🚀 go-pugleaf

In article <1992Nov5.202313.7178@nntp.hut.fi>, jmunkki@vipunen.hut.fi (Juri
Munkki) wrote:
> 
> In article <1992Nov6.034457.11981@waikato.ac.nz> gford@waikato.ac.nz writes:
> >The ball is moving on a sloping table, (slope in y direction). The x component
> >of the velocity remains constant. And the y component  vy(t) = vy(t-1) + a
> >where a is a fraction of gravitational acceleration. 
> 
> I don't think that you can really realistically model a pinball without
> taking ball spin into account. Writing a less than perfect pinball program
> isn't hard, but making the collisions affect the ball spin can make things
> complicated.
> 
> -- 
>   Juri Munkki					       Windsurf: fast sailing
>  jmunkki@hut.fi					      Macintosh: fast software
	It shouldn't be that hard to create a pinball program. Just look in a any
physics book for the equations for consevation of momentum and the like. I
am not sure if you would have 
to take into account the friction of the ball on the surface or whether or
not it is neglible. The tough part should be figuring out how much energy
to add after hitting the ball with a flipper and the like. The way I would
set it up would to store to track the ball's energy and how direction and
moment. each "time" through you add the gravity and check to see if it
hit anything.