Scratch

TorbyFork234 · 2012-04-08 16:13:28

between the Scratch 2.0 build your own blocks stack blocks and using broadcast and receive? The whole new build your own block can already be replicated with broadcast and receive, so why are they implementing it? (2 questions, so hopefully 2 answers)

scimonster · 2012-04-08 16:18:18

Well, they do function pretty much the same. With 1S1S projects though, you can't do broadcast and receive. It also builds good programming practice, using functions.

TorbyFork234 · 2012-04-08 16:22:55

So the only actual difference is the number of scripts that would show up on the Scratch website?

TorbyFork234 · 2012-04-09 01:01:23

bump

scimonster · 2012-04-09 02:54:08

TorbyFork234 wrote:
So the only actual difference is the number of scripts that would show up on the Scratch website?

I think so. It's still a useful function, and especially if they implement recursion!

TorbyFork234 · 2012-04-09 13:10:39

scimonster wrote:
TorbyFork234 wrote:
So the only actual difference is the number of scripts that would show up on the Scratch website?
I think so. It's still a useful function, and especially if they implement recursion!

How is it useful if it can already be used with broadcast and receive?

scimonster · 2012-04-09 13:48:19

TorbyFork234 wrote:
scimonster wrote:
TorbyFork234 wrote:
So the only actual difference is the number of scripts that would show up on the Scratch website?
I think so. It's still a useful function, and especially if they implement recursion!
How is it useful if it can already be used with broadcast and receive?

Well, recursion can't be done with that. It also makes scripts more readable.

TorbyFork234 · 2012-04-09 13:57:04

scimonster wrote:
TorbyFork234 wrote:
scimonster wrote:
I think so. It's still a useful function, and especially if they implement recursion!
How is it useful if it can already be used with broadcast and receive?
Well, recursion can't be done with that. It also makes scripts more readable.

recursion can be done, like this. But of course, for it to be useful, you would have to have a more complicated script then the one shone.

when gf clicked
set [a v] to [0]
wait until <you're ready?>
broadcast [I made a block v]

when I receive [I made a block v]
change [a v] by [1]
set x to (a)
broadcast [I made a block v]

scimonster · 2012-04-09 14:08:49

TorbyFork234 wrote:
scimonster wrote:
TorbyFork234 wrote:

How is it useful if it can already be used with broadcast and receive?
Well, recursion can't be done with that. It also makes scripts more readable.
recursion can be done, like this. But of course, for it to be useful, you would have to have a more complicated script then the one shone.
when gf clicked
set [a v] to [0]
wait until <you're ready?>
broadcast [I made a block v]
when I receive [I made a block v]
change [a v] by [1]
set x to (a)
broadcast [I made a block v]

Ah, but that's only tail recursion. Try looking at the the wiki. wink Here's the direct link. BYOB has full recursion, as explained later on.

TorbyFork234 · 2012-04-09 14:11:04

Yes, but you could just make another broadcast with exactly the same thing for each time you want it to be used in the script.

scimonster · 2012-04-09 14:13:44

Can get complicated. hmm Did you see the tree example? Image for a depth of 25!

TorbyFork234 · 2012-04-09 14:17:49

But that was with the ability to add in numbers that you change the input of, I wouldn't be asking about the difference if there were input numbers you could put in like in BYOB.

scimonster · 2012-04-09 14:28:27

Well, there will be a space for input. smile

TorbyFork234 · 2012-04-09 14:33:11

scimonster wrote:
Well, there will be a space for input.

I thought it was only going to be stuff like this

when gf clicked
forever
if <key [space v] pressed?>
jump //where it's just a block, no inputs
end

When I receive [jump v] //really the trigger block that will contain the definition of "jump"
repeat (20)
change y by [1]
end
repeat (20)
change y by [-1]
end

No inputs allowed. Well, that just made my day!

scimonster · 2012-04-09 15:01:09

Well, I'm 95% sure. tongue

TorbyFork234 · 2012-04-09 15:03:02

scimonster wrote:
Well, I'm 95% sure.

Do you have a source saying it will have inputs?

LS97 · 2012-04-09 15:12:42

TorbyFork234 wrote:
scimonster wrote:
Well, I'm 95% sure.
Do you have a source saying it will have inputs?

Yeah!
here is an image of the custom blocks stuff, taken from this blog post by the Scratch Team big_smile

TorbyFork234 · 2012-04-09 15:14:44

Yay! Will there be multiple inputs though?

LS97 · 2012-04-09 15:43:33

TorbyFork234 wrote:
Yay! Will there be multiple inputs though?

I think so! I'm very inclined to think that it will work similarly to Squeak's blockspec definitions, where any number of %s will become string inputs, %n numbers, etc!

TorbyFork234 · 2012-04-09 15:44:54

Awesome! Reporting to be closed since it's answered.

Paddle2See · 2012-04-09 17:22:48

Closed by request of the topic owner

Scratch

archived forums

#1 2012-04-08 16:13:28

What is the difference...

#2 2012-04-08 16:18:18

Re: What is the difference...

#3 2012-04-08 16:22:55

Re: What is the difference...

#4 2012-04-09 01:01:23

Re: What is the difference...

#5 2012-04-09 02:54:08

Re: What is the difference...

TorbyFork234 wrote:

#6 2012-04-09 13:10:39

Re: What is the difference...

scimonster wrote:

TorbyFork234 wrote:

#7 2012-04-09 13:48:19

Re: What is the difference...

TorbyFork234 wrote:

scimonster wrote:

TorbyFork234 wrote:

#8 2012-04-09 13:57:04

Re: What is the difference...

scimonster wrote:

TorbyFork234 wrote:

scimonster wrote:

#9 2012-04-09 14:08:49

Re: What is the difference...

TorbyFork234 wrote:

scimonster wrote:

TorbyFork234 wrote:

#10 2012-04-09 14:11:04

Re: What is the difference...

#11 2012-04-09 14:13:44

Re: What is the difference...

#12 2012-04-09 14:17:49

Re: What is the difference...

#13 2012-04-09 14:28:27

Re: What is the difference...

#14 2012-04-09 14:33:11

Re: What is the difference...

scimonster wrote:

#15 2012-04-09 15:01:09

Re: What is the difference...

#16 2012-04-09 15:03:02

Re: What is the difference...

scimonster wrote:

#17 2012-04-09 15:12:42

Re: What is the difference...

TorbyFork234 wrote:

scimonster wrote:

#18 2012-04-09 15:14:44

Re: What is the difference...

#19 2012-04-09 15:43:33

Re: What is the difference...

TorbyFork234 wrote:

#20 2012-04-09 15:44:54

Re: What is the difference...

#21 2012-04-09 17:22:48

Re: What is the difference...

Board footer