/*
Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GNU Lesser General Public License for more details.
-You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include <set>
+#include <list>
+#include <map>
#include "environment.h"
-#include "main.h" // g_device for timing debug
+#include "filesys.h"
+#include "porting.h"
+#include "collision.h"
+#include "content_mapnode.h"
+#include "mapblock.h"
+#include "serverobject.h"
+#include "content_sao.h"
+#include "mapgen.h"
+#include "settings.h"
+#include "log.h"
+#include "profiler.h"
+#include "scriptapi.h"
+#include "nodedef.h"
+#include "nodemetadata.h"
+#include "main.h" // For g_settings, g_profiler
+#include "gamedef.h"
+#ifndef SERVER
+#include "clientmap.h"
+#include "localplayer.h"
+#endif
+#include "daynightratio.h"
+#include "map.h"
+#include "util/serialize.h"
-Environment::Environment(Map *map, std::ostream &dout):
- m_dout(dout)
+#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
+
+Environment::Environment():
+ m_time_of_day(9000),
+ m_time_of_day_f(9000./24000),
+ m_time_of_day_speed(0),
+ m_time_counter(0)
{
- m_map = map;
- m_daynight_ratio = 0.2;
}
Environment::~Environment()
{
delete (*i);
}
-
- // The map is removed by the SceneManager
- m_map->drop();
- //delete m_map;
}
-void Environment::step(float dtime)
+void Environment::addPlayer(Player *player)
{
DSTACK(__FUNCTION_NAME);
/*
- Run Map's timers
- */
- //TimeTaker maptimerupdatetimer("m_map->timerUpdate()", g_device);
- // 0ms
- m_map->timerUpdate(dtime);
- //maptimerupdatetimer.stop();
-
- /*
- Get the highest speed some player is going
- */
- //TimeTaker playerspeed("playerspeed", g_device);
- // 0ms
- f32 maximum_player_speed = 0.001; // just some small value
- for(core::list<Player*>::Iterator i = m_players.begin();
- i != m_players.end(); i++)
- {
- f32 speed = (*i)->getSpeed().getLength();
- if(speed > maximum_player_speed)
- maximum_player_speed = speed;
- }
- //playerspeed.stop();
-
- // Maximum time increment (for collision detection etc)
- // Allow 0.1 blocks per increment
- // time = distance / speed
- f32 dtime_max_increment = 0.1*BS / maximum_player_speed;
- // Maximum time increment is 10ms or lower
- if(dtime_max_increment > 0.01)
- dtime_max_increment = 0.01;
-
- //TimeTaker playerupdate("playerupdate", g_device);
-
- /*
- Stuff that has a maximum time increment
+ Check that peer_ids are unique.
+ Also check that names are unique.
+ Exception: there can be multiple players with peer_id=0
*/
- // Don't allow overly huge dtime
- if(dtime > 0.5)
- dtime = 0.5;
-
- u32 loopcount = 0;
- do
- {
- loopcount++;
-
- f32 dtime_part;
- if(dtime > dtime_max_increment)
- dtime_part = dtime_max_increment;
- else
- dtime_part = dtime;
- dtime -= dtime_part;
-
- /*
- Handle players
- */
- for(core::list<Player*>::Iterator i = m_players.begin();
- i != m_players.end(); i++)
- {
- Player *player = *i;
-
- v3f playerpos = player->getPosition();
-
- // Apply physics to local player
- if(player->isLocal() && HAXMODE == false)
- {
- // Apply gravity to local player
- v3f speed = player->getSpeed();
- speed.Y -= 9.81 * BS * dtime_part * 2;
-
- /*
- Apply water resistance
- */
- if(player->in_water)
- {
- f32 max_down = 1.0*BS;
- if(speed.Y < -max_down) speed.Y = -max_down;
-
- f32 max = 2.5*BS;
- if(speed.getLength() > max)
- {
- speed = speed / speed.getLength() * max;
- }
- }
-
- player->setSpeed(speed);
- }
-
- /*
- Move the player.
- For local player, this also calculates collision detection.
- */
- player->move(dtime_part, *m_map);
-
- /*
- Update lighting on remote players on client
- */
- u8 light = LIGHT_MAX;
- try{
- // Get node at feet
- v3s16 p = floatToInt(playerpos + v3f(0,BS/4,0));
- MapNode n = m_map->getNode(p);
- light = n.getLightBlend(m_daynight_ratio);
- }
- catch(InvalidPositionException &e) {}
- player->updateLight(light);
-
- /*
- Add footsteps to grass
- */
- // Get node that is at BS/4 under player
- v3s16 bottompos = floatToInt(playerpos + v3f(0,-BS/4,0));
- try{
- MapNode n = m_map->getNode(bottompos);
- if(n.d == CONTENT_GRASS)
- {
- n.d = CONTENT_GRASS_FOOTSTEPS;
- m_map->setNode(bottompos, n);
-#ifndef SERVER
- // Update mesh on client
- if(m_map->mapType() == MAPTYPE_CLIENT)
- {
- v3s16 p_blocks = getNodeBlockPos(bottompos);
- MapBlock *b = m_map->getBlockNoCreate(p_blocks);
- b->updateMesh(m_daynight_ratio);
- }
-#endif
- }
- }
- catch(InvalidPositionException &e)
- {
- }
- }
- }
- while(dtime > 0.001);
-
- //std::cout<<"Looped "<<loopcount<<" times."<<std::endl;
-}
-
-Map & Environment::getMap()
-{
- return *m_map;
-}
-
-void Environment::addPlayer(Player *player)
-{
- DSTACK(__FUNCTION_NAME);
- //Check that only one local player exists and peer_ids are unique
-#ifndef SERVER
- assert(player->isLocal() == false || getLocalPlayer() == NULL);
-#endif
- assert(getPlayer(player->peer_id) == NULL);
+ // If peer id is non-zero, it has to be unique.
+ if(player->peer_id != 0)
+ assert(getPlayer(player->peer_id) == NULL);
+ // Name has to be unique.
+ assert(getPlayer(player->getName()) == NULL);
+ // Add.
m_players.push_back(player);
}
}
}
-#ifndef SERVER
-LocalPlayer * Environment::getLocalPlayer()
+Player * Environment::getPlayer(u16 peer_id)
{
for(core::list<Player*>::Iterator i = m_players.begin();
i != m_players.end(); i++)
{
Player *player = *i;
- if(player->isLocal())
- return (LocalPlayer*)player;
+ if(player->peer_id == peer_id)
+ return player;
}
return NULL;
}
-#endif
-Player * Environment::getPlayer(u16 peer_id)
+Player * Environment::getPlayer(const char *name)
{
for(core::list<Player*>::Iterator i = m_players.begin();
i != m_players.end(); i++)
{
Player *player = *i;
- if(player->peer_id == peer_id)
+ if(strcmp(player->getName(), name) == 0)
return player;
}
return NULL;
}
-Player * Environment::getPlayer(const char *name)
+Player * Environment::getRandomConnectedPlayer()
{
- for(core::list<Player*>::Iterator i = m_players.begin();
- i != m_players.end(); i++)
+ core::list<Player*> connected_players = getPlayers(true);
+ u32 chosen_one = myrand() % connected_players.size();
+ u32 j = 0;
+ for(core::list<Player*>::Iterator
+ i = connected_players.begin();
+ i != connected_players.end(); i++)
{
- Player *player = *i;
- if(strcmp(player->getName(), name) == 0)
+ if(j == chosen_one)
+ {
+ Player *player = *i;
return player;
+ }
+ j++;
}
return NULL;
}
+Player * Environment::getNearestConnectedPlayer(v3f pos)
+{
+ core::list<Player*> connected_players = getPlayers(true);
+ f32 nearest_d = 0;
+ Player *nearest_player = NULL;
+ for(core::list<Player*>::Iterator
+ i = connected_players.begin();
+ i != connected_players.end(); i++)
+ {
+ Player *player = *i;
+ f32 d = player->getPosition().getDistanceFrom(pos);
+ if(d < nearest_d || nearest_player == NULL)
+ {
+ nearest_d = d;
+ nearest_player = player;
+ }
+ }
+ return nearest_player;
+}
+
core::list<Player*> Environment::getPlayers()
{
return m_players;
}
}
-#ifndef SERVER
-void Environment::updateMeshes(v3s16 blockpos)
+u32 Environment::getDayNightRatio()
+{
+ return time_to_daynight_ratio(m_time_of_day);
+}
+
+void Environment::stepTimeOfDay(float dtime)
{
- m_map->updateMeshes(blockpos, m_daynight_ratio);
+ m_time_counter += dtime;
+ f32 speed = m_time_of_day_speed * 24000./(24.*3600);
+ u32 units = (u32)(m_time_counter*speed);
+ m_time_counter -= (f32)units / speed;
+ bool sync_f = false;
+ if(units > 0){
+ // Sync at overflow
+ if(m_time_of_day + units >= 24000)
+ sync_f = true;
+ m_time_of_day = (m_time_of_day + units) % 24000;
+ if(sync_f)
+ m_time_of_day_f = (float)m_time_of_day / 24000.0;
+ }
+ if(!sync_f){
+ m_time_of_day_f += m_time_of_day_speed/24/3600*dtime;
+ if(m_time_of_day_f > 1.0)
+ m_time_of_day_f -= 1.0;
+ if(m_time_of_day_f < 0.0)
+ m_time_of_day_f += 1.0;
+ }
}
-void Environment::expireMeshes(bool only_daynight_diffed)
