]> git.lizzy.rs Git - minetest.git/blobdiff - src/server.cpp
Allow the LUA API to set animations to meshes as well as the animation speed. Also...
[minetest.git] / src / server.cpp
index 69f655e6acd7b244a2bc4a7cdd62dca0f8d96281..930938ecb68318b8849e34069b3f764276cd348f 100644 (file)
@@ -3,22 +3,21 @@ Minetest-c55
 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 "server.h"
-#include "utility.h"
 #include <iostream>
 #include <queue>
 #include "clientserver.h"
@@ -28,10 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "constants.h"
 #include "voxel.h"
 #include "config.h"
-#include "servercommand.h"
 #include "filesys.h"
-#include "content_mapnode.h"
-#include "content_nodemeta.h"
 #include "mapblock.h"
 #include "serverobject.h"
 #include "settings.h"
@@ -43,11 +39,21 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "itemdef.h"
 #include "craftdef.h"
 #include "mapgen.h"
+#include "content_mapnode.h"
+#include "content_nodemeta.h"
 #include "content_abm.h"
+#include "content_sao.h"
 #include "mods.h"
 #include "sha1.h"
 #include "base64.h"
 #include "tool.h"
+#include "sound.h" // dummySoundManager
+#include "event_manager.h"
+#include "hex.h"
+#include "util/string.h"
+#include "util/pointedthing.h"
+#include "util/mathconstants.h"
+#include "rollback.h"
 
 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
 
@@ -78,6 +84,31 @@ class MapEditEventIgnorer
        bool *m_flag;
 };
 
+class MapEditEventAreaIgnorer
+{
+public:
+       MapEditEventAreaIgnorer(VoxelArea *ignorevariable, const VoxelArea &a):
+               m_ignorevariable(ignorevariable)
+       {
+               if(m_ignorevariable->getVolume() == 0)
+                       *m_ignorevariable = a;
+               else
+                       m_ignorevariable = NULL;
+       }
+
+       ~MapEditEventAreaIgnorer()
+       {
+               if(m_ignorevariable)
+               {
+                       assert(m_ignorevariable->getVolume() != 0);
+                       *m_ignorevariable = VoxelArea();
+               }
+       }
+       
+private:
+       VoxelArea *m_ignorevariable;
+};
+
 void * ServerThread::Thread()
 {
        ThreadStarted();
@@ -108,6 +139,14 @@ void * ServerThread::Thread()
                {
                        infostream<<"Server: PeerNotFoundException"<<std::endl;
                }
+               catch(con::ConnectionBindFailed &e)
+               {
+                       m_server->setAsyncFatalError(e.what());
+               }
+               catch(LuaError &e)
+               {
+                       m_server->setAsyncFatalError(e.what());
+               }
        }
        
        END_DEBUG_EXCEPTION_HANDLER(errorstream)
@@ -126,6 +165,8 @@ void * EmergeThread::Thread()
        BEGIN_DEBUG_EXCEPTION_HANDLER
 
        bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
+
+       v3s16 last_tried_pos(-32768,-32768,-32768); // For error output
        
        /*
                Get block info from queue, emerge them and send them
@@ -134,7 +175,7 @@ void * EmergeThread::Thread()
                After queue is empty, exit.
        */
        while(getRun())
-       {
+       try{
                QueuedBlockEmerge *qptr = m_server->m_emerge_queue.pop();
                if(qptr == NULL)
                        break;
@@ -143,6 +184,8 @@ void * EmergeThread::Thread()
 
                v3s16 &p = q->pos;
                v2s16 p2d(p.X,p.Z);
+               
+               last_tried_pos = p;
 
                /*
                        Do not generate over-limit
@@ -271,23 +314,32 @@ void * EmergeThread::Thread()
                                /*
                                        Do some post-generate stuff
                                */
-                               
-                               v3s16 minp = block->getPos()*MAP_BLOCKSIZE;
-                               v3s16 maxp = minp + v3s16(1,1,1)*(MAP_BLOCKSIZE-1);
-                               scriptapi_environment_on_generated(m_server->m_lua,
-                                               minp, maxp);
-                               
-                               if(enable_mapgen_debug_info)
-                                       infostream<<"EmergeThread: ended up with: "
-                                                       <<analyze_block(block)<<std::endl;
 
+                               v3s16 minp = data.blockpos_min*MAP_BLOCKSIZE;
+                               v3s16 maxp = data.blockpos_max*MAP_BLOCKSIZE +
+                                               v3s16(1,1,1)*(MAP_BLOCKSIZE-1);
+                               
                                /*
                                        Ignore map edit events, they will not need to be
                                        sent to anybody because the block hasn't been sent
                                        to anybody
                                */
-                               MapEditEventIgnorer ign(&m_server->m_ignore_map_edit_events);
+                               //MapEditEventIgnorer ign(&m_server->m_ignore_map_edit_events);
+                               MapEditEventAreaIgnorer ign(
+                                               &m_server->m_ignore_map_edit_events_area,
+                                               VoxelArea(minp, maxp));
+                               {
+                                       TimeTaker timer("on_generated");
+                                       scriptapi_environment_on_generated(m_server->m_lua,
+                                                       minp, maxp, mapgen::get_blockseed(data.seed, minp));
+                                       /*int t = timer.stop(true);
+                                       dstream<<"on_generated took "<<t<<"ms"<<std::endl;*/
+                               }
                                
+                               if(enable_mapgen_debug_info)
+                                       infostream<<"EmergeThread: ended up with: "
+                                                       <<analyze_block(block)<<std::endl;
+
                                // Activate objects and stuff
                                m_server->m_env->activateBlock(block, 0);
                        }while(false);
@@ -327,7 +379,26 @@ void * EmergeThread::Thread()
                                client->SetBlocksNotSent(modified_blocks);
                        }
                }
-               
+       }
+       catch(VersionMismatchException &e)
+       {
+               std::ostringstream err;
+               err<<"World data version mismatch in MapBlock "<<PP(last_tried_pos)<<std::endl;
+               err<<"----"<<std::endl;
+               err<<"\""<<e.what()<<"\""<<std::endl;
+               err<<"See debug.txt."<<std::endl;
+               err<<"World probably saved by a newer version of Minetest."<<std::endl;
+               m_server->setAsyncFatalError(err.str());
+       }
+       catch(SerializationError &e)
+       {
+               std::ostringstream err;
+               err<<"Invalid data in MapBlock "<<PP(last_tried_pos)<<std::endl;
+               err<<"----"<<std::endl;
+               err<<"\""<<e.what()<<"\""<<std::endl;
+               err<<"See debug.txt."<<std::endl;
+               err<<"You can ignore this using [ignore_world_load_errors = true]."<<std::endl;
+               m_server->setAsyncFatalError(err.str());
        }
 
        END_DEBUG_EXCEPTION_HANDLER(errorstream)
@@ -337,6 +408,27 @@ void * EmergeThread::Thread()
        return NULL;
 }
 
+v3f ServerSoundParams::getPos(ServerEnvironment *env, bool *pos_exists) const
+{
+       if(pos_exists) *pos_exists = false;
+       switch(type){
+       case SSP_LOCAL:
+               return v3f(0,0,0);
+       case SSP_POSITIONAL:
+               if(pos_exists) *pos_exists = true;
+               return pos;
+       case SSP_OBJECT: {
+               if(object == 0)
+                       return v3f(0,0,0);
+               ServerActiveObject *sao = env->getActiveObject(object);
+               if(!sao)
+                       return v3f(0,0,0);
+               if(pos_exists) *pos_exists = true;
+               return sao->getBasePosition(); }
+       }
+       return v3f(0,0,0);
+}
+
 void RemoteClient::GetNextBlocks(Server *server, float dtime,
                core::array<PrioritySortedBlockTransfer> &dest)
 {
@@ -350,9 +442,12 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
        m_nearest_unsent_reset_timer += dtime;
        
        if(m_nothing_to_send_pause_timer >= 0)
-       {
                return;
-       }
+
+       Player *player = server->m_env->getPlayer(peer_id);
+       // This can happen sometimes; clients and players are not in perfect sync.
+       if(player == NULL)
+               return;
 
        // Won't send anything if already sending
        if(m_blocks_sending.size() >= g_settings->getU16
@@ -364,10 +459,6 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
 
        //TimeTaker timer("RemoteClient::GetNextBlocks");
        
-       Player *player = server->m_env->getPlayer(peer_id);
-
-       assert(player != NULL);
-
        v3f playerpos = player->getPosition();
        v3f playerspeed = player->getSpeed();
        v3f playerspeeddir(0,0,0);
@@ -585,7 +676,7 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
                                FOV setting. The default of 72 degrees is fine.
                        */
 
-                       float camera_fov = (72.0*PI/180) * 4./3.;
+                       float camera_fov = (72.0*M_PI/180) * 4./3.;
                        if(isBlockInSight(p, camera_pos, camera_dir, camera_fov, 10000*BS) == false)
                        {
                                continue;
@@ -650,7 +741,7 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
                                */
                                if(d >= 4)
                                {
-                                       if(block->dayNightDiffed() == false)
+                                       if(block->getDayNightDiff() == false)
                                                continue;
                                }
 #endif
@@ -676,10 +767,10 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
                                //if(server->m_emerge_queue.peerItemCount(peer_id) < 1)
                                // Allow two blocks in queue per client
                                //if(server->m_emerge_queue.peerItemCount(peer_id) < 2)
-                               u32 max_emerge = 25;
+                               u32 max_emerge = 5;
                                // Make it more responsive when needing to generate stuff
                                if(surely_not_found_on_disk)
-                                       max_emerge = 5;
+                                       max_emerge = 1;
                                if(server->m_emerge_queue.peerItemCount(peer_id) < max_emerge)
                                {
                                        //infostream<<"Adding block to emerge queue"<<std::endl;
@@ -751,7 +842,7 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
 
        /*timer_result = timer.stop(true);
        if(timer_result != 0)
-               infostream<<"GetNextBlocks duration: "<<timer_result<<" (!=0)"<<std::endl;*/
+               infostream<<"GetNextBlocks timeout: "<<timer_result<<" (!=0)"<<std::endl;*/
 }
 
 void RemoteClient::GotBlock(v3s16 p)
@@ -824,54 +915,40 @@ void PlayerInfo::PrintLine(std::ostream *s)
        (*s)<<std::endl;
 }
 
-u32 PIChecksum(core::list<PlayerInfo> &l)
-{
-       core::list<PlayerInfo>::Iterator i;
-       u32 checksum = 1;
-       u32 a = 10;
-       for(i=l.begin(); i!=l.end(); i++)
-       {
-               checksum += a * (i->id+1);
-               checksum ^= 0x435aafcd;
-               a *= 10;
-       }
-       return checksum;
-}
-
 /*
        Server
 */
 
 Server::Server(
-               std::string path_world,
-               std::string path_config,
-               std::string gamename
+               const std::string &path_world,
+               const std::string &path_config,
+               const SubgameSpec &gamespec,
+               bool simple_singleplayer_mode
        ):
-       m_gamename(gamename),
        m_path_world(path_world),
        m_path_config(path_config),
+       m_gamespec(gamespec),
+       m_simple_singleplayer_mode(simple_singleplayer_mode),
+       m_async_fatal_error(""),
        m_env(NULL),
        m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
-       m_authmanager(path_world+DIR_DELIM+"auth.txt"),
        m_banmanager(path_world+DIR_DELIM+"ipban.txt"),
+       m_rollback(NULL),
+       m_rollback_sink_enabled(true),
+       m_enable_rollback_recording(false),
        m_lua(NULL),
        m_itemdef(createItemDefManager()),
        m_nodedef(createNodeDefManager()),
        m_craftdef(createCraftDefManager()),
+       m_event(new EventManager()),
        m_thread(this),
        m_emergethread(this),
-       m_time_counter(0),
        m_time_of_day_send_timer(0),
        m_uptime(0),
        m_shutdown_requested(false),
        m_ignore_map_edit_events(false),
        m_ignore_map_edit_events_peer_id(0)
 {
-       infostream<<"Server created."<<std::endl;
-       infostream<<"- path_world  = "<<path_world<<std::endl;
-       infostream<<"- path_config = "<<path_config<<std::endl;
-       infostream<<"- gamename    = "<<gamename<<std::endl;
-
        m_liquid_transform_timer = 0.0;
        m_print_info_timer = 0.0;
        m_objectdata_timer = 0.0;
@@ -883,58 +960,83 @@ Server::Server(
        m_step_dtime_mutex.Init();
        m_step_dtime = 0.0;
 
-       // Figure out some paths
-       m_path_share = porting::path_share + DIR_DELIM + "server";
-       m_path_game = m_path_share + DIR_DELIM + "games" + DIR_DELIM + m_gamename;
+       if(path_world == "")
+               throw ServerError("Supplied empty world path");
+       
+       if(!gamespec.isValid())
+               throw ServerError("Supplied invalid gamespec");
+       
+       infostream<<"Server created for gameid \""<<m_gamespec.id<<"\"";
+       if(m_simple_singleplayer_mode)
+               infostream<<" in simple singleplayer mode"<<std::endl;
+       else
+               infostream<<std::endl;
+       infostream<<"- world:  "<<m_path_world<<std::endl;
+       infostream<<"- config: "<<m_path_config<<std::endl;
+       infostream<<"- game:   "<<m_gamespec.path<<std::endl;
 
-       // Path to builtin.lua
-       std::string builtinpath = m_path_share + DIR_DELIM + "builtin.lua";
+       // Create rollback manager
+       std::string rollback_path = m_path_world+DIR_DELIM+"rollback.txt";
+       m_rollback = createRollbackManager(rollback_path, this);
 
-       // Add default global mod search path
-       m_modspaths.push_front(m_path_game + DIR_DELIM "mods");
        // Add world mod search path
        m_modspaths.push_front(m_path_world + DIR_DELIM + "worldmods");
        // Add addon mod search path
-       for(std::set<std::string>::const_iterator i = m_path_addons.begin();
-                       i != m_path_addons.end(); i++){
-               m_modspaths.push_front((*i) + DIR_DELIM + "mods");
-       }
-       
+       for(std::set<std::string>::const_iterator i = m_gamespec.mods_paths.begin();
+                       i != m_gamespec.mods_paths.end(); i++)
+               m_modspaths.push_front((*i));
+
        // Print out mod search paths
-       infostream<<"- mod search paths:"<<std::endl;
        for(core::list<std::string>::Iterator i = m_modspaths.begin();
                        i != m_modspaths.end(); i++){
                std::string modspath = *i;
-               infostream<<"    "<<modspath<<std::endl;
+               infostream<<"- mods:   "<<modspath<<std::endl;
        }
        
