diff --git a/include/Constants.hpp b/include/Constants.hpp
index ea69221..64556c8 100644
--- a/include/Constants.hpp
+++ b/include/Constants.hpp
@@ -4,17 +4,10 @@
     #include <SFML/Window.hpp>
 #endif
 #include <SFML/Network.hpp>
+#include "Time.hpp"
 #include <string>
 #include <fstream>
 #include <random>
-#include <chrono>
-
-
-namespace Time {
-    typedef sf::Uint32 Time;
-    
-    inline Time getTimeNow() { return static_cast<Time>(std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count()); }
-}
 
 
 /**
@@ -226,8 +219,8 @@ class Constants
     // Network
     static inline size_t PORT_LISTEN = 55000;
     static inline size_t PORT_SEND = 55001;
-    static inline std::string SERVER_IP = "77.73.71.158";
-    static inline int MAX_PING = 5000;
+    static inline std::string SERVER_IP = "77.73.69.78";
+    static inline int MAX_PING = 1000;
     static inline size_t UDP_PACKETS_GAP = 1000;
     static inline PlayerId id = {0, 0, 0, 0};
 };
\ No newline at end of file
diff --git a/include/Hash.hpp b/include/Hash.hpp
index ba6c315..b024a4c 100644
--- a/include/Hash.hpp
+++ b/include/Hash.hpp
@@ -4,6 +4,21 @@
 #include "Constants.hpp"
 
 
+template<>
+struct std::hash<PlayerId>
+{
+    inline size_t operator()(const PlayerId& id) const
+    {
+        size_t tmp = id.getIp();
+        tmp ^= id.getPort() + 0x9e3779b9 + (tmp << 6) + (tmp >> 2);
+        tmp ^= id.getTimestamp() + 0x9e3779b9 + (tmp << 6) + (tmp >> 2);
+        tmp ^= id.getKey() + 0x9e3779b9 + (tmp << 6) + (tmp >> 2);
+
+        return tmp;
+    }
+};
+
+
 template <>
 struct std::hash<SocketInfo>
 {
diff --git a/include/Multiplayer.hpp b/include/Multiplayer.hpp
index 09282df..8bb0cfa 100644
--- a/include/Multiplayer.hpp
+++ b/include/Multiplayer.hpp
@@ -39,15 +39,18 @@ namespace Multiplayer
     {
     public:
         Transportable() {}
-        Transportable(sf::Vector2f pos, Time::Time sent) : position(pos), sent_time(sent) {}
+        Transportable(sf::Vector2f pos, Time::Time sent, SocketInfo socket) : position(pos), sent_time(sent), socket_info(socket) {}
         inline void setPosition(const sf::Vector2f& new_position) { position = new_position; };
         inline void setTime(const Time::Time& new_time) { sent_time = new_time; }
+        inline void setSocketInfo(const SocketInfo& new_socket_info) { socket_info = new_socket_info; }
         inline const sf::Vector2f& getPosition() const { return position; }
         inline const Time::Time& getTime() const { return sent_time; }
+        inline const SocketInfo& getSocketInfo() const { return socket_info; }
 
     private:
         sf::Vector2f position;
         Time::Time sent_time = 0;
+        SocketInfo socket_info;
     };
 
