Beginning C++ Game Programming

#include <iostream>
#include <string>

using namespace std;

class Player
{
public:
   Player(const string& name = ""): m_Name(name), m_pNext(0) {}
   string GetName() const { return m_Name; }
   Player* GetNext() const { return m_pNext; }
   void SetNext(Player* next) { m_pNext = next; }
private:
   string m_Name;
   Player* m_pNext; //Pointer to next player in list
};

class Lobby
{

   friend ostream& operator<<(ostream& os, const Lobby& aLobby);
   /*friend Lobby& operator=(const Lobby& aLobby);*/
public:
   Lobby(): m_pHead(0) {}
   ~Lobby() { Clear(); }
   void AddPlayer();
   void RemovePlayer();
   void Clear();
 
private:
   Player* m_pHead;
};

void Lobby::AddPlayer()
{
   //create a new player node
   cout << "Please enter the name of the new player: ";
   string name;
   cin >> name;
   Player* pNewPlayer = new Player(name);

   //if list is empty, make head of list this new player
   if (m_pHead == 0)
   {
      m_pHead = pNewPlayer;
   }
   //otherwise find the end of the list and add the player there
   else
   {
      Player* pIter = m_pHead;
      while (pIter->GetNext() != 0)
      {
         pIter = pIter->GetNext();
      }
         pIter->SetNext(pNewPlayer);
   }
}

void Lobby::RemovePlayer()
{

   if (m_pHead == 0)
   {
      cout << "The game lobby is empty. No one to remove!\n";
   }
   else
   {
      Player* pTemp = m_pHead;
      m_pHead = m_pHead->GetNext();
      delete pTemp;
   }
}


void Lobby::Clear()
{
while (m_pHead != 0)
   {
     RemovePlayer();
     }
}

ostream& operator<<(ostream& os, const Lobby& aLobby)
{
   Player* pIter = aLobby.m_pHead;

   os << "\nHere's who's in the game lobby:\n";
   if (pIter == 0)
   {
      os << "The lobby is empty.\n";
   }
   else
   {
      while (pIter != 0)
      {
         os << pIter->GetName()  << endl;
         pIter = pIter->GetNext();
      }
   }

   return os;
}




int main()
{
   Lobby myLobby;
   int choice;

   do
   {
      cout << myLobby;
      cout << "\nGAME LOBBY\n";
      cout << "0 - Exit the program.\n";
      cout << "1 - Add a player to the lobby.\n";
      cout << "2 - Remove a player from the lobby.\n";
      cout << "3 - Clear the lobby.\n";
      cout << endl << "Enter choice: ";
      cin >> choice;

      switch (choice)
      {
         case 0: cout << "Good-bye.\n"; break;
         case 1: myLobby.AddPlayer(); break;
         case 2: myLobby.RemovePlayer(); break;
         case 3: myLobby.Clear(); break;
         default: cout << "That was not a valid choice.\n";
      }
   }

   while (choice != 0);

   cout << "Press Enter to exit" ;
   cin.ignore(cin.rdbuf()->in_avail() + 1);
   return 0;
}