+/*
+ ABMWithState
+*/
+
+ABMWithState::ABMWithState(ActiveBlockModifier *abm_):
+ abm(abm_),
+ timer(0)
{
- m_map->expireMeshes(only_daynight_diffed);
+ // Initialize timer to random value to spread processing
+ float itv = abm->getTriggerInterval();
+ itv = MYMAX(0.001, itv); // No less than 1ms
+ int minval = MYMAX(-0.51*itv, -60); // Clamp to
+ int maxval = MYMIN(0.51*itv, 60); // +-60 seconds
+ timer = myrand_range(minval, maxval);
}
-#endif
-void Environment::setDayNightRatio(u32 r)
+/*
+ ActiveBlockList
+*/
+
+void fillRadiusBlock(v3s16 p0, s16 r, core::map<v3s16, bool> &list)
{
- m_daynight_ratio = r;
+ v3s16 p;
+ for(p.X=p0.X-r; p.X<=p0.X+r; p.X++)
+ for(p.Y=p0.Y-r; p.Y<=p0.Y+r; p.Y++)
+ for(p.Z=p0.Z-r; p.Z<=p0.Z+r; p.Z++)
+ {
+ // Set in list
+ list[p] = true;
+ }
}
-u32 Environment::getDayNightRatio()
+void ActiveBlockList::update(core::list<v3s16> &active_positions,
+ s16 radius,
+ core::map<v3s16, bool> &blocks_removed,
+ core::map<v3s16, bool> &blocks_added)
+{
+ /*
+ Create the new list
+ */
+ core::map<v3s16, bool> newlist;
+ for(core::list<v3s16>::Iterator i = active_positions.begin();
+ i != active_positions.end(); i++)
+ {
+ fillRadiusBlock(*i, radius, newlist);
+ }
+
+ /*
+ Find out which blocks on the old list are not on the new list
+ */
+ // Go through old list
+ for(core::map<v3s16, bool>::Iterator i = m_list.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+ // If not on new list, it's been removed
+ if(newlist.find(p) == NULL)
+ blocks_removed.insert(p, true);
+ }
+
+ /*
+ Find out which blocks on the new list are not on the old list
+ */
+ // Go through new list
+ for(core::map<v3s16, bool>::Iterator i = newlist.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+ // If not on old list, it's been added
+ if(m_list.find(p) == NULL)
+ blocks_added.insert(p, true);
+ }
+
+ /*
+ Update m_list
+ */
+ m_list.clear();
+ for(core::map<v3s16, bool>::Iterator i = newlist.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+ m_list.insert(p, true);
+ }
+}
+
+/*
+ ServerEnvironment
+*/
+
+ServerEnvironment::ServerEnvironment(ServerMap *map, lua_State *L,
+ IGameDef *gamedef, IBackgroundBlockEmerger *emerger):
+ m_map(map),
+ m_lua(L),
+ m_gamedef(gamedef),
+ m_emerger(emerger),
+ m_random_spawn_timer(3),
+ m_send_recommended_timer(0),
+ m_active_block_interval_overload_skip(0),
+ m_game_time(0),
+ m_game_time_fraction_counter(0),
+ m_recommended_send_interval(0.1)
+{
+}
+
+ServerEnvironment::~ServerEnvironment()
+{
+ // Clear active block list.
+ // This makes the next one delete all active objects.
+ m_active_blocks.clear();
+
+ // Convert all objects to static and delete the active objects
+ deactivateFarObjects(true);
+
+ // Drop/delete map
+ m_map->drop();
+
+ // Delete ActiveBlockModifiers
+ for(core::list<ABMWithState>::Iterator
+ i = m_abms.begin(); i != m_abms.end(); i++){
+ delete i->abm;
+ }
+}
+
+Map & ServerEnvironment::getMap()
+{
+ return *m_map;
+}
+
+ServerMap & ServerEnvironment::getServerMap()
+{
+ return *m_map;
+}
+
+
+void ServerEnvironment::serializePlayers(const std::string &savedir)
{
- return m_daynight_ratio;
+ std::string players_path = savedir + "/players";
+ fs::CreateDir(players_path);
+
+ core::map<Player*, bool> saved_players;
+
+ std::vector<fs::DirListNode> player_files = fs::GetDirListing(players_path);
+ for(u32 i=0; i<player_files.size(); i++)
+ {
+ if(player_files[i].dir)
+ continue;
+
+ // Full path to this file
+ std::string path = players_path + "/" + player_files[i].name;
+
+ //infostream<<"Checking player file "<<path<<std::endl;
+
+ // Load player to see what is its name
+ RemotePlayer testplayer(m_gamedef);
+ {
+ // Open file and deserialize
+ std::ifstream is(path.c_str(), std::ios_base::binary);
+ if(is.good() == false)
+ {
+ infostream<<"Failed to read "<<path<<std::endl;
+ continue;
+ }
+ testplayer.deSerialize(is);
+ }
+
+ //infostream<<"Loaded test player with name "<<testplayer.getName()<<std::endl;
+
+ // Search for the player
+ std::string playername = testplayer.getName();
+ Player *player = getPlayer(playername.c_str());
+ if(player == NULL)
+ {
+ infostream<<"Didn't find matching player, ignoring file "<<path<<std::endl;
+ continue;
+ }
+
+ //infostream<<"Found matching player, overwriting."<<std::endl;
+
+ // OK, found. Save player there.
+ {
+ // Open file and serialize
+ std::ofstream os(path.c_str(), std::ios_base::binary);
+ if(os.good() == false)
+ {
+ infostream<<"Failed to overwrite "<<path<<std::endl;
+ continue;
+ }
+ player->serialize(os);
+ saved_players.insert(player, true);
+ }
+ }
+
+ for(core::list<Player*>::Iterator i = m_players.begin();
+ i != m_players.end(); i++)
+ {
+ Player *player = *i;
+ if(saved_players.find(player) != NULL)
+ {
+ /*infostream<<"Player "<<player->getName()
+ <<" was already saved."<<std::endl;*/
+ continue;
+ }
+ std::string playername = player->getName();
+ // Don't save unnamed player
+ if(playername == "")
+ {
+ //infostream<<"Not saving unnamed player."<<std::endl;
+ continue;
+ }
+ /*
+ Find a sane filename
+ */
+ if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS) == false)
+ playername = "player";
+ std::string path = players_path + "/" + playername;
+ bool found = false;
+ for(u32 i=0; i<1000; i++)
+ {
+ if(fs::PathExists(path) == false)
+ {
+ found = true;
+ break;
+ }
+ path = players_path + "/" + playername + itos(i);
+ }
+ if(found == false)
+ {
+ infostream<<"Didn't find free file for player"<<std::endl;
+ continue;
+ }
+
+ {
+ /*infostream<<"Saving player "<<player->getName()<<" to "
+ <<path<<std::endl;*/
+ // Open file and serialize
+ std::ofstream os(path.c_str(), std::ios_base::binary);
+ if(os.good() == false)
+ {
+ infostream<<"Failed to overwrite "<<path<<std::endl;
+ continue;
+ }
+ player->serialize(os);
+ saved_players.insert(player, true);
+ }
+ }
+
+ //infostream<<"Saved "<<saved_players.size()<<" players."<<std::endl;
}
+void ServerEnvironment::deSerializePlayers(const std::string &savedir)
+{
+ std::string players_path = savedir + "/players";
+
+ core::map<Player*, bool> saved_players;
+
+ std::vector<fs::DirListNode> player_files = fs::GetDirListing(players_path);
+ for(u32 i=0; i<player_files.size(); i++)
+ {
+ if(player_files[i].dir)
+ continue;
+
+ // Full path to this file
+ std::string path = players_path + "/" + player_files[i].name;
+
+ //infostream<<"Checking player file "<<path<<std::endl;
+
+ // Load player to see what is its name
+ RemotePlayer testplayer(m_gamedef);
+ {
+ // Open file and deserialize
+ std::ifstream is(path.c_str(), std::ios_base::binary);
+ if(is.good() == false)
+ {
+ infostream<<"Failed to read "<<path<<std::endl;
+ continue;
+ }
+ testplayer.deSerialize(is);
+ }
+
+ if(!string_allowed(testplayer.getName(), PLAYERNAME_ALLOWED_CHARS))
+ {
+ infostream<<"Not loading player with invalid name: "
+ <<testplayer.getName()<<std::endl;
+ }
+
+ /*infostream<<"Loaded test player with name "<<testplayer.getName()
+ <<std::endl;*/
+
+ // Search for the player
+ std::string playername = testplayer.getName();
+ Player *player = getPlayer(playername.c_str());
+ bool newplayer = false;
+ if(player == NULL)
+ {
+ //infostream<<"Is a new player"<<std::endl;
+ player = new RemotePlayer(m_gamedef);
+ newplayer = true;
+ }
+
+ // Load player
+ {
+ verbosestream<<"Reading player "<<testplayer.getName()<<" from "
+ <<path<<std::endl;
+ // Open file and deserialize
+ std::ifstream is(path.c_str(), std::ios_base::binary);
+ if(is.good() == false)
+ {
+ infostream<<"Failed to read "<<path<<std::endl;
+ continue;
+ }
+ player->deSerialize(is);
+ }
+
+ if(newplayer)
+ {
+ addPlayer(player);
+ }
+ }
+}
+
+void ServerEnvironment::saveMeta(const std::string &savedir)
+{
+ std::string path = savedir + "/env_meta.txt";
+
+ // Open file and serialize
