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flightgear/src/Main/fg_init.cxx
frohlich 16a2bb0118 Modified Files: 
src/ATC/AIPlane.cxx src/ATC/ATC.cxx src/ATC/ATCDialog.cxx
	src/ATC/ATCmgr.cxx src/ATC/Makefile.am src/ATC/approach.cxx
	src/ATC/atis.cxx src/ATC/ground.cxx src/ATC/tower.cxx
	src/GUI/mouse.cxx src/Main/Makefile.am src/Main/fg_init.cxx
	src/Main/fg_props.cxx src/Main/globals.cxx
	src/Main/globals.hxx src/Main/main.cxx src/Main/renderer.cxx
	src/Model/acmodel.cxx src/Scenery/scenery.cxx
	src/Scenery/scenery.hxx src/Scenery/tilemgr.cxx
	src/Scenery/tilemgr.hxx
Removed Files:
	src/ATC/ATCdisplay.cxx src/ATC/ATCdisplay.hxx:
	Remove unused functions and the disabled ATC display.
2007-05-09 20:41:08 +00:00

1895 lines
63 KiB
C++
Raw Blame History

// fg_init.cxx -- Flight Gear top level initialization routines
//
// Written by Curtis Olson, started August 1997.
//
// Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
// For BC 5.01 this must be included before OpenGL includes.
#ifdef SG_MATH_EXCEPTION_CLASH
# include <math.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h> // strcmp()
#if defined( unix ) || defined( __CYGWIN__ )
# include <unistd.h> // for gethostname()
#endif
// work around a stdc++ lib bug in some versions of linux, but doesn't
// seem to hurt to have this here for all versions of Linux.
#ifdef linux
# define _G_NO_EXTERN_TEMPLATES
#endif
#include <simgear/compiler.h>
#include STL_STRING
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/structure/event_mgr.hxx>
#include <simgear/math/point3d.hxx>
#include <simgear/math/polar3d.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/misc/interpolator.hxx>
#include <simgear/scene/material/matlib.hxx>
#include <simgear/timing/sg_time.hxx>
#include <simgear/timing/lowleveltime.h>
#include <Aircraft/aircraft.hxx>
#include <Aircraft/replay.hxx>
#include <Airports/apt_loader.hxx>
#include <Airports/runways.hxx>
#include <Airports/simple.hxx>
#include <AIModel/AIManager.hxx>
#include <ATC/ATCmgr.hxx>
#include <ATC/AIMgr.hxx>
#include <Autopilot/route_mgr.hxx>
#include <Autopilot/xmlauto.hxx>
#include <Cockpit/cockpit.hxx>
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.hxx>
#ifdef ENABLE_SP_FDM
#include <FDM/SP/ADA.hxx>
#include <FDM/SP/ACMS.hxx>
#endif
#include <FDM/Balloon.h>
#include <FDM/ExternalNet/ExternalNet.hxx>
#include <FDM/ExternalPipe/ExternalPipe.hxx>
#include <FDM/JSBSim/JSBSim.hxx>
#include <FDM/LaRCsim/LaRCsim.hxx>
#include <FDM/MagicCarpet.hxx>
#include <FDM/UFO.hxx>
#include <FDM/NullFDM.hxx>
#include <FDM/YASim/YASim.hxx>
#include <GUI/new_gui.hxx>
#include <Include/general.hxx>
#include <Input/input.hxx>
#include <Instrumentation/instrument_mgr.hxx>
#include <Model/acmodel.hxx>
#include <AIModel/submodel.hxx>
#include <AIModel/AIManager.hxx>
#include <Navaids/navdb.hxx>
#include <Navaids/navlist.hxx>
#include <Scenery/scenery.hxx>
#include <Scenery/tilemgr.hxx>
#include <Scripting/NasalSys.hxx>
#include <Sound/fg_fx.hxx>
#include <Sound/beacon.hxx>
#include <Sound/morse.hxx>
#include <Sound/voice.hxx>
#include <Systems/system_mgr.hxx>
#include <Time/light.hxx>
#include <Time/sunsolver.hxx>
#include <Time/tmp.hxx>
#include <Traffic/TrafficMgr.hxx>
#include <MultiPlayer/multiplaymgr.hxx>
#include <Environment/environment_mgr.hxx>
#include "fg_init.hxx"
#include "fg_io.hxx"
#include "fg_commands.hxx"
#include "fg_props.hxx"
#include "options.hxx"
#include "globals.hxx"
#include "logger.hxx"
#include "viewmgr.hxx"
#include "main.hxx"
#if defined(FX) && defined(XMESA)
#include <GL/xmesa.h>
#endif
SG_USING_STD(string);
class Sound;
extern const char *default_root;
float init_volume;
// Scan the command line options for the specified option and return
// the value.
static string fgScanForOption( const string& option, int argc, char **argv ) {
int i = 1;
if (hostname == NULL)
{
char _hostname[256];
gethostname(_hostname, 256);
hostname = strdup(_hostname);
free_hostname = true;
}
SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
int len = option.length();
while ( i < argc ) {
SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
string arg = argv[i];
if ( arg.find( option ) == 0 ) {
return arg.substr( len );
}
i++;
}
return "";
}
// Scan the user config files for the specified option and return
// the value.
static string fgScanForOption( const string& option, const string& path ) {
sg_gzifstream in( path );
if ( !in.is_open() ) {
return "";
}
SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
int len = option.length();
in >> skipcomment;
#ifndef __MWERKS__
while ( ! in.eof() ) {
#else
char c = '\0';
while ( in.get(c) && c != '\0' ) {
in.putback(c);
#endif
string line;
#if defined( macintosh )
getline( in, line, '\r' );
#else
getline( in, line, '\n' );
#endif
// catch extraneous (DOS) line ending character
if ( line[line.length() - 1] < 32 ) {
line = line.substr( 0, line.length()-1 );
}
if ( line.find( option ) == 0 ) {
return line.substr( len );
}
in >> skipcomment;
}
return "";
}
// Scan the user config files for the specified option and return
// the value.
