3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 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 General Public License for more details.
15 You should have received a copy of the GNU 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.
20 #include "environment.h"
23 #include "collision.h"
24 #include "content_mapnode.h"
26 #include "serverobject.h"
27 #include "content_sao.h"
29 Environment::Environment():
34 Environment::~Environment()
37 for(core::list<Player*>::Iterator i = m_players.begin();
38 i != m_players.end(); i++)
44 void Environment::addPlayer(Player *player)
46 DSTACK(__FUNCTION_NAME);
48 Check that peer_ids are unique.
49 Also check that names are unique.
50 Exception: there can be multiple players with peer_id=0
52 // If peer id is non-zero, it has to be unique.
53 if(player->peer_id != 0)
54 assert(getPlayer(player->peer_id) == NULL);
55 // Name has to be unique.
56 assert(getPlayer(player->getName()) == NULL);
58 m_players.push_back(player);
61 void Environment::removePlayer(u16 peer_id)
63 DSTACK(__FUNCTION_NAME);
65 for(core::list<Player*>::Iterator i = m_players.begin();
66 i != m_players.end(); i++)
69 if(player->peer_id != peer_id)
74 // See if there is an another one
75 // (shouldn't be, but just to be sure)
80 Player * Environment::getPlayer(u16 peer_id)
82 for(core::list<Player*>::Iterator i = m_players.begin();
83 i != m_players.end(); i++)
86 if(player->peer_id == peer_id)
92 Player * Environment::getPlayer(const char *name)
94 for(core::list<Player*>::Iterator i = m_players.begin();
95 i != m_players.end(); i++)
98 if(strcmp(player->getName(), name) == 0)
104 Player * Environment::getRandomConnectedPlayer()
106 core::list<Player*> connected_players = getPlayers(true);
107 u32 chosen_one = myrand() % connected_players.size();
109 for(core::list<Player*>::Iterator
110 i = connected_players.begin();
111 i != connected_players.end(); i++)
123 Player * Environment::getNearestConnectedPlayer(v3f pos)
125 core::list<Player*> connected_players = getPlayers(true);
127 Player *nearest_player = NULL;
128 for(core::list<Player*>::Iterator
129 i = connected_players.begin();
130 i != connected_players.end(); i++)
133 f32 d = player->getPosition().getDistanceFrom(pos);
134 if(d < nearest_d || nearest_player == NULL)
137 nearest_player = player;
140 return nearest_player;
143 core::list<Player*> Environment::getPlayers()
148 core::list<Player*> Environment::getPlayers(bool ignore_disconnected)
150 core::list<Player*> newlist;
151 for(core::list<Player*>::Iterator
152 i = m_players.begin();
153 i != m_players.end(); i++)
157 if(ignore_disconnected)
159 // Ignore disconnected players
160 if(player->peer_id == 0)
164 newlist.push_back(player);
169 void Environment::printPlayers(std::ostream &o)
171 o<<"Players in environment:"<<std::endl;
172 for(core::list<Player*>::Iterator i = m_players.begin();
173 i != m_players.end(); i++)
176 o<<"Player peer_id="<<player->peer_id<<std::endl;
180 /*void Environment::setDayNightRatio(u32 r)
182 getDayNightRatio() = r;
185 u32 Environment::getDayNightRatio()
187 //return getDayNightRatio();
188 return time_to_daynight_ratio(m_time_of_day);
195 void fillRadiusBlock(v3s16 p0, s16 r, core::map<v3s16, bool> &list)
198 for(p.X=p0.X-r; p.X<=p0.X+r; p.X++)
199 for(p.Y=p0.Y-r; p.Y<=p0.Y+r; p.Y++)
200 for(p.Z=p0.Z-r; p.Z<=p0.Z+r; p.Z++)
207 void ActiveBlockList::update(core::list<v3s16> &active_positions,
209 core::map<v3s16, bool> &blocks_removed,
210 core::map<v3s16, bool> &blocks_added)
215 core::map<v3s16, bool> newlist;
216 for(core::list<v3s16>::Iterator i = active_positions.begin();
217 i != active_positions.end(); i++)
219 fillRadiusBlock(*i, radius, newlist);
223 Find out which blocks on the old list are not on the new list
225 // Go through old list
226 for(core::map<v3s16, bool>::Iterator i = m_list.getIterator();
227 i.atEnd()==false; i++)
229 v3s16 p = i.getNode()->getKey();
230 // If not on new list, it's been removed
231 if(newlist.find(p) == NULL)
232 blocks_removed.insert(p, true);
236 Find out which blocks on the new list are not on the old list
238 // Go through new list
239 for(core::map<v3s16, bool>::Iterator i = newlist.getIterator();
240 i.atEnd()==false; i++)
242 v3s16 p = i.getNode()->getKey();
243 // If not on old list, it's been added
244 if(m_list.find(p) == NULL)
245 blocks_added.insert(p, true);
252 for(core::map<v3s16, bool>::Iterator i = newlist.getIterator();
253 i.atEnd()==false; i++)
255 v3s16 p = i.getNode()->getKey();
256 m_list.insert(p, true);
264 ServerEnvironment::ServerEnvironment(ServerMap *map, Server *server):
267 m_random_spawn_timer(3),
268 m_send_recommended_timer(0),
270 m_game_time_fraction_counter(0)
274 ServerEnvironment::~ServerEnvironment()
276 // Clear active block list.