+       // Path to builtin.lua
+       std::string builtinpath = getBuiltinLuaPath() + DIR_DELIM + "builtin.lua";
+
+       // Create world if it doesn't exist
+       if(!initializeWorld(m_path_world, m_gamespec.id))
+               throw ServerError("Failed to initialize world");
+
        // Lock environment
        JMutexAutoLock envlock(m_env_mutex);
        JMutexAutoLock conlock(m_con_mutex);
 
        // Initialize scripting
        
-       infostream<<"Server: Initializing scripting"<<std::endl;
+       infostream<<"Server: Initializing Lua"<<std::endl;
        m_lua = script_init();
        assert(m_lua);
        // Export API
        scriptapi_export(m_lua, this);
        // Load and run builtin.lua
-       infostream<<"Server: Loading builtin Lua stuff from \""<<builtinpath
-                       <<"\""<<std::endl;
+       infostream<<"Server: Loading builtin.lua [\""
+                       <<builtinpath<<"\"]"<<std::endl;
        bool success = scriptapi_loadmod(m_lua, builtinpath, "__builtin");
        if(!success){
                errorstream<<"Server: Failed to load and run "
                                <<builtinpath<<std::endl;
                throw ModError("Failed to load and run "+builtinpath);
        }
-       // Load and run "mod" scripts
+       // Find mods in mod search paths
        m_mods = getMods(m_modspaths);
+       // Print 'em
+       infostream<<"Server: Loading mods: ";
+       for(core::list<ModSpec>::Iterator i = m_mods.begin();
+                       i != m_mods.end(); i++){
+               const ModSpec &mod = *i;
+               infostream<<mod.name<<" ";
+       }
+       infostream<<std::endl;
+       // Load and run "mod" scripts
        for(core::list<ModSpec>::Iterator i = m_mods.begin();
                        i != m_mods.end(); i++){
                const ModSpec &mod = *i;
-               infostream<<"Server: Loading mod \""<<mod.name<<"\""<<std::endl;
                std::string scriptpath = mod.path + DIR_DELIM + "init.lua";
+               infostream<<"  ["<<padStringRight(mod.name, 12)<<"] [\""
+                               <<scriptpath<<"\"]"<<std::endl;
                bool success = scriptapi_loadmod(m_lua, scriptpath, mod.name);
                if(!success){
                        errorstream<<"Server: Failed to load and run "
@@ -944,7 +1046,7 @@ Server::Server(
        }
        
        // Read Textures and calculate sha1 sums
-       PrepareTextures();
+       fillMediaCache();
 
        // Apply item aliases in the node definition manager
        m_nodedef->updateAliases(m_itemdef);
@@ -953,7 +1055,7 @@ Server::Server(
        
        m_env = new ServerEnvironment(new ServerMap(path_world, this), m_lua,
                        this, this);
-
+       
        // Give environment reference to scripting api
        scriptapi_add_environment(m_lua, m_env);
        
@@ -979,7 +1081,7 @@ Server::Server(
 
 Server::~Server()
 {
-       infostream<<"Server::~Server()"<<std::endl;
+       infostream<<"Server destructing"<<std::endl;
 
        /*
                Send shutdown message
@@ -1053,10 +1155,11 @@ Server::~Server()
                        delete i.getNode()->getValue();
                }
        }
-
-       // Delete Environment
+       
+       // Delete things in the reverse order of creation
        delete m_env;
-
+       delete m_rollback;
+       delete m_event;
        delete m_itemdef;
        delete m_nodedef;
        delete m_craftdef;
@@ -1064,11 +1167,22 @@ Server::~Server()
        // Deinitialize scripting
        infostream<<"Server: Deinitializing scripting"<<std::endl;
        script_deinit(m_lua);
+
+       // Delete detached inventories
+       {
+               for(std::map<std::string, Inventory*>::iterator
+                               i = m_detached_inventories.begin();
+                               i != m_detached_inventories.end(); i++){
+                       delete i->second;
+               }
+       }
 }
 
 void Server::start(unsigned short port)
 {
        DSTACK(__FUNCTION_NAME);
+       infostream<<"Starting server on port "<<port<<"..."<<std::endl;
+
        // Stop thread if already running
        m_thread.stop();
        
@@ -1080,7 +1194,17 @@ void Server::start(unsigned short port)
        m_thread.setRun(true);
        m_thread.Start();
        
-       infostream<<"Server started on port "<<port<<"."<<std::endl;
+       // ASCII art for the win!
+       actionstream
+       <<"        .__               __                   __   "<<std::endl
+       <<"  _____ |__| ____   _____/  |_  ____   _______/  |_ "<<std::endl
+       <<" /     \\|  |/    \\_/ __ \\   __\\/ __ \\ /  ___/\\   __\\"<<std::endl
+       <<"|  Y Y  \\  |   |  \\  ___/|  | \\  ___/ \\___ \\  |  |  "<<std::endl
+       <<"|__|_|  /__|___|  /\\___  >__|  \\___  >____  > |__|  "<<std::endl
+       <<"      \\/        \\/     \\/          \\/     \\/        "<<std::endl;
+       actionstream<<"World at ["<<m_path_world<<"]"<<std::endl;
+       actionstream<<"Server for gameid=\""<<m_gamespec.id
+                       <<"\" listening on port "<<port<<"."<<std::endl;
 }
 
 void Server::stop()
@@ -1108,6 +1232,11 @@ void Server::step(float dtime)
                JMutexAutoLock lock(m_step_dtime_mutex);
                m_step_dtime += dtime;
        }
+       // Throw if fatal error occurred in thread
+       std::string async_err = m_async_fatal_error.get();
+       if(async_err != ""){
+               throw ServerError(async_err);
+       }
 }
 
 void Server::AsyncRunStep()
@@ -1161,19 +1290,12 @@ void Server::AsyncRunStep()
        }
 
        /*
-               Update m_time_of_day and overall game time
+               Update time of day and overall game time
        */
        {
                JMutexAutoLock envlock(m_env_mutex);
 
-               m_time_counter += dtime;
-               f32 speed = g_settings->getFloat("time_speed") * 24000./(24.*3600);
-               u32 units = (u32)(m_time_counter*speed);
-               m_time_counter -= (f32)units / speed;
-               
-               m_env->setTimeOfDay((m_env->getTimeOfDay() + units) % 24000);
-               
-               //infostream<<"Server: m_time_of_day = "<<m_time_of_day.get()<<std::endl;
+               m_env->setTimeOfDaySpeed(g_settings->getFloat("time_speed"));
 
                /*
                        Send to clients at constant intervals
@@ -1192,10 +1314,8 @@ void Server::AsyncRunStep()
                                i.atEnd() == false; i++)
                        {
                                RemoteClient *client = i.getNode()->getValue();
-                               //Player *player = m_env->getPlayer(client->peer_id);
-                               
                                SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
-                                               m_env->getTimeOfDay());
+                                               m_env->getTimeOfDay(), g_settings->getFloat("time_speed"));
                                // Send as reliable
                                m_con.Send(client->peer_id, 0, data, true);
                        }
@@ -1233,78 +1353,34 @@ void Server::AsyncRunStep()
 
                ScopeProfiler sp(g_profiler, "Server: handle players");
 
-               //float player_max_speed = BS * 4.0; // Normal speed
-               float player_max_speed = BS * 20; // Fast speed
-               float player_max_speed_up = BS * 20;
-               
-               player_max_speed *= 2.5; // Tolerance
-               player_max_speed_up *= 2.5;
-
                for(core::map<u16, RemoteClient*>::Iterator
                        i = m_clients.getIterator();
                        i.atEnd() == false; i++)
                {
                        RemoteClient *client = i.getNode()->getValue();
-                       ServerRemotePlayer *player =
-                                       static_cast<ServerRemotePlayer*>
-                                       (m_env->getPlayer(client->peer_id));
-                       if(player==NULL)
+                       PlayerSAO *playersao = getPlayerSAO(client->peer_id);
+                       if(playersao == NULL)
                                continue;
-                       
-                       /*
-                               Check player movements
-
-                               NOTE: Actually the server should handle player physics like the
-                               client does and compare player's position to what is calculated
-                               on our side. This is required when eg. players fly due to an
-                               explosion.
-                       */
-                       player->m_last_good_position_age += dtime;
-                       if(player->m_last_good_position_age >= 1.0){
-                               float age = player->m_last_good_position_age;
-                               v3f diff = (player->getPosition() - player->m_last_good_position);
-                               float d_vert = diff.Y;
-                               diff.Y = 0;
-                               float d_horiz = diff.getLength();
-                               /*infostream<<player->getName()<<"'s horizontal speed is "
-                                               <<(d_horiz/age)<<std::endl;*/
-                               if(d_horiz <= age * player_max_speed &&
-                                               (d_vert < 0 || d_vert < age * player_max_speed_up)){
-                                       player->m_last_good_position = player->getPosition();
-                               } else {
-                                       actionstream<<"Player "<<player->getName()
-                                                       <<" moved too fast; resetting position"
-                                                       <<std::endl;
-                                       player->setPosition(player->m_last_good_position);
-                                       SendMovePlayer(player);
-                               }
-                               player->m_last_good_position_age = 0;
-                       }
 
                        /*
                                Handle player HPs (die if hp=0)
                        */
-                       if(player->hp == 0 && player->m_hp_not_sent)
-                               DiePlayer(player);
+                       if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
+                               DiePlayer(client->peer_id);
 
                        /*
                                Send player inventories and HPs if necessary
                        */
-                       if(player->m_inventory_not_sent){
-                               UpdateCrafting(player->peer_id);
-                               SendInventory(player->peer_id);
+                       if(playersao->m_teleported){
+                               SendMovePlayer(client->peer_id);
+                               playersao->m_teleported = false;
                        }
-                       if(player->m_hp_not_sent){
-                               SendPlayerHP(player);
+                       if(playersao->m_inventory_not_sent){
+                               UpdateCrafting(client->peer_id);
+                               SendInventory(client->peer_id);
                        }
-
-                       /*
-                               Add to environment
-                       */
-                       if(!player->m_is_in_environment){
-                               player->m_removed = false;
-                               player->setId(0);
-                               m_env->addActiveObject(player);
+                       if(playersao->m_hp_not_sent){
+                               SendPlayerHP(client->peer_id);
                        }
                }
        }
@@ -1481,7 +1557,7 @@ void Server::AsyncRunStep()
                                        infostream<<"WARNING: "<<__FUNCTION_NAME
                                                        <<": NULL object"<<std::endl;
                                else
-                                       type = obj->getType();
+                                       type = obj->getSendType();
 
                                // Add to data buffer for sending
                                writeU16((u8*)buf, id);
@@ -1510,7 +1586,7 @@ void Server::AsyncRunStep()
                        // Send as reliable
                        m_con.Send(client->peer_id, 0, reply, true);
 
-                       infostream<<"Server: Sent object remove/add: "
+                       verbosestream<<"Server: Sent object remove/add: "
                                        <<removed_objects.size()<<" removed, "
                                        <<added_objects.size()<<" added, "
                                        <<"packet size is "<<reply.getSize()<<std::endl;
@@ -1665,6 +1741,10 @@ void Server::AsyncRunStep()
                Send queued-for-sending map edit events.
        */
        {
+               // We will be accessing the environment and the connection
+               JMutexAutoLock lock(m_env_mutex);
+               JMutexAutoLock conlock(m_con_mutex);
+
                // Don't send too many at a time
                //u32 count = 0;
 
@@ -1673,15 +1753,13 @@ void Server::AsyncRunStep()
                if(m_unsent_map_edit_queue.size() >= 4)
                        disable_single_change_sending = true;
 
-               bool got_any_events = false;
+               int event_count = m_unsent_map_edit_queue.size();
 
                // We'll log the amount of each
                Profiler prof;
 
                while(m_unsent_map_edit_queue.size() != 0)
                {
-                       got_any_events = true;
-
                        MapEditEvent* event = m_unsent_map_edit_queue.pop_front();
                        
                        // Players far away from the change are stored here.
@@ -1772,10 +1850,12 @@ void Server::AsyncRunStep()
                                break;*/
                }
 
-               if(got_any_events)
-               {
+               if(event_count >= 5){
                        infostream<<"Server: MapEditEvents:"<<std::endl;
                        prof.print(infostream);
+               } else if(event_count != 0){
+                       verbosestream<<"Server: MapEditEvents:"<<std::endl;
+                       prof.print(verbosestream);
                }
                
        }
@@ -1792,6 +1872,10 @@ void Server::AsyncRunStep()
                        counter = 0.0;
                        
                        m_emergethread.trigger();
+
+                       // Update m_enable_rollback_recording here too
+                       m_enable_rollback_recording =
+                                       g_settings->getBool("enable_rollback_recording");
                }
        }
 
@@ -1806,10 +1890,6 @@ void Server::AsyncRunStep()
 
                        ScopeProfiler sp(g_profiler, "Server: saving stuff");
 
-                       // Auth stuff
-                       if(m_authmanager.isModified())
-                               m_authmanager.save();
-
                        //Ban stuff
                        if(m_banmanager.isModified())
                                m_banmanager.save();
@@ -1878,13 +1958,17 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
        
        try{
                Address address = m_con.GetPeerAddress(peer_id);
+               std::string addr_s = address.serializeString();
 
                // drop player if is ip is banned
-               if(m_banmanager.isIpBanned(address.serializeString())){
+               if(m_banmanager.isIpBanned(addr_s)){
+                       infostream<<"Server: A banned client tried to connect from "
+                                       <<addr_s<<"; banned name was "
+                                       <<m_banmanager.getBanName(addr_s)<<std::endl;
+                       // This actually doesn't seem to transfer to the client
                        SendAccessDenied(m_con, peer_id,
                                        L"Your ip is banned. Banned name was "
-                                       +narrow_to_wide(m_banmanager.getBanName(
-                                               address.serializeString())));
+                                       +narrow_to_wide(m_banmanager.getBanName(addr_s)));
                        m_con.DeletePeer(peer_id);
                        return;
                }
@@ -1895,6 +1979,8 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                <<peer_id<<" not found"<<std::endl;
                return;
        }
+       
+       std::string addr_s = m_con.GetPeerAddress(peer_id).serializeString();
 
        u8 peer_ser_ver = getClient(peer_id)->serialization_version;
 
@@ -1916,7 +2002,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                if(datasize < 2+1+PLAYERNAME_SIZE)
                        return;
 
