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flightgear/src/Main/fg_init.cxx
ThorstenB e1c1a28288 Introduce some structure in fgMainLoop. 
- Move some code to sub functions.
- Make sound manager a subsystem-manager member (and make sure it's
still processed last).
2011-11-20 16:21:15 +01:00

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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/structure/SGPerfMon.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/misc/sg_dir.hxx>
#include <simgear/misc/sgstream.hxx>
#include <simgear/misc/strutils.hxx>
#include <simgear/props/props_io.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>
#include <ATCDCL/ATCmgr.hxx>
#include <ATC/atc_mgr.hxx>
#include <Autopilot/route_mgr.hxx>
#include <Autopilot/autopilotgroup.hxx>
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.hxx>
#include <GUI/new_gui.hxx>
#include <Input/input.hxx>
#include <Instrumentation/instrument_mgr.hxx>
#include <Model/acmodel.hxx>
#include <Model/modelmgr.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 <Navaids/airways.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/ephemeris.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"
using std::string;
using namespace boost::algorithm;
// 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;
}
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";
std::string aircraftDir = fgGetString("/sim/aircraft-dir", "");
if (!aircraftDir.empty()) {
// aircraft-dir was set, skip any searching at all, if it's valid
simgear::Dir acPath(aircraftDir);
SGPath setFile = acPath.file(_searchAircraft);
if (setFile.exists()) {
SG_LOG(SG_GENERAL, SG_INFO, "found aircraft in dir: " << aircraftDir );
try {
readProperties(setFile.str(), globals->get_props());
} catch ( const sg_exception &e ) {
SG_LOG(SG_INPUT, SG_ALERT, "Error reading aircraft: " << e.getFormattedMessage());
return false;
}
return true;
} else {
SG_LOG(SG_GENERAL, SG_ALERT, "aircraft '" << _searchAircraft <<
"' not found in specified dir:" << aircraftDir);
return false;
}
}
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);
n = _cache->getNode("fg-aircraft", true);
n->setStringValue(getAircraftPaths().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:
SGPath getAircraftPaths() {
string_list pathList = globals->get_aircraft_paths();
SGPath aircraftPaths;
string_list::const_iterator it = pathList.begin();
if (it != pathList.end()) {
aircraftPaths.set(*it);
it++;
}
for (; it != pathList.end(); ++it) {
aircraftPaths.add(*it);
}
return aircraftPaths;
}
bool checkCache()
{
if (globals->get_fg_root() != _cache->getStringValue("fg-root", "")) {
return false; // cache mismatch
}
if (getAircraftPaths().str() != _cache->getStringValue("fg-aircraft", "")) {
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;
};
#ifdef _WIN32
static SGPath platformDefaultDataPath()
{
char *envp = ::getenv( "APPDATA" );
SGPath config( envp );
config.append( "flightgear.org" );
return config;
}
#elif __APPLE__
#include <CoreServices/CoreServices.h>
static SGPath platformDefaultDataPath()
{
FSRef ref;
OSErr err = FSFindFolder(kUserDomain, kApplicationSupportFolderType, false, &ref);
if (err) {
return SGPath();
}
unsigned char path[1024];
if (FSRefMakePath(&ref, path, 1024) != noErr) {
return SGPath();
}
SGPath appData;
appData.set((const char*) path);
appData.append("flightgear.org");
return appData;
}
#else
static SGPath platformDefaultDataPath()
{
SGPath config( homedir );
config.append( ".fgfs" );
return config;
}
#endif
// Read in configuration (file and command line)
bool fgInitConfig ( int argc, char **argv )
{
SGPath dataPath = platformDefaultDataPath();
const char *fg_home = getenv("FG_HOME");
if (fg_home)
dataPath = fg_home;
simgear::Dir exportDir(simgear::Dir(dataPath).file("Export"));
if (!exportDir.exists()) {
exportDir.create(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(dataPath.c_str());
home->setAttribute(SGPropertyNode::WRITE, false);
flightgear::Options::sharedInstance()->init(argc, argv, dataPath);
// 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;
SGPath autosaveFile = simgear::Dir(dataPath).file("autosave.xml");
if (autosaveFile.exists()) {
SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << autosaveFile.str());
try {
readProperties(autosaveFile.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.
