parser. Advantages over xml.nas: (reviewed and OK'ed by Andy)
- faster (33% ... only. I had hoped for more.)
- more standards compliant
- should support UTF
- I don't have to support it. ;-)
Usage: parsexml(<path> [, <start-tag> [, <end-tag> [, <data> [, <pi>]]]]);
<path> is an absolute file path, the rest are optional callback functions.
Example:
parsexml("/tmp/foo.xml", nil, nil, func(d) { print("DATA FOUND: ", d) });
where type is one of string (default), double, float, long, int, bool
Using only the first letter works, too.
--prop:foo=123 ... sets property foo to string 123 (old behavior)
--prop:string:foo=123 ... verbose version of above
--prop:s:foo=123 ... slightly less verbose version of above
--prop:bool:foo=1 ... makes property a bool of value 'true'
I hope this isn't considered a silly gimmick. I need this often and maybe
other developers do, too. It's useful in cases where the difference really
matters. if (getprop("/foo")), for instance, is TRUE even when the property
contains string "false", as all strings are TRUE.
efficiently performing "Dijkstra algorithm".
Durk Talsma: Added the detection of "circular" wait situations in the AI
ground network. A circular wait is a situation where aircraft a waits for
b; b waits for c; and c (in turn) waits for a. The checkCircularWaits
function detects these situations.
The current "solution" to a circular wait is rather crude: Remove the
aircraft from the scene. A proper solution needs a lot more work, however,
and at least this patch stops the AI system from clogging up. in case of a
circular wait.
data for AI traffic. Default performance classes are still available as a
backup. This database will allow the calculation of aircraft-specific
take-off speed and estimate runway lenght requirements. Further added
rudimentary support for take-off and landing rotation of AIAircraft.
together -- there's only *one* instrument node now
- don't take "random" tacan, but <tacan-source> from the instrumentation
config (or /instrumentation/tacan[0] by default)
- don't take "random" display-controls from /instrumentation/tacan[0]
- default name is now "radar" (formerly "wxradar")
* it says it's a warning (while in fact it's just saying what it's doing)
* the user can't do much here (yes, flying slower, but it doesn't say that :-)
* scrolling those countless messages in the terminal puts stress on the CPU
in a time when it's apparently already struggling
- re-enable od_gauge ("owner drawn" render-to-texture instruments)
- implement radar in c++ (unlimited number of clouds/ai/mp/... objects,
better performance)
or nil if no terrain intersection could be made (tile not loaded yet).
<matdata> is a hash with information about the surface material, or nil
if no material is assigned (shouldn't really happen, but one never knows).
Example:
var ac = geo.aircraft_position();
var data = geoddata(ac.lat(), ac.lon());
debug.dump(data);
# which outputs
[ 294.5862574369132, { light_coverage : 0, bumpiness : 0, load_resistance : 1e+30,
solid : 1, names : [ "pc_taxiway", "dirt_rwytaxiway" ], friction_factor : 1,
rolling_friction : 0.02 } ]
With this information it can be determined how far an object would sink in,
if the coordinate is on a runway, etc.
foreach (var n; data[1].names)
if (string.match(n, "p[ac]_*"))
im_on_a_runway();
/sim/screneryloaded-override was "true". At least one subsystem (od_gauge)
waits for /sim/sceneryloaded to bypass CPU intensive code until the scenery
is up. This broke e.g. the RTT-radar when using /sim/screneryloaded-override
--prop:sim/sceneryloaded-override=true has the effect that fgfs
doesn't show the splash screen until the scenery is loaded, but shows
the OTW view (scenery/aircraft) at the earliest possible moment. This is
useful for developers who often need to run fgfs only to check some minor
detail, while not caring about stuttering caused by scenery loading.
simple SG_LOG instead. The user didn't call the fgcommand, so why should
s/he be bothered with that? And the actually caller of the command gets a
return value and can pop up a dialog if it thinks it's necessary.
Why /sim/fg-current at all? Because we have a file selector dialog
(still unfinished), and one might like to start it from the current
directory, to find saved flights/screenshots/whatever.
FGManipulator.*:
"This patch works around a bug in OSG's handling of modifier keys. The
symptom of the bug is that modifier keys don't appear to be released."
fg_os_osgviewer.cxx:
"This patch fixes the test for support of cursor changes in OSG 2.0."
because this allows to load from FG_HOME. To reduce security risks, always
append an ".xml" extension if there was none. Makes it hard to read /etc/secret
and to overwrite ~/.bashrc. :-)
IRC wanted this to be scritable) and add it back (as a tip popup) via
a little nasal in the keyboard handler. Also put the synthesis of
property nodes back into fgcommand(), because I got cold feet.
missing, for sanity. Note that this will pass the resulting NULL
pointer through into the underlying SGCommand handlers, some of which
may be unprepared for it. So basically this is now yet another way
you can use Nasal to exercise bugs and hose your sim; no biggie.
- if no <impact-reports> node is defined for a particular submodel, then
write the path to /ai/models/model-impact instead
- don't tie() properties that are only ever set a single time, if at all!
- better variable names
src/Scenery/tileentry.cxx: Jonathan Wagner:
Removes black dots by accounting for radius of nodes
when calculating visible nodes for traversal without removing the
optimization. Confirmed fix with a few people on IRC.
src/GUI/gui.h src/GUI/gui_funcs.cxx src/Main/fg_commands.cxx
src/Main/renderer.cxx src/Main/renderer.hxx: Tim Moore:
These patches implement a command to dump the entire OSG scene graph as
a .osg text file. While large, this allows debuggers to really see
what's happening in the scene graph.
configure.ac src/Main/Makefile.am src/Main/fg_os.cxx
src/Main/fg_os.hxx src/Main/fg_os_sdl.cxx src/Main/main.cxx
src/Main/renderer.cxx src/Main/renderer.hxx
src/Network/jpg-httpd.cxx
Added Files:
src/Main/FGManipulator.cxx src/Main/FGManipulator.hxx
src/Main/fg_os_osgviewer.cxx:
Tim Moore: Make use of osgViewer.
a report node in the submodels config:
<impact-reports>/sim/model/cow/impact</impact-reports>
When an impact happens, then the path of the submodel will be written to
this node. An attached listener function can evaluate the impact properties.
at all is that this method is meant to be deprecated. But if it doesn't
say that, and there's no generic replacement at all, then it's rather
pointless.