-               infostream<<"Server: Got TOSERVER_INIT from "
+               verbosestream<<"Server: Got TOSERVER_INIT from "
                                <<peer_id<<std::endl;
 
                // First byte after command is maximum supported
@@ -1934,6 +2020,8 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                
                if(deployed == SER_FMT_VER_INVALID)
                {
+                       actionstream<<"Server: A mismatched client tried to connect from "
+                                       <<addr_s<<std::endl;
                        infostream<<"Server: Cannot negotiate "
                                        "serialization version with peer "
                                        <<peer_id<<std::endl;
@@ -1959,6 +2047,8 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 
                if(net_proto_version == 0)
                {
+                       actionstream<<"Server: An old tried to connect from "<<addr_s
+                                       <<std::endl;
                        SendAccessDenied(m_con, peer_id, std::wstring(
                                        L"Your client's version is not supported.\n"
                                        L"Server version is ")
@@ -1971,6 +2061,8 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                {
                        if(net_proto_version != PROTOCOL_VERSION)
                        {
+                               actionstream<<"Server: A mismatched client tried to connect"
+                                               <<" from "<<addr_s<<std::endl;
                                SendAccessDenied(m_con, peer_id, std::wstring(
                                                L"Your client's version is not supported.\n"
                                                L"Server version is ")
@@ -1998,7 +2090,8 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                
                if(playername[0]=='\0')
                {
-                       infostream<<"Server: Player has empty name"<<std::endl;
+                       actionstream<<"Server: Player with an empty name "
+                                       <<"tried to connect from "<<addr_s<<std::endl;
                        SendAccessDenied(m_con, peer_id,
                                        L"Empty name");
                        return;
@@ -2006,81 +2099,111 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 
                if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS)==false)
                {
-                       infostream<<"Server: Player has invalid name"<<std::endl;
+                       actionstream<<"Server: Player with an invalid name "
+                                       <<"tried to connect from "<<addr_s<<std::endl;
                        SendAccessDenied(m_con, peer_id,
                                        L"Name contains unallowed characters");
                        return;
                }
 
+               infostream<<"Server: New connection: \""<<playername<<"\" from "
+                               <<m_con.GetPeerAddress(peer_id).serializeString()<<std::endl;
+
                // Get password
-               char password[PASSWORD_SIZE];
+               char given_password[PASSWORD_SIZE];
                if(datasize < 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE)
                {
                        // old version - assume blank password
-                       password[0] = 0;
+                       given_password[0] = 0;
                }
                else
                {
-                               for(u32 i=0; i<PASSWORD_SIZE-1; i++)
-                               {
-                                       password[i] = data[23+i];
-                               }
-                               password[PASSWORD_SIZE-1] = 0;
+                       for(u32 i=0; i<PASSWORD_SIZE-1; i++)
+                       {
+                               given_password[i] = data[23+i];
+                       }
+                       given_password[PASSWORD_SIZE-1] = 0;
+               }
+
+               if(!base64_is_valid(given_password)){
+                       infostream<<"Server: "<<playername
+                                       <<" supplied invalid password hash"<<std::endl;
+                       SendAccessDenied(m_con, peer_id, L"Invalid password hash");
+                       return;
                }
                
-               // Add player to auth manager
-               if(m_authmanager.exists(playername) == false)
-               {
-                       std::wstring default_password =
+               std::string checkpwd; // Password hash to check against
+               bool has_auth = scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
+               
+               // If no authentication info exists for user, create it
+               if(!has_auth){
+                       if(!isSingleplayer() &&
+                                       g_settings->getBool("disallow_empty_password") &&
+                                       std::string(given_password) == ""){
+                               SendAccessDenied(m_con, peer_id, L"Empty passwords are "
+                                               L"disallowed. Set a password and try again.");
+                               return;
+                       }
+                       std::wstring raw_default_password =
                                narrow_to_wide(g_settings->get("default_password"));
-                       std::string translated_default_password =
-                               translatePassword(playername, default_password);
+                       std::string initial_password =
+                               translatePassword(playername, raw_default_password);
 
                        // If default_password is empty, allow any initial password
-                       if (default_password.length() == 0)
-                               translated_default_password = password;
-
-                       infostream<<"Server: adding player "<<playername
-                                       <<" to auth manager"<<std::endl;
-                       m_authmanager.add(playername);
-                       m_authmanager.setPassword(playername, translated_default_password);
-                       m_authmanager.setPrivs(playername,
-                                       stringToPrivs(g_settings->get("default_privs")));
-                       m_authmanager.save();
-               }
+                       if (raw_default_password.length() == 0)
+                               initial_password = given_password;
 
-               std::string checkpwd = m_authmanager.getPassword(playername);
+                       scriptapi_create_auth(m_lua, playername, initial_password);
+               }
+               
+               has_auth = scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
 
-               /*infostream<<"Server: Client gave password '"<<password
-                               <<"', the correct one is '"<<checkpwd<<"'"<<std::endl;*/
+               if(!has_auth){
+                       SendAccessDenied(m_con, peer_id, L"Not allowed to login");
+                       return;
+               }
 
-               if(password != checkpwd)
-               {
+               if(given_password != checkpwd){
                        infostream<<"Server: peer_id="<<peer_id
                                        <<": supplied invalid password for "
                                        <<playername<<std::endl;
                        SendAccessDenied(m_con, peer_id, L"Invalid password");
                        return;
                }
+
+               // Do not allow multiple players in simple singleplayer mode.
+               // This isn't a perfect way to do it, but will suffice for now.
+               if(m_simple_singleplayer_mode && m_clients.size() > 1){
+                       infostream<<"Server: Not allowing another client to connect in"
+                                       <<" simple singleplayer mode"<<std::endl;
+                       SendAccessDenied(m_con, peer_id,
+                                       L"Running in simple singleplayer mode.");
+                       return;
+               }
                
                // Enforce user limit.
                // Don't enforce for users that have some admin right
                if(m_clients.size() >= g_settings->getU16("max_users") &&
-                               (m_authmanager.getPrivs(playername)
-                                       & (PRIV_SERVER|PRIV_BAN|PRIV_PRIVS|PRIV_PASSWORD)) == 0 &&
+                               !checkPriv(playername, "server") &&
+                               !checkPriv(playername, "ban") &&
+                               !checkPriv(playername, "privs") &&
+                               !checkPriv(playername, "password") &&
                                playername != g_settings->get("name"))
                {
+                       actionstream<<"Server: "<<playername<<" tried to join, but there"
+                                       <<" are already max_users="
+                                       <<g_settings->getU16("max_users")<<" players."<<std::endl;
                        SendAccessDenied(m_con, peer_id, L"Too many users.");
                        return;
                }
 
                // Get player
-               ServerRemotePlayer *player = emergePlayer(playername, peer_id);
+               PlayerSAO *playersao = emergePlayer(playername, peer_id);
 
                // If failed, cancel
-               if(player == NULL)
+               if(playersao == NULL)
                {
-                       infostream<<"Server: peer_id="<<peer_id
+                       errorstream<<"Server: peer_id="<<peer_id
                                        <<": failed to emerge player"<<std::endl;
                        return;
                }
@@ -2092,7 +2215,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        SharedBuffer<u8> reply(2+1+6+8);
                        writeU16(&reply[0], TOCLIENT_INIT);
                        writeU8(&reply[2], deployed);
-                       writeV3S16(&reply[2+1], floatToInt(player->getPosition()+v3f(0,BS/2,0), BS));
+                       writeV3S16(&reply[2+1], floatToInt(playersao->getPlayer()->getPosition()+v3f(0,BS/2,0), BS));
                        writeU64(&reply[2+1+6], m_env->getServerMap().getSeed());
                        
                        // Send as reliable
@@ -2102,16 +2225,22 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                /*
                        Send complete position information
                */
-               SendMovePlayer(player);
+               SendMovePlayer(peer_id);
 
                return;
        }
 
        if(command == TOSERVER_INIT2)
        {
-               infostream<<"Server: Got TOSERVER_INIT2 from "
+               verbosestream<<"Server: Got TOSERVER_INIT2 from "
                                <<peer_id<<std::endl;
 
+               Player *player = m_env->getPlayer(peer_id);
+               if(!player){
+                       verbosestream<<"Server: TOSERVER_INIT2: "
+                                       <<"Player not found; ignoring."<<std::endl;
+                       return;
+               }
 
                getClient(peer_id)->serialization_version
                                = getClient(peer_id)->pending_serialization_version;
@@ -2120,62 +2249,70 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        Send some initialization data
                */
 
+               infostream<<"Server: Sending content to "
+                               <<getPlayerName(peer_id)<<std::endl;
+
                // Send item definitions
                SendItemDef(m_con, peer_id, m_itemdef);
                
                // Send node definitions
                SendNodeDef(m_con, peer_id, m_nodedef);
                
-               // Send texture announcement
-               SendTextureAnnouncement(peer_id);
+               // Send media announcement
+               sendMediaAnnouncement(peer_id);
                
-               // Send player info to all players
-               //SendPlayerInfos();
+               // Send privileges
+               SendPlayerPrivileges(peer_id);
+               
+               // Send inventory formspec
+               SendPlayerInventoryFormspec(peer_id);
 
-               // Send inventory to player
+               // Send inventory
                UpdateCrafting(peer_id);
                SendInventory(peer_id);
-               
-               // Send player items to all players
-               SendPlayerItems();
-
-               Player *player = m_env->getPlayer(peer_id);
 
                // Send HP
-               SendPlayerHP(player);
+               SendPlayerHP(peer_id);
+               
+               // Send detached inventories
+               sendDetachedInventories(peer_id);
                
                // Show death screen if necessary
                if(player->hp == 0)
-                       SendDeathscreen(m_con, player->peer_id, false, v3f(0,0,0));
+                       SendDeathscreen(m_con, peer_id, false, v3f(0,0,0));
 
                // Send time of day
                {
                        SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
-                                       m_env->getTimeOfDay());
+                                       m_env->getTimeOfDay(), g_settings->getFloat("time_speed"));
                        m_con.Send(peer_id, 0, data, true);
                }
                
-               // Send information about server to player in chat
-               SendChatMessage(peer_id, getStatusString());
-               
-               // Send information about joining in chat
+               // Note things in chat if not in simple singleplayer mode
+               if(!m_simple_singleplayer_mode)
                {
-                       std::wstring name = L"unknown";
-                       Player *player = m_env->getPlayer(peer_id);
-                       if(player != NULL)
-                               name = narrow_to_wide(player->getName());
+                       // Send information about server to player in chat
+                       SendChatMessage(peer_id, getStatusString());
                        
-                       std::wstring message;
-                       message += L"*** ";
-                       message += name;
-                       message += L" joined game";
-                       BroadcastChatMessage(message);
+                       // Send information about joining in chat
+                       {
+                               std::wstring name = L"unknown";
+                               Player *player = m_env->getPlayer(peer_id);
+                               if(player != NULL)
+                                       name = narrow_to_wide(player->getName());
+                               
+                               std::wstring message;
+                               message += L"*** ";
+                               message += name;
+                               message += L" joined the game.";
+                               BroadcastChatMessage(message);
+                       }
                }
                
                // Warnings about protocol version can be issued here
                if(getClient(peer_id)->net_proto_version < PROTOCOL_VERSION)
                {
-                       SendChatMessage(peer_id, L"# Server: WARNING: YOUR CLIENT IS OLD AND MAY WORK PROPERLY WITH THIS SERVER");
+                       SendChatMessage(peer_id, L"# Server: WARNING: YOUR CLIENT IS OLD AND MAY WORK PROPERLY WITH THIS SERVER!");
                }
 
                /*
@@ -2215,14 +2352,21 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
        }
        
        Player *player = m_env->getPlayer(peer_id);
-       ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
-
        if(player == NULL){
                infostream<<"Server::ProcessData(): Cancelling: "
                                "No player for peer_id="<<peer_id
                                <<std::endl;
                return;
        }
+
+       PlayerSAO *playersao = player->getPlayerSAO();
+       if(playersao == NULL){
+               infostream<<"Server::ProcessData(): Cancelling: "
+                               "No player object for peer_id="<<peer_id
+                               <<std::endl;
+               return;
+       }
+
        if(command == TOSERVER_PLAYERPOS)
        {
                if(datasize < 2+12+12+4+4)
@@ -2328,53 +2472,15 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
        }
        else if(command == TOSERVER_SIGNNODETEXT)
        {
-               if((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
-                       return;
-               /*
-                       u16 command
-                       v3s16 p
-                       u16 textlen
-                       textdata
-               */
-               std::string datastring((char*)&data[2], datasize-2);
-               std::istringstream is(datastring, std::ios_base::binary);
-               u8 buf[6];
-               // Read stuff
-               is.read((char*)buf, 6);
-               v3s16 p = readV3S16(buf);
-               is.read((char*)buf, 2);
-               u16 textlen = readU16(buf);
-               std::string text;
-               for(u16 i=0; i<textlen; i++)
-               {
-                       is.read((char*)buf, 1);
-                       text += (char)buf[0];
-               }
-
-               NodeMetadata *meta = m_env->getMap().getNodeMetadata(p);
-               if(!meta)
-                       return;
-
-               meta->setText(text);
-               
-               actionstream<<player->getName()<<" writes \""<<text<<"\" to sign"
-                               <<" at "<<PP(p)<<std::endl;
-                               
-               v3s16 blockpos = getNodeBlockPos(p);
-               MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos);
-               if(block)
-               {
-                       block->raiseModified(MOD_STATE_WRITE_NEEDED,
-                                       "sign node text");
-               }
-
-               setBlockNotSent(blockpos);
+               infostream<<"Server: SIGNNODETEXT not supported anymore"
+                               <<std::endl;
+               return;
        }
        else if(command == TOSERVER_INVENTORY_ACTION)
        {
                // Strip command and create a stream
                std::string datastring((char*)&data[2], datasize-2);
-               infostream<<"TOSERVER_INVENTORY_ACTION: data="<<datastring<<std::endl;
+               verbosestream<<"TOSERVER_INVENTORY_ACTION: data="<<datastring<<std::endl;
                std::istringstream is(datastring, std::ios_base::binary);
                // Create an action
                InventoryAction *a = InventoryAction::deSerialize(is);
@@ -2386,6 +2492,10 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        return;
                }
 