flightgear::Options::sharedInstance()->initAircraft();
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.
flightgear::Options::sharedInstance()->processOptions();
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) {
string id(node->getStringValue());
if (fgGetBool("/sim/tower/auto-position",true))
{
// enforce using closest airport when auto-positioning is enabled
const char* closest_airport = fgGetString("/sim/airport/closest-airport-id", "");
if (closest_airport && (id != closest_airport))
{
id = closest_airport;
node->setStringValue(id);
}
}
fgSetTowerPosFromAirportID(id);
}
};
struct FGClosestTowerLocationListener : SGPropertyChangeListener
{
void valueChanged(SGPropertyNode* )
{
// closest airport has changed
if (fgGetBool("/sim/tower/auto-position",true))
{
// update tower position
const char* id = fgGetString("/sim/airport/closest-airport-id", "");
if (id && *id!=0)
fgSetString("/sim/tower/airport-id", id);
}
}
};
void fgInitTowerLocationListener() {
fgGetNode("/sim/tower/airport-id", true)
->addChangeListener( new FGTowerLocationListener(), true );
FGClosestTowerLocationListener* ntcl = new FGClosestTowerLocationListener();
fgGetNode("/sim/airport/closest-airport-id", true)
->addChangeListener(ntcl , true );
fgGetNode("/sim/tower/auto-position", true)
->addChangeListener(ntcl, 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)
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,
"Airport " << id << "does not appear to have parking information available");
return false;
}
int park_index = dcs->getNrOfParkings() - 1;
bool succes;
double radius = fgGetDouble("/sim/dimensions/radius-m");
if ((parkpos == string("AVAILABLE")) && (radius > 0)) {
double lat, lon, heading;
string fltType;
string acOperator;
SGPath acData;
try {
acData = fgGetString("/sim/fg-home");
acData.append("aircraft-data");
string acfile = fgGetString("/sim/aircraft") + string(".xml");
acData.append(acfile);
SGPropertyNode root;
readProperties(acData.str(), &root);
SGPropertyNode * node = root.getNode("sim");
fltType = node->getStringValue("aircraft-class", "NONE" );
acOperator = node->getStringValue("aircraft-operator", "NONE" );
} catch (const sg_exception &) {
SG_LOG(SG_GENERAL, SG_INFO,
"Could not load aircraft aircrat type and operator information from: " << acData.str() << ". Using defaults");
// cout << path.str() << endl;
}
if (fltType.empty() || fltType == "NONE") {
SG_LOG(SG_GENERAL, SG_INFO,
"Aircraft type information not found in: " << acData.str() << ". Using default value");
fltType = fgGetString("/sim/aircraft-class" );
}
if (acOperator.empty() || fltType == "NONE") {
SG_LOG(SG_GENERAL, SG_INFO,
"Aircraft operator information not found in: " << acData.str() << ". Using default value");
acOperator = fgGetString("/sim/aircraft-operator" );
}
cerr << "Running aircraft " << fltType << " of livery " << acOperator << endl;
string acType; // Currently not used by findAvailable parking, so safe to leave empty.
