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flightgear/src/Main/fg_init.cxx
Torsten Dreyer 54e6757211 Autopilot is more than just an autopilot: Introducing: "property rule" 
The autopilot has grown beyond being just an autopilot. It's
components, filters and controllers could be used to set property
values based on complex rules and driven from other property values.
That's why I chose to give it the name "property-rule".
This patch allows to define an arbitrary number of property rules under
a/sim/property-rule[n]/path
using the same syntax as autopilot configurations.
2010-08-18 18:50:07 +02:00

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// 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
#include <stdio.h>
#include <stdlib.h>
#include <string.h> // strcmp()
#if defined( unix ) || defined( __CYGWIN__ )
# include <unistd.h> // for gethostname()
#endif
#ifdef _WIN32
# include <direct.h> // for getcwd()
# define getcwd _getcwd
# include <io.h> // isatty()
# define isatty _isatty
# include "winsock2.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 <string>
#include <boost/algorithm/string/compare.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/structure/event_mgr.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/misc/sg_dir.hxx>
#include <simgear/misc/interpolator.hxx>
#include <simgear/scene/material/matlib.hxx>
#include <simgear/scene/model/particles.hxx>
#include <simgear/sound/soundmgr_openal.hxx>
#include <Aircraft/controls.hxx>
#include <Aircraft/replay.hxx>
#include <Airports/apt_loader.hxx>
#include <Airports/runways.hxx>
#include <Airports/simple.hxx>
#include <Airports/dynamics.hxx>
#include <AIModel/AIManager.hxx>
#if ENABLE_ATCDCL
# include <ATCDCL/ATCmgr.hxx>
# include "ATCDCL/commlist.hxx"
#else
# include "ATC/atis.hxx"
# include "ATC/atcutils.hxx"
#endif
#include <Autopilot/route_mgr.hxx>
#include <Autopilot/autopilotgroup.hxx>
#include <Cockpit/cockpit.hxx>
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.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 <Navaids/fix.hxx>
#include <Navaids/fixlist.hxx>
#include <Scenery/scenery.hxx>
#include <Scenery/tilemgr.hxx>
#include <Scripting/NasalSys.hxx>
#include <Sound/voice.hxx>
#include <Systems/system_mgr.hxx>
#include <Time/light.hxx>
#include <Traffic/TrafficMgr.hxx>
#include <MultiPlayer/multiplaymgr.hxx>
#include <FDM/fdm_shell.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 "renderer.hxx"
#include "viewmgr.hxx"
#include "main.hxx"
#ifdef __APPLE__
# include <CoreFoundation/CoreFoundation.h>
#endif
using std::string;
using namespace boost::algorithm;
extern const char *default_root;
// 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];
if( gethostname(_hostname, 256) >= 0 ) {
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;
while ( ! in.eof() ) {
string line;
getline( in, line, '\n' );
// 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__ ) || defined(_MSC_VER)
// Next check home directory for .fgfsrc.hostname file
if ( arg.empty() ) {
if ( homedir != NULL && hostname != NULL && strlen(hostname) > 0) {
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 and aircraft_paths, which are needed *before* do_options() is called
// in fgInitConfig
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 = "../data";
#elif defined( _WIN32 )
root = "..\\data";
#elif defined(__APPLE__)
/*
The following code looks for the base package inside the application
bundle, in the standard Contents/Resources location.
*/
CFURLRef resourcesUrl = CFBundleCopyResourcesDirectoryURL(CFBundleGetMainBundle());
// look for a 'data' subdir
CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, resourcesUrl, CFSTR("data"), true);
// now convert down to a path, and the a c-string
CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
CFRelease(resourcesUrl);
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 aircraftDir = fgScanForOption("--fg-aircraft=", argc, argv);
if (aircraftDir.empty()) {
aircraftDir = fgScanForOption("--fg-aircraft=");
}
const char* envp = ::getenv("FG_AIRCRAFT");
if (aircraftDir.empty() && envp) {
globals->append_aircraft_paths(envp);
}
if (!aircraftDir.empty()) {
globals->append_aircraft_paths(aircraftDir);
}
string aircraft;
// First parse command line options looking for --aircraft=, this
// will override anything specified in a config file
aircraft = fgScanForOption( "--aircraft=", argc, argv );
if ( aircraft.empty() ) {
// check synonym option
aircraft = fgScanForOption( "--vehicle=", argc, argv );
}
// Check in one of the user configuration files.
