When in LEG mode, and within the intercept cone, but further away from
the leg waypoint than the leg origin, we were computing a bogus
abeam point and hence a bogus desired track.
Detect this situation, and invert the computed along-track-distance,
so the computed abeam point is actually near where we are, and not ahead
of us.
- exclude POIs and some other types from the ident match, to avoid
confusing results
- improve how the search vicinity is computed when inserting a leg,
which is the common case for a route with a destination set. Use
the midpoint of the leg ending at the insert position, as the optimal
search vicinity
- move the waypointFromString code into route.cxx, since it is mostly
independent of a FlightPlan instance
- extend the tests to cover the bug which flagged these issues
Ticket-Id: https://sourceforge.net/p/flightgear/codetickets/2372/
When starting at an airport, but not at parking or a runway, create
an empty AIFlightPlan, and ensure the AIManager code doesn’t choke on
empty FPs.
Add a unit-test which simulates the C172 tutorial reposition logic,
which is a little gnarly.
Capture the current behaviour of Increment/DecrementWaypoint in
AI flightplans, prior to making some simplifications. Especially try
to test the behaviour of the ‘increment and erase’ logic.
Avoid encoding test-data as strings, since this exceeds MSVC limits
on string literals, and tests don’t need to be relocatable anyway,
so we can just hard-code the source location into config.h
Overhaul how transitions are stored in FlightPlan XML, and how
they’re exposed to Nasal. Simplify the Nasal access by making
‘sid_trans’ and ‘star_trans’ writeable.
Extend the unit-tests a lot to cover this, both from C++ and also
from Nasal
As part of this, overhaul the ownership of FlightPlan delegate
factories, to make it safer (use ref-counting of the factories,
and allow the factory to customise delegate clean-up behaviour)
Where the plan does not contain departure / arrival WPs, fire the
corresponding delegate methods after load, to run the selection logic.
Also, add a ‘loaded’ delegate callback, to give delegates a chance to
perform validation and fix-up after all flight-plan loads.
Re-work how position-init and ATC-manager work together to do
parking assignment and fallback (when the parking is unavailable).
Improve the logic for the reposition case, and teach ATC-manager about
reposition explicitly.
When the parking is unavailable, explicitly fall back to best-runway
selection in finalizePosition.
Add many additional position-init tests, to cover all of this.