static string fgScanForOption( const string& option ) {
string arg("");
#if defined( unix ) || defined( __CYGWIN__ )
// Next check home directory for .fgfsrc.hostname file
if ( arg.empty() ) {
if ( homedir != NULL ) {
SGPath config( homedir );
config.append( ".fgfsrc" );
config.concat( "." );
config.concat( hostname );
arg = fgScanForOption( option, config.str() );
}
}
#endif
// Next check home directory for .fgfsrc file
if ( arg.empty() ) {
if ( homedir != NULL ) {
SGPath config( homedir );
config.append( ".fgfsrc" );
arg = fgScanForOption( option, config.str() );
}
}
if ( arg.empty() ) {
// Check for $fg_root/system.fgfsrc
SGPath config( globals->get_fg_root() );
config.append( "system.fgfsrc" );
arg = fgScanForOption( option, config.str() );
}
return arg;
}
// Read in configuration (files and command line options) but only set
// fg_root
bool fgInitFGRoot ( int argc, char **argv ) {
string root;
// First parse command line options looking for --fg-root=, this
// will override anything specified in a config file
root = fgScanForOption( "--fg-root=", argc, argv);
// Check in one of the user configuration files.
if (root.empty() )
root = fgScanForOption( "--fg-root=" );
// Next check if fg-root is set as an env variable
if ( root.empty() ) {
char *envp = ::getenv( "FG_ROOT" );
if ( envp != NULL ) {
root = envp;
}
}
// Otherwise, default to a random compiled-in location if we can't
// find fg-root any other way.
if ( root.empty() ) {
#if defined( __CYGWIN__ )
root = "/FlightGear";
#elif defined( WIN32 )
root = "\\FlightGear";
#elif defined(OSX_BUNDLE)
/* the following code looks for the base package directly inside
the application bundle. This can be changed fairly easily by
fiddling with the code below. And yes, I know it's ugly and verbose.
*/
CFBundleRef appBundle = CFBundleGetMainBundle();
CFURLRef appUrl = CFBundleCopyBundleURL(appBundle);
CFRelease(appBundle);
// look for a 'data' subdir directly inside the bundle : is there
// a better place? maybe in Resources? I don't know ...
CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, appUrl, CFSTR("data"), true);
// now convert down to a path, and the a c-string
CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
// tidy up.
CFRelease(appBundle);
CFRelease(dataDir);
CFRelease(path);
#else
root = PKGLIBDIR;
#endif
}
SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
globals->set_fg_root(root);
return true;
}
// Read in configuration (files and command line options) but only set
// aircraft
bool fgInitFGAircraft ( int argc, char **argv ) {
string aircraft;
// First parse command line options looking for --aircraft=, this
// will override anything specified in a config file
aircraft = fgScanForOption( "--aircraft=", argc, argv );
// Check in one of the user configuration files.
if ( aircraft.empty() )
aircraft = fgScanForOption( "--aircraft=" );
// if an aircraft was specified, set the property name
if ( !aircraft.empty() ) {
SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
fgSetString("/sim/aircraft", aircraft.c_str() );
} else {
SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
}
return true;
}
// Return the current base package version
string fgBasePackageVersion() {
SGPath base_path( globals->get_fg_root() );
base_path.append("version");
sg_gzifstream in( base_path.str() );
if ( !in.is_open() ) {
SGPath old_path( globals->get_fg_root() );
old_path.append( "Thanks" );
sg_gzifstream old( old_path.str() );
if ( !old.is_open() ) {
return "[none]";
} else {
return "[old version]";
}
}
string version;
in >> version;
return version;
}
// Initialize the localization
SGPropertyNode *fgInitLocale(const char *language) {
SGPropertyNode *c_node = NULL, *d_node = NULL;
SGPropertyNode *intl = fgGetNode("/sim/intl");
SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
// localization not defined
if (!intl)
return NULL;
//
// Select the proper language from the list
//
vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
for (unsigned int i = 0; i < locale.size(); i++) {
vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
for (unsigned int j = 0; j < lang.size(); j++) {
if (!strcmp(lang[j]->getStringValue(), language)) {
c_node = locale[i];
break;
}
}
}
// Get the defaults
d_node = intl->getChild("locale");
if (!c_node)
c_node = d_node;
// Check for localized font
SGPropertyNode *font_n = c_node->getNode("font", true);
if ( !strcmp(font_n->getStringValue(), "") )
font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
//
// Load the default strings
//
SGPath d_path( globals->get_fg_root() );
const char *d_path_str = d_node->getStringValue("strings");
if (!d_path_str) {
SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << d_node->getPath() << "/strings.");
return NULL;
}
d_path.append(d_path_str);
SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
SGPropertyNode *strings = c_node->getNode("strings");
try {
readProperties(d_path.str(), strings);
} catch (const sg_exception &e) {
SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
return NULL;
}
//
// Load the language specific strings
//
if (c_node != d_node) {
SGPath c_path( globals->get_fg_root() );
const char *c_path_str = c_node->getStringValue("strings");
if (!c_path_str) {
SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
return NULL;
}
c_path.append(c_path_str);
SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
try {
readProperties(c_path.str(), strings);
} catch (const sg_exception &e) {
SG_LOG(SG_GENERAL, SG_ALERT,
"Unable to read the localized strings from " << c_path.str());
return NULL;
}
}
return c_node;
}
// Initialize the localization routines
bool fgDetectLanguage() {
char *language = ::getenv("LANG");
if (language == NULL) {
SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
language = "C";
}
SGPropertyNode *locale = fgInitLocale(language);
if (!locale) {
SG_LOG(SG_GENERAL, SG_ALERT,
"No internationalization settings specified in preferences.xml" );
return false;
}
globals->set_locale( locale );
return true;
}
// Attempt to locate and parse the various non-XML config files in order
// from least precidence to greatest precidence
static void
do_options (int argc, char ** argv)