if ( aircraft.empty() ) {
aircraft = fgScanForOption( "--aircraft=" );
}
if ( aircraft.empty() ) {
aircraft = fgScanForOption( "--vehicle=" );
}
// 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 &) {
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 &) {
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() {
const 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__ ) || defined(_MSC_VER)
if( hostname != NULL && strlen(hostname) > 0 ) {
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__ ) || defined(_MSC_VER)
if( hostname != NULL && strlen(hostname) > 0 ) {
// 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);
}
template <class T>
bool fgFindAircraftInDir(const SGPath& dirPath, T* obj, bool (T::*pred)(const SGPath& p))
{
if (!dirPath.exists()) {
SG_LOG(SG_GENERAL, SG_WARN, "fgFindAircraftInDir: no such path:" << dirPath.str());
return false;
}
bool recurse = true;
simgear::Dir dir(dirPath);
simgear::PathList setFiles(dir.children(simgear::Dir::TYPE_FILE, "-set.xml"));
simgear::PathList::iterator p;
for (p = setFiles.begin(); p != setFiles.end(); ++p) {
// check file name ends with -set.xml
// if we found a -set.xml at this level, don't recurse any deeper
recurse = false;
bool done = (obj->*pred)(*p);
if (done) {
return true;
}
} // of -set.xml iteration
if (!recurse) {
return false;
}
simgear::PathList subdirs(dir.children(simgear::Dir::TYPE_DIR | simgear::Dir::NO_DOT_OR_DOTDOT));
for (p = subdirs.begin(); p != subdirs.end(); ++p) {
if (p->file() == "CVS") {
continue;
}
if (fgFindAircraftInDir(*p, obj, pred)) {
return true;
}
} // of subdirs iteration
return false;
}
template <class T>
void fgFindAircraft(T* obj, bool (T::*pred)(const SGPath& p))
{
const string_list& paths(globals->get_aircraft_paths());
string_list::const_iterator it = paths.begin();
for (; it != paths.end(); ++it) {
bool done = fgFindAircraftInDir(SGPath(*it), obj, pred);
if (done) {
return;
}
} // of aircraft paths iteration
// if we reach this point, search the default location (always last)
SGPath rootAircraft(globals->get_fg_root());
rootAircraft.append("Aircraft");
fgFindAircraftInDir(rootAircraft, obj, pred);
}
class FindAndCacheAircraft
{
public:
FindAndCacheAircraft(SGPropertyNode* autoSave)
{
_cache = autoSave->getNode("sim/startup/path-cache", true);
}
bool loadAircraft()
{
std::string aircraft = fgGetString( "/sim/aircraft", "");
if (aircraft.empty()) {
SG_LOG(SG_GENERAL, SG_ALERT, "no aircraft specified");
return false;
}
_searchAircraft = aircraft + "-set.xml";
if (!checkCache()) {
// prepare cache for re-scan
SGPropertyNode *n = _cache->getNode("fg-root", true);
n->setStringValue(globals->get_fg_root().c_str());
n->setAttribute(SGPropertyNode::USERARCHIVE, true);
_cache->removeChildren("aircraft");
fgFindAircraft(this, &FindAndCacheAircraft::checkAircraft);
}
if (_foundPath.str().empty()) {
SG_LOG(SG_GENERAL, SG_ALERT, "Cannot find specified aircraft: " << aircraft );
return false;
}
SG_LOG(SG_GENERAL, SG_INFO, "Loading aircraft -set file from:" << _foundPath.str());
fgSetString( "/sim/aircraft-dir", _foundPath.dir().c_str());
if (!_foundPath.exists()) {
SG_LOG(SG_GENERAL, SG_ALERT, "Unable to find -set file:" << _foundPath.str());
return false;
}
try {
readProperties(_foundPath.str(), globals->get_props());
} catch ( const sg_exception &e ) {
SG_LOG(SG_INPUT, SG_ALERT, "Error reading aircraft: " << e.getFormattedMessage());
return false;
}
return true;
}
private:
bool checkCache()
{
if (globals->get_fg_root() != _cache->getStringValue("fg-root", "")) {
return false; // cache mismatch
}
vector<SGPropertyNode_ptr> cache = _cache->getChildren("aircraft");
for (unsigned int i = 0; i < cache.size(); i++) {
const char *name = cache[i]->getStringValue("file", "");
if (!boost::equals(_searchAircraft, name, is_iequal())) {