succes = dcs->getAvailableParking(&lat, &lon, &heading, &park_index, radius, fltType, acType, acOperator);
if (succes) {
fgGetString("/sim/presets/parkpos");
fgSetString("/sim/presets/parkpos", dcs->getParking(park_index)->getName());
} else {
SG_LOG( SG_GENERAL, SG_ALERT,
"Failed to find a suitable parking at airport " << id );
return false;
}
} else {
//cerr << "We shouldn't get here when AVAILABLE" << endl;
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, FGPositioned::Type type ) {
const nav_list_type navlist
= globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq, type );
if (navlist.size() == 0 ) {
SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
<< id << ":" << freq );
return false;
}
if( navlist.size() > 1 ) {
ostringstream buf;
buf << "Ambigous NAV-ID: '" << id << "'. Specify id and frequency. Available stations:" << endl;
for( nav_list_type::const_iterator it = navlist.begin(); it != navlist.end(); ++it ) {
// NDB stored in kHz, VOR stored in MHz * 100 :-P
double factor = (*it)->type() == FGPositioned::NDB ? 1.0 : 1/100.0;
string unit = (*it)->type() == FGPositioned::NDB ? "kHz" : "MHz";
buf << (*it)->ident() << " "
<< setprecision(5) << (double)((*it)->get_freq() * factor) << " "
<< (*it)->get_lat() << "/" << (*it)->get_lon()
<< endl;
}
SG_LOG( SG_GENERAL, SG_ALERT, buf.str() );
return false;
}
FGNavRecord *nav = navlist[0];
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" );
fgAirportDBLoad( aptdb.str(), p_metar.str() );
FGAirport::installPropertyListener();
FGPositioned::installCommands();
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");
flightgear::Airway::load();
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/airport/closest-airport-id", apt.c_str());
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/airport/closest-airport-id", apt.c_str());
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/airport/closest-airport-id", apt.c_str());
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, FGPositioned::VOR ) ) {
set_pos = true;
}
}
if ( !set_pos && !ndb.empty() ) {
// an NDB is requested
if ( fgSetPosFromNAV( ndb, ndb_freq, FGPositioned::NDB ) ) {
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;
}
// 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() {
SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
////////////////////////////////////////////////////////////////////
// Initialize the sound subsystem.
////////////////////////////////////////////////////////////////////
// Sound manager uses an own subsystem group "SOUND" which is the last
// to be updated in every loop.
// Sound manager is updated last so it can use the CPU while the GPU
// is processing the scenery (doubled the frame-rate for me) -EMH-
globals->add_subsystem("sound", new SGSoundMgr, SGSubsystemMgr::SOUND);
////////////////////////////////////////////////////////////////////
// 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);
////////////////////////////////////////////////////////////////////
// Add the performance monitoring system.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("performance-mon",
new SGPerformanceMonitor(globals->get_subsystem_mgr(),
fgGetNode("/sim/performance-monitor", true)));
////////////////////////////////////////////////////////////////////
// Initialize the material property subsystem.
////////////////////////////////////////////////////////////////////
SGPath mpath( globals->get_fg_root() );
mpath.append( fgGetString("/sim/rendering/materials-file") );
if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
globals->get_props()) ) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Error loading materials file " << mpath.str() );
exit(-1);
}
////////////////////////////////////////////////////////////////////
// Initialize the scenery management subsystem.
////////////////////////////////////////////////////////////////////
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);
globals->add_subsystem("ephemeris", new Ephemeris);
////////////////////////////////////////////////////////////////////
// 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 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 2D cloud subsystem.
////////////////////////////////////////////////////////////////////
fgGetBool("/sim/rendering/bump-mapping", false);
////////////////////////////////////////////////////////////////////
// Initialise the ATC Manager
// Note that this is old stuff, but might be necessesary for the
// current ATIS implementation. Therefore, leave it in here
// until the ATIS system is ported over to make use of the ATIS
// sub system infrastructure.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("ATC-old", new FGATCMgr, SGSubsystemMgr::INIT);
////////////////////////////////////////////////////////////////////
// Initialize the ATC subsystem
////////////////////////////////////////////////////////////////////
globals->add_subsystem("ATC", new FGATCManager, SGSubsystemMgr::POST_FDM);
////////////////////////////////////////////////////////////////////
// Initialise the ATIS Subsystem
////////////////////////////////////////////////////////////////////
//globals->add_subsystem("atis", new FGAtisManager, SGSubsystemMgr::POST_FDM);
////////////////////////////////////////////////////////////////////
// Initialize multiplayer subsystem
////////////////////////////////////////////////////////////////////
globals->add_subsystem("mp", new FGMultiplayMgr, SGSubsystemMgr::POST_FDM);
////////////////////////////////////////////////////////////////////
// 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);
////////////////////////////////////////////////////////////////////
// Add a new 2D panel.