277 // This makes the next one delete all active objects.
278 m_active_blocks.clear();
280 // Convert all objects to static and delete the active objects
281 deactivateFarObjects(true);
287 void ServerEnvironment::serializePlayers(const std::string &savedir)
289 std::string players_path = savedir + "/players";
290 fs::CreateDir(players_path);
292 core::map<Player*, bool> saved_players;
294 std::vector<fs::DirListNode> player_files = fs::GetDirListing(players_path);
295 for(u32 i=0; i<player_files.size(); i++)
297 if(player_files[i].dir)
300 // Full path to this file
301 std::string path = players_path + "/" + player_files[i].name;
303 //dstream<<"Checking player file "<<path<<std::endl;
305 // Load player to see what is its name
306 ServerRemotePlayer testplayer;
308 // Open file and deserialize
309 std::ifstream is(path.c_str(), std::ios_base::binary);
310 if(is.good() == false)
312 dstream<<"Failed to read "<<path<<std::endl;
315 testplayer.deSerialize(is);
318 //dstream<<"Loaded test player with name "<<testplayer.getName()<<std::endl;
320 // Search for the player
321 std::string playername = testplayer.getName();
322 Player *player = getPlayer(playername.c_str());
325 dstream<<"Didn't find matching player, ignoring file "<<path<<std::endl;
329 //dstream<<"Found matching player, overwriting."<<std::endl;
331 // OK, found. Save player there.
333 // Open file and serialize
334 std::ofstream os(path.c_str(), std::ios_base::binary);
335 if(os.good() == false)
337 dstream<<"Failed to overwrite "<<path<<std::endl;
340 player->serialize(os);
341 saved_players.insert(player, true);
345 for(core::list<Player*>::Iterator i = m_players.begin();
346 i != m_players.end(); i++)
349 if(saved_players.find(player) != NULL)
351 /*dstream<<"Player "<<player->getName()
352 <<" was already saved."<<std::endl;*/
355 std::string playername = player->getName();
356 // Don't save unnamed player
359 //dstream<<"Not saving unnamed player."<<std::endl;
365 if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS) == false)
366 playername = "player";
367 std::string path = players_path + "/" + playername;
369 for(u32 i=0; i<1000; i++)
371 if(fs::PathExists(path) == false)
376 path = players_path + "/" + playername + itos(i);
380 dstream<<"WARNING: Didn't find free file for player"<<std::endl;
385 /*dstream<<"Saving player "<<player->getName()<<" to "
387 // Open file and serialize
388 std::ofstream os(path.c_str(), std::ios_base::binary);
389 if(os.good() == false)
391 dstream<<"WARNING: Failed to overwrite "<<path<<std::endl;
394 player->serialize(os);
395 saved_players.insert(player, true);
399 //dstream<<"Saved "<<saved_players.size()<<" players."<<std::endl;
402 void ServerEnvironment::deSerializePlayers(const std::string &savedir)
404 std::string players_path = savedir + "/players";
406 core::map<Player*, bool> saved_players;
408 std::vector<fs::DirListNode> player_files = fs::GetDirListing(players_path);
409 for(u32 i=0; i<player_files.size(); i++)
411 if(player_files[i].dir)
414 // Full path to this file
415 std::string path = players_path + "/" + player_files[i].name;
417 dstream<<"Checking player file "<<path<<std::endl;
419 // Load player to see what is its name
420 ServerRemotePlayer testplayer;
422 // Open file and deserialize
423 std::ifstream is(path.c_str(), std::ios_base::binary);
424 if(is.good() == false)
426 dstream<<"Failed to read "<<path<<std::endl;
429 testplayer.deSerialize(is);
432 if(!string_allowed(testplayer.getName(), PLAYERNAME_ALLOWED_CHARS))
434 dstream<<"Not loading player with invalid name: "
435 <<testplayer.getName()<<std::endl;
438 dstream<<"Loaded test player with name "<<testplayer.getName()
441 // Search for the player
442 std::string playername = testplayer.getName();
443 Player *player = getPlayer(playername.c_str());
444 bool newplayer = false;
447 dstream<<"Is a new player"<<std::endl;
448 player = new ServerRemotePlayer();
454 dstream<<"Reading player "<<testplayer.getName()<<" from "
456 // Open file and deserialize
457 std::ifstream is(path.c_str(), std::ios_base::binary);
458 if(is.good() == false)
460 dstream<<"Failed to read "<<path<<std::endl;
463 player->deSerialize(is);
471 void ServerEnvironment::saveMeta(const std::string &savedir)
473 std::string path = savedir + "/env_meta.txt";
475 // Open file and serialize
476 std::ofstream os(path.c_str(), std::ios_base::binary);
477 if(os.good() == false)
479 dstream<<"WARNING: ServerEnvironment::saveMeta(): Failed to open "
481 throw SerializationError("Couldn't save env meta");
485 args.setU64("game_time", m_game_time);
486 args.setU64("time_of_day", getTimeOfDay());
491 void ServerEnvironment::loadMeta(const std::string &savedir)
493 std::string path = savedir + "/env_meta.txt";
495 // Open file and deserialize
496 std::ifstream is(path.c_str(), std::ios_base::binary);
497 if(is.good() == false)
499 dstream<<"WARNING: ServerEnvironment::loadMeta(): Failed to open "
501 throw SerializationError("Couldn't load env meta");
509 throw SerializationError
510 ("ServerEnvironment::loadMeta(): EnvArgsEnd not found");
512 std::getline(is, line);
513 std::string trimmedline = trim(line);
514 if(trimmedline == "EnvArgsEnd")
516 args.parseConfigLine(line);
520 m_game_time = args.getU64("game_time");
521 }catch(SettingNotFoundException &e){
522 // Getting this is crucial, otherwise timestamps are useless
523 throw SerializationError("Couldn't load env meta game_time");
527 m_time_of_day = args.getU64("time_of_day");
528 }catch(SettingNotFoundException &e){
529 // This is not as important
530 m_time_of_day = 9000;
535 // This is probably very useless
536 void spawnRandomObjects(MapBlock *block)
538 for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
539 for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
541 bool last_node_walkable = false;
