Add set_breath and get_breath to lua API.
[oweals/minetest.git] / src / server.cpp
index f77ac6ad94906c1af98d1d3abb77484cb5f7940e..3bba193da5365c903a4d297d9ee9afba6a669369 100644 (file)
@@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "server.h"
 #include <iostream>
 #include <queue>
+#include <algorithm>
 #include "clientserver.h"
 #include "map.h"
 #include "jmutexautolock.h"
@@ -33,8 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "settings.h"
 #include "profiler.h"
 #include "log.h"
-#include "script.h"
-#include "scriptapi.h"
+#include "script/cpp_api/scriptapi.h"
 #include "nodedef.h"
 #include "itemdef.h"
 #include "craftdef.h"
@@ -639,20 +639,19 @@ Server::Server(
        m_simple_singleplayer_mode(simple_singleplayer_mode),
        m_async_fatal_error(""),
        m_env(NULL),
-       m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
+       m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT,
+             g_settings->getBool("enable_ipv6") && g_settings->getBool("ipv6_server"), this),
        m_banmanager(path_world+DIR_DELIM+"ipban.txt"),
        m_rollback(NULL),
        m_rollback_sink_enabled(true),
        m_enable_rollback_recording(false),
        m_emerge(NULL),
-       m_biomedef(NULL),
-       m_lua(NULL),
+       m_script(NULL),
        m_itemdef(createItemDefManager()),
        m_nodedef(createNodeDefManager()),
        m_craftdef(createCraftDefManager()),
        m_event(new EventManager()),
        m_thread(this),
-       //m_emergethread(this),
        m_time_of_day_send_timer(0),
        m_uptime(0),
        m_shutdown_requested(false),
@@ -694,10 +693,10 @@ Server::Server(
        Settings gamedefaults;
        getGameMinetestConfig(gamespec.path, gamedefaults);
        override_default_settings(g_settings, &gamedefaults);
-
-       // Create biome definition manager
-       m_biomedef = new BiomeDefManager(this);
-
+       
+       // Create emerge manager
+       m_emerge = new EmergeManager(this);
+       
        // Create rollback manager
        std::string rollback_path = m_path_world+DIR_DELIM+"rollback.txt";
        m_rollback = createRollbackManager(rollback_path, this);
@@ -708,11 +707,11 @@ Server::Server(
 
        ModConfiguration modconf(m_path_world);
        m_mods = modconf.getMods();
-       std::list<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
+       std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
        // complain about mods with unsatisfied dependencies
        if(!modconf.isConsistent())     
        {
-               for(std::list<ModSpec>::iterator it = unsatisfied_mods.begin();
+               for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
                        it != unsatisfied_mods.end(); ++it)
                {
                        ModSpec mod = *it;
@@ -728,25 +727,19 @@ Server::Server(
        std::string worldmt = m_path_world + DIR_DELIM + "world.mt";
        worldmt_settings.readConfigFile(worldmt.c_str());
        std::vector<std::string> names = worldmt_settings.getNames();
-       std::set<std::string> exclude_mod_names;
        std::set<std::string> load_mod_names;
        for(std::vector<std::string>::iterator it = names.begin(); 
                it != names.end(); ++it)
        {       
                std::string name = *it;  
-               if (name.compare(0,9,"load_mod_")==0)
-               {
-                       if(worldmt_settings.getBool(name))
-                               load_mod_names.insert(name.substr(9));
-                       else                    
-                               exclude_mod_names.insert(name.substr(9));
-               }
+               if(name.compare(0,9,"load_mod_")==0 && worldmt_settings.getBool(name))
+                       load_mod_names.insert(name.substr(9));
        }
        // complain about mods declared to be loaded, but not found
        for(std::vector<ModSpec>::iterator it = m_mods.begin();
                        it != m_mods.end(); ++it)
                load_mod_names.erase((*it).name);
-       for(std::list<ModSpec>::iterator it = unsatisfied_mods.begin();
+       for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
                        it != unsatisfied_mods.end(); ++it)
                load_mod_names.erase((*it).name);
        if(!load_mod_names.empty())
@@ -768,14 +761,14 @@ Server::Server(
        // Initialize scripting
 
        infostream<<"Server: Initializing Lua"<<std::endl;
-       m_lua = script_init();
-       assert(m_lua);
-       // Export API
-       scriptapi_export(m_lua, this);
+
+       m_script = new ScriptApi(this);
+
+
        // Load and run builtin.lua
        infostream<<"Server: Loading builtin.lua [\""
                        <<builtinpath<<"\"]"<<std::endl;
-       bool success = scriptapi_loadmod(m_lua, builtinpath, "__builtin");
+       bool success = m_script->loadMod(builtinpath, "__builtin");
        if(!success){
                errorstream<<"Server: Failed to load and run "
                                <<builtinpath<<std::endl;
@@ -796,7 +789,7 @@ Server::Server(
                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);
+               bool success = m_script->loadMod(scriptpath, mod.name);
                if(!success){
                        errorstream<<"Server: Failed to load and run "
                                        <<scriptpath<<std::endl;
@@ -810,20 +803,19 @@ Server::Server(
        // Apply item aliases in the node definition manager
        m_nodedef->updateAliases(m_itemdef);
 
