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flightgear/Simulator/Main/options.cxx

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// options.cxx -- 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.
//
// $Id$
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#if defined(FX) && defined(XMESA)
bool global_fullscreen = true;
#endif
#include <Include/compiler.h>
#include <math.h> // rint()
#include <stdio.h>
#include <stdlib.h> // atof(), atoi()
#include <string.h>
#include STL_STRING
#include <Debug/logstream.hxx>
#include <Misc/fgstream.hxx>
#include <FDM/flight.hxx>
#include <Include/fg_constants.h>
#include <Time/fg_time.hxx>
#include <Main/options.hxx>
#include "fg_serial.hxx"
FG_USING_STD(string);
FG_USING_NAMESPACE(std);
inline double
atof( const string& str )
{
#ifdef __MWERKS__
// -dw- if ::atof is called, then we get an infinite loop
return std::atof( str.c_str() );
#else
return ::atof( str.c_str() );
#endif
}
inline int
atoi( const string& str )
{
#ifdef __MWERKS__
// -dw- if ::atoi is called, then we get an infinite loop
return std::atoi( str.c_str() );
#else
return ::atoi( str.c_str() );
#endif
}
// Defined the shared options class here
fgOPTIONS current_options;
// Constructor
fgOPTIONS::fgOPTIONS() :
// starting longitude in degrees (west = -)
// starting latitude in degrees (south = -)
// Default initial position is Globe, AZ (P13)
lon(-110.6642444),
lat( 33.3528917),
// North of the city of Globe
// lon(-110.7),
// lat( 33.4),
// North of the city of Globe
// lon(-110.742578),
// lat( 33.507122),
// Near where I used to live in Globe, AZ
// lon(-110.766000),
// lat( 33.377778),
// 10125 Jewell St. NE
// lon(-93.15),
// lat( 45.15),
// Near KHSP (Hot Springs, VA)
// lon(-79.8338964 + 0.01),
// lat( 37.9514564 + 0.008),
// (SEZ) SEDONA airport
// lon(-111.7884614 + 0.01),
// lat( 34.8486289 - 0.015),
// Jim Brennon's Kingmont Observatory
// lon(-121.1131667),
// lat( 38.8293917),
// Huaras, Peru (S09d 31.871' W077d 31.498')
// lon(-77.5249667),
// lat( -9.5311833),
// Eclipse Watching w73.5 n10 (approx) 18:00 UT
// lon(-73.5),
// lat( 10.0),
// Timms Hill (WI)
// lon(-90.1953055556),
// lat( 45.4511388889),
// starting altitude in meters (this will be reset to ground level
// if it is lower than the terrain
altitude(-9999.0),
// Initial Orientation
heading(270.0), // heading (yaw) angle in degress (Psi)
roll(0.0), // roll angle in degrees (Phi)
pitch(0.424), // pitch angle in degrees (Theta)
// Miscellaneous
game_mode(0),
splash_screen(1),
intro_music(1),
mouse_pointer(0),
pause(0),
// Features
hud_status(1),
panel_status(0),
sound(1),
// Flight Model options
flight_model(FGInterface::FG_LARCSIM),
// Rendering options
fog(FG_FOG_NICEST), // nicest
fov(55.0),
fullscreen(0),
shading(1),
skyblend(1),
textures(1),
wireframe(0),
xsize(640),
ysize(480),
// Scenery options
tile_diameter(5),
// HUD options
units(FG_UNITS_FEET),
tris_or_culled(0),
// Time options
time_offset(0),
start_gst(0),
start_lst(0)
{
// set initial values/defaults
char* envp = ::getenv( "FG_ROOT" );
if ( envp != NULL ) {
// fg_root could be anywhere, so default to environmental
// variable $FG_ROOT if it is set.
fg_root = envp;
} else {
// Otherwise, default to a random compiled in location if
// $FG_ROOT is not set. This can still be overridden from the
// command line or a config file.