- simplify parameter initialization (The old code copied from Instrumentation/
but has been simplified there in the same manner a few months ago
The new method is less picky about additional nodes ane outputs less
pointless alerts. If there shall really be a check for that, then
this should be a separate function. But it's nowhere else done in fgfs.
recover instead
- it was apparently planned to run the updated loop only every 1000th
frame, but the counter isn't reset, so it runs every frame
- use SG_LOG instead of cerr
- don't add redundant slashes in SGPath::append()
throwing an instance of 'sg_io_exception'\nAbandon". And this is caused
by compiling fgfs/sg without exception support (unlikely) or linking
against a libSDL/libglut that was compiled/linked without execption
support. While we can't fix that, we can tell the users who's to blame. :-)
- handle const char * exceptions
"minor update for the rotor FDM. It results in a more realistic
calculation of the phase shift of rotor and therefor in a little bit
more realistic flight behavior.
(Additionally you can modify the initial position of the rotor and some
(not finished) modifications for the jet ranger rotor)."
show "secret" values, that is: values of nodes with children. These
can be used like all normal (leaf) properties, but their values were
until now only shown in writeProperties() dumps. Also show the
number of attached listeners. Example: foo = 'bar' (string, AU, L3).
dialog.cxx: add warning message for broken <format>s; cosmetics
- props is easy to mix up with the --prop option (for setting properties)
- the name is unspecific and inconsistent: other option names describe
the protocol -- the way to get the properties. How is, for example,
--httpd less about prop(ertie)s?
- two identical options easily confuse people, as can be seen in The
FlightGear Manual, where --telnet and --props were described differently
/sim/view[*] that it finds. It's not only unnecessary that view definitions
have subsequent indices, but aircraft are now *requested* to use indices
100++. /sim/view[0] .. /sim/view[99] are reserved for the system. (Not
that we'd ever need that many, This is just a convention, it's nowhere
hard-coded.)
- replace the string operations for property paths by method calls & other
improvements
because nasal's f_interpolate() may be called in Nasal at times when the
GENERAL subsystem group is being deconstructed; access it by addressing
the group directly, as using globals->get_subsystem() does then not
work any more then; yeah, it's all for a rare border case ... :-)
NasalSys.cxx more robust instead. The reason for the crash was that during
fgfs shutdown destroyed subsystems (GENERAL group) still need Nasal access
(for AI Model destruction listeners), but at that point globals->get_subsystem()
can't even deliver the "nasal" subsystem (INIT group). One way to solve that
problem would have been to replace globals->get_subsystem("nasal") by
globals->get_subsystem_mgr()->get_group(SGSubsystemMgr::INIT)->get_subsystem("nasal"),
but Andy decided to store a pointer to the active "nasal" subsysten in
NasalSys.cxx instead, as the "nasal" subsystem needs to be accessed in
every single Nasal extension function, and multiple "nasal" subsystems are
out of the question, anyway.
we need to explicitly destroy that here, too, so that it has guaranteed
access to the Nasal subsystem. Otherwise we get a segfault on exit. When
the next subsystem needs this special treatement (radar?), we should
introduce a new subsystem group (in addition to INIT and GENERAL)
"FATAL: PUI: No Live Interface! Forgot to call puInit ?"
We shouldn't use the splash progress message before guiInit().
Leave the "idle_state" step for now, to keep the similarity
with fg/plib as big as possible. This can be dropped later.
Patch to enable atc chatter (and any other arbitrary "message" audio file)
to be played at any specified volume. (Previously these messages were always
played at a hardcoded volume of 1.0)
- loop up file name in the cache at startup. If it's found, check if the
file exists and use it, otherwise scan $FG_ROOT/Aircraft/ as usual,
and create a new cache while doing that. Rebuild cache on FG_ROOT change.
getAttribute("archive") returns 1 if the attribute is set, and 0 otherwise.
Allow to query and to set all properties by not specifying an attribute
string: getAttribute() returns all attributes bit coded in an integer,
and setAttribute(attr) sets all attributes. No assumptions may be made
about the meaning of the bits -- they can be changed in future fgfs releases.
The only valid use is to compare or set attribute numbers obtained in the
same fgfs run. This is meant for allowing full copies of property branches.
Also add getAttribute query strings "children" for the number of children,
and "alias".
- fix breakage due to former commit (AIManager.cxx, r1.72)
- make AI properties available in AIBase
- add <valid> property for animations/nasal scripts
- support more MP and AI targets
- add target select and altitude display
their XML wrapper/animation file. They can access their /ai/models node
via cmdarg() function. Example:
<nasal>
<load>
print("Hi, I'm the Nimitz. My data are under ",
cmdarg().getPath());
</load>
<unload>
...
</unload>
</nasal>
Note, however, that the <unload> block is only called on exit at the moment,
not when the tile is unloaded.
"""
"Flight plans" which can start at a given time (gmt)
WAITUNTIL tokens which pause the flight plans until a given time (gmt)
Submodels can now be attached to any AI objects (except submodels - it can
be done, but in my experimental code it's too expensive in frame rate atm)
"No-roll" attribute added to Ballistic objects - useful for wakes and the
like
"Random" attribute added to Ballistic objects (adds =- 5% to the Cd) -
useful for smoke, exhausts
If the <trigger> tag is not specified the Ballistic object/s will be
released at start-up (cannot be stopped)
Submodels are not released from AI Objects if the AI Object is more than 15
miles away.
"""
mf: minor code and formatting fixes; submodels.?xx were FUBAR and are thus
astyle formatted;
NOTE that <name> tags END, EOF, WAIT, WAITUNTIL are *depreciated*.
Don't get too used to them. This will have to be moved from the "name"
to regular engries.
Nasal now supports calls to "subcontexts" and errors can be thrown
across them, leading to complete stack traces when call() is used,
instead of the truncated ones we now see.
Vectors can now be concatenated using the ~ operator that used to work
only for strings.
Better runtime error messages in general due to a fancier
naRuntimeError() implementation
A big data size shrink on 64 bit systems; the size of a naRef dropped
by a factor of two.
"Braceless code blocks" have been added to the parser, so you can
write expressions like "if(a) b();" just like in C. Note that there's
still a parser bug in there that fails when you nest a braced block
within a braceless one.
Character constants that appear in Nasal source code can now be
literal multibyte UTF8 characters (this was always supported for
string literals, but character constants were forced to be a single
byte).
New modules: "bits", "thread", "utf8" and (gulp...) "io". The bits
library might be useful to FlightGear, the utf8 one probably not as
Plib does not support wide character text rendering. The thread
library will work fine for spawning threads to do Nasal stuff, but
obviously contact with the rest of FlightGear must be
hand-synchronized as FlightGear isn't threadsafe. The io library is
no doubt the most useful, as it exposes all the basic stdio.h
facilities; it's also frighteningly dangerous when combined with
networked code...
have no children (in which case they default to 1px thickness & stretch).
This allows to just write <hrule/> instead of <hrule><dummy/></hrule>.
