cout << "BFI: end reinit\n";
}
+// BEGIN: kludge 2000-12-07
+// This is a kludge around a LaRCsim problem; see setAltitude()
+// for details.
+static int _altitude_countdown = 0;
+static double _requested_altitude = -9999;
+static bool _saved_freeze = false;
+static inline void _check_altitude ()
+{
+ if (_altitude_countdown > 0) {
+ _altitude_countdown--;
+ if (_altitude_countdown == 0) {
+ current_aircraft.fdm_state->set_Altitude(_requested_altitude);
+ globals->set_freeze(_saved_freeze);
+ }
+ }
+}
+
+static int _lighting_countdown = 0;
+static inline void _check_lighting ()
+{
+ if (_lighting_countdown > 0) {
+ _lighting_countdown--;
+ if (_lighting_countdown == 0)
+ fgUpdateSkyAndLightingParams();
+ }
+}
+// END: kludge
+
\f
////////////////////////////////////////////////////////////////////////
current_properties.tieString("/sim/aircraft-dir",
getAircraftDir, setAircraftDir);
// TODO: timeGMT
+ current_properties.tieString("/sim/time/gmt",
+ getDateString, setDateString);
current_properties.tieString("/sim/time/gmt-string",
getGMTString, 0);
current_properties.tieBool("/sim/hud/visibility",
current_properties.tieDouble("/position/longitude",
getLongitude, setLongitude);
current_properties.tieDouble("/position/altitude",
- // getAltitude, setAltitude);
- getAltitude, setAltitude, false);
+ getAltitude, setAltitude);
+// getAltitude, setAltitude, false);
current_properties.tieDouble("/position/altitude-agl",
getAGL, 0);
void
FGBFI::update ()
{
+ _check_altitude();
+ _check_lighting();
if (_needReinit) {
reinit();
}
/**
* Return the current Zulu time.
*/
-time_t
-FGBFI::getTimeGMT ()
+const string &
+FGBFI::getDateString ()
{
- return globals->get_time_params()->get_cur_time();
+ static string out; // FIXME: not thread-safe
+ char buf[64];
+ struct tm * t = globals->get_time_params()->getGmt();
+ sprintf(buf, "%.4d-%.2d-%.2dT%.2d:%.2d:%.2d",
+ t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
+ t->tm_hour, t->tm_min, t->tm_sec);
+ out = buf;
+ return out;
}
* Set the current Zulu time.
*/
void
-FGBFI::setTimeGMT (time_t time)
-{
- if (getTimeGMT() != time) {
- // FIXME: need to update lighting
- // and solar system
- globals->get_options()->set_time_offset(time);
- globals->get_options()->set_time_offset_type(FGOptions::FG_TIME_GMT_ABSOLUTE);
- globals->get_time_params()->update( cur_fdm_state->get_Longitude(),
- cur_fdm_state->get_Latitude(),
- globals->get_warp() );
- needReinit();
+FGBFI::setDateString (const string &date_string)
+// FGBFI::setTimeGMT (time_t time)
+{
+ SGTime * st = globals->get_time_params();
+ struct tm * current_time = st->getGmt();
+ struct tm new_time;
+
+ // Scan for basic ISO format
+ // YYYY-MM-DDTHH:MM:SS
+ int ret = sscanf(date_string.c_str(), "%d-%d-%dT%d:%d:%d",
+ &(new_time.tm_year), &(new_time.tm_mon),
+ &(new_time.tm_mday), &(new_time.tm_hour),
+ &(new_time.tm_min), &(new_time.tm_sec));
+
+ // Be pretty picky about this, so
+ // that strange things don't happen
+ // if the save file has been edited
+ // by hand.
+ if (ret != 6) {
+ FG_LOG(FG_INPUT, FG_ALERT, "Date/time string " << date_string
+ << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
+ return;
}
+
+ // OK, it looks like we got six
+ // values, one way or another.
+ new_time.tm_year -= 1900;
+ new_time.tm_mon -= 1;
+
+ // Now, tell flight gear to use
+ // the new time. This was far
+ // too difficult, by the way.
+ long int warp =
+ mktime(&new_time) - mktime(current_time) + globals->get_warp();
+ double lon = current_aircraft.fdm_state->get_Longitude();
+ double lat = current_aircraft.fdm_state->get_Latitude();
+ double alt = current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER;
+ globals->set_warp(warp);
+ st->update(lon, lat, warp);
+ fgUpdateSkyAndLightingParams();
}
FGBFI::setLatitude (double latitude)
{
current_aircraft.fdm_state->set_Latitude(latitude * DEG_TO_RAD);
+ fgUpdateSkyAndLightingParams();
+ if (_lighting_countdown <= 0)
+ _lighting_countdown = 5;
}
FGBFI::setLongitude (double longitude)
{
current_aircraft.fdm_state->set_Longitude(longitude * DEG_TO_RAD);
+ fgUpdateSkyAndLightingParams();
+ if (_lighting_countdown <= 0)
+ _lighting_countdown = 5;
}
FGBFI::setAltitude (double altitude)
{
current_aircraft.fdm_state->set_Altitude(altitude);
+
+ // 2000-12-07
+ // This is an ugly kludge around a
+ // LaRCsim problem; if the
+ // requested altitude cannot be
+ // set right away (because it's
+ // below the last-calculated ground
+ // level), pause FGFS, wait for
+ // five frames, and then try again.
+ if (_altitude_countdown <= 0 &&
+ fabs(getAltitude() - altitude) > 5.0) {
+ _altitude_countdown = 5;
+ _requested_altitude = altitude;
+ _saved_freeze = globals->get_freeze();
+ globals->set_freeze(true);
+ }
}