-       // Add default biomes after nodedef had its aliases added
-       m_biomedef->addDefaultBiomes();
-
-       // Create emerge manager
-       m_emerge = new EmergeManager(this, m_biomedef);
-
        // Initialize Environment
        ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
-       m_env = new ServerEnvironment(servermap, m_lua, this, this);
+       m_env = new ServerEnvironment(servermap, m_script, this, this);
        
-       m_emerge->initMapgens(servermap->getMapgenParams());
+       // Run some callbacks after the MG params have been set up but before activation
+       MapgenParams *mgparams = servermap->getMapgenParams();
+       m_script->environment_OnMapgenInit(mgparams);
+       
+       // Initialize mapgens
+       m_emerge->initMapgens(mgparams);
 
        // Give environment reference to scripting api
-       scriptapi_add_environment(m_lua, m_env);
+       m_script->initializeEnvironment(m_env);
 
        // Register us to receive map edit events
        servermap->addEventReceiver(this);
@@ -887,7 +879,7 @@ Server::~Server()
                /*
                        Execute script shutdown hooks
                */
-               scriptapi_on_shutdown(m_lua);
+               m_script->on_shutdown();
        }
 
        {
@@ -911,6 +903,9 @@ Server::~Server()
        */
        stop();
 
+       //shutdown all emerge threads first!
+       delete m_emerge;
+
        /*
                Delete clients
        */
@@ -930,7 +925,6 @@ Server::~Server()
        // Delete things in the reverse order of creation
        delete m_env;
        delete m_rollback;
-       delete m_emerge;
        delete m_event;
        delete m_itemdef;
        delete m_nodedef;
@@ -938,7 +932,7 @@ Server::~Server()
 
        // Deinitialize scripting
        infostream<<"Server: Deinitializing scripting"<<std::endl;
-       script_deinit(m_lua);
+       delete m_script;
 
        // Delete detached inventories
        {
@@ -1145,6 +1139,13 @@ void Server::AsyncRunStep()
                                        SendPlayerHP(client->peer_id);
                        }
 
+                       /*
+                               Send player breath if changed
+                       */
+                       if(playersao->m_breath_not_sent){
+                               SendPlayerBreath(client->peer_id);
+                       }
+
                        /*
                                Send player inventories if necessary
                        */
@@ -1243,7 +1244,7 @@ void Server::AsyncRunStep()
                float &counter = m_masterserver_timer;
                if((!counter || counter >= 300.0) && g_settings->getBool("server_announce") == true)
                {
-                       ServerList::sendAnnounce(!counter ? "start" : "update", m_clients_number);
+                       ServerList::sendAnnounce(!counter ? "start" : "update", m_clients_number, m_uptime.get(), m_gamespec.id, m_mods);
                        counter = 0.01;
                }
                counter += dtime;
@@ -1928,6 +1929,15 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        return;
                }
 
+               if(!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0)
+               {
+                       actionstream<<"Server: Player with an invalid name "
+                                       <<"tried to connect from "<<addr_s<<std::endl;
+                       SendAccessDenied(m_con, peer_id,
+                                       L"Name is not allowed");
+                       return;
+               }
+
                infostream<<"Server: New connection: \""<<playername<<"\" from "
                                <<m_con.GetPeerAddress(peer_id).serializeString()<<std::endl;
 
@@ -1955,7 +1965,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                }
 
                std::string checkpwd; // Password hash to check against
-               bool has_auth = scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
+               bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
 
                // If no authentication info exists for user, create it
                if(!has_auth){
@@ -1975,10 +1985,10 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        if (raw_default_password.length() == 0)
                                initial_password = given_password;
 
-                       scriptapi_create_auth(m_lua, playername, initial_password);
+                       m_script->createAuth(playername, initial_password);
                }
 
-               has_auth = scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
+               has_auth = m_script->getAuth(playername, &checkpwd, NULL);
 
                if(!has_auth){
                        SendAccessDenied(m_con, peer_id, L"Not allowed to login");
@@ -2080,7 +2090,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                SendMovement(m_con, peer_id);
 
                // Send item definitions
-               SendItemDef(m_con, peer_id, m_itemdef);
+               SendItemDef(m_con, peer_id, m_itemdef, client->net_proto_version);
 