continue;
}
SGPath xml(cache[i]->getStringValue("path", ""));
xml.append(name);
if (xml.exists()) {
_foundPath = xml;
return true;
}
return false;
} // of aircraft in cache iteration
return false;
}
bool checkAircraft(const SGPath& p)
{
// create cache node
int i = 0;
while (1) {
if (!_cache->getChild("aircraft", i++, false))
break;
}
SGPropertyNode *n, *entry = _cache->getChild("aircraft", --i, true);
std::string fileName(p.file());
n = entry->getNode("file", true);
n->setStringValue(fileName);
n->setAttribute(SGPropertyNode::USERARCHIVE, true);
n = entry->getNode("path", true);
n->setStringValue(p.dir());
n->setAttribute(SGPropertyNode::USERARCHIVE, true);
if ( boost::equals(fileName, _searchAircraft.c_str(), is_iequal()) ) {
_foundPath = p;
return true;
}
return false;
}
std::string _searchAircraft;
SGPath _foundPath;
SGPropertyNode* _cache;
};
// 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 _WIN32
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
const char *fg_home = getenv("FG_HOME");
if (fg_home)
config = fg_home;
SGPath home_export(config.str());
home_export.append("Export/dummy");
home_export.create_dir(0777);
// Set /sim/fg-home and don't allow malign code to override it until
// Nasal security is set up. Use FG_HOME if necessary.
SGPropertyNode *home = fgGetNode("/sim", true);
home->removeChild("fg-home", 0, false);
home = home->getChild("fg-home", 0, true);
home->setStringValue(config.c_str());
home->setAttribute(SGPropertyNode::WRITE, false);
config.append( "autosave.xml" );
if (config.exists()) {
SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
try {
readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
} catch (sg_exception& e) {
SG_LOG(SG_INPUT, SG_WARN, "failed to read user settings:" << e.getMessage()
<< "(from " << e.getOrigin() << ")");
}
}
}
// Scan user config files and command line for a specified aircraft.
fgInitFGAircraft(argc, argv);
FindAndCacheAircraft f(&autosave);
if (!f.loadAircraft()) {
return false;
}
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;
}
// Set current tower position lon/lat given an airport id
static bool fgSetTowerPosFromAirportID( const string& id) {
const FGAirport *a = fgFindAirportID( id);
if (a) {
SGGeod tower = a->getTowerLocation();
fgSetDouble("/sim/tower/longitude-deg", tower.getLongitudeDeg());
fgSetDouble("/sim/tower/latitude-deg", tower.getLatitudeDeg());
fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
return true;
} else {
return false;
}
}
struct FGTowerLocationListener : SGPropertyChangeListener {
void valueChanged(SGPropertyNode* node) {
const string id(node->getStringValue());
fgSetTowerPosFromAirportID(id);
}
};
void fgInitTowerLocationListener() {
fgGetNode("/sim/tower/airport-id", true)
->addChangeListener( new FGTowerLocationListener(), true );
}
static void fgApplyStartOffset(const SGGeod& aStartPos, double aHeading, double aTargetHeading = HUGE_VAL)
{
SGGeod startPos(aStartPos);
if (aTargetHeading == HUGE_VAL) {
aTargetHeading = aHeading;
}
if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON ) {
double offsetDistance = fgGetDouble("/sim/presets/offset-distance-nm");
offsetDistance *= SG_NM_TO_METER;
double offsetAzimuth = aHeading;
if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON ) {
offsetAzimuth = fgGetDouble("/sim/presets/offset-azimuth-deg");
aHeading = aTargetHeading;
}
SGGeod offset;
double az2; // dummy
SGGeodesy::direct(startPos, offsetAzimuth + 180, offsetDistance, offset, az2);
startPos = offset;
}
// presets
fgSetDouble("/sim/presets/longitude-deg", startPos.getLongitudeDeg() );
fgSetDouble("/sim/presets/latitude-deg", startPos.getLatitudeDeg() );
fgSetDouble("/sim/presets/heading-deg", aHeading );
// other code depends on the actual values being set ...