One can still use <hrule><pref-height>3</pref-height></hrule>, of course.
layout.cxx: drop silly do??Box calls for hrule/vrule (yes, I wrote that :-)
discard the display part. The curly braces wouldn't be spoken anyway,
and the | would be spoken as "vertical bar", which is completely
useless (which is why it had been disabled in the past already).
"Implement 'flightplans' for AIShips. This patch also introduces the concept
of a 'WAIT' token for AIShips: when the flightplan reaches a 'WAIT', the
AIShip stops and pauses for the specified time (secs)."
"""
Fix Y2K bug triggering string overflow
sim_control_.date_string is a char[7], so it can contain "yymmdd" and
the terminating '\0'. However, nowtime->tm_year is 107 for the year 2007,
so you'll end up with a 7 digit number and the string written to
sim_control_.date_string is longer than sim_control_.date_string is.
Ouch!
"""
mf: ... and sim_control_.date_string isn't even used.
done for performance reasons, but print() should be able to output any
valid string, and when SG_LOG uses strings and streams already, then we
can use that here, too. (Not discussed with Andy yet.)
before the property tree is stored away for reinit, so the signal would
be emitted again on reset.
- fix inconsistent style that sneaked in with a previous patch
in $FG_ROOT/Nasal/* were loaded and executed, and thus all Nasal library
functions are available. This was in the past only done with settimer(..., 0),
constructions, but suchlike triggered timer functions are executed
*after* aircraft specific Nasal files were loaded, so they can't be
used for internal library initialization, where e.g. props.Node() is
already needed.
"""
- ground properties (e.g. feel bumpiness and the reduced friction of
grass or go swimming with the beaver)
- initial load for yasim gears (to get rid of the jitter the beaver has
on ground)
- glider/winch/aerotow (do winch start with YASim glider or do aerotow
over the net) I will place a how-to on the wiki soon, here very short:
use the sgs233y (or the bocian if you have AJ (up ot now) non-GPL
bocian)
winch start: Ctrl-w for placing the winch, hold w to winch, press
Shift-w to release the tow
aerotow: Place the glider within 60m to a MP-aircraft, press
Ctrl-t to tow to this aircraft. If the MP-aircraft is the
J3 and the patch is installed on both sides, the J3 feels the
forces, too. The J3-pilot has to taxi very slow up to the
moment, the glider starts moving. Increase the throttle gently.
Don't lift the J3 early, wait for the glider being lifted,
lift gently.
"""
(including all subdirs and with max depth!), but only the outmost level.
There are no *-set.xml files in deeper nested dirs, and with an ever growing
number of aircraft the search just lasts too long.
Here is a patch for two bugs in the AI/multiplayer part:
1. Cannot find model file *.ac error message (was only a false message,
anything worked correctly, the model was loaded from the correct path
afterwards).
2. Often many multiplayer aircrafts are missing in the property-tree.
(but I need them for aerotowing). There is still another bug: The
property in some circumstances seems not to be cleaned up after logout
of a multiplayer. I have added a workaround for this, but I don't now,
if it 100% works (should have no side effects, just aerotow would not
work sometimes). For testing I need more traffic on the mp-server.
src/Input/input.cxx src/Main/renderer.cxx
src/Main/renderer.hxx src/Scenery/scenery.cxx
src/Scenery/scenery.hxx: Move scenery picking into the renderer.
There is most of the required data defined. Also we can better use
the pick visitor that will be needed with th upcommung panel code.
src/FDM/groundcache.cxx src/FDM/groundcache.hxx: Store the material
that was used to get the croase agl level and return that material
in case we need to make use of that croase value.
options.cxx: Olaf Flebbe: Fix some problems with --help --verbose
caused by the usage of snprintf. Elimate snprintf usage in favour
plain std::string manipulations.
data/AI/Aircraft/*/*.xml and read traffic information from these files.
Current code still mimicks old behavior by reading data/Traffic/fgtraffic.xml
The latter functionality will be disabled once we have some traffic containing
files in data/AI/Aircraft.
earth model instead of WGS84. WGS84 precision is overkill for what the
traffic manager requires, and also keeps locking up while computing
course and distance for anti podal points in New Zealand vs. south west
france.
utils/Modeller/Makefile.am src/FDM/YASim/Makefile.am:
Remove -lssg from the linker lines.
Do no longer build threedconvert. A very similar functionality
is available with osgvconv. But leave threedconvert in place
if somebody will need that ...
I found a small conspicuity in YASim. The destructor of the fdm was
never called, therefore a modification of the heli fdm (not in cvs) did
not work after reset (I tie some properties and untie them in the
destructor, but the destructor was not called and the tieing failed
after reset. I don't know if any other parts of YASim need their
destructors, at least it wastes memory.
Another small fix I have made to the turbulence.cpp. The code needed,
that (a-floor(a)) is >=0 and <1. This is analytical correct, but
numerical only for "small" values. In normal fg-operation a in this
function is always small, but with unrealistic parameters in the
aircraft config file it is not and then fg crashes (instead a crash of
the aircraft or cataputling it far away).
"bind the visibility-property of the SGSky object to a property
named /envirionment/effective-visibility-m. This property is needed to decide
if the aircraft is within clouds or not. I use this property also for the
structural icing code."
- Ground network slow-down finally works as expected
(although occasionally causing a traffic jam)
- Hold position instruction now really sets speed to zero, in addition
it actually works now for crossing and two-way traffic
- Attempt to limit execution time of ground network trace algorithm
to make performance acceptable at high-density networks
- Removed remaining terminal messages
- Various minor tweaks and clean-ups
Time/tmp.cxx Main/viewer.hxx Main/viewer.cxx Main/renderer.cxx
Get rid of an other OSGFIXME. The view matrix had some plib specials
included. The viewer is now updated for that.
a second tacan may not be likely)
- remove some dead code
- simplify <name>/<number> handling
- let a listener watch over input props and search for new channel/frequency
- allow to set channel number as one number (rather than as single digits),
as some aircraft may prefer this (the ch53 does so); this is to be set
in /instrumentation/tacan[n]/frequencies/selected-channel[0]
it was never added, which is perfectly normal when the aircraft started
out of range. (Analog to the DME sound, which doesn't have that warning
either.)
value on a property. This becomes a NaN when converted to a numeric
value, which then percolated into the C++ world where it ultimately
caused a crash in YASim's turbulence code. While converting nil to
NaN isn't *strictly* wrong, it's dangerous for this reason. Toss a
Nasal exception instead. Hopefully this won't break too much
preexisting code.
- Moved AIModels/Traffic Manager related AI functions to a new file
- Rewrote the traffic manager so that the containers use pointers to
objects instead of the objects themselves, which will allow for a
more flexible memory management.
