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;
664 Let map update it's timers
667 //TimeTaker timer("Server m_map->timerUpdate()");
668 m_map->timerUpdate(dtime);
674 for(core::list<Player*>::Iterator i = m_players.begin();
675 i != m_players.end(); i++)
679 // Ignore disconnected players
680 if(player->peer_id == 0)
683 v3f playerpos = player->getPosition();
686 player->move(dtime, *m_map, 100*BS);
689 Add footsteps to grass
693 // Get node that is at BS/4 under player
694 v3s16 bottompos = floatToInt(playerpos + v3f(0,-BS/4,0), BS);
696 MapNode n = m_map->getNode(bottompos);
697 if(n.d == CONTENT_GRASS)
699 n.d = CONTENT_GRASS_FOOTSTEPS;
700 m_map->setNode(bottompos, n);
703 catch(InvalidPositionException &e)
710 Manage active block list
712 if(m_active_blocks_management_interval.step(dtime, 2.0))
715 Get player block positions
717 core::list<v3s16> players_blockpos;
718 for(core::list<Player*>::Iterator
719 i = m_players.begin();
720 i != m_players.end(); i++)
723 // Ignore disconnected players
724 if(player->peer_id == 0)
726 v3s16 blockpos = getNodeBlockPos(
727 floatToInt(player->getPosition(), BS));
728 players_blockpos.push_back(blockpos);
732 Update list of active blocks, collecting changes
734 const s16 active_block_range = 5;
735 core::map<v3s16, bool> blocks_removed;
736 core::map<v3s16, bool> blocks_added;
737 m_active_blocks.update(players_blockpos, active_block_range,
738 blocks_removed, blocks_added);
741 Handle removed blocks
744 // Convert active objects that are no more in active blocks to static
745 deactivateFarObjects(false);
747 for(core::map<v3s16, bool>::Iterator
748 i = blocks_removed.getIterator();
749 i.atEnd()==false; i++)
751 v3s16 p = i.getNode()->getKey();
753 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
754 <<") became inactive"<<std::endl;*/
756 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
760 // Set current time as timestamp (and let it set ChangedFlag)
761 block->setTimestamp(m_game_time);
768 for(core::map<v3s16, bool>::Iterator
769 i = blocks_added.getIterator();
770 i.atEnd()==false; i++)
772 v3s16 p = i.getNode()->getKey();
774 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
775 <<") became active"<<std::endl;*/
777 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
781 activateBlock(block);
786 Mess around in active blocks
788 if(m_active_blocks_nodemetadata_interval.step(dtime, 1.0))
792 for(core::map<v3s16, bool>::Iterator
793 i = m_active_blocks.m_list.getIterator();
794 i.atEnd()==false; i++)
796 v3s16 p = i.getNode()->getKey();
798 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
799 <<") being handled"<<std::endl;*/
801 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
805 // Set current time as timestamp
806 block->setTimestampNoChangedFlag(m_game_time);
809 bool changed = block->m_node_metadata.step(dtime);
813 event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
815 m_map->dispatchEvent(&event);
817 block->setChangedFlag();
821 if(m_active_blocks_test_interval.step(dtime, 10.0))
823 //float dtime = 10.0;
825 for(core::map<v3s16, bool>::Iterator
826 i = m_active_blocks.m_list.getIterator();
827 i.atEnd()==false; i++)
829 v3s16 p = i.getNode()->getKey();
831 /*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
832 <<") being handled"<<std::endl;*/
834 MapBlock *block = m_map->getBlockNoCreateNoEx(p);
838 // Set current time as timestamp
839 block->setTimestampNoChangedFlag(m_game_time);
844 Note that map modifications should be done using the event-
845 making map methods so that the server gets information
848 Reading can be done quickly directly from the block.
850 Everything should bind to inside this single content
851 searching loop to keep things fast.