fgSetDouble("/position/longitude-deg", startPos.getLongitudeDeg() );
fgSetDouble("/position/latitude-deg", startPos.getLatitudeDeg() );
fgSetDouble("/orientation/heading-deg", aHeading );
}
// Set current_options lon/lat given an airport id and heading (degrees)
static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
if ( id.empty() )
return false;
// 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 );
const FGAirport* apt = fgFindAirportID(id);
if (!apt) return false;
FGRunway* r = apt->findBestRunwayForHeading(tgt_hdg);
fgSetString("/sim/atc/runway", r->ident().c_str());
SGGeod startPos = r->pointOnCenterline(fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
fgApplyStartOffset(startPos, r->headingDeg(), tgt_hdg);
return true;
}
// Set current_options lon/lat given an airport id and parkig position name
static bool fgSetPosFromAirportIDandParkpos( const string& id, const string& parkpos ) {
if ( id.empty() )
return false;
// can't see an easy way around this const_cast at the moment
FGAirport* apt = const_cast<FGAirport*>(fgFindAirportID(id));
if (!apt) {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport " << id );
return false;
}
FGAirportDynamics* dcs = apt->getDynamics();
if (!dcs) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Failed to find parking position " << parkpos <<
" at airport " << id );
return false;
}
int park_index = dcs->getNrOfParkings() - 1;
while (park_index >= 0 && dcs->getParkingName(park_index) != parkpos) park_index--;
if (park_index < 0) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Failed to find parking position " << parkpos <<
" at airport " << id );
return false;
}
FGParking* parking = dcs->getParking(park_index);
parking->setAvailable(false);
fgApplyStartOffset(
SGGeod::fromDeg(parking->getLongitude(), parking->getLatitude()),
parking->getHeading());
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 ) {
if ( id.empty() )
return false;
// set initial position from airport and runway number
SG_LOG( SG_GENERAL, SG_INFO,
"Attempting to set starting position for "
<< id << ":" << rwy );
const FGAirport* apt = fgFindAirportID(id);
if (!apt) {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport:" << id);
return false;
}
if (!apt->hasRunwayWithIdent(rwy)) {
SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
"Failed to find runway " << rwy <<
" at airport " << id << ". Using default runway." );
return false;
}
FGRunway* r(apt->getRunwayByIdent(rwy));
fgSetString("/sim/atc/runway", r->ident().c_str());
SGGeod startPos = r->pointOnCenterline( fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
fgApplyStartOffset(startPos, r->headingDeg());
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-nm");
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-nm", 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 );
if (!nav) {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
<< id << ":" << freq );
return false;
}
fgApplyStartOffset(nav->geod(), fgGetDouble("/sim/presets/heading-deg"));
return true;
}
// 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 )
{
FGPositioned::TypeFilter fixFilter(FGPositioned::FIX);
FGPositioned* fix = FGPositioned::findNextWithPartialId(NULL, id, &fixFilter);
if (!fix) {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate fix = " << id );
return false;
}
fgApplyStartOffset(fix->geod(), fgGetDouble("/sim/presets/heading-deg"));
return true;
}
/**
* 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" );
// Initialise the frequency search map BEFORE reading
// the airport database:
current_commlist = new FGCommList;
current_commlist->init( globals->get_fg_root() );
fgAirportDBLoad( aptdb.str(), current_commlist, p_metar.str() );
FGNavList *navlist = new FGNavList;
FGNavList *loclist = new FGNavList;
FGNavList *gslist = new FGNavList;
FGNavList *dmelist = 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_tacanlist( tacanlist );
globals->set_carrierlist( carrierlist );
globals->set_channellist( channellist );
if ( !fgNavDBInit(navlist, loclist, gslist, dmelist, tacanlist, carrierlist, channellist) ) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Problems loading one or more navigational database" );
}
SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
SGPath p_fix( globals->get_fg_root() );
p_fix.append( "Navaids/fix.dat" );
FGFixList fixlist;
fixlist.init( p_fix ); // adds fixes to the DB in positioned.cxx
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-nm");
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");
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");
SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
double hdg = hdg_preset->getDoubleValue();
// save some start parameters, so that we can later say what the
// user really requested. TODO generalize that and move it to options.cxx
static bool start_options_saved = false;
if (!start_options_saved) {
start_options_saved = true;
SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
opt->setDoubleValue("latitude-deg", lat_deg);
opt->setDoubleValue("longitude-deg", lon_deg);
opt->setDoubleValue("heading-deg", hdg);
