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 struct TimeOrderedMapBlock {
369 TimeOrderedMapBlock(MapSector *sect, MapBlock *block) :
374 bool operator<(const TimeOrderedMapBlock &b) const
376 return block->getUsageTimer() < b.block->getUsageTimer();
383 void Map::timerUpdate(float dtime, float unload_timeout, u32 max_loaded_blocks,
384 std::vector<v3s16> *unloaded_blocks)
386 bool save_before_unloading = (mapType() == MAPTYPE_SERVER);
388 // Profile modified reasons
389 Profiler modprofiler;
391 std::vector<v2s16> sector_deletion_queue;
392 u32 deleted_blocks_count = 0;
393 u32 saved_blocks_count = 0;
394 u32 block_count_all = 0;
398 // If there is no practical limit, we spare creation of mapblock_queue
399 if (max_loaded_blocks == U32_MAX) {
400 for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
401 si != m_sectors.end(); ++si) {
402 MapSector *sector = si->second;
404 bool all_blocks_deleted = true;
407 sector->getBlocks(blocks);
409 for (MapBlockVect::iterator i = blocks.begin();
410 i != blocks.end(); ++i) {
411 MapBlock *block = (*i);
413 block->incrementUsageTimer(dtime);
415 if (block->refGet() == 0
416 && block->getUsageTimer() > unload_timeout) {
417 v3s16 p = block->getPos();
420 if (block->getModified() != MOD_STATE_CLEAN
421 && save_before_unloading) {
422 modprofiler.add(block->getModifiedReasonString(), 1);
423 if (!saveBlock(block))
425 saved_blocks_count++;
428 // Delete from memory
429 sector->deleteBlock(block);
432 unloaded_blocks->push_back(p);
434 deleted_blocks_count++;
436 all_blocks_deleted = false;
441 if (all_blocks_deleted) {
442 sector_deletion_queue.push_back(si->first);
446 std::priority_queue<TimeOrderedMapBlock> mapblock_queue;
447 for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
448 si != m_sectors.end(); ++si) {
449 MapSector *sector = si->second;
452 sector->getBlocks(blocks);
454 for(MapBlockVect::iterator i = blocks.begin();
455 i != blocks.end(); ++i) {
456 MapBlock *block = (*i);
458 block->incrementUsageTimer(dtime);
459 mapblock_queue.push(TimeOrderedMapBlock(sector, block));
462 block_count_all = mapblock_queue.size();
463 // Delete old blocks, and blocks over the limit from the memory
464 while (!mapblock_queue.empty() && (mapblock_queue.size() > max_loaded_blocks
465 || mapblock_queue.top().block->getUsageTimer() > unload_timeout)) {
466 TimeOrderedMapBlock b = mapblock_queue.top();
467 mapblock_queue.pop();
469 MapBlock *block = b.block;
471 if (block->refGet() != 0)
474 v3s16 p = block->getPos();
477 if (block->getModified() != MOD_STATE_CLEAN && save_before_unloading) {
478 modprofiler.add(block->getModifiedReasonString(), 1);
479 if (!saveBlock(block))
481 saved_blocks_count++;
484 // Delete from memory
485 b.sect->deleteBlock(block);
488 unloaded_blocks->push_back(p);
490 deleted_blocks_count++;
493 // Delete empty sectors
494 for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
495 si != m_sectors.end(); ++si) {
496 if (si->second->empty()) {
497 sector_deletion_queue.push_back(si->first);
503 // Finally delete the empty sectors
504 deleteSectors(sector_deletion_queue);
506 if(deleted_blocks_count != 0)
508 PrintInfo(infostream); // ServerMap/ClientMap:
509 infostream<<"Unloaded "<<deleted_blocks_count
510 <<" blocks from memory";
511 if(save_before_unloading)
512 infostream<<", of which "<<saved_blocks_count<<" were written";
513 infostream<<", "<<block_count_all<<" blocks in memory";
514 infostream<<"."<<std::endl;
515 if(saved_blocks_count != 0){
516 PrintInfo(infostream); // ServerMap/ClientMap:
517 infostream<<"Blocks modified by: "<<std::endl;
518 modprofiler.print(infostream);
523 void Map::unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks)
525 timerUpdate(0.0, -1.0, 0, unloaded_blocks);
528 void Map::deleteSectors(std::vector<v2s16> §orList)
530 for(std::vector<v2s16>::iterator j = sectorList.begin();
531 j != sectorList.end(); ++j) {
532 MapSector *sector = m_sectors[*j];
533 // If sector is in sector cache, remove it from there
534 if(m_sector_cache == sector)
535 m_sector_cache = NULL;
536 // Remove from map and delete
542 void Map::PrintInfo(std::ostream &out)
547 #define WATER_DROP_BOOST 4
554 struct NodeNeighbor {
564 NodeNeighbor(const MapNode &node, NeighborType n_type, v3s16 pos)
571 void Map::transforming_liquid_add(v3s16 p) {
572 m_transforming_liquid.push_back(p);
575 s32 Map::transforming_liquid_size() {
576 return m_transforming_liquid.size();
579 void Map::transformLiquids(std::map<v3s16, MapBlock*> &modified_blocks,
580 ServerEnvironment *env)
582 DSTACK(FUNCTION_NAME);
583 //TimeTaker timer("transformLiquids()");
586 u32 initial_size = m_transforming_liquid.size();
588 /*if(initial_size != 0)
589 infostream<<"transformLiquids(): initial_size="<<initial_size<<std::endl;*/
591 // list of nodes that due to viscosity have not reached their max level height
592 std::deque<v3s16> must_reflow;
594 std::vector<std::pair<v3s16, MapNode> > changed_nodes;
596 u32 liquid_loop_max = g_settings->getS32("liquid_loop_max");
597 u32 loop_max = liquid_loop_max;
601 /* If liquid_loop_max is not keeping up with the queue size increase
602 * loop_max up to a maximum of liquid_loop_max * dedicated_server_step.
604 if (m_transforming_liquid.size() > loop_max * 2) {
606 float server_step = g_settings->getFloat("dedicated_server_step");
607 if (m_transforming_liquid_loop_count_multiplier - 1.0 < server_step)
608 m_transforming_liquid_loop_count_multiplier *= 1.0 + server_step / 10;
610 m_transforming_liquid_loop_count_multiplier = 1.0;
613 loop_max *= m_transforming_liquid_loop_count_multiplier;
616 while (m_transforming_liquid.size() != 0)
618 // This should be done here so that it is done when continue is used
619 if (loopcount >= initial_size || loopcount >= loop_max)
624 Get a queued transforming liquid node
626 v3s16 p0 = m_transforming_liquid.front();
627 m_transforming_liquid.pop_front();
629 MapNode n0 = getNodeNoEx(p0);
632 Collect information about current node
634 s8 liquid_level = -1;
635 // The liquid node which will be placed there if
636 // the liquid flows into this node.
637 content_t liquid_kind = CONTENT_IGNORE;
638 // The node which will be placed there if liquid
639 // can't flow into this node.
640 content_t floodable_node = CONTENT_AIR;
641 const ContentFeatures &cf = m_nodedef->get(n0);
642 LiquidType liquid_type = cf.liquid_type;
643 switch (liquid_type) {
645 liquid_level = LIQUID_LEVEL_SOURCE;
646 liquid_kind = m_nodedef->getId(cf.liquid_alternative_flowing);
649 liquid_level = (n0.param2 & LIQUID_LEVEL_MASK);
650 liquid_kind = n0.getContent();
653 // if this node is 'floodable', it *could* be transformed
654 // into a liquid, otherwise, continue with the next node.