853 // TODO: Implement usage of ActiveBlockModifier
856 for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
857 for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
858 for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
860 v3s16 p = p0 + block->getPosRelative();
861 MapNode n = block->getNodeNoEx(p0);
865 Convert mud under proper lighting to grass
867 if(n.d == CONTENT_MUD)
871 MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
872 if(content_features(n_top.d).air_equivalent &&
873 n_top.getLightBlend(getDayNightRatio()) >= 13)
876 m_map->addNodeWithEvent(p, n);
881 Convert grass into mud if under something else than air
883 else if(n.d == CONTENT_GRASS)
885 //if(myrand()%20 == 0)
887 MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
888 if(n_top.d != CONTENT_AIR
889 && n_top.d != CONTENT_IGNORE)
892 m_map->addNodeWithEvent(p, n);
904 //TimeTaker timer("Step active objects");
906 // This helps the objects to send data at the same time
907 bool send_recommended = false;
908 m_send_recommended_timer += dtime;
909 if(m_send_recommended_timer > 0.15)
911 m_send_recommended_timer = 0;
912 send_recommended = true;
915 for(core::map<u16, ServerActiveObject*>::Iterator
916 i = m_active_objects.getIterator();
917 i.atEnd()==false; i++)
919 ServerActiveObject* obj = i.getNode()->getValue();
920 // Don't step if is to be removed or stored statically
921 if(obj->m_removed || obj->m_pending_deactivation)
924 obj->step(dtime, send_recommended);
925 // Read messages from object
926 while(obj->m_messages_out.size() > 0)
928 m_active_object_messages.push_back(
929 obj->m_messages_out.pop_front());
935 Manage active objects
937 if(m_object_management_interval.step(dtime, 0.5))
940 Remove objects that satisfy (m_removed && m_known_by_count==0)
942 removeRemovedObjects();
945 if(g_settings.getBool("enable_experimental"))
952 m_random_spawn_timer -= dtime;
953 if(m_random_spawn_timer < 0)
955 //m_random_spawn_timer += myrand_range(2.0, 20.0);
956 //m_random_spawn_timer += 2.0;
957 m_random_spawn_timer += 200.0;
963 /*v2s16 p2d(myrand_range(-5,5), myrand_range(-5,5));
964 s16 y = 1 + getServerMap().findGroundLevel(p2d);
965 v3f pos(p2d.X*BS,y*BS,p2d.Y*BS);*/
967 Player *player = getRandomConnectedPlayer();
970 pos = player->getPosition();
972 myrand_range(-3,3)*BS,
974 myrand_range(-3,3)*BS
978 Create a ServerActiveObject
981 //TestSAO *obj = new TestSAO(this, 0, pos);
982 //ServerActiveObject *obj = new ItemSAO(this, 0, pos, "CraftItem Stick 1");
983 //ServerActiveObject *obj = new RatSAO(this, 0, pos);
984 ServerActiveObject *obj = new Oerkki1SAO(this, 0, pos);
985 addActiveObject(obj);
989 } // enable_experimental
992 ServerActiveObject* ServerEnvironment::getActiveObject(u16 id)
994 core::map<u16, ServerActiveObject*>::Node *n;
995 n = m_active_objects.find(id);
998 return n->getValue();
1001 bool isFreeServerActiveObjectId(u16 id,
1002 core::map<u16, ServerActiveObject*> &objects)
1007 for(core::map<u16, ServerActiveObject*>::Iterator
1008 i = objects.getIterator();
1009 i.atEnd()==false; i++)
1011 if(i.getNode()->getKey() == id)
1017 u16 getFreeServerActiveObjectId(
1018 core::map<u16, ServerActiveObject*> &objects)
1023 if(isFreeServerActiveObjectId(new_id, objects))
1033 u16 ServerEnvironment::addActiveObject(ServerActiveObject *object)
1036 u16 id = addActiveObjectRaw(object, true);
1041 Finds out what new objects have been added to
1042 inside a radius around a position
1044 void ServerEnvironment::getAddedActiveObjects(v3s16 pos, s16 radius,
1045 core::map<u16, bool> ¤t_objects,
1046 core::map<u16, bool> &added_objects)
1048 v3f pos_f = intToFloat(pos, BS);
1049 f32 radius_f = radius * BS;
1051 Go through the object list,
1052 - discard m_removed objects,
1053 - discard objects that are too far away,
1054 - discard objects that are found in current_objects.