+ std::ofstream os(path.c_str(), std::ios_base::binary);
+ if(os.good() == false)
+ {
+ infostream<<"ServerEnvironment::saveMeta(): Failed to open "
+ <<path<<std::endl;
+ throw SerializationError("Couldn't save env meta");
+ }
+
+ Settings args;
+ args.setU64("game_time", m_game_time);
+ args.setU64("time_of_day", getTimeOfDay());
+ args.writeLines(os);
+ os<<"EnvArgsEnd\n";
+}
+
+void ServerEnvironment::loadMeta(const std::string &savedir)
+{
+ std::string path = savedir + "/env_meta.txt";
+
+ // Open file and deserialize
+ std::ifstream is(path.c_str(), std::ios_base::binary);
+ if(is.good() == false)
+ {
+ infostream<<"ServerEnvironment::loadMeta(): Failed to open "
+ <<path<<std::endl;
+ throw SerializationError("Couldn't load env meta");
+ }
+
+ Settings args;
+
+ for(;;)
+ {
+ if(is.eof())
+ throw SerializationError
+ ("ServerEnvironment::loadMeta(): EnvArgsEnd not found");
+ std::string line;
+ std::getline(is, line);
+ std::string trimmedline = trim(line);
+ if(trimmedline == "EnvArgsEnd")
+ break;
+ args.parseConfigLine(line);
+ }
+
+ try{
+ m_game_time = args.getU64("game_time");
+ }catch(SettingNotFoundException &e){
+ // Getting this is crucial, otherwise timestamps are useless
+ throw SerializationError("Couldn't load env meta game_time");
+ }
+
+ try{
+ m_time_of_day = args.getU64("time_of_day");
+ }catch(SettingNotFoundException &e){
+ // This is not as important
+ m_time_of_day = 9000;
+ }
+}
+
+struct ActiveABM
+{
+ ActiveBlockModifier *abm;
+ int chance;
+ std::set<content_t> required_neighbors;
+};
+
+class ABMHandler
+{
+private:
+ ServerEnvironment *m_env;
+ std::map<content_t, std::list<ActiveABM> > m_aabms;
+public:
+ ABMHandler(core::list<ABMWithState> &abms,
+ float dtime_s, ServerEnvironment *env,
+ bool use_timers):
+ m_env(env)
+ {
+ if(dtime_s < 0.001)
+ return;
+ INodeDefManager *ndef = env->getGameDef()->ndef();
+ for(core::list<ABMWithState>::Iterator
+ i = abms.begin(); i != abms.end(); i++){
+ ActiveBlockModifier *abm = i->abm;
+ float trigger_interval = abm->getTriggerInterval();
+ if(trigger_interval < 0.001)
+ trigger_interval = 0.001;
+ float actual_interval = dtime_s;
+ if(use_timers){
+ i->timer += dtime_s;
+ if(i->timer < trigger_interval)
+ continue;
+ i->timer -= trigger_interval;
+ actual_interval = trigger_interval;
+ }
+ float intervals = actual_interval / trigger_interval;
+ if(intervals == 0)
+ continue;
+ float chance = abm->getTriggerChance();
+ if(chance == 0)
+ chance = 1;
+ ActiveABM aabm;
+ aabm.abm = abm;
+ aabm.chance = chance / intervals;
+ if(aabm.chance == 0)
+ aabm.chance = 1;
+ // Trigger neighbors
+ std::set<std::string> required_neighbors_s
+ = abm->getRequiredNeighbors();
+ for(std::set<std::string>::iterator
+ i = required_neighbors_s.begin();
+ i != required_neighbors_s.end(); i++)
+ {
+ ndef->getIds(*i, aabm.required_neighbors);
+ }
+ // Trigger contents
+ std::set<std::string> contents_s = abm->getTriggerContents();
+ for(std::set<std::string>::iterator
+ i = contents_s.begin(); i != contents_s.end(); i++)
+ {
+ std::set<content_t> ids;
+ ndef->getIds(*i, ids);
+ for(std::set<content_t>::const_iterator k = ids.begin();
+ k != ids.end(); k++)
+ {
+ content_t c = *k;
+ std::map<content_t, std::list<ActiveABM> >::iterator j;
+ j = m_aabms.find(c);
+ if(j == m_aabms.end()){
+ std::list<ActiveABM> aabmlist;
+ m_aabms[c] = aabmlist;
+ j = m_aabms.find(c);
+ }
+ j->second.push_back(aabm);
+ }
+ }
+ }
+ }
+ void apply(MapBlock *block)
+ {
+ if(m_aabms.empty())
+ return;
+
+ ServerMap *map = &m_env->getServerMap();
+
+ v3s16 p0;
+ for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
+ for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
+ for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
+ {
+ MapNode n = block->getNodeNoEx(p0);
+ content_t c = n.getContent();
+ v3s16 p = p0 + block->getPosRelative();
+
+ std::map<content_t, std::list<ActiveABM> >::iterator j;
+ j = m_aabms.find(c);
+ if(j == m_aabms.end())
+ continue;
+
+ for(std::list<ActiveABM>::iterator
+ i = j->second.begin(); i != j->second.end(); i++)
+ {
+ if(myrand() % i->chance != 0)
+ continue;
+
+ // Check neighbors
+ if(!i->required_neighbors.empty())
+ {
+ v3s16 p1;
+ for(p1.X = p.X-1; p1.X <= p.X+1; p1.X++)
+ for(p1.Y = p.Y-1; p1.Y <= p.Y+1; p1.Y++)
+ for(p1.Z = p.Z-1; p1.Z <= p.Z+1; p1.Z++)
+ {
+ if(p1 == p)
+ continue;
+ MapNode n = map->getNodeNoEx(p1);
+ content_t c = n.getContent();
+ std::set<content_t>::const_iterator k;
+ k = i->required_neighbors.find(c);
+ if(k != i->required_neighbors.end()){
+ goto neighbor_found;
+ }
+ }
+ // No required neighbor found
+ continue;
+ }
+neighbor_found:
+
+ // Find out how many objects the block contains
+ u32 active_object_count = block->m_static_objects.m_active.size();
+ // Find out how many objects this and all the neighbors contain
+ u32 active_object_count_wider = 0;
+ u32 wider_unknown_count = 0;
+ for(s16 x=-1; x<=1; x++)
+ for(s16 y=-1; y<=1; y++)
+ for(s16 z=-1; z<=1; z++)
+ {
+ MapBlock *block2 = map->getBlockNoCreateNoEx(
+ block->getPos() + v3s16(x,y,z));
+ if(block2==NULL){
+ wider_unknown_count = 0;
+ continue;
+ }
+ active_object_count_wider +=
+ block2->m_static_objects.m_active.size()
+ + block2->m_static_objects.m_stored.size();
+ }
+ // Extrapolate
+ u32 wider_known_count = 3*3*3 - wider_unknown_count;
+ active_object_count_wider += wider_unknown_count * active_object_count_wider / wider_known_count;
+
+ // Call all the trigger variations
+ i->abm->trigger(m_env, p, n);
+ i->abm->trigger(m_env, p, n,
+ active_object_count, active_object_count_wider);
+ }
+ }
+ }
+};
+
+void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
+{
+ // Get time difference
+ u32 dtime_s = 0;
+ u32 stamp = block->getTimestamp();
+ if(m_game_time > stamp && stamp != BLOCK_TIMESTAMP_UNDEFINED)
+ dtime_s = m_game_time - block->getTimestamp();
+ dtime_s += additional_dtime;
+
+ /*infostream<<"ServerEnvironment::activateBlock(): block timestamp: "
+ <<stamp<<", game time: "<<m_game_time<<std::endl;*/
+
+ // Set current time as timestamp
+ block->setTimestampNoChangedFlag(m_game_time);
+
+ /*infostream<<"ServerEnvironment::activateBlock(): block is "
+ <<dtime_s<<" seconds old."<<std::endl;*/
+
+ // Activate stored objects
+ activateObjects(block, dtime_s);
+
+ // Run node timers
+ std::map<v3s16, NodeTimer> elapsed_timers =
+ block->m_node_timers.step((float)dtime_s);
+ if(!elapsed_timers.empty()){
+ MapNode n;
+ for(std::map<v3s16, NodeTimer>::iterator
+ i = elapsed_timers.begin();
+ i != elapsed_timers.end(); i++){
+ n = block->getNodeNoEx(i->first);
+ if(scriptapi_node_on_timer(m_lua,i->first,n,i->second.elapsed))
+ block->setNodeTimer(i->first,NodeTimer(i->second.timeout,0));
+ }
+ }
+
+ /* Handle ActiveBlockModifiers */
+ ABMHandler abmhandler(m_abms, dtime_s, this, false);
+ abmhandler.apply(block);
+}
+
+void ServerEnvironment::addActiveBlockModifier(ActiveBlockModifier *abm)
+{
+ m_abms.push_back(ABMWithState(abm));
+}
+
+std::set<u16> ServerEnvironment::getObjectsInsideRadius(v3f pos, float radius)
+{
+ std::set<u16> objects;
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ ServerActiveObject* obj = i.getNode()->getValue();
+ u16 id = i.getNode()->getKey();
+ v3f objectpos = obj->getBasePosition();
+ if(objectpos.getDistanceFrom(pos) > radius)
+ continue;
+ objects.insert(id);
+ }
+ return objects;
+}
+
+void ServerEnvironment::clearAllObjects()
+{
+ infostream<<"ServerEnvironment::clearAllObjects(): "
+ <<"Removing all active objects"<<std::endl;
+ core::list<u16> objects_to_remove;
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ ServerActiveObject* obj = i.getNode()->getValue();
+ if(obj->getType() == ACTIVEOBJECT_TYPE_PLAYER)
+ continue;
+ u16 id = i.getNode()->getKey();
+ v3f objectpos = obj->getBasePosition();
+ // Delete static object if block is loaded