657 floodable_node = n0.getContent();
658 liquid_kind = CONTENT_AIR;
663 Collect information about the environment
665 const v3s16 *dirs = g_6dirs;
666 NodeNeighbor sources[6]; // surrounding sources
668 NodeNeighbor flows[6]; // surrounding flowing liquid nodes
670 NodeNeighbor airs[6]; // surrounding air
672 NodeNeighbor neutrals[6]; // nodes that are solid or another kind of liquid
673 int num_neutrals = 0;
674 bool flowing_down = false;
675 bool ignored_sources = false;
676 for (u16 i = 0; i < 6; i++) {
677 NeighborType nt = NEIGHBOR_SAME_LEVEL;
686 v3s16 npos = p0 + dirs[i];
687 NodeNeighbor nb(getNodeNoEx(npos), nt, npos);
688 const ContentFeatures &cfnb = m_nodedef->get(nb.n);
689 switch (m_nodedef->get(nb.n.getContent()).liquid_type) {
691 if (cfnb.floodable) {
692 airs[num_airs++] = nb;
693 // if the current node is a water source the neighbor
694 // should be enqueded for transformation regardless of whether the
695 // current node changes or not.
696 if (nb.t != NEIGHBOR_UPPER && liquid_type != LIQUID_NONE)
697 m_transforming_liquid.push_back(npos);
698 // if the current node happens to be a flowing node, it will start to flow down here.
699 if (nb.t == NEIGHBOR_LOWER)
702 neutrals[num_neutrals++] = nb;
703 if (nb.n.getContent() == CONTENT_IGNORE) {
704 // If node below is ignore prevent water from
705 // spreading outwards and otherwise prevent from
706 // flowing away as ignore node might be the source
707 if (nb.t == NEIGHBOR_LOWER)
710 ignored_sources = true;
715 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
716 if (liquid_kind == CONTENT_AIR)
717 liquid_kind = m_nodedef->getId(cfnb.liquid_alternative_flowing);
718 if (m_nodedef->getId(cfnb.liquid_alternative_flowing) != liquid_kind) {
719 neutrals[num_neutrals++] = nb;
721 // Do not count bottom source, it will screw things up
723 sources[num_sources++] = nb;
727 // if this node is not (yet) of a liquid type, choose the first liquid type we encounter
728 if (liquid_kind == CONTENT_AIR)
729 liquid_kind = m_nodedef->getId(cfnb.liquid_alternative_flowing);
730 if (m_nodedef->getId(cfnb.liquid_alternative_flowing) != liquid_kind) {
731 neutrals[num_neutrals++] = nb;
733 flows[num_flows++] = nb;
734 if (nb.t == NEIGHBOR_LOWER)
742 decide on the type (and possibly level) of the current node
744 content_t new_node_content;
745 s8 new_node_level = -1;
746 s8 max_node_level = -1;
748 u8 range = m_nodedef->get(liquid_kind).liquid_range;
749 if (range > LIQUID_LEVEL_MAX + 1)
750 range = LIQUID_LEVEL_MAX + 1;
752 if ((num_sources >= 2 && m_nodedef->get(liquid_kind).liquid_renewable) || liquid_type == LIQUID_SOURCE) {
753 // liquid_kind will be set to either the flowing alternative of the node (if it's a liquid)
754 // or the flowing alternative of the first of the surrounding sources (if it's air), so
755 // it's perfectly safe to use liquid_kind here to determine the new node content.
756 new_node_content = m_nodedef->getId(m_nodedef->get(liquid_kind).liquid_alternative_source);
757 } else if (num_sources >= 1 && sources[0].t != NEIGHBOR_LOWER) {
758 // liquid_kind is set properly, see above
759 max_node_level = new_node_level = LIQUID_LEVEL_MAX;
760 if (new_node_level >= (LIQUID_LEVEL_MAX + 1 - range))
761 new_node_content = liquid_kind;
763 new_node_content = floodable_node;
764 } else if (ignored_sources && liquid_level >= 0) {
765 // Maybe there are neighbouring sources that aren't loaded yet
766 // so prevent flowing away.
767 new_node_level = liquid_level;
768 new_node_content = liquid_kind;
770 // no surrounding sources, so get the maximum level that can flow into this node
771 for (u16 i = 0; i < num_flows; i++) {
772 u8 nb_liquid_level = (flows[i].n.param2 & LIQUID_LEVEL_MASK);
773 switch (flows[i].t) {
775 if (nb_liquid_level + WATER_DROP_BOOST > max_node_level) {
776 max_node_level = LIQUID_LEVEL_MAX;
777 if (nb_liquid_level + WATER_DROP_BOOST < LIQUID_LEVEL_MAX)
778 max_node_level = nb_liquid_level + WATER_DROP_BOOST;
779 } else if (nb_liquid_level > max_node_level) {
780 max_node_level = nb_liquid_level;
785 case NEIGHBOR_SAME_LEVEL:
786 if ((flows[i].n.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK &&
787 nb_liquid_level > 0 && nb_liquid_level - 1 > max_node_level)
788 max_node_level = nb_liquid_level - 1;
793 u8 viscosity = m_nodedef->get(liquid_kind).liquid_viscosity;
794 if (viscosity > 1 && max_node_level != liquid_level) {
795 // amount to gain, limited by viscosity
796 // must be at least 1 in absolute value
797 s8 level_inc = max_node_level - liquid_level;
798 if (level_inc < -viscosity || level_inc > viscosity)
799 new_node_level = liquid_level + level_inc/viscosity;
800 else if (level_inc < 0)
801 new_node_level = liquid_level - 1;
802 else if (level_inc > 0)
803 new_node_level = liquid_level + 1;
804 if (new_node_level != max_node_level)
805 must_reflow.push_back(p0);
807 new_node_level = max_node_level;
810 if (max_node_level >= (LIQUID_LEVEL_MAX + 1 - range))
811 new_node_content = liquid_kind;
813 new_node_content = floodable_node;
818 check if anything has changed. if not, just continue with the next node.
820 if (new_node_content == n0.getContent() &&
821 (m_nodedef->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
822 ((n0.param2 & LIQUID_LEVEL_MASK) == (u8)new_node_level &&
823 ((n0.param2 & LIQUID_FLOW_DOWN_MASK) == LIQUID_FLOW_DOWN_MASK)
829 update the current node
832 //bool flow_down_enabled = (flowing_down && ((n0.param2 & LIQUID_FLOW_DOWN_MASK) != LIQUID_FLOW_DOWN_MASK));
833 if (m_nodedef->get(new_node_content).liquid_type == LIQUID_FLOWING) {
834 // set level to last 3 bits, flowing down bit to 4th bit
835 n0.param2 = (flowing_down ? LIQUID_FLOW_DOWN_MASK : 0x00) | (new_node_level & LIQUID_LEVEL_MASK);
837 // set the liquid level and flow bit to 0
838 n0.param2 = ~(LIQUID_LEVEL_MASK | LIQUID_FLOW_DOWN_MASK);
842 n0.setContent(new_node_content);
844 // on_flood() the node
845 if (floodable_node != CONTENT_AIR) {
846 if (env->getScriptIface()->node_on_flood(p0, n00, n0))
850 // Ignore light (because calling voxalgo::update_lighting_nodes)
851 n0.setLight(LIGHTBANK_DAY, 0, m_nodedef);
852 n0.setLight(LIGHTBANK_NIGHT, 0, m_nodedef);
854 // Find out whether there is a suspect for this action
856 if (m_gamedef->rollback())
857 suspect = m_gamedef->rollback()->getSuspect(p0, 83, 1);
859 if (m_gamedef->rollback() && !suspect.empty()) {
861 RollbackScopeActor rollback_scope(m_gamedef->rollback(), suspect, true);
862 // Get old node for rollback
863 RollbackNode rollback_oldnode(this, p0, m_gamedef);
867 RollbackNode rollback_newnode(this, p0, m_gamedef);
868 RollbackAction action;
869 action.setSetNode(p0, rollback_oldnode, rollback_newnode);
870 m_gamedef->rollback()->reportAction(action);
876 v3s16 blockpos = getNodeBlockPos(p0);
877 MapBlock *block = getBlockNoCreateNoEx(blockpos);
879 modified_blocks[blockpos] = block;
880 changed_nodes.push_back(std::pair<v3s16, MapNode>(p0, n00));
884 enqueue neighbors for update if neccessary
886 switch (m_nodedef->get(n0.getContent()).liquid_type) {
889 // make sure source flows into all neighboring nodes