opt->setStringValue("airport", apt.c_str());
opt->setStringValue("runway", rwy_no.c_str());
}
if (hdg > 9990.0)
hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
if ( !set_pos && !apt.empty() && !parkpos.empty() ) {
// An airport + parking position is requested
if ( fgSetPosFromAirportIDandParkpos( apt, parkpos ) ) {
// set tower position
fgSetString("/sim/tower/airport-id", apt.c_str());
set_pos = true;
}
}
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 (hdg_preset->getDoubleValue() > 9990.0)
hdg_preset->setDoubleValue(hdg);
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") );
fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
// 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;
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 );
globals->set_browser(fgGetString("/sim/startup/browser-app", "firefox %u"));
char buf[512], *cwd = getcwd(buf, 511);
buf[511] = '\0';
SGPropertyNode *curr = fgGetNode("/sim", true);
curr->removeChild("fg-current", 0, false);
curr = curr->getChild("fg-current", 0, true);
curr->setStringValue(cwd ? cwd : "");
curr->setAttribute(SGPropertyNode::WRITE, false);
fgSetBool("/sim/startup/stdout-to-terminal", isatty(1) != 0 );
fgSetBool("/sim/startup/stderr-to-terminal", isatty(2) != 0 );
return true;
}
// 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);
}
// 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" );
if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
globals->get_props()) ) {
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);
}
globals->get_scenery()->get_scene_graph()
->addChild(simgear::Particles::getCommonRoot());
simgear::GlobalParticleCallback::setSwitch(fgGetNode("/sim/rendering/particles", true));
////////////////////////////////////////////////////////////////////
// Initialize the flight model subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("flight", new FDMShell, SGSubsystemMgr::FDM);
////////////////////////////////////////////////////////////////////
// Initialize the weather subsystem.
////////////////////////////////////////////////////////////////////
// Initialize the weather modeling subsystem
globals->add_subsystem("environment", new FGEnvironmentMgr);
////////////////////////////////////////////////////////////////////
// Initialize the aircraft systems and instrumentation (before the
// autopilot.)
////////////////////////////////////////////////////////////////////
globals->add_subsystem("instrumentation", new FGInstrumentMgr, SGSubsystemMgr::FDM);
globals->add_subsystem("systems", new FGSystemMgr, SGSubsystemMgr::FDM);
////////////////////////////////////////////////////////////////////
// Initialize the XML Autopilot subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem( "xml-autopilot", FGXMLAutopilotGroup::createInstance(), SGSubsystemMgr::FDM );
globals->add_subsystem( "route-manager", new FGRouteMgr );
////////////////////////////////////////////////////////////////////
// Initialize the view manager subsystem.
////////////////////////////////////////////////////////////////////
fgInitView();
////////////////////////////////////////////////////////////////////
// Initialize the Input-Output subsystem
////////////////////////////////////////////////////////////////////
globals->add_subsystem( "io", new FGIO );
////////////////////////////////////////////////////////////////////
// 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 lighting subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("lighting", new FGLight, SGSubsystemMgr::DISPLAY);
//////////////////////////////////////////////////////////////////////
// Initialize the 2D cloud subsystem.
////////////////////////////////////////////////////////////////////
fgGetBool("/sim/rendering/bump-mapping", false);
#ifdef ENABLE_AUDIO_SUPPORT
////////////////////////////////////////////////////////////////////
// Initialize the sound-effects subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("voice", new FGVoiceMgr, SGSubsystemMgr::DISPLAY);
#endif
////////////////////////////////////////////////////////////////////
// Initialise the ATC Manager
////////////////////////////////////////////////////////////////////
#if ENABLE_ATCDCL
SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
globals->set_ATC_mgr(new FGATCMgr);
globals->get_ATC_mgr()->init();
#else
////////////////////////////////////////////////////////////////////
// Initialise the ATIS Manager
////////////////////////////////////////////////////////////////////
globals->add_subsystem("atis", new FGAtisManager, SGSubsystemMgr::POST_FDM);
#endif
////////////////////////////////////////////////////////////////////
// Initialise the AI Model Manager
////////////////////////////////////////////////////////////////////
SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
globals->add_subsystem("ai_model", new FGAIManager, SGSubsystemMgr::POST_FDM);
globals->add_subsystem("submodel_mgr", new FGSubmodelMgr, SGSubsystemMgr::POST_FDM);
// 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, SGSubsystemMgr::POST_FDM);
if( fgCockpitInit()) {
// Cockpit initialized ok.