+ if(obj->m_static_exists){
+ MapBlock *block = m_map->getBlockNoCreateNoEx(obj->m_static_block);
+ if(block){
+ block->m_static_objects.remove(id);
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "clearAllObjects");
+ obj->m_static_exists = false;
+ }
+ }
+ // If known by some client, don't delete immediately
+ if(obj->m_known_by_count > 0){
+ obj->m_pending_deactivation = true;
+ obj->m_removed = true;
+ continue;
+ }
+
+ // Tell the object about removal
+ obj->removingFromEnvironment();
+ // Deregister in scripting api
+ scriptapi_rm_object_reference(m_lua, obj);
+
+ // Delete active object
+ if(obj->environmentDeletes())
+ delete obj;
+ // Id to be removed from m_active_objects
+ objects_to_remove.push_back(id);
+ }
+ // Remove references from m_active_objects
+ for(core::list<u16>::Iterator i = objects_to_remove.begin();
+ i != objects_to_remove.end(); i++)
+ {
+ m_active_objects.remove(*i);
+ }
+
+ core::list<v3s16> loadable_blocks;
+ infostream<<"ServerEnvironment::clearAllObjects(): "
+ <<"Listing all loadable blocks"<<std::endl;
+ m_map->listAllLoadableBlocks(loadable_blocks);
+ infostream<<"ServerEnvironment::clearAllObjects(): "
+ <<"Done listing all loadable blocks: "
+ <<loadable_blocks.size()
+ <<", now clearing"<<std::endl;
+ u32 report_interval = loadable_blocks.size() / 10;
+ u32 num_blocks_checked = 0;
+ u32 num_blocks_cleared = 0;
+ u32 num_objs_cleared = 0;
+ for(core::list<v3s16>::Iterator i = loadable_blocks.begin();
+ i != loadable_blocks.end(); i++)
+ {
+ v3s16 p = *i;
+ MapBlock *block = m_map->emergeBlock(p, false);
+ if(!block){
+ errorstream<<"ServerEnvironment::clearAllObjects(): "
+ <<"Failed to emerge block "<<PP(p)<<std::endl;
+ continue;
+ }
+ u32 num_stored = block->m_static_objects.m_stored.size();
+ u32 num_active = block->m_static_objects.m_active.size();
+ if(num_stored != 0 || num_active != 0){
+ block->m_static_objects.m_stored.clear();
+ block->m_static_objects.m_active.clear();
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "clearAllObjects");
+ num_objs_cleared += num_stored + num_active;
+ num_blocks_cleared++;
+ }
+ num_blocks_checked++;
+
+ if(num_blocks_checked % report_interval == 0){
+ float percent = 100.0 * (float)num_blocks_checked /
+ loadable_blocks.size();
+ infostream<<"ServerEnvironment::clearAllObjects(): "
+ <<"Cleared "<<num_objs_cleared<<" objects"
+ <<" in "<<num_blocks_cleared<<" blocks ("
+ <<percent<<"%)"<<std::endl;
+ }
+ }
+ infostream<<"ServerEnvironment::clearAllObjects(): "
+ <<"Finished: Cleared "<<num_objs_cleared<<" objects"
+ <<" in "<<num_blocks_cleared<<" blocks"<<std::endl;
+}
+
+void ServerEnvironment::step(float dtime)
+{
+ DSTACK(__FUNCTION_NAME);
+
+ //TimeTaker timer("ServerEnv step");
+
+ /* Step time of day */
+ stepTimeOfDay(dtime);
+
+ // Update this one
+ // NOTE: This is kind of funny on a singleplayer game, but doesn't
+ // really matter that much.
+ m_recommended_send_interval = g_settings->getFloat("dedicated_server_step");
+
+ /*
+ Increment game time
+ */
+ {
+ m_game_time_fraction_counter += dtime;
+ u32 inc_i = (u32)m_game_time_fraction_counter;
+ m_game_time += inc_i;
+ m_game_time_fraction_counter -= (float)inc_i;
+ }
+
+ /*
+ Handle players
+ */
+ {
+ ScopeProfiler sp(g_profiler, "SEnv: handle players avg", SPT_AVG);
+ for(core::list<Player*>::Iterator i = m_players.begin();
+ i != m_players.end(); i++)
+ {
+ Player *player = *i;
+
+ // Ignore disconnected players
+ if(player->peer_id == 0)
+ continue;
+
+ v3f playerpos = player->getPosition();
+
+ // Move
+ player->move(dtime, *m_map, 100*BS);
+ }
+ }
+
+ /*
+ Manage active block list
+ */
+ if(m_active_blocks_management_interval.step(dtime, 2.0))
+ {
+ ScopeProfiler sp(g_profiler, "SEnv: manage act. block list avg /2s", SPT_AVG);
+ /*
+ Get player block positions
+ */
+ core::list<v3s16> players_blockpos;
+ for(core::list<Player*>::Iterator
+ i = m_players.begin();
+ i != m_players.end(); i++)
+ {
+ Player *player = *i;
+ // Ignore disconnected players
+ if(player->peer_id == 0)
+ continue;
+ v3s16 blockpos = getNodeBlockPos(
+ floatToInt(player->getPosition(), BS));
+ players_blockpos.push_back(blockpos);
+ }
+
+ /*
+ Update list of active blocks, collecting changes
+ */
+ const s16 active_block_range = g_settings->getS16("active_block_range");
+ core::map<v3s16, bool> blocks_removed;
+ core::map<v3s16, bool> blocks_added;
+ m_active_blocks.update(players_blockpos, active_block_range,
+ blocks_removed, blocks_added);
+
+ /*
+ Handle removed blocks
+ */
+
+ // Convert active objects that are no more in active blocks to static
+ deactivateFarObjects(false);
+
+ for(core::map<v3s16, bool>::Iterator
+ i = blocks_removed.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+
+ /*infostream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
+ <<") became inactive"<<std::endl;*/
+
+ MapBlock *block = m_map->getBlockNoCreateNoEx(p);
+ if(block==NULL)
+ continue;
+
+ // Set current time as timestamp (and let it set ChangedFlag)
+ block->setTimestamp(m_game_time);
+ }
+
+ /*
+ Handle added blocks
+ */
+
+ for(core::map<v3s16, bool>::Iterator
+ i = blocks_added.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+
+ /*infostream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
+ <<") became active"<<std::endl;*/
+
+ MapBlock *block = m_map->getBlockNoCreateNoEx(p);
+ if(block==NULL){
+ // Block needs to be fetched first
+ m_emerger->queueBlockEmerge(p, false);
+ m_active_blocks.m_list.remove(p);
+ continue;
+ }
+
+ activateBlock(block);
+ }
+ }
+
+ /*
+ Mess around in active blocks
+ */
+ if(m_active_blocks_nodemetadata_interval.step(dtime, 1.0))
+ {
+ ScopeProfiler sp(g_profiler, "SEnv: mess in act. blocks avg /1s", SPT_AVG);
+
+ float dtime = 1.0;
+
+ for(core::map<v3s16, bool>::Iterator
+ i = m_active_blocks.m_list.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+
+ /*infostream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
+ <<") being handled"<<std::endl;*/
+
+ MapBlock *block = m_map->getBlockNoCreateNoEx(p);
+ if(block==NULL)
+ continue;
+
+ // Reset block usage timer
+ block->resetUsageTimer();
+
+ // Set current time as timestamp
+ block->setTimestampNoChangedFlag(m_game_time);
+ // If time has changed much from the one on disk,
+ // set block to be saved when it is unloaded
+ if(block->getTimestamp() > block->getDiskTimestamp() + 60)
+ block->raiseModified(MOD_STATE_WRITE_AT_UNLOAD,
+ "Timestamp older than 60s (step)");
+
+ // Run node timers
+ std::map<v3s16, NodeTimer> elapsed_timers =
+ block->m_node_timers.step((float)dtime);
+ if(!elapsed_timers.empty()){
+ MapNode n;
+ for(std::map<v3s16, NodeTimer>::iterator
+ i = elapsed_timers.begin();
+ i != elapsed_timers.end(); i++){
+ n = block->getNodeNoEx(i->first);
+ p = i->first + block->getPosRelative();
+ if(scriptapi_node_on_timer(m_lua,p,n,i->second.elapsed))
+ block->setNodeTimer(i->first,NodeTimer(i->second.timeout,0));
+ }
+ }
+ }
+ }
+
+ const float abm_interval = 1.0;
+ if(m_active_block_modifier_interval.step(dtime, abm_interval))
+ do{ // breakable
+ if(m_active_block_interval_overload_skip > 0){
+ ScopeProfiler sp(g_profiler, "SEnv: ABM overload skips");
+ m_active_block_interval_overload_skip--;
+ break;
+ }
+ ScopeProfiler sp(g_profiler, "SEnv: modify in blocks avg /1s", SPT_AVG);
+ TimeTaker timer("modify in active blocks");
+
+ // Initialize handling of ActiveBlockModifiers
+ ABMHandler abmhandler(m_abms, abm_interval, this, true);
+
+ for(core::map<v3s16, bool>::Iterator
+ i = m_active_blocks.m_list.getIterator();
+ i.atEnd()==false; i++)
+ {
+ v3s16 p = i.getNode()->getKey();
+
+ /*infostream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
+ <<") being handled"<<std::endl;*/
+
+ MapBlock *block = m_map->getBlockNoCreateNoEx(p);
+ if(block==NULL)
+ continue;
+
+ // Set current time as timestamp