890 for (u16 i = 0; i < num_flows; i++)
891 if (flows[i].t != NEIGHBOR_UPPER)
892 m_transforming_liquid.push_back(flows[i].p);
893 for (u16 i = 0; i < num_airs; i++)
894 if (airs[i].t != NEIGHBOR_UPPER)
895 m_transforming_liquid.push_back(airs[i].p);
898 // this flow has turned to air; neighboring flows might need to do the same
899 for (u16 i = 0; i < num_flows; i++)
900 m_transforming_liquid.push_back(flows[i].p);
904 //infostream<<"Map::transformLiquids(): loopcount="<<loopcount<<std::endl;
906 for (std::deque<v3s16>::iterator iter = must_reflow.begin(); iter != must_reflow.end(); ++iter)
907 m_transforming_liquid.push_back(*iter);
909 voxalgo::update_lighting_nodes(this, changed_nodes, modified_blocks);
912 /* ----------------------------------------------------------------------
913 * Manage the queue so that it does not grow indefinately
915 u16 time_until_purge = g_settings->getU16("liquid_queue_purge_time");
917 if (time_until_purge == 0)
918 return; // Feature disabled
920 time_until_purge *= 1000; // seconds -> milliseconds
922 u64 curr_time = porting::getTimeMs();
923 u32 prev_unprocessed = m_unprocessed_count;
924 m_unprocessed_count = m_transforming_liquid.size();
926 // if unprocessed block count is decreasing or stable
927 if (m_unprocessed_count <= prev_unprocessed) {
928 m_queue_size_timer_started = false;
930 if (!m_queue_size_timer_started)
931 m_inc_trending_up_start_time = curr_time;
932 m_queue_size_timer_started = true;
935 // Account for curr_time overflowing
936 if (m_queue_size_timer_started && m_inc_trending_up_start_time > curr_time)
937 m_queue_size_timer_started = false;
939 /* If the queue has been growing for more than liquid_queue_purge_time seconds
940 * and the number of unprocessed blocks is still > liquid_loop_max then we
941 * cannot keep up; dump the oldest blocks from the queue so that the queue
942 * has liquid_loop_max items in it
944 if (m_queue_size_timer_started
945 && curr_time - m_inc_trending_up_start_time > time_until_purge
946 && m_unprocessed_count > liquid_loop_max) {
948 size_t dump_qty = m_unprocessed_count - liquid_loop_max;
950 infostream << "transformLiquids(): DUMPING " << dump_qty
951 << " blocks from the queue" << std::endl;
954 m_transforming_liquid.pop_front();
956 m_queue_size_timer_started = false; // optimistically assume we can keep up now
957 m_unprocessed_count = m_transforming_liquid.size();
961 std::vector<v3s16> Map::findNodesWithMetadata(v3s16 p1, v3s16 p2)
963 std::vector<v3s16> positions_with_meta;
965 sortBoxVerticies(p1, p2);
966 v3s16 bpmin = getNodeBlockPos(p1);
967 v3s16 bpmax = getNodeBlockPos(p2);
969 VoxelArea area(p1, p2);
971 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
972 for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
973 for (s16 x = bpmin.X; x <= bpmax.X; x++) {
974 v3s16 blockpos(x, y, z);
976 MapBlock *block = getBlockNoCreateNoEx(blockpos);
978 verbosestream << "Map::getNodeMetadata(): Need to emerge "
979 << PP(blockpos) << std::endl;
980 block = emergeBlock(blockpos, false);
983 infostream << "WARNING: Map::getNodeMetadata(): Block not found"
988 v3s16 p_base = blockpos * MAP_BLOCKSIZE;
989 std::vector<v3s16> keys = block->m_node_metadata.getAllKeys();
990 for (size_t i = 0; i != keys.size(); i++) {
991 v3s16 p(keys[i] + p_base);
992 if (!area.contains(p))
995 positions_with_meta.push_back(p);
999 return positions_with_meta;
1002 NodeMetadata *Map::getNodeMetadata(v3s16 p)
1004 v3s16 blockpos = getNodeBlockPos(p);
1005 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1006 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1008 infostream<<"Map::getNodeMetadata(): Need to emerge "
1009 <<PP(blockpos)<<std::endl;
1010 block = emergeBlock(blockpos, false);
1013 warningstream<<"Map::getNodeMetadata(): Block not found"
1017 NodeMetadata *meta = block->m_node_metadata.get(p_rel);
1021 bool Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
1023 v3s16 blockpos = getNodeBlockPos(p);
1024 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1025 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1027 infostream<<"Map::setNodeMetadata(): Need to emerge "
1028 <<PP(blockpos)<<std::endl;
1029 block = emergeBlock(blockpos, false);
1032 warningstream<<"Map::setNodeMetadata(): Block not found"
1036 block->m_node_metadata.set(p_rel, meta);
1040 void Map::removeNodeMetadata(v3s16 p)
1042 v3s16 blockpos = getNodeBlockPos(p);
1043 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1044 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1047 warningstream<<"Map::removeNodeMetadata(): Block not found"
1051 block->m_node_metadata.remove(p_rel);
1054 NodeTimer Map::getNodeTimer(v3s16 p)
1056 v3s16 blockpos = getNodeBlockPos(p);
1057 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1058 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1060 infostream<<"Map::getNodeTimer(): Need to emerge "
1061 <<PP(blockpos)<<std::endl;
1062 block = emergeBlock(blockpos, false);
1065 warningstream<<"Map::getNodeTimer(): Block not found"
1069 NodeTimer t = block->m_node_timers.get(p_rel);
1070 NodeTimer nt(t.timeout, t.elapsed, p);
1074 void Map::setNodeTimer(const NodeTimer &t)
1076 v3s16 p = t.position;
1077 v3s16 blockpos = getNodeBlockPos(p);
1078 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1079 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1081 infostream<<"Map::setNodeTimer(): Need to emerge "
1082 <<PP(blockpos)<<std::endl;
1083 block = emergeBlock(blockpos, false);
1086 warningstream<<"Map::setNodeTimer(): Block not found"
1090 NodeTimer nt(t.timeout, t.elapsed, p_rel);
1091 block->m_node_timers.set(nt);
1094 void Map::removeNodeTimer(v3s16 p)
1096 v3s16 blockpos = getNodeBlockPos(p);
1097 v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
1098 MapBlock *block = getBlockNoCreateNoEx(blockpos);
1101 warningstream<<"Map::removeNodeTimer(): Block not found"
1105 block->m_node_timers.remove(p_rel);
1108 bool Map::isOccluded(v3s16 p0, v3s16 p1, float step, float stepfac,
1109 float start_off, float end_off, u32 needed_count)
1111 float d0 = (float)BS * p0.getDistanceFrom(p1);
1113 v3f uf = v3f(u0.X, u0.Y, u0.Z) * BS;
1115 v3f p0f = v3f(p0.X, p0.Y, p0.Z) * BS;
1117 for(float s=start_off; s<d0+end_off; s+=step){
1118 v3f pf = p0f + uf * s;
1119 v3s16 p = floatToInt(pf, BS);
1120 MapNode n = getNodeNoEx(p);
1121 const ContentFeatures &f = m_nodedef->get(n);
1122 if(f.drawtype == NDT_NORMAL){
1123 // not transparent, see ContentFeature::updateTextures
1125 if(count >= needed_count)
1133 bool Map::isBlockOccluded(MapBlock *block, v3s16 cam_pos_nodes) {
1134 v3s16 cpn = block->getPos() * MAP_BLOCKSIZE;
1135 cpn += v3s16(MAP_BLOCKSIZE / 2, MAP_BLOCKSIZE / 2, MAP_BLOCKSIZE / 2);
1136 float step = BS * 1;
1137 float stepfac = 1.1;
1138 float startoff = BS * 1;
1139 // The occlusion search of 'isOccluded()' must stop short of the target
1140 // point by distance 'endoff' (end offset) to not enter the target mapblock.
1141 // For the 8 mapblock corners 'endoff' must therefore be the maximum diagonal
1142 // of a mapblock, because we must consider all view angles.
