Odd circular dependency issue.

#include "../psi/Network/PracticalSocket.h"

//#include "../psi/Network/SINetwork.h"

//Mongo:
//#include "mongo/client/dbclient.h"

//using namespace bson;
using namespace std;

class NewPlayerListener;
class DatabaseInterface;
class RESTService;
class Packet;
class PlayerListener;

class MasterNew {
    public:
        MasterNew(void);
        ~MasterNew(void);

        DatabaseInterface* getDatabaseInterface(void);

        void onNewPlayer2(SOCKET* playerSocket);

        // For reasons unknown to me, this function must be declared in the header. - Gerjo
        void onNewPlayer(SOCKET* playerSocket) {
            this->onNewPlayer2(playerSocket);
        }

        void onReceivePacketFromPlayer(Packet* packet, PlayerListener* playerListener);

        private:
            RESTService* _service;
            DatabaseInterface* _databaseInterface;
            NewPlayerListener* _newPlayerListener;

            vector<PlayerListener*>* _playerListeners;
};

#endif