+ block->setTimestampNoChangedFlag(m_game_time);
+
+ /* Handle ActiveBlockModifiers */
+ abmhandler.apply(block);
+ }
+
+ u32 time_ms = timer.stop(true);
+ u32 max_time_ms = 200;
+ if(time_ms > max_time_ms){
+ infostream<<"WARNING: active block modifiers took "
+ <<time_ms<<"ms (longer than "
+ <<max_time_ms<<"ms)"<<std::endl;
+ m_active_block_interval_overload_skip = (time_ms / max_time_ms) + 1;
+ }
+ }while(0);
+
+ /*
+ Step script environment (run global on_step())
+ */
+ scriptapi_environment_step(m_lua, dtime);
+
+ /*
+ Step active objects
+ */
+ {
+ ScopeProfiler sp(g_profiler, "SEnv: step act. objs avg", SPT_AVG);
+ //TimeTaker timer("Step active objects");
+
+ g_profiler->avg("SEnv: num of objects", m_active_objects.size());
+
+ // This helps the objects to send data at the same time
+ bool send_recommended = false;
+ m_send_recommended_timer += dtime;
+ if(m_send_recommended_timer > getSendRecommendedInterval())
+ {
+ m_send_recommended_timer -= getSendRecommendedInterval();
+ send_recommended = true;
+ }
+
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ ServerActiveObject* obj = i.getNode()->getValue();
+ // Remove non-peaceful mobs on peaceful mode
+ if(g_settings->getBool("only_peaceful_mobs")){
+ if(!obj->isPeaceful())
+ obj->m_removed = true;
+ }
+ // Don't step if is to be removed or stored statically
+ if(obj->m_removed || obj->m_pending_deactivation)
+ continue;
+ // Step object
+ obj->step(dtime, send_recommended);
+ // Read messages from object
+ while(obj->m_messages_out.size() > 0)
+ {
+ m_active_object_messages.push_back(
+ obj->m_messages_out.pop_front());
+ }
+ }
+ }
+
+ /*
+ Manage active objects
+ */
+ if(m_object_management_interval.step(dtime, 0.5))
+ {
+ ScopeProfiler sp(g_profiler, "SEnv: remove removed objs avg /.5s", SPT_AVG);
+ /*
+ Remove objects that satisfy (m_removed && m_known_by_count==0)
+ */
+ removeRemovedObjects();
+ }
+}
+
+ServerActiveObject* ServerEnvironment::getActiveObject(u16 id)
+{
+ core::map<u16, ServerActiveObject*>::Node *n;
+ n = m_active_objects.find(id);
+ if(n == NULL)
+ return NULL;
+ return n->getValue();
+}
+
+bool isFreeServerActiveObjectId(u16 id,
+ core::map<u16, ServerActiveObject*> &objects)
+{
+ if(id == 0)
+ return false;
+
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ if(i.getNode()->getKey() == id)
+ return false;
+ }
+ return true;
+}
+
+u16 getFreeServerActiveObjectId(
+ core::map<u16, ServerActiveObject*> &objects)
+{
+ u16 new_id = 1;
+ for(;;)
+ {
+ if(isFreeServerActiveObjectId(new_id, objects))
+ return new_id;
+
+ if(new_id == 65535)
+ return 0;
+
+ new_id++;
+ }
+}
+
+u16 ServerEnvironment::addActiveObject(ServerActiveObject *object)
+{
+ assert(object);
+ u16 id = addActiveObjectRaw(object, true, 0);
+ return id;
+}
+
+bool ServerEnvironment::addActiveObjectAsStatic(ServerActiveObject *obj)
+{
+ assert(obj);
+
+ v3f objectpos = obj->getBasePosition();
+
+ // The block in which the object resides in
+ v3s16 blockpos_o = getNodeBlockPos(floatToInt(objectpos, BS));
+
+ /*
+ Update the static data
+ */
+
+ // Create new static object
+ std::string staticdata = obj->getStaticData();
+ StaticObject s_obj(obj->getType(), objectpos, staticdata);
+ // Add to the block where the object is located in
+ v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
+ // Get or generate the block
+ MapBlock *block = m_map->emergeBlock(blockpos);
+
+ bool succeeded = false;
+
+ if(block)
+ {
+ block->m_static_objects.insert(0, s_obj);
+ block->raiseModified(MOD_STATE_WRITE_AT_UNLOAD,
+ "addActiveObjectAsStatic");
+ succeeded = true;
+ }
+ else{
+ infostream<<"ServerEnvironment::addActiveObjectAsStatic: "
+ <<"Could not find or generate "
+ <<"a block for storing static object"<<std::endl;
+ succeeded = false;
+ }
+
+ if(obj->environmentDeletes())
+ delete obj;
+
+ return succeeded;
+}
+
+/*
+ Finds out what new objects have been added to
+ inside a radius around a position
+*/
+void ServerEnvironment::getAddedActiveObjects(v3s16 pos, s16 radius,
+ core::map<u16, bool> ¤t_objects,
+ core::map<u16, bool> &added_objects)
+{
+ v3f pos_f = intToFloat(pos, BS);
+ f32 radius_f = radius * BS;
+ /*
+ Go through the object list,
+ - discard m_removed objects,
+ - discard objects that are too far away,
+ - discard objects that are found in current_objects.
+ - add remaining objects to added_objects
+ */
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ u16 id = i.getNode()->getKey();
+ // Get object
+ ServerActiveObject *object = i.getNode()->getValue();
+ if(object == NULL)
+ continue;
+ // Discard if removed
+ if(object->m_removed)
+ continue;
+ if(object->unlimitedTransferDistance() == false){
+ // Discard if too far
+ f32 distance_f = object->getBasePosition().getDistanceFrom(pos_f);
+ if(distance_f > radius_f)
+ continue;
+ }
+ // Discard if already on current_objects
+ core::map<u16, bool>::Node *n;
+ n = current_objects.find(id);
+ if(n != NULL)
+ continue;
+ // Add to added_objects
+ added_objects.insert(id, false);
+ }
+}
+
+/*
+ Finds out what objects have been removed from
+ inside a radius around a position
+*/
+void ServerEnvironment::getRemovedActiveObjects(v3s16 pos, s16 radius,
+ core::map<u16, bool> ¤t_objects,
+ core::map<u16, bool> &removed_objects)
+{
+ v3f pos_f = intToFloat(pos, BS);
+ f32 radius_f = radius * BS;
+ /*
+ Go through current_objects; object is removed if:
+ - object is not found in m_active_objects (this is actually an
+ error condition; objects should be set m_removed=true and removed
+ only after all clients have been informed about removal), or
+ - object has m_removed=true, or
+ - object is too far away
+ */
+ for(core::map<u16, bool>::Iterator
+ i = current_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ u16 id = i.getNode()->getKey();
+ ServerActiveObject *object = getActiveObject(id);
+
+ if(object == NULL){
+ infostream<<"ServerEnvironment::getRemovedActiveObjects():"
+ <<" object in current_objects is NULL"<<std::endl;
+ removed_objects.insert(id, false);
+ continue;
+ }
+
+ if(object->m_removed)
+ {
+ removed_objects.insert(id, false);
+ continue;
+ }
+
+ // If transfer distance is unlimited, don't remove
+ if(object->unlimitedTransferDistance())
+ continue;
+
+ f32 distance_f = object->getBasePosition().getDistanceFrom(pos_f);
+
+ if(distance_f >= radius_f)
+ {
+ removed_objects.insert(id, false);
+ continue;
+ }
+
+ // Not removed
+ }
+}
+
+ActiveObjectMessage ServerEnvironment::getActiveObjectMessage()
+{
+ if(m_active_object_messages.size() == 0)
+ return ActiveObjectMessage(0);
+
+ return m_active_object_messages.pop_front();
+}
+
+/*
+ ************ Private methods *************
+*/
+
+u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
+ bool set_changed, u32 dtime_s)
+{
+ assert(object);
+ if(object->getId() == 0){
+ u16 new_id = getFreeServerActiveObjectId(m_active_objects);
+ if(new_id == 0)
+ {
+ errorstream<<"ServerEnvironment::addActiveObjectRaw(): "
+ <<"no free ids available"<<std::endl;
+ if(object->environmentDeletes())
+ delete object;
+ return 0;
+ }
+ object->setId(new_id);
+ }
+ else{
+ verbosestream<<"ServerEnvironment::addActiveObjectRaw(): "
+ <<"supplied with id "<<object->getId()<<std::endl;
+ }
+ if(isFreeServerActiveObjectId(object->getId(), m_active_objects) == false)
+ {
+ errorstream<<"ServerEnvironment::addActiveObjectRaw(): "
+ <<"id is not free ("<<object->getId()<<")"<<std::endl;
+ if(object->environmentDeletes())
+ delete object;
+ return 0;
+ }
+ /*infostream<<"ServerEnvironment::addActiveObjectRaw(): "
+ <<"added (id="<<object->getId()<<")"<<std::endl;*/
+
+ m_active_objects.insert(object->getId(), object);
+
+ verbosestream<<"ServerEnvironment::addActiveObjectRaw(): "
+ <<"Added id="<<object->getId()<<"; there are now "
+ <<m_active_objects.size()<<" active objects."