1055 - add remaining objects to added_objects
1057 for(core::map<u16, ServerActiveObject*>::Iterator
1058 i = m_active_objects.getIterator();
1059 i.atEnd()==false; i++)
1061 u16 id = i.getNode()->getKey();
1063 ServerActiveObject *object = i.getNode()->getValue();
1066 // Discard if removed
1067 if(object->m_removed)
1069 // Discard if too far
1070 f32 distance_f = object->getBasePosition().getDistanceFrom(pos_f);
1071 if(distance_f > radius_f)
1073 // Discard if already on current_objects
1074 core::map<u16, bool>::Node *n;
1075 n = current_objects.find(id);
1078 // Add to added_objects
1079 added_objects.insert(id, false);
1084 Finds out what objects have been removed from
1085 inside a radius around a position
1087 void ServerEnvironment::getRemovedActiveObjects(v3s16 pos, s16 radius,
1088 core::map<u16, bool> ¤t_objects,
1089 core::map<u16, bool> &removed_objects)
1091 v3f pos_f = intToFloat(pos, BS);
1092 f32 radius_f = radius * BS;
1094 Go through current_objects; object is removed if:
1095 - object is not found in m_active_objects (this is actually an
1096 error condition; objects should be set m_removed=true and removed
1097 only after all clients have been informed about removal), or
1098 - object has m_removed=true, or
1099 - object is too far away
1101 for(core::map<u16, bool>::Iterator
1102 i = current_objects.getIterator();
1103 i.atEnd()==false; i++)
1105 u16 id = i.getNode()->getKey();
1106 ServerActiveObject *object = getActiveObject(id);
1109 dstream<<"WARNING: ServerEnvironment::getRemovedActiveObjects():"
1110 <<" object in current_objects is NULL"<<std::endl;
1112 else if(object->m_removed == false)
1114 f32 distance_f = object->getBasePosition().getDistanceFrom(pos_f);
1115 /*dstream<<"removed == false"
1116 <<"distance_f = "<<distance_f
1117 <<", radius_f = "<<radius_f<<std::endl;*/
1118 if(distance_f < radius_f)
1124 removed_objects.insert(id, false);
1128 ActiveObjectMessage ServerEnvironment::getActiveObjectMessage()
1130 if(m_active_object_messages.size() == 0)
1131 return ActiveObjectMessage(0);
1133 return m_active_object_messages.pop_front();
1137 ************ Private methods *************
1140 u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
1144 if(object->getId() == 0)
1146 u16 new_id = getFreeServerActiveObjectId(m_active_objects);
1149 dstream<<"WARNING: ServerEnvironment::addActiveObjectRaw(): "
1150 <<"no free ids available"<<std::endl;
1154 object->setId(new_id);
1156 if(isFreeServerActiveObjectId(object->getId(), m_active_objects) == false)
1158 dstream<<"WARNING: ServerEnvironment::addActiveObjectRaw(): "
1159 <<"id is not free ("<<object->getId()<<")"<<std::endl;
1163 /*dstream<<"INGO: ServerEnvironment::addActiveObjectRaw(): "
1164 <<"added (id="<<object->getId()<<")"<<std::endl;*/
1166 m_active_objects.insert(object->getId(), object);
1168 // Add static object to active static list of the block
1169 v3f objectpos = object->getBasePosition();
1170 std::string staticdata = object->getStaticData();
1171 StaticObject s_obj(object->getType(), objectpos, staticdata);
1172 // Add to the block where the object is located in
1173 v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
1174 MapBlock *block = m_map->getBlockNoCreateNoEx(blockpos);
1177 block->m_static_objects.m_active.insert(object->getId(), s_obj);
1178 object->m_static_exists = true;
