Subject:
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Re: A modest proposal/challenge/whatever: 'bot wrestling
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 19 Mar 2000 18:07:57 GMT
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Viewed:
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1182 times
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If you need further inspiration for this idea, get hold of a copy of Jack
Vance's SF book "The Face" and read about Haudal, a game where some number of
players start out in a central yellow circle, which is surrounded by a larger
green cirle, which is in turn surrounded by a lager blue circle. Players
attempt to eject each other from yellow, then green, blue, and finally out into
limbo. The surviving player not ejected wins, or if the remaining players
choose not to further challenge each other, they share the prize money in
proportion to what circle each ended up in. In the original game, injuries and
fatalities were not uncommon; perhaps a Mindstorms version should be toned down
a tad in this aspect :-)
-Bill Leue
In lugnet.robotics, Brian Connors writes:
> --- Doug Weathers <weathersd@metro.dst.or.us> wrote:
> > in article
> > 20000317185227.4930.qmail@web906.mail.yahoo.com,
> > Brian Connors at
> > lego-robotics@crynwr.com wrote on 3/17/00 10:52 AM:
> >
> > > Lego Wrestling, anybody?
> > >
> > > It's sort of a natural extension of something like
> > > Robotag and is vaguely inspired by the WWF's • Brahma
> > > Bull Rope match.
> >
> > WWLM? :)
> >
> > > Basically, two robots get in a
> > > circular, one-meter-wide ring, are lashed together
> > > with a plastic or twine lanyard about a quarter • meter
> > > apart (so they don't have to worry about finding • each
> > > other),
> >
> > There should be a standard for how the lanyard
> > should attach to the robot.
> > A standard assembly of some kind. Perhaps it should
> > incorporate a swivel
> > and be mounted on the top. Or do you just want to
> > have it hooked to the
> > side of the robot?
>
> Actually, that's part of the challenge: designing a
> legal lanyard support that won't either intentionally
> break off or get tangled. I sort of envision it being
> attached to opposite ends of a touch-sensor bumper,
> but that's not the only possibility.
>
> > > and then try to either throw each other out of
> > > the ring (a la sumo)
> >
> > It would help if the robots knew the limits of the
> > ring. Perhaps a warning
> > stripe painted on the floor a few inches inside the
> > actual perimeter of the
> > ring.
>
> One ahead of you on that one. The way I envision it,
> the ring actually has a 50-cm-diameter white center
> and a 25-cm red outer zone, idea being if you're in
> the red zone and moving backwards it's time to start
> the motors.
>
> > > or immobilize/incapacitate each
> > > other.
> >
> > Who wins in this circumstance?
>
> Ref's call. An obvious submission maneuver equals a
> win, as does any clear indication that one 'bot did
> initiate the situation. If it's unclear, it's declared
> a stalemate.
>
> > > Winner is last 'bot standing after thirty
> > > seconds.
> >
> > I think that thirty seconds is a bit too short of a
> > time limit. Give the
> > poor things time to figure out what to do! I'd
> > suggest that if nobody has
> > won within two minutes then the match is a draw.
>
> That's flexible, but with such a small ring it's
> likely that if a ringout doesn't happen within the
> first thirty seconds the match is stalled anyway. See
> above for details...
>
> > >
> > > Thoughts? I'm doing a writeup right now on one way • of
> > > doing it, and I'll have it up next to the • (shameless
> > > plug) What Set Should I Buy FAQ at
> > >
> > > http://www.geocities.com/connorbd
> > >
> > > early next week.
> > >
> > > /Brian
> > >
> > > =====
> > > --
> >
> >
> > In the MIT Lego competitions, individual robots have
> > to qualify by being
> > able to beat an inert block. If they can't score
> > higher than the block,
> > they probably won't do too well against a real
> > opponent.
>
> :-)
>
> Shouldn't be much of a problem here; the block either
> gets whipped out of the ring with a sort of drag-halt
> maneuver (a whip) or simply pushed out (a slam). Of
> course, practicing a submission-type maneuver (a
> "chain" or an abbreviated drag) won't be much good
> against an inanimate target, but you don't expect a
> punching bag to hit back either.
>
> > How would you qualify a RoboRoper bot? What sort of
> > inert block would you
> > use?
>
> > How would you compete against a heavy bot with
> > rubber treads that won't drag
> > worth beans?
>
> Ram it. Over and over again until something falls
> apart if necessary. (That's the "slam" maneuver I
> mentioned above)
>
> > I don't see a good way to make a robot that can
> > upset the other one by
> > yanking on the rope. Trying to tow the opponent out
> > will result in the In
> > my mind, this turns into a sumo competition. As far
> > as I can see, the rope
> > can only be irrelevant (pushing the opponent out) or
> > cause a tie (entangle
> > both robots). Maybe I missed something and need to
> > spend more time thinking
> > about it.
>
> It depends on what you consider a win. It is actually
> part sumo in conception (mainly because I can't see a
> robot being smart enough to do much else), and a
> simple drag actually results in a self-DQ because the
> dragger leaves the ring first. Even if that's not
> considered the equivalent of an own goal, it simply
> reduces the whole thing to a sort of tug-of-war.
> That's not that fun or creative.
>
> > Now, if you change the rope to a rigid rod, things
> > start to get more
> > interesting.
>
> *That's* very true. I suppose we could have two types
> of matches: rod and lanyard. (Freestyle is still out,
> unless you have thoughts of playing with light
> sensors.)
>
> /Brian
>
> =====
> --
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