LOGO-L> Re: Multiple Turtles

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

George Mills wrote:
> 
> > George,
> >
> > 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]]


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