Scratch

Lucario621 wrote:

Well I'm glad I was able to meet up with you at Scratch Day. 

Lucky. I wish I could meet up with someone who actually knows something about programming in real life. Nobody in my school knows anything about programming. 

P.S. Due to lots of things popping up in my life for some reason I haven't been doing too much Scratching (except for some Wiki editing and posting a project). I just want to let you know that the Snap! image work is still on my mind and I haven't forgotten.

bharvey wrote:

Don't worry, the manual isn't in the critical path at this point.

"The critical path" sounds very dramatic. 

We need to get our hands on one of these and connect it to Snap! Just sayin'. 

fullmoon wrote:

We need to get our hands on one of these and connect it to Snap!

Yeah!

bharvey wrote:

I think it's more important to be compatible with Scratch than to be compatible with other languages.

Fair enough.

I have the strangest feeling I've requested this before, but do you have a script that will remove all nested items in a list and report them as one flat list?

For example, the list

[ [ i ],[ ii ] ];
[ [ iii ],[ iv ] ];
[ v ];

would return

[i];
[ii];
[iii];
[iv];
[v];

Sorry for my terrible illustrations. >_<

Really what I want to do is find an item regardless of nests in a list and then identify its location in the original list.

Last edited by shadow_7283 (2012-05-26 20:06:04)

shadow_7283 wrote:

do you have a script that will remove all nested items in a list and report them as one flat list?

But if you want to report where in the original list some atom is found, then you don't want to flatten it; that loses the structure information!  You want to write a recursive procedure that goes through the list recursively deep-indexing the desired value, and when it finds it, stick the toplevel item number in front of the index list from the recursive call.

Hey bharvey, can you write a BYOB script, without defining any procedures, which reports itself? I tried, but it didn't work too well.

P.S. I ran into this problem when trying to write an executable which saves a copy of itself somewhere. I used the obvious way of getting its contents via the file path, then saving those contents somewhere else; but then I got thinking about a pure self-reporting script.

P.S.S. Call me a hacker if you will, but I was writing that for a (legal) purpose. Honest.

Last edited by Hardmath123 (2012-05-27 12:18:46)

bharvey wrote:

Call me a hacker if you will

"It is better to be described as a hacker by others than to describe oneself that way."

Ah, yes! So what you're really doing is inviting us to call you a hacker!     

bharvey wrote:

Hardmath123 wrote:

a BYOB script, without defining any procedures, which reports itself?

Oh no!  You've given Jens an argument for not displaying rings around procedures on output!

Anyway, this probably isn't what you meant, but is the best I could do quickly:

http://cs.berkeley.edu/~bh/thescript.png

I'll think about it some more...

Are you thinking of something like a quine?

Last edited by blob8108 (2012-05-27 13:13:48)

#byobguide guys, can you tell me when you finished discussing the rings/calling parameters? the screenshots i still have to take are pretty much about that...

i also tried to make a 'last changes' block, but when assigning a var to http://snap.berkeley.edu/snapsource/history.txt and displaying it, it crashed... 

bharvey wrote:

xly wrote:

I've used the good old method with SET + CShape Ring +

There's a "Make a Block" button at the bottom of Variables.

This is true. But the block can't be edited as Right--click freezes Chrome beta. Other browser like Firefox are not better than Chrome.
Export feature works.The xml code of the application can be exported (and send by email). This code is uploadable on a Snap! + PC
Android 4 has now a Screen capture native feature which gives nice pictures of the application.
For the moment it is easy and convenient as long as Snap! applications are written by using external Mouse and Keyboard linked by Usb or Bluetooth.
Looking to the future, one can foresee that the personal computer world will change in the next coming years with new light inexpensive PC solutions derived from the Tab paradigm ( see for example http://apc.io/ for an Android mother board at 50 $) but using Mouse/keyboard (*)
Snap! will ideally fit to this new concept.

(*) Having used dozens of personal computers since my first Apple in 1982 I am impressed by the new concept of Tabs Apple/Android operating systems, both based on Unix kernel + App Store providing a bunch applications easy to load/buy/test/unload and providing all basic tools for a basic user at a low cost.
On top of that applications can also be loaded on your mobile phone !
Nevertheless, if you need to create yourself your own application or information at home or office (and not only browse) : text, calc board, Snap! project, etc then you will prefer to use Mouse+Keyboard, what I am already doing with my Acer Tab 500 + Snap!

bharvey wrote:

shadow_7283 wrote:

do you have a script that will remove all nested items in a list and report them as one flat list?

http://byob.berkeley.edu/flatten.png

But if you want to report where in the original list some atom is found, then you don't want to flatten it; that loses the structure information!  You want to write a recursive procedure that goes through the list recursively deep-indexing the desired value, and when it finds it, stick the toplevel item number in front of the index list from the recursive call.

It's probably for some extended <[list v] contains [item]?> feature.

shadow_7283 wrote:

Is the exclamation point in Snap! actually part of the name?

Yep. 

scimonster wrote:

@jens, bharvey: You should create BYOB/Snap! forums, so that we can have more organized discussions, instead of using this super-long and messy thread.

As they've said a few times, they're waiting for the official Snap! release before creating a new topic/forum.

scimonster wrote:

instead of using this super-long and messy thread.

What, you mean you're not curious about why Lucario has a brick wall coming out of his head?