torcs-users Mailing List for TORCS - The Open Racing Car Simulator

Hi all,

I decided to make further improvements on the TRB1 liveries again.
I like flowers on British Racing Green too, but it was too plain IMO.
So I made this new livery. It's a black on chartreuse "squared"
design, with a simple anime-face on the sides and bonnet of the car.

I guess I wanted to go for an over-the-top "drift-style" livery here,
because I found most of the TRB1 remakes boring compared to the
SIMPLIX liveries.

Preview:
http://i41.tinypic.com/1gj7s4.jpg
Download:
http://www.filefactory.com/file/af8bb7a/n/animeage-car2-trb1_zip

An XCF of this is availible upon request; it's so huge I cannot
post it with the livery itself. As for where it goes, it could go in the
robot of your choice or maybe the human driver's folder.

Enjoy!
Haruna.

Hello, I want to give my opinion on what I consider to be the two most
important issues with TORCS right now.

The most important is the tracks. This is related to my question a few
weeks ago: "Is TORCS more unstable on some tracks?". I got an answer
from Wolf-Dieter Beelitz, he had investigated the thing and found that
non-continous tracks made some robots to crash. Somehow I must find a
subtle and elegant way of hinting that he should write about it here.
Hmm, perhaps that will do. With the current trackeditor it is, to my
knowledge, impossible to make a perfect connection between the last and
first segments of the track.

TORCS need a new trackeditor with a finish function that closes the
track. (I know, it's trivial to make a track that's impossible to
finish.) With this new trackeditor the current tracks must be repaired.

If TORCS crashes too often because of errors in the tracks other
features, nice cars, good robots, online play, whatever is of no
importance. Therefore I consider a new trackeditor to be the most
important issue to work on in TORCS right now.

The second issue is the driving quality of the robots. I made a long
rant about it a looooong time ago and I want to return to it. It may be
that the robots are optimized for long distance racing against other
robots but that is not good enough for driving against humans.

If the robots are too aggressive humans may adopt different strategies
such as using a superior car, driving at amateur level so they will not
get damage or driving very defensively and letting robots pass when in a
tight situation.

None of these strategies is a realistic and if the robots in TORCS
forces humans to adopt an unrealistic driving strategy then TORCS cannot
be called a simulator.

Therefore the robots must drive as humans do in real life. It may be
that there are robots that drive very well but they are not in the TORCS
distribution and that is what counts.

I would very much like to hear what you think about these issues. What
is important to you?

Regards
Kennet



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Hey, I posted this over on the berniw forum, but thought I'd send it round
here too to see if anyone else has any ideas.

I'm trying to work out the deceleration of a car when applying maximum
brakes (car->_brakeCmd = 1). I have been using the nascar car, but for some
reason, whenever I make a call to the "max pressure" value of the brake
system using:

GfParmGetNum(car->_carHandle, SECT_BRKSYST, PRM_BRKPRESS, (char*) NULL,
1000000);

I get 14000000. The actual value (taking into account the factor of 1000 due
to the value being described in kPa in the xml file) should be 11000000.

I have now tried this with a few other cars and seem to get the correct
value for them, just with the nascar car it gives the wrong one. I've looked
at all the nascar xml files I can find to make sure.

Also, as I mentioned before, I was trying to work out the deceleration of
the car. Part of the equation is to calculate the force from the brakes. At
present I'm taking the "max pressure" field from the xml file and
multiplying by the combined area of the 4 brake pads. This is making the
assumption that each brake pad can exert the pressure to that value, is this
right? Or does the field indicate the pressure the brake pads combined can
exert?

At present I'm taking it to mean the former and am getting some ridiculously
high deceleration values (circa 9872 m/s squared). Can anyone point out
where I might be going wrong?