LOGO-L> Re: Multiple Turtles

[Yehuda Katz <yehuka@beitberl.ac.il>]

George Mills wrote:
> 
> Yehuda Katz wrote:
> > > > I made a figure with several turtles. My current turtle in No. 1. I want
> > > > to connect it with, for instance, turtle 2. Can this be accomplished
> > > > from my position? (I mean, WITHOUT asking explicitly any of the turtles
> > > > about its POS and AFTER it connecting the two points.)
> > > >
> > > > In other words: What FUNCTION gives me the POS, or HEADING of a turtle,
> > > > while I'm activating another turtle?
> >
> > > Think like a carpenter. If the tool does not exist to
> > > do the job, then build a tool (a jig) to make it so.
> > >
> > > to posturtle :t
> > > localmake "st turtle
> > > setturtle :t
> > > localmake "tp pos
> > > setturtle :st
> > > op :tp
> > > end
> > >
> > > You can do distturtle, headingturtle, orientationturtle, towardsturtle
> > > setposturtle, in the same fashion. I could spend a life time expanding
> > > the library.
> >
> > George,
> >
> > This must be in Logo proper, not in the library, in light of the
> > importance of functional programming.
> >
> > I'm expecting a *primitive* function (instead of the 5 suggested library
> > functions), named maybe TURTLE, that will enable commands like:
> >
> >         SETXY TURTLE 5, SETH TOWARDS TURTLE 4, etc.
> >
> > If I recall well, that was the situation in LogoWriter. I don't know how
> > is it in PC Logo or MicroWorlds. Deserves a check.
> >
> > Thank You,
> >
> > [[Yehuda]]
> 
> This attitude that everything must be a primitive to make it "ok"
> is nonsense.

George,

I didn't say that "everything must be a primitive". All I said was that
the above TURTLE (or whatever you might call it) must be a *primitive*
and not library procedure(s).

Regards...

[[Yehuda]]

---------------------------------------------------------------
Please post messages to the Logo forum to logo-l@gsn.org.  Mail
questions about the list administration to logofdn@gsn.org.  To
unsubscribe send    unsubscribe logo-l    to majordomo@gsn.org.