1179 object->m_static_block = blockpos;
1182 block->setChangedFlag();
1185 dstream<<"WARNING: Server: Could not find a block for "
1186 <<"storing newly added static active object"<<std::endl;
1189 return object->getId();
1193 Remove objects that satisfy (m_removed && m_known_by_count==0)
1195 void ServerEnvironment::removeRemovedObjects()
1197 core::list<u16> objects_to_remove;
1198 for(core::map<u16, ServerActiveObject*>::Iterator
1199 i = m_active_objects.getIterator();
1200 i.atEnd()==false; i++)
1202 u16 id = i.getNode()->getKey();
1203 ServerActiveObject* obj = i.getNode()->getValue();
1204 // This shouldn't happen but check it
1207 dstream<<"WARNING: NULL object found in ServerEnvironment"
1208 <<" while finding removed objects. id="<<id<<std::endl;
1209 // Id to be removed from m_active_objects
1210 objects_to_remove.push_back(id);
1215 We will delete objects that are marked as removed or thatare
1216 waiting for deletion after deactivation
1218 if(obj->m_removed == false && obj->m_pending_deactivation == false)
1222 Delete static data from block if is marked as removed
1224 if(obj->m_static_exists && obj->m_removed)
1226 MapBlock *block = m_map->getBlockNoCreateNoEx(obj->m_static_block);
1229 block->m_static_objects.remove(id);
1230 block->setChangedFlag();
1234 // If m_known_by_count > 0, don't actually remove.
1235 if(obj->m_known_by_count > 0)
1240 // Id to be removed from m_active_objects
1241 objects_to_remove.push_back(id);
1243 // Remove references from m_active_objects
1244 for(core::list<u16>::Iterator i = objects_to_remove.begin();
1245 i != objects_to_remove.end(); i++)
1247 m_active_objects.remove(*i);
1252 Convert stored objects from blocks near the players to active.
1254 void ServerEnvironment::activateObjects(MapBlock *block)
1258 // Ignore if no stored objects (to not set changed flag)
1259 if(block->m_static_objects.m_stored.size() == 0)
1261 // A list for objects that couldn't be converted to static for some
1262 // reason. They will be stored back.
1263 core::list<StaticObject> new_stored;
1264 // Loop through stored static objects
1265 for(core::list<StaticObject>::Iterator
1266 i = block->m_static_objects.m_stored.begin();
1267 i != block->m_static_objects.m_stored.end(); i++)
1269 /*dstream<<"INFO: Server: Creating an active object from "
1270 <<"static data"<<std::endl;*/
1271 StaticObject &s_obj = *i;
1272 // Create an active object from the data
1273 ServerActiveObject *obj = ServerActiveObject::create
1274 (s_obj.type, this, 0, s_obj.pos, s_obj.data);
1275 // If couldn't create object, store static data back.
1278 new_stored.push_back(s_obj);
1281 // This will also add the object to the active static list
1282 addActiveObjectRaw(obj, false);
1283 //u16 id = addActiveObjectRaw(obj, false);
1285 // Clear stored list
1286 block->m_static_objects.m_stored.clear();
1287 // Add leftover failed stuff to stored list
1288 for(core::list<StaticObject>::Iterator
1289 i = new_stored.begin();
1290 i != new_stored.end(); i++)
1292 StaticObject &s_obj = *i;
1293 block->m_static_objects.m_stored.push_back(s_obj);
1295 // Block has been modified
1296 // NOTE: No it has not really. Save I/O here.
1297 //block->setChangedFlag();
1301 Convert objects that are not in active blocks to static.
1303 If m_known_by_count != 0, active object is not deleted, but static
1304 data is still updated.