                // Send node definitions
                SendNodeDef(m_con, peer_id, m_nodedef, client->net_proto_version);
@@ -2102,6 +2112,9 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                if(g_settings->getBool("enable_damage"))
                        SendPlayerHP(peer_id);
 
+               // Send Breath
+               SendPlayerBreath(peer_id);
+
                // Send detached inventories
                sendDetachedInventories(peer_id);
 
@@ -2165,7 +2178,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                os<<player->getName()<<" ";
                        }
 
-                       actionstream<<player->getName()<<" joins game. List of players: "
+                       actionstream<<player->getName()<<" ["<<addr_s<<"] "<<" joins game. List of players: "
                                        <<os.str()<<std::endl;
                }
 
@@ -2413,6 +2426,18 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 
                        setInventoryModified(da->from_inv);
 
+                       /*
+                               Disable dropping items out of craftpreview
+                       */
+                       if(da->from_list == "craftpreview")
+                       {
+                               infostream<<"Ignoring IDropAction from "
+                                               <<(da->from_inv.dump())<<":"<<da->from_list
+                                               <<" because src is "<<da->from_list<<std::endl;
+                               delete a;
+                               return;
+                       }
+
                        // Disallow dropping items if not allowed to interact
                        if(!checkPriv(player->getName(), "interact"))
                        {
@@ -2480,7 +2505,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                std::wstring name = narrow_to_wide(player->getName());
 
                // Run script hook
-               bool ate = scriptapi_on_chat_message(m_lua, player->getName(),
+               bool ate = m_script->on_chat_message(player->getName(),
                                wide_to_narrow(message));
                // If script ate the message, don't proceed
                if(ate)
@@ -2568,6 +2593,13 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                SendPlayerHP(peer_id);
                }
        }
+       else if(command == TOSERVER_BREATH)
+       {
+               std::string datastring((char*)&data[2], datasize-2);
+               std::istringstream is(datastring, std::ios_base::binary);
+               u16 breath = readU16(is);
+               playersao->setBreath(breath);
+       }
        else if(command == TOSERVER_PASSWORD)
        {
                /*
@@ -2612,7 +2644,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                std::string playername = player->getName();
 
                std::string checkpwd;
-               scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
+               m_script->getAuth(playername, &checkpwd, NULL);
 
                if(oldpwd != checkpwd)
                {
@@ -2622,7 +2654,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        return;
                }
 
-               bool success = scriptapi_set_password(m_lua, playername, newpwd);
+               bool success = m_script->setPassword(playername, newpwd);
                if(success){
                        actionstream<<player->getName()<<" changes password"<<std::endl;
                        SendChatMessage(peer_id, L"Password change successful.");
@@ -2826,7 +2858,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                        m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
                                }
                                if(n.getContent() != CONTENT_IGNORE)
-                                       scriptapi_node_on_punch(m_lua, p_under, n, playersao);
+                                       m_script->node_on_punch(p_under, n, playersao);
                                // Cheat prevention
                                playersao->noCheatDigStart(p_under);
                        }
@@ -2936,7 +2968,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                /* Actually dig node */
 
                                if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
-                                       scriptapi_node_on_dig(m_lua, p_under, n, playersao);
+                                       m_script->node_on_dig(p_under, n, playersao);
 
                                // Send unusual result (that is, node not being removed)
                                if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR)
@@ -2976,7 +3008,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                // Do stuff
                                pointed_object->rightClick(playersao);
                        }
-                       else if(scriptapi_item_on_place(m_lua,
+                       else if(m_script->item_OnPlace(
                                        item, playersao, pointed))
                        {
                                // Placement was handled in lua
@@ -2985,12 +3017,16 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                                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 has node placement prediction, always send the
+                       // blocks 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);
+                               v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+                               if(blockpos2 != blockpos){
+                                       client->SetBlockNotSent(blockpos2);
+                               }
                        }
                } // action == 3
 
@@ -3004,7 +3040,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        actionstream<<player->getName()<<" uses "<<item.name
                                        <<", pointing at "<<pointed.dump()<<std::endl;
 
-                       if(scriptapi_item_on_use(m_lua,
+                       if(m_script->item_OnUse(
                                        item, playersao, pointed))
                        {
                                // Apply returned ItemStack
@@ -3063,8 +3099,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                // 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);
+               m_script->node_on_receive_fields(p, formname, fields,playersao);
 
                // Report rollback data
                RollbackNode rn_new(&m_env->getMap(), p, this);
@@ -3088,7 +3123,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
                        fields[fieldname] = fieldvalue;
                }
 
-               scriptapi_on_player_receive_fields(m_lua, playersao, formname, fields);
+               m_script->on_playerReceiveFields(playersao, formname, fields);
        }
        else
        {
@@ -3195,46 +3230,46 @@ void Server::setInventoryModified(const InventoryLocation &loc)
        }
 }
 