} else {
SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
exit(-1);
}
////////////////////////////////////////////////////////////////////
// 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
globals->get_subsystem("flight")->reinit();
// reload offsets from config defaults
globals->get_viewmgr()->reinit();
fgInitView();
globals->get_controls()->reset_all();
globals->get_subsystem("time")->reinit();
if ( !freeze ) {
fgSetBool("/sim/freeze/master", false);
}
fgSetBool("/sim/sceneryloaded",false);
}
void doSimulatorReset(void) // from gui_local.cxx -- TODO merge with fgReInitSubsystems()
{
static SGPropertyNode_ptr master_freeze = fgGetNode("/sim/freeze/master", true);
bool freeze = master_freeze->getBoolValue();
if (!freeze)
master_freeze->setBoolValue(true);
fgSetBool("/sim/signals/reinit", true);
globals->get_subsystem("flight")->unbind();
globals->restoreInitialState();
// update our position based on current presets
fgInitPosition();
fgReInitSubsystems();
globals->get_tile_mgr()->update(fgGetDouble("/environment/visibility-m"));
fgSetBool("/sim/signals/reinit", false);
if (!freeze)
master_freeze->setBoolValue(false);
}
///////////////////////////////////////////////////////////////////////////////
// helper object to implement the --show-aircraft command.
// resides here so we can share the fgFindAircraftInDir template above,
// and hence ensure this command lists exectly the same aircraft as the normal
// loading path.
class ShowAircraft
{
public:
ShowAircraft()
{
_minStatus = getNumMaturity(fgGetString("/sim/aircraft-min-status", "all"));
}
void show(const SGPath& path)
{
fgFindAircraftInDir(path, this, &ShowAircraft::processAircraft);
std::sort(_aircraft.begin(), _aircraft.end(), ciLessLibC());
SG_LOG( SG_GENERAL, SG_ALERT, "" ); // To popup the console on Windows
cout << "Available aircraft:" << endl;
for ( unsigned int i = 0; i < _aircraft.size(); i++ ) {
cout << _aircraft[i] << endl;
}
}
private:
bool processAircraft(const SGPath& path)
{
SGPropertyNode root;
try {
readProperties(path.str(), &root);
} catch (sg_exception& ) {
return false;
}
int maturity = 0;
string descStr(" ");
descStr += path.file();
// trim common suffix from file names
int nPos = descStr.rfind("-set.xml");
if (nPos == (int)(descStr.size() - 8)) {
descStr.resize(nPos);
}
SGPropertyNode *node = root.getNode("sim");
if (node) {
SGPropertyNode* desc = node->getNode("description");
// if a status tag is found, read it in
if (node->hasValue("status")) {
maturity = getNumMaturity(node->getStringValue("status"));
}
if (desc) {
if (descStr.size() <= 27+3) {
descStr.append(29+3-descStr.size(), ' ');
} else {
descStr += '\n';
descStr.append( 32, ' ');
}
descStr += desc->getStringValue();
}
} // of have 'sim' node
if (maturity < _minStatus) {
return false;
}
_aircraft.push_back(descStr);
return false;
}
int getNumMaturity(const char * str)
{
// changes should also be reflected in $FG_ROOT/data/options.xml &
// $FG_ROOT/data/Translations/string-default.xml
const char* levels[] = {"alpha","beta","early-production","production"};
if (!strcmp(str, "all")) {
return 0;
}
for (size_t i=0; i<(sizeof(levels)/sizeof(levels[0]));i++)
if (strcmp(str,levels[i])==0)
return i;
return 0;
}
// recommended in Meyers, Effective STL when internationalization and embedded
// NULLs aren't an issue. Much faster than the STL or Boost lex versions.
struct ciLessLibC : public std::binary_function<string, string, bool>
{
bool operator()(const std::string &lhs, const std::string &rhs) const
{
return strcasecmp(lhs.c_str(), rhs.c_str()) < 0 ? 1 : 0;
}
};
int _minStatus;
string_list _aircraft;
};
void fgShowAircraft(const SGPath &path)
{
ShowAircraft s;
s.show(path);
#ifdef _MSC_VER
cout << "Hit a key to continue..." << endl;
cin.get();
#endif
}
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