Re: How to compute distance between multiple cars

Bernhard Wymann <[email protected]>
Newsgroups gmane.games.torcs.general
Organization wytec
Message-ID <[email protected]>
Hi

What input, what is the question? The "issue" is covered in the robot 
tutorial, as well the "wrap around" on the start lane.

Best regards

Bernhard

On 10/25/2012 10:04 PM, ANAND MADHUSOODANAN wrote:
> Hi Berhard,
>                     For calculating the distance between two cars in the simulator, can we use a simple formula like   (car->_trkPos.seg->lgfromstart - car2->_trkPos.seg->lgfromstart). I tried it in the simulator and i seem to be getting values which seem correct when comparing visually with the two cars in the race. Can you give me some inputs on this?
>
>
>
> Regards,
> Anand.
>
>
> On Oct 24, 2012, at 6:42 PM, Bernhard Wymann <[email protected]> wrote:
>
>> Hi Anand
>>
>> Nothing is wrong, the practice session menu just allows one driver, try Quickrace.
>>
>> Best regards
>>
>> Bernhard
>>
>> On 10/25/2012 12:36 AM, Anand Madhusoodanan wrote:
>>> Hi Bernhard,
>>>                   Thanks for the suggestion. I tried calling the update
>>> method of the Opponent class from within my defined driver class(the one
>>> similar to bt.cpp in your tutorial). It compiles without error, but i
>>> now i get this strange problem that i cannot add more than 1 car in
>>> practice mode. I can see all my defined robots, but i can add only one
>>> of them. Any ideas what could be wrong?
>>>
>>>
>>>
>>> Regards,
>>> Anand.
>>>
>>>
>>> On Mon, Oct 22, 2012 at 3:47 AM, Bernhard Wymann <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>>     Hi Anand
>>>
>>>     I guess this is described here:
>>>
>>>     http://www.berniw.org/torcs/__robot/ch7/opponents.html
>>>     <http://www.berniw.org/torcs/robot/ch7/opponents.html>
>>>
>>>     If you want any other measure of distance (e.g. euclidean) just
>>>     adopt the opponent class accordingly. The update happens happens in
>>>     the driver, just skim the whole tutorial, everything is there.
>>>
>>>     Beware, the simulation timestep and the robot calls are not the
>>>     same, see here (but this is just terminology):
>>>
>>>     torcs.sourceforge.net/index.__php?name=Sections&op=__viewarticle&artid=30#c6_6
>>>     <http://torcs.sourceforge.net/index.php?name=Sections&op=viewarticle&artid=30#c6_6>
>>>
>>>     Hope this helps, enjoy:-)
>>>
>>>     Best regards
>>>
>>>     Bernhard
>>>
>>>
>>>
>>>     On 10/21/2012 09:13 PM, Anand Madhusoodanan wrote:
>>>
>>>         Hi,
>>>               I have managed to add multiple cars in the TORCS simulator and
>>>         having them run in hard coded scenarios. How can I calculate the
>>>         distance between two cars for every simulation time step?     Could
>>>         someone help me out?
>>>
>>>         Regards,
>>>         Anand.
>>>
>>>
>>>
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>>
>
>


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