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 // Starting position and orientation
47 // ID of initial starting airport, only need 5 bytes but I guess
48 // 16 is good for memory alignment.
50 double lon; // starting longitude in degrees (west = -)
51 double lat; // starting latitude in degrees (south = -)
52 double altitude; // starting altitude in meters
53 double heading; // heading (yaw) angle in degress (Psi)
54 double roll; // roll angle in degrees (Phi)
55 double pitch; // pitch angle in degrees (Theta)
58 int game_mode; // Game mode enabled/disabled
59 int splash_screen; // show splash screen
60 int intro_music; // play introductory music
61 int mouse_pointer; // show mouse pointer
62 int pause; // pause intially enabled/disabled
65 int hud_status; // HUD on/off
66 int panel_status; // Panel on/off
67 int sound; // play sound effects
69 // Flight Model options
70 int flight_model; // Flight Model: FG_SLEW, FG_LARCSIM, etc.
73 int fog; // Fog enabled/disabled
74 double fov; // Field of View
75 int fullscreen; // Full screen mode enabled/disabled
76 int shading; // shading method, 0 = Flat, 1 = Smooth
77 int skyblend; // Blend sky to haze (using polygons) or just clear
78 int textures; // Textures enabled/disabled
79 int wireframe; // Wireframe mode enabled/disabled
82 int tile_radius; // Square radius of rendered tiles (around center
84 int tile_diameter; // Diameter of rendered tiles. for instance
85 // if tile_diameter = 3 then a 3 x 3 grid of tiles will
86 // be drawn. Increase this to see terrain that is
93 int time_offset; // Offset true time by this many seconds
100 // Parse a single option
101 int parse_option( char *arg );
103 // Parse the command line options
104 int parse_command_line( int argc, char **argv );
106 // Parse the command line options
107 int parse_config_file( char *path );
109 // Print usage message
113 void get_fg_root(char *root) { strcpy(root, fg_root); }
114 void get_airport_id(char *id) { strcpy(id, airport_id); }
115 double get_lon( void ) { return(lon); }
116 double get_lat( void ) { return(lat); }
117 double get_altitude( void ) { return(altitude); }
118 double get_heading( void ) { return(heading); }
119 double get_roll( void ) { return(roll); }
120 double get_pitch( void ) { return(pitch); }
121 int get_game_mode( void ) { return(game_mode); }
122 int get_splash_screen( void ) { return(splash_screen); }
123 int get_intro_music( void ) { return(intro_music); }
124 int get_mouse_pointer( void ) { return(mouse_pointer); }
125 int get_pause( void ) { return(pause); }
126 int get_hud_status( void ) { return(hud_status); }
127 int get_panel_status( void ) { return(panel_status); }
128 int get_sound( void ) { return(sound); }
129 int get_flight_model( void ) { return(flight_model); }
130 int get_fog( void ) { return(fog); }
131 double get_fov( void ) { return(fov); }
132 int get_fullscreen( void ) { return(fullscreen); }
133 int get_shading( void ) { return(shading); }
134 int get_skyblend( void ) { return(skyblend); }
135 int get_textures( void ) { return(textures); }
136 int get_wireframe( void ) { return(wireframe); }
137 int get_tile_radius( void ) { return(tile_radius); }
138 int get_tile_diameter( void ) { return(tile_diameter); }
139 int get_time_offset( void ) { return(time_offset); }
140 int get_tris_or_culled( void ) { return(tris_or_culled); }
143 void set_hud_status( int status ) { hud_status = status; }
144 void set_fov( double amount ) { fov = amount; }
147 void get_fg_root(char *root);
148 void get_airport_id(char *id);
149 double get_lon( void );
150 double get_lat( void );
151 double get_altitude( void );
152 double get_heading( void );
153 double get_roll( void );
154 double get_pitch( void );
155 int get_game_mode( void );
156 int get_splash_screen( void );
157 int get_intro_music( void );
158 int get_mouse_pointer( void );
159 int get_pause( void );
160 int get_hud_status( void );
161 int get_panel_status( void );
162 int get_sound( void );
163 int get_flight_model( void );
165 double get_fov( void );
166 int get_fullscreen( void );
167 int get_shading( void );
168 int get_skyblend( void );
169 int get_textures( void );
170 int get_wireframe( void );
171 int get_tile_radius( void );
172 int get_tile_diameter( void );
173 int get_time_offset( void );
174 int get_tris_or_culled( void ) { return(tris_or_culled); }
177 void set_hud_status( int status );
178 void set_fov( double amount );
187 extern fgOPTIONS current_options;
190 #endif /* _OPTIONS_HXX */
194 // Revision 1.15 1998/08/24 20:11:15 curt
195 // Added i/I to toggle full vs. minimal HUD.
196 // Added a --hud-tris vs --hud-culled option.
197 // Moved options accessor funtions to options.hxx.
199 // Revision 1.14 1998/08/20 15:10:35 curt
200 // Added GameGLUT support.
202 // Revision 1.13 1998/07/30 23:48:29 curt
203 // Output position & orientation when pausing.
204 // Eliminated libtool use.
205 // Added options to specify initial position and orientation.
206 // Changed default fov to 55 degrees.
207 // Added command line option to start in paused or unpaused state.
209 // Revision 1.12 1998/07/27 18:41:26 curt
210 // Added a pause command "p"
211 // Fixed some initialization order problems between pui and glut.
212 // Added an --enable/disable-sound option.
214 // Revision 1.11 1998/07/13 21:01:39 curt
215 // Wrote access functions for current fgOPTIONS.
217 // Revision 1.10 1998/07/06 21:34:20 curt
218 // Added an enable/disable splash screen option.
219 // Added an enable/disable intro music option.
220 // Added an enable/disable instrument panel option.
221 // Added an enable/disable mouse pointer option.
222 // Added using namespace std for compilers that support this.
224 // Revision 1.9 1998/06/27 16:54:34 curt
225 // Replaced "extern displayInstruments" with a entry in fgOPTIONS.
226 // Don't change the view port when displaying the panel.
228 // Revision 1.8 1998/05/16 13:08:36 curt
229 // C++ - ified views.[ch]xx
230 // Shuffled some additional view parameters into the fgVIEW class.
231 // Changed tile-radius to tile-diameter because it is a much better
233 // Added a WORLD_TO_EYE transformation to views.cxx. This allows us
234 // to transform world space to eye space for view frustum culling.
236 // Revision 1.7 1998/05/13 18:29:59 curt
237 // Added a keyboard binding to dynamically adjust field of view.
238 // Added a command line option to specify fov.
239 // Adjusted terrain color.
240 // Root path info moved to fgOPTIONS.
241 // Added ability to parse options out of a config file.
243 // Revision 1.6 1998/05/06 03:16:26 curt
244 // Added an averaged global frame rate counter.
245 // Added an option to control tile radius.
247 // Revision 1.5 1998/05/03 00:47:32 curt
248 // Added an option to enable/disable full-screen mode.
250 // Revision 1.4 1998/04/30 12:34:19 curt
251 // Added command line rendering options:
252 // enable/disable fog/haze
253 // specify smooth/flat shading
254 // disable sky blending and just use a solid color
255 // enable wireframe drawing mode
257 // Revision 1.3 1998/04/28 01:20:23 curt
258 // Type-ified fgTIME and fgVIEW.
259 // Added a command line option to disable textures.
261 // Revision 1.2 1998/04/25 15:11:13 curt
262 // Added an command line option to set starting position based on airport ID.
264 // Revision 1.1 1998/04/24 00:49:21 curt
265 // Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
266 // Trying out some different option parsing code.
267 // Some code reorganization.