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bensimmo
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Joined: Sun Dec 28, 2014 3:02 pm
Location: East Yorkshire

Scratch 3

Sun Jan 28, 2018 11:09 am

Has anyone else had a look at Scratch 3.
It's in preview and seems to be ok on the PC.

It doesn't work on a mobile size device (GUI is just a mess) for me.

Tried it on the Pi and things don't look good so far.
Layout is fine, but it brings it to a crawl and gives up before you even do anything.

(This is a new Stretch image, up to date).

Hopefully they get it working, but given it been in development for a long time, I thought it maybe work a bit better

preview.scratch.mit.edu

Perhaps it just too demanding for a Pi3.:-(

mikerr
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Joined: Thu Jan 12, 2012 12:46 pm
Location: UK
Contact: Website

Re: Scratch 3

Sun Jan 28, 2018 12:07 pm

Tried it on a PI3 (stretch, updated) in chromium and the CPU is pegged at 97% even while just idle /dragging blocks.

Sluggish, but usable for making a test script.

Big problem is the stage doesn't show - but the script is running as I can see the sprite x/y values changing.

Pi3 under firefox-esr the stage does show and it all works but seems prone to freezing when dragging blocks

Still, it is only a preview.

https://preview.scratch.mit.edu
Android app - Raspi Card Imager - download and image SD cards - No PC required !

BooleanG
Posts: 2
Joined: Fri May 20, 2016 1:41 am

Re: Scratch 3

Wed Apr 18, 2018 2:50 pm

Does anyone know if there are plans to port the offline version to the PI? We use Pi's in classrooms without the internet for a variety of reason (security and availability included). We do a number of Scratch GPIO projects so this is of great interest.

hippy
Posts: 3371
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Scratch 3

Wed Apr 18, 2018 4:31 pm

BooleanG wrote:
Wed Apr 18, 2018 2:50 pm
Does anyone know if there are plans to port the offline version to the PI?
I don't think they have said much except an off-line editor is planned. Whether it gets ported to a Pi I would presume rests on how the non-Pi version is implemented. Given Scratch 3 seems to be Javascript plus HTML5, if it runs on-line on a PI, I cannot imagine off-line could not be ported to a Pi.

It may be worth asking MIT what their plans are as they would probably know more than anyone here -

https://scratch.mit.edu/discuss/topic/291695

Added: 10th April 2018, "We haven't started on the offline editor yet"

fruitoftheloom
Posts: 16937
Joined: Tue Mar 25, 2014 12:40 pm

Re: Scratch 3

Sat Aug 18, 2018 5:44 am

August 2018 update:


https://coderdojo.com/2018/08/02/what-y ... ratch-3-0/

https://scratch.mit.edu/3faq

Scratch 3.0 is built on industry-standard HTML5 technology and is no longer dependent on Flash. Because of this, it runs in any modern web browser.
Adieu

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bensimmo
Posts: 2992
Joined: Sun Dec 28, 2014 3:02 pm
Location: East Yorkshire

Re: Scratch 3

Sat Aug 18, 2018 7:11 am

Thanks for the update, I missed that.
Must give it a go again.

hippy
Posts: 3371
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Scratch 3

Sat Aug 18, 2018 8:37 am

Yay! I finally got to see what the over-temperature warning looks like on my 3B :o

CPU usage was around 78-86% when idling for me which is less than what mikerr reported earlier, and it feels a little less sluggish than what I recall. That compares with 0% when idling and 20%-30% when dragging blocks in the Pi's Scratch 2 off-line editor.

Not sure if one is meant to be able to run programs in the on-line version but clicking on the green flag did not seem to work for me.

I'm not convinced a complete switch to Scratch 3 on the 2nd of January 2019 for the on-line editor is the right move. Not having details for Extensions yet, with details of how to create and deploy Unofficial Extensions only arriving "later in 2019", is going to prove problematic for some people, users and developers.

It is still not clear what off-line editors will be available beyond, "In the second half of 2019 we’ll also release an offline version of Scratch for Chromebooks".

I note micro:bit and Lego Mindstorms EV3 are included as official extensions, and Lego WeDo 2.0 is "coming soon", but no mention of Raspberry Pi.

Does anyone know what the plans are or the roadmap is for Scratch on a Pi ?

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