- Rewrote parts of the airport groundnetwork code, also because the
stl containers now contain object pointers instead of the objects
themselves.
- Fixed an uninitialized iterator in the AI distance tracking code
- Fixed flawed logic in some of the traffic controller's while loops
- Added a tower controller, which paces take-off behavior of AITraffic
in a more realistic way.
- Various other minor fixes and fine tuning.
More realistic calculation of vortices at the blades and therefore
real airfoil parameters can be used now (not to be mixed up with the
vortex ring state which is still not simulated), ground effect is now
continuous e. g. at buildings, calculating of the rotor in more than 4
directions, better documentation of the airfoil parameters.
- Well I finally licked it, the clipping works great now, in 16 and 32
bpp mode, on 2d and 3d panels.
- I tried glScissors, didnt work because clipping was done in screen
co-ordinates.
- Stencil buffer methods worked great for 2d panel, but messed up 3d
panels,(depth buffer problems I think), and only worked in 32 bpp mode.
- I then tried clip planes , and so far it appears to work with no
problem, and no framerate drop like I had with the stencil buffer
method...
I'm attaching the panel.cxx file for testing...
values that were angles between the aircraft's orientation and the
global velocity vector, not the airflow velocity. So the HUD velocity
vector was wrong when the wind was non-zero. Fix that.
maintain a resonable distance from each other while taxiing on the same
route. The current code does not yet take crossing routes or aircraft
taxiing into opposite directions into account.
If there is a windows problem, look very carefully at the line termination
with a serial port monitor. It should be \r\n (CR-LF), not \n, not \r\r\n
or any other possible variant.
format. I have a Garmin 295 to test with, but so far I haven't been able
to make this work (code should compile cleanly though.) I don't know if
I've made a mistake in the protocol or if my 295 just doesn't support this.
More work on this to come.
- NEVER EVER use leading underscores for auto variables
- don't store values in auto variables for the next function call (not
even when they start with underscore :-) This fixed the TACAN
channel lookup, which was supposed to be done on channel changes only,
but was always done)
- only do frequency search if frequency has changed (this was apparently
planned, but not finished; leftover from adf.cxx?)
- don't use double as bool switch
- some minor cleanup
algorithm caused a program crash. Because there is always one waypoint more
than there are routes, the trace function should only pop_back the final route
entry at search depths of one or higher. I also added a lot of of additional
safeguarding code, due to the fact that the new trace algorithm was
apparently not as stable as I'd hoped it would be. ...
in the case of fg_init.cxx we'll only see that if the log-level is set
in preferences.xml, because command line options weren't even processed
at that time. :-/
generates a data file of aerodynamic lift and drag (and L/D) against
AoA at a specified speed and altitude through a full circle. Wrote it
to track down the YF-23 superthrust issue, but it wasn't any help.
All the forces look fine.
state. The only really obvious problem was a giant negative engine
RPM, which happened because of a lack of clamping in the engine code
combined with the YF-23's ability to actually reach speeds near the
engines _vMax value. It's not clear to me that this will fix the
superthrust issue at high AoA's, but it's an obvious bug nonetheless.
+ The wing compilation step was accidentally omitting regions that lie
between the tips and the first/last control object. That's a real
problem for wings that contain no controls, and a significant issue
for those that contain only a few. I'm stunned that this went
undetected for so long.
+ The Surface::flapLift() function was oddly returning 1.0 Newtons as
a minimum, instead of zero.
(this was the reason why the first two text lines on the splash screen
looked more blurry than the others). BTW: I played with other values
than -0.5, but this turned out to be the best already. It makes textures
sharper than 0, but not too sharp (and thus flickering).
track and is a PITA for support staff. It's this message:
Error reading properties:
Failed to open file
at /home/newbie/.fgfs/autosave.xml
(reported by SimGear XML Parser)
than tick marks, and looser (zoomed) than the other 40%. Rationale:
- this was only used in *one* tape of *one* HUD ("custom")
- it's not in the MIL-STD!
- doesn't seem very useful
- relies on integer scale values, while we now have float values in the new HUD
This feature would have had to be rewritten anyway. If someone needs it and
can come forward with a (MIL-)STD description, then it can be added to the
existing tape generator again (using a value->screen-position mapper function).
Otherwise it's simply declared dead.
(Yay, one TODO and a few FIXMEs less. ;-)
encapsulation, but a real namespace would probably be better)
- extend alignment to optionally adjust x/y, and to return absolute
l/r/b/t coordinates (as opposed to plib's relative ones!)
- implement tape gaps as per Curt's order :-)
- shuffling stuff around for fun
- add generic text adjustment and
- use it in the ladder: climb -> vert bar on the outside, numbers below line
dive -> vert bar on the inside, numbers above line
work for ground based distance separation of AIAircraft.
Traffic manager initialization related changes:
- Schedules initialize "on the fly", instead of during initialization
- Invalid routes are no longer deleted, but marked as BOGUS and ignored
- Changed loading order from a distance based prioritization to a point-
score based prioritization, resulting in a much faster establisment of
AIAircraft near the user's plane.
Preparatory work for ground-based separation of Aircraft.
- The groundnetwork findShrortestRoute function not only returns a list
of waypoints, but also a list of taxi "segments" (a.k.a. taxiways).
- The taxiway list is stored in the Flightplan, and updated everytime
a new taxi leg is created.
implications.
Fix the ladder so it "moves" around in the hud correctly based on alpha/beta
offset projected onto the horizon line so the horizon is always the horizon.
using Curt's new speed adjustment code. 2) Separated the function
FlightPlanCreateCruise() into a new source file in preparation of a more
elaborate airway following scheme.
calculations. We run the FDM at 120hz and compute how many loops can fit into each FG loop.
Floating point rounding could lead to a situation where we could end up running
1, 3, 1, 3, 1, 3... loops of the FDM when in fact we want to run 2, 2, 2, 2, 2...
If we artificially inflate ml above by a tiny amount to get the
closest integer, then subtract the integer from the original
slightly smaller value, we can get a negative remainder.
Logically this should never happen, and we definitely don't want
to carry a negative remainder over to the next iteration, so
never let the remainder go below zero.
such a box:
_____/\_____
| Booo |
|__________|
likewise with options bottom, left, right. The size can be set via option
<marker-offset> (analogous to <tape> offsets), which describes the distance
from the base to the peak. Default: 8 px
a 8 pt font (set 8 pt in preferences.xml, too)
- fix vertical alignment of digits in label and ladder (temporary
solution -- the whole font handling needs to be reviewd and fixed)
- simplify nadir and zenith (they always want to be horizontally centered
on the ladder lines, no?)