{
// Check for $fg_root/system.fgfsrc
SGPath config( globals->get_fg_root() );
config.append( "system.fgfsrc" );
fgParseOptions(config.str());
#if defined( unix ) || defined( __CYGWIN__ )
config.concat( "." );
config.concat( hostname );
fgParseOptions(config.str());
#endif
// Check for ~/.fgfsrc
if ( homedir != NULL ) {
config.set( homedir );
config.append( ".fgfsrc" );
fgParseOptions(config.str());
}
#if defined( unix ) || defined( __CYGWIN__ )
// Check for ~/.fgfsrc.hostname
config.concat( "." );
config.concat( hostname );
fgParseOptions(config.str());
#endif
// Parse remaining command line options
// These will override anything specified in a config file
fgParseArgs(argc, argv);
}
static string fgFindAircraftPath( const SGPath &path, const string &aircraft,
SGPropertyNode *cache, int depth = 0 )
{
const int MAXDEPTH = 1;
ulDirEnt* dire;
ulDir *dirp = ulOpenDir(path.str().c_str());
if (dirp == NULL) {
cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
exit(-1);
}
string result;
while ((dire = ulReadDir(dirp)) != NULL) {
if (dire->d_isdir) {
if (depth > MAXDEPTH)
continue;
if (!strcmp("CVS", dire->d_name) || !strcmp(".", dire->d_name)
|| !strcmp("..", dire->d_name) || !strcmp("AI", dire->d_name))
continue;
SGPath next = path;
next.append(dire->d_name);
result = fgFindAircraftPath( next, aircraft, cache, depth + 1 );
if ( ! result.empty() )
break;
} else {
int len = strlen(dire->d_name);
if (len < 9 || strcmp(dire->d_name + len - 8, "-set.xml"))
continue;
// create cache node
int i = 0;
while (1)
if (!cache->getChild("aircraft", i++, false))
break;
SGPropertyNode *n, *entry = cache->getChild("aircraft", --i, true);
n = entry->getNode("file", true);
n->setStringValue(dire->d_name);
n->setAttribute(SGPropertyNode::USERARCHIVE, true);
n = entry->getNode("path", true);
n->setStringValue(path.str().c_str());
n->setAttribute(SGPropertyNode::USERARCHIVE, true);
if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
result = path.str();
break;
}
}
}
ulCloseDir(dirp);
return result;
}
// Read in configuration (file and command line)
bool fgInitConfig ( int argc, char **argv ) {
// First, set some sane default values
fgSetDefaults();
// Read global preferences from $FG_ROOT/preferences.xml
SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
fgLoadProps("preferences.xml", globals->get_props());
SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
// Detect the required language as early as possible
if ( !fgDetectLanguage() ) {
return false;
}
SGPropertyNode autosave;
#ifdef _MSC_VER
char *envp = ::getenv( "APPDATA" );
if (envp != NULL ) {
SGPath config( envp );
config.append( "flightgear.org" );
#else
if ( homedir != NULL ) {
SGPath config( homedir );
config.append( ".fgfs" );
#endif
fgSetString("/sim/fg-home", config.c_str());
config.append( "autosave.xml" );
SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
try {
readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
} catch (...) {
SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
}
SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
}
SGPropertyNode *cache_root = autosave.getNode("sim/startup/path-cache", true);
// Scan user config files and command line for a specified aircraft.
fgInitFGAircraft(argc, argv);
string aircraft = fgGetString( "/sim/aircraft", "" );
if ( aircraft.size() > 0 ) {
SGPath aircraft_search( globals->get_fg_root() );
aircraft_search.append( "Aircraft" );
string aircraft_set = aircraft + "-set.xml";
string result;
// check if the *-set.xml file is already in the cache
if (globals->get_fg_root() == cache_root->getStringValue("fg-root", "")) {
vector<SGPropertyNode_ptr> cache = cache_root->getChildren("aircraft");
for (unsigned int i = 0; i < cache.size(); i++) {
const char *name = cache[i]->getStringValue("file", "");
if (aircraft_set == name) {
const char *path = cache[i]->getStringValue("path", "");
SGPath xml(path);
xml.append(name);
if (xml.exists())
result = path;
break;
}
}
}
if (result.empty()) {
// prepare cache for rescan
SGPropertyNode *n = cache_root->getNode("fg-root", true);
n->setStringValue(globals->get_fg_root().c_str());
n->setAttribute(SGPropertyNode::USERARCHIVE, true);
cache_root->removeChildren("aircraft");
result = fgFindAircraftPath( aircraft_search, aircraft_set, cache_root );
}
if ( !result.empty() ) {
fgSetString( "/sim/aircraft-dir", result.c_str() );
SGPath full_name( result );
full_name.append( aircraft_set );
SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
<< " from " << full_name.str());
try {
readProperties( full_name.str(), globals->get_props() );
} catch ( const sg_exception &e ) {
string message = "Error reading default aircraft: ";
message += e.getFormattedMessage();
SG_LOG(SG_INPUT, SG_ALERT, message);
exit(2);
}
} else {
SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
<< aircraft );
return false;
}
} else {
SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
}
copyProperties(&autosave, globals->get_props());
// parse options after loading aircraft to ensure any user
// overrides of defaults are honored.
do_options(argc, argv);
return true;
}
#if 0
//
// This function is never used, but maybe useful in the future ???
//
// Preset lon/lat given an airport id
static bool fgSetPosFromAirportID( const string& id ) {
FGAirport *a;
// double lon, lat;
SG_LOG( SG_GENERAL, SG_INFO,
"Attempting to set starting position from airport code " << id );
if ( fgFindAirportID( id, &a ) ) {
// presets
fgSetDouble("/sim/presets/longitude-deg", a->longitude );
fgSetDouble("/sim/presets/latitude-deg", a->latitude );
// other code depends on the actual postition being set so set
// that as well
fgSetDouble("/position/longitude-deg", a->longitude );
fgSetDouble("/position/latitude-deg", a->latitude );
SG_LOG( SG_GENERAL, SG_INFO,
"Position for " << id << " is (" << a->longitude
<< ", " << a->latitude << ")" );
return true;
} else {
return false;
}
}
#endif
// Set current tower position lon/lat given an airport id
static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
// tower height hard coded for now...
float towerheight=50.0f;
// make a little off the heading for 1 runway airports...