1143 // sqrt(1^2 + 1^2 + 1^2) = 1.732
1144 float endoff = -BS * MAP_BLOCKSIZE * 1.732050807569;
1145 v3s16 spn = cam_pos_nodes;
1146 s16 bs2 = MAP_BLOCKSIZE / 2 + 1;
1147 // to reduce the likelihood of falsely occluded blocks
1148 // require at least two solid blocks
1149 // this is a HACK, we should think of a more precise algorithm
1150 u32 needed_count = 2;
1153 // For the central point of the mapblock 'endoff' can be halved
1154 isOccluded(spn, cpn,
1155 step, stepfac, startoff, endoff / 2.0f, needed_count) &&
1156 isOccluded(spn, cpn + v3s16(bs2,bs2,bs2),
1157 step, stepfac, startoff, endoff, needed_count) &&
1158 isOccluded(spn, cpn + v3s16(bs2,bs2,-bs2),
1159 step, stepfac, startoff, endoff, needed_count) &&
1160 isOccluded(spn, cpn + v3s16(bs2,-bs2,bs2),
1161 step, stepfac, startoff, endoff, needed_count) &&
1162 isOccluded(spn, cpn + v3s16(bs2,-bs2,-bs2),
1163 step, stepfac, startoff, endoff, needed_count) &&
1164 isOccluded(spn, cpn + v3s16(-bs2,bs2,bs2),
1165 step, stepfac, startoff, endoff, needed_count) &&
1166 isOccluded(spn, cpn + v3s16(-bs2,bs2,-bs2),
1167 step, stepfac, startoff, endoff, needed_count) &&
1168 isOccluded(spn, cpn + v3s16(-bs2,-bs2,bs2),
1169 step, stepfac, startoff, endoff, needed_count) &&
1170 isOccluded(spn, cpn + v3s16(-bs2,-bs2,-bs2),
1171 step, stepfac, startoff, endoff, needed_count));
1177 ServerMap::ServerMap(const std::string &savedir, IGameDef *gamedef,
1178 EmergeManager *emerge):
1179 Map(dout_server, gamedef),
1180 settings_mgr(g_settings, savedir + DIR_DELIM + "map_meta.txt"),
1183 verbosestream<<FUNCTION_NAME<<std::endl;
1185 // Tell the EmergeManager about our MapSettingsManager
1186 emerge->map_settings_mgr = &settings_mgr;
1189 Try to load map; if not found, create a new one.
1192 // Determine which database backend to use
1193 std::string conf_path = savedir + DIR_DELIM + "world.mt";
1195 bool succeeded = conf.readConfigFile(conf_path.c_str());
1196 if (!succeeded || !conf.exists("backend")) {
1197 // fall back to sqlite3
1198 conf.set("backend", "sqlite3");
1200 std::string backend = conf.get("backend");
1201 dbase = createDatabase(backend, savedir, conf);
1203 if (!conf.updateConfigFile(conf_path.c_str()))
1204 errorstream << "ServerMap::ServerMap(): Failed to update world.mt!" << std::endl;
1206 m_savedir = savedir;
1207 m_map_saving_enabled = false;
1211 // If directory exists, check contents and load if possible
1212 if(fs::PathExists(m_savedir))
1214 // If directory is empty, it is safe to save into it.
1215 if(fs::GetDirListing(m_savedir).size() == 0)
1217 infostream<<"ServerMap: Empty save directory is valid."
1219 m_map_saving_enabled = true;
1224 if (settings_mgr.loadMapMeta()) {
1225 infostream << "ServerMap: Metadata loaded from "
1226 << savedir << std::endl;
1228 infostream << "ServerMap: Metadata could not be loaded "
1229 "from " << savedir << ", assuming valid save "
1230 "directory." << std::endl;
1233 m_map_saving_enabled = true;
1234 // Map loaded, not creating new one
1238 // If directory doesn't exist, it is safe to save to it
1240 m_map_saving_enabled = true;
1243 catch(std::exception &e)
1245 warningstream<<"ServerMap: Failed to load map from "<<savedir
1246 <<", exception: "<<e.what()<<std::endl;
1247 infostream<<"Please remove the map or fix it."<<std::endl;
1248 warningstream<<"Map saving will be disabled."<<std::endl;
1251 infostream<<"Initializing new map."<<std::endl;
1253 // Create zero sector
1254 emergeSector(v2s16(0,0));
1256 // Initially write whole map
1257 save(MOD_STATE_CLEAN);
1260 ServerMap::~ServerMap()
1262 verbosestream<<FUNCTION_NAME<<std::endl;
1266 if(m_map_saving_enabled)
1268 // Save only changed parts
1269 save(MOD_STATE_WRITE_AT_UNLOAD);
1270 infostream<<"ServerMap: Saved map to "<<m_savedir<<std::endl;
1274 infostream<<"ServerMap: Map not saved"<<std::endl;
1277 catch(std::exception &e)
1279 infostream<<"ServerMap: Failed to save map to "<<m_savedir
1280 <<", exception: "<<e.what()<<std::endl;
1284 Close database if it was opened
1292 core::map<v2s16, MapChunk*>::Iterator i = m_chunks.getIterator();
1293 for(; i.atEnd() == false; i++)
1295 MapChunk *chunk = i.getNode()->getValue();
1301 MapgenParams *ServerMap::getMapgenParams()
1303 // getMapgenParams() should only ever be called after Server is initialized
1304 assert(settings_mgr.mapgen_params != NULL);
1305 return settings_mgr.mapgen_params;
1308 u64 ServerMap::getSeed()
1310 return getMapgenParams()->seed;
1313 s16 ServerMap::getWaterLevel()
1315 return getMapgenParams()->water_level;
1318 bool ServerMap::saoPositionOverLimit(const v3f &p)
1320 return getMapgenParams()->saoPosOverLimit(p);
1323 bool ServerMap::blockpos_over_mapgen_limit(v3s16 p)
1325 const s16 mapgen_limit_bp = rangelim(
1326 getMapgenParams()->mapgen_limit, 0, MAX_MAP_GENERATION_LIMIT) /
1328 return p.X < -mapgen_limit_bp ||
1329 p.X > mapgen_limit_bp ||
1330 p.Y < -mapgen_limit_bp ||
1331 p.Y > mapgen_limit_bp ||
1332 p.Z < -mapgen_limit_bp ||
1333 p.Z > mapgen_limit_bp;
1336 bool ServerMap::initBlockMake(v3s16 blockpos, BlockMakeData *data)
1338 s16 csize = getMapgenParams()->chunksize;
1339 v3s16 bpmin = EmergeManager::getContainingChunk(blockpos, csize);
1340 v3s16 bpmax = bpmin + v3s16(1, 1, 1) * (csize - 1);
1342 bool enable_mapgen_debug_info = m_emerge->enable_mapgen_debug_info;
1343 EMERGE_DBG_OUT("initBlockMake(): " PP(bpmin) " - " PP(bpmax));
1345 v3s16 extra_borders(1, 1, 1);
1346 v3s16 full_bpmin = bpmin - extra_borders;
1347 v3s16 full_bpmax = bpmax + extra_borders;
1349 // Do nothing if not inside mapgen limits (+-1 because of neighbors)
1350 if (blockpos_over_mapgen_limit(full_bpmin) ||
1351 blockpos_over_mapgen_limit(full_bpmax))
1354 data->seed = getSeed();
1355 data->blockpos_min = bpmin;
1356 data->blockpos_max = bpmax;
1357 data->blockpos_requested = blockpos;
1358 data->nodedef = m_nodedef;
1361 Create the whole area of this and the neighboring blocks
1363 for (s16 x = full_bpmin.X; x <= full_bpmax.X; x++)
1364 for (s16 z = full_bpmin.Z; z <= full_bpmax.Z; z++) {
1365 v2s16 sectorpos(x, z);
1366 // Sector metadata is loaded from disk if not already loaded.