- simplify and abstract label box drawing (no need for stippled side lines)
- align text (more) correctly in label boxes
- move variable declaration near their first use (c++ style rather than c)
- rename (zenith|nadir|hat) to enable-(zenith|nadir|hat) and make them bool
(for consistency reasons)
Generally you want point sprites for performance reasons when enhanced runway
lighting (and smooth points) are activated. Most hardware doesn't
accelerate the rendering of standard smooth points, so without point sprites
you will kill your night time performance if you turn on enhanced runway
lighting.
Note that enhanced runway lighting "breaks" our clever scheme to make the
runway lighting brightness vary with the relative view angle. This means
with enhanced lighting on, all lights are equally bright no matter what
direction you view them from. So perpendicular runways are just as bright
as runways you are directly lined up with (when enhanced runway lighthing
is activated.)
You can revert to the original lighting scheme by turning off enhance runway
lights, turning off distance-attenuation, and turning off point-sprites in
the rendering options menu.
maintainable. The rules are simple (extension functions are called
*with* the lock, which must be dropped before calling naCall(), which
grabs it) but the tracking of when the lock was held was getting a
little confused. Keep a "nasal call depth" count in the subsystem to
figure out whether we are making a sub-call and thus hold the lock.
- Fix a warning about class member initialization order.
- Clear up a problem with the default autopilot behavior on the back side
of an ILS in preparation for adding a real "back course" approach mode.
and "latitude-offset" should not use a precalculated value of warp.
2) Since the values of cur_time and crrGMT are identical in the current
version of the SGTime class, the calculations of the "system", "gmt", and
"latitude" are re-evaluated and updated where necessary.
I attach 2 new files and a diff file for the associated changes to add a
“fluxgate compass†to the instrument inventory. Whist this outputs
essentially the same data as /orientation/heading-magnetic-deg, it has to
be powered, and can be made to fail. I also followed Roy’s suggestion to
generate the error properties for this instrument here rather than in
xmlauto.xml.
When this instrument is included in cvs, I intend to use it in the Hunter,
A4F Seahawk and KC135. After a bit more research, it might be appropriate
for the Spitfire and Hurricane as well. AJ would also like to use it for his
Lightning model.
autopilot with the servos off. In otherwords, the computer goes through the
motions of computing the desired behavior (pitch or roll) but doesn't actually
drive the outputs. This is potentially useful when implimenting a flight
director.
and tgt_altitude -> tgt_altitude_ft. Also fix a comment in AIBase.hxx
indicating that the altitude is in meters, even though the usage throughout the
code was most definitely feet.
- In AIMultiplayer.cxx, update the altitude_ft variable so that the altitude
is reported correctly in the entity's property subtree.
- In AIMultiplayer.cxx, compute a velocity value in kts to fill in the speed
entry in the entity's property subtree. Note, this is not an earth centered
reference speed, not an indicated speed and not a speed relative to the local
airmass (that would be much harder to do.)
the buggy ~fnt(), causing an abort() ... ;-)
(Only loaded texture fonts (*.txf) have a new'ed puFont. The built-in
pixmap fonts don't, and may, thus, not be deleted.)
each frame. However, often these values didn't change leading to bogus data
getting introduced into the computational pipeline.
This patch switches to a much more sane method for ground track computation.
Thanks to tied functions, this is only executed when the node is read. This
will be done by the old & new HUD code, the latter of which won't have a
special lon/lat mode at all. Instead it will be regular labels that point
to these properties for displaying lon/lat.
I would have liked to avoid the duplication of code (lon and lat being
basically the same thing), and to avoid using static buffers and all, but
... if anyone wants to make it prettier, go ahead.
The format is controlled by /sim/lon-lat-format (will be changed if I
find a better place).
AI aircraft are out of range or the piloted aircraft has no radar system.
These computation include range, bearing, and angular offset relative to the
piloted aircraft. This gives some external script the control the behavior
of the AI aircraft relative to the piloted aircraft without requiring a radar
system, and without requiring the AI aircraft to be within radar range.
flightplan. Such aircraft are given some initial conditions that they
fly with. They proceed on in "freeflight" mode indefinitely. For example,
there is a refueling demo where the tanker starts at 3000', 280 kts, and
in a 15 degree bank, and then continues to orbit indefinitely.
For these aircraft with no flightplan, I have added several control nodes in
controls/flight that allow a script or menu or external application to set
heading, altitude, bank angle, and speed. This permits some level of interactive
or scripted control over AI aircraft.
are taken down by the C++ runtime environment. This will later be done
with runlevels. Why would we want to run nasal code in subsystem
destructors? We don't really. But some data structures may use nasal,
which are normally created/destroyed during runtime. And these will
also be destroyed at fgfs exit. In the past things like these didn't
happen, because someone had disabled all subsystem destructors ...
src/AIModel/AIAircraft.cxx src/ATC/AILocalTraffic.cxx
src/FDM/flight.cxx src/FDM/flight.hxx src/FDM/groundcache.cxx
src/FDM/groundcache.hxx src/Main/fg_init.cxx src/Main/main.cxx
src/Scenery/hitlist.cxx src/Scenery/hitlist.hxx
src/Scenery/scenery.cxx src/Scenery/scenery.hxx
Make use of the attached SGMaterial reference userdata on scenegraph
leafs. Make the SGMaterial pointer available to the ground query
routines.
SGPropertyNode to guarded ones. This is also done for JSBSim/JSBSim.hxx,
for which JSB had given explicit permission a while ago. I postponed that
back then, but now is the time.
color group /sim/hud/palette/color[*]/ to the active group /sim/hud/color/
if they really exist. (Parameters like <antialiased> can be set in the
active group and be left alone, or set by each <palette> color group.)
into the <color> group, but that's because on HUD color changes a whole
"color" set from /sim/hud/palette/color[*] is copied to /sim/hud/color/, and
antialiasing needs to be considered with that. (I'm not entirely happy
with the property names yet.)
there's a bug that I had copied: update() checks each list node: if it
has no children, then a listener is attached. Later, when freeing the
children list, it assumed again that each node without children would
have a listener attached. This caused a crash when a node had children
before, but lost them in the meantime. Now we tried to remove a listener
where there never was one.
with an invalid path, as in getprop("/sim/model/737") or x.getNode("f:1").
Forward sg's error message to the Nasal runtime error function instead, so
you get something like:
Nasal runtime error: name must begin with alpha or '_'
at /home/m/fgfs/Base.local/Nasal/props.nas, line 30
Unfortunately, the location points to the line where the ghost wrapper
sits, rather than the offending script line.