1306 If force_delete is set, active object is deleted nevertheless. It
1307 shall only be set so in the destructor of the environment.
1309 void ServerEnvironment::deactivateFarObjects(bool force_delete)
1311 core::list<u16> objects_to_remove;
1312 for(core::map<u16, ServerActiveObject*>::Iterator
1313 i = m_active_objects.getIterator();
1314 i.atEnd()==false; i++)
1316 ServerActiveObject* obj = i.getNode()->getValue();
1317 u16 id = i.getNode()->getKey();
1318 v3f objectpos = obj->getBasePosition();
1320 // This shouldn't happen but check it
1323 dstream<<"WARNING: NULL object found in ServerEnvironment"
1329 // The block in which the object resides in
1330 v3s16 blockpos_o = getNodeBlockPos(floatToInt(objectpos, BS));
1332 // If block is active, don't remove
1333 if(m_active_blocks.contains(blockpos_o))
1337 Update the static data
1340 // Delete old static object
1341 MapBlock *oldblock = NULL;
1342 if(obj->m_static_exists)
1344 MapBlock *block = m_map->getBlockNoCreateNoEx
1345 (obj->m_static_block);
1348 block->m_static_objects.remove(id);
1352 // Create new static object
1353 std::string staticdata = obj->getStaticData();
1354 StaticObject s_obj(obj->getType(), objectpos, staticdata);
1355 // Add to the block where the object is located in
1356 v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
1357 MapBlock *block = m_map->getBlockNoCreateNoEx(blockpos);
1360 block->m_static_objects.insert(0, s_obj);
1361 block->setChangedFlag();
1362 obj->m_static_exists = true;
1363 obj->m_static_block = block->getPos();
1365 // If not possible, add back to previous block
1368 oldblock->m_static_objects.insert(0, s_obj);
1369 oldblock->setChangedFlag();
1370 obj->m_static_exists = true;
1371 obj->m_static_block = oldblock->getPos();
1374 dstream<<"WARNING: Server: Could not find a block for "
1375 <<"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 //TimeTaker timer("Client m_map->timerUpdate()");
1471 m_map->timerUpdate(dtime);
1475 LocalPlayer *lplayer = getLocalPlayer();
1477 // collision info queue
1478 core::list<CollisionInfo> player_collisions;
1481 Get the speed the player is going
1483 f32 player_speed = 0.001; // just some small value
1484 player_speed = lplayer->getSpeed().getLength();
1487 Maximum position increment
1489 //f32 position_max_increment = 0.05*BS;
1490 f32 position_max_increment = 0.1*BS;
1492 // Maximum time increment (for collision detection etc)
1493 // time = distance / speed
1494 f32 dtime_max_increment = position_max_increment / player_speed;
1496 // Maximum time increment is 10ms or lower
1497 if(dtime_max_increment > 0.01)
1498 dtime_max_increment = 0.01;
1500 // Don't allow overly huge dtime
1504 f32 dtime_downcount = dtime;
1507 Stuff that has a maximum time increment
1516 if(dtime_downcount > dtime_max_increment)
1518 dtime_part = dtime_max_increment;
1519 dtime_downcount -= dtime_part;
1523 dtime_part = dtime_downcount;
1525 Setting this to 0 (no -=dtime_part) disables an infinite loop
1526 when dtime_part is so small that dtime_downcount -= dtime_part
1529 dtime_downcount = 0;
1537 v3f lplayerpos = lplayer->getPosition();
1540 if(free_move == false)
1543 v3f speed = lplayer->getSpeed();
1544 if(lplayer->swimming_up == false)
1545 speed.Y -= 9.81 * BS * dtime_part * 2;
1548 if(lplayer->in_water_stable || lplayer->in_water)
1550 f32 max_down = 2.0*BS;
1551 if(speed.Y < -max_down) speed.Y = -max_down;
1554 if(speed.getLength() > max)
1556 speed = speed / speed.getLength() * max;
1560 lplayer->setSpeed(speed);