float fudge_lon = fabs(sin(hdg)) * .003f;
float fudge_lat = .003f - fudge_lon;
const FGAirport *a = fgFindAirportID( id);
if ( a) {
fgSetDouble("/sim/tower/longitude-deg", a->getLongitude() + fudge_lon);
fgSetDouble("/sim/tower/latitude-deg", a->getLatitude() + fudge_lat);
fgSetDouble("/sim/tower/altitude-ft", a->getElevation() + towerheight);
return true;
} else {
return false;
}
}
struct FGTowerLocationListener : SGPropertyChangeListener {
void valueChanged(SGPropertyNode* node) {
const double hdg = fgGetDouble( "/orientation/heading-deg", 0);
const string id(node->getStringValue());
fgSetTowerPosFromAirportID(id, hdg);
}
};
void fgInitTowerLocationListener() {
fgGetNode("/sim/tower/airport-id", true)
->addChangeListener( new FGTowerLocationListener(), true );
}
// Set current_options lon/lat given an airport id and heading (degrees)
static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
FGRunway r;
if ( id.length() ) {
// set initial position from runway and heading
SG_LOG( SG_GENERAL, SG_INFO,
"Attempting to set starting position from airport code "
<< id << " heading " << tgt_hdg );
if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Failed to find a good runway for " << id << '\n' );
return false;
}
} else {
return false;
}
double lat2, lon2, az2;
double heading = r._heading;
double azimuth = heading + 180.0;
while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
SG_LOG( SG_GENERAL, SG_INFO,
"runway = " << r._lon << ", " << r._lat
<< " length = " << r._length * SG_FEET_TO_METER
<< " heading = " << azimuth );
geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth,
r._length * SG_FEET_TO_METER * 0.5 - 5.0,
&lat2, &lon2, &az2 );
if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
double olat, olon;
double odist = fgGetDouble("/sim/presets/offset-distance");
odist *= SG_NM_TO_METER;
double oaz = azimuth;
if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON ) {
oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
heading = tgt_hdg;
}
while ( oaz >= 360.0 ) { oaz -= 360.0; }
geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
lat2=olat;
lon2=olon;
}
// presets
fgSetDouble("/sim/presets/longitude-deg", lon2 );
fgSetDouble("/sim/presets/latitude-deg", lat2 );
fgSetDouble("/sim/presets/heading-deg", heading );
// other code depends on the actual values being set ...
fgSetDouble("/position/longitude-deg", lon2 );
fgSetDouble("/position/latitude-deg", lat2 );
fgSetDouble("/orientation/heading-deg", heading );
SG_LOG( SG_GENERAL, SG_INFO,
"Position for " << id << " is ("
<< lon2 << ", "
<< lat2 << ") new heading is "
<< heading );
return true;
}
// Set current_options lon/lat given an airport id and runway number
static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
FGRunway r;
if ( id.length() ) {
// set initial position from airport and runway number
SG_LOG( SG_GENERAL, SG_INFO,
"Attempting to set starting position for "
<< id << ":" << rwy );
if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
"Failed to find runway " << rwy <<
" at airport " << id << ". Using default runway." );
return false;
}
} else {
return false;
}
double lat2, lon2, az2;
double heading = r._heading;
double azimuth = heading + 180.0;
while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
SG_LOG( SG_GENERAL, SG_INFO,
"runway = " << r._lon << ", " << r._lat
<< " length = " << r._length * SG_FEET_TO_METER
<< " heading = " << azimuth );
geo_direct_wgs_84 ( 0, r._lat, r._lon,
azimuth,
r._length * SG_FEET_TO_METER * 0.5 - 5.0,
&lat2, &lon2, &az2 );
if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
{
double olat, olon;
double odist = fgGetDouble("/sim/presets/offset-distance");
odist *= SG_NM_TO_METER;
double oaz = azimuth;
if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
{
oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
heading = fgGetDouble("/sim/presets/heading-deg");
}
while ( oaz >= 360.0 ) { oaz -= 360.0; }
geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
lat2=olat;
lon2=olon;
}
// presets
fgSetDouble("/sim/presets/longitude-deg", lon2 );
fgSetDouble("/sim/presets/latitude-deg", lat2 );
fgSetDouble("/sim/presets/heading-deg", heading );
// other code depends on the actual values being set ...
fgSetDouble("/position/longitude-deg", lon2 );
fgSetDouble("/position/latitude-deg", lat2 );
fgSetDouble("/orientation/heading-deg", heading );
SG_LOG( SG_GENERAL, SG_INFO,
"Position for " << id << " is ("
<< lon2 << ", "
<< lat2 << ") new heading is "
<< heading );
return true;
}
static void fgSetDistOrAltFromGlideSlope() {
// cout << "fgSetDistOrAltFromGlideSlope()" << endl;
string apt_id = fgGetString("/sim/presets/airport-id");
double gs = fgGetDouble("/sim/presets/glideslope-deg")
* SG_DEGREES_TO_RADIANS ;
double od = fgGetDouble("/sim/presets/offset-distance");
double alt = fgGetDouble("/sim/presets/altitude-ft");
double apt_elev = 0.0;
if ( ! apt_id.empty() ) {
apt_elev = fgGetAirportElev( apt_id );
if ( apt_elev < -9990.0 ) {
apt_elev = 0.0;
}
} else {
apt_elev = 0.0;
}
if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
// set altitude from glideslope and offset-distance
od *= SG_NM_TO_METER * SG_METER_TO_FEET;
alt = fabs(od*tan(gs)) + apt_elev;
fgSetDouble("/sim/presets/altitude-ft", alt);
fgSetBool("/sim/presets/onground", false);
SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
<< alt << " ft" );
} else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
// set offset-distance from glideslope and altitude
od = (alt - apt_elev) / tan(gs);
od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
fgSetDouble("/sim/presets/offset-distance", od);
fgSetBool("/sim/presets/onground", false);
SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
<< od << " nm" );
} else if( fabs(gs) > 0.01 ) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Glideslope given but not altitude or offset-distance." );
SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
fgSetDouble("/sim/presets/glideslope-deg", 0);
fgSetBool("/sim/presets/onground", true);
}
}
// Set current_options lon/lat given an airport id and heading (degrees)
static bool fgSetPosFromNAV( const string& id, const double& freq ) {
FGNavRecord *nav
= globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
// set initial position from runway and heading
if ( nav != NULL ) {
SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
<< id << ":" << freq );
double lon = nav->get_lon();
double lat = nav->get_lat();
if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
{
double odist = fgGetDouble("/sim/presets/offset-distance")
* SG_NM_TO_METER;
double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
+ 180.0;
while ( oaz >= 360.0 ) { oaz -= 360.0; }
double olat, olon, az2;
geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
lat = olat;
lon = olon;
}
// presets
fgSetDouble("/sim/presets/longitude-deg", lon );
fgSetDouble("/sim/presets/latitude-deg", lat );
// other code depends on the actual values being set ...