542 for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
545 MapNode n = block->getNodeNoEx(p);
546 if(n.d == CONTENT_IGNORE)
548 if(content_features(n.d).liquid_type != LIQUID_NONE)
550 if(content_features(n.d).walkable)
552 last_node_walkable = true;
555 if(last_node_walkable)
557 // If block contains light information
558 if(content_features(n.d).param_type == CPT_LIGHT)
560 if(n.getLight(LIGHTBANK_DAY) <= 5)
562 if(myrand() % 1000 == 0)
564 v3f pos_f = intToFloat(p+block->getPosRelative(), BS);
566 ServerActiveObject *obj = new Oerkki1SAO(NULL,0,pos_f);
567 std::string data = obj->getStaticData();
568 StaticObject s_obj(obj->getType(),
569 obj->getBasePosition(), data);
571 block->m_static_objects.insert(0, s_obj);
573 block->setChangedFlag();
578 last_node_walkable = false;
584 void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
586 // Get time difference
588 u32 stamp = block->getTimestamp();
589 if(m_game_time > stamp && stamp != BLOCK_TIMESTAMP_UNDEFINED)
590 dtime_s = m_game_time - block->getTimestamp();
591 dtime_s += additional_dtime;
593 // Set current time as timestamp (and let it set ChangedFlag)
594 block->setTimestamp(m_game_time);
596 //dstream<<"Block is "<<dtime_s<<" seconds old."<<std::endl;
598 // Activate stored objects
599 activateObjects(block);
602 bool changed = block->m_node_metadata.step((float)dtime_s);
606 event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
607 event.p = block->getPos();
608 m_map->dispatchEvent(&event);
610 block->setChangedFlag();
613 // TODO: Do something
614 // TODO: Implement usage of ActiveBlockModifier
616 // Here's a quick demonstration
618 for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
619 for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
620 for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
622 v3s16 p = p0 + block->getPosRelative();
623 MapNode n = block->getNodeNoEx(p0);
626 // Convert all mud under proper day lighting to grass
627 if(n.d == CONTENT_MUD)
631 MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
632 if(content_features(n_top.d).air_equivalent &&
633 n_top.getLight(LIGHTBANK_DAY) >= 13)
636 m_map->addNodeWithEvent(p, n);
644 void ServerEnvironment::step(float dtime)
646 DSTACK(__FUNCTION_NAME);
648 //TimeTaker timer("ServerEnv step");
651 bool footprints = g_settings.getBool("footprints");
657 m_game_time_fraction_counter += dtime;
658 u32 inc_i = (u32)m_game_time_fraction_counter;
659 m_game_time += inc_i;
660 m_game_time_fraction_counter -= (float)inc_i;
666 for(core::list<Player*>::Iterator i = m_players.begin();
667 i != m_players.end(); i++)
671 // Ignore disconnected players
672 if(player->peer_id == 0)
675 v3f playerpos = player->getPosition();
678 player->move(dtime, *m_map, 100*BS);
681 Add footsteps to grass
685 // Get node that is at BS/4 under player
686 v3s16 bottompos = floatToInt(playerpos + v3f(0,-BS/4,0), BS);
688 MapNode n = m_map->getNode(bottompos);
689 if(n.d == CONTENT_GRASS)
691 n.d = CONTENT_GRASS_FOOTSTEPS;
692 m_map->setNode(bottompos, n);
695 catch(InvalidPositionException &e)
702 Manage active block list
704 if(m_active_blocks_management_interval.step(dtime, 2.0))
707 Get player block positions
709 core::list<v3s16> players_blockpos;
710 for(core::list<Player*>::Iterator
711 i = m_players.begin();
712 i != m_players.end(); i++)
715 // Ignore disconnected players
716 if(player->peer_id == 0)
718 v3s16 blockpos = getNodeBlockPos(
719 floatToInt(player->getPosition(), BS));
720 players_blockpos.push_back(blockpos);
724 Update list of active blocks, collecting changes
726 const s16 active_block_range = 5;
727 core::map<v3s16, bool> blocks_removed;
728 core::map<v3s16, bool> blocks_added;
729 m_active_blocks.update(players_blockpos, active_block_range,
730 blocks_removed, blocks_added);
733 Handle removed blocks
736 // Convert active objects that are no more in active blocks to static
737 deactivateFarObjects(false);
739 for(core::map<v3s16, bool>::Iterator
740 i = blocks_removed.getIterator();
741 i.atEnd()==false; i++)
743 v3s16 p = i.getNode()->getKey();
745 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
746 <<") became inactive"<<std::endl;*/
748 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
752 // Set current time as timestamp (and let it set ChangedFlag)
753 block->setTimestamp(m_game_time);
760 for(core::map<v3s16, bool>::Iterator
761 i = blocks_added.getIterator();
762 i.atEnd()==false; i++)
764 v3s16 p = i.getNode()->getKey();
766 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
767 <<") became active"<<std::endl;*/
769 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
773 activateBlock(block);
778 Mess around in active blocks
780 if(m_active_blocks_nodemetadata_interval.step(dtime, 1.0))
784 for(core::map<v3s16, bool>::Iterator
785 i = m_active_blocks.m_list.getIterator();
786 i.atEnd()==false; i++)
788 v3s16 p = i.getNode()->getKey();
790 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
791 <<") being handled"<<std::endl;*/
793 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
797 // Reset block usage timer
798 block->resetUsageTimer();
800 // Set current time as timestamp
801 block->setTimestampNoChangedFlag(m_game_time);
804 bool changed = block->m_node_metadata.step(dtime);
808 event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
810 m_map->dispatchEvent(&event);
812 block->setChangedFlag();
816 if(m_active_blocks_test_interval.step(dtime, 10.0))
818 //float dtime = 10.0;
820 for(core::map<v3s16, bool>::Iterator
821 i = m_active_blocks.m_list.getIterator();
822 i.atEnd()==false; i++)
824 v3s16 p = i.getNode()->getKey();
826 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
827 <<") being handled"<<std::endl;*/
829 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
833 // Set current time as timestamp
834 block->setTimestampNoChangedFlag(m_game_time);
