An IRC discussion about shavlir's (really nice) harrier model showed
that it had its own version of something like the Fuel & Weight
dialog, developed because the existing subsystem only supported
sliders and not "combo box" style selection for specific external
stores. That seemed sub-optimal, so I spent a few hours extending the
F&W dialog to do this and forward-ported the harrier to use it.
Check the harrier-set.xml file for an example. Basically, the weight
dialog reads a list of options for each weight listed under
/sim/weight[n] and manages a "selected" proprty telling us which one
is in use. The FDM code can then read out the weight-lb property as
before, and the model animations can use the selected option to
predicate drawing the appropriate 3D content. It seems to work pretty
well.
- always disable tutorial-stop; enable tutorial-start if tutorial available
- don't call the tutorial selector "Wizard 1/2". There is only one tutorial
selector, the next dialog is already part of the tutorial. Also, the dialogs
don't guide you through multi-dialog setup, which is what "wizards" normally
stand for.
- use tutorial name as dialog title
- set button shortcuts (default == return, esc)
- make esc go back to select dialog
- beautify sliders & some other tweaks
functions when used in $FG_ROOT/Nasal/*.nas, because it
depends on props.nas being available; no restrictions in
aircraft files, where it will proof most useful
gui.nas: replace inefficient FPS display polling loop with listener
callback
- gui.nas: use 4-space indents like the rest of the file; waste slightly less
cycles: checking for the property shouldn't be done in a loop at
all, it only serves as a temporary solution
to pop themselves down while the simulator is paused.
The problem was with the "real time" queue in the event manager,
causing the third argument of Nasal's settimer() (a flag for "sim
time") to be ignored. Inverts the default sense of the argument, as
there are lots of uses of settimer() in the current code, almost none
of which want to use real time.
Note this fix introduces a header file incompatibility in SimGear --
be sure to update.
Implement simple help system with global and aircraft specific dialogs:
The gui.nas changes have been discussed with Andy. All ac have a help dialog,
but some are empty. (This wouldn't have been necessary, as the system falls
back to the "Common Aircraft Keys" if an aircraft has no help defined, but an
empty dialog is less confusing and encourages to be filled with interesting
information. :-) I scanned all aircraft files for interesting performance
data and added some to the dialogs (stall speed, etc.) The Concorde and the
p51d have (over?)complete dialogs and can serve as examples. The format is
documented in $FG_ROOT/Nasa/gui.nas.
There is also a couple of other, minor fixes.
The following files have ugly MSDOS line endings:
$FG_ROOT/Aircraft/Hunter/hunter{-2tanks,}-set.xml
$FG_ROOT/Aircraft/A380/A380-set.xml
The Concorde-jsbsim.nas file is a useless copy of the real */nas file, which is
in Nasal/. I'was debugging the Concorde and wondered why changes to this file
had no effect ...
(Fixed Concorde in the help-ac.diff patch: don't use "interpol" keyword as
variable.)
x/y/width/height values went into the calculation for the next popup,
and things got iteratively worse due to padding issues). But the
good news is that this whole subsystem is vastly simpler when
implemented with the new interface.
Move the "tip popup" code from view.nas to a new gui.nas module, and
make it generically useful.
Wire up flap steppings for the 747 as an example of per-aircraft
flaps.
Realtime-based property slewing, to eliminate dependence of trim and
view direction rates on frame rate.
