+ After discussion with Henning:
- orig_setlistener() and orig_maketimer() were not intended to be
public -> prefix the function names with an underscore;
- clear the add-on's lists of tracked listeners and timers in
remove() (load() does that too, but it's a bit late).
+ Little rewording in Docs/README.add-ons.
Without this it will cause a nil dereference resulting in
Nasal runtime error: non-objects have no members
at D:/Program Files/FlightGear 2018.2.2/data/Nasal/canvas/map/WPT.lcontroller, line 57
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/canvas/map/WPT.lcontroller, line 79
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/canvas/MapStructure.nas, line 1088
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/geo.nas, line 384
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/canvas/MapStructure.nas, line 1051
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/canvas/MapStructure.nas, line 1059
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/canvas/map/WPT.lcontroller, line 26
called from: D:/Program Files/FlightGear 2018.2.2/data/Nasal/globals.nas, line 119
Trigger sets /controls/armament/trigger - typically for a gun, but can be used (model side) to launch anything
Pick sets /controls/armament/pickle - typically to release something (e.g. missiles), but could be bound model side to act as a trigger.
Definitely problems in aar.nas, seaport.nas; as these were hanging off a fdm-initialized.
The others have timers that are started from a listener and as such are more suited to use maketimer rather than settimer
The modules that use the loopid technique are probably fine, but these are also more suited (and easier to understand) using a maketimer
- modify to work with JSBSim aircraft when reloading the fuel based on the payload (e.g. external tanks selected)
- add property sim/gui/dialogs/payload-reload that when set will cause the payload dialog to reload (to support a second dialog that modifies the payload)
- fix so that the window retains its position (close handler) and window Z order when reloading.
- added extra bindings
- reworked the view axis (usually bound to the hat); to move at a better rate.
- trim to elevator position. When selected this will remember the current position and when the joystick is centered it will apply this as the trim. Very useful for carrier approaches; and also it helps to do something that is much easier with loaded controls when you can feel the pressure being reduced by the operations of the trim switch