*many* years, so the property browser always leaked memory. I activated
this line in property_list.cxx and ... got a crash right there. So this
was the reason for it being commented out? Doing the same for now, until
I know the exact reason and can really fix it.
"Bug Fix - amend the code so that JSBSIm can have more than one tanker in
the environment at the same time. A nasal script has to be added to each
aar-capable JSBSim model to complete this fix."
- backport submissions for plib 1.8.5:
* set slider size correctly
* remove slider/arrow when all entries fit into the view
* don't allow to scroll off the list
Unfortunately, there's no simple way to distinguish them. plib has no
user defined widget classes, and getTypeString() -- which could be used
for that -- isn't virtual. Sigh. I'll discuss the problem on the plib list.
For now I can only offer an ugly workaround. (Don't look closely!)
from plib's file-picker, where it made some sense to keep the current path as
string, and to chop off elements when leaving a dir, and adding them when
entering. But it doesn't make the least sense in SGPropertyNode space, where
we already have everything to move in a tree.
- add R & W flags for TRACE_READ and TRACE_WRITE. Remember: lower case letters:
disabled (rw ... reading/writing), upper case letters: enabled (RWAUT)
- remove some verbosity & further cleanup ... to make further work easier :-)
"Add Air to Air TACAN and User-User refuelling over the Multiplayer Network.
With this change, your TACAN instrument can be tuned to the channel of a
Multiplayer ac. It also activates fuel flow between User and User aircraft
when they are less than 50 ft apart. To participate in multiplayer as a
tanker, all you require to do is to use the callsign MOBIL* (where * is some
number) on the net. Only MOBIL1, MOBIL2 and MOBIL3 have been assigned TACAN
channels, but any MOBIL callsign will be able to give fuel."
- PropertyObject: remove additional "values" member again
- don't create entry lists for <list>, <select>, and <combo> at dialog
creation and delete them on dialog close, but let a separate class
fgValueList handle this. The three widgets are now subclassed and the
derived widget lets fgValueList manage the lists
- make <select> consistent with <list>. This breaks backwards
compatibility, but not a single dialog in fgfs uses it and did so
since ... forever. (Shoot me!)
Rationale: now that dialogs are a bit more dynamic than they used to be
(thanks to embedded Nasal), we have to delete and recreate entry lists
during dialog use. Deleting only at dialog closing doesn't cut it anymore.
Especially list widgets that are updated several times per second would
use up a lot of memory otherwise. The route-manager doesn't update that
often, but it did already leak. One TODO less. :-)
"Preparations for an upgrade to Air-to-Air Refuelling to allow more than one
tanker in the environment at a time. This will only work with YASim models.
JSBSim models are unaffected by this change."
The ufo sets this to a very low value, "serious" aircraft (which don't want this
unrealistic automatism at all) set it to a very high value, and those that don't
care ... don't need to care.
signals, this is meant for attaching listeners. The ufo will use that to
hide/reveal the status line in screenshots. The following signal properties
are now available:
/sim/signals/exit ... set to 1 right before quitting
/sim/signals/reinit ... set to 1 on re-init (Shift-Esc)
/sim/signals/screenshot ... set to 1 before and to 0 after screenshot
/sim/signals/click ... set to 1 after mouse clicks at terrain, signalling
that the geo coords in /sim/input/click/ were updated
I've got some updates for the soaring scenario that will make for a more
realistic (and fun) experience. They are:
1) A cap cloud, which will sit atop each thermal
2) A thermal scenario with wide coverage around KSFO, and using cap clouds
3) A one-line change to AIThermal.cxx to position cap cloud properly
4) Schweizer 2-33 set file change to match cloud coverage with thermal
heights.
files:
1) data/Models/Geometry/thermalcap.ac
2) data/Models/Geometry/thermalcap.xml
3) data/Models/Geometry/thermal_cap.rgb
4) data/AI/thermal_demo.xml
5) data/Aircraft/sgs233/sgs233-set.xml
6) source/src/AIModel/AIThermal.cxx
*** or, if you prefer diffs ***
7) aimodel.diff
only used by the <list> widget. It allows to "dialog-update" the list,
which rescans the <value> children and redraws the list widget with new
contents. The old contents are only freed at dialog close, which should
eventually get changed.
two almost identical functions for these methods. It only forces to repeat
the redundancy for every small change to either.
- abstract out generation and destruction of plib string arrays
- abstract out generation of lists from <value> children
used in dialog.cxx to allow XML dialogs access to their own prop tree via
Nasal's cmdarg(). That way dialogs can generate dynamic content, such as
list entries.
- only call globals->set_initial_waypoints() if the waypoints list address
has actually changed, that is: if it has just been initialized
- remove trailing spaces
- fix indentation
but got changed so that Nasal listeners wouldn't be triggered needlessly.
Doesn't make sense, though, as Nasal will never be available before the
video size is set, and it prevents the window interface from setting the
startup size.)
"Add Air to Air TACAN. With this facility TACAN equipped aircraft can
measure the range and bearing of TACAN equipped AI Aircraft. ATM there is
only one assigned - callsign ESSO1 on TACAN channel 039X, but this can be
easily expanded to include other c/s channel # pairs - just ask me if you
want more."
list) and the arrows are clicked (patch sent to plib; workaround it to
be removed once fgfs officially depends on a plib version that includes
the fix)
- fix (very unlikely) crash in case the widget is redrawn between list
destruction and setting of the new list.
even be more than once in the same list. We need to remove all such instances,
or the a pointer to TowerPlaneRec may become invalid and cause crashes.
The proper fix would, of course, be to be careful with state changes and
to prevent *any* duplication of entries. [OK'ed by David]
colors: <color-{{back,fore}ground,highlight,label,legend,misc,editfield}>
<input-misc>, for example, sets the input field cursor color, <input-legend>
the input field text color. (This feature was always planned as part of the
'theming' capabilities, and most code is already in place. Only this line
was apparently fogotten. :-)
a crash when using the model manager from XML files (which apparently
nobody does, anyway ;-) Now those models work (again), but have no
shadows. Those placed at runtime (e.g. via ufo) still have a shadow.
<property>, except if they are activated, in which case the user input
should, of course, not get overwritten. But if such an input was active and
the user selected a different widget, then its contents were dropped.
Fix that by setting the "DownCallback" for live input fields.
Here is one patch that to make FlightGear run without floating point
exceptions on FreeBSD. Apparently, if we do not ignore floating point
exceptions per this patch, there is some occasional condition where the
nvidia driver is involved in delivering spurious floating point exceptions
to the fgfs process, causing it to core-dump occasionally without the patch.
With only this patch, FlightGear will compile and run properly on
FreeBSD 6.X as long as the nvidia accelerated driver is installed,
modulo proper switches to the SimGear and FlightGear configure script
executions.