+               // If something goes wrong, this player is to blame
+               RollbackScopeActor rollback_scope(m_rollback,
+                               std::string("player:")+player->getName());
+
                /*
                        Note: Always set inventory not sent, to repair cases
                        where the client made a bad prediction.
@@ -2440,39 +2550,15 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 
                        // Disallow moving items in elsewhere than player's inventory
                        // if not allowed to interact
-                       if((getPlayerPrivs(player) & PRIV_INTERACT) == 0
-                                       && (!from_inv_is_current_player
-                                       || !to_inv_is_current_player))
+                       if(!checkPriv(player->getName(), "interact") &&
+                                       (!from_inv_is_current_player ||
+                                       !to_inv_is_current_player))
                        {
                                infostream<<"Cannot move outside of player's inventory: "
                                                <<"No interact privilege"<<std::endl;
                                delete a;
                                return;
                        }
-
-                       // If player is not an admin, check for ownership of src and dst
-                       if((getPlayerPrivs(player) & PRIV_SERVER) == 0)
-                       {
-                               std::string owner_from = getInventoryOwner(ma->from_inv);
-                               if(owner_from != "" && owner_from != player->getName())
-                               {
-                                       infostream<<"WARNING: "<<player->getName()
-                                               <<" tried to access an inventory that"
-                                               <<" belongs to "<<owner_from<<std::endl;
-                                       delete a;
-                                       return;
-                               }
-
-                               std::string owner_to = getInventoryOwner(ma->to_inv);
-                               if(owner_to != "" && owner_to != player->getName())
-                               {
-                                       infostream<<"WARNING: "<<player->getName()
-                                               <<" tried to access an inventory that"
-                                               <<" belongs to "<<owner_to<<std::endl;
-                                       delete a;
-                                       return;
-                               }
-                       }
                }
                /*
                        Handle restrictions and special cases of the drop action
@@ -2486,24 +2572,11 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        setInventoryModified(da->from_inv);
 
                        // Disallow dropping items if not allowed to interact
-                       if((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
+                       if(!checkPriv(player->getName(), "interact"))
                        {
                                delete a;
                                return;
                        }
-                       // If player is not an admin, check for ownership
-                       else if((getPlayerPrivs(player) & PRIV_SERVER) == 0)
-                       {
-                               std::string owner_from = getInventoryOwner(da->from_inv);
-                               if(owner_from != "" && owner_from != player->getName())
-                               {
-                                       infostream<<"WARNING: "<<player->getName()
-                                               <<" tried to access an inventory that"
-                                               <<" belongs to "<<owner_from<<std::endl;
-                                       delete a;
-                                       return;
-                               }
-                       }
                }
                /*
                        Handle restrictions and special cases of the craft action
@@ -2521,31 +2594,17 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        //      (ca->craft_inv.name == player->getName());
 
                        // Disallow crafting if not allowed to interact
-                       if((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
+                       if(!checkPriv(player->getName(), "interact"))
                        {
                                infostream<<"Cannot craft: "
                                                <<"No interact privilege"<<std::endl;
                                delete a;
                                return;
                        }
-
-                       // If player is not an admin, check for ownership of inventory
-                       if((getPlayerPrivs(player) & PRIV_SERVER) == 0)
-                       {
-                               std::string owner_craft = getInventoryOwner(ca->craft_inv);
-                               if(owner_craft != "" && owner_craft != player->getName())
-                               {
-                                       infostream<<"WARNING: "<<player->getName()
-                                               <<" tried to access an inventory that"
-                                               <<" belongs to "<<owner_craft<<std::endl;
-                                       delete a;
-                                       return;
-                               }
-                       }
                }
                
                // Do the action
-               a->apply(this, srp, this);
+               a->apply(this, playersao, this);
                // Eat the action
                delete a;
        }
@@ -2571,6 +2630,10 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        message += (wchar_t)readU16(buf);
                }
 
+               // If something goes wrong, this player is to blame
+               RollbackScopeActor rollback_scope(m_rollback,
+                               std::string("player:")+player->getName());
+
                // Get player name of this client
                std::wstring name = narrow_to_wide(player->getName());
                
@@ -2588,55 +2651,27 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                // Whether to send to other players
                bool send_to_others = false;
                
-               // Local player gets all privileges regardless of
-               // what's set on their account.
-               u64 privs = getPlayerPrivs(player);
-
-               // Parse commands
+               // Commands are implemented in Lua, so only catch invalid
+               // commands that were not "eaten" and send an error back
                if(message[0] == L'/')
                {
-                       size_t strip_size = 1;
-                       if (message[1] == L'#') // support old-style commans
-                               ++strip_size;
-                       message = message.substr(strip_size);
-
-                       WStrfnd f1(message);
-                       f1.next(L" "); // Skip over /#whatever
-                       std::wstring paramstring = f1.next(L"");
-
-                       ServerCommandContext *ctx = new ServerCommandContext(
-                               str_split(message, L' '),
-                               paramstring,
-                               this,
-                               m_env,
-                               player,
-                               privs);
-
-                       std::wstring reply(processServerCommand(ctx));
-                       send_to_sender = ctx->flags & SEND_TO_SENDER;
-                       send_to_others = ctx->flags & SEND_TO_OTHERS;
-
-                       if (ctx->flags & SEND_NO_PREFIX)
-                               line += reply;
+                       message = message.substr(1);
+                       send_to_sender = true;
+                       if(message.length() == 0)
+                               line += L"-!- Empty command";
                        else
-                               line += L"Server: " + reply;
-
-                       delete ctx;
-
+                               line += L"-!- Invalid command: " + str_split(message, L' ')[0];
                }
                else
                {
-                       if(privs & PRIV_SHOUT)
-                       {
+                       if(checkPriv(player->getName(), "shout")){
                                line += L"<";
                                line += name;
                                line += L"> ";
                                line += message;
                                send_to_others = true;
-                       }
-                       else
-                       {
-                               line += L"Server: You are not allowed to shout";
+                       } else {
+                               line += L"-!- You don't have permission to shout.";
                                send_to_sender = true;
                        }
                }
@@ -2676,27 +2711,17 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                std::istringstream is(datastring, std::ios_base::binary);
                u8 damage = readU8(is);
 
-               ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
-
-               if(g_settings->getBool("enable_damage"))
-               {
-                       actionstream<<player->getName()<<" damaged by "
-                                       <<(int)damage<<" hp at "<<PP(player->getPosition()/BS)
-                                       <<std::endl;
+               actionstream<<player->getName()<<" damaged by "
+                               <<(int)damage<<" hp at "<<PP(player->getPosition()/BS)
+                               <<std::endl;
 
-                       srp->setHP(srp->getHP() - damage);
+               playersao->setHP(playersao->getHP() - damage);
 
-                       if(srp->getHP() == 0 && srp->m_hp_not_sent)
-                               DiePlayer(srp);
+               if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
+                       DiePlayer(peer_id);
 
-                       if(srp->m_hp_not_sent)
-                               SendPlayerHP(player);
-               }
-               else
-               {
-                       // Force send (to correct the client's predicted HP)
-                       SendPlayerHP(player);
-               }
+               if(playersao->m_hp_not_sent)
+                       SendPlayerHP(peer_id);
        }
        else if(command == TOSERVER_PASSWORD)
        {
@@ -2729,20 +2754,20 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        newpwd += c;
                }
 
+               if(!base64_is_valid(newpwd)){
+                       infostream<<"Server: "<<player->getName()<<" supplied invalid password hash"<<std::endl;
+                       // Wrong old password supplied!!
+                       SendChatMessage(peer_id, L"Invalid new password hash supplied. Password NOT changed.");
+                       return;
+               }
+
                infostream<<"Server: Client requests a password change from "
                                <<"'"<<oldpwd<<"' to '"<<newpwd<<"'"<<std::endl;
 
                std::string playername = player->getName();
 
-               if(m_authmanager.exists(playername) == false)
-               {
-                       infostream<<"Server: playername not found in authmanager"<<std::endl;
-                       // Wrong old password supplied!!
-                       SendChatMessage(peer_id, L"playername not found in authmanager");
-                       return;
-               }
-
-               std::string checkpwd = m_authmanager.getPassword(playername);
+               std::string checkpwd;
+               scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
 
                if(oldpwd != checkpwd)
                {
@@ -2752,13 +2777,15 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        return;
                }
 
-               actionstream<<player->getName()<<" changes password"<<std::endl;
-
-               m_authmanager.setPassword(playername, newpwd);
-               
-               infostream<<"Server: password change successful for "<<playername
-                               <<std::endl;
-               SendChatMessage(peer_id, L"Password change successful");
+               bool success = scriptapi_set_password(m_lua, playername, newpwd);
+               if(success){
+                       actionstream<<player->getName()<<" changes password"<<std::endl;
+                       SendChatMessage(peer_id, L"Password change successful.");
+               } else {
+                       actionstream<<player->getName()<<" tries to change password but "
+                                       <<"it fails"<<std::endl;
+                       SendChatMessage(peer_id, L"Password change failed or inavailable.");
+               }
        }
        else if(command == TOSERVER_PLAYERITEM)
        {
@@ -2766,15 +2793,14 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        return;
 
                u16 item = readU16(&data[2]);
-               srp->setWieldIndex(item);
-               SendWieldedItem(srp);
+               playersao->setWieldIndex(item);
        }
        else if(command == TOSERVER_RESPAWN)
        {
                if(player->hp != 0)
                        return;
                
-               RespawnPlayer(player);
+               RespawnPlayer(peer_id);
                
                actionstream<<player->getName()<<" respawns at "
                                <<PP(player->getPosition()/BS)<<std::endl;
@@ -2782,28 +2808,28 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                // ActiveObject is added to environment in AsyncRunStep after
                // the previous addition has been succesfully removed
        }
-       else if(command == TOSERVER_REQUEST_TEXTURES) {
+       else if(command == TOSERVER_REQUEST_MEDIA) {
                std::string datastring((char*)&data[2], datasize-2);
                std::istringstream is(datastring, std::ios_base::binary);
+               
+               core::list<MediaRequest> tosend;
+               u16 numfiles = readU16(is);
 
-               infostream<<"TOSERVER_REQUEST_TEXTURES: "<<std::endl;
-
-               core::list<TextureRequest> tosend;
-
-               u16 numtextures = readU16(is);
-
-               for(int i = 0; i < numtextures; i++) {
+               infostream<<"Sending "<<numfiles<<" files to "
+                               <<getPlayerName(peer_id)<<std::endl;
+               verbosestream<<"TOSERVER_REQUEST_MEDIA: "<<std::endl;
 
+               for(int i = 0; i < numfiles; i++) {
                        std::string name = deSerializeString(is);
-
-                       tosend.push_back(TextureRequest(name));
-                       infostream<<"TOSERVER_REQUEST_TEXTURES: requested texture " << name <<std::endl;
+                       tosend.push_back(MediaRequest(name));
+                       verbosestream<<"TOSERVER_REQUEST_MEDIA: requested file "
+                                       <<name<<std::endl;
                }
 
-               SendTexturesRequested(peer_id, tosend);
+               sendRequestedMedia(peer_id, tosend);
 
                // Now the client should know about everything
-               // (definitions and textures)
+               // (definitions and files)
                getClient(peer_id)->definitions_sent = true;
        }
        else if(command == TOSERVER_INTERACT)
@@ -2830,23 +2856,20 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                PointedThing pointed;
                pointed.deSerialize(tmp_is);
 
-               infostream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="<<item_i<<", pointed="<<pointed.dump()<<std::endl;
+               verbosestream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="
+                               <<item_i<<", pointed="<<pointed.dump()<<std::endl;
 
                if(player->hp == 0)
                {
-                       infostream<<"TOSERVER_INTERACT: "<<srp->getName()
+                       verbosestream<<"TOSERVER_INTERACT: "<<player->getName()
                                <<" tried to interact, but is dead!"<<std::endl;
                        return;
                }
 
-               v3f player_pos = srp->m_last_good_position;
+               v3f player_pos = playersao->getLastGoodPosition();
 
                // Update wielded item
-               if(srp->getWieldIndex() != item_i)
-               {
-                       srp->setWieldIndex(item_i);
-                       SendWieldedItem(srp);
-               }
+               playersao->setWieldIndex(item_i);
 
                // Get pointed to node (undefined if not POINTEDTYPE_NODE)
                v3s16 p_under = pointed.node_undersurface;
@@ -2859,7 +2882,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        pointed_object = m_env->getActiveObject(pointed.object_id);
                        if(pointed_object == NULL)
                        {
-                               infostream<<"TOSERVER_INTERACT: "
+                               verbosestream<<"TOSERVER_INTERACT: "
                                        "pointed object is NULL"<<std::endl;
                                return;
                        }
@@ -2905,14 +2928,32 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                /*
                        Make sure the player is allowed to do it
                */
-               if((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
+               if(!checkPriv(player->getName(), "interact"))
                {
-                       infostream<<"Ignoring interaction from player "<<player->getName()
-                                       <<" because privileges are "<<getPlayerPrivs(player)
+                       actionstream<<player->getName()<<" attempted to interact with "
+                                       <<pointed.dump()<<" without 'interact' privilege"
                                        <<std::endl;
+                       // Re-send block to revert change on client-side
+                       RemoteClient *client = getClient(peer_id);
+                       // Digging completed -> under
+                       if(action == 2){
+                               v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+                               client->SetBlockNotSent(blockpos);
+                       }
+                       // Placement -> above
+                       if(action == 3){
+                               v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+                               client->SetBlockNotSent(blockpos);
+                       }
                        return;
                }
 
+               /*
+                       If something goes wrong, this player is to blame
+               */
+               RollbackScopeActor rollback_scope(m_rollback,
+                               std::string("player:")+player->getName());
+
                /*
                        0: start digging or punch object
                */
@@ -2938,7 +2979,9 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                                        getNodeBlockPos(p_above), BLOCK_EMERGE_FLAG_FROMDISK);
                                }
                                if(n.getContent() != CONTENT_IGNORE)
-                                       scriptapi_node_on_punch(m_lua, p_under, n, srp);
+                                       scriptapi_node_on_punch(m_lua, p_under, n, playersao);
+                               // Cheat prevention
+                               playersao->noCheatDigStart(p_under);
                        }
                        else if(pointed.type == POINTEDTHING_OBJECT)
                        {
@@ -2947,17 +2990,19 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                        return;
 
                                actionstream<<player->getName()<<" punches object "
-                                       <<pointed.object_id<<std::endl;
+                                               <<pointed.object_id<<": "
+                                               <<pointed_object->getDescription()<<std::endl;
 