839 Note that map modifications should be done using the event-
840 making map methods so that the server gets information
843 Reading can be done quickly directly from the block.
845 Everything should bind to inside this single content
846 searching loop to keep things fast.
848 // TODO: Implement usage of ActiveBlockModifier
851 for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
852 for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
853 for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
855 v3s16 p = p0 + block->getPosRelative();
856 MapNode n = block->getNodeNoEx(p0);
860 Convert mud under proper lighting to grass
862 if(n.d == CONTENT_MUD)
866 MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
867 if(content_features(n_top.d).air_equivalent &&
868 n_top.getLightBlend(getDayNightRatio()) >= 13)
871 m_map->addNodeWithEvent(p, n);
876 Convert grass into mud if under something else than air
878 else if(n.d == CONTENT_GRASS)
880 //if(myrand()%20 == 0)
882 MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
883 if(n_top.d != CONTENT_AIR
884 && n_top.d != CONTENT_IGNORE)
887 m_map->addNodeWithEvent(p, n);
899 //TimeTaker timer("Step active objects");
901 // This helps the objects to send data at the same time
902 bool send_recommended = false;
903 m_send_recommended_timer += dtime;
904 if(m_send_recommended_timer > 0.15)
906 m_send_recommended_timer = 0;
907 send_recommended = true;
910 for(core::map<u16, ServerActiveObject*>::Iterator
911 i = m_active_objects.getIterator();
912 i.atEnd()==false; i++)
914 ServerActiveObject* obj = i.getNode()->getValue();
915 // Don't step if is to be removed or stored statically
916 if(obj->m_removed || obj->m_pending_deactivation)
919 obj->step(dtime, send_recommended);
920 // Read messages from object
921 while(obj->m_messages_out.size() > 0)
923 m_active_object_messages.push_back(
924 obj->m_messages_out.pop_front());
930 Manage active objects
932 if(m_object_management_interval.step(dtime, 0.5))
935 Remove objects that satisfy (m_removed && m_known_by_count==0)
937 removeRemovedObjects();
940 if(g_settings.getBool("enable_experimental"))
947 m_random_spawn_timer -= dtime;
948 if(m_random_spawn_timer < 0)
950 //m_random_spawn_timer += myrand_range(2.0, 20.0);
951 //m_random_spawn_timer += 2.0;
952 m_random_spawn_timer += 200.0;
958 /*v2s16 p2d(myrand_range(-5,5), myrand_range(-5,5));
959 s16 y = 1 + getServerMap().findGroundLevel(p2d);
960 v3f pos(p2d.X*BS,y*BS,p2d.Y*BS);*/
962 Player *player = getRandomConnectedPlayer();
965 pos = player->getPosition();
967 myrand_range(-3,3)*BS,
969 myrand_range(-3,3)*BS
973 Create a ServerActiveObject
976 //TestSAO *obj = new TestSAO(this, 0, pos);
977 //ServerActiveObject *obj = new ItemSAO(this, 0, pos, "CraftItem Stick 1");
978 //ServerActiveObject *obj = new RatSAO(this, 0, pos);
979 ServerActiveObject *obj = new Oerkki1SAO(this, 0, pos);
980 addActiveObject(obj);
984 } // enable_experimental
987 ServerActiveObject* ServerEnvironment::getActiveObject(u16 id)
989 core::map<u16, ServerActiveObject*>::Node *n;
990 n = m_active_objects.find(id);
993 return n->getValue();
996 bool isFreeServerActiveObjectId(u16 id,
997 core::map<u16, ServerActiveObject*> &objects)
1002 for(core::map<u16, ServerActiveObject*>::Iterator
1003 i = objects.getIterator();
1004 i.atEnd()==false; i++)
1006 if(i.getNode()->getKey() == id)
1012 u16 getFreeServerActiveObjectId(
1013 core::map<u16, ServerActiveObject*> &objects)
1018 if(isFreeServerActiveObjectId(new_id, objects))
1028 u16 ServerEnvironment::addActiveObject(ServerActiveObject *object)
1031 u16 id = addActiveObjectRaw(object, true);
1036 Finds out what new objects have been added to
1037 inside a radius around a position
1039 void ServerEnvironment::getAddedActiveObjects(v3s16 pos, s16 radius,
1040 core::map<u16, bool> ¤t_objects,
1041 core::map<u16, bool> &added_objects)
1043 v3f pos_f = intToFloat(pos, BS);
1044 f32 radius_f = radius * BS;
1046 Go through the object list,
1047 - discard m_removed objects,
1048 - discard objects that are too far away,
1049 - discard objects that are found in current_objects.