+ <<std::endl;
+
+ // Register reference in scripting api (must be done before post-init)
+ scriptapi_add_object_reference(m_lua, object);
+ // Post-initialize object
+ object->addedToEnvironment(dtime_s);
+
+ // Add static data to block
+ if(object->isStaticAllowed())
+ {
+ // Add static object to active static list of the block
+ v3f objectpos = object->getBasePosition();
+ std::string staticdata = object->getStaticData();
+ StaticObject s_obj(object->getType(), objectpos, staticdata);
+ // Add to the block where the object is located in
+ v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
+ MapBlock *block = m_map->getBlockNoCreateNoEx(blockpos);
+ if(block)
+ {
+ block->m_static_objects.m_active.insert(object->getId(), s_obj);
+ object->m_static_exists = true;
+ object->m_static_block = blockpos;
+
+ if(set_changed)
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "addActiveObjectRaw");
+ }
+ else{
+ v3s16 p = floatToInt(objectpos, BS);
+ errorstream<<"ServerEnvironment::addActiveObjectRaw(): "
+ <<"could not find block for storing id="<<object->getId()
+ <<" statically (pos="<<PP(p)<<")"<<std::endl;
+ }
+ }
+
+ return object->getId();
+}
+
+/*
+ Remove objects that satisfy (m_removed && m_known_by_count==0)
+*/
+void ServerEnvironment::removeRemovedObjects()
+{
+ core::list<u16> objects_to_remove;
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ u16 id = i.getNode()->getKey();
+ ServerActiveObject* obj = i.getNode()->getValue();
+ // This shouldn't happen but check it
+ if(obj == NULL)
+ {
+ infostream<<"NULL object found in ServerEnvironment"
+ <<" while finding removed objects. id="<<id<<std::endl;
+ // Id to be removed from m_active_objects
+ objects_to_remove.push_back(id);
+ continue;
+ }
+
+ /*
+ We will delete objects that are marked as removed or thatare
+ waiting for deletion after deactivation
+ */
+ if(obj->m_removed == false && obj->m_pending_deactivation == false)
+ continue;
+
+ /*
+ Delete static data from block if is marked as removed
+ */
+ if(obj->m_static_exists && obj->m_removed)
+ {
+ MapBlock *block = m_map->emergeBlock(obj->m_static_block);
+ if(block)
+ {
+ block->m_static_objects.remove(id);
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "removeRemovedObjects");
+ obj->m_static_exists = false;
+ }
+ }
+
+ // If m_known_by_count > 0, don't actually remove.
+ if(obj->m_known_by_count > 0)
+ continue;
+
+ // Tell the object about removal
+ obj->removingFromEnvironment();
+ // Deregister in scripting api
+ scriptapi_rm_object_reference(m_lua, obj);
+
+ // Delete
+ if(obj->environmentDeletes())
+ delete obj;
+ // Id to be removed from m_active_objects
+ objects_to_remove.push_back(id);
+ }
+ // Remove references from m_active_objects
+ for(core::list<u16>::Iterator i = objects_to_remove.begin();
+ i != objects_to_remove.end(); i++)
+ {
+ m_active_objects.remove(*i);
+ }
+}
+
+static void print_hexdump(std::ostream &o, const std::string &data)
+{
+ const int linelength = 16;
+ for(int l=0; ; l++){
+ int i0 = linelength * l;
+ bool at_end = false;
+ int thislinelength = linelength;
+ if(i0 + thislinelength > (int)data.size()){
+ thislinelength = data.size() - i0;
+ at_end = true;
+ }
+ for(int di=0; di<linelength; di++){
+ int i = i0 + di;
+ char buf[4];
+ if(di<thislinelength)
+ snprintf(buf, 4, "%.2x ", data[i]);
+ else
+ snprintf(buf, 4, " ");
+ o<<buf;
+ }
+ o<<" ";
+ for(int di=0; di<thislinelength; di++){
+ int i = i0 + di;
+ if(data[i] >= 32)
+ o<<data[i];
+ else
+ o<<".";
+ }
+ o<<std::endl;
+ if(at_end)
+ break;
+ }
+}
+
+/*
+ Convert stored objects from blocks near the players to active.
+*/
+void ServerEnvironment::activateObjects(MapBlock *block, u32 dtime_s)
+{
+ if(block==NULL)
+ return;
+ // Ignore if no stored objects (to not set changed flag)
+ if(block->m_static_objects.m_stored.size() == 0)
+ return;
+ verbosestream<<"ServerEnvironment::activateObjects(): "
+ <<"activating objects of block "<<PP(block->getPos())
+ <<" ("<<block->m_static_objects.m_stored.size()
+ <<" objects)"<<std::endl;
+ bool large_amount = (block->m_static_objects.m_stored.size() > 49);
+ if(large_amount){
+ errorstream<<"suspiciously large amount of objects detected: "
+ <<block->m_static_objects.m_stored.size()<<" in "
+ <<PP(block->getPos())
+ <<"; removing all of them."<<std::endl;
+ // Clear stored list
+ block->m_static_objects.m_stored.clear();
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "stored list cleared in activateObjects due to "
+ "large amount of objects");
+ return;
+ }
+ // A list for objects that couldn't be converted to active for some
+ // reason. They will be stored back.
+ core::list<StaticObject> new_stored;
+ // Loop through stored static objects
+ for(core::list<StaticObject>::Iterator
+ i = block->m_static_objects.m_stored.begin();
+ i != block->m_static_objects.m_stored.end(); i++)
+ {
+ /*infostream<<"Server: Creating an active object from "
+ <<"static data"<<std::endl;*/
+ StaticObject &s_obj = *i;
+ // Create an active object from the data
+ ServerActiveObject *obj = ServerActiveObject::create
+ (s_obj.type, this, 0, s_obj.pos, s_obj.data);
+ // If couldn't create object, store static data back.
+ if(obj==NULL)
+ {
+ errorstream<<"ServerEnvironment::activateObjects(): "
+ <<"failed to create active object from static object "
+ <<"in block "<<PP(s_obj.pos/BS)
+ <<" type="<<(int)s_obj.type<<" data:"<<std::endl;
+ print_hexdump(verbosestream, s_obj.data);
+
+ new_stored.push_back(s_obj);
+ continue;
+ }
+ verbosestream<<"ServerEnvironment::activateObjects(): "
+ <<"activated static object pos="<<PP(s_obj.pos/BS)
+ <<" type="<<(int)s_obj.type<<std::endl;
+ // This will also add the object to the active static list
+ addActiveObjectRaw(obj, false, dtime_s);
+ }
+ // Clear stored list
+ block->m_static_objects.m_stored.clear();
+ // Add leftover failed stuff to stored list
+ for(core::list<StaticObject>::Iterator
+ i = new_stored.begin();
+ i != new_stored.end(); i++)
+ {
+ StaticObject &s_obj = *i;
+ block->m_static_objects.m_stored.push_back(s_obj);
+ }
+ /*
+ Note: Block hasn't really been modified here.
+ The objects have just been activated and moved from the stored
+ static list to the active static list.
+ As such, the block is essentially the same.
+ Thus, do not call block->raiseModified(MOD_STATE_WRITE_NEEDED).
+ Otherwise there would be a huge amount of unnecessary I/O.
+ */
+}
+
+/*
+ Convert objects that are not standing inside active blocks to static.
+
+ If m_known_by_count != 0, active object is not deleted, but static
+ data is still updated.
+
+ If force_delete is set, active object is deleted nevertheless. It
+ shall only be set so in the destructor of the environment.
+*/
+void ServerEnvironment::deactivateFarObjects(bool force_delete)
+{
+ core::list<u16> objects_to_remove;
+ for(core::map<u16, ServerActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ ServerActiveObject* obj = i.getNode()->getValue();
+ assert(obj);
+
+ // Do not deactivate if static data creation not allowed
+ if(!force_delete && !obj->isStaticAllowed())
+ continue;
+
+ // If pending deactivation, let removeRemovedObjects() do it
+ if(!force_delete && obj->m_pending_deactivation)
+ continue;
+
+ u16 id = i.getNode()->getKey();
+ v3f objectpos = obj->getBasePosition();
+
+ // The block in which the object resides in
+ v3s16 blockpos_o = getNodeBlockPos(floatToInt(objectpos, BS));
+
+ // If block is active, don't remove
+ if(!force_delete && m_active_blocks.contains(blockpos_o))
+ continue;
+
+ verbosestream<<"ServerEnvironment::deactivateFarObjects(): "
+ <<"deactivating object id="<<id<<" on inactive block "
+ <<PP(blockpos_o)<<std::endl;
+
+ // If known by some client, don't immediately delete.
+ bool pending_delete = (obj->m_known_by_count > 0 && !force_delete);
+
+ /*
+ Update the static data
+ */
+
+ if(obj->isStaticAllowed())
+ {
+ // Create new static object
+ std::string staticdata_new = obj->getStaticData();
+ StaticObject s_obj(obj->getType(), objectpos, staticdata_new);
+
+ bool stays_in_same_block = false;
+ bool data_changed = true;
+
+ if(obj->m_static_exists){
+ if(obj->m_static_block == blockpos_o)
+ stays_in_same_block = true;
+
+ MapBlock *block = m_map->emergeBlock(obj->m_static_block, false);
+
+ core::map<u16, StaticObject>::Node *n =
+ block->m_static_objects.m_active.find(id);
+ if(n){
+ StaticObject static_old = n->getValue();
+
+ float save_movem = obj->getMinimumSavedMovement();
+
+ if(static_old.data == staticdata_new &&
+ (static_old.pos - objectpos).getLength() < save_movem)
+ data_changed = false;
+ } else {
+ errorstream<<"ServerEnvironment::deactivateFarObjects(): "
+ <<"id="<<id<<" m_static_exists=true but "
+ <<"static data doesn't actually exist in "
+ <<PP(obj->m_static_block)<<std::endl;
+ }
+ }
+
+ bool shall_be_written = (!stays_in_same_block || data_changed);
+
+ // Delete old static object
+ if(obj->m_static_exists)
+ {
+ MapBlock *block = m_map->emergeBlock(obj->m_static_block, false);
+ if(block)
+ {
+ block->m_static_objects.remove(id);
+ obj->m_static_exists = false;
+ // Only mark block as modified if data changed considerably
+ if(shall_be_written)
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "deactivateFarObjects: Static data "
+ "changed considerably");
+ }
+ }
+
+ // Add to the block where the object is located in
+ v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
+ // Get or generate the block
+ MapBlock *block = NULL;
+ try{
+ block = m_map->emergeBlock(blockpos);
+ } catch(InvalidPositionException &e){
+ // Handled via NULL pointer
+ }
+
+ if(block)
+ {
+ if(block->m_static_objects.m_stored.size() >= 49){
+ errorstream<<"ServerEnv: Trying to store id="<<obj->getId()
+ <<" statically but block "<<PP(blockpos)
+ <<" already contains "
+ <<block->m_static_objects.m_stored.size()
+ <<" (over 49) objects."