Again, kudos to your team for the great work on the big release
push; it is super to see things come together like this!
- reduce it to 20 (30 is excessive and didn't match the property brower look)
- call puSlider with this size explicitly (otherwise its size is derived
from the font size, unlike the arrow buttons!)
respected, and black text on dark grey is a bit hard to read).
TODO: - submit that for inclusion in plib's puAuxList
- drop custom version and use plib's (after 0.9.10)
I had inadvertently terminated a data line when reaching a tab character after
initial data was supplied. I tested the lightning file and it now appears to
read in correctly.
entry was selected. Return 0 in this case, not an invalid string address
(causing segfaults).
dialogs.cxx: don't set property if no list entry was chosen.
When AIFlightPlanCreateTaxi() function is called with the firstFlight
argument set to true, this is supposed to handle situations where the
the aircraft's timetable indicates it should have left between about 5 to
20 minutes earlier. In the previous version, all these aircraft started
taxiing from the first parking location available in the network, due
to the fact that the variable gateId was not assigned a value. In this
patch, route tracing starts from an assigned gate and the network node
following code is fast forwarded to a random location along the taxiways
to give a more realistic and natural distribution of taxiing aircraft
after startup.
This patch further addresses some weird ballet-dancing behavior that
aircraft were showing just prior to/right after parking and which was
related to a number of more or less duplicate waypoints in the transition
from createTaxi() to createParking() to createPushBack() to createTaxi().
Finally, a blatant typing error in the getParking() function was fixed.
at (lon, lat) coordinates -1000,0. This patch fixes the AIModels/Traffic
Manager side of things. The AIModels subsystems allowed the creation of
AIAircraft with non-existent 3D models. If such a model didn't exist, the
aip class didn't get initialized, resulting in the above-mentioned bogus
position information. Here I circumvent this problem by a) only interacting
with the tile loader if the model is visible (and hence has succesfully been
initialized) and b) by disallowing the traffic manager to create AIAircraft
objects if the path to the 3D model doesn't exist.
bunch of memory leaks that had accumulated over the years. FlightGear
doesn't currently bother to destroy and recreate a YASim context, but
at least it can do so now without worry.
groundcache addition -- the ground callback doesn't do anything at
solution time, so the ground plane was unset. Valgrind was whining
about this; it's not clear that it was actually causing a problem.
a race condition ending in warping twice and having huge increments for the
second warp.
I am not aware of such a flush function in glut. So we emulate that by
ignoring mouse move events between a warp mouse and the next frame.
That should make glut behavour aequivalent to sdl behavour.
This isn't the case if the model is destroyed on fgfs exit. To make <unload>
work under these circumstances, one would have to reorder subsystem removal,
but this doesn't seem overly useful, so we'll do it when we really need it.
aircraft models this is only called if they are loaded as AI, not if they
are the model flown by the human pilot. This has technical reasons (too
soon for Nasal/fg), but is useful to distinguish AI and non-AI use, for
example to set a different livery for AI models, or to set different
animation properties.
implement FGNasalModelData class for execution of XML <load> and <unload>
scripts. modelLoaded() is called by the model loader, and the destructor
on branch removal.
modelmgr.cxx:
tilemgr.cxx:
tileentry.[ch]xx:
make scenery and custom objects run their Nasal scripts on loading
and unloading. Let OBJECT_STATIC object not be cached.
<nasal>
<open>print("I'm called on dialog open")</open>
<close>print("I'm called on dialog close")</close>
</nasal>
All Nasal runs in a dialog namespace, so that variables and functions
defined in the <open> block can be used in <binding>s, etc. This is
especially useful for <radio> button handling. See "location-in-air.xml".
mf:
pthread_cancel doesn't seem to work correctly on all supported platforms.
It apparently causes SGBlockingQueue::pop() to correctly leave the thread on
the cancellation point pthread_wait(), but the SGGuard() destructor isn't
called, so the queue mutex remains locked. This triggered an assert() on
pthread_join(). This patch uses an empty ICAO request as signal for the
thread to terminate itself.
I have implemented a Honeywell MK VIII EGPWS emulation for FlightGear.
The MK VIII is an Enhanced Ground Proximity Warning System aimed at
regional turboprop and small turbofan aircrafts such as the Citation,
Citation Bravo, B1900D, Beechcraft 99 and L410.
Frederic Bouvier:
make the MSVC compilation possible. Rearrange base package directories.
The original code selected the most preferable runway combination,
regardless of which combination was currently active. This patch
builds in some additional resistance against change, by keeping
track of which runways are already in use, and forces a change
in active runways only when new (wheather/time of day) conditions
force it to do so, resulting in much more consistent runway assignment.
behavior.
and in the calculation of the launchbar angle (by Vivian).
It also calculates the holdback angle, and sets a Boolean value which
can be used to initiate the release of the catapult strop submodel at
the appropriate moment (new code by Vivian).
control to piston engines that allows external scripts to control the
turbo/supercharger boost programatically by setting this axis to
values in the range [0:1]. It also adds a "turbo-lag" attribute (a
time in seconds) to engines implementing turbocharger spooling delays.
This isn't terribly well tested, but doesn't seem to have broken
anything.
I am attaching a trivial patch that changes the normalization from 24 to
12 in turn_indicator.cxx. With this change, the pa24 tc has a turn
indicator spin value in the property tree of 0.9996 and the same value
for the pa28-161 is 1.0, so there is no harm to a 24 volt electrical
system in this change. Should the battery or alternator put out a lower
voltage than 12 volts, the spin value goes down and the tc shows a
negative turn that increases as the voltage gets less. This file shows
you as the author. If you are comfortable with this change, commit it
to cvs and the tc will be correct even for 12 volt systems.
propeller pitch stops for constant speed propellers. The default
values are the same as the previous hard-coded values. The new
attributes, "fine-stop" and "coarse-stop", are documented in the base
package, Docs/README.yasim.
- remove cleanup handler that unlocks unused mutex
- make the result_queue a locking queue (blocking is only done in the
pop() anyway, and this isn't used in the thread at all)
- don't disallow thread cancelling in the request_queue's pop(), which
is the only cancellation point in this thread
This patch makes use of the vectors now available in simgear with that past
patch. And using that it simplyfies the carrier code somehow.
- Small additional factory's to the quaternion code are done in the simgear
part. Also more explicit unit names in the factory functions.
- The flightgear part makes use of them and simplyfies some computations
especially in the carrier code.
- The data part fixes the coordinate frames I used for the park positions in
the carrier to match the usual ones. I believed that I had done so, but it
was definitly different. Also there are more parking positions avaliable now.