1565 This also does collision detection.
1567 lplayer->move(dtime_part, *m_map, position_max_increment,
1568 &player_collisions);
1571 while(dtime_downcount > 0.001);
1573 //std::cout<<"Looped "<<loopcount<<" times."<<std::endl;
1575 for(core::list<CollisionInfo>::Iterator
1576 i = player_collisions.begin();
1577 i != player_collisions.end(); i++)
1579 CollisionInfo &info = *i;
1580 if(info.t == COLLISION_FALL)
1582 //f32 tolerance = BS*10; // 2 without damage
1583 f32 tolerance = BS*12; // 3 without damage
1585 if(info.speed > tolerance)
1587 f32 damage_f = (info.speed - tolerance)/BS*factor;
1588 u16 damage = (u16)(damage_f+0.5);
1589 if(lplayer->hp > damage)
1590 lplayer->hp -= damage;
1594 ClientEnvEvent event;
1595 event.type = CEE_PLAYER_DAMAGE;
1596 event.player_damage.amount = damage;
1597 m_client_event_queue.push_back(event);
1603 Stuff that can be done in an arbitarily large dtime
1605 for(core::list<Player*>::Iterator i = m_players.begin();
1606 i != m_players.end(); i++)
1608 Player *player = *i;
1609 v3f playerpos = player->getPosition();
1612 Handle non-local players
1614 if(player->isLocal() == false)
1617 player->move(dtime, *m_map, 100*BS);
1619 // Update lighting on remote players on client
1620 u8 light = LIGHT_MAX;
1623 v3s16 p = floatToInt(playerpos + v3f(0,BS+BS/2,0), BS);
1624 MapNode n = m_map->getNode(p);
1625 light = n.getLightBlend(getDayNightRatio());
1627 catch(InvalidPositionException &e) {}
1628 player->updateLight(light);
1632 Add footsteps to grass
1636 // Get node that is at BS/4 under player
1637 v3s16 bottompos = floatToInt(playerpos + v3f(0,-BS/4,0), BS);
1639 MapNode n = m_map->getNode(bottompos);
1640 if(n.d == CONTENT_GRASS)
1642 n.d = CONTENT_GRASS_FOOTSTEPS;
1643 m_map->setNode(bottompos, n);
1644 // Update mesh on client
1645 if(m_map->mapType() == MAPTYPE_CLIENT)
1647 v3s16 p_blocks = getNodeBlockPos(bottompos);
1648 MapBlock *b = m_map->getBlockNoCreate(p_blocks);
1649 //b->updateMesh(getDayNightRatio());
1650 b->setMeshExpired(true);
1654 catch(InvalidPositionException &e)
1661 Step active objects and update lighting of them
1664 for(core::map<u16, ClientActiveObject*>::Iterator
1665 i = m_active_objects.getIterator();
1666 i.atEnd()==false; i++)
1668 ClientActiveObject* obj = i.getNode()->getValue();
1670 obj->step(dtime, this);
1672 if(m_active_object_light_update_interval.step(dtime, 0.5))
1675 //u8 light = LIGHT_MAX;
1679 v3s16 p = obj->getLightPosition();
1680 MapNode n = m_map->getNode(p);
1681 light = n.getLightBlend(getDayNightRatio());
1683 catch(InvalidPositionException &e) {}
1684 obj->updateLight(light);
1689 void ClientEnvironment::updateMeshes(v3s16 blockpos)
1691 m_map->updateMeshes(blockpos, getDayNightRatio());
1694 void ClientEnvironment::expireMeshes(bool only_daynight_diffed)
1696 m_map->expireMeshes(only_daynight_diffed);
1699 ClientActiveObject* ClientEnvironment::getActiveObject(u16 id)
1701 core::map<u16, ClientActiveObject*>::Node *n;
1702 n = m_active_objects.find(id);
1705 return n->getValue();
1708 bool isFreeClientActiveObjectId(u16 id,
1709 core::map<u16, ClientActiveObject*> &objects)
