class HUDHintManager(object):
    """
    This class will be used for HUDS management
    """
    def __init__(self):
        """ Default constructor, initialize variables """
        self._name = '%s(%s)' % (self.__class__.__name__, id(self))
        self.players = {}
        self._refresh()

    def stop(self):
        """ Static method for stop all delays """
        gamethread.cancelDelayed(self._name)
        self.players.clear()

    def addLine(self, player, line, timeout=10):
        """
        Add a line to the HUD of a player

        @PARAM player  - UserID of the player
        @PARAM line - Line to add
        @PARAM timeout - The time after the line is deleted, 10 by default
        """
        if player not in self.players:
            self.players[player] = collections.deque([], 10)
        self.players[player].append(line)
        gamethread.delayedname(timeout if timeout < 30 else 10, self._name, self.removeLine, (player, line))

    def removeLine(self, player, line):
        """
        Remove a line to the HUD of a player

        @PARAM player - UserID of the player
        @PARAM line   - Line to remove
        """
        if line in self.players[player]:
            self.players[player].remove(line)
            if not len(self.players[player]):
                del self.players[player]

    def _refresh(self):
        """ Class method only, used to auto-refresh the HUDs """
        for player in self.players:
            if len(self.players[player]):
                usermsg.keyhint(player, '\n'.join(self.players[player])
        gamethread.delayedname(1, self._name, self._refresh)