#if defined( WIN32 )
fg_root = "\\FlightGear";
#elif defined( MACOS )
fg_root = ":";
#else
fg_root = "/usr/local/lib/FlightGear";
#endif
}
airport_id = ""; // default airport id
// initialize port config string list
port_options_list.erase ( port_options_list.begin(),
port_options_list.end() );
}
double
fgOPTIONS::parse_time(const string& time_in) {
char *time_str, num[256];
double hours, minutes, seconds;
double result = 0.0;
int sign = 1;
int i;
time_str = (char *)time_in.c_str();
// printf("parse_time(): %s\n", time_str);
// check for sign
if ( strlen(time_str) ) {
if ( time_str[0] == '+' ) {
sign = 1;
time_str++;
} else if ( time_str[0] == '-' ) {
sign = -1;
time_str++;
}
}
// printf("sign = %d\n", sign);
// get hours
if ( strlen(time_str) ) {
i = 0;
while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
num[i] = time_str[0];
time_str++;
i++;
}
if ( time_str[0] == ':' ) {
time_str++;
}
num[i] = '\0';
hours = atof(num);
// printf("hours = %.2lf\n", hours);
result += hours;
}
// get minutes
if ( strlen(time_str) ) {
i = 0;
while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
num[i] = time_str[0];
time_str++;
i++;
}
if ( time_str[0] == ':' ) {
time_str++;
}
num[i] = '\0';
minutes = atof(num);
// printf("minutes = %.2lf\n", minutes);
result += minutes / 60.0;
}
// get seconds
if ( strlen(time_str) ) {
i = 0;
while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
num[i] = time_str[0];
time_str++;
i++;
}
num[i] = '\0';
seconds = atof(num);
// printf("seconds = %.2lf\n", seconds);
result += seconds / 3600.0;
}
return(sign * result);
}
long int fgOPTIONS::parse_date( const string& date)
{
struct tm gmt;
char * date_str, num[256];
int i;
// initialize to zero
gmt.tm_sec = 0;
gmt.tm_min = 0;
gmt.tm_hour = 0;
gmt.tm_mday = 0;
gmt.tm_mon = 0;
gmt.tm_year = 0;
gmt.tm_isdst = 0; // ignore daylight savingtime for the moment
date_str = (char *)date.c_str();
// get year
if ( strlen(date_str) ) {
i = 0;
while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
num[i] = date_str[0];
date_str++;
i++;
}
if ( date_str[0] == ':' ) {
date_str++;
}
num[i] = '\0';
gmt.tm_year = atoi(num) - 1900;
}
// get month
if ( strlen(date_str) ) {
i = 0;
while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
num[i] = date_str[0];
date_str++;
i++;
}
if ( date_str[0] == ':' ) {
date_str++;
}
num[i] = '\0';
gmt.tm_mon = atoi(num) -1;
}
// get day
if ( strlen(date_str) ) {
i = 0;
while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
num[i] = date_str[0];
date_str++;
i++;
}
if ( date_str[0] == ':' ) {
date_str++;
}
num[i] = '\0';
gmt.tm_mday = atoi(num);
}
// get hour
if ( strlen(date_str) ) {
i = 0;
while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
num[i] = date_str[0];
date_str++;
i++;
}
if ( date_str[0] == ':' ) {
date_str++;
}
num[i] = '\0';
gmt.tm_hour = atoi(num);
}
// get minute
if ( strlen(date_str) ) {
i = 0;
while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
num[i] = date_str[0];
date_str++;
i++;
}
if ( date_str[0] == ':' ) {
date_str++;
}
num[i] = '\0';
gmt.tm_min = atoi(num);
}
// get second
if ( strlen(date_str) ) {
i = 0;
while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
num[i] = date_str[0];
date_str++;
i++;
}
if ( date_str[0] == ':' ) {
date_str++;
}
num[i] = '\0';
gmt.tm_sec = atoi(num);
}
time_t theTime = FGTime::cur_time_params->get_gmt(gmt.tm_year,
gmt.tm_mon,
gmt.tm_mday,
gmt.tm_hour,
gmt.tm_min,
gmt.tm_sec);
//printf ("Date is %s\n", ctime(&theTime));
//printf ("in seconds that is %d\n", theTime);
//exit(1);
return (theTime);
}
// parse degree in the form of [+/-]hhh:mm:ss
double
fgOPTIONS::parse_degree( const string& degree_str) {
double result = parse_time( degree_str );
// printf("Degree = %.4f\n", result);
return(result);
}
// parse time offset command line option
int
fgOPTIONS::parse_time_offset( const string& time_str) {
int result;
// printf("time offset = %s\n", time_str);
#ifdef HAVE_RINT
result = (int)rint(parse_time(time_str) * 3600.0);
#else
result = (int)(parse_time(time_str) * 3600.0);
#endif
// printf("parse_time_offset(): %d\n", result);
return( result );
}
// Parse --tile-diameter=n type option
int
fgOPTIONS::parse_tile_radius( const string& arg ) {
int radius = atoi( arg );
if ( radius < FG_RADIUS_MIN ) { radius = FG_RADIUS_MIN; }
if ( radius > FG_RADIUS_MAX ) { radius = FG_RADIUS_MAX; }
// printf("parse_tile_radius(): radius = %d\n", radius);
return(radius);
}
// Parse --fdm=abcdefg type option
int
fgOPTIONS::parse_fdm( const string& fm ) {
// printf("fdm = %s\n", fm);
if ( fm == "slew" ) {
return FGInterface::FG_SLEW;
} else if ( fm == "jsb" ) {
return FGInterface::FG_JSBSIM;
} else if ( (fm == "larcsim") || (fm == "LaRCsim") ) {
return FGInterface::FG_LARCSIM;
} else if ( fm == "external" ) {
return FGInterface::FG_EXTERNAL;
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Unknown fdm = " << fm );
exit(-1);
}
// we'll never get here, but it makes the compiler happy.