-std::list<PlayerInfo> Server::getPlayerInfo()
-{
-       DSTACK(__FUNCTION_NAME);
-       JMutexAutoLock envlock(m_env_mutex);
-       JMutexAutoLock conlock(m_con_mutex);
-
-       std::list<PlayerInfo> list;
-
-       std::list<Player*> players = m_env->getPlayers();
-
-       std::list<Player*>::iterator i;
-       for(i = players.begin();
-                       i != players.end(); ++i)
-       {
-               PlayerInfo info;
-
-               Player *player = *i;
-
-               try{
-                       // Copy info from connection to info struct
-                       info.id = player->peer_id;
-                       info.address = m_con.GetPeerAddress(player->peer_id);
-                       info.avg_rtt = m_con.GetPeerAvgRTT(player->peer_id);
-               }
-               catch(con::PeerNotFoundException &e)
-               {
-                       // Set dummy peer info
-                       info.id = 0;
-                       info.address = Address(0,0,0,0,0);
-                       info.avg_rtt = 0.0;
-               }
-
-               snprintf(info.name, PLAYERNAME_SIZE, "%s", player->getName());
-               info.position = player->getPosition();
-
-               list.push_back(info);
-       }
-
-       return list;
-}
+//std::list<PlayerInfo> Server::getPlayerInfo()
+//{
+//     DSTACK(__FUNCTION_NAME);
+//     JMutexAutoLock envlock(m_env_mutex);
+//     JMutexAutoLock conlock(m_con_mutex);
+//
+//     std::list<PlayerInfo> list;
+//
+//     std::list<Player*> players = m_env->getPlayers();
+//
+//     std::list<Player*>::iterator i;
+//     for(i = players.begin();
+//                     i != players.end(); ++i)
+//     {
+//             PlayerInfo info;
+//
+//             Player *player = *i;
+//
+//             try{
+//                     // Copy info from connection to info struct
+//                     info.id = player->peer_id;
+//                     info.address = m_con.GetPeerAddress(player->peer_id);
+//                     info.avg_rtt = m_con.GetPeerAvgRTT(player->peer_id);
+//             }
+//             catch(con::PeerNotFoundException &e)
+//             {
+//                     // Set dummy peer info
+//                     info.id = 0;
+//                     info.address = Address(0,0,0,0,0);
+//                     info.avg_rtt = 0.0;
+//             }
+//
+//             snprintf(info.name, PLAYERNAME_SIZE, "%s", player->getName());
+//             info.position = player->getPosition();
+//
+//             list.push_back(info);
+//     }
+//
+//     return list;
+//}
 
 
 void Server::peerAdded(con::Peer *peer)
@@ -3308,6 +3343,21 @@ void Server::SendHP(con::Connection &con, u16 peer_id, u8 hp)
        con.Send(peer_id, 0, data, true);
 }
 
+void Server::SendBreath(con::Connection &con, u16 peer_id, u16 breath)
+{
+       DSTACK(__FUNCTION_NAME);
+       std::ostringstream os(std::ios_base::binary);
+
+       writeU16(os, TOCLIENT_BREATH);
+       writeU16(os, breath);
+
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send as reliable
+       con.Send(peer_id, 0, data, true);
+}
+
 void Server::SendAccessDenied(con::Connection &con, u16 peer_id,
                const std::wstring &reason)
 {
@@ -3342,7 +3392,7 @@ void Server::SendDeathscreen(con::Connection &con, u16 peer_id,
 }
 
 void Server::SendItemDef(con::Connection &con, u16 peer_id,
-               IItemDefManager *itemdef)
+               IItemDefManager *itemdef, u16 protocol_version)
 {
        DSTACK(__FUNCTION_NAME);
        std::ostringstream os(std::ios_base::binary);
@@ -3354,7 +3404,7 @@ void Server::SendItemDef(con::Connection &con, u16 peer_id,
        */
        writeU16(os, TOCLIENT_ITEMDEF);
        std::ostringstream tmp_os(std::ios::binary);
-       itemdef->serialize(tmp_os);
+       itemdef->serialize(tmp_os, protocol_version);
        std::ostringstream tmp_os2(std::ios::binary);
        compressZlib(tmp_os.str(), tmp_os2);
        os<<serializeLongString(tmp_os2.str());
@@ -3454,7 +3504,9 @@ void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
        // Send as reliable
        m_con.Send(peer_id, 0, data, true);
 }
-void Server::SendShowFormspecMessage(u16 peer_id, const std::string formspec, const std::string formname)
+
+void Server::SendShowFormspecMessage(u16 peer_id, const std::string formspec,
+                                       const std::string formname)
 {
        DSTACK(__FUNCTION_NAME);
 