 
@@ -61,10 +64,10 @@ namespace Multiplayer
     {
     public:
         PlayerData() : Transportable::Transportable() {}
-        PlayerData(const sf::Vector2f& p, const PlayerId& p_id, const Time::Time& t, const Inventory& ni)
-            : Transportable::Transportable(p, t), player_id(p_id), inventory(ni) {}
+        PlayerData(const sf::Vector2f& p, const PlayerId& p_id, const Time::Time& t, const SocketInfo& s, const Inventory& ni)
+            : Transportable::Transportable(p, t, s), player_id(p_id), inventory(ni) {}
         PlayerData(const PlayerData& player)
-            : PlayerData(player.getPosition(), player.getId(), player.getTime(), player.getInventory()) {}
+            : PlayerData(player.getPosition(), player.getId(), player.getTime(), player.getSocketInfo(), player.getInventory()) {}
         inline PlayerId getId() const { return player_id; }
         const size_t objectNumber(Object::ObjectName) const;
         const size_t addObject(Object::ObjectName);
@@ -86,9 +89,9 @@ namespace Multiplayer
     {
     public:
         ObjectData() : Transportable::Transportable() {}
-        ObjectData(sf::Vector2f pos, Time::Time t, Object::ObjectName name, Object::Passability pass)
-            : Transportable::Transportable(pos, t), object_name(name), passability(pass) {}
-        ObjectData(const ObjectData& object) : ObjectData(object.getPosition(), object.getTime(), object.getName(), object.getPassability()) {}
+        ObjectData(sf::Vector2f pos, Time::Time t, SocketInfo s, Object::ObjectName name, Object::Passability pass)
+            : Transportable::Transportable(pos, t, s), object_name(name), passability(pass) {}
+        ObjectData(const ObjectData& object) : ObjectData(object.getPosition(), object.getTime(), object.getSocketInfo(), object.getName(), object.getPassability()) {}
         const Object::ObjectName& getName() const { return object_name; }
         const Object::Passability& getPassability() const { return passability; }
         inline bool operator ==(const ObjectData& object_data) const { return object_name == object_data.getName() && passability == object_data.getPassability(); }
@@ -99,7 +102,7 @@ namespace Multiplayer
     };
 
 
-    typedef std::unordered_map<SocketInfo, PlayerData> PlayerDataPool;
+    typedef std::unordered_map<PlayerId, PlayerData> PlayerDataPool;
     typedef std::unordered_map<sf::Vector2f, std::vector<ObjectData>> ObjectDataPool;
 
