y<=p_max.Y; y++)
2648 for(s32 x=p_min.X; x<=p_max.X; x++)
2653 std::map<v3s16, u8>::iterator n;
2654 n = m_loaded_blocks.find(p);
2655 if(n != m_loaded_blocks.end())
2658 bool block_data_inexistent = false;
2661 TimeTaker timer1("emerge load", &emerge_load_time);
2663 block = m_map->getBlockNoCreate(p);
2664 if(block->isDummy())
2665 block_data_inexistent = true;
2667 block->copyTo(*this);
2669 catch(InvalidPositionException &e)
2671 block_data_inexistent = true;
2674 if(block_data_inexistent)
2677 if (load_if_inexistent && !blockpos_over_max_limit(p)) {
2678 ServerMap *svrmap = (ServerMap *)m_map;
2679 block = svrmap->emergeBlock(p, false);
2681 block = svrmap->createBlock(p);
2682 block->copyTo(*this);
2684 flags |= VMANIP_BLOCK_DATA_INEXIST;
2687 Mark area inexistent
2689 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
2690 // Fill with VOXELFLAG_NO_DATA
2691 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
2692 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
2694 s32 i = m_area.index(a.MinEdge.X,y,z);
2695 memset(&m_flags[i], VOXELFLAG_NO_DATA, MAP_BLOCKSIZE);
2699 /*else if (block->getNode(0, 0, 0).getContent() == CONTENT_IGNORE)
2701 // Mark that block was loaded as blank
2702 flags |= VMANIP_BLOCK_CONTAINS_CIGNORE;
2705 m_loaded_blocks[p] = flags;
2711 void MMVManip::blitBackAll(std::map<v3s16, MapBlock*> *modified_blocks,
2712 bool overwrite_generated)
2714 if(m_area.getExtent() == v3s16(0,0,0))
2718 Copy data of all blocks
2720 for(std::map<v3s16, u8>::iterator
2721 i = m_loaded_blocks.begin();
2722 i != m_loaded_blocks.end(); ++i)
2725 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
2726 bool existed = !(i->second & VMANIP_BLOCK_DATA_INEXIST);
2727 if ((existed == false) || (block == NULL) ||
2728 (overwrite_generated == false && block->isGenerated() == true))
2731 block->copyFrom(*this);
2734 (*modified_blocks)[p] = block;