Scratch

Jens wrote:

Jonathanpb wrote:

Hi... when I run LINE in Scratch, it's at a nice speed - but when I run it in BYOB, it's very slow... any ideas why?

I'd love to look into this, can you tell me where I can find LINE, is it a project of yours?
Thanks!

The original version by RHY3756547:
http://scratch.mit.edu/projects/RHY3756547/715593
lonwol's offline version:
http://scratch.mit.edu/projects/lonwol/916121

Last edited by meew0 (2010-06-16 03:43:32)

Thanks, Jonathanpb, for posting the link to LINE. I'm investigating this now.

(Ugh, this is like one single giant script of spaghetti code, so it takes forever to load in Scratch)   
But, hey, it loads pretty fast in BYOB 
Was this some kind of contest about who makes the longest script ever?
But otherwise it's actually a pretty cool project!

Last edited by Jens (2010-06-16 06:33:24)

Hmmm, assuming that the script reports the variable named RESULT this block works for me in 019, even if I change and add additional elements. Where did you add the 4 words to?

Thanks!

@bharvey& Jens

See herewith 2 copies of screen errors.
http://www.xleroy.net/ByobErrors/Thumbnails.html

The problem occurs when I try to save my Byob project.
It's linked to the following issue. As I've totally changed my way of handling the many variables of 3 sprites, I decided to delete the dozen of previous variables, now useless..

This brings the SAVE problem.
Knowing that I've retried to delete the variables in a very softway, calmly, sprite by sprite. I've no more SAVE issue...but all variables previously deleted re-appear more or less mismatched in the list of sprite variables !

OK, I keep them now, while you fix this issue.

Good luck !

nXIII wrote:

I don't like to make block requests, especially for BYOB 3, but you really do need a

(number of arguments of ())

block.

b-b-b-bump!

I need this for my evaluator ... and it's very useful in general. I would make it in Elements, but I don't want to lose it to future versions.

Last edited by nXIII (2010-06-16 15:35:31)

bharvey wrote:

jstout wrote:

With the functional approach I only need one custom reporter block which reports the block that, when run, does the goto x:y:, then the set direction:, and a variable to store the block reported. Then to restore the position I just run the contents of the variable.

With some regret, because I love the elegance of your solution, I think I've thought of a simpler way for most applications:

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

But your way has the advantage that you can call the restore-state procedure more than once.

Oh I do like that! If you need to restore the state a second time you'd need to have done something after the first restore, so you could just wrap the first do protecting sprite block in another couldn't you?

Your approach is a sort of mirror image of mine: mine uses a block to save the state and a first class block to restore it around some procedural code, as opposed to using procedural code to save the state and restore it, but around a first class block.

And it hides the nasty (even if elegant!) details.

John

Last edited by jstout (2010-06-16 16:39:39)

jstout wrote:

If you need to restore the state a second time you'd need to have done something after the first restore, so you could just wrap the first do protecting sprite block in another couldn't you?

If you have to restore some small fixed number of times, yes.  I'm envisioning the sort of situation in which you repeatedly reset the state of something, say whenever the user types some key, or whenever the sprite runs into a wall, or whatever.

Jens wrote:

Hi Xavier,
Please try again with 018 or 019 and let me know if the issue persists.
Thanks!

OK, the issue is fixed with version 19.
Many thanks
The result of my first Byob tutorial game at :
http://www.xleroy.net/ByobTuto/thumbnails.html

Jonathanpb wrote:

Do you have any idea why projects run differently in BYOB? 

In fact, yes I have, and I've been working the last nights on fixing this. Hang on, this may take a while to get at ...

Found category "byob easter egg fun" in Elements... intriguing...

Dumb question: How do you turn off full-screen (end-user) mode in BYOB? I seem to recall a menu item.

Last edited by fullmoon (2010-06-17 18:46:54)

fullmoon wrote:

http://img41.imageshack.us/img41/5964/yeeee.jpg

Whoa! How'd you get that block?

shadow_7283 wrote:

fullmoon wrote:

http://img41.imageshack.us/img41/5964/yeeee.jpg

Whoa! How'd you get that block?

Believe it or not, all I had to do was write a block that returns its calling sprite. Scratch took care of the rest. With a little modification you can even put sprites in a list! It doesn't do too much good, though, a "sprite name" block would accomplish the same thing. It's much cooler though. I've always wanted a sprite to be able to "say" another sprite! (And you can check collisions with a list of sprites)

Last edited by fullmoon (2010-06-17 21:11:05)