return -1;
}
// Parse --fov=x.xx type option
double
fgOPTIONS::parse_fov( const string& arg ) {
double fov = atof(arg);
if ( fov < FG_FOV_MIN ) { fov = FG_FOV_MIN; }
if ( fov > FG_FOV_MAX ) { fov = FG_FOV_MAX; }
// printf("parse_fov(): result = %.4f\n", fov);
return(fov);
}
// Parse serial port option --serial=/dev/ttyS1,nmea,4800,out
//
// Format is "--serial=device,format,baud,direction" where
//
// device = OS device name to be open()'ed
// format = {nmea, garmin,fgfs,rul}
// baud = {300, 1200, 2400, ..., 230400}
// direction = {in, out, bi}
bool
fgOPTIONS::parse_serial( const string& serial_str ) {
string::size_type pos;
// cout << "Serial string = " << serial_str << endl;
// a flailing attempt to see if the port config string has a
// chance at being valid
pos = serial_str.find(",");
if ( pos == string::npos ) {
FG_LOG( FG_GENERAL, FG_ALERT,
"Malformed serial port configure string" );
return false;
}
port_options_list.push_back( serial_str );
return true;
}
// Parse a single option
int fgOPTIONS::parse_option( const string& arg ) {
// General Options
if ( (arg == "--help") || (arg == "-h") ) {
// help/usage request
return(FG_OPTIONS_HELP);
} else if ( arg == "--disable-game-mode") {
game_mode = false;
} else if ( arg == "--enable-game-mode" ) {
game_mode = true;
} else if ( arg == "--disable-splash-screen" ) {
splash_screen = false;
} else if ( arg == "--enable-splash-screen" ) {
splash_screen = true;
} else if ( arg == "--disable-intro-music" ) {
intro_music = false;
} else if ( arg == "--enable-intro-music" ) {
intro_music = true;
} else if ( arg == "--disable-mouse-pointer" ) {
mouse_pointer = 1;
} else if ( arg == "--enable-mouse-pointer" ) {
mouse_pointer = 2;
} else if ( arg == "--disable-pause" ) {
pause = false;
} else if ( arg == "--enable-pause" ) {
pause = true;
} else if ( arg == "--disable-hud" ) {
hud_status = false;
} else if ( arg == "--enable-hud" ) {
hud_status = true;
} else if ( arg == "--disable-panel" ) {
panel_status = false;
} else if ( arg == "--enable-panel" ) {
panel_status = true;
fov *= 0.4232;
} else if ( arg == "--disable-sound" ) {
sound = false;
} else if ( arg == "--enable-sound" ) {
sound = true;
} else if ( arg.find( "--airport-id=") != string::npos ) {
airport_id = arg.substr( 13 );
} else if ( arg.find( "--lon=" ) != string::npos ) {
lon = parse_degree( arg.substr(6) );
} else if ( arg.find( "--lat=" ) != string::npos ) {
lat = parse_degree( arg.substr(6) );
} else if ( arg.find( "--altitude=" ) != string::npos ) {
if ( units == FG_UNITS_FEET ) {
altitude = atof( arg.substr(11) ) * FEET_TO_METER;
} else {
altitude = atof( arg.substr(11) );
}
} else if ( arg.find( "--heading=" ) != string::npos ) {
heading = atof( arg.substr(10) );
} else if ( arg.find( "--roll=" ) != string::npos ) {
roll = atof( arg.substr(7) );
} else if ( arg.find( "--pitch=" ) != string::npos ) {
pitch = atof( arg.substr(8) );
} else if ( arg.find( "--fg-root=" ) != string::npos ) {
fg_root = arg.substr( 10 );
} else if ( arg.find( "--fdm=" ) != string::npos ) {
flight_model = parse_fdm( arg.substr(6) );
} else if ( arg == "--fog-disable" ) {
fog = FG_FOG_DISABLED;
} else if ( arg == "--fog-fastest" ) {
fog = FG_FOG_FASTEST;
} else if ( arg == "--fog-nicest" ) {
fog = FG_FOG_NICEST;
} else if ( arg.find( "--fov=" ) != string::npos ) {