////////////////////////////////////////////////////////////////////
string panel_path(fgGetString("/sim/panel/path"));
if (!panel_path.empty()) {
FGPanel* p = fgReadPanel(panel_path);
if (p) {
globals->set_current_panel(p);
p->init();
p->bind();
SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
} else {
SG_LOG( SG_INPUT, SG_ALERT,
"Error reading new panel from " << panel_path );
}
}
////////////////////////////////////////////////////////////////////
// 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);
#ifdef ENABLE_AUDIO_SUPPORT
////////////////////////////////////////////////////////////////////
// Initialize the sound-effects subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("voice", new FGVoiceMgr, SGSubsystemMgr::DISPLAY);
#endif
////////////////////////////////////////////////////////////////////
// Initialize the lighting subsystem.
////////////////////////////////////////////////////////////////////
globals->add_subsystem("lighting", new FGLight, SGSubsystemMgr::DISPLAY);
// ordering here is important : Nasal (via events), then models, then views
globals->add_subsystem("events", globals->get_event_mgr(), SGSubsystemMgr::DISPLAY);
FGAircraftModel* acm = new FGAircraftModel;
globals->set_aircraft_model(acm);
globals->add_subsystem("aircraft-model", acm, SGSubsystemMgr::DISPLAY);
FGModelMgr* mm = new FGModelMgr;
globals->set_model_mgr(mm);
globals->add_subsystem("model-manager", mm, SGSubsystemMgr::DISPLAY);
FGViewMgr *viewmgr = new FGViewMgr;
globals->set_viewmgr( viewmgr );
globals->add_subsystem("view-manager", viewmgr, SGSubsystemMgr::DISPLAY);
globals->add_subsystem("tile-manager", globals->get_tile_mgr(),
SGSubsystemMgr::DISPLAY);
////////////////////////////////////////////////////////////////////
// Bind and initialize subsystems.
////////////////////////////////////////////////////////////////////
globals->get_subsystem_mgr()->bind();
globals->get_subsystem_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.
////////////////////////////////////////////////////////////////////
fgSetBool("/sim/initialized", true);
SG_LOG( SG_GENERAL, SG_INFO, endl);
// Save the initial state for future
// reference.
globals->saveInitialState();
return true;
}
// Reset: this is what the 'reset' command (and hence, GUI) is attached to
void fgReInitSubsystems()
{
static const SGPropertyNode *master_freeze
= fgGetNode("/sim/freeze/master");
SG_LOG( SG_GENERAL, SG_INFO, "fgReInitSubsystems()");
// setup state to begin re-init
bool freeze = master_freeze->getBoolValue();
if ( !freeze ) {
fgSetBool("/sim/freeze/master", true);
}
fgSetBool("/sim/signals/reinit", true);
fgSetBool("/sim/crashed", false);
// do actual re-init steps
globals->get_subsystem("flight")->unbind();
// reset control state, before restoring initial state; -set or config files
// may specify values for flaps, trim tabs, magnetos, etc
globals->get_controls()->reset_all();
globals->restoreInitialState();
// update our position based on current presets
fgInitPosition();
// 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();
// reset replay buffers
globals->get_subsystem("replay")->reinit();
// reload offsets from config defaults
globals->get_viewmgr()->reinit();
globals->get_subsystem("time")->reinit();
// need to bind FDMshell again, since we manually unbound it above...
globals->get_subsystem("flight")->bind();
// setup state to end re-init
fgSetBool("/sim/signals/reinit", false);
if ( !freeze ) {
fgSetBool("/sim/freeze/master", false);
}
fgSetBool("/sim/sceneryloaded",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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