Fixed the bug where starting a server made the program crash on closing.

Fixed some memory leaks in Client.cpp.

include/Engine/Network/Server.h

@@ -19,6 +19,7 @@ public:
     Server();
     ~Server();
     void Start(World* m_world);
+    void Close();
 
 private:
     // udp stuff
@@ -30,15 +31,16 @@ private:
     std::clock_t m_StartPingTime;
     std::clock_t m_StopTimes[8];
     // Game logic
-
     World* m_World;
-
+    // Close logic
+    bool m_ThreadIsRunning = true;
     // Threaded
     void DisplayLoop();
     void ReadFromClients();
     void InputLoop();
 
 
+
     int  Receive(char* data, size_t length);
     int  CreateMessage(MessageType type, std::string message, char * data);
     void MoveMessageHead(char*& data, size_t& length, size_t stepSize);