1050 - add remaining objects to added_objects
1052 for(core::map<u16, ServerActiveObject*>::Iterator
1053 i = m_active_objects.getIterator();
1054 i.atEnd()==false; i++)
1056 u16 id = i.getNode()->getKey();
1058 ServerActiveObject *object = i.getNode()->getValue();
1061 // Discard if removed
1062 if(object->m_removed)
1064 // Discard if too far
1065 f32 distance_f = object->getBasePosition().getDistanceFrom(pos_f);
1066 if(distance_f > radius_f)
1068 // Discard if already on current_objects
1069 core::map<u16, bool>::Node *n;
1070 n = current_objects.find(id);
1073 // Add to added_objects
1074 added_objects.insert(id, false);
1079 Finds out what objects have been removed from
1080 inside a radius around a position
1082 void ServerEnvironment::getRemovedActiveObjects(v3s16 pos, s16 radius,
1083 core::map<u16, bool> ¤t_objects,
1084 core::map<u16, bool> &removed_objects)
1086 v3f pos_f = intToFloat(pos, BS);
1087 f32 radius_f = radius * BS;
1089 Go through current_objects; object is removed if:
1090 - object is not found in m_active_objects (this is actually an
1091 error condition; objects should be set m_removed=true and removed
1092 only after all clients have been informed about removal), or
1093 - object has m_removed=true, or
1094 - object is too far away
1096 for(core::map<u16, bool>::Iterator
1097 i = current_objects.getIterator();
1098 i.atEnd()==false; i++)
1100 u16 id = i.getNode()->getKey();
1101 ServerActiveObject *object = getActiveObject(id);
1104 dstream<<"WARNING: ServerEnvironment::getRemovedActiveObjects():"
1105 <<" object in current_objects is NULL"<<std::endl;
1107 else if(object->m_removed == false)
1109 f32 distance_f = object->getBasePosition().getDistanceFrom(pos_f);
1110 /*dstream<<"removed == false"
1111 <<"distance_f = "<<distance_f
1112 <<", radius_f = "<<radius_f<<std::endl;*/
1113 if(distance_f < radius_f)
1119 removed_objects.insert(id, false);
1123 ActiveObjectMessage ServerEnvironment::getActiveObjectMessage()
1125 if(m_active_object_messages.size() == 0)
1126 return ActiveObjectMessage(0);
1128 return m_active_object_messages.pop_front();
1132 ************ Private methods *************
1135 u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
1139 if(object->getId() == 0)
1141 u16 new_id = getFreeServerActiveObjectId(m_active_objects);
1144 dstream<<"WARNING: ServerEnvironment::addActiveObjectRaw(): "
1145 <<"no free ids available"<<std::endl;
1149 object->setId(new_id);
1151 if(isFreeServerActiveObjectId(object->getId(), m_active_objects) == false)
1153 dstream<<"WARNING: ServerEnvironment::addActiveObjectRaw(): "
1154 <<"id is not free ("<<object->getId()<<")"<<std::endl;
1158 /*dstream<<"INGO: ServerEnvironment::addActiveObjectRaw(): "
1159 <<"added (id="<<object->getId()<<")"<<std::endl;*/
1161 m_active_objects.insert(object->getId(), object);
1163 // Add static object to active static list of the block
1164 v3f objectpos = object->getBasePosition();
1165 std::string staticdata = object->getStaticData();
1166 StaticObject s_obj(object->getType(), objectpos, staticdata);
1167 // Add to the block where the object is located in
1168 v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
1169 MapBlock *block = m_map->getBlockNoCreateNoEx(blockpos);
1172 block->m_static_objects.m_active.insert(object->getId(), s_obj);
1173 object->m_static_exists = true;
1174 object->m_static_block = blockpos;
1177 block->setChangedFlag();
1180 dstream<<"WARNING: ServerEnv: Could not find a block for "
1181 <<"storing newly added static active object"<<std::endl;
1184 return object->getId();
1188 Remove objects that satisfy (m_removed && m_known_by_count==0)
1190 void ServerEnvironment::removeRemovedObjects()
1192 core::list<u16> objects_to_remove;
1193 for(core::map<u16, ServerActiveObject*>::Iterator
1194 i = m_active_objects.getIterator();
1195 i.atEnd()==false; i++)
1197 u16 id = i.getNode()->getKey();
1198 ServerActiveObject* obj = i.getNode()->getValue();
1199 // This shouldn't happen but check it
1202 dstream<<"WARNING: NULL object found in ServerEnvironment"
1203 <<" while finding removed objects. id="<<id<<std::endl;
1204 // Id to be removed from m_active_objects
1205 objects_to_remove.push_back(id);
1210 We will delete objects that are marked as removed or thatare
1211 waiting for deletion after deactivation
1213 if(obj->m_removed == false && obj->m_pending_deactivation == false)
1217 Delete static data from block if is marked as removed
1219 if(obj->m_static_exists && obj->m_removed)
1221 MapBlock *block = m_map->getBlockNoCreateNoEx(obj->m_static_block);
1224 block->m_static_objects.remove(id);
1225 block->setChangedFlag();
1229 // If m_known_by_count > 0, don't actually remove.