1367 ServerMapSector *sector = createSector(sectorpos);
1368 FATAL_ERROR_IF(sector == NULL, "createSector() failed");
1370 for (s16 y = full_bpmin.Y; y <= full_bpmax.Y; y++) {
1373 MapBlock *block = emergeBlock(p, false);
1374 if (block == NULL) {
1375 block = createBlock(p);
1377 // Block gets sunlight if this is true.
1378 // Refer to the map generator heuristics.
1379 bool ug = m_emerge->isBlockUnderground(p);
1380 block->setIsUnderground(ug);
1386 Now we have a big empty area.
1388 Make a ManualMapVoxelManipulator that contains this and the
1392 data->vmanip = new MMVManip(this);
1393 data->vmanip->initialEmerge(full_bpmin, full_bpmax);
1395 // Note: we may need this again at some point.
1397 // Ensure none of the blocks to be generated were marked as
1398 // containing CONTENT_IGNORE
1399 for (s16 z = blockpos_min.Z; z <= blockpos_max.Z; z++) {
1400 for (s16 y = blockpos_min.Y; y <= blockpos_max.Y; y++) {
1401 for (s16 x = blockpos_min.X; x <= blockpos_max.X; x++) {
1402 core::map<v3s16, u8>::Node *n;
1403 n = data->vmanip->m_loaded_blocks.find(v3s16(x, y, z));
1406 u8 flags = n->getValue();
1407 flags &= ~VMANIP_BLOCK_CONTAINS_CIGNORE;
1414 // Data is ready now.
1418 void ServerMap::finishBlockMake(BlockMakeData *data,
1419 std::map<v3s16, MapBlock*> *changed_blocks)
1421 v3s16 bpmin = data->blockpos_min;
1422 v3s16 bpmax = data->blockpos_max;
1424 v3s16 extra_borders(1, 1, 1);
1426 bool enable_mapgen_debug_info = m_emerge->enable_mapgen_debug_info;
1427 EMERGE_DBG_OUT("finishBlockMake(): " PP(bpmin) " - " PP(bpmax));
1430 Blit generated stuff to map
1431 NOTE: blitBackAll adds nearly everything to changed_blocks
1433 data->vmanip->blitBackAll(changed_blocks);
1435 EMERGE_DBG_OUT("finishBlockMake: changed_blocks.size()="
1436 << changed_blocks->size());
1439 Copy transforming liquid information
1441 while (data->transforming_liquid.size()) {
1442 m_transforming_liquid.push_back(data->transforming_liquid.front());
1443 data->transforming_liquid.pop_front();
1446 for (std::map<v3s16, MapBlock *>::iterator
1447 it = changed_blocks->begin();
1448 it != changed_blocks->end(); ++it) {
1449 MapBlock *block = it->second;
1453 Update day/night difference cache of the MapBlocks
1455 block->expireDayNightDiff();
1457 Set block as modified
1459 block->raiseModified(MOD_STATE_WRITE_NEEDED,
1460 MOD_REASON_EXPIRE_DAYNIGHTDIFF);
1464 Set central blocks as generated
1466 for (s16 x = bpmin.X; x <= bpmax.X; x++)
1467 for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
1468 for (s16 y = bpmin.Y; y <= bpmax.Y; y++) {
1469 MapBlock *block = getBlockNoCreateNoEx(v3s16(x, y, z));
1473 block->setGenerated(true);
1477 Save changed parts of map
1478 NOTE: Will be saved later.
1480 //save(MOD_STATE_WRITE_AT_UNLOAD);
1483 ServerMapSector *ServerMap::createSector(v2s16 p2d)
1485 DSTACKF("%s: p2d=(%d,%d)",
1490 Check if it exists already in memory
1492 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
1497 Try to load it from disk (with blocks)
1499 //if(loadSectorFull(p2d) == true)
1502 Try to load metadata from disk
1505 if(loadSectorMeta(p2d) == true)
1507 ServerMapSector *sector = (ServerMapSector*)getSectorNoGenerateNoEx(p2d);
1510 infostream<<"ServerMap::createSector(): loadSectorFull didn't make a sector"<<std::endl;
1511 throw InvalidPositionException("");
1518 Do not create over max mapgen limit
1520 const s16 max_limit_bp = MAX_MAP_GENERATION_LIMIT / MAP_BLOCKSIZE;
1521 if (p2d.X < -max_limit_bp ||
1522 p2d.X > max_limit_bp ||
1523 p2d.Y < -max_limit_bp ||
1524 p2d.Y > max_limit_bp)
1525 throw InvalidPositionException("createSector(): pos. over max mapgen limit");
1528 Generate blank sector
1531 sector = new ServerMapSector(this, p2d, m_gamedef);
1533 // Sector position on map in nodes
1534 //v2s16 nodepos2d = p2d * MAP_BLOCKSIZE;
1539 m_sectors[p2d] = sector;
1546 This is a quick-hand function for calling makeBlock().
1548 MapBlock * ServerMap::generateBlock(
1550 std::map<v3s16, MapBlock*> &modified_blocks
1553 DSTACKF("%s: p=(%d,%d,%d)", FUNCTION_NAME, p.X, p.Y, p.Z);
1555 /*infostream<<"generateBlock(): "
1556 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1559 bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
1561 TimeTaker timer("generateBlock");
1563 //MapBlock *block = original_dummy;
1565 v2s16 p2d(p.X, p.Z);
1566 v2s16 p2d_nodes = p2d * MAP_BLOCKSIZE;
1569 Do not generate over-limit
1571 if(blockpos_over_limit(p))
1573 infostream<<FUNCTION_NAME<<": Block position over limit"<<std::endl;
1574 throw InvalidPositionException("generateBlock(): pos. over limit");
1578 Create block make data
1581 initBlockMake(&data, p);
1587 TimeTaker t("mapgen::make_block()");
1588 mapgen->makeChunk(&data);
1589 //mapgen::make_block(&data);
1591 if(enable_mapgen_debug_info == false)
1592 t.stop(true); // Hide output
1596 Blit data back on map, update lighting, add mobs and whatever this does
1598 finishBlockMake(&data, modified_blocks);
1603 MapBlock *block = getBlockNoCreateNoEx(p);
1611 bool erroneus_content = false;
1612 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
1613 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
1614 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
1617 MapNode n = block->getNode(p);
1618 if(n.getContent() == CONTENT_IGNORE)
1620 infostream<<"CONTENT_IGNORE at "
1621 <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
1623 erroneus_content = true;
1627 if(erroneus_content)
1636 Generate a completely empty block
1640 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
1641 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
1643 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
1646 n.setContent(CONTENT_AIR);
1647 block->setNode(v3s16(x0,y0,z0), n);
1653 if(enable_mapgen_debug_info == false)
1654 timer.stop(true); // Hide output
1660 MapBlock * ServerMap::createBlock(v3s16 p)
1662 DSTACKF("%s: p=(%d,%d,%d)",
1663 FUNCTION_NAME, p.X, p.Y, p.Z);
1666 Do not create over max mapgen limit
1668 if (blockpos_over_max_limit(p))
1669 throw InvalidPositionException("createBlock(): pos. over max mapgen limit");
1671 v2s16 p2d(p.X, p.Z);
1674 This will create or load a sector if not found in memory.
1675 If block exists on disk, it will be loaded.
1677 NOTE: On old save formats, this will be slow, as it generates
1678 lighting on blocks for them.
1680 ServerMapSector *sector;
1682 sector = (ServerMapSector*)createSector(p2d);
1683 assert(sector->getId() == MAPSECTOR_SERVER);
1685 catch(InvalidPositionException &e)
1687 infostream<<"createBlock: createSector() failed"<<std::endl;
1691 NOTE: This should not be done, or at least the exception
1692 should not be passed on as std::exception, because it
1693 won't be catched at all.