     /**
@@ -114,7 +117,7 @@ namespace Multiplayer
         inline const PlayerDataPool& getPlayerDataPool() const { return player_data_pool; }
         inline const ObjectDataPool& getObjectDataPool() const { return object_data_pool; }
         inline void clearObjectDataPool() { object_data_pool.clear(); }
-        PlayerDataPool::iterator removePlayerBySocketInfo(const SocketInfo& id);
+        PlayerDataPool::iterator removePlayerByPlayerId(const PlayerId& id);
         bool removeObject(const ObjectData&);
         void addObject(const Object::Object& object);
         void addObject(const Multiplayer::ObjectData& object_data);
diff --git a/include/Time.hpp b/include/Time.hpp
new file mode 100644
index 0000000..74e1b9e
--- /dev/null
+++ b/include/Time.hpp
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <SFML/System.hpp>
+#include <chrono>
+
+
+namespace Time {
+    typedef sf::Uint32 Time;
+    
+    inline Time getTimeNow() { return static_cast<Time>(std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count()); }
+}
\ No newline at end of file
diff --git a/src/common/Controls.cpp b/src/common/Controls.cpp
index 3fdcbcd..5bc94c9 100644
--- a/src/common/Controls.cpp
+++ b/src/common/Controls.cpp
@@ -117,7 +117,7 @@ void Controls::addEvent(const sf::Event& event)
                                 data << Multiplayer::DataType::Event;
                                 data << Multiplayer::EventType::takeObjectToInventory;
                                 sf::Vector2f object_position(iter.second.getPosition().x / Constants::getPIXEL_SIZE(), iter.second.getPosition().y / Constants::getPIXEL_SIZE());
-                                auto object_data = Multiplayer::ObjectData(object_position, Time::getTimeNow(), iter.second.getName(), iter.second.getPassability());
+                                auto object_data = Multiplayer::ObjectData(object_position, Time::getTimeNow(), SocketInfo(0, 0) /* ??? */, iter.second.getName(), iter.second.getPassability());
                                 data << object_data;
                                 data << user;
                                 udp_manager.send(data);
@@ -232,21 +232,21 @@ void Controls::handleFrameStep()
         auto time = iter->second.getTime();
         Time::Time time_now = Time::getTimeNow();
         int ping = static_cast<int>(time_now) - static_cast<int>(time);
-        if (!player_pool.count(iter->first))
+        if (!player_pool.count(iter->second.getSocketInfo()))
         {
-            player_pool[iter->first] = Actor::Player(iter->second);
+            player_pool[iter->second.getSocketInfo()] = Actor::Player(iter->second);
             ++iter;
             continue;
         }
         else if (ping > Constants::getMAX_PING())
         {
-            player_pool.erase(iter->first);
-            udp_manager.removePlayerBySocketInfo(iter++->first);
+            player_pool.erase(iter->second.getSocketInfo());
+            udp_manager.removePlayerByPlayerId(iter++->second.getId());
             continue;
         }
         else
         {
-            player_pool[iter->first] << iter->second;
+            player_pool[iter->second.getSocketInfo()] << iter->second;
             ++iter;
             continue;
         }
diff --git a/src/common/Multiplayer/Multiplayer.cpp b/src/common/Multiplayer/Multiplayer.cpp
index 690f55f..0f8b554 100644
--- a/src/common/Multiplayer/Multiplayer.cpp
+++ b/src/common/Multiplayer/Multiplayer.cpp
@@ -58,16 +58,17 @@ namespace Multiplayer
     sf::Socket::Status UdpManager::receive()
     {
         data.clear();
-        sf::IpAddress address_temp;
-        unsigned short port_temp;
+        SocketInfo socket_info;
         auto status = sf::Socket::Status::NotReady;
-        status = socket.receive(data, address_temp, port_temp);
+        status = socket.receive(data, socket_info.first, socket_info.second);
         if (status != sf::Socket::Status::Done)
             return status;
         DataType data_type;
-        sf::Uint32 data_type_enum;
-        data >> data_type_enum;
-        data_type = static_cast<DataType>(data_type_enum);
+        {
+            sf::Uint32 data_type_enum;
+            data >> data_type_enum;
+            data_type = static_cast<DataType>(data_type_enum);
+        }
 
         switch (data_type)
         {
@@ -76,6 +77,7 @@ namespace Multiplayer
                 // receive object
                 Multiplayer::ObjectData object_data;
                 data >> object_data;
+                object_data.setSocketInfo(socket_info);
                 addObject(object_data);
                 break;
             }
@@ -83,12 +85,8 @@ namespace Multiplayer
             {
                 PlayerData player_data;
                 data >> player_data;
-                //player_data = PlayerData(player_data.getPosition(), address_temp.toInteger(), port_temp, player_data.getTime(), player_data.getInventory());
-                //if (msg_local_ip == local_ip.toInteger())
-                //{
-                //    std::cout << "its me" << std::endl;
-                //}
-                auto id = SocketInfo(address_temp, port_temp);
+                player_data.setSocketInfo(socket_info);
+                auto id = player_data.getId();
                 Time::Time time_now = Time::getTimeNow();
                 int ping = static_cast<int>(time_now) - static_cast<int>(player_data.getTime());
                 if (player_data_pool.count(id))
@@ -107,7 +105,7 @@ namespace Multiplayer
                                         continue;
                                     data.clear();
                                     data << DataType::Object << obj_data;
-                                    send(data, address_temp, port_temp);
+                                    send(data, socket_info.first, socket_info.second);
                                     sf::sleep(sf::milliseconds(1));
                                 }
                             }
@@ -119,9 +117,9 @@ namespace Multiplayer
                                     for (size_t i = 0; i < iter.second; ++i)
                                     {
                                         data.clear();
-                                        auto object_data = ObjectData(sf::Vector2f(0, 0), old_time, iter.first, Object::Passability::foreground);
+                                        auto object_data = ObjectData(sf::Vector2f(0, 0), old_time, socket_info, iter.first, Object::Passability::foreground);
                                         data << DataType::Event << EventType::addObjectToInvectory << object_data;
-                                        send(data, address_temp, port_temp);
+                                        send(data, socket_info.first, socket_info.second);
                                     }
                                 }
                             }
@@ -190,7 +188,7 @@ namespace Multiplayer
                         // receive user
                         PlayerData player_data;
                         data >> player_data;
-                        auto id = SocketInfo(address_temp, port_temp);
+                        auto id = player_data.getId();
                         Time::Time time_now = Time::getTimeNow();
                         int ping = static_cast<int>(time_now) - static_cast<int>(player_data.getTime());
                         if (player_data_pool.count(id))
@@ -210,10 +208,10 @@ namespace Multiplayer
                                 }
                                 data << DataType::Event << EventType::removeObject << object_data;
                                 for (auto iter = getPlayerDataPool().begin(); iter != getPlayerDataPool().end(); ++iter)
-                                    send(data, id.first, id.second);
+                                    send(data, socket_info.first, socket_info.second);
                                 data.clear();
                                 data << DataType::Event << EventType::addObjectToInvectory << object_data;
-                                send(data, address_temp, port_temp);
+                                send(data, socket_info.first, socket_info.second);
                             }
                         break;
                     }
@@ -262,7 +260,7 @@ namespace Multiplayer
     }
 