-                               ItemStack punchitem = srp->getWieldedItem();
+                               ItemStack punchitem = playersao->getWieldedItem();
                                ToolCapabilities toolcap =
                                                punchitem.getToolCapabilities(m_itemdef);
                                v3f dir = (pointed_object->getBasePosition() -
-                                               (srp->getPosition() + srp->getEyeOffset())
+                                               (player->getPosition() + player->getEyeOffset())
                                                        ).normalize();
-                               pointed_object->punch(dir, &toolcap, srp,
-                                               srp->m_time_from_last_punch);
-                               srp->m_time_from_last_punch = 0;
+                               float time_from_last_punch =
+                                       playersao->resetTimeFromLastPunch();
+                               pointed_object->punch(dir, &toolcap, playersao,
+                                               time_from_last_punch);
                        }
 
                } // action == 0
@@ -2974,7 +3019,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                */
                else if(action == 2)
                {
-                       // Only complete digging of nodes
+                       // Only digging of nodes
                        if(pointed.type == POINTEDTHING_NODE)
                        {
                                MapNode n(CONTENT_IGNORE);
@@ -2990,8 +3035,71 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                        m_emerge_queue.addBlock(peer_id,
                                                        getNodeBlockPos(p_above), BLOCK_EMERGE_FLAG_FROMDISK);
                                }
-                               if(n.getContent() != CONTENT_IGNORE)
-                                       scriptapi_node_on_dig(m_lua, p_under, n, srp);
+
+                               /* Cheat prevention */
+                               bool is_valid_dig = true;
+                               if(!isSingleplayer() && !g_settings->getBool("disable_anticheat"))
+                               {
+                                       v3s16 nocheat_p = playersao->getNoCheatDigPos();
+                                       float nocheat_t = playersao->getNoCheatDigTime();
+                                       playersao->noCheatDigEnd();
+                                       // If player didn't start digging this, ignore dig
+                                       if(nocheat_p != p_under){
+                                               infostream<<"Server: NoCheat: "<<player->getName()
+                                                               <<" started digging "
+                                                               <<PP(nocheat_p)<<" and completed digging "
+                                                               <<PP(p_under)<<"; not digging."<<std::endl;
+                                               is_valid_dig = false;
+                                       }
+                                       // Get player's wielded item
+                                       ItemStack playeritem;
+                                       InventoryList *mlist = playersao->getInventory()->getList("main");
+                                       if(mlist != NULL)
+                                               playeritem = mlist->getItem(playersao->getWieldIndex());
+                                       ToolCapabilities playeritem_toolcap =
+                                                       playeritem.getToolCapabilities(m_itemdef);
+                                       // Get diggability and expected digging time
+                                       DigParams params = getDigParams(m_nodedef->get(n).groups,
+                                                       &playeritem_toolcap);
+                                       // If can't dig, try hand
+                                       if(!params.diggable){
+                                               const ItemDefinition &hand = m_itemdef->get("");
+                                               const ToolCapabilities *tp = hand.tool_capabilities;
+                                               if(tp)
+                                                       params = getDigParams(m_nodedef->get(n).groups, tp);
+                                       }
+                                       // If can't dig, ignore dig
+                                       if(!params.diggable){
+                                               infostream<<"Server: NoCheat: "<<player->getName()
+                                                               <<" completed digging "<<PP(p_under)
+                                                               <<", which is not diggable with tool. not digging."
+                                                               <<std::endl;
+                                               is_valid_dig = false;
+                                       }
+                                       // If time is considerably too short, ignore dig
+                                       // Check time only for medium and slow timed digs
+                                       if(params.diggable && params.time > 0.3 && nocheat_t < 0.5 * params.time){
+                                               infostream<<"Server: NoCheat: "<<player->getName()
+                                                               <<" completed digging "
+                                                               <<PP(p_under)<<" in "<<nocheat_t<<"s; expected "
+                                                               <<params.time<<"s; not digging."<<std::endl;
+                                               is_valid_dig = false;
+                                       }
+                               }
+
+                               /* Actually dig node */
+
+                               if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
+                                       scriptapi_node_on_dig(m_lua, p_under, n, playersao);
+
+                               // Send unusual result (that is, node not being removed)
+                               if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR)
+                               {
+                                       // Re-send block to revert change on client-side
+                                       RemoteClient *client = getClient(peer_id);
+                                       v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+                                       client->SetBlockNotSent(blockpos);
+                               }
                        }
                } // action == 2
                
@@ -3000,7 +3108,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                */
                else if(action == 3)
                {
-                       ItemStack item = srp->getWieldedItem();
+                       ItemStack item = playersao->getWieldedItem();
 
                        // Reset build time counter
                        if(pointed.type == POINTEDTHING_NODE &&
@@ -3016,21 +3124,28 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                        return;
 
                                actionstream<<player->getName()<<" right-clicks object "
-                                       <<pointed.object_id<<std::endl;
+                                               <<pointed.object_id<<": "
+                                               <<pointed_object->getDescription()<<std::endl;
 
                                // Do stuff
-                               pointed_object->rightClick(srp);
+                               pointed_object->rightClick(playersao);
                        }
                        else if(scriptapi_item_on_place(m_lua,
-                                       item, srp, pointed))
+                                       item, playersao, pointed))
                        {
                                // Placement was handled in lua
 
                                // Apply returned ItemStack
-                               if(g_settings->getBool("creative_mode") == false)
-                                       srp->setWieldedItem(item);
+                               playersao->setWieldedItem(item);
+                       }
+                       
+                       // If item has node placement prediction, always send the above
+                       // node to make sure the client knows what exactly happened
+                       if(item.getDefinition(m_itemdef).node_placement_prediction != ""){
+                               RemoteClient *client = getClient(peer_id);
+                               v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+                               client->SetBlockNotSent(blockpos);
                        }
-
                } // action == 3
 
                /*
@@ -3038,17 +3153,16 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                */
                else if(action == 4)
                {
-                       ItemStack item = srp->getWieldedItem();
+                       ItemStack item = playersao->getWieldedItem();
 
                        actionstream<<player->getName()<<" uses "<<item.name
                                        <<", pointing at "<<pointed.dump()<<std::endl;
 
                        if(scriptapi_item_on_use(m_lua,
-                                       item, srp, pointed))
+                                       item, playersao, pointed))
                        {
                                // Apply returned ItemStack
-                               if(g_settings->getBool("creative_mode") == false)
-                                       srp->setWieldedItem(item);
+                               playersao->setWieldedItem(item);
                        }
 
                } // action == 4
@@ -3062,6 +3176,73 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                        <<action<<std::endl;
                }
        }
+       else if(command == TOSERVER_REMOVED_SOUNDS)
+       {
+               std::string datastring((char*)&data[2], datasize-2);
+               std::istringstream is(datastring, std::ios_base::binary);
+
+               int num = readU16(is);
+               for(int k=0; k<num; k++){
+                       s32 id = readS32(is);
+                       std::map<s32, ServerPlayingSound>::iterator i =
+                                       m_playing_sounds.find(id);
+                       if(i == m_playing_sounds.end())
+                               continue;
+                       ServerPlayingSound &psound = i->second;
+                       psound.clients.erase(peer_id);
+                       if(psound.clients.size() == 0)
+                               m_playing_sounds.erase(i++);
+               }
+       }
+       else if(command == TOSERVER_NODEMETA_FIELDS)
+       {
+               std::string datastring((char*)&data[2], datasize-2);
+               std::istringstream is(datastring, std::ios_base::binary);
+               
+               v3s16 p = readV3S16(is);
+               std::string formname = deSerializeString(is);
+               int num = readU16(is);
+               std::map<std::string, std::string> fields;
+               for(int k=0; k<num; k++){
+                       std::string fieldname = deSerializeString(is);
+                       std::string fieldvalue = deSerializeLongString(is);
+                       fields[fieldname] = fieldvalue;
+               }
+
+               // If something goes wrong, this player is to blame
+               RollbackScopeActor rollback_scope(m_rollback,
+                               std::string("player:")+player->getName());
+
+               // Check the target node for rollback data; leave others unnoticed
+               RollbackNode rn_old(&m_env->getMap(), p, this);
+
+               scriptapi_node_on_receive_fields(m_lua, p, formname, fields,
+                               playersao);
+
+               // Report rollback data
+               RollbackNode rn_new(&m_env->getMap(), p, this);
+               if(rollback() && rn_new != rn_old){
+                       RollbackAction action;
+                       action.setSetNode(p, rn_old, rn_new);
+                       rollback()->reportAction(action);
+               }
+       }
+       else if(command == TOSERVER_INVENTORY_FIELDS)
+       {
+               std::string datastring((char*)&data[2], datasize-2);
+               std::istringstream is(datastring, std::ios_base::binary);
+               
+               std::string formname = deSerializeString(is);
+               int num = readU16(is);
+               std::map<std::string, std::string> fields;
+               for(int k=0; k<num; k++){
+                       std::string fieldname = deSerializeString(is);
+                       std::string fieldvalue = deSerializeLongString(is);
+                       fields[fieldname] = fieldvalue;
+               }
+
+               scriptapi_on_player_receive_fields(m_lua, playersao, formname, fields);
+       }
        else
        {
                infostream<<"Server::ProcessData(): Ignoring "
@@ -3082,6 +3263,8 @@ void Server::onMapEditEvent(MapEditEvent *event)
        //infostream<<"Server::onMapEditEvent()"<<std::endl;
        if(m_ignore_map_edit_events)
                return;
+       if(m_ignore_map_edit_events_area.contains(event->getArea()))
+               return;
        MapEditEvent *e = event->clone();
        m_unsent_map_edit_queue.push_back(e);
 }
@@ -3100,7 +3283,10 @@ Inventory* Server::getInventory(const InventoryLocation &loc)
                Player *player = m_env->getPlayer(loc.name.c_str());
                if(!player)
                        return NULL;
-               return &player->inventory;
+               PlayerSAO *playersao = player->getPlayerSAO();
+               if(!playersao)
+                       return NULL;
+               return playersao->getInventory();
        }
        break;
        case InventoryLocation::NODEMETA:
@@ -3111,37 +3297,17 @@ Inventory* Server::getInventory(const InventoryLocation &loc)
                return meta->getInventory();
        }
        break;
-       default:
-               assert(0);
-       }
-       return NULL;
-}
-std::string Server::getInventoryOwner(const InventoryLocation &loc)
-{
-       switch(loc.type){
-       case InventoryLocation::UNDEFINED:
-       {}
-       break;
-       case InventoryLocation::CURRENT_PLAYER:
-       {}
-       break;
-       case InventoryLocation::PLAYER:
-       {
-               return loc.name;
-       }
-       break;
-       case InventoryLocation::NODEMETA:
+       case InventoryLocation::DETACHED:
        {
-               NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
-               if(!meta)
-                       return "";
-               return meta->getOwner();
+               if(m_detached_inventories.count(loc.name) == 0)
+                       return NULL;
+               return m_detached_inventories[loc.name];
        }
        break;
        default:
                assert(0);
        }
-       return "";
+       return NULL;
 }
 void Server::setInventoryModified(const InventoryLocation &loc)
 {
@@ -3151,21 +3317,20 @@ void Server::setInventoryModified(const InventoryLocation &loc)
        break;
        case InventoryLocation::PLAYER:
        {
-               ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>
-                               (m_env->getPlayer(loc.name.c_str()));
-               if(!srp)
+               Player *player = m_env->getPlayer(loc.name.c_str());
+               if(!player)
+                       return;
+               PlayerSAO *playersao = player->getPlayerSAO();
+               if(!playersao)
                        return;
-               srp->m_inventory_not_sent = true;
+               playersao->m_inventory_not_sent = true;
+               playersao->m_wielded_item_not_sent = true;
        }
        break;
        case InventoryLocation::NODEMETA:
        {
                v3s16 blockpos = getNodeBlockPos(loc.p);
 
-               NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
-               if(meta)
-                       meta->inventoryModified();
-               
                MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos);
                if(block)
                        block->raiseModified(MOD_STATE_WRITE_NEEDED);
@@ -3173,6 +3338,11 @@ void Server::setInventoryModified(const InventoryLocation &loc)
                setBlockNotSent(blockpos);
        }
        break;
+       case InventoryLocation::DETACHED:
+       {
+               sendDetachedInventoryToAll(loc.name);
+       }
+       break;
        default:
                assert(0);
        }
@@ -3223,7 +3393,7 @@ core::list<PlayerInfo> Server::getPlayerInfo()
 void Server::peerAdded(con::Peer *peer)
 {
        DSTACK(__FUNCTION_NAME);
-       infostream<<"Server::peerAdded(): peer->id="
+       verbosestream<<"Server::peerAdded(): peer->id="
                        <<peer->id<<std::endl;
        
        PeerChange c;
@@ -3236,7 +3406,7 @@ void Server::peerAdded(con::Peer *peer)
 void Server::deletingPeer(con::Peer *peer, bool timeout)
 {
        DSTACK(__FUNCTION_NAME);
-       infostream<<"Server::deletingPeer(): peer->id="
+       verbosestream<<"Server::deletingPeer(): peer->id="
                        <<peer->id<<", timeout="<<timeout<<std::endl;
        
        PeerChange c;
@@ -3318,8 +3488,8 @@ void Server::SendItemDef(con::Connection &con, u16 peer_id,
 
        // Make data buffer
        std::string s = os.str();
-       infostream<<"Server::SendItemDef(): Sending item definitions: size="
-                       <<s.size()<<std::endl;
+       verbosestream<<"Server: Sending item definitions to id("<<peer_id
+                       <<"): size="<<s.size()<<std::endl;
        SharedBuffer<u8> data((u8*)s.c_str(), s.size());
        // Send as reliable
        con.Send(peer_id, 0, data, true);
@@ -3345,8 +3515,8 @@ void Server::SendNodeDef(con::Connection &con, u16 peer_id,
 
        // Make data buffer
        std::string s = os.str();
-       infostream<<"Server::SendNodeDef(): Sending node definitions: size="
-                       <<s.size()<<std::endl;
+       verbosestream<<"Server: Sending node definitions to id("<<peer_id
+                       <<"): size="<<s.size()<<std::endl;
        SharedBuffer<u8> data((u8*)s.c_str(), s.size());
        // Send as reliable
        con.Send(peer_id, 0, data, true);
@@ -3360,20 +3530,17 @@ void Server::SendInventory(u16 peer_id)
 {
        DSTACK(__FUNCTION_NAME);
        
-       ServerRemotePlayer* player =
-                       static_cast<ServerRemotePlayer*>(m_env->getPlayer(peer_id));
-       assert(player);
+       PlayerSAO *playersao = getPlayerSAO(peer_id);
+       assert(playersao);
 
-       player->m_inventory_not_sent = false;
+       playersao->m_inventory_not_sent = false;
 