1230 if(obj->m_known_by_count > 0)
1235 // Id to be removed from m_active_objects
1236 objects_to_remove.push_back(id);
1238 // Remove references from m_active_objects
1239 for(core::list<u16>::Iterator i = objects_to_remove.begin();
1240 i != objects_to_remove.end(); i++)
1242 m_active_objects.remove(*i);
1247 Convert stored objects from blocks near the players to active.
1249 void ServerEnvironment::activateObjects(MapBlock *block)
1253 // Ignore if no stored objects (to not set changed flag)
1254 if(block->m_static_objects.m_stored.size() == 0)
1256 // A list for objects that couldn't be converted to static for some
1257 // reason. They will be stored back.
1258 core::list<StaticObject> new_stored;
1259 // Loop through stored static objects
1260 for(core::list<StaticObject>::Iterator
1261 i = block->m_static_objects.m_stored.begin();
1262 i != block->m_static_objects.m_stored.end(); i++)
1264 /*dstream<<"INFO: Server: Creating an active object from "
1265 <<"static data"<<std::endl;*/
1266 StaticObject &s_obj = *i;
1267 // Create an active object from the data
1268 ServerActiveObject *obj = ServerActiveObject::create
1269 (s_obj.type, this, 0, s_obj.pos, s_obj.data);
1270 // If couldn't create object, store static data back.
1273 new_stored.push_back(s_obj);
1276 // This will also add the object to the active static list
1277 addActiveObjectRaw(obj, false);
1278 //u16 id = addActiveObjectRaw(obj, false);
1280 // Clear stored list
1281 block->m_static_objects.m_stored.clear();
1282 // Add leftover failed stuff to stored list
1283 for(core::list<StaticObject>::Iterator
1284 i = new_stored.begin();
1285 i != new_stored.end(); i++)
1287 StaticObject &s_obj = *i;
1288 block->m_static_objects.m_stored.push_back(s_obj);
1290 // Block has been modified
1291 // NOTE: No it has not really. Save I/O here.
1292 //block->setChangedFlag();
1296 Convert objects that are not in active blocks to static.
1298 If m_known_by_count != 0, active object is not deleted, but static
1299 data is still updated.
1301 If force_delete is set, active object is deleted nevertheless. It
1302 shall only be set so in the destructor of the environment.
1304 void ServerEnvironment::deactivateFarObjects(bool force_delete)
1306 core::list<u16> objects_to_remove;
1307 for(core::map<u16, ServerActiveObject*>::Iterator
1308 i = m_active_objects.getIterator();
1309 i.atEnd()==false; i++)
1311 ServerActiveObject* obj = i.getNode()->getValue();
1312 u16 id = i.getNode()->getKey();
1313 v3f objectpos = obj->getBasePosition();
1315 // This shouldn't happen but check it
1318 dstream<<"WARNING: NULL object found in ServerEnvironment"
1324 // The block in which the object resides in
1325 v3s16 blockpos_o = getNodeBlockPos(floatToInt(objectpos, BS));
1327 // If block is active, don't remove
1328 if(m_active_blocks.contains(blockpos_o))
1332 Update the static data
1335 // Delete old static object
1336 MapBlock *oldblock = NULL;
1337 if(obj->m_static_exists)
1339 MapBlock *block = m_map->getBlockNoCreateNoEx
1340 (obj->m_static_block);
1343 block->m_static_objects.remove(id);
1347 // Create new static object
1348 std::string staticdata = obj->getStaticData();
1349 StaticObject s_obj(obj->getType(), objectpos, staticdata);
1350 // Add to the block where the object is located in
1351 v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
1352 // Get or generate the block
1353 MapBlock *block = m_map->emergeBlock(blockpos);
1355 /*MapBlock *block = m_map->getBlockNoCreateNoEx(blockpos);
1358 // Block not found. Is the old block still ok?
1361 // Load from disk or generate
1363 block = m_map->emergeBlock(blockpos);
1368 block->m_static_objects.insert(0, s_obj);
1369 block->setChangedFlag();
1370 obj->m_static_exists = true;
1371 obj->m_static_block = block->getPos();
1374 dstream<<"WARNING: ServerEnv: Could not find or generate "
1375 <<"a block for storing static object"<<std::endl;
1376 obj->m_static_exists = false;
1381 Delete active object if not known by some client,
1382 else set pending deactivation
1385 // If known by some client, don't delete.
1386 if(obj->m_known_by_count > 0 && force_delete == false)
1388 obj->m_pending_deactivation = true;
1392 /*dstream<<"INFO: Server: Stored static data. Deleting object."