fgSetDouble("/position/longitude-deg", lon );
fgSetDouble("/position/latitude-deg", lat );
fgSetDouble("/orientation/heading-deg",
fgGetDouble("/sim/presets/heading-deg") );
SG_LOG( SG_GENERAL, SG_INFO,
"Position for " << id << ":" << freq << " is ("
<< lon << ", "<< lat << ")" );
return true;
} else {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
<< id << ":" << freq );
return false;
}
}
// Set current_options lon/lat given an aircraft carrier id
static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
// set initial position from runway and heading
SGGeod geodPos;
double heading;
SGVec3d uvw;
if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
double lon = geodPos.getLongitudeDeg();
double lat = geodPos.getLatitudeDeg();
double alt = geodPos.getElevationFt();
SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
<< carrier << " at lat = " << lat << ", lon = " << lon
<< ", alt = " << alt << ", heading = " << heading);
fgSetDouble("/sim/presets/longitude-deg", lon);
fgSetDouble("/sim/presets/latitude-deg", lat);
fgSetDouble("/sim/presets/altitude-ft", alt);
fgSetDouble("/sim/presets/heading-deg", heading);
fgSetDouble("/position/longitude-deg", lon);
fgSetDouble("/position/latitude-deg", lat);
fgSetDouble("/position/altitude-ft", alt);
fgSetDouble("/orientation/heading-deg", heading);
fgSetString("/sim/presets/speed-set", "UVW");
fgSetDouble("/velocities/uBody-fps", uvw(0));
fgSetDouble("/velocities/vBody-fps", uvw(1));
fgSetDouble("/velocities/wBody-fps", uvw(2));
fgSetDouble("/sim/presets/uBody-fps", uvw(0));
fgSetDouble("/sim/presets/vBody-fps", uvw(1));
fgSetDouble("/sim/presets/wBody-fps", uvw(2));
fgSetBool("/sim/presets/onground", true);
return true;
} else {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
<< carrier );
return false;
}
}
// Set current_options lon/lat given an airport id and heading (degrees)
static bool fgSetPosFromFix( const string& id ) {
FGFix fix;
// set initial position from runway and heading
if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
<< id );
double lon = fix.get_lon();
double lat = fix.get_lat();
if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
{
double odist = fgGetDouble("/sim/presets/offset-distance")
* SG_NM_TO_METER;
double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
+ 180.0;
while ( oaz >= 360.0 ) { oaz -= 360.0; }
double olat, olon, az2;
geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
lat = olat;
lon = olon;
}
// presets
fgSetDouble("/sim/presets/longitude-deg", lon );
fgSetDouble("/sim/presets/latitude-deg", lat );
// other code depends on the actual values being set ...
fgSetDouble("/position/longitude-deg", lon );
fgSetDouble("/position/latitude-deg", lat );
fgSetDouble("/orientation/heading-deg",
fgGetDouble("/sim/presets/heading-deg") );
SG_LOG( SG_GENERAL, SG_INFO,
"Position for " << id << " is ("
<< lon << ", "<< lat << ")" );
return true;
} else {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
<< id );
return false;
}
}
/**
* Initialize vor/ndb/ils/fix list management and query systems (as
* well as simple airport db list)
*/
bool
fgInitNav ()
{
SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
SGPath aptdb( globals->get_fg_root() );
aptdb.append( "Airports/apt.dat" );
SGPath p_metar( globals->get_fg_root() );
p_metar.append( "Airports/metar.dat" );
FGAirportList *airports = new FGAirportList();
globals->set_airports( airports );
FGRunwayList *runways = new FGRunwayList();
globals->set_runways( runways );
fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
FGNavList *navlist = new FGNavList;
FGNavList *loclist = new FGNavList;
FGNavList *gslist = new FGNavList;
FGNavList *dmelist = new FGNavList;
FGNavList *mkrlist = new FGNavList;
FGNavList *tacanlist = new FGNavList;
FGNavList *carrierlist = new FGNavList;
FGTACANList *channellist = new FGTACANList;
globals->set_navlist( navlist );
globals->set_loclist( loclist );
globals->set_gslist( gslist );
globals->set_dmelist( dmelist );
globals->set_mkrlist( mkrlist );
globals->set_tacanlist( tacanlist );
globals->set_carrierlist( carrierlist );
globals->set_channellist( channellist );
if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Problems loading one or more navigational database" );
}
if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
// align all the localizers with their corresponding runways
// since data sources are good for cockpit navigation
// purposes, but not always to the error tolerances needed to
// exactly place these items.
double threshold
= fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
5.0 );
fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
}
SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
SGPath p_fix( globals->get_fg_root() );
p_fix.append( "Navaids/fix.dat" );
FGFixList *fixlist = new FGFixList;
fixlist->init( p_fix );
globals->set_fixlist( fixlist );
SG_LOG(SG_GENERAL, SG_INFO, " Airways");
SGPath p_awy( globals->get_fg_root() );
p_awy.append( "Navaids/awy.dat" );
FGAirwayNetwork *awyNet = new FGAirwayNetwork;
//cerr << "Loading Airways" << endl;
awyNet->load (p_awy );
awyNet->init();
//cerr << "initializing airways" << endl;
globals->set_airwaynet( awyNet );
return true;
}
// Set the initial position based on presets (or defaults)
bool fgInitPosition() {
// cout << "fgInitPosition()" << endl;
double gs = fgGetDouble("/sim/presets/glideslope-deg")
* SG_DEGREES_TO_RADIANS ;
double od = fgGetDouble("/sim/presets/offset-distance");
double alt = fgGetDouble("/sim/presets/altitude-ft");
bool set_pos = false;
// If glideslope is specified, then calculate offset-distance or
// altitude relative to glide slope if either of those was not
// specified.
if ( fabs( gs ) > 0.01 ) {
fgSetDistOrAltFromGlideSlope();
}
// If we have an explicit, in-range lon/lat, don't change it, just use it.
// If not, check for an airport-id and use that.
// If not, default to the middle of the KSFO field.
