Path: chuka.playstation.co.uk!news From: yaroze@theburrow.co.uk (Barry & Robert Swan) Newsgroups: scee.yaroze.programming.3d_graphics Subject: Re: Interesting Game Physics Date: Sun, 20 Jun 1999 18:40:55 GMT Organization: PlayStation Net Yaroze (SCEE) Lines: 22 Message-ID: <376d35b5.13119163@www.netyaroze-europe.com> References: <3763E7F7.2A355F0C@which.net> <7k2hpr$hn712@chuka.playstation.co.uk> <376591f4.1188225@www.netyaroze-europe.com> <7k540k$75r4@chuka.playstation.co.uk> <3766dc1b.572756@www.netyaroze-europe.com> <7k83cq$75r14@chuka.playstation.co.uk> NNTP-Posting-Host: pEBs11a01.client.global.net.uk X-Newsreader: Forte Free Agent 1.11/32.235 On Wed, 16 Jun 1999 12:53:49 +0100, "Mike Hatfield" wrote: >If you want me to go from 20m/s to 0 in 10 seconds using constant >retardation, then I'll do it over 100m. If you only want me to go 50m, then >I have to come to a halt within 5 seconds. What you can't do is ask me to >take 10 seconds but only travel 50m. Exactly - beacuse we knew that there could be an 'a' for certain instances of 's, t, u + v' we quickly assumed that there were solutions for all values. Which of course there aren't. Cue much slapping of heads and staring into the distance. Idiots :) The only real soluition is to include differentiation, and unsurprisingly were avoiding it a bit :) having said that, it wouldnt give us the visual effect we wanted anyway... I was particularly impressed by the way I substituted one formula into another, only to completely remove 'a' from the equation, leaving me wondering what the hell just happened :) Rob