observer.h

/*
OOPoker

Copyright (c) 2010 Lode Vandevenne
All rights reserved.

This file is part of OOPoker.

OOPoker is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

OOPoker is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with OOPoker.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

struct Event;

/*
An observer can get events about the game, but does not participate on its own.
There are implementations of this that the various things like writing a log file
to disk, getting player statistics, or letting a human watch AIs battle in the terminal.
*/
class Observer
{
  public:

    virtual ~Observer(){}

    virtual void onEvent(const Event& event) = 0;
};