        /*
                Serialize it
        */
 
        std::ostringstream os;
-       //os.imbue(std::locale("C"));
-
-       player->inventory.serialize(os);
+       playersao->getInventory()->serialize(os);
 
        std::string s = os.str();
        
@@ -3385,52 +3552,6 @@ void Server::SendInventory(u16 peer_id)
        m_con.Send(peer_id, 0, data, true);
 }
 
-void Server::SendWieldedItem(const ServerRemotePlayer* srp)
-{
-       DSTACK(__FUNCTION_NAME);
-
-       assert(srp);
-
-       std::ostringstream os(std::ios_base::binary);
-
-       writeU16(os, TOCLIENT_PLAYERITEM);
-       writeU16(os, 1);
-       writeU16(os, srp->peer_id);
-       os<<serializeString(srp->getWieldedItem().getItemString());
-
-       // Make data buffer
-       std::string s = os.str();
-       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
-
-       m_con.SendToAll(0, data, true);
-}
-
-void Server::SendPlayerItems()
-{
-       DSTACK(__FUNCTION_NAME);
-
-       std::ostringstream os(std::ios_base::binary);
-       core::list<Player *> players = m_env->getPlayers(true);
-
-       writeU16(os, TOCLIENT_PLAYERITEM);
-       writeU16(os, players.size());
-       core::list<Player *>::Iterator i;
-       for(i = players.begin(); i != players.end(); ++i)
-       {
-               Player *p = *i;
-               ServerRemotePlayer *srp =
-                       static_cast<ServerRemotePlayer*>(p);
-               writeU16(os, p->peer_id);
-               os<<serializeString(srp->getWieldedItem().getItemString());
-       }
-
-       // Make data buffer
-       std::string s = os.str();
-       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
-
-       m_con.SendToAll(0, data, true);
-}
-
 void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
 {
        DSTACK(__FUNCTION_NAME);
@@ -3477,17 +3598,22 @@ void Server::BroadcastChatMessage(const std::wstring &message)
        }
 }
 
-void Server::SendPlayerHP(Player *player)
+void Server::SendPlayerHP(u16 peer_id)
 {
-       SendHP(m_con, player->peer_id, player->hp);
-       static_cast<ServerRemotePlayer*>(player)->m_hp_not_sent = false;
+       DSTACK(__FUNCTION_NAME);
+       PlayerSAO *playersao = getPlayerSAO(peer_id);
+       assert(playersao);
+       playersao->m_hp_not_sent = false;
+       SendHP(m_con, peer_id, playersao->getHP());
 }
 
-void Server::SendMovePlayer(Player *player)
+void Server::SendMovePlayer(u16 peer_id)
 {
        DSTACK(__FUNCTION_NAME);
-       std::ostringstream os(std::ios_base::binary);
+       Player *player = m_env->getPlayer(peer_id);
+       assert(player);
 
+       std::ostringstream os(std::ios_base::binary);
        writeU16(os, TOCLIENT_MOVE_PLAYER);
        writeV3F1000(os, player->getPosition());
        writeF1000(os, player->getPitch());
@@ -3497,7 +3623,7 @@ void Server::SendMovePlayer(Player *player)
                v3f pos = player->getPosition();
                f32 pitch = player->getPitch();
                f32 yaw = player->getYaw();
-               infostream<<"Server sending TOCLIENT_MOVE_PLAYER"
+               verbosestream<<"Server: Sending TOCLIENT_MOVE_PLAYER"
                                <<" pos=("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"
                                <<" pitch="<<pitch
                                <<" yaw="<<yaw
@@ -3508,7 +3634,151 @@ void Server::SendMovePlayer(Player *player)
        std::string s = os.str();
        SharedBuffer<u8> data((u8*)s.c_str(), s.size());
        // Send as reliable
-       m_con.Send(player->peer_id, 0, data, true);
+       m_con.Send(peer_id, 0, data, true);
+}
+
+void Server::SendPlayerPrivileges(u16 peer_id)
+{
+       Player *player = m_env->getPlayer(peer_id);
+       assert(player);
+       if(player->peer_id == PEER_ID_INEXISTENT)
+               return;
+
+       std::set<std::string> privs;
+       scriptapi_get_auth(m_lua, player->getName(), NULL, &privs);
+       
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_PRIVILEGES);
+       writeU16(os, privs.size());
+       for(std::set<std::string>::const_iterator i = privs.begin();
+                       i != privs.end(); i++){
+               os<<serializeString(*i);
+       }
+
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send as reliable
+       m_con.Send(peer_id, 0, data, true);
+}
+
+void Server::SendPlayerInventoryFormspec(u16 peer_id)
+{
+       Player *player = m_env->getPlayer(peer_id);
+       assert(player);
+       if(player->peer_id == PEER_ID_INEXISTENT)
+               return;
+
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_INVENTORY_FORMSPEC);
+       os<<serializeLongString(player->inventory_formspec);
+
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send as reliable
+       m_con.Send(peer_id, 0, data, true);
+}
+
+s32 Server::playSound(const SimpleSoundSpec &spec,
+               const ServerSoundParams &params)
+{
+       // Find out initial position of sound
+       bool pos_exists = false;
+       v3f pos = params.getPos(m_env, &pos_exists);
+       // If position is not found while it should be, cancel sound
+       if(pos_exists != (params.type != ServerSoundParams::SSP_LOCAL))
+               return -1;
+       // Filter destination clients
+       std::set<RemoteClient*> dst_clients;
+       if(params.to_player != "")
+       {
+               Player *player = m_env->getPlayer(params.to_player.c_str());
+               if(!player){
+                       infostream<<"Server::playSound: Player \""<<params.to_player
+                                       <<"\" not found"<<std::endl;
+                       return -1;
+               }
+               if(player->peer_id == PEER_ID_INEXISTENT){
+                       infostream<<"Server::playSound: Player \""<<params.to_player
+                                       <<"\" not connected"<<std::endl;
+                       return -1;
+               }
+               RemoteClient *client = getClient(player->peer_id);
+               dst_clients.insert(client);
+       }
+       else
+       {
+               for(core::map<u16, RemoteClient*>::Iterator
+                               i = m_clients.getIterator(); i.atEnd() == false; i++)
+               {
+                       RemoteClient *client = i.getNode()->getValue();
+                       Player *player = m_env->getPlayer(client->peer_id);
+                       if(!player)
+                               continue;
+                       if(pos_exists){
+                               if(player->getPosition().getDistanceFrom(pos) >
+                                               params.max_hear_distance)
+                                       continue;
+                       }
+                       dst_clients.insert(client);
+               }
+       }
+       if(dst_clients.size() == 0)
+               return -1;
+       // Create the sound
+       s32 id = m_next_sound_id++;
+       // The sound will exist as a reference in m_playing_sounds
+       m_playing_sounds[id] = ServerPlayingSound();
+       ServerPlayingSound &psound = m_playing_sounds[id];
+       psound.params = params;
+       for(std::set<RemoteClient*>::iterator i = dst_clients.begin();
+                       i != dst_clients.end(); i++)
+               psound.clients.insert((*i)->peer_id);
+       // Create packet
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_PLAY_SOUND);
+       writeS32(os, id);
+       os<<serializeString(spec.name);
+       writeF1000(os, spec.gain * params.gain);
+       writeU8(os, params.type);
+       writeV3F1000(os, pos);
+       writeU16(os, params.object);
+       writeU8(os, params.loop);
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send
+       for(std::set<RemoteClient*>::iterator i = dst_clients.begin();
+                       i != dst_clients.end(); i++){
+               // Send as reliable
+               m_con.Send((*i)->peer_id, 0, data, true);
+       }
+       return id;
+}
+void Server::stopSound(s32 handle)
+{
+       // Get sound reference
+       std::map<s32, ServerPlayingSound>::iterator i =
+                       m_playing_sounds.find(handle);
+       if(i == m_playing_sounds.end())
+               return;
+       ServerPlayingSound &psound = i->second;
+       // Create packet
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_STOP_SOUND);
+       writeS32(os, handle);
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send
+       for(std::set<u16>::iterator i = psound.clients.begin();
+                       i != psound.clients.end(); i++){
+               // Send as reliable
+               m_con.Send(*i, 0, data, true);
+       }
+       // Remove sound reference
+       m_playing_sounds.erase(i);
 }
 
 void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
@@ -3745,128 +4015,157 @@ void Server::SendBlocks(float dtime)
        }
 }
 
-void Server::PrepareTextures() {
+void Server::fillMediaCache()
+{
        DSTACK(__FUNCTION_NAME);
 
-       infostream<<"Server::PrepareTextures(): Calculate sha1 sums of textures"<<std::endl;
-
+       infostream<<"Server: Calculating media file checksums"<<std::endl;
+       
+       // Collect all media file paths
+       std::list<std::string> paths;
        for(core::list<ModSpec>::Iterator i = m_mods.begin();
-                                       i != m_mods.end(); i++){
-                       const ModSpec &mod = *i;
-                       std::string texturepath = mod.path + DIR_DELIM + "textures";
-                       std::vector<fs::DirListNode> dirlist = fs::GetDirListing(texturepath);
-                       for(u32 j=0; j<dirlist.size(); j++){
-                               if(dirlist[j].dir) // Ignode dirs
-                                       continue;
-                               std::string tname = dirlist[j].name;
-                               // if name contains illegal characters, ignore the texture
-                               if(!string_allowed(tname, TEXTURENAME_ALLOWED_CHARS)){
-                                       errorstream<<"Server: ignoring illegal texture name: \""
-                                                       <<tname<<"\""<<std::endl;
-                                       continue;
-                               }
-                               std::string tpath = texturepath + DIR_DELIM + tname;
-                               // Read data
-                               std::ifstream fis(tpath.c_str(), std::ios_base::binary);
-                               if(fis.good() == false){
-                                       errorstream<<"Server::PrepareTextures(): Could not open \""
-                                                       <<tname<<"\" for reading"<<std::endl;
-                                       continue;
-                               }
-                               std::ostringstream tmp_os(std::ios_base::binary);
-                               bool bad = false;
-                               for(;;){
-                                       char buf[1024];
-                                       fis.read(buf, 1024);
-                                       std::streamsize len = fis.gcount();
-                                       tmp_os.write(buf, len);
-                                       if(fis.eof())
-                                               break;
-                                       if(!fis.good()){
-                                               bad = true;
-                                               break;
-                                       }
-                               }
-                               if(bad){
-                                       errorstream<<"Server::PrepareTextures(): Failed to read \""
-                                                       <<tname<<"\""<<std::endl;
-                                       continue;
-                               }
-                               if(tmp_os.str().length() == 0){
-                                       errorstream<<"Server::PrepareTextures(): Empty file \""
-                                                       <<tpath<<"\""<<std::endl;
-                                       continue;
+                       i != m_mods.end(); i++){
+               const ModSpec &mod = *i;
+               paths.push_back(mod.path + DIR_DELIM + "textures");
+               paths.push_back(mod.path + DIR_DELIM + "sounds");
+               paths.push_back(mod.path + DIR_DELIM + "media");
+               paths.push_back(mod.path + DIR_DELIM + "models");
+       }
+       std::string path_all = "textures";
+       paths.push_back(path_all + DIR_DELIM + "all");
+       
+       // Collect media file information from paths into cache
+       for(std::list<std::string>::iterator i = paths.begin();
+                       i != paths.end(); i++)
+       {
+               std::string mediapath = *i;
+               std::vector<fs::DirListNode> dirlist = fs::GetDirListing(mediapath);
+               for(u32 j=0; j<dirlist.size(); j++){
+                       if(dirlist[j].dir) // Ignode dirs
+                               continue;
+                       std::string filename = dirlist[j].name;
+                       // If name contains illegal characters, ignore the file
+                       if(!string_allowed(filename, TEXTURENAME_ALLOWED_CHARS)){
+                               infostream<<"Server: ignoring illegal file name: \""
+                                               <<filename<<"\""<<std::endl;
+                               continue;
+                       }
+                       // If name is not in a supported format, ignore it
+                       const char *supported_ext[] = {
+                               ".png", ".jpg", ".bmp", ".tga",
+                               ".pcx", ".ppm", ".psd", ".wal", ".rgb",
+                               ".ogg",
+                               ".x", ".b3d", ".md2", ".obj",
+                               NULL
+                       };
+                       if(removeStringEnd(filename, supported_ext) == ""){
+                               infostream<<"Server: ignoring unsupported file extension: \""
+                                               <<filename<<"\""<<std::endl;
+                               continue;
+                       }
+                       // Ok, attempt to load the file and add to cache
+                       std::string filepath = mediapath + DIR_DELIM + filename;
+                       // Read data
+                       std::ifstream fis(filepath.c_str(), std::ios_base::binary);
+                       if(fis.good() == false){
+                               errorstream<<"Server::fillMediaCache(): Could not open \""
+                                               <<filename<<"\" for reading"<<std::endl;
+                               continue;
+                       }
+                       std::ostringstream tmp_os(std::ios_base::binary);
+                       bool bad = false;
+                       for(;;){
+                               char buf[1024];
+                               fis.read(buf, 1024);
+                               std::streamsize len = fis.gcount();
+                               tmp_os.write(buf, len);
+                               if(fis.eof())
+                                       break;
+                               if(!fis.good()){
+                                       bad = true;
+                                       break;
                                }
+                       }
+                       if(bad){
+                               errorstream<<"Server::fillMediaCache(): Failed to read \""
+                                               <<filename<<"\""<<std::endl;
+                               continue;
+                       }
+                       if(tmp_os.str().length() == 0){
+                               errorstream<<"Server::fillMediaCache(): Empty file \""
+                                               <<filepath<<"\""<<std::endl;
+                               continue;
+                       }
 
-                               SHA1 sha1;
-                               sha1.addBytes(tmp_os.str().c_str(), tmp_os.str().length());
-
-                               unsigned char *digest = sha1.getDigest();
-                               std::string digest_string = base64_encode(digest, 20);
+                       SHA1 sha1;
+                       sha1.addBytes(tmp_os.str().c_str(), tmp_os.str().length());
 
-                               free(digest);
+                       unsigned char *digest = sha1.getDigest();
+                       std::string sha1_base64 = base64_encode(digest, 20);
+                       std::string sha1_hex = hex_encode((char*)digest, 20);
+                       free(digest);
 
-                               // Put in list
-                               this->m_Textures[tname] = TextureInformation(tpath,digest_string);
-                               infostream<<"Server::PrepareTextures(): added sha1 for "<< tname <<std::endl;
-                       }
+                       // Put in list
+                       this->m_media[filename] = MediaInfo(filepath, sha1_base64);
+                       verbosestream<<"Server: "<<sha1_hex<<" is "<<filename<<std::endl;
+               }
        }
 }
 
