It doesn't look like menubar items can be enabled/disabled using <property>
or <expression>, so instead we write to the File menu's items tree
/sim/menubar/default/menu[]/name[]/enabled.
We also set /sim/video/encoding-path to '' or path of video file that we are
encoding to.
Improve argument parsing for createViaTo, createViaFromTo to
handle Airway ghosts as well as strings. As part of this, allow
specification of the airway level explicitly when looking
up an airway.
SF-ID: https://sourceforge.net/p/flightgear/codetickets/2686/
geodFromHash() will now respect the _pdirty and _cdirty flags. This
ensres that FGPositioned functions are protected from invalid or
outdated coordinates, and therefore from erroneous results.
This is by Lars Toenning <dev@ltoenning.de>, Roman Ludwicki <romek21@op.pl> and
SDeAstis <salvatore.deastis@gmail.com>, in 2021 Hackathon.
Also cope with removal of SGPropertyNode::getName() - use getNameString()
instead.
Make --view-offset set /sim/view[0]/config/heading-offset-deg instead of
/sim/current-view/heading-offset-deg. Setting the latter has no effect
because of what flightgear::View::createFromProperties() does when it
initializes flightgear::View::View. This was discussed at [1].
[1] https://sourceforge.net/p/flightgear/mailman/message/37406317/
_simple_time_fdm was not being initialised, which was causing occasional hangs
on startup. So set to zero in constructor and TimeManager::init().
For simplicity, we also initialise all other basic type state in the
TimeManager class.
If _simple_time_fdm's starting value happens to be very large (e.g. 1e228),
_simple_time_fdm + fixed_dt would result in _simple_time_fdm, so we would end
up always setting simDt and realDt to zero.
This stops SGEventMgr from processing any events, which means that
initPosition()'s event to call finalizePosition() is never processed so
/sim/position-finalized is stuck on false, which results in the FDM never
setting /sim/fdm-initialized.
This will fix other uses of the APi blocking because the backend
failed to start. Enable debug logging in non-release builds so
it's obvious when the deploymenty is not configured right.