@@ -3474,6 +3526,242 @@ void Server::SendShowFormspecMessage(u16 peer_id, const std::string formspec, co
        m_con.Send(peer_id, 0, data, true);
 }
 
+// Spawns a particle on peer with peer_id
+void Server::SendSpawnParticle(u16 peer_id, v3f pos, v3f velocity, v3f acceleration,
+                               float expirationtime, float size, bool collisiondetection,
+                               std::string texture)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_SPAWN_PARTICLE);
+       writeV3F1000(os, pos);
+       writeV3F1000(os, velocity);
+       writeV3F1000(os, acceleration);
+       writeF1000(os, expirationtime);
+       writeF1000(os, size);
+       writeU8(os,  collisiondetection);
+       os<<serializeLongString(texture);
+
+       // 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);
+}
+
+// Spawns a particle on all peers
+void Server::SendSpawnParticleAll(v3f pos, v3f velocity, v3f acceleration,
+                               float expirationtime, float size, bool collisiondetection,
+                               std::string texture)
+{
+       for(std::map<u16, RemoteClient*>::iterator
+               i = m_clients.begin();
+               i != m_clients.end(); i++)
+       {
+               // Get client and check that it is valid
+               RemoteClient *client = i->second;
+               assert(client->peer_id == i->first);
+               if(client->serialization_version == SER_FMT_VER_INVALID)
+                       continue;
+
+               SendSpawnParticle(client->peer_id, pos, velocity, acceleration,
+                       expirationtime, size, collisiondetection, texture);
+       }
+}
+
+// Adds a ParticleSpawner on peer with peer_id
+void Server::SendAddParticleSpawner(u16 peer_id, u16 amount, float spawntime, v3f minpos, v3f maxpos,
+       v3f minvel, v3f maxvel, v3f minacc, v3f maxacc, float minexptime, float maxexptime,
+       float minsize, float maxsize, bool collisiondetection, std::string texture, u32 id)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_ADD_PARTICLESPAWNER);
+
+       writeU16(os, amount);
+       writeF1000(os, spawntime);
+       writeV3F1000(os, minpos);
+       writeV3F1000(os, maxpos);
+       writeV3F1000(os, minvel);
+       writeV3F1000(os, maxvel);
+       writeV3F1000(os, minacc);
+       writeV3F1000(os, maxacc);
+       writeF1000(os, minexptime);
+       writeF1000(os, maxexptime);
+       writeF1000(os, minsize);
+       writeF1000(os, maxsize);
+       writeU8(os,  collisiondetection);
+       os<<serializeLongString(texture);
+       writeU32(os, id);
+
+       // 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);
+}
+
+// Adds a ParticleSpawner on all peers
+void Server::SendAddParticleSpawnerAll(u16 amount, float spawntime, v3f minpos, v3f maxpos,
+       v3f minvel, v3f maxvel, v3f minacc, v3f maxacc, float minexptime, float maxexptime,
+       float minsize, float maxsize, bool collisiondetection, std::string texture, u32 id)
+{
+       for(std::map<u16, RemoteClient*>::iterator
+               i = m_clients.begin();
+               i != m_clients.end(); i++)
+       {
+               // Get client and check that it is valid
+               RemoteClient *client = i->second;
+               assert(client->peer_id == i->first);
+               if(client->serialization_version == SER_FMT_VER_INVALID)
+                       continue;
+
+               SendAddParticleSpawner(client->peer_id, amount, spawntime,
+                       minpos, maxpos, minvel, maxvel, minacc, maxacc,
+                       minexptime, maxexptime, minsize, maxsize, collisiondetection, texture, id);
+       }
+}
+
+void Server::SendDeleteParticleSpawner(u16 peer_id, u32 id)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOCLIENT_DELETE_PARTICLESPAWNER);
+
+       writeU16(os, id);
+
+       // 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::SendDeleteParticleSpawnerAll(u32 id)
+{
+       for(std::map<u16, RemoteClient*>::iterator
+               i = m_clients.begin();
+               i != m_clients.end(); i++)
+       {
+               // Get client and check that it is valid
+               RemoteClient *client = i->second;
+               assert(client->peer_id == i->first);
+               if(client->serialization_version == SER_FMT_VER_INVALID)
+                       continue;
+
+               SendDeleteParticleSpawner(client->peer_id, id);
+       }
+}
+
+void Server::SendHUDAdd(u16 peer_id, u32 id, HudElement *form)
+{
+       std::ostringstream os(std::ios_base::binary);
+
+       // Write command
+       writeU16(os, TOCLIENT_HUDADD);
+       writeU32(os, id);
+       writeU8(os, (u8)form->type);
+       writeV2F1000(os, form->pos);
+       os << serializeString(form->name);
+       writeV2F1000(os, form->scale);
+       os << serializeString(form->text);
+       writeU32(os, form->number);
+       writeU32(os, form->item);
+       writeU32(os, form->dir);
+       writeV2F1000(os, form->align);
+       writeV2F1000(os, form->offset);
+
+       // 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::SendHUDRemove(u16 peer_id, u32 id)
+{
+       std::ostringstream os(std::ios_base::binary);
+
+       // Write command
+       writeU16(os, TOCLIENT_HUDRM);
+       writeU32(os, id);
+
+       // 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::SendHUDChange(u16 peer_id, u32 id, HudElementStat stat, void *value)
+{
+       std::ostringstream os(std::ios_base::binary);
+
+       // Write command
+       writeU16(os, TOCLIENT_HUDCHANGE);
+       writeU32(os, id);
+       writeU8(os, (u8)stat);
+       switch (stat) {
+               case HUD_STAT_POS:
+               case HUD_STAT_SCALE:
+               case HUD_STAT_ALIGN:
+               case HUD_STAT_OFFSET:
+                       writeV2F1000(os, *(v2f *)value);
+                       break;
+               case HUD_STAT_NAME:
+               case HUD_STAT_TEXT:
+                       os << serializeString(*(std::string *)value);
+                       break;
+               case HUD_STAT_NUMBER:
+               case HUD_STAT_ITEM:
+               case HUD_STAT_DIR:
+               default:
+                       writeU32(os, *(u32 *)value);
+                       break;
+       }
+
+       // 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::SendHUDSetFlags(u16 peer_id, u32 flags, u32 mask)
+{
+       std::ostringstream os(std::ios_base::binary);
+
+       // Write command
+       writeU16(os, TOCLIENT_HUD_SET_FLAGS);
+       writeU32(os, flags);
+       writeU32(os, mask);
+
+       // 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::SendHUDSetParam(u16 peer_id, u16 param, const std::string &value)
+{
+       std::ostringstream os(std::ios_base::binary);
+
+       // Write command
+       writeU16(os, TOCLIENT_HUD_SET_PARAM);
+       writeU16(os, param);
+       os<<serializeString(value);
+
+       // 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::BroadcastChatMessage(const std::wstring &message)
 {
        for(std::map<u16, RemoteClient*>::iterator
@@ -3499,6 +3787,15 @@ void Server::SendPlayerHP(u16 peer_id)
        SendHP(m_con, peer_id, playersao->getHP());
 }
 