The new multiplayer patch with an extension to transmit some properties with
the base package. The properties are transmitted in a way that will not
immediately brake the packet format if we need new ones.
Even if the maxmimum number needs to be limited somehow, that format might
work well until we have an improoved packet format which is even more compact
and that does not require to retransmit redundant information with each
packet.
That part is relatively fresh and based on that what Oliver provides on his
multiplayer server web page.
The properties are transferred to the client and I have modified the seahawks
rudder animation property to use a relative property path to verify that it
works appart from the fact that you can see it changing in the property
browser.
The movement is still a bit jerky, but that can be fixed/tuned later without
again braking the packet format.
This patch makes FlightGear at least compile on MSVC. I hope I have removed
reference of my other local changes. DSP and DSW files are included for
reference. They have been reconstructed with am2dsp.pl. I had to introduce a
change to am2dsp because of the need of filenames with embedded spaces. (Yuck)
The major direction is to remove clutter like the _USE_MATH_DEFINES and have it
on the compiler command line sice there is no central include file. You will
have to put it on the command line for your locale Project files, if it not
there, already. I added the _CRT_SECURE_NO_DEPRECATE define for 2005, since it
does no harm to other VC version.
the mouse pointer to a new position. Otherwise it can happen that the new
position is first set, but then come a few still unprocessed events for the
old position. This makes ugly jumps in mouse view mode.
the mouse rather than wrapping it. Wrapping around to the other side
of the screen has very bad consequences when using the mouse for
flying or viewing -- it can result in sudden jumps in the controls or
the viewpoint when the mouse jumps to another side of the screen.
Right now, the mouse is constrained to stay between 25% and 75% of the
screen on both the X and Y axis -- whenever it hits an edge, it jumps
back to the centre of the screen again (which causes no control or
view jump).
or write to the color properties in /sim/screen/. If this Nasal/GUI
implementation turns out to be too slow, we'll write a generic OpenGL/plib
version simliar to the ATCdisplay code. (OK'ed by Andy and Stuart)
or write to the color properties in /sim/screen/. If this Nasal/GUI
implementation turns out to be too slow, we'll write a generic OpenGL/plib
version simliar to the ATCdisplay code. (OK'ed by Andy and Stuart)
or write to the color properties in /sim/screen/. If this Nasal/GUI
implementation turns out to be too slow, we'll write a generic OpenGL/plib
version simliar to the ATCdisplay code. (OK'ed by Andy and Stuart)
scripts that load/write user specific data that shouldn't go to PWD, and
can't go to $FG_ROOT (due to permissions and clean separation of 'official'
data and local modifications)
right corner, not those that are result of centering a dialog if no x/y are
given. This centers screen.log messages correctly. But maybe we have to
rethink that special meaning of negative coords altogether.
This patch removes some useless indirection when creating AIModels. It
obsolets AIScenario*.
AIEntities are just an intermediate copy of an other intermediate copy of an
xml file on the way from the ai scenario configuration file to the AIModels.
As such the AImodels can now be created directly from the property tree read
from the scenario file.
This reduces the amount of work needed to add an other AIModel and reduces the
amount of copy operations done during initialization.
It also moves internal knowledge of special AI models into these special AI
models class instead of spreading that into the whole AIModel subdirectory
which in turn enables to use carrier internal data structures for carrier
internal data ...
Also some unused variables are removed from the AIModel classes.
I believe that there are still more of them, but that is what I stumbled
accross ...
Tested, like the other splitouts these days in a seperate tree and using the
autopilot for some time, and in this case with a carrier start ...
problems because a lot of people already have their *real* preferences
set in ~/.fgfs/preferences.xml (and don't want fgfs to stomp over them),
because the name doesn't tell people that their data aren't save there
(comments!), and because this is inconsistent with the global preferences.xml
file, where user changes *are* respected.
This patch is a combined effort by Gregor Richards, Oliver Schroeder, and
Vivian Meazza (and code cleanups and improvements by Erik Hofman). It corrects
the bug in which a Multiplayer model responds to local inputs, and the view
number bug which caused certain aircraft to appear as cockpit only models. It
passes remote properties over the net, and all major control surfaces and gear
are now animated correctly, providing that the local ~model.xml file contains
no leading "/" in the <property></property> data entries. MP objects
are now extrapolated using 1st and 2nd derivatives to make their movement
appear more smooth. The sim is now halted while a new client joins the net.
Known problems with MP are non-display of the remote client under certain
circumstances of starting/resetting, and a freeze on starting. These bugs are
long standing, and are not addressed by this patch.
Special thanks must go to AJ Macleod for his patient testing of this patch over many evenings.
We have also moved part of multiplayer into AIModels as part of the ongoing
development of MP.
because a dialog button can get pressed when its callback isn't available
any more. Ideally, we would close the dialog or update its buttons when
this happens. But this requires bigger changes.
/sim/messages/{atc,pilot,ai-plane,ground,approach}
These can the be used for differenct screen.log colors and for different
voices. (Aircraft & tutoruals may want to write to /sim/messages/copilot)
Fix the current buggy rain orientation behaviour for the views attached to the
aircraft (while still inheriting bugs with the views attached to anything else).
I had massive problems with tower.cxx, so I decided to doublecheck all
containers and iterators in order and found lot of potential problems.
Now I can fly with "debug on" of KSFO for minutes without problems.
The fix for AIMgr is from Mathias, but I reworked it. So blame me, not him.
- Feet to meter conversion mistake (in AI getGround elev)
- Improved ground following code (not yet perfect, but for now no one will
notice it within the marginal altitiude differences at the taxitrack or
runway)
- Exclusion of the "AI" directory witihin data/Aircraft in
main/init/fgSearchAircraft, to prevent AI aircraft to be picked up by the
aircraft search function
Jon Stockill wrote:
> I've just discovered that when using the null fdm I'm not getting
> updates to /position/ground-elev-m any more. So I can't actually
> retrieve the terrain elevation. Is there somewhere else in the property
> tree I could read this from?
The attached patch fixes this problem.
This patch limits the maximum simtime we do simulation computations for.
That is highly sensible if you run flightgear in valgrind or some realy slow
debug build. In such a case it is possible that flightgear gets totally
unresponsible, because simulation time might increase slower than real time.
That patch introduces a maximum simulation time per rendered frame to limit
that effect.
If the property /sim/max-simtime-per-frame is set to something strictly
positive, the simulation time is limited to that value.
The default is unchanged - no limit.
Anyway, from the point of view of gui responsiveness and responsiveness to
realtime controls like joystick inputs it might be a good idea to limit that
by default to say 1 second. If you have less than 1fps, flightgear is
unplayable anyway and I believe we do not longer need to care for realtime
correctness for that case ...
