[lively-kernel] Lively "cheat sheet"

[Steve Thomas]

Jens/Rick,

Thanks that works now.  Couple of other comments/questions:

Are there any "pen use" type commands (ie: pen down, etc)?

If I decided to create my own "forwardBy" function which could apply to any
morph, would a good approach be to create a Trait and then apply that Trait
to each morph? I tried to figure out how to do this looking at the example
but couldn't get it working.  Also I would need to add a "heading"
attribute as well to make this work.  Any suggestions/help appreciated.

Since you have showHalos, wouldn't hideHalos be a better name than
removeHalos? To me remove indicates no longer there and I would need to add
it back.

Page3 of profesores states:

Besides containing all visible morphs, the world also provides all kinds of
functionality. Right click *on the morph* to see the World's menu! There
you can find tools, parts and the PartsBin and you can save the world in
its current state.

I think you should remove "on the morph".  Also the "TutorialArea" is sized
such that you could think you are clicking on the world and nothing happens
(because you clicked on the "TutorialArea" morph).

I tried to "Report a Bug" and wound up creating a blank one (because I
clicked cancel).  So I simply edited the lively web page and saved it (I
love how you folks eat your own cooking, everything is lively :).  So I
assume that is the way to "update" and issue?

Last question, should I be using lively-web.org instead of lively-kernel.org
?

Cheers,
Stephen

On Tue, Nov 5, 2013 at 6:27 AM, Lincke, Jens <Jens.Lincke at hpi.uni-potsdam.de
> wrote:

>  Hi, Steve
>
>  a point in Lively can be constructed using „pt(100,10)“
> so try „this.moveBy(pt(100,10))“
>
>  We could have made the moveBy method more clever in accepting more kind
> of arguments, but as I remember we did not do it due to performance reasons.
> Maybe nowadays this should not make a difference any more.
>
>  Best, Jens
>
>  Am 05.11.2013 um 00:12 schrieb Steve Thomas <sthomas1 at gosargon.com>:
>
>  Thank you, this is very helpful.  I have been wanting to try and figure
> out how to use Lively in the same way I use Etoys with kids, but haven't
> had/made the time to learn the things I need to know.  This definitely
> helps reduce the learning time.
>
>  One thing I was trying to do was to perform some basic "turtle" commads
> like moveBy, when I opened the inspector and tried *this.moveBy(10) * it
> always moved to 0,0 no matter what number I entered.  I then say the cheat
> sheet said* moveBy(point)  *so I tried moveBy(100,10) and still the same
> behavior.
>
>  It would be great if at some point the cheatsheet had links for each
> "cheat" to a tutorial/example page.
>
>
>  Thanks,
> Stephen
> P.S. At some point it would be great if there were scripting tiles :)
>
>
> On Mon, Nov 4, 2013 at 1:57 AM, Robert Krahn <robert.krahn at gmail.com>wrote:
>
>>  To provide a concise overview of the most needed interfaces when
>> working with Lively I have assembled a small list here:
>>
>>  http://lively-web.org/users/robertkrahn/lively-cheat-sheet.html
>>
>>  You are very welcome to extend the list or make extension requests.
>>
>>  Best,
>> Robert
>>
>> _______________________________________________
>> lively-kernel mailing list
>> lively-kernel at hpi.uni-potsdam.de
>> http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel
>>
>>
>
>
>  --
>
> To some of us, writing computer programs is a fascinating game. A program
> is a building of thought. It is costless to build, weightless, growing
> easily under our typing hands. If we get carried away, its size and
> complexity will grow out of control, confusing even the one who created it.
> This is the main problem of programming. It is why so much of today's
> software tends to crash, fail, screw up.
>
> When a program works, it is beautiful. The art of programming is the skill
> of controlling complexity. The great program is subdued, made simple in its
> complexity.
>
> - Martin Harverbeke (from Eloquent JavaScript<http://eloquentjavascript.net/index.html>
> )
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-- 

To some of us, writing computer programs is a fascinating game. A program
is a building of thought. It is costless to build, weightless, growing
easily under our typing hands. If we get carried away, its size and
complexity will grow out of control, confusing even the one who created it.
This is the main problem of programming. It is why so much of today's
software tends to crash, fail, screw up.

When a program works, it is beautiful. The art of programming is the skill
of controlling complexity. The great program is subdued, made simple in its
complexity.

- Martin Harverbeke (from Eloquent
JavaScript<http://eloquentjavascript.net/index.html>
)
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