+void Server::SendPlayerBreath(u16 peer_id)
+{
+       DSTACK(__FUNCTION_NAME);
+       PlayerSAO *playersao = getPlayerSAO(peer_id);
+       assert(playersao);
+       playersao->m_breath_not_sent = false;
+       SendBreath(m_con, peer_id, playersao->getBreath());
+}
+
 void Server::SendMovePlayer(u16 peer_id)
 {
        DSTACK(__FUNCTION_NAME);
@@ -3537,7 +3834,7 @@ void Server::SendPlayerPrivileges(u16 peer_id)
                return;
 
        std::set<std::string> privs;
-       scriptapi_get_auth(m_lua, player->getName(), NULL, &privs);
+       m_script->getAuth(player->getName(), NULL, &privs);
 
        std::ostringstream os(std::ios_base::binary);
        writeU16(os, TOCLIENT_PRIVILEGES);
@@ -4257,7 +4554,7 @@ void Server::DiePlayer(u16 peer_id)
        playersao->setHP(0);
 
        // Trigger scripted stuff
-       scriptapi_on_dieplayer(m_lua, playersao);
+       m_script->on_dieplayer(playersao);
 
        SendPlayerHP(peer_id);
        SendDeathscreen(m_con, peer_id, false, v3f(0,0,0));
@@ -4276,7 +4573,7 @@ void Server::RespawnPlayer(u16 peer_id)
 
        playersao->setHP(PLAYER_MAX_HP);
 
-       bool repositioned = scriptapi_on_respawnplayer(m_lua, playersao);
+       bool repositioned = m_script->on_respawnplayer(playersao);
        if(!repositioned){
                v3f pos = findSpawnPos(m_env->getServerMap());
                playersao->setPos(pos);
@@ -4356,7 +4653,7 @@ std::wstring Server::getStatusString()
 std::set<std::string> Server::getPlayerEffectivePrivs(const std::string &name)
 {
        std::set<std::string> privs;
-       scriptapi_get_auth(m_lua, name, NULL, &privs);
+       m_script->getAuth(name, NULL, &privs);
        return privs;
 }
 
@@ -4405,12 +4702,15 @@ void Server::saveConfig()
                g_settings->updateConfigFile(m_path_config.c_str());
 }
 
