Re: [tuxracer-devel] Keyboard

[Peter A. <P....@bi...>]

Jasmin Patry wrote:
 
<snip>

> 
>        ^ velocity
>        |
>        |
>        + Tux
>       /
>      /
>     L frictional force
> 
> The magnitude of the frictional force is also increased to reflect the
> fact that drag is increased when Tux puts his hand down (so turning does
> slow him down, a little bit).

Thats neat....
 
> For sharp turns, you have a few options.  You can play with
> calc_net_force and change how the steering part works when a sharp turn
> is being performed,

I am not sure on the physics yet (I've only done first year 'A' level
physics so far...) (Please comment and say thats not going to work etc)
1. Tux could stick a leg  hard into the snow, and use it a as a pivot.
For practical reasons I think the pivot would need to be a lot further
out that tux's leg, so this wouldn't look 100% realistic.  The physics
of this are fine, but I was planning on making it so the pivot could
only take a certain force, so if tux was going faster than that
the pivot would slip, and tux would lose velocity (due to friction).
I can't quite work out the physics of this, despite my best efforts
with the ascii art.

<snip>

The keyboard stuff seems niceley set out so it shouldn't present any
difficulties.  Thanks for the explanation.

			Peter Allen