+ <<" Forcing delete."<<std::endl;
+ force_delete = true;
+ } else {
+ u16 new_id = pending_delete ? id : 0;
+ // If static counterpart already exists, remove it first.
+ // This shouldn't happen, but happens rarely for some
+ // unknown reason. Unsuccessful attempts have been made to
+ // find said reason.
+ if(new_id && block->m_static_objects.m_active.find(new_id)){
+ infostream<<"ServerEnv: WARNING: Performing hack #83274"
+ <<std::endl;
+ block->m_static_objects.remove(new_id);
+ }
+ block->m_static_objects.insert(new_id, s_obj);
+
+ // Only mark block as modified if data changed considerably
+ if(shall_be_written)
+ block->raiseModified(MOD_STATE_WRITE_NEEDED,
+ "deactivateFarObjects: Static data "
+ "changed considerably");
+
+ obj->m_static_exists = true;
+ obj->m_static_block = block->getPos();
+ }
+ }
+ else{
+ if(!force_delete){
+ v3s16 p = floatToInt(objectpos, BS);
+ errorstream<<"ServerEnv: Could not find or generate "
+ <<"a block for storing id="<<obj->getId()
+ <<" statically (pos="<<PP(p)<<")"<<std::endl;
+ continue;
+ }
+ }
+ }
+
+ /*
+ If known by some client, set pending deactivation.
+ Otherwise delete it immediately.
+ */
+
+ if(pending_delete && !force_delete)
+ {
+ verbosestream<<"ServerEnvironment::deactivateFarObjects(): "
+ <<"object id="<<id<<" is known by clients"
+ <<"; not deleting yet"<<std::endl;
+
+ obj->m_pending_deactivation = true;
+ continue;
+ }
+
+ verbosestream<<"ServerEnvironment::deactivateFarObjects(): "
+ <<"object id="<<id<<" is not known by clients"
+ <<"; deleting"<<std::endl;
+
+ // Tell the object about removal
+ obj->removingFromEnvironment();
+ // Deregister in scripting api
+ scriptapi_rm_object_reference(m_lua, obj);
+
+ // Delete active object
+ if(obj->environmentDeletes())
+ delete obj;
+ // Id to be removed from m_active_objects
+ objects_to_remove.push_back(id);
+ }
+
+ // Remove references from m_active_objects
+ for(core::list<u16>::Iterator i = objects_to_remove.begin();
+ i != objects_to_remove.end(); i++)
+ {
+ m_active_objects.remove(*i);
+ }
+}
+
+
+#ifndef SERVER
+
+#include "clientsimpleobject.h"
+
+/*
+ ClientEnvironment
+*/
+
+ClientEnvironment::ClientEnvironment(ClientMap *map, scene::ISceneManager *smgr,
+ ITextureSource *texturesource, IGameDef *gamedef,
+ IrrlichtDevice *irr):
+ m_map(map),
+ m_smgr(smgr),
+ m_texturesource(texturesource),
+ m_gamedef(gamedef),
+ m_irr(irr)
+{
+}
+
+ClientEnvironment::~ClientEnvironment()
+{
+ // delete active objects
+ for(core::map<u16, ClientActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ delete i.getNode()->getValue();
+ }
+
+ for(core::list<ClientSimpleObject*>::Iterator
+ i = m_simple_objects.begin(); i != m_simple_objects.end(); i++)
+ {
+ delete *i;
+ }
+
+ // Drop/delete map
+ m_map->drop();
+}
+
+Map & ClientEnvironment::getMap()
+{
+ return *m_map;
+}
+
+ClientMap & ClientEnvironment::getClientMap()
+{
+ return *m_map;
+}
+
+void ClientEnvironment::addPlayer(Player *player)
+{
+ DSTACK(__FUNCTION_NAME);
+ /*
+ It is a failure if player is local and there already is a local
+ player
+ */
+ assert(!(player->isLocal() == true && getLocalPlayer() != NULL));
+
+ Environment::addPlayer(player);
+}
+
+LocalPlayer * ClientEnvironment::getLocalPlayer()
+{
+ for(core::list<Player*>::Iterator i = m_players.begin();
+ i != m_players.end(); i++)
+ {
+ Player *player = *i;
+ if(player->isLocal())
+ return (LocalPlayer*)player;
+ }
+ return NULL;
+}
+
+void ClientEnvironment::step(float dtime)
+{
+ DSTACK(__FUNCTION_NAME);
+
+ /* Step time of day */
+ stepTimeOfDay(dtime);
+
+ // Get some settings
+ bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
+ bool free_move = fly_allowed && g_settings->getBool("free_move");
+
+ // Get local player
+ LocalPlayer *lplayer = getLocalPlayer();
+ assert(lplayer);
+ // collision info queue
+ core::list<CollisionInfo> player_collisions;
+
+ /*
+ Get the speed the player is going
+ */
+ bool is_climbing = lplayer->is_climbing;
+
+ f32 player_speed = lplayer->getSpeed().getLength();
+
+ /*
+ Maximum position increment
+ */
+ //f32 position_max_increment = 0.05*BS;
+ f32 position_max_increment = 0.1*BS;
+
+ // Maximum time increment (for collision detection etc)
+ // time = distance / speed
+ f32 dtime_max_increment = 1;
+ if(player_speed > 0.001)
+ dtime_max_increment = position_max_increment / player_speed;
+
+ // Maximum time increment is 10ms or lower
+ if(dtime_max_increment > 0.01)
+ dtime_max_increment = 0.01;
+
+ // Don't allow overly huge dtime
+ if(dtime > 0.5)
+ dtime = 0.5;
+
+ f32 dtime_downcount = dtime;
+
+ /*
+ Stuff that has a maximum time increment
+ */
+
+ u32 loopcount = 0;
+ do
+ {
+ loopcount++;
+
+ f32 dtime_part;
+ if(dtime_downcount > dtime_max_increment)
+ {
+ dtime_part = dtime_max_increment;
+ dtime_downcount -= dtime_part;
+ }
+ else
+ {
+ dtime_part = dtime_downcount;
+ /*
+ Setting this to 0 (no -=dtime_part) disables an infinite loop
+ when dtime_part is so small that dtime_downcount -= dtime_part
+ does nothing
+ */
+ dtime_downcount = 0;
+ }
+
+ /*
+ Handle local player
+ */
+
+ {
+ v3f lplayerpos = lplayer->getPosition();
+
+ // Apply physics
+ if(free_move == false && is_climbing == false)
+ {
+ // Gravity
+ v3f speed = lplayer->getSpeed();
+ if(lplayer->swimming_up == false)
+ speed.Y -= 9.81 * BS * dtime_part * 2;
+
+ // Water resistance
+ if(lplayer->in_water_stable || lplayer->in_water)
+ {
+ f32 max_down = 2.0*BS;
+ if(speed.Y < -max_down) speed.Y = -max_down;
+
+ f32 max = 2.5*BS;
+ if(speed.getLength() > max)
+ {
+ speed = speed / speed.getLength() * max;
+ }
+ }
+
+ lplayer->setSpeed(speed);
+ }
+
+ /*
+ Move the lplayer.
+ This also does collision detection.