-void Server::notifyPlayer(const char *name, const std::wstring msg)
+void Server::notifyPlayer(const char *name, const std::wstring msg, const bool prepend = true)
 {
        Player *player = m_env->getPlayer(name);
        if(!player)
                return;
-       SendChatMessage(player->peer_id, std::wstring(L"Server: -!- ")+msg);
+       if (prepend)
+               SendChatMessage(player->peer_id, std::wstring(L"Server -!- ")+msg);
+       else
+               SendChatMessage(player->peer_id, msg);
 }
 
 bool Server::showFormspec(const char *playername, const std::string &formspec, const std::string &formname)
@@ -4427,11 +4727,169 @@ bool Server::showFormspec(const char *playername, const std::string &formspec, c
        return true;
 }
 
+u32 Server::hudAdd(Player *player, HudElement *form) {
+       if (!player)
+               return -1;
+
+       u32 id = hud_get_free_id(player);
+       if (id < player->hud.size())
+               player->hud[id] = form;
+       else
+               player->hud.push_back(form);
+       
+       SendHUDAdd(player->peer_id, id, form);
+       return id;
+}
+
+bool Server::hudRemove(Player *player, u32 id) {
+       if (!player || id >= player->hud.size() || !player->hud[id])
+               return false;
+
+       delete player->hud[id];
+       player->hud[id] = NULL;
+       
+       SendHUDRemove(player->peer_id, id);
+       return true;
+}
+
+bool Server::hudChange(Player *player, u32 id, HudElementStat stat, void *data) {
+       if (!player)
+               return false;
+
+       SendHUDChange(player->peer_id, id, stat, data);
+       return true;
+}
+
+bool Server::hudSetFlags(Player *player, u32 flags, u32 mask) {
+       if (!player)
+               return false;
+
+       SendHUDSetFlags(player->peer_id, flags, mask);
+       return true;
+}
+
+bool Server::hudSetHotbarItemcount(Player *player, s32 hotbar_itemcount) {
+       if (!player)
+               return false;
+       if (hotbar_itemcount <= 0 || hotbar_itemcount > HUD_HOTBAR_ITEMCOUNT_MAX)
+               return false;
+
+       std::ostringstream os(std::ios::binary);
+       writeS32(os, hotbar_itemcount);
+       SendHUDSetParam(player->peer_id, HUD_PARAM_HOTBAR_ITEMCOUNT, os.str());
+       return true;
+}
+
 void Server::notifyPlayers(const std::wstring msg)
 {
        BroadcastChatMessage(msg);
 }
 