1695 /*catch(std::exception &e)
1697 infostream<<"createBlock: createSector() failed: "
1698 <<e.what()<<std::endl;
1703 Try to get a block from the sector
1706 MapBlock *block = sector->getBlockNoCreateNoEx(block_y);
1709 if(block->isDummy())
1714 block = sector->createBlankBlock(block_y);
1719 MapBlock * ServerMap::emergeBlock(v3s16 p, bool create_blank)
1721 DSTACKF("%s: p=(%d,%d,%d), create_blank=%d",
1723 p.X, p.Y, p.Z, create_blank);
1726 MapBlock *block = getBlockNoCreateNoEx(p);
1727 if(block && block->isDummy() == false)
1732 MapBlock *block = loadBlock(p);
1738 ServerMapSector *sector = createSector(v2s16(p.X, p.Z));
1739 MapBlock *block = sector->createBlankBlock(p.Y);
1747 std::map<v3s16, MapBlock*> modified_blocks;
1748 MapBlock *block = generateBlock(p, modified_blocks);
1752 event.type = MEET_OTHER;
1755 // Copy modified_blocks to event
1756 for(std::map<v3s16, MapBlock*>::iterator
1757 i = modified_blocks.begin();
1758 i != modified_blocks.end(); ++i)
1760 event.modified_blocks.insert(i->first);
1764 dispatchEvent(&event);
1774 MapBlock *ServerMap::getBlockOrEmerge(v3s16 p3d)
1776 MapBlock *block = getBlockNoCreateNoEx(p3d);
1778 m_emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, p3d, false);
1783 // N.B. This requires no synchronization, since data will not be modified unless
1784 // the VoxelManipulator being updated belongs to the same thread.
1785 void ServerMap::updateVManip(v3s16 pos)
1787 Mapgen *mg = m_emerge->getCurrentMapgen();
1791 MMVManip *vm = mg->vm;
1795 if (!vm->m_area.contains(pos))
1798 s32 idx = vm->m_area.index(pos);
1799 vm->m_data[idx] = getNodeNoEx(pos);
1800 vm->m_flags[idx] &= ~VOXELFLAG_NO_DATA;
1802 vm->m_is_dirty = true;
1805 s16 ServerMap::findGroundLevel(v2s16 p2d)
1809 Uh, just do something random...
1811 // Find existing map from top to down
1814 v3s16 p(p2d.X, max, p2d.Y);
1815 for(; p.Y>min; p.Y--)
1817 MapNode n = getNodeNoEx(p);
1818 if(n.getContent() != CONTENT_IGNORE)
1823 // If this node is not air, go to plan b
1824 if(getNodeNoEx(p).getContent() != CONTENT_AIR)
1826 // Search existing walkable and return it
1827 for(; p.Y>min; p.Y--)
1829 MapNode n = getNodeNoEx(p);
1830 if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
1839 Determine from map generator noise functions
1842 s16 level = m_emerge->getGroundLevelAtPoint(p2d);
1845 //double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
1846 //return (s16)level;
1849 bool ServerMap::loadFromFolders() {
1850 if (!dbase->initialized() &&
1851 !fs::PathExists(m_savedir + DIR_DELIM + "map.sqlite"))
1856 void ServerMap::createDirs(std::string path)
1858 if(fs::CreateAllDirs(path) == false)
1860 m_dout<<"ServerMap: Failed to create directory "
1861 <<"\""<<path<<"\""<<std::endl;
1862 throw BaseException("ServerMap failed to create directory");
1866 std::string ServerMap::getSectorDir(v2s16 pos, int layout)
1872 snprintf(cc, 9, "%.4x%.4x",
1873 (unsigned int) pos.X & 0xffff,
1874 (unsigned int) pos.Y & 0xffff);
1876 return m_savedir + DIR_DELIM + "sectors" + DIR_DELIM + cc;
1878 snprintf(cc, 9, (std::string("%.3x") + DIR_DELIM + "%.3x").c_str(),
1879 (unsigned int) pos.X & 0xfff,
1880 (unsigned int) pos.Y & 0xfff);
1882 return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
1889 v2s16 ServerMap::getSectorPos(const std::string &dirname)
1891 unsigned int x = 0, y = 0;
1893 std::string component;
1894 fs::RemoveLastPathComponent(dirname, &component, 1);
1895 if(component.size() == 8)
1898 r = sscanf(component.c_str(), "%4x%4x", &x, &y);
1900 else if(component.size() == 3)
1903 fs::RemoveLastPathComponent(dirname, &component, 2);
1904 r = sscanf(component.c_str(), (std::string("%3x") + DIR_DELIM + "%3x").c_str(), &x, &y);
1905 // Sign-extend the 12 bit values up to 16 bits...
1906 if(x & 0x800) x |= 0xF000;
1907 if(y & 0x800) y |= 0xF000;
1914 FATAL_ERROR_IF(r != 2, "getSectorPos()");
1915 v2s16 pos((s16)x, (s16)y);
1919 v3s16 ServerMap::getBlockPos(const std::string §ordir, const std::string &blockfile)
1921 v2s16 p2d = getSectorPos(sectordir);
1923 if(blockfile.size() != 4){
1924 throw InvalidFilenameException("Invalid block filename");
1927 int r = sscanf(blockfile.c_str(), "%4x", &y);
1929 throw InvalidFilenameException("Invalid block filename");
1930 return v3s16(p2d.X, y, p2d.Y);
1933 std::string ServerMap::getBlockFilename(v3s16 p)
1936 snprintf(cc, 5, "%.4x", (unsigned int)p.Y&0xffff);
1940 void ServerMap::save(ModifiedState save_level)
1942 DSTACK(FUNCTION_NAME);
1943 if(m_map_saving_enabled == false) {
1944 warningstream<<"Not saving map, saving disabled."<<std::endl;
1948 if(save_level == MOD_STATE_CLEAN)
1949 infostream<<"ServerMap: Saving whole map, this can take time."
1952 if (m_map_metadata_changed || save_level == MOD_STATE_CLEAN) {
1953 if (settings_mgr.saveMapMeta())
1954 m_map_metadata_changed = false;
1957 // Profile modified reasons
1958 Profiler modprofiler;
1960 u32 sector_meta_count = 0;
1961 u32 block_count = 0;
1962 u32 block_count_all = 0; // Number of blocks in memory
1964 // Don't do anything with sqlite unless something is really saved
1965 bool save_started = false;
1967 for(std::map<v2s16, MapSector*>::iterator i = m_sectors.begin();
1968 i != m_sectors.end(); ++i) {
1969 ServerMapSector *sector = (ServerMapSector*)i->second;
1970 assert(sector->getId() == MAPSECTOR_SERVER);
1972 if(sector->differs_from_disk || save_level == MOD_STATE_CLEAN) {
1973 saveSectorMeta(sector);
1974 sector_meta_count++;
1977 MapBlockVect blocks;
1978 sector->getBlocks(blocks);
1980 for(MapBlockVect::iterator j = blocks.begin();
1981 j != blocks.end(); ++j) {
1982 MapBlock *block = *j;
1986 if(block->getModified() >= (u32)save_level) {
1990 save_started = true;
1993 modprofiler.add(block->getModifiedReasonString(), 1);
1998 /*infostream<<"ServerMap: Written block ("
1999 <<block->getPos().X<<","
2000 <<block->getPos().Y<<","
2001 <<block->getPos().Z<<")"
2011 Only print if something happened or saved whole map
2013 if(save_level == MOD_STATE_CLEAN || sector_meta_count != 0
2014 || block_count != 0) {
2015 infostream<<"ServerMap: Written: "
2016 <<sector_meta_count<<" sector metadata files, "
2017 <<block_count<<" block files"
2018 <<", "<<block_count_all<<" blocks in memory."