fov = parse_fov( arg.substr(6) );
} else if ( arg == "--disable-fullscreen" ) {
fullscreen = false;
} else if ( arg== "--enable-fullscreen") {
fullscreen = true;
} else if ( arg == "--shading-flat") {
shading = 0;
} else if ( arg == "--shading-smooth") {
shading = 1;
} else if ( arg == "--disable-skyblend") {
skyblend = false;
} else if ( arg== "--enable-skyblend" ) {
skyblend = true;
} else if ( arg == "--disable-textures" ) {
textures = false;
} else if ( arg == "--enable-textures" ) {
textures = true;
} else if ( arg == "--disable-wireframe" ) {
wireframe = false;
} else if ( arg == "--enable-wireframe" ) {
wireframe = true;
} else if ( arg.find( "--geometry=" ) != string::npos ) {
string geometry = arg.substr( 11 );
if ( geometry == "640x480" ) {
xsize = 640;
ysize = 480;
} else if ( geometry == "800x600" ) {
xsize = 800;
ysize = 600;
} else if ( geometry == "1024x768" ) {
xsize = 1024;
ysize = 768;
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Unknown geometry: " << geometry );
exit(-1);
}
} else if ( arg == "--units-feet" ) {
units = FG_UNITS_FEET;
} else if ( arg == "--units-meters" ) {
units = FG_UNITS_METERS;
} else if ( arg.find( "--tile-radius=" ) != string::npos ) {
tile_radius = parse_tile_radius( arg.substr(14) );
tile_diameter = tile_radius * 2 + 1;
} else if ( arg.find( "--time-offset=" ) != string::npos ) {
time_offset = parse_time_offset( (arg.substr(14)) );
} else if (arg.find( "--start-date-gmt=") != string::npos ) {
start_gst = parse_date( (arg.substr(17)) );
} else if (arg.find( "--start-data-lst=") != string::npos ) {
start_lst = parse_date( (arg.substr(17)) );
} else if ( arg == "--hud-tris" ) {
tris_or_culled = 0;
} else if ( arg == "--hud-culled" ) {
tris_or_culled = 1;
} else if ( arg.find( "--serial=" ) != string::npos ) {
parse_serial( arg.substr(9) );
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Unknown option '" << arg << "'" );
return FG_OPTIONS_ERROR;
}
return FG_OPTIONS_OK;
}
// Parse the command line options
int fgOPTIONS::parse_command_line( int argc, char **argv ) {
int i = 1;
int result;
FG_LOG(FG_GENERAL, FG_INFO, "Processing command line arguments");
while ( i < argc ) {
FG_LOG( FG_GENERAL, FG_DEBUG, "argv[" << i << "] = " << argv[i] );
result = parse_option(argv[i]);
if ( (result == FG_OPTIONS_HELP) || (result == FG_OPTIONS_ERROR) ) {
return(result);
}
i++;
}
return(FG_OPTIONS_OK);
}
// Parse config file options
int fgOPTIONS::parse_config_file( const string& path ) {
fg_gzifstream in( path );
if ( !in )
return(FG_OPTIONS_ERROR);
FG_LOG( FG_GENERAL, FG_INFO, "Processing config file: " << path );
in >> skipcomment;
while ( !in.eof() )
{
string line;
getline( in, line );
if ( parse_option( line ) == FG_OPTIONS_ERROR ) {
FG_LOG( FG_GENERAL, FG_ALERT,
"Config file parse error: " << path << " '"
<< line << "'" );
exit(-1);
}
in >> skipcomment;
}
return FG_OPTIONS_OK;
}
// Print usage message
void fgOPTIONS::usage ( void ) {
printf("Usage: fg [ options ... ]\n");
printf("\n");
printf("General Options:\n");
printf("\t--help -h: print usage\n");
printf("\t--fg-root=path: specify the root path for all the data files\n");
printf("\t--disable-game-mode: disable full-screen game mode\n");
printf("\t--enable-game-mode: enable full-screen game mode\n");
printf("\t--disable-splash-screen: disable splash screen\n");