+void Server::spawnParticle(const char *playername, v3f pos,
+               v3f velocity, v3f acceleration,
+               float expirationtime, float size, bool
+               collisiondetection, std::string texture)
+{
+       Player *player = m_env->getPlayer(playername);
+       if(!player)
+               return;
+       SendSpawnParticle(player->peer_id, pos, velocity, acceleration,
+                       expirationtime, size, collisiondetection, texture);
+}
+
+void Server::spawnParticleAll(v3f pos, v3f velocity, v3f acceleration,
+               float expirationtime, float size,
+               bool collisiondetection, std::string texture)
+{
+       SendSpawnParticleAll(pos, velocity, acceleration,
+                       expirationtime, size, collisiondetection, texture);
+}
+
+u32 Server::addParticleSpawner(const char *playername,
+               u16 amount, float spawntime,
+               v3f minpos, v3f maxpos,
+               v3f minvel, v3f maxvel,
+               v3f minacc, v3f maxacc,
+               float minexptime, float maxexptime,
+               float minsize, float maxsize,
+               bool collisiondetection, std::string texture)
+{
+       Player *player = m_env->getPlayer(playername);
+       if(!player)
+               return -1;
+
+       u32 id = 0;
+       for(;;) // look for unused particlespawner id
+       {
+               id++;
+               if (std::find(m_particlespawner_ids.begin(),
+                               m_particlespawner_ids.end(), id)
+                               == m_particlespawner_ids.end())
+               {
+                       m_particlespawner_ids.push_back(id);
+                       break;
+               }
+       }
+
+       SendAddParticleSpawner(player->peer_id, amount, spawntime,
+               minpos, maxpos, minvel, maxvel, minacc, maxacc,
+               minexptime, maxexptime, minsize, maxsize,
+               collisiondetection, texture, id);
+
+       return id;
+}
+
+u32 Server::addParticleSpawnerAll(u16 amount, float spawntime,
+               v3f minpos, v3f maxpos,
+               v3f minvel, v3f maxvel,
+               v3f minacc, v3f maxacc,
+               float minexptime, float maxexptime,
+               float minsize, float maxsize,
+               bool collisiondetection, std::string texture)
+{
+       u32 id = 0;
+       for(;;) // look for unused particlespawner id
+       {
+               id++;
+               if (std::find(m_particlespawner_ids.begin(),
+                               m_particlespawner_ids.end(), id)
+                               == m_particlespawner_ids.end())
+               {
+                       m_particlespawner_ids.push_back(id);
+                       break;
+               }
+       }
+
+       SendAddParticleSpawnerAll(amount, spawntime,
+               minpos, maxpos, minvel, maxvel, minacc, maxacc,
+               minexptime, maxexptime, minsize, maxsize,
+               collisiondetection, texture, id);
+
+       return id;
+}
+
+void Server::deleteParticleSpawner(const char *playername, u32 id)
+{
+       Player *player = m_env->getPlayer(playername);
+       if(!player)
+               return;
+
+       m_particlespawner_ids.erase(
+                       std::remove(m_particlespawner_ids.begin(),
+                       m_particlespawner_ids.end(), id),
+                       m_particlespawner_ids.end());
+       SendDeleteParticleSpawner(player->peer_id, id);
+}
+
+void Server::deleteParticleSpawnerAll(u32 id)
+{
+       m_particlespawner_ids.erase(
+                       std::remove(m_particlespawner_ids.begin(),
+                       m_particlespawner_ids.end(), id),
+                       m_particlespawner_ids.end());
+       SendDeleteParticleSpawnerAll(id);
+}
+
 void Server::queueBlockEmerge(v3s16 blockpos, bool allow_generate)
 {
        m_emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, blockpos, allow_generate);
@@ -4616,36 +5074,28 @@ v3f findSpawnPos(ServerMap &map)
        {
                s32 range = 1 + i;
                // We're going to try to throw the player to this position
-               v2s16 nodepos2d = v2s16(-range + (myrand()%(range*2)),
-                               -range + (myrand()%(range*2)));
-               //v2s16 sectorpos = getNodeSectorPos(nodepos2d);
-               // Get ground height at point (fallbacks to heightmap function)
+               v2s16 nodepos2d = v2s16(
+                               -range + (myrand() % (range * 2)),
+                               -range + (myrand() % (range * 2)));
+
+               // Get ground height at point
                s16 groundheight = map.findGroundLevel(nodepos2d);
-               // Don't go underwater
-               if(groundheight <= water_level)
-               {
-                       //infostream<<"-> Underwater"<<std::endl;
+               if (groundheight <= water_level) // Don't go underwater
                        continue;
-               }
-               // Don't go to high places
-               if(groundheight > water_level + 6)
-               {
-                       //infostream<<"-> Underwater"<<std::endl;
+               if (groundheight > water_level + 6) // Don't go to high places
                        continue;
-               }
 
-               nodepos = v3s16(nodepos2d.X, groundheight-2, nodepos2d.Y);
+               nodepos = v3s16(nodepos2d.X, groundheight, nodepos2d.Y);
                bool is_good = false;
                s32 air_count = 0;
-               for(s32 i=0; i<10; i++){
+               for (s32 i = 0; i < 10; i++) {
                        v3s16 blockpos = getNodeBlockPos(nodepos);
                        map.emergeBlock(blockpos, true);
-                       MapNode n = map.getNodeNoEx(nodepos);
-                       if(n.getContent() == CONTENT_AIR){
+                       content_t c = map.getNodeNoEx(nodepos).getContent();
+                       if (c == CONTENT_AIR || c == CONTENT_IGNORE) {
                                air_count++;
-                               if(air_count >= 2){
+                               if (air_count >= 2){
                                        is_good = true;
-                                       nodepos.Y -= 1;
                                        break;
                                }
                        }
@@ -4715,14 +5165,17 @@ PlayerSAO* Server::emergePlayer(const char *name, u16 peer_id)
                        getPlayerEffectivePrivs(player->getName()),
                        isSingleplayer());
 
+       /* Clean up old HUD elements from previous sessions */
+       player->hud.clear();
+
        /* Add object to environment */
        m_env->addActiveObject(playersao);
 
        /* Run scripts */
        if(newplayer)
-               scriptapi_on_newplayer(m_lua, playersao);
+               m_script->on_newplayer(playersao);
 
-       scriptapi_on_joinplayer(m_lua, playersao);
+       m_script->on_joinplayer(playersao);
 
        return playersao;
 }
@@ -4817,7 +5270,7 @@ void Server::handlePeerChange(PeerChange &c)
                                PlayerSAO *playersao = player->getPlayerSAO();
                                assert(playersao);
 
-                               scriptapi_on_leaveplayer(m_lua, playersao);
+                               m_script->on_leaveplayer(playersao);
 
                                playersao->disconnected();
                        }