-struct SendableTextureAnnouncement
-       {
-               std::string name;
-               std::string sha1_digest;
+struct SendableMediaAnnouncement
+{
+       std::string name;
+       std::string sha1_digest;
 
-               SendableTextureAnnouncement(const std::string name_="",
-                               const std::string sha1_digest_=""):
-                       name(name_),
-                       sha1_digest(sha1_digest_)
-               {
-               }
-       };
+       SendableMediaAnnouncement(const std::string name_="",
+                       const std::string sha1_digest_=""):
+               name(name_),
+               sha1_digest(sha1_digest_)
+       {}
+};
 
-void Server::SendTextureAnnouncement(u16 peer_id){
+void Server::sendMediaAnnouncement(u16 peer_id)
+{
        DSTACK(__FUNCTION_NAME);
 
-       infostream<<"Server::SendTextureAnnouncement()"<<std::endl;
-
-       core::list<SendableTextureAnnouncement> texture_announcements;
+       verbosestream<<"Server: Announcing files to id("<<peer_id<<")"
+                       <<std::endl;
 
-       for (std::map<std::string,TextureInformation>::iterator i = m_Textures.begin();i != m_Textures.end(); i++ ) {
+       core::list<SendableMediaAnnouncement> file_announcements;
 
+       for(std::map<std::string, MediaInfo>::iterator i = m_media.begin();
+                       i != m_media.end(); i++){
                // Put in list
-               texture_announcements.push_back(
-                               SendableTextureAnnouncement(i->first, i->second.sha1_digest));
+               file_announcements.push_back(
+                               SendableMediaAnnouncement(i->first, i->second.sha1_digest));
        }
 
-       //send announcements
+       // Make packet
+       std::ostringstream os(std::ios_base::binary);
 
        /*
                u16 command
-               u32 number of textures
+               u32 number of files
                for each texture {
                        u16 length of name
                        string name
-                       u16 length of digest string
+                       u16 length of sha1_digest
                        string sha1_digest
                }
        */
-       std::ostringstream os(std::ios_base::binary);
-
-       writeU16(os,    TOCLIENT_ANNOUNCE_TEXTURES);
-       writeU16(os, texture_announcements.size());
+       
+       writeU16(os, TOCLIENT_ANNOUNCE_MEDIA);
+       writeU16(os, file_announcements.size());
 
-       for(core::list<SendableTextureAnnouncement>::Iterator
-                       j = texture_announcements.begin();
-                       j != texture_announcements.end(); j++){
+       for(core::list<SendableMediaAnnouncement>::Iterator
+                       j = file_announcements.begin();
+                       j != file_announcements.end(); j++){
                os<<serializeString(j->name);
                os<<serializeString(j->sha1_digest);
        }
 
        // Make data buffer
        std::string s = os.str();
-       infostream<<"Server::SendTextureAnnouncement(): Send to client"<<std::endl;
        SharedBuffer<u8> data((u8*)s.c_str(), s.size());
 
        // Send as reliable
@@ -3874,13 +4173,13 @@ void Server::SendTextureAnnouncement(u16 peer_id){
 
 }
 
-struct SendableTexture
+struct SendableMedia
 {
        std::string name;
        std::string path;
        std::string data;
 
-       SendableTexture(const std::string &name_="", const std::string path_="",
+       SendableMedia(const std::string &name_="", const std::string path_="",
                        const std::string &data_=""):
                name(name_),
                path(path_),
@@ -3888,35 +4187,40 @@ struct SendableTexture
        {}
 };
 
-void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend) {
+void Server::sendRequestedMedia(u16 peer_id,
+               const core::list<MediaRequest> &tosend)
+{
        DSTACK(__FUNCTION_NAME);
 
-       infostream<<"Server::SendTexturesRequested(): Sending textures to client"<<std::endl;
+       verbosestream<<"Server::sendRequestedMedia(): "
+                       <<"Sending files to client"<<std::endl;
 
-       /* Read textures */
+       /* Read files */
 
        // Put 5kB in one bunch (this is not accurate)
        u32 bytes_per_bunch = 5000;
 
-       core::array< core::list<SendableTexture> > texture_bunches;
-       texture_bunches.push_back(core::list<SendableTexture>());
+       core::array< core::list<SendableMedia> > file_bunches;
+       file_bunches.push_back(core::list<SendableMedia>());
 
-       u32 texture_size_bunch_total = 0;
+       u32 file_size_bunch_total = 0;
 
-       for(core::list<TextureRequest>::Iterator i = tosend.begin(); i != tosend.end(); i++) {
-               if(m_Textures.find(i->name) == m_Textures.end()){
-                       errorstream<<"Server::SendTexturesRequested(): Client asked for "
-                                       <<"unknown texture \""<<(i->name)<<"\""<<std::endl;
+       for(core::list<MediaRequest>::ConstIterator i = tosend.begin();
+                       i != tosend.end(); i++)
+       {
+               if(m_media.find(i->name) == m_media.end()){
+                       errorstream<<"Server::sendRequestedMedia(): Client asked for "
+                                       <<"unknown file \""<<(i->name)<<"\""<<std::endl;
                        continue;
                }
 
                //TODO get path + name
-               std::string tpath = m_Textures[(*i).name].path;
+               std::string tpath = m_media[(*i).name].path;
 
                // Read data
                std::ifstream fis(tpath.c_str(), std::ios_base::binary);
                if(fis.good() == false){
-                       errorstream<<"Server::SendTexturesRequested(): Could not open \""
+                       errorstream<<"Server::sendRequestedMedia(): Could not open \""
                                        <<tpath<<"\" for reading"<<std::endl;
                        continue;
                }
@@ -3927,7 +4231,7 @@ void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend
                        fis.read(buf, 1024);
                        std::streamsize len = fis.gcount();
                        tmp_os.write(buf, len);
-                       texture_size_bunch_total += len;
+                       file_size_bunch_total += len;
                        if(fis.eof())
                                break;
                        if(!fis.good()){
@@ -3936,107 +4240,155 @@ void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend
                        }
                }
                if(bad){
-                       errorstream<<"Server::SendTexturesRequested(): Failed to read \""
+                       errorstream<<"Server::sendRequestedMedia(): Failed to read \""
                                        <<(*i).name<<"\""<<std::endl;
                        continue;
                }
-               /*infostream<<"Server::SendTexturesRequested(): Loaded \""
+               /*infostream<<"Server::sendRequestedMedia(): Loaded \""
                                <<tname<<"\""<<std::endl;*/
                // Put in list
-               texture_bunches[texture_bunches.size()-1].push_back(
-                               SendableTexture((*i).name, tpath, tmp_os.str()));
+               file_bunches[file_bunches.size()-1].push_back(
+                               SendableMedia((*i).name, tpath, tmp_os.str()));
 
                // Start next bunch if got enough data
-               if(texture_size_bunch_total >= bytes_per_bunch){
-                       texture_bunches.push_back(core::list<SendableTexture>());
-                       texture_size_bunch_total = 0;
+               if(file_size_bunch_total >= bytes_per_bunch){
+                       file_bunches.push_back(core::list<SendableMedia>());
+                       file_size_bunch_total = 0;
                }
 
        }
 
        /* Create and send packets */
 
-               u32 num_bunches = texture_bunches.size();
-               for(u32 i=0; i<num_bunches; i++)
-               {
-                       /*
-                               u16 command
-                               u16 total number of texture bunches
-                               u16 index of this bunch
-                               u32 number of textures in this bunch
-                               for each texture {
-                                       u16 length of name
-                                       string name
-                                       u32 length of data
-                                       data
-                               }
-                       */
-                       std::ostringstream os(std::ios_base::binary);
-
-                       writeU16(os, TOCLIENT_TEXTURES);
-                       writeU16(os, num_bunches);
-                       writeU16(os, i);
-                       writeU32(os, texture_bunches[i].size());
+       u32 num_bunches = file_bunches.size();
+       for(u32 i=0; i<num_bunches; i++)
+       {
+               std::ostringstream os(std::ios_base::binary);
 
-                       for(core::list<SendableTexture>::Iterator
-                                       j = texture_bunches[i].begin();
-                                       j != texture_bunches[i].end(); j++){
-                               os<<serializeString(j->name);
-                               os<<serializeLongString(j->data);
+               /*
+                       u16 command
+                       u16 total number of texture bunches
+                       u16 index of this bunch
+                       u32 number of files in this bunch
+                       for each file {
+                               u16 length of name
+                               string name
+                               u32 length of data
+                               data
                        }
+               */
 
-                       // Make data buffer
-                       std::string s = os.str();
-                       infostream<<"Server::SendTexturesRequested(): bunch "<<i<<"/"<<num_bunches
-                                       <<" textures="<<texture_bunches[i].size()
-                                       <<" size=" <<s.size()<<std::endl;
-                       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
-                       // Send as reliable
-                       m_con.Send(peer_id, 0, data, true);
+               writeU16(os, TOCLIENT_MEDIA);
+               writeU16(os, num_bunches);
+               writeU16(os, i);
+               writeU32(os, file_bunches[i].size());
+
+               for(core::list<SendableMedia>::Iterator
+                               j = file_bunches[i].begin();
+                               j != file_bunches[i].end(); j++){
+                       os<<serializeString(j->name);
+                       os<<serializeLongString(j->data);
                }
 
+               // Make data buffer
+               std::string s = os.str();
+               verbosestream<<"Server::sendRequestedMedia(): bunch "
+                               <<i<<"/"<<num_bunches
+                               <<" files="<<file_bunches[i].size()
+                               <<" size=" <<s.size()<<std::endl;
+               SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+               // Send as reliable
+               m_con.Send(peer_id, 0, data, true);
+       }
+}
+
+void Server::sendDetachedInventory(const std::string &name, u16 peer_id)
+{
+       if(m_detached_inventories.count(name) == 0){
+               errorstream<<__FUNCTION_NAME<<": \""<<name<<"\" not found"<<std::endl;
+               return;
+       }
+       Inventory *inv = m_detached_inventories[name];
+
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_DETACHED_INVENTORY);
+       os<<serializeString(name);
+       inv->serialize(os);
+
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send as reliable
+       m_con.Send(peer_id, 0, data, true);
+}
+
+void Server::sendDetachedInventoryToAll(const std::string &name)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       for(core::map<u16, RemoteClient*>::Iterator
+                       i = m_clients.getIterator();
+                       i.atEnd() == false; i++){
+               RemoteClient *client = i.getNode()->getValue();
+               sendDetachedInventory(name, client->peer_id);
+       }
+}
 
+void Server::sendDetachedInventories(u16 peer_id)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       for(std::map<std::string, Inventory*>::iterator
+                       i = m_detached_inventories.begin();
+                       i != m_detached_inventories.end(); i++){
+               const std::string &name = i->first;
+               //Inventory *inv = i->second;
+               sendDetachedInventory(name, peer_id);
+       }
 }
 
 /*
        Something random
 */
 
-void Server::DiePlayer(Player *player)
+void Server::DiePlayer(u16 peer_id)
 {
-       ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
+       DSTACK(__FUNCTION_NAME);
+       
+       PlayerSAO *playersao = getPlayerSAO(peer_id);
+       assert(playersao);
 
        infostream<<"Server::DiePlayer(): Player "
-                       <<player->getName()<<" dies"<<std::endl;
-       
-       srp->setHP(0);
-       
+                       <<playersao->getPlayer()->getName()
+                       <<" dies"<<std::endl;
+
+       playersao->setHP(0);
+
        // Trigger scripted stuff
-       scriptapi_on_dieplayer(m_lua, srp);
-       
-       // Handle players that are not connected
-       if(player->peer_id == PEER_ID_INEXISTENT){
-               RespawnPlayer(player);
-               return;
-       }
+       scriptapi_on_dieplayer(m_lua, playersao);
 
-       SendPlayerHP(player);
-       SendDeathscreen(m_con, player->peer_id, false, v3f(0,0,0));
+       SendPlayerHP(peer_id);
+       SendDeathscreen(m_con, peer_id, false, v3f(0,0,0));
 }
 
-void Server::RespawnPlayer(Player *player)
+void Server::RespawnPlayer(u16 peer_id)
 {
-       ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
-       srp->setHP(20);
-       bool repositioned = scriptapi_on_respawnplayer(m_lua, srp);
+       DSTACK(__FUNCTION_NAME);
+
+       PlayerSAO *playersao = getPlayerSAO(peer_id);
+       assert(playersao);
+
+       infostream<<"Server::RespawnPlayer(): Player "
+                       <<playersao->getPlayer()->getName()
+                       <<" respawns"<<std::endl;
+
+       playersao->setHP(PLAYER_MAX_HP);
+
+       bool repositioned = scriptapi_on_respawnplayer(m_lua, playersao);
        if(!repositioned){
                v3f pos = findSpawnPos(m_env->getServerMap());
-               player->setPosition(pos);
-               srp->m_last_good_position = pos;
-               srp->m_last_good_position_age = 0;
+               playersao->setPos(pos);
        }
-       SendMovePlayer(player);
-       SendPlayerHP(player);
 }
 
 void Server::UpdateCrafting(u16 peer_id)
@@ -4048,9 +4400,7 @@ void Server::UpdateCrafting(u16 peer_id)
 
        // Get a preview for crafting
        ItemStack preview;
-       // No crafting in creative mode
-       if(g_settings->getBool("creative_mode") == false)
-               getCraftingResult(&player->inventory, preview, false, this);
+       getCraftingResult(&player->inventory, preview, false, this);
 
        // Put the new preview in
        InventoryList *plist = player->inventory.getList("craftpreview");
@@ -4079,9 +4429,10 @@ std::wstring Server::getStatusString()
        // Uptime
        os<<L", uptime="<<m_uptime.get();
        // Information about clients
+       core::map<u16, RemoteClient*>::Iterator i;
+       bool first;
        os<<L", clients={";
-       for(core::map<u16, RemoteClient*>::Iterator
-               i = m_clients.getIterator();
+       for(i = m_clients.getIterator(), first = true;
                i.atEnd() == false; i++)
        {
                // Get client and check that it is valid
@@ -4096,7 +4447,11 @@ std::wstring Server::getStatusString()
                if(player != NULL)
                        name = narrow_to_wide(player->getName());
                // Add name to information string
-               os<<name<<L",";
+               if(!first)
+                       os<<L",";
+               else
+                       first = false;
+               os<<name;
        }
        os<<L"}";
        if(((ServerMap*)(&m_env->getMap()))->isSavingEnabled() == false)
@@ -4106,20 +4461,49 @@ std::wstring Server::getStatusString()
        return os.str();
 }
 