2020 PrintInfo(infostream); // ServerMap/ClientMap:
2021 infostream<<"Blocks modified by: "<<std::endl;
2022 modprofiler.print(infostream);
2026 void ServerMap::listAllLoadableBlocks(std::vector<v3s16> &dst)
2028 if (loadFromFolders()) {
2029 errorstream << "Map::listAllLoadableBlocks(): Result will be missing "
2030 << "all blocks that are stored in flat files." << std::endl;
2032 dbase->listAllLoadableBlocks(dst);
2035 void ServerMap::listAllLoadedBlocks(std::vector<v3s16> &dst)
2037 for(std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
2038 si != m_sectors.end(); ++si)
2040 MapSector *sector = si->second;
2042 MapBlockVect blocks;
2043 sector->getBlocks(blocks);
2045 for(MapBlockVect::iterator i = blocks.begin();
2046 i != blocks.end(); ++i) {
2047 v3s16 p = (*i)->getPos();
2053 void ServerMap::saveSectorMeta(ServerMapSector *sector)
2055 DSTACK(FUNCTION_NAME);
2056 // Format used for writing
2057 u8 version = SER_FMT_VER_HIGHEST_WRITE;
2059 v2s16 pos = sector->getPos();
2060 std::string dir = getSectorDir(pos);
2063 std::string fullpath = dir + DIR_DELIM + "meta";
2064 std::ostringstream ss(std::ios_base::binary);
2066 sector->serialize(ss, version);
2068 if(!fs::safeWriteToFile(fullpath, ss.str()))
2069 throw FileNotGoodException("Cannot write sector metafile");
2071 sector->differs_from_disk = false;
2074 MapSector* ServerMap::loadSectorMeta(std::string sectordir, bool save_after_load)
2076 DSTACK(FUNCTION_NAME);
2078 v2s16 p2d = getSectorPos(sectordir);
2080 ServerMapSector *sector = NULL;
2082 std::string fullpath = sectordir + DIR_DELIM + "meta";
2083 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
2084 if(is.good() == false)
2086 // If the directory exists anyway, it probably is in some old
2087 // format. Just go ahead and create the sector.
2088 if(fs::PathExists(sectordir))
2090 /*infostream<<"ServerMap::loadSectorMeta(): Sector metafile "
2091 <<fullpath<<" doesn't exist but directory does."
2092 <<" Continuing with a sector with no metadata."
2094 sector = new ServerMapSector(this, p2d, m_gamedef);
2095 m_sectors[p2d] = sector;
2099 throw FileNotGoodException("Cannot open sector metafile");
2104 sector = ServerMapSector::deSerialize
2105 (is, this, p2d, m_sectors, m_gamedef);
2107 saveSectorMeta(sector);
2110 sector->differs_from_disk = false;
2115 bool ServerMap::loadSectorMeta(v2s16 p2d)
2117 DSTACK(FUNCTION_NAME);
2119 // The directory layout we're going to load from.
2120 // 1 - original sectors/xxxxzzzz/
2121 // 2 - new sectors2/xxx/zzz/
2122 // If we load from anything but the latest structure, we will
2123 // immediately save to the new one, and remove the old.
2125 std::string sectordir1 = getSectorDir(p2d, 1);
2126 std::string sectordir;
2127 if(fs::PathExists(sectordir1))
2129 sectordir = sectordir1;
2134 sectordir = getSectorDir(p2d, 2);
2138 loadSectorMeta(sectordir, loadlayout != 2);
2140 catch(InvalidFilenameException &e)
2144 catch(FileNotGoodException &e)
2148 catch(std::exception &e)
2157 bool ServerMap::loadSectorFull(v2s16 p2d)
2159 DSTACK(FUNCTION_NAME);
2161 MapSector *sector = NULL;
2163 // The directory layout we're going to load from.
2164 // 1 - original sectors/xxxxzzzz/
2165 // 2 - new sectors2/xxx/zzz/
2166 // If we load from anything but the latest structure, we will
2167 // immediately save to the new one, and remove the old.
2169 std::string sectordir1 = getSectorDir(p2d, 1);
2170 std::string sectordir;
2171 if(fs::PathExists(sectordir1))
2173 sectordir = sectordir1;
2178 sectordir = getSectorDir(p2d, 2);
2182 sector = loadSectorMeta(sectordir, loadlayout != 2);
2184 catch(InvalidFilenameException &e)
2188 catch(FileNotGoodException &e)
2192 catch(std::exception &e)
2200 std::vector<fs::DirListNode> list2 = fs::GetDirListing
2202 std::vector<fs::DirListNode>::iterator i2;
2203 for(i2=list2.begin(); i2!=list2.end(); i2++)
2209 loadBlock(sectordir, i2->name, sector, loadlayout != 2);
2211 catch(InvalidFilenameException &e)
2213 // This catches unknown crap in directory
2219 infostream<<"Sector converted to new layout - deleting "<<
2220 sectordir1<<std::endl;
2221 fs::RecursiveDelete(sectordir1);
2228 MapDatabase *ServerMap::createDatabase(
2229 const std::string &name,
2230 const std::string &savedir,
2233 if (name == "sqlite3")
2234 return new MapDatabaseSQLite3(savedir);
2235 if (name == "dummy")
2236 return new Database_Dummy();
2238 else if (name == "leveldb")
2239 return new Database_LevelDB(savedir);
2242 else if (name == "redis")
2243 return new Database_Redis(conf);
2246 else if (name == "postgresql") {
2247 std::string connect_string = "";
2248 conf.getNoEx("pgsql_connection", connect_string);
2249 return new MapDatabasePostgreSQL(connect_string);
2253 throw BaseException(std::string("Database backend ") + name + " not supported.");
2256 void ServerMap::beginSave()
2261 void ServerMap::endSave()
2266 bool ServerMap::saveBlock(MapBlock *block)
2268 return saveBlock(block, dbase);
2271 bool ServerMap::saveBlock(MapBlock *block, MapDatabase *db)
2273 v3s16 p3d = block->getPos();
2275 // Dummy blocks are not written
2276 if (block->isDummy()) {
2277 warningstream << "saveBlock: Not writing dummy block "
2278 << PP(p3d) << std::endl;
2282 // Format used for writing
2283 u8 version = SER_FMT_VER_HIGHEST_WRITE;
2286 [0] u8 serialization version
2289 std::ostringstream o(std::ios_base::binary);
2290 o.write((char*) &version, 1);
2291 block->serialize(o, version, true);
2293 std::string data = o.str();
2294 bool ret = db->saveBlock(p3d, data);
2296 // We just wrote it to the disk so clear modified flag
2297 block->resetModified();
2302 void ServerMap::loadBlock(const std::string §ordir, const std::string &blockfile,
2303 MapSector *sector, bool save_after_load)
2305 DSTACK(FUNCTION_NAME);
2307 std::string fullpath = sectordir + DIR_DELIM + blockfile;
2309 std::ifstream is(fullpath.c_str(), std::ios_base::binary);
2311 throw FileNotGoodException("Cannot open block file");
2313 v3s16 p3d = getBlockPos(sectordir, blockfile);
2314 v2s16 p2d(p3d.X, p3d.Z);
2316 assert(sector->getPos() == p2d);
2318 u8 version = SER_FMT_VER_INVALID;
2319 is.read((char*)&version, 1);
2322 throw SerializationError("ServerMap::loadBlock(): Failed"
2323 " to read MapBlock version");
2325 /*u32 block_size = MapBlock::serializedLength(version);
2326 SharedBuffer<u8> data(block_size);
2327 is.read((char*)*data, block_size);*/
2329 // This will always return a sector because we're the server
2330 //MapSector *sector = emergeSector(p2d);
2332 MapBlock *block = NULL;
2333 bool created_new = false;
2334 block = sector->getBlockNoCreateNoEx(p3d.Y);
2337 block = sector->createBlankBlockNoInsert(p3d.Y);
2342 block->deSerialize(is, version, true);
2344 // If it's a new block, insert it to the map
2346 sector->insertBlock(block);
2347 ReflowScan scanner(this, m_emerge->ndef);
2348 scanner.scan(block, &m_transforming_liquid);
2352 Save blocks loaded in old format in new format
2355 if(version < SER_FMT_VER_HIGHEST_WRITE || save_after_load)
2359 // Should be in database now, so delete the old file
2360 fs::RecursiveDelete(fullpath);
2363 // We just loaded it from the disk, so it's up-to-date.
2364 block->resetModified();
2367 catch(SerializationError &e)
2369 warningstream<<"Invalid block data on disk "
2370 <<"fullpath="<<fullpath
2371 <<" (SerializationError). "
2372 <<"what()="<<e.what()
2374 // Ignoring. A new one will be generated.