 
-    PlayerDataPool::iterator UdpManager::removePlayerBySocketInfo(const SocketInfo& id)
+    PlayerDataPool::iterator UdpManager::removePlayerByPlayerId(const PlayerId& id)
     {
         auto iter = player_data_pool.find(id);
         if (iter == player_data_pool.end())
@@ -303,6 +301,7 @@ namespace Multiplayer
     {
         ObjectData object_data( object.getPosition() / static_cast<float>(Constants::getPIXEL_SIZE()),
                                 Time::getTimeNow(),
+                                SocketInfo(0, 0), // ?
                                 object.getName(),
                                 object.getPassability());
         addObject(object_data);
@@ -386,7 +385,7 @@ namespace Multiplayer
                 {
                     object_name = Object::ObjectName::dirt;
                 }
-                addObject(Multiplayer::ObjectData(point, time_now, object_name, passability));
+                addObject(Multiplayer::ObjectData(point, time_now, SocketInfo(0, 0), object_name, passability));
                 //for (auto iter : player_data_pool)
                 //{
                 //    sf::Packet data;
diff --git a/src/common/Multiplayer/Operators.cpp b/src/common/Multiplayer/Operators.cpp
index 87c99bc..661bb00 100644
--- a/src/common/Multiplayer/Operators.cpp
+++ b/src/common/Multiplayer/Operators.cpp
@@ -4,7 +4,7 @@
 sf::Packet& operator <<(sf::Packet& packet, Multiplayer::ObjectData& object_data)
 {
     object_data.setTime(Time::getTimeNow());
-    packet << object_data.getPosition().x << object_data.getPosition().y << static_cast<sf::Uint32>(object_data.getTime()) << object_data.getName() << object_data.getPassability();
+    packet << object_data.getPosition().x << object_data.getPosition().y << object_data.getTime() << object_data.getName() << object_data.getPassability();
     return packet;
 }
 
@@ -30,7 +30,7 @@ sf::Packet& operator >>(sf::Packet& data, Multiplayer::ObjectData& object_data)
     data >> position.x >> position.y >> sent_time >> object_name_enum >> passability_enum;
     object_name = static_cast<Object::ObjectName>(object_name_enum);
     passability = static_cast<Object::Passability>(passability_enum);
-    object_data = Multiplayer::ObjectData(std::move(position), std::move(sent_time), std::move(object_name), std::move(passability));
+    object_data = Multiplayer::ObjectData(std::move(position), std::move(sent_time), SocketInfo(0, 0), std::move(object_name), std::move(passability));
     return data;
 }
 
