* already exists, return False and do nothing.
*/
@Override
protected Message createAccount(String pl_name, String pl_pwd) {
if (players.playerExists(pl_name)) {
return new Message(Message.NEW_ACCOUNT_ERROR, "");
}
Player newPlayer = new Player(pl_name, pl_pwd);
players.addPlayer(newPlayer);
plays.addPlayer(newPlayer.getPlayerID());
// Return the new player ID
return new Message(Message.NEW_ACCOUNT_SUCCESS, newPlayer.getPlayerID());
}