-void Server::setPlayerPassword(const std::string &name, const std::wstring &password)
+std::set<std::string> Server::getPlayerEffectivePrivs(const std::string &name)
 {
-       // Add player to auth manager
-       if(m_authmanager.exists(name) == false)
-       {
-               infostream<<"Server: adding player "<<name
-                               <<" to auth manager"<<std::endl;
-               m_authmanager.add(name);
-               m_authmanager.setPrivs(name,
-                       stringToPrivs(g_settings->get("default_privs")));
+       std::set<std::string> privs;
+       scriptapi_get_auth(m_lua, name, NULL, &privs);
+       return privs;
+}
+
+bool Server::checkPriv(const std::string &name, const std::string &priv)
+{
+       std::set<std::string> privs = getPlayerEffectivePrivs(name);
+       return (privs.count(priv) != 0);
+}
+
+void Server::reportPrivsModified(const std::string &name)
+{
+       if(name == ""){
+               for(core::map<u16, RemoteClient*>::Iterator
+                               i = m_clients.getIterator();
+                               i.atEnd() == false; i++){
+                       RemoteClient *client = i.getNode()->getValue();
+                       Player *player = m_env->getPlayer(client->peer_id);
+                       reportPrivsModified(player->getName());
+               }
+       } else {
+               Player *player = m_env->getPlayer(name.c_str());
+               if(!player)
+                       return;
+               SendPlayerPrivileges(player->peer_id);
+               PlayerSAO *sao = player->getPlayerSAO();
+               if(!sao)
+                       return;
+               sao->updatePrivileges(
+                               getPlayerEffectivePrivs(name),
+                               isSingleplayer());
        }
-       // Change password and save
-       m_authmanager.setPassword(name, translatePassword(name, password));
-       m_authmanager.save();
+}
+
+void Server::reportInventoryFormspecModified(const std::string &name)
+{
+       Player *player = m_env->getPlayer(name.c_str());
+       if(!player)
+               return;
+       SendPlayerInventoryFormspec(player->peer_id);
 }
 
 // Saves g_settings to configpath given at initialization
@@ -4150,6 +4534,88 @@ void Server::queueBlockEmerge(v3s16 blockpos, bool allow_generate)
        m_emerge_queue.addBlock(PEER_ID_INEXISTENT, blockpos, flags);
 }
 
+Inventory* Server::createDetachedInventory(const std::string &name)
+{
+       if(m_detached_inventories.count(name) > 0){
+               infostream<<"Server clearing detached inventory \""<<name<<"\""<<std::endl;
+               delete m_detached_inventories[name];
+       } else {
+               infostream<<"Server creating detached inventory \""<<name<<"\""<<std::endl;
+       }
+       Inventory *inv = new Inventory(m_itemdef);
+       assert(inv);
+       m_detached_inventories[name] = inv;
+       sendDetachedInventoryToAll(name);
+       return inv;
+}
+
+class BoolScopeSet
+{
+public:
+       BoolScopeSet(bool *dst, bool val):
+               m_dst(dst)
+       {
+               m_orig_state = *m_dst;
+               *m_dst = val;
+       }
+       ~BoolScopeSet()
+       {
+               *m_dst = m_orig_state;
+       }
+private:
+       bool *m_dst;
+       bool m_orig_state;
+};
+
+// actions: time-reversed list
+// Return value: success/failure
+bool Server::rollbackRevertActions(const std::list<RollbackAction> &actions,
+               std::list<std::string> *log)
+{
+       infostream<<"Server::rollbackRevertActions(len="<<actions.size()<<")"<<std::endl;
+       ServerMap *map = (ServerMap*)(&m_env->getMap());
+       // Disable rollback report sink while reverting
+       BoolScopeSet rollback_scope_disable(&m_rollback_sink_enabled, false);
+       
+       // Fail if no actions to handle
+       if(actions.empty()){
+               log->push_back("Nothing to do.");
+               return false;
+       }
+
+       int num_tried = 0;
+       int num_failed = 0;
+       
+       for(std::list<RollbackAction>::const_iterator
+                       i = actions.begin();
+                       i != actions.end(); i++)
+       {
+               const RollbackAction &action = *i;
+               num_tried++;
+               bool success = action.applyRevert(map, this, this);
+               if(!success){
+                       num_failed++;
+                       std::ostringstream os;
+                       os<<"Revert of step ("<<num_tried<<") "<<action.toString()<<" failed";
+                       infostream<<"Map::rollbackRevertActions(): "<<os.str()<<std::endl;
+                       if(log)
+                               log->push_back(os.str());
+               }else{
+                       std::ostringstream os;
+                       os<<"Succesfully reverted step ("<<num_tried<<") "<<action.toString();
+                       infostream<<"Map::rollbackRevertActions(): "<<os.str()<<std::endl;
+                       if(log)
+                               log->push_back(os.str());
+               }
+       }
+       
+       infostream<<"Map::rollbackRevertActions(): "<<num_failed<<"/"<<num_tried
+                       <<" failed"<<std::endl;
+
+       // Call it done if less than half failed
+       return num_failed <= num_tried/2;
+}
+
 // IGameDef interface
 // Under envlock
 IItemDefManager* Server::getItemDefManager()
@@ -4172,6 +4638,22 @@ u16 Server::allocateUnknownNodeId(const std::string &name)
 {
        return m_nodedef->allocateDummy(name);
 }
+ISoundManager* Server::getSoundManager()
+{
+       return &dummySoundManager;
+}
+MtEventManager* Server::getEventManager()
+{
+       return m_event;
+}
+IRollbackReportSink* Server::getRollbackReportSink()
+{
+       if(!m_enable_rollback_recording)
+               return NULL;
+       if(!m_rollback_sink_enabled)
+               return NULL;
+       return m_rollback;
+}
 
 IWritableItemDefManager* Server::getWritableItemDefManager()
 {
@@ -4196,6 +4678,17 @@ const ModSpec* Server::getModSpec(const std::string &modname)
        }
        return NULL;
 }
+void Server::getModNames(core::list<std::string> &modlist)
+{
+       for(core::list<ModSpec>::Iterator i = m_mods.begin(); i != m_mods.end(); i++)
+       {
+               modlist.push_back((*i).name);
+       }
+}
+std::string Server::getBuiltinLuaPath()
+{
+       return porting::path_share + DIR_DELIM + "builtin";
+}
 
 v3f findSpawnPos(ServerMap &map)
 {
@@ -4260,46 +4753,21 @@ v3f findSpawnPos(ServerMap &map)
        return intToFloat(nodepos, BS);
 }
 
-ServerRemotePlayer *Server::emergePlayer(const char *name, u16 peer_id)
+PlayerSAO* Server::emergePlayer(const char *name, u16 peer_id)
 {
+       RemotePlayer *player = NULL;
+       bool newplayer = false;
+
        /*
                Try to get an existing player
        */
-       ServerRemotePlayer *player =
-                       static_cast<ServerRemotePlayer*>(m_env->getPlayer(name));
-       if(player != NULL)
-       {
-               // If player is already connected, cancel
-               if(player->peer_id != 0)
-               {
-                       infostream<<"emergePlayer(): Player already connected"<<std::endl;
-                       return NULL;
-               }
-
-               // Got one.
-               player->peer_id = peer_id;
-               
-               // Re-add player to environment
-               if(player->m_removed)
-               {
-                       player->m_removed = false;
-                       player->setId(0);
-                       m_env->addActiveObject(player);
-               }
+       player = static_cast<RemotePlayer*>(m_env->getPlayer(name));
 
-               // Reset inventory to creative if in creative mode
-               if(g_settings->getBool("creative_mode"))
-               {
-                       // Warning: double code below
-                       // Backup actual inventory
-                       player->inventory_backup = new Inventory(m_itemdef);
-                       *(player->inventory_backup) = player->inventory;
-                       // Set creative inventory
-                       player->resetInventory();
-                       scriptapi_get_creative_inventory(m_lua, player);
-               }
-
-               return player;
+       // If player is already connected, cancel
+       if(player != NULL && player->peer_id != 0)
+       {
+               infostream<<"emergePlayer(): Player already connected"<<std::endl;
+               return NULL;
        }
 
        /*
@@ -4311,43 +4779,43 @@ ServerRemotePlayer *Server::emergePlayer(const char *name, u16 peer_id)
                                " peer_id already exists"<<std::endl;
                return NULL;
        }
-       
+
        /*
-               Create a new player
+               Create a new player if it doesn't exist yet
        */
+       if(player == NULL)
        {
+               newplayer = true;
+               player = new RemotePlayer(this);
+               player->updateName(name);
+
                /* Set player position */
-               
                infostream<<"Server: Finding spawn place for player \""
                                <<name<<"\""<<std::endl;
-
                v3f pos = findSpawnPos(m_env->getServerMap());
-
-               player = new ServerRemotePlayer(m_env, pos, peer_id, name);
-               ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
+               player->setPosition(pos);
 
                /* Add player to environment */
                m_env->addPlayer(player);
-               m_env->addActiveObject(srp);
+       }
 
-               /* Run scripts */
-               scriptapi_on_newplayer(m_lua, srp);
+       /*
+               Create a new player active object
+       */
+       PlayerSAO *playersao = new PlayerSAO(m_env, player, peer_id,
+                       getPlayerEffectivePrivs(player->getName()),
+                       isSingleplayer());
 
-               /* Add stuff to inventory */
-               if(g_settings->getBool("creative_mode"))
-               {
-                       // Warning: double code above
-                       // Backup actual inventory
-                       player->inventory_backup = new Inventory(m_itemdef);
-                       *(player->inventory_backup) = player->inventory;
-                       // Set creative inventory
-                       player->resetInventory();
-                       scriptapi_get_creative_inventory(m_lua, player);
-               }
+       /* Add object to environment */
+       m_env->addActiveObject(playersao);
 
-               return player;
-               
-       } // create new player
+       /* Run scripts */
+       if(newplayer)
+               scriptapi_on_newplayer(m_lua, playersao);
+
+       scriptapi_on_joinplayer(m_lua, playersao);
+
+       return playersao;
 }
 
 void Server::handlePeerChange(PeerChange &c)
@@ -4402,8 +4870,22 @@ void Server::handlePeerChange(PeerChange &c)
                                obj->m_known_by_count--;
                }
 
-               ServerRemotePlayer* player =
-                               static_cast<ServerRemotePlayer*>(m_env->getPlayer(c.peer_id));
+               /*
+                       Clear references to playing sounds
+               */
+               for(std::map<s32, ServerPlayingSound>::iterator
+                               i = m_playing_sounds.begin();
+                               i != m_playing_sounds.end();)
+               {
+                       ServerPlayingSound &psound = i->second;
+                       psound.clients.erase(c.peer_id);
+                       if(psound.clients.size() == 0)
+                               m_playing_sounds.erase(i++);
+                       else
+                               i++;
+               }
+
+               Player *player = m_env->getPlayer(c.peer_id);
 
                // Collect information about leaving in chat
                std::wstring message;
@@ -4413,20 +4895,25 @@ void Server::handlePeerChange(PeerChange &c)
                                std::wstring name = narrow_to_wide(player->getName());
                                message += L"*** ";
                                message += name;
-                               message += L" left game";
+                               message += L" left the game.";
                                if(c.timeout)
                                        message += L" (timed out)";
                        }
                }
                
-               // Remove from environment
-               if(player != NULL)
-                       player->m_removed = true;
-               
-               // Set player client disconnected
-               if(player != NULL)
-                       player->peer_id = 0;
-       
+               /* Run scripts and remove from environment */
+               {
+                       if(player != NULL)
+                       {
+                               PlayerSAO *playersao = player->getPlayerSAO();
+                               assert(playersao);
+
+                               scriptapi_on_leaveplayer(m_lua, playersao);
+
+                               playersao->disconnected();
+                       }
+               }
+
                /*
                        Print out action
                */
@@ -4481,7 +4968,7 @@ void Server::handlePeerChanges()
        {
                PeerChange c = m_peer_change_queue.pop_front();
 
-               infostream<<"Server: Handling peer change: "
+               verbosestream<<"Server: Handling peer change: "
                                <<"id="<<c.peer_id<<", timeout="<<c.timeout
                                <<std::endl;
 
@@ -4489,32 +4976,11 @@ void Server::handlePeerChanges()
        }
 }
 
-u64 Server::getPlayerPrivs(Player *player)
-{
-       if(player==NULL)
-               return 0;
-       std::string playername = player->getName();
-       // Local player gets all privileges regardless of
-       // what's set on their account.
-       if(g_settings->get("name") == playername)
-       {
-               return PRIV_ALL;
-       }
-       else
-       {
-               return getPlayerAuthPrivs(playername);
-       }
-}
-
 void dedicated_server_loop(Server &server, bool &kill)
 {
        DSTACK(__FUNCTION_NAME);
        
-       infostream<<DTIME<<std::endl;
-       infostream<<"========================"<<std::endl;
-       infostream<<"Running dedicated server"<<std::endl;
-       infostream<<"========================"<<std::endl;
-       infostream<<std::endl;
+       verbosestream<<"dedicated_server_loop()"<<std::endl;
 
        IntervalLimiter m_profiler_interval;
 
@@ -4531,7 +4997,7 @@ void dedicated_server_loop(Server &server, bool &kill)
 
                if(server.getShutdownRequested() || kill)
                {
-                       infostream<<DTIME<<" dedicated_server_loop(): Quitting."<<std::endl;
+                       infostream<<"Dedicated server quitting"<<std::endl;
                        break;
                }
 
@@ -4549,30 +5015,6 @@ void dedicated_server_loop(Server &server, bool &kill)
                                g_profiler->clear();
                        }
                }
-               
-               /*
-                       Player info
-               */
-               static int counter = 0;
-               counter--;
-               if(counter <= 0)
-               {
-                       counter = 10;
-
-                       core::list<PlayerInfo> list = server.getPlayerInfo();
-                       core::list<PlayerInfo>::Iterator i;
-                       static u32 sum_old = 0;
-                       u32 sum = PIChecksum(list);
-                       if(sum != sum_old)
-                       {
-                               infostream<<DTIME<<"Player info:"<<std::endl;
-                               for(i=list.begin(); i!=list.end(); i++)
-                               {
-                                       i->PrintLine(&infostream);
-                               }
-                       }
-                       sum_old = sum;
-               }
        }
 }