//
// options.hxx -- class to handle command line options
//
// Written by Curtis Olson, started April 1998.
//
// Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
// (Log is kept at end of this file)
#ifndef _OPTIONS_HXX
#define _OPTIONS_HXX
#ifndef __cplusplus
# error This library requires C++
#endif
#define FG_OPTIONS_OK 0
#define FG_OPTIONS_HELP 1
#define FG_OPTIONS_ERROR 2
class fgOPTIONS {
// The flight gear "root" directory
char fg_root[256];
// Starting position and orientation
char airport_id[5]; // ID of initial starting airport
double lon; // starting longitude in degrees (west = -)
double lat; // starting latitude in degrees (south = -)
double altitude; // starting altitude in meters
double heading; // heading (yaw) angle in degress (Psi)
double roll; // roll angle in degrees (Phi)
double pitch; // pitch angle in degrees (Theta)
// Miscellaneous
int game_mode; // Game mode enabled/disabled
int splash_screen; // show splash screen
int intro_music; // play introductory music
int mouse_pointer; // show mouse pointer
int pause; // pause intially enabled/disabled
// Features
int hud_status; // HUD on/off
int panel_status; // Panel on/off
int sound; // play sound effects
// Flight Model options
int flight_model; // Flight Model: FG_SLEW, FG_LARCSIM, etc.
// Rendering options
int fog; // Fog enabled/disabled
double fov; // Field of View
int fullscreen; // Full screen mode enabled/disabled
int shading; // shading method, 0 = Flat, 1 = Smooth
int skyblend; // Blend sky to haze (using polygons) or just clear
int textures; // Textures enabled/disabled
int wireframe; // Wireframe mode enabled/disabled
// Scenery options
int tile_radius; // Square radius of rendered tiles (around center
// square.)
int tile_diameter; // Diameter of rendered tiles. for instance
// if tile_diameter = 3 then a 3 x 3 grid of tiles will
// be drawn. Increase this to see terrain that is
// further away.
// Time options
int time_offset; // Offset true time by this many seconds
public:
// Constructor
fgOPTIONS( void );
// Parse a single option
int parse_option( char *arg );
// Parse the command line options
int parse_command_line( int argc, char **argv );
// Parse the command line options
int parse_config_file( char *path );
// Print usage message
void usage ( void );
// Query functions
void get_fg_root(char *root);
void get_airport_id(char *id);
double get_lon( void );
double get_lat( void );
double get_altitude( void );
double get_heading( void );
double get_roll( void );
double get_pitch( void );
int get_game_mode( void );
int get_splash_screen( void );
int get_intro_music( void );
int get_mouse_pointer( void );
int get_pause( void );
int get_hud_status( void );
int get_panel_status( void );
int get_sound( void );
int get_flight_model( void );
int get_fog( void );
double get_fov( void );
int get_fullscreen( void );
int get_shading( void );
int get_skyblend( void );
int get_textures( void );
int get_wireframe( void );
int get_tile_radius( void );
int get_tile_diameter( void );
int get_time_offset( void );
// Update functions
void set_hud_status( int status );
void set_fov( double amount );
// Destructor
~fgOPTIONS( void );
};
extern fgOPTIONS current_options;
#endif /* _OPTIONS_HXX */
// $Log$
// Revision 1.14 1998/08/20 15:10:35 curt
// Added GameGLUT support.
//
// Revision 1.13 1998/07/30 23:48:29 curt
// Output position & orientation when pausing.
// Eliminated libtool use.
// Added options to specify initial position and orientation.
// Changed default fov to 55 degrees.
// Added command line option to start in paused or unpaused state.
//
// Revision 1.12 1998/07/27 18:41:26 curt
// Added a pause command "p"
// Fixed some initialization order problems between pui and glut.
// Added an --enable/disable-sound option.
//
// Revision 1.11 1998/07/13 21:01:39 curt
// Wrote access functions for current fgOPTIONS.
//
// Revision 1.10 1998/07/06 21:34:20 curt
// Added an enable/disable splash screen option.
// Added an enable/disable intro music option.
// Added an enable/disable instrument panel option.
// Added an enable/disable mouse pointer option.
// Added using namespace std for compilers that support this.
//
// Revision 1.9 1998/06/27 16:54:34 curt
// Replaced "extern displayInstruments" with a entry in fgOPTIONS.
// Don't change the view port when displaying the panel.
//
// Revision 1.8 1998/05/16 13:08:36 curt
// C++ - ified views.[ch]xx
// Shuffled some additional view parameters into the fgVIEW class.
// Changed tile-radius to tile-diameter because it is a much better
// name.
// Added a WORLD_TO_EYE transformation to views.cxx. This allows us
// to transform world space to eye space for view frustum culling.
//
// Revision 1.7 1998/05/13 18:29:59 curt
// Added a keyboard binding to dynamically adjust field of view.
// Added a command line option to specify fov.
// Adjusted terrain color.
// Root path info moved to fgOPTIONS.
// Added ability to parse options out of a config file.
//
// Revision 1.6 1998/05/06 03:16:26 curt
// Added an averaged global frame rate counter.
// Added an option to control tile radius.
//
// Revision 1.5 1998/05/03 00:47:32 curt
// Added an option to enable/disable full-screen mode.
//
// Revision 1.4 1998/04/30 12:34:19 curt
// Added command line rendering options:
// enable/disable fog/haze
// specify smooth/flat shading
// disable sky blending and just use a solid color
// enable wireframe drawing mode
//
// Revision 1.3 1998/04/28 01:20:23 curt
// Type-ified fgTIME and fgVIEW.
// Added a command line option to disable textures.
//
// Revision 1.2 1998/04/25 15:11:13 curt
// Added an command line option to set starting position based on airport ID.
//
// Revision 1.1 1998/04/24 00:49:21 curt
// Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
// Trying out some different option parsing code.
// Some code reorganization.
//
//