2377 // TODO: Backup file; name is in fullpath.
2381 void ServerMap::loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load)
2383 DSTACK(FUNCTION_NAME);
2386 std::istringstream is(*blob, std::ios_base::binary);
2388 u8 version = SER_FMT_VER_INVALID;
2389 is.read((char*)&version, 1);
2392 throw SerializationError("ServerMap::loadBlock(): Failed"
2393 " to read MapBlock version");
2395 MapBlock *block = NULL;
2396 bool created_new = false;
2397 block = sector->getBlockNoCreateNoEx(p3d.Y);
2400 block = sector->createBlankBlockNoInsert(p3d.Y);
2405 block->deSerialize(is, version, true);
2407 // If it's a new block, insert it to the map
2409 sector->insertBlock(block);
2410 ReflowScan scanner(this, m_emerge->ndef);
2411 scanner.scan(block, &m_transforming_liquid);
2415 Save blocks loaded in old format in new format
2418 //if(version < SER_FMT_VER_HIGHEST_READ || save_after_load)
2419 // Only save if asked to; no need to update version
2423 // We just loaded it from, so it's up-to-date.
2424 block->resetModified();
2426 catch(SerializationError &e)
2428 errorstream<<"Invalid block data in database"
2429 <<" ("<<p3d.X<<","<<p3d.Y<<","<<p3d.Z<<")"
2430 <<" (SerializationError): "<<e.what()<<std::endl;
2432 // TODO: Block should be marked as invalid in memory so that it is
2433 // not touched but the game can run
2435 if(g_settings->getBool("ignore_world_load_errors")){
2436 errorstream<<"Ignoring block load error. Duck and cover! "
2437 <<"(ignore_world_load_errors)"<<std::endl;
2439 throw SerializationError("Invalid block data in database");
2444 MapBlock* ServerMap::loadBlock(v3s16 blockpos)
2446 DSTACK(FUNCTION_NAME);
2448 bool created_new = (getBlockNoCreateNoEx(blockpos) == NULL);
2450 v2s16 p2d(blockpos.X, blockpos.Z);
2453 dbase->loadBlock(blockpos, &ret);
2455 loadBlock(&ret, blockpos, createSector(p2d), false);
2457 // Not found in database, try the files
2459 // The directory layout we're going to load from.
2460 // 1 - original sectors/xxxxzzzz/
2461 // 2 - new sectors2/xxx/zzz/
2462 // If we load from anything but the latest structure, we will
2463 // immediately save to the new one, and remove the old.
2465 std::string sectordir1 = getSectorDir(p2d, 1);
2466 std::string sectordir;
2467 if (fs::PathExists(sectordir1)) {
2468 sectordir = sectordir1;
2471 sectordir = getSectorDir(p2d, 2);
2475 Make sure sector is loaded
2478 MapSector *sector = getSectorNoGenerateNoEx(p2d);
2479 if (sector == NULL) {
2481 sector = loadSectorMeta(sectordir, loadlayout != 2);
2482 } catch(InvalidFilenameException &e) {
2484 } catch(FileNotGoodException &e) {
2486 } catch(std::exception &e) {
2493 Make sure file exists
2496 std::string blockfilename = getBlockFilename(blockpos);
2497 if (fs::PathExists(sectordir + DIR_DELIM + blockfilename) == false)
2501 Load block and save it to the database
2503 loadBlock(sectordir, blockfilename, sector, true);
2505 MapBlock *block = getBlockNoCreateNoEx(blockpos);
2506 if (created_new && (block != NULL)) {
2507 std::map<v3s16, MapBlock*> modified_blocks;
2508 // Fix lighting if necessary
2509 voxalgo::update_block_border_lighting(this, block, modified_blocks);
2510 if (!modified_blocks.empty()) {
2511 //Modified lighting, send event
2513 event.type = MEET_OTHER;
2514 std::map<v3s16, MapBlock *>::iterator it;
2515 for (it = modified_blocks.begin();
2516 it != modified_blocks.end(); ++it)
2517 event.modified_blocks.insert(it->first);
2518 dispatchEvent(&event);
2524 bool ServerMap::deleteBlock(v3s16 blockpos)
2526 if (!dbase->deleteBlock(blockpos))
2529 MapBlock *block = getBlockNoCreateNoEx(blockpos);
2531 v2s16 p2d(blockpos.X, blockpos.Z);
2532 MapSector *sector = getSectorNoGenerateNoEx(p2d);
2535 sector->deleteBlock(block);
2541 void ServerMap::PrintInfo(std::ostream &out)
2546 bool ServerMap::repairBlockLight(v3s16 blockpos,
2547 std::map<v3s16, MapBlock *> *modified_blocks)
2549 MapBlock *block = emergeBlock(blockpos, false);
2550 if (!block || !block->isGenerated())
2552 voxalgo::repair_block_light(this, block, modified_blocks);
2556 MMVManip::MMVManip(Map *map):
2562 MMVManip::~MMVManip()
2566 void MMVManip::initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
2567 bool load_if_inexistent)
2569 TimeTaker timer1("initialEmerge", &emerge_time);
2571 // Units of these are MapBlocks
2572 v3s16 p_min = blockpos_min;
2573 v3s16 p_max = blockpos_max;
2575 VoxelArea block_area_nodes
2576 (p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
2578 u32 size_MB = block_area_nodes.getVolume()*4/1000000;
2581 infostream<<"initialEmerge: area: ";
2582 block_area_nodes.print(infostream);
2583 infostream<<" ("<<size_MB<<"MB)";
2584 infostream<<std::endl;
2587 addArea(block_area_nodes);
2589 for(s32 z=p_min.Z; z<=p_max.Z; z++)
2590 for(s32 y=p_min.Y; y<=p_max.Y; y++)
2591 for(s32 x=p_min.X; x<=p_max.X; x++)
2596 std::map<v3s16, u8>::iterator n;
2597 n = m_loaded_blocks.find(p);
2598 if(n != m_loaded_blocks.end())
2601 bool block_data_inexistent = false;
2604 TimeTaker timer1("emerge load", &emerge_load_time);
2606 block = m_map->getBlockNoCreate(p);
2607 if(block->isDummy())
2608 block_data_inexistent = true;
2610 block->copyTo(*this);
2612 catch(InvalidPositionException &e)
2614 block_data_inexistent = true;
2617 if(block_data_inexistent)
2620 if (load_if_inexistent && !blockpos_over_max_limit(p)) {
2621 ServerMap *svrmap = (ServerMap *)m_map;
2622 block = svrmap->emergeBlock(p, false);
2624 block = svrmap->createBlock(p);
2625 block->copyTo(*this);
2627 flags |= VMANIP_BLOCK_DATA_INEXIST;
2630 Mark area inexistent
2632 VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
2633 // Fill with VOXELFLAG_NO_DATA
2634 for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
2635 for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
2637 s32 i = m_area.index(a.MinEdge.X,y,z);
2638 memset(&m_flags[i], VOXELFLAG_NO_DATA, MAP_BLOCKSIZE);
2642 /*else if (block->getNode(0, 0, 0).getContent() == CONTENT_IGNORE)
2644 // Mark that block was loaded as blank
2645 flags |= VMANIP_BLOCK_CONTAINS_CIGNORE;
2648 m_loaded_blocks[p] = flags;
2654 void MMVManip::blitBackAll(std::map<v3s16, MapBlock*> *modified_blocks,
2655 bool overwrite_generated)
2657 if(m_area.getExtent() == v3s16(0,0,0))
2661 Copy data of all blocks
2663 for(std::map<v3s16, u8>::iterator
2664 i = m_loaded_blocks.begin();
2665 i != m_loaded_blocks.end(); ++i)
2668 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
2669 bool existed = !(i->second & VMANIP_BLOCK_DATA_INEXIST);
2670 if ((existed == false) || (block == NULL) ||
2671 (overwrite_generated == false && block->isGenerated() == true))
2674 block->copyFrom(*this);
2677 (*modified_blocks)[p] = block;