1714 for(core::map<u16, ClientActiveObject*>::Iterator
1715 i = objects.getIterator();
1716 i.atEnd()==false; i++)
1718 if(i.getNode()->getKey() == id)
1724 u16 getFreeClientActiveObjectId(
1725 core::map<u16, ClientActiveObject*> &objects)
1730 if(isFreeClientActiveObjectId(new_id, objects))
1740 u16 ClientEnvironment::addActiveObject(ClientActiveObject *object)
1743 if(object->getId() == 0)
1745 u16 new_id = getFreeClientActiveObjectId(m_active_objects);
1748 dstream<<"WARNING: ClientEnvironment::addActiveObject(): "
1749 <<"no free ids available"<<std::endl;
1753 object->setId(new_id);
1755 if(isFreeClientActiveObjectId(object->getId(), m_active_objects) == false)
1757 dstream<<"WARNING: ClientEnvironment::addActiveObject(): "
1758 <<"id is not free ("<<object->getId()<<")"<<std::endl;
1762 dstream<<"INGO: ClientEnvironment::addActiveObject(): "
1763 <<"added (id="<<object->getId()<<")"<<std::endl;
1764 m_active_objects.insert(object->getId(), object);
1765 object->addToScene(m_smgr);
1766 return object->getId();
1769 void ClientEnvironment::addActiveObject(u16 id, u8 type,
1770 const std::string &init_data)
1772 ClientActiveObject* obj = ClientActiveObject::create(type);
1775 dstream<<"WARNING: ClientEnvironment::addActiveObject(): "
1776 <<"id="<<id<<" type="<<type<<": Couldn't create object"
1783 addActiveObject(obj);
1785 obj->initialize(init_data);
1788 void ClientEnvironment::removeActiveObject(u16 id)
1790 dstream<<"ClientEnvironment::removeActiveObject(): "
1791 <<"id="<<id<<std::endl;
1792 ClientActiveObject* obj = getActiveObject(id);
1795 dstream<<"WARNING: ClientEnvironment::removeActiveObject(): "
1796 <<"id="<<id<<" not found"<<std::endl;
1799 obj->removeFromScene();
1801 m_active_objects.remove(id);
1804 void ClientEnvironment::processActiveObjectMessage(u16 id,
1805 const std::string &data)
1807 ClientActiveObject* obj = getActiveObject(id);
1810 dstream<<"WARNING: ClientEnvironment::processActiveObjectMessage():"
1811 <<" got message for id="<<id<<", which doesn't exist."
1815 obj->processMessage(data);
1819 Callbacks for activeobjects
1822 void ClientEnvironment::damageLocalPlayer(u8 damage)
1824 LocalPlayer *lplayer = getLocalPlayer();
1827 if(lplayer->hp > damage)
1828 lplayer->hp -= damage;
1832 ClientEnvEvent event;
1833 event.type = CEE_PLAYER_DAMAGE;
1834 event.player_damage.amount = damage;
1835 m_client_event_queue.push_back(event);
1839 Client likes to call these
1842 void ClientEnvironment::getActiveObjects(v3f origin, f32 max_d,
1843 core::array<DistanceSortedActiveObject> &dest)
1845 for(core::map<u16, ClientActiveObject*>::Iterator
1846 i = m_active_objects.getIterator();
1847 i.atEnd()==false; i++)
1849 ClientActiveObject* obj = i.getNode()->getValue();
1851 f32 d = (obj->getPosition() - origin).getLength();
1856 DistanceSortedActiveObject dso(obj, d);
1858 dest.push_back(dso);
1862 ClientEnvEvent ClientEnvironment::getClientEvent()
1864 if(m_client_event_queue.size() == 0)
1866 ClientEnvEvent event;
1867 event.type = CEE_NONE;
1870 return m_client_event_queue.pop_front();
1873 #endif // #ifndef SERVER