2 // options.hxx -- class to handle command line options
4 // Written by Curtis Olson, started April 1998.
6 // Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 // (Log is kept at end of this file)
31 # error This library requires C++
35 #define FG_OPTIONS_OK 0
36 #define FG_OPTIONS_HELP 1
37 #define FG_OPTIONS_ERROR 2
43 // The flight gear "root" directory
46 // ID of initial starting airport
50 int hud_status; // HUD on/off
53 int fog; // Fog enabled/disabled
54 double fov; // Field of View
55 int fullscreen; // Full screen mode enabled/disabled
56 int shading; // shading method, 0 = Flat, 1 = Smooth
57 int skyblend; // Blend sky to haze (using polygons) or just clear
58 int textures; // Textures enabled/disabled
59 int wireframe; // Wireframe mode enabled/disabled
62 int tile_radius; // Square radius of rendered tiles. for instance
63 // if tile_radius = 3 then a 3 x 3 grid of tiles will
64 // be drawn. Increase this to see terrain that is
68 int time_offset; // Offset true time by this many seconds
73 // Parse a single option
74 int parse_option( char *arg );
76 // Parse the command line options
77 int parse_command_line( int argc, char **argv );
79 // Parse the command line options
80 int parse_config_file( char *path );
82 // Print usage message
91 extern fgOPTIONS current_options;
94 #endif /* _OPTIONS_HXX */
98 // Revision 1.7 1998/05/13 18:29:59 curt
99 // Added a keyboard binding to dynamically adjust field of view.
100 // Added a command line option to specify fov.
101 // Adjusted terrain color.
102 // Root path info moved to fgOPTIONS.
103 // Added ability to parse options out of a config file.
105 // Revision 1.6 1998/05/06 03:16:26 curt
106 // Added an averaged global frame rate counter.
107 // Added an option to control tile radius.
109 // Revision 1.5 1998/05/03 00:47:32 curt
110 // Added an option to enable/disable full-screen mode.
112 // Revision 1.4 1998/04/30 12:34:19 curt
113 // Added command line rendering options:
114 // enable/disable fog/haze
115 // specify smooth/flat shading
116 // disable sky blending and just use a solid color
117 // enable wireframe drawing mode
119 // Revision 1.3 1998/04/28 01:20:23 curt
120 // Type-ified fgTIME and fgVIEW.
121 // Added a command line option to disable textures.
123 // Revision 1.2 1998/04/25 15:11:13 curt
124 // Added an command line option to set starting position based on airport ID.
126 // Revision 1.1 1998/04/24 00:49:21 curt
127 // Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
128 // Trying out some different option parsing code.
129 // Some code reorganization.