[ODE] Cheap Car simulation

DjArcas djarcas at hotmail.com
Mon Jul 21 08:33:01 2003


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I've got a car simulation that I'm happy with, using a box, 4 spheres, =
and 4 hinge2's, and I'm applying forces to the hinge2 motors.

However, with large numbers of cars, this is far too expensive - =
especially in 10 or 20 car pileups (too many motors and joints =
involved!). My next thought is to have a much simpler car simulation, =
but I'm not too sure how to go about doing this.


I have two guesses...

    First idea is to have a box sitting on the ground. It would have low =
friction in direction1, higher in direction2. I would apply forces =
straight to this box to push it along. The problem here is that the car =
wouldn't go up a kerb as much as somersault over it.

Secondly is to have the car sitting on some sort of single soft spring.=20

I'm really not sure how to go about doing this - does anyone have any =
good ideas or input?

Adam

http://www.projectorgames.com

Big... bigger... biggest!
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<DIV><FONT face=3DArial size=3D2>I've got a car simulation that I'm =
happy with,=20
using a box, 4 spheres, and 4 hinge2's, and I'm applying forces to the =
hinge2=20
motors.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>However, with large numbers of cars, =
this is far=20
too expensive - especially in 10 or 20 car pileups (too many motors and =
joints=20
involved!). My next thought is to have&nbsp;a much simpler car =
simulation, but=20
I'm not too sure how to go about doing this.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have two guesses...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; First idea is to =
have a box=20
sitting on the ground. It would have low friction in direction1, higher =
in=20
direction2. I would apply forces straight to this box to push it along. =
The=20
problem here is that the car wouldn't go up a kerb as much as somersault =
over=20
it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Secondly is to have the car sitting on =
some sort of=20
single soft spring. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm really not sure how to go about =
doing this -=20
does anyone have any good ideas or input?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Adam</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"http://www.projectorgames.com">http://www.projectorgames.com</A><=
/FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Big... bigger...=20
biggest!</FONT></DIV></BODY></HTML>

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