// The default values for lon/lat are deliberately out of range
// so that the airport-id can take effect; valid lon/lat will
// override airport-id, however.
double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
if ( lon_deg >= -180.0 && lon_deg <= 180.0
&& lat_deg >= -90.0 && lat_deg <= 90.0 )
{
set_pos = true;
}
string apt = fgGetString("/sim/presets/airport-id");
string rwy_no = fgGetString("/sim/presets/runway");
bool rwy_req = fgGetBool("/sim/presets/runway-requested");
double hdg = fgGetDouble("/sim/presets/heading-deg");
string vor = fgGetString("/sim/presets/vor-id");
double vor_freq = fgGetDouble("/sim/presets/vor-freq");
string ndb = fgGetString("/sim/presets/ndb-id");
double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
string carrier = fgGetString("/sim/presets/carrier");
string parkpos = fgGetString("/sim/presets/parkpos");
string fix = fgGetString("/sim/presets/fix");
fgSetDouble( "/orientation/heading-deg", hdg );
if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
// An airport + runway is requested
if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
// set tower position (a little off the heading for single
// runway airports)
fgSetString("/sim/tower/airport-id", apt.c_str());
set_pos = true;
}
}
if ( !set_pos && !apt.empty() ) {
// An airport is requested (find runway closest to hdg)
if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
// set tower position (a little off the heading for single
// runway airports)
fgSetString("/sim/tower/airport-id", apt.c_str());
set_pos = true;
}
}
if ( !set_pos && !vor.empty() ) {
// a VOR is requested
if ( fgSetPosFromNAV( vor, vor_freq ) ) {
set_pos = true;
}
}
if ( !set_pos && !ndb.empty() ) {
// an NDB is requested
if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
set_pos = true;
}
}
if ( !set_pos && !carrier.empty() ) {
// an aircraft carrier is requested
if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
set_pos = true;
}
}
if ( !set_pos && !fix.empty() ) {
// a Fix is requested
if ( fgSetPosFromFix( fix ) ) {
set_pos = true;
}
}
if ( !set_pos ) {
// No lon/lat specified, no airport specified, default to
// middle of KSFO field.
fgSetDouble("/sim/presets/longitude-deg", -122.374843);
fgSetDouble("/sim/presets/latitude-deg", 37.619002);
}
fgSetDouble( "/position/longitude-deg",
fgGetDouble("/sim/presets/longitude-deg") );
fgSetDouble( "/position/latitude-deg",
fgGetDouble("/sim/presets/latitude-deg") );
// determine if this should be an on-ground or in-air start
if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
fgSetBool("/sim/presets/onground", false);
} else {
fgSetBool("/sim/presets/onground", true);
}
return true;
}
// General house keeping initializations
bool fgInitGeneral() {
string root;
#if defined(FX) && defined(XMESA)
char *mesa_win_state;
#endif
SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
root = globals->get_fg_root();
if ( ! root.length() ) {
// No root path set? Then bail ...
SG_LOG( SG_GENERAL, SG_ALERT,
"Cannot continue without a path to the base package "
<< "being defined." );
exit(-1);
}
SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
#if defined(FX) && defined(XMESA)
// initialize full screen flag
globals->set_fullscreen(false);
if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
// Test for the MESA_GLX_FX env variable
if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
// test if we are fullscreen mesa/glide
if ( (mesa_win_state[0] == 'f') ||
(mesa_win_state[0] == 'F') ) {
globals->set_fullscreen(true);
}
}
}
#endif
return true;
}
// Initialize the flight model subsystem. This just creates the
// object. The actual fdm initialization is delayed until we get a
// proper scenery elevation hit. This is checked for in main.cxx
void fgInitFDM() {
if ( cur_fdm_state ) {
delete cur_fdm_state;
cur_fdm_state = 0;
}
double dt = 1.0 / fgGetInt("/sim/model-hz");
string model = fgGetString("/sim/flight-model");
try {
if ( model == "larcsim" ) {
cur_fdm_state = new FGLaRCsim( dt );
} else if ( model == "jsb" ) {
cur_fdm_state = new FGJSBsim( dt );
#if ENABLE_SP_FDM
} else if ( model == "ada" ) {
cur_fdm_state = new FGADA( dt );
} else if ( model == "acms" ) {
cur_fdm_state = new FGACMS( dt );
#endif
} else if ( model == "balloon" ) {
cur_fdm_state = new FGBalloonSim( dt );
} else if ( model == "magic" ) {
cur_fdm_state = new FGMagicCarpet( dt );
} else if ( model == "ufo" ) {
cur_fdm_state = new FGUFO( dt );
} else if ( model == "external" ) {
// external is a synonym for "--fdm=null" and is
// maintained here for backwards compatibility
cur_fdm_state = new FGNullFDM( dt );
} else if ( model.find("network") == 0 ) {
string host = "localhost";
int port1 = 5501;
int port2 = 5502;
int port3 = 5503;
string net_options = model.substr(8);
string::size_type begin, end;
begin = 0;
// host
end = net_options.find( ",", begin );
if ( end != string::npos ) {
host = net_options.substr(begin, end - begin);
begin = end + 1;
}
// port1
end = net_options.find( ",", begin );
if ( end != string::npos ) {
port1 = atoi( net_options.substr(begin, end - begin).c_str() );
begin = end + 1;
}
// port2
end = net_options.find( ",", begin );
if ( end != string::npos ) {
port2 = atoi( net_options.substr(begin, end - begin).c_str() );
begin = end + 1;
}
// port3
end = net_options.find( ",", begin );
if ( end != string::npos ) {
port3 = atoi( net_options.substr(begin, end - begin).c_str() );
begin = end + 1;
}
cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
} else if ( model.find("pipe") == 0 ) {
// /* old */ string pipe_path = model.substr(5);
// /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
string pipe_path = "";
string pipe_protocol = "";
string pipe_options = model.substr(5);
string::size_type begin, end;
begin = 0;
// pipe file path
end = pipe_options.find( ",", begin );
if ( end != string::npos ) {
pipe_path = pipe_options.substr(begin, end - begin);
begin = end + 1;
}
// protocol (last option)
pipe_protocol = pipe_options.substr(begin);
cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
} else if ( model == "null" ) {
cur_fdm_state = new FGNullFDM( dt );
} else if ( model == "yasim" ) {
cur_fdm_state = new YASim( dt );
} else {
SG_LOG(SG_GENERAL, SG_ALERT,
"Unrecognized flight model '" << model
<< "', cannot init flight dynamics model.");
exit(-1);
}
} catch ( ... ) {
SG_LOG(SG_GENERAL, SG_ALERT, "FlightGear aborting\n\n");
exit(-1);
}
}
// Initialize view parameters
void fgInitView() {
// force update of model so that viewer can get some data...