+ */
+ lplayer->move(dtime_part, *m_map, position_max_increment,
+ &player_collisions);
+ }
+ }
+ while(dtime_downcount > 0.001);
+
+ //std::cout<<"Looped "<<loopcount<<" times."<<std::endl;
+
+ for(core::list<CollisionInfo>::Iterator
+ i = player_collisions.begin();
+ i != player_collisions.end(); i++)
+ {
+ CollisionInfo &info = *i;
+ v3f speed_diff = info.new_speed - info.old_speed;;
+ // Handle only fall damage
+ // (because otherwise walking against something in fast_move kills you)
+ if(speed_diff.Y < 0 || info.old_speed.Y >= 0)
+ continue;
+ // Get rid of other components
+ speed_diff.X = 0;
+ speed_diff.Z = 0;
+ f32 pre_factor = 1; // 1 hp per node/s
+ f32 tolerance = BS*14; // 5 without damage
+ f32 post_factor = 1; // 1 hp per node/s
+ if(info.type == COLLISION_NODE)
+ {
+ const ContentFeatures &f = m_gamedef->ndef()->
+ get(m_map->getNodeNoEx(info.node_p));
+ // Determine fall damage multiplier
+ int addp = itemgroup_get(f.groups, "fall_damage_add_percent");
+ pre_factor = 1.0 + (float)addp/100.0;
+ }
+ float speed = pre_factor * speed_diff.getLength();
+ if(speed > tolerance)
+ {
+ f32 damage_f = (speed - tolerance)/BS * post_factor;
+ u16 damage = (u16)(damage_f+0.5);
+ if(damage != 0)
+ damageLocalPlayer(damage, true);
+ }
+ }
+
+ /*
+ A quick draft of lava damage
+ */
+ if(m_lava_hurt_interval.step(dtime, 1.0))
+ {
+ v3f pf = lplayer->getPosition();
+
+ // Feet, middle and head
+ v3s16 p1 = floatToInt(pf + v3f(0, BS*0.1, 0), BS);
+ MapNode n1 = m_map->getNodeNoEx(p1);
+ v3s16 p2 = floatToInt(pf + v3f(0, BS*0.8, 0), BS);
+ MapNode n2 = m_map->getNodeNoEx(p2);
+ v3s16 p3 = floatToInt(pf + v3f(0, BS*1.6, 0), BS);
+ MapNode n3 = m_map->getNodeNoEx(p2);
+
+ u32 damage_per_second = 0;
+ damage_per_second = MYMAX(damage_per_second,
+ m_gamedef->ndef()->get(n1).damage_per_second);
+ damage_per_second = MYMAX(damage_per_second,
+ m_gamedef->ndef()->get(n2).damage_per_second);
+ damage_per_second = MYMAX(damage_per_second,
+ m_gamedef->ndef()->get(n3).damage_per_second);
+
+ if(damage_per_second != 0)
+ {
+ damageLocalPlayer(damage_per_second, true);
+ }
+ }
+
+ /*
+ Stuff that can be done in an arbitarily large dtime
+ */
+ for(core::list<Player*>::Iterator i = m_players.begin();
+ i != m_players.end(); i++)
+ {
+ Player *player = *i;
+ v3f playerpos = player->getPosition();
+
+ /*
+ Handle non-local players
+ */
+ if(player->isLocal() == false)
+ {
+ // Move
+ player->move(dtime, *m_map, 100*BS);
+
+ }
+
+ // Update lighting on all players on client
+ u8 light = LIGHT_MAX;
+ try{
+ // Get node at head
+ v3s16 p = player->getLightPosition();
+ MapNode n = m_map->getNode(p);
+ light = n.getLightBlend(getDayNightRatio(), m_gamedef->ndef());
+ }
+ catch(InvalidPositionException &e){
+ light = blend_light(getDayNightRatio(), LIGHT_SUN, 0);
+ }
+ player->light = light;
+ }
+
+ /*
+ Step active objects and update lighting of them
+ */
+
+ bool update_lighting = m_active_object_light_update_interval.step(dtime, 0.21);
+ for(core::map<u16, ClientActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ ClientActiveObject* obj = i.getNode()->getValue();
+ // Step object
+ obj->step(dtime, this);
+
+ if(update_lighting)
+ {
+ // Update lighting
+ u8 light = 0;
+ try{
+ // Get node at head
+ v3s16 p = obj->getLightPosition();
+ MapNode n = m_map->getNode(p);
+ light = n.getLightBlend(getDayNightRatio(), m_gamedef->ndef());
+ }
+ catch(InvalidPositionException &e){
+ light = blend_light(getDayNightRatio(), LIGHT_SUN, 0);
+ }
+ obj->updateLight(light);
+ }
+ }
+
+ /*
+ Step and handle simple objects
+ */
+ for(core::list<ClientSimpleObject*>::Iterator
+ i = m_simple_objects.begin(); i != m_simple_objects.end();)
+ {
+ ClientSimpleObject *simple = *i;
+ core::list<ClientSimpleObject*>::Iterator cur = i;
+ i++;
+ simple->step(dtime);
+ if(simple->m_to_be_removed){
+ delete simple;
+ m_simple_objects.erase(cur);
+ }
+ }
+}
+
+void ClientEnvironment::addSimpleObject(ClientSimpleObject *simple)
+{
+ m_simple_objects.push_back(simple);
+}
+
+ClientActiveObject* ClientEnvironment::getActiveObject(u16 id)
+{
+ core::map<u16, ClientActiveObject*>::Node *n;
+ n = m_active_objects.find(id);
+ if(n == NULL)
+ return NULL;
+ return n->getValue();
+}
+
+bool isFreeClientActiveObjectId(u16 id,
+ core::map<u16, ClientActiveObject*> &objects)
+{
+ if(id == 0)
+ return false;
+
+ for(core::map<u16, ClientActiveObject*>::Iterator
+ i = objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ if(i.getNode()->getKey() == id)
+ return false;
+ }
+ return true;
+}
+
+u16 getFreeClientActiveObjectId(
+ core::map<u16, ClientActiveObject*> &objects)
+{
+ u16 new_id = 1;
+ for(;;)
+ {
+ if(isFreeClientActiveObjectId(new_id, objects))
+ return new_id;
+
+ if(new_id == 65535)
+ return 0;
+
+ new_id++;
+ }
+}
+
+u16 ClientEnvironment::addActiveObject(ClientActiveObject *object)
+{
+ assert(object);
+ if(object->getId() == 0)
+ {
+ u16 new_id = getFreeClientActiveObjectId(m_active_objects);
+ if(new_id == 0)
+ {
+ infostream<<"ClientEnvironment::addActiveObject(): "
+ <<"no free ids available"<<std::endl;
+ delete object;
+ return 0;
+ }
+ object->setId(new_id);
+ }
+ if(isFreeClientActiveObjectId(object->getId(), m_active_objects) == false)
+ {
+ infostream<<"ClientEnvironment::addActiveObject(): "
+ <<"id is not free ("<<object->getId()<<")"<<std::endl;
+ delete object;
+ return 0;
+ }
+ infostream<<"ClientEnvironment::addActiveObject(): "
+ <<"added (id="<<object->getId()<<")"<<std::endl;
+ m_active_objects.insert(object->getId(), object);
+ object->addToScene(m_smgr, m_texturesource, m_irr);
+ { // Update lighting immediately
+ u8 light = 0;
+ try{
+ // Get node at head
+ v3s16 p = object->getLightPosition();
+ MapNode n = m_map->getNode(p);
+ light = n.getLightBlend(getDayNightRatio(), m_gamedef->ndef());
+ }
+ catch(InvalidPositionException &e){
+ light = blend_light(getDayNightRatio(), LIGHT_SUN, 0);
+ }
+ object->updateLight(light);
+ }
+ return object->getId();
+}
+
+void ClientEnvironment::addActiveObject(u16 id, u8 type,
+ const std::string &init_data)
+{
+ ClientActiveObject* obj =
+ ClientActiveObject::create(type, m_gamedef, this);
+ if(obj == NULL)
+ {
+ infostream<<"ClientEnvironment::addActiveObject(): "
+ <<"id="<<id<<" type="<<type<<": Couldn't create object"
+ <<std::endl;
+ return;
+ }
+
+ obj->setId(id);
+
+ try
+ {
+ obj->initialize(init_data);
+ }
+ catch(SerializationError &e)
+ {
+ errorstream<<"ClientEnvironment::addActiveObject():"
+ <<" id="<<id<<" type="<<type
+ <<": SerializationError in initialize(): "
+ <<e.what()
+ <<": init_data="<<serializeJsonString(init_data)
+ <<std::endl;
+ }
+
+ addActiveObject(obj);
+}
+
+void ClientEnvironment::removeActiveObject(u16 id)
+{
+ verbosestream<<"ClientEnvironment::removeActiveObject(): "
+ <<"id="<<id<<std::endl;
+ ClientActiveObject* obj = getActiveObject(id);
+ if(obj == NULL)
+ {
+ infostream<<"ClientEnvironment::removeActiveObject(): "
+ <<"id="<<id<<" not found"<<std::endl;
+ return;
+ }
+ obj->removeFromScene(true);
+ delete obj;
+ m_active_objects.remove(id);
+}
+
+void ClientEnvironment::processActiveObjectMessage(u16 id,
+ const std::string &data)
+{
+ ClientActiveObject* obj = getActiveObject(id);
+ if(obj == NULL)
+ {
+ infostream<<"ClientEnvironment::processActiveObjectMessage():"
+ <<" got message for id="<<id<<", which doesn't exist."
+ <<std::endl;
+ return;
+ }
+ try
+ {
+ obj->processMessage(data);
+ }
+ catch(SerializationError &e)
+ {
+ errorstream<<"ClientEnvironment::processActiveObjectMessage():"
+ <<" id="<<id<<" type="<<obj->getType()
+ <<" SerializationError in processMessage(),"
+ <<" message="<<serializeJsonString(data)
+ <<std::endl;
+ }
+}
+
+/*
+ Callbacks for activeobjects
+*/
+
+void ClientEnvironment::damageLocalPlayer(u8 damage, bool handle_hp)
+{
+ LocalPlayer *lplayer = getLocalPlayer();
+ assert(lplayer);
+
+ if(handle_hp){
+ if(lplayer->hp > damage)
+ lplayer->hp -= damage;
+ else
+ lplayer->hp = 0;
+ }
+
+ ClientEnvEvent event;
+ event.type = CEE_PLAYER_DAMAGE;
+ event.player_damage.amount = damage;
+ event.player_damage.send_to_server = handle_hp;
+ m_client_event_queue.push_back(event);
+}
+
+/*
+ Client likes to call these
+*/
+
+void ClientEnvironment::getActiveObjects(v3f origin, f32 max_d,
+ core::array<DistanceSortedActiveObject> &dest)
+{
+ for(core::map<u16, ClientActiveObject*>::Iterator
+ i = m_active_objects.getIterator();
+ i.atEnd()==false; i++)
+ {
+ ClientActiveObject* obj = i.getNode()->getValue();
+
+ f32 d = (obj->getPosition() - origin).getLength();
+
+ if(d > max_d)
+ continue;
+
+ DistanceSortedActiveObject dso(obj, d);
+
+ dest.push_back(dso);
+ }
+}
+
+ClientEnvEvent ClientEnvironment::getClientEvent()
+{
+ if(m_client_event_queue.size() == 0)
+ {
+ ClientEnvEvent event;
+ event.type = CEE_NONE;
+ return event;
+ }
+ return m_client_event_queue.pop_front();
+}
+
+#endif // #ifndef SERVER
+
+