@@ -58,10 +58,8 @@ sf::Packet& operator >>(sf::Packet& packet, PlayerId& player_id)
 
 sf::Packet& operator >>(sf::Packet& packet, Multiplayer::PlayerData& player_data)
 {
-    int msg_ip;
     sf::Vector2f position;
     sf::Uint32 sent_time;
-    unsigned int msg_port;
     PlayerId player_id;
     packet >> position.x >> position.y >> player_id >> sent_time;
     sent_time = Time::getTimeNow();
@@ -77,6 +75,6 @@ sf::Packet& operator >>(sf::Packet& packet, Multiplayer::PlayerData& player_data
         size_t object_num = static_cast<size_t>(object_num_uint32);
         inventory[static_cast<Object::ObjectName>(object_name_enum)] = std::move(object_num);
     }
-    player_data = Multiplayer::PlayerData(std::move(position), std::move(player_id), std::move(sent_time), std::move(inventory)); // no inventory needed!
+    player_data = Multiplayer::PlayerData(std::move(position), std::move(player_id), std::move(sent_time), SocketInfo(0, 0), std::move(inventory)); // no inventory needed!
     return packet;
 }
diff --git a/src/server/server.cpp b/src/server/server.cpp
index 342efb1..2effc16 100644
--- a/src/server/server.cpp
+++ b/src/server/server.cpp
@@ -26,7 +26,7 @@ void UdpWorker(Multiplayer::UdpManager& UdpManager)
         auto time_now = Time::getTimeNow();
         iter.second.setTime(time_now);
         int ping = static_cast<int>(time_now) - static_cast<int>(iter.second.getTime());
-	    std::cout << iter.first.first << ":" << iter.first.second << std::endl;
+	    std::cout << iter.second.getSocketInfo().first << ":" << iter.second.getSocketInfo().second << std::endl;
         //std::cout << "id: " << (*iter).first << ", last timepoint: " << std::to_string(time) << std::endl;
         if (ping > Constants::getMAX_PING())
         {
@@ -35,7 +35,7 @@ void UdpWorker(Multiplayer::UdpManager& UdpManager)
             continue;
         }
         auto sector_data = UdpManager.checkSector(iter.second.getPosition());
-        UdpManager.send(sector_data, iter.first.first, iter.first.second);
+        UdpManager.send(sector_data, iter.second.getSocketInfo().first, iter.second.getSocketInfo().second);
         for (auto dest_iter = UdpManager.getPlayerDataPool().begin(); dest_iter != UdpManager.getPlayerDataPool().end(); ++dest_iter)
         {
 	    //std::cout << "sending " << iter->first << " data to " << dest_iter->first << std::endl;
@@ -46,8 +46,8 @@ void UdpWorker(Multiplayer::UdpManager& UdpManager)
                 continue;
             }
             sf::Packet data;
-            data << Multiplayer::DataType::Player << iter.second;
-            UdpManager.send(data, dest_iter->first.first, dest_iter->first.second);
+            data << Multiplayer::DataType::Player << iter.first;
+            UdpManager.send(data, iter.second.getSocketInfo().first, iter.second.getSocketInfo().second);
             //std::cout << "sent" << std::endl;
         }
     }
@@ -75,6 +75,7 @@ std::vector<Multiplayer::ObjectData> load_terrain(const std::string& path)
         object_data_pool_init.push_back(Multiplayer::ObjectData(
             sf::Vector2f(x, y),
             Time::getTimeNow(),
+            SocketInfo(0, 0), // ?
             name,
             pass
         ));
diff --git a/textures/constants.txt b/textures/constants.txt
index 2b64003..efe9c8b 100644
--- a/textures/constants.txt
+++ b/textures/constants.txt
@@ -6,5 +6,5 @@ true
 55000
 55001
 77.73.69.78
-5000
+1000
 1000
\ No newline at end of file