globals->get_aircraft_model()->update(0);
// run update for current view so that data is current...
globals->get_viewmgr()->update(0);
}
SGTime *fgInitTime() {
// Initialize time
static const SGPropertyNode *longitude
= fgGetNode("/position/longitude-deg");
static const SGPropertyNode *latitude
= fgGetNode("/position/latitude-deg");
static const SGPropertyNode *cur_time_override
= fgGetNode("/sim/time/cur-time-override", true);
SGPath zone( globals->get_fg_root() );
zone.append( "Timezone" );
SGTime *t = new SGTime( longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
zone.str(),
cur_time_override->getLongValue() );
globals->set_warp_delta( 0 );
t->update( 0.0, 0.0,
cur_time_override->getLongValue(),
globals->get_warp() );
return t;
}
// set up a time offset (aka warp) if one is specified
void fgInitTimeOffset() {
static const SGPropertyNode *longitude
= fgGetNode("/position/longitude-deg");
static const SGPropertyNode *latitude
= fgGetNode("/position/latitude-deg");
static const SGPropertyNode *cur_time_override
= fgGetNode("/sim/time/cur-time-override", true);
// Handle potential user specified time offsets
int orig_warp = globals->get_warp();
SGTime *t = globals->get_time_params();
time_t cur_time = t->get_cur_time();
time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
time_t aircraftLocalTime =
sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
// Okay, we now have several possible scenarios
int offset = fgGetInt("/sim/startup/time-offset");
string offset_type = fgGetString("/sim/startup/time-offset-type");
int warp = 0;
if ( offset_type == "real" ) {
warp = 0;
} else if ( offset_type == "dawn" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
90.0, true );
} else if ( offset_type == "morning" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
75.0, true );
} else if ( offset_type == "noon" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
0.0, true );
} else if ( offset_type == "afternoon" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
60.0, false );
} else if ( offset_type == "dusk" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
90.0, false );
} else if ( offset_type == "evening" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
100.0, false );
} else if ( offset_type == "midnight" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
180.0, false );
} else if ( offset_type == "system-offset" ) {
warp = offset;
orig_warp = 0;
} else if ( offset_type == "gmt-offset" ) {
warp = offset - (currGMT - systemLocalTime);
orig_warp = 0;
} else if ( offset_type == "latitude-offset" ) {
warp = offset - (aircraftLocalTime - systemLocalTime);
orig_warp = 0;
} else if ( offset_type == "system" ) {
warp = offset - (systemLocalTime - currGMT) - cur_time;
} else if ( offset_type == "gmt" ) {
warp = offset - cur_time;
} else if ( offset_type == "latitude" ) {
warp = offset - (aircraftLocalTime - currGMT)- cur_time;
} else {
SG_LOG( SG_GENERAL, SG_ALERT,
"FG_TIME::Unsupported offset type " << offset_type );
exit( -1 );
}
globals->set_warp( orig_warp + warp );
t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
cur_time_override->getLongValue(),
globals->get_warp() );
SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
<< globals->get_warp() );
}
// This is the top level init routine which calls all the other
// initialization routines. If you are adding a subsystem to flight
// gear, its initialization call should located in this routine.
// Returns non-zero if a problem encountered.
bool fgInitSubsystems() {
// static const SGPropertyNode *longitude
// = fgGetNode("/sim/presets/longitude-deg");
// static const SGPropertyNode *latitude
// = fgGetNode("/sim/presets/latitude-deg");
// static const SGPropertyNode *altitude
// = fgGetNode("/sim/presets/altitude-ft");
SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
////////////////////////////////////////////////////////////////////
// Initialize the event manager subsystem.
////////////////////////////////////////////////////////////////////
globals->get_event_mgr()->init();
globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
////////////////////////////////////////////////////////////////////
// Initialize the property interpolator subsystem. Put into the INIT
// group because the "nasal" subsystem may need it at GENERAL take-down.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("interpolator", new SGInterpolator, SGSubsystemMgr::INIT);
////////////////////////////////////////////////////////////////////
// Add the FlightGear property utilities.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("properties", new FGProperties);
////////////////////////////////////////////////////////////////////
// Initialize the material property subsystem.
////////////////////////////////////////////////////////////////////
SGPath mpath( globals->get_fg_root() );
mpath.append( "materials.xml" );
string season = fgGetString("/sim/startup/season", "summer");
if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str()) ) {
SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
exit(-1);
}
////////////////////////////////////////////////////////////////////
// Initialize the scenery management subsystem.
////////////////////////////////////////////////////////////////////
if ( globals->get_tile_mgr()->init() ) {
// Load the local scenery data
double visibility_meters = fgGetDouble("/environment/visibility-m");
globals->get_tile_mgr()->update( visibility_meters );
} else {
SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
exit(-1);
}
// cause refresh of viewer scenery timestamps every 15 seconds...
globals->get_event_mgr()->addTask( "FGTileMgr::refresh_view_timestamps()",
globals->get_tile_mgr(),
&FGTileMgr::refresh_view_timestamps,
15 );
////////////////////////////////////////////////////////////////////
// Initialize the flight model subsystem.
////////////////////////////////////////////////////////////////////
fgInitFDM();
// allocates structures so must happen before any of the flight
// model or control parameters are set
fgAircraftInit(); // In the future this might not be the case.
////////////////////////////////////////////////////////////////////
// Initialize the aircraft systems and instrumentation (before the
// autopilot.)
////////////////////////////////////////////////////////////////////
globals->add_subsystem("instrumentation", new FGInstrumentMgr);
globals->add_subsystem("systems", new FGSystemMgr);
////////////////////////////////////////////////////////////////////
// Initialize the XML Autopilot subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
globals->add_subsystem( "route-manager", new FGRouteMgr );
////////////////////////////////////////////////////////////////////
// Initialize the view manager subsystem.
////////////////////////////////////////////////////////////////////
fgInitView();
////////////////////////////////////////////////////////////////////
// Create and register the logger.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("logger", new FGLogger);
////////////////////////////////////////////////////////////////////
// Create and register the XML GUI.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
////////////////////////////////////////////////////////////////////
// Initialize the local time subsystem.