1394 // Delete active object
1396 // Id to be removed from m_active_objects
1397 objects_to_remove.push_back(id);
1400 // Remove references from m_active_objects
1401 for(core::list<u16>::Iterator i = objects_to_remove.begin();
1402 i != objects_to_remove.end(); i++)
1404 m_active_objects.remove(*i);
1415 ClientEnvironment::ClientEnvironment(ClientMap *map, scene::ISceneManager *smgr):
1423 ClientEnvironment::~ClientEnvironment()
1425 // delete active objects
1426 for(core::map<u16, ClientActiveObject*>::Iterator
1427 i = m_active_objects.getIterator();
1428 i.atEnd()==false; i++)
1430 delete i.getNode()->getValue();
1437 void ClientEnvironment::addPlayer(Player *player)
1439 DSTACK(__FUNCTION_NAME);
1441 It is a failure if player is local and there already is a local
1444 assert(!(player->isLocal() == true && getLocalPlayer() != NULL));
1446 Environment::addPlayer(player);
1449 LocalPlayer * ClientEnvironment::getLocalPlayer()
1451 for(core::list<Player*>::Iterator i = m_players.begin();
1452 i != m_players.end(); i++)
1454 Player *player = *i;
1455 if(player->isLocal())
1456 return (LocalPlayer*)player;
1461 void ClientEnvironment::step(float dtime)
1463 DSTACK(__FUNCTION_NAME);
1465 // Get some settings
1466 bool free_move = g_settings.getBool("free_move");
1467 bool footprints = g_settings.getBool("footprints");
1470 LocalPlayer *lplayer = getLocalPlayer();
1472 // collision info queue
1473 core::list<CollisionInfo> player_collisions;
1476 Get the speed the player is going
1478 f32 player_speed = 0.001; // just some small value
1479 player_speed = lplayer->getSpeed().getLength();
1482 Maximum position increment
1484 //f32 position_max_increment = 0.05*BS;
1485 f32 position_max_increment = 0.1*BS;
1487 // Maximum time increment (for collision detection etc)
1488 // time = distance / speed
1489 f32 dtime_max_increment = position_max_increment / player_speed;
1491 // Maximum time increment is 10ms or lower
1492 if(dtime_max_increment > 0.01)
1493 dtime_max_increment = 0.01;
1495 // Don't allow overly huge dtime
1499 f32 dtime_downcount = dtime;
1502 Stuff that has a maximum time increment
1511 if(dtime_downcount > dtime_max_increment)
1513 dtime_part = dtime_max_increment;
1514 dtime_downcount -= dtime_part;
1518 dtime_part = dtime_downcount;
1520 Setting this to 0 (no -=dtime_part) disables an infinite loop
1521 when dtime_part is so small that dtime_downcount -= dtime_part
1524 dtime_downcount = 0;
1532 v3f lplayerpos = lplayer->getPosition();
1535 if(free_move == false)
1538 v3f speed = lplayer->getSpeed();
1539 if(lplayer->swimming_up == false)
1540 speed.Y -= 9.81 * BS * dtime_part * 2;
1543 if(lplayer->in_water_stable || lplayer->in_water)
1545 f32 max_down = 2.0*BS;
1546 if(speed.Y < -max_down) speed.Y = -max_down;
1549 if(speed.getLength() > max)
1551 speed = speed / speed.getLength() * max;
1555 lplayer->setSpeed(speed);
1560 This also does collision detection.
1562 lplayer->move(dtime_part, *m_map, position_max_increment,
1563 &player_collisions);
1566 while(dtime_downcount > 0.001);
1568 //std::cout<<"Looped "<<loopcount<<" times."<<std::endl;
1570 for(core::list<CollisionInfo>::Iterator
1571 i = player_collisions.begin();
1572 i != player_collisions.end(); i++)
1574 CollisionInfo &info = *i;
1575 if(info.t == COLLISION_FALL)
1577 //f32 tolerance = BS*10; // 2 without damage
1578 f32 tolerance = BS*12; // 3 without damage
1580 if(info.speed > tolerance)
1582 f32 damage_f = (info.speed - tolerance)/BS*factor;
1583 u16 damage = (u16)(damage_f+0.5);
1584 if(lplayer->hp > damage)
1585 lplayer->hp -= damage;
1589 ClientEnvEvent event;
1590 event.type = CEE_PLAYER_DAMAGE;
1591 event.player_damage.amount = damage;
1592 m_client_event_queue.push_back(event);
1598 Stuff that can be done in an arbitarily large dtime
1600 for(core::list<Player*>::Iterator i = m_players.begin();
1601 i != m_players.end(); i++)
1603 Player *player = *i;
1604 v3f playerpos = player->getPosition();
1607 Handle non-local players
1609 if(player->isLocal() == false)
1612 player->move(dtime, *m_map, 100*BS);
1614 // Update lighting on remote players on client
1615 u8 light = LIGHT_MAX;
1618 v3s16 p = floatToInt(playerpos + v3f(0,BS+BS/2,0), BS);
1619 MapNode n = m_map->getNode(p);
1620 light = n.getLightBlend(getDayNightRatio());
1622 catch(InvalidPositionException &e) {}
1623 player->updateLight(light);
1627 Add footsteps to grass
1631 // Get node that is at BS/4 under player
1632 v3s16 bottompos = floatToInt(playerpos + v3f(0,-BS/4,0), BS);
1634 MapNode n = m_map->getNode(bottompos);