printf("\t--enable-splash-screen: enable splash screen\n");
printf("\t--disable-intro-music: disable introduction music\n");
printf("\t--enable-intro-music: enable introduction music\n");
printf("\t--disable-mouse-pointer: disable extra mouse pointer\n");
printf("\t--enable-mouse-pointer: enable extra mouse pointer (i.e. for\n");
printf("\t\tfull screen voodoo/voodoo-II based cards.)\n");
printf("\t--disable-pause: start out in an active state\n");
printf("\t--enable-pause: start out in a paused state\n");
printf("\n");
printf("Features:\n");
printf("\t--disable-hud: disable heads up display\n");
printf("\t--enable-hud: enable heads up display\n");
printf("\t--disable-panel: disable instrument panel\n");
printf("\t--enable-panel: enable instrumetn panel\n");
printf("\t--disable-sound: disable sound effects\n");
printf("\t--enable-sound: enable sound effects\n");
printf("\n");
printf("Flight Model:\n");
printf("\t--fdm=abcd: one of slew, jsb, larcsim, or external\n");
printf("\n");
printf("Initial Position and Orientation:\n");
printf("\t--airport-id=ABCD: specify starting postion by airport id\n");
printf("\t--lon=degrees: starting longitude in degrees (west = -)\n");
printf("\t--lat=degrees: starting latitude in degrees (south = -)\n");
printf("\t--altitude=feet: starting altitude in feet\n");
printf("\t\t(unless --units-meters specified\n");
printf("\t--heading=degrees: heading (yaw) angle in degress (Psi)\n");
printf("\t--roll=degrees: roll angle in degrees (Phi)\n");
printf("\t--pitch=degrees: pitch angle in degrees (Theta)\n");
printf("\n");
printf("Rendering Options:\n");
printf("\t--fog-disable: disable fog/haze\n");
printf("\t--fog-fastest: enable fastest fog/haze\n");
printf("\t--fog-nicest: enable nicest fog/haze\n");
printf("\t--fov=xx.x: specify initial field of view angle in degrees\n");
printf("\t--disable-fullscreen: disable fullscreen mode\n");
printf("\t--enable-fullscreen: enable fullscreen mode\n");
printf("\t--shading-flat: enable flat shading\n");
printf("\t--shading-smooth: enable smooth shading\n");
printf("\t--disable-skyblend: disable sky blending\n");
printf("\t--enable-skyblend: enable sky blending\n");
printf("\t--disable-textures: disable textures\n");
printf("\t--enable-textures: enable textures\n");
printf("\t--disable-wireframe: disable wireframe drawing mode\n");
printf("\t--enable-wireframe: enable wireframe drawing mode\n");
printf("\t--geometry=WWWxHHH: window geometry: 640x480, 800x600, etc.\n");
printf("\n");
printf("Scenery Options:\n");
printf("\t--tile-radius=n: specify tile radius, must be 1 - 4\n");
printf("\n");
printf("Hud Options:\n");
printf("\t--units-feet: Hud displays units in feet\n");
printf("\t--units-meters: Hud displays units in meters\n");
printf("\t--hud-tris: Hud displays number of triangles rendered\n");
printf("\t--hud-culled: Hud displays percentage of triangles culled\n");
printf("\n");
printf("Time Options:\n");
printf("\t--time-offset=[+-]hh:mm:ss: offset local time by this amount\n");
printf("\t--start-date-gmt=yyyy:mm:dd:hh:mm:ss: specify a starting date/time. Time is Greenwich Mean Time\n");
printf("\t--start-date-lst=yyyy:mm:dd:hh:mm:ss: specify a starting date/time. Uses local sidereal time\n");
}
// Destructor
fgOPTIONS::~fgOPTIONS( void ) {
}
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