////////////////////////////////////////////////////////////////////
// update the current timezone each 30 minutes
globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
&fgUpdateLocalTime, 30*60 );
fgInitTimeOffset(); // the environment subsystem needs this
////////////////////////////////////////////////////////////////////
// Initialize the weather subsystem.
////////////////////////////////////////////////////////////////////
// Initialize the weather modeling subsystem
globals->add_subsystem("environment", new FGEnvironmentMgr);
////////////////////////////////////////////////////////////////////
// Initialize the lighting subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("lighting", new FGLight);
//////////////////////////////////////////////////////////////////////
// Initialize the 2D cloud subsystem.
////////////////////////////////////////////////////////////////////
fgGetBool("/sim/rendering/bump-mapping", false);
#ifdef ENABLE_AUDIO_SUPPORT
////////////////////////////////////////////////////////////////////
// Initialize the sound subsystem.
////////////////////////////////////////////////////////////////////
init_volume = fgGetFloat("/sim/sound/volume");
fgSetFloat("/sim/sound/volume", 0.0f);
globals->set_soundmgr(new SGSoundMgr);
globals->get_soundmgr()->init();
globals->get_soundmgr()->bind();
////////////////////////////////////////////////////////////////////
// Initialize the sound-effects subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("fx", new FGFX);
globals->add_subsystem("voice", new FGVoiceMgr);
#endif
////////////////////////////////////////////////////////////////////
// Initialise the ATC Manager
////////////////////////////////////////////////////////////////////
SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
globals->set_ATC_mgr(new FGATCMgr);
globals->get_ATC_mgr()->init();
////////////////////////////////////////////////////////////////////
// Initialise the AI Manager
////////////////////////////////////////////////////////////////////
SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
globals->set_AI_mgr(new FGAIMgr);
globals->get_AI_mgr()->init();
////////////////////////////////////////////////////////////////////
// Initialise the AI Model Manager
////////////////////////////////////////////////////////////////////
SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
globals->add_subsystem("ai_model", new FGAIManager);
globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
// It's probably a good idea to initialize the top level traffic manager
// After the AI and ATC systems have been initialized properly.
// AI Traffic manager
globals->add_subsystem("Traffic Manager", new FGTrafficManager);
////////////////////////////////////////////////////////////////////
// Initialize the cockpit subsystem
////////////////////////////////////////////////////////////////////
if( fgCockpitInit( &current_aircraft )) {
// Cockpit initialized ok.
} else {
SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
exit(-1);
}
////////////////////////////////////////////////////////////////////
// Initialize I/O subsystem.
////////////////////////////////////////////////////////////////////
globals->get_io()->init();
globals->get_io()->bind();
////////////////////////////////////////////////////////////////////
// Add a new 2D panel.
////////////////////////////////////////////////////////////////////
string panel_path = fgGetString("/sim/panel/path",
"Panels/Default/default.xml");
globals->set_current_panel( fgReadPanel(panel_path) );
if (globals->get_current_panel() == 0) {
SG_LOG( SG_INPUT, SG_ALERT,
"Error reading new panel from " << panel_path );
} else {
SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
globals->get_current_panel()->init();
globals->get_current_panel()->bind();
}
////////////////////////////////////////////////////////////////////
// Initialize the controls subsystem.
////////////////////////////////////////////////////////////////////
globals->get_controls()->init();
globals->get_controls()->bind();
////////////////////////////////////////////////////////////////////
// Initialize the input subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("input", new FGInput);
////////////////////////////////////////////////////////////////////
// Initialize the replay subsystem
////////////////////////////////////////////////////////////////////
globals->add_subsystem("replay", new FGReplay);
////////////////////////////////////////////////////////////////////
// Bind and initialize subsystems.
////////////////////////////////////////////////////////////////////
globals->get_subsystem_mgr()->bind();
globals->get_subsystem_mgr()->init();
////////////////////////////////////////////////////////////////////
// Initialize multiplayer subsystem
////////////////////////////////////////////////////////////////////
globals->set_multiplayer_mgr(new FGMultiplayMgr);
globals->get_multiplayer_mgr()->init();
////////////////////////////////////////////////////////////////////////
// Initialize the Nasal interpreter.
// Do this last, so that the loaded scripts see initialized state
////////////////////////////////////////////////////////////////////////
FGNasalSys* nasal = new FGNasalSys();
globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
nasal->init();
// initialize methods that depend on other subsystems.
globals->get_subsystem_mgr()->postinit();
////////////////////////////////////////////////////////////////////////
// End of subsystem initialization.
////////////////////////////////////////////////////////////////////
SG_LOG( SG_GENERAL, SG_INFO, endl);
// Save the initial state for future
// reference.
globals->saveInitialState();
return true;
}
void fgReInitSubsystems()
{
// static const SGPropertyNode *longitude
// = fgGetNode("/sim/presets/longitude-deg");
// static const SGPropertyNode *latitude
// = fgGetNode("/sim/presets/latitude-deg");
static const SGPropertyNode *altitude
= fgGetNode("/sim/presets/altitude-ft");
static const SGPropertyNode *master_freeze
= fgGetNode("/sim/freeze/master");
SG_LOG( SG_GENERAL, SG_INFO,
"fgReInitSubsystems(): /position/altitude = "
<< altitude->getDoubleValue() );
bool freeze = master_freeze->getBoolValue();
if ( !freeze ) {
fgSetBool("/sim/freeze/master", true);
}
fgSetBool("/sim/crashed", false);
// Force reupdating the positions of the ai 3d models. They are used for
// initializing ground level for the FDM.
globals->get_subsystem("ai_model")->reinit();
// Initialize the FDM
fgInitFDM();
// allocates structures so must happen before any of the flight
// model or control parameters are set
fgAircraftInit(); // In the future this might not be the case.
// reload offsets from config defaults
globals->get_viewmgr()->reinit();
fgInitView();
globals->get_controls()->reset_all();
fgUpdateLocalTime();
// re-init to proper time of day setting
fgInitTimeOffset();
if ( !freeze ) {
fgSetBool("/sim/freeze/master", false);
}
fgSetBool("/sim/sceneryloaded",false);
}
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