keep_alive.hxx

   1 //  $Id: keep_alive.hxx,v 1.2 2002/11/20 18:08:16 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction game
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #ifndef HEADER_CONSTRUO_KEEP_ALIVE_HXX
  21 #define HEADER_CONSTRUO_KEEP_ALIVE_HXX
  22
  23 #include "keep_alive_mgr.hxx"
  24
  25 /** Each object that inherit from KeepAlive gets the keep_alive()
  26     function called once per game-loop, it is meant to catch XEvents
  27     and things like that. */
  28 class KeepAlive
  29 {
  30 private:
  31 public:
  32   KeepAlive () {
  33     KeepAliveMgr::register_obj(this);
  34   }
  35
  36   virtual ~KeepAlive () {
  37     KeepAliveMgr::unregister_obj(this);
  38   }
  39
  40   virtual void keep_alive () =0;
  41 };
  42
  43 #endif
  44
  45 /* EOF */