1 // fgfs.hxx -- top level include file for FlightGear.
3 // Written by David Megginson, started 2000-12
5 // Copyright (C) 2000 David Megginson, david@megginson.com
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 #ifdef FG_MATH_EXCEPTION_CLASH
44 * Basic interface for all FlightGear subsystems.
49 virtual ~FGSubsystem ();
51 virtual void init () = 0;
52 virtual void bind () = 0;
53 virtual void unbind () = 0;
54 virtual void update () = 0;