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
42 // The flight gear "root" directory
45 // ID of initial starting airport
49 int splash_screen; // show splash screen
50 int intro_music; // play introductory music
51 int mouse_pointer; // show mouse pointer
54 int hud_status; // HUD on/off
55 int panel_status; // Panel on/off
58 int fog; // Fog enabled/disabled
59 double fov; // Field of View
60 int fullscreen; // Full screen mode enabled/disabled
61 int shading; // shading method, 0 = Flat, 1 = Smooth
62 int skyblend; // Blend sky to haze (using polygons) or just clear
63 int textures; // Textures enabled/disabled
64 int wireframe; // Wireframe mode enabled/disabled
67 int tile_radius; // Square radius of rendered tiles (around center
69 int tile_diameter; // Diameter of rendered tiles. for instance
70 // if tile_diameter = 3 then a 3 x 3 grid of tiles will
71 // be drawn. Increase this to see terrain that is
75 int time_offset; // Offset true time by this many seconds
82 // Parse a single option
83 int parse_option( char *arg );
85 // Parse the command line options
86 int parse_command_line( int argc, char **argv );
88 // Parse the command line options
89 int parse_config_file( char *path );
91 // Print usage message
95 void get_fg_root(char *root);
96 void get_airport_id(char *id);
97 int get_splash_screen( void );
98 int get_intro_music( void );
99 int get_mouse_pointer( void );
100 int get_hud_status( void );
101 int get_panel_status( void );
103 double get_fov( void );
104 int get_fullscreen( void );
105 int get_shading( void );
106 int get_skyblend( void );
107 int get_textures( void );
108 int get_wireframe( void );
109 int get_tile_radius( void );
110 int get_tile_diameter( void );
111 int get_time_offset( void );
114 void set_hud_status( int status );
115 void set_fov( double amount );
123 extern fgOPTIONS current_options;
126 #endif /* _OPTIONS_HXX */
130 // Revision 1.11 1998/07/13 21:01:39 curt
131 // Wrote access functions for current fgOPTIONS.
133 // Revision 1.10 1998/07/06 21:34:20 curt
134 // Added an enable/disable splash screen option.
135 // Added an enable/disable intro music option.
136 // Added an enable/disable instrument panel option.
137 // Added an enable/disable mouse pointer option.
138 // Added using namespace std for compilers that support this.
140 // Revision 1.9 1998/06/27 16:54:34 curt
141 // Replaced "extern displayInstruments" with a entry in fgOPTIONS.
142 // Don't change the view port when displaying the panel.
144 // Revision 1.8 1998/05/16 13:08:36 curt
145 // C++ - ified views.[ch]xx
146 // Shuffled some additional view parameters into the fgVIEW class.
147 // Changed tile-radius to tile-diameter because it is a much better
149 // Added a WORLD_TO_EYE transformation to views.cxx. This allows us
150 // to transform world space to eye space for view frustum culling.
152 // Revision 1.7 1998/05/13 18:29:59 curt
153 // Added a keyboard binding to dynamically adjust field of view.
154 // Added a command line option to specify fov.
155 // Adjusted terrain color.
156 // Root path info moved to fgOPTIONS.
157 // Added ability to parse options out of a config file.
159 // Revision 1.6 1998/05/06 03:16:26 curt
160 // Added an averaged global frame rate counter.
161 // Added an option to control tile radius.
163 // Revision 1.5 1998/05/03 00:47:32 curt
164 // Added an option to enable/disable full-screen mode.
166 // Revision 1.4 1998/04/30 12:34:19 curt
167 // Added command line rendering options:
168 // enable/disable fog/haze
169 // specify smooth/flat shading
170 // disable sky blending and just use a solid color
171 // enable wireframe drawing mode
173 // Revision 1.3 1998/04/28 01:20:23 curt
174 // Type-ified fgTIME and fgVIEW.
175 // Added a command line option to disable textures.
177 // Revision 1.2 1998/04/25 15:11:13 curt
178 // Added an command line option to set starting position based on airport ID.
180 // Revision 1.1 1998/04/24 00:49:21 curt
181 // Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
182 // Trying out some different option parsing code.
183 // Some code reorganization.