1635 if(n.d == CONTENT_GRASS)
1637 n.d = CONTENT_GRASS_FOOTSTEPS;
1638 m_map->setNode(bottompos, n);
1639 // Update mesh on client
1640 if(m_map->mapType() == MAPTYPE_CLIENT)
1642 v3s16 p_blocks = getNodeBlockPos(bottompos);
1643 MapBlock *b = m_map->getBlockNoCreate(p_blocks);
1644 //b->updateMesh(getDayNightRatio());
1645 b->setMeshExpired(true);
1649 catch(InvalidPositionException &e)
1656 Step active objects and update lighting of them
1659 for(core::map<u16, ClientActiveObject*>::Iterator
1660 i = m_active_objects.getIterator();
1661 i.atEnd()==false; i++)
1663 ClientActiveObject* obj = i.getNode()->getValue();
1665 obj->step(dtime, this);
1667 if(m_active_object_light_update_interval.step(dtime, 0.21))
1670 //u8 light = LIGHT_MAX;
1674 v3s16 p = obj->getLightPosition();
1675 MapNode n = m_map->getNode(p);
1676 light = n.getLightBlend(getDayNightRatio());
1678 catch(InvalidPositionException &e) {}
1679 obj->updateLight(light);
1684 void ClientEnvironment::updateMeshes(v3s16 blockpos)
1686 m_map->updateMeshes(blockpos, getDayNightRatio());
1689 void ClientEnvironment::expireMeshes(bool only_daynight_diffed)
1691 m_map->expireMeshes(only_daynight_diffed);
1694 ClientActiveObject* ClientEnvironment::getActiveObject(u16 id)
1696 core::map<u16, ClientActiveObject*>::Node *n;
1697 n = m_active_objects.find(id);
1700 return n->getValue();
1703 bool isFreeClientActiveObjectId(u16 id,
1704 core::map<u16, ClientActiveObject*> &objects)
1709 for(core::map<u16, ClientActiveObject*>::Iterator
1710 i = objects.getIterator();
1711 i.atEnd()==false; i++)
1713 if(i.getNode()->getKey() == id)
1719 u16 getFreeClientActiveObjectId(
1720 core::map<u16, ClientActiveObject*> &objects)
1725 if(isFreeClientActiveObjectId(new_id, objects))
1735 u16 ClientEnvironment::addActiveObject(ClientActiveObject *object)
1738 if(object->getId() == 0)
1740 u16 new_id = getFreeClientActiveObjectId(m_active_objects);
1743 dstream<<"WARNING: ClientEnvironment::addActiveObject(): "
1744 <<"no free ids available"<<std::endl;
1748 object->setId(new_id);
1750 if(isFreeClientActiveObjectId(object->getId(), m_active_objects) == false)
1752 dstream<<"WARNING: ClientEnvironment::addActiveObject(): "
1753 <<"id is not free ("<<object->getId()<<")"<<std::endl;
1757 dstream<<"INGO: ClientEnvironment::addActiveObject(): "
1758 <<"added (id="<<object->getId()<<")"<<std::endl;
1759 m_active_objects.insert(object->getId(), object);
1760 object->addToScene(m_smgr);
1761 return object->getId();
1764 void ClientEnvironment::addActiveObject(u16 id, u8 type,
1765 const std::string &init_data)
1767 ClientActiveObject* obj = ClientActiveObject::create(type);
1770 dstream<<"WARNING: ClientEnvironment::addActiveObject(): "
1771 <<"id="<<id<<" type="<<type<<": Couldn't create object"
1778 addActiveObject(obj);
1780 obj->initialize(init_data);
1783 void ClientEnvironment::removeActiveObject(u16 id)
1785 dstream<<"ClientEnvironment::removeActiveObject(): "
1786 <<"id="<<id<<std::endl;
1787 ClientActiveObject* obj = getActiveObject(id);
1790 dstream<<"WARNING: ClientEnvironment::removeActiveObject(): "
1791 <<"id="<<id<<" not found"<<std::endl;
1794 obj->removeFromScene();
1796 m_active_objects.remove(id);
1799 void ClientEnvironment::processActiveObjectMessage(u16 id,
1800 const std::string &data)
1802 ClientActiveObject* obj = getActiveObject(id);
1805 dstream<<"WARNING: ClientEnvironment::processActiveObjectMessage():"
1806 <<" got message for id="<<id<<", which doesn't exist."
1810 obj->processMessage(data);
1814 Callbacks for activeobjects
1817 void ClientEnvironment::damageLocalPlayer(u8 damage)
1819 LocalPlayer *lplayer = getLocalPlayer();
1822 if(lplayer->hp > damage)
1823 lplayer->hp -= damage;
1827 ClientEnvEvent event;
1828 event.type = CEE_PLAYER_DAMAGE;
1829 event.player_damage.amount = damage;
1830 m_client_event_queue.push_back(event);
1834 Client likes to call these
1837 void ClientEnvironment::getActiveObjects(v3f origin, f32 max_d,
1838 core::array<DistanceSortedActiveObject> &dest)
1840 for(core::map<u16, ClientActiveObject*>::Iterator
1841 i = m_active_objects.getIterator();
1842 i.atEnd()==false; i++)
1844 ClientActiveObject* obj = i.getNode()->getValue();
1846 f32 d = (obj->getPosition() - origin).getLength();
1851 DistanceSortedActiveObject dso(obj, d);
1853 dest.push_back(dso);
1857 ClientEnvEvent ClientEnvironment::getClientEvent()
1859 if(m_client_event_queue.size() == 0)
1861 ClientEnvEvent event;
1862 event.type = CEE_NONE;
1865 return m_client_event_queue.pop_front();
1868 #endif // #ifndef SERVER