dude341 wrote:

Could a similar thing be done with the 1.x Java Player and the 1.4 Squeak Editor? I think there was an online 1.4 Squeak editor someone made with a JavaScript Squeak VM but it was literally just 1.4. It didn't have the changes this had, like being able to launch projects via a project ID dialog box (that is, if the 3.0 launch didn't wipe out the original .sb files, as they got rid of the option to download a .sb file for older projects). I don't think you could download a project to your computer or upload a project from your computer either.

As for the 1.x Java Player, I don't think there has been any attempt at that.

_nix wrote:

dude341 wrote:

Could a similar thing be done with the 1.x Java Player and the 1.4 Squeak Editor? I think there was an online 1.4 Squeak editor someone made with a JavaScript Squeak VM but it was literally just 1.4. It didn't have the changes this had, like being able to launch projects via a project ID dialog box (that is, if the 3.0 launch didn't wipe out the original .sb files, as they got rid of the option to download a .sb file for older projects). I don't think you could download a project to your computer or upload a project from your computer either.

As for the 1.x Java Player, I don't think there has been any attempt at that.

Funnily enough, hacking the 1.x Java Player would probably be the easiest option, since it was already built to open a file from the Scratch site. But then you wouldn't get the editor, of course. (I guess Squeak 1.4 is to Java 1.4 as Flash 2.0 is to Phosphorus.) You could probably hack the Squeak editor to automatically load a file that is loaded in by the VM, though (which could be fetched from the Scratch site). Or if the Squeak VM has networking support, you could make a plain old mod of 1.4 that downloads projects from the website, and upload that directly into the Squeak VM, without any extra external JavaScript like I use for s2online.

dude341 wrote:

_nix wrote:

dude341 wrote:

Could a similar thing be done with the 1.x Java Player and the 1.4 Squeak Editor? I think there was an online 1.4 Squeak editor someone made with a JavaScript Squeak VM but it was literally just 1.4. It didn't have the changes this had, like being able to launch projects via a project ID dialog box (that is, if the 3.0 launch didn't wipe out the original .sb files, as they got rid of the option to download a .sb file for older projects). I don't think you could download a project to your computer or upload a project from your computer either.

As for the 1.x Java Player, I don't think there has been any attempt at that.

Funnily enough, hacking the 1.x Java Player would probably be the easiest option, since it was already built to open a file from the Scratch site. But then you wouldn't get the editor, of course. (I guess Squeak 1.4 is to Java 1.4 as Flash 2.0 is to Phosphorus.) You could probably hack the Squeak editor to automatically load a file that is loaded in by the VM, though (which could be fetched from the Scratch site). Or if the Squeak VM has networking support, you could make a plain old mod of 1.4 that downloads projects from the website, and upload that directly into the Squeak VM, without any extra external JavaScript like I use for s2online.

That's what I was thinking of (squeak VM with networking) for the Squeak 1.4 online thing. Wonder if anyone has had a try at doing that yet.

dude341 wrote:

Bump. I noticed this doesn't support 1.x projects, perhaps add this as an update? I'm not sure if it's even possible for all 1.x projects though because Scratch changed everything about how the API for downloading old projects work and stuff.

_nix wrote:

dude341 wrote:

Bump. I noticed this doesn't support 1.x projects, perhaps add this as an update? I'm not sure if it's even possible for all 1.x projects though because Scratch changed everything about how the API for downloading old projects work and stuff.

Oh, good idea! It's actually pretty easy to load sb1 projects, especially since the Scratch 2.0 editor already has built-in support for decoding them. I just need to download the asset and recognize it as a 1.x file (via the content-type header), which can be directly loaded into the 2.0 editor using the same function I have for importing sb2 zip files. Hence - I did that! Try it out! (You might need to reset your cache so it loads the up-to-date JS.)

dude341 wrote:

Now it works!… or does it? Every 1.x project seems to load except for this one, which also fails to load in Scratch 3.0. Did it get corrupted during the 3.0 upgrade process or is it just a coincidence that it won't load in both s2online and Scratch 3.0? Could you check it out?

<offtopic>Are we still on 3.0? According to thisandagain Scratch 3/.x would be changing the minor version as well like 1.x and they said 3.1 would come out during the weeks after the release of 3.0. Scratch 3.0/.x doesn't include an about page (although it will be added) so there isn't a way to check.</offtopic>

_nix wrote:

dude341 wrote:

Now it works!… or does it? Every 1.x project seems to load except for this one, which also fails to load in Scratch 3.0. Did it get corrupted during the 3.0 upgrade process or is it just a coincidence that it won't load in both s2online and Scratch 3.0? Could you check it out?

<offtopic>Are we still on 3.0? According to thisandagain Scratch 3/.x would be changing the minor version as well like 1.x and they said 3.1 would come out during the weeks after the release of 3.0. Scratch 3.0/.x doesn't include an about page (although it will be added) so there isn't a way to check.</offtopic>

Hmm… Yeah, it looks like that file was damaged, unfortunately. When I download it and open it in Scratch 1.4, it shows an error message: “Could not read project; file may be damaged: (bad header)”.

<offtopic>Yeah, I saw the comment where he mentioned that… they haven't said anything more about it though, I think. I'm pretty sure there's nowhere in the code where those semantic versions are actually stored (let alone displayed). Plus, I don't think Scratch 3 uses “patch” versions – the “y” in 3.x.y. Most of the recent changes would be patch changes, I think. But maybe not all of them, so, I'm not sure what the plan is. I guess our best bet is to..ask thisandagain to plz explain in further detail! :P (When he's back on Monday anyway. Or via an issue in LLK/scratch-gui. :P)</offtopic>

_nix wrote:

Hmm… Yeah, it looks like that file was damaged, unfortunately. When I download it and open it in Scratch 1.4, it shows an error message: “Could not read project; file may be damaged: (bad header)”.

Jonathan50 wrote:

_nix wrote:

Hmm… Yeah, it looks like that file was damaged, unfortunately. When I download it and open it in Scratch 1.4, it shows an error message: “Could not read project; file may be damaged: (bad header)”.

It's a Scratch 2.0 project.json.

{
  text: "Hello!
I like!
Multiline text!"}

_nix wrote:

Jonathan50 wrote:

_nix wrote:

Hmm… Yeah, it looks like that file was damaged, unfortunately. When I download it and open it in Scratch 1.4, it shows an error message: “Could not read project; file may be damaged: (bad header)”.

It's a Scratch 2.0 project.json.

Oh, wonky, you're right. Yet it's served from the Scratch servers as a .sb file (application/octet-stream).

It's invalid JSON, though – I think it was made in an old version of the editor. So the multiline text is stored in the JSON as something like this:

{
  text: "Hello!
I like!
Multiline text!"}

Hence, I can't even load it into s2online – because I can't parse the JSON in order to download the assets!

I could probably copy over Scratch 2.0's JSON parsing code though (which I imagine can handle this).

dude341 wrote:

The json parsing code from 2.0 should handle this, as the project worked during 2.0.

_nix wrote:

dude341 wrote:

The json parsing code from 2.0 should handle this, as the project worked during 2.0.

Yes, exactly! I ported over the code and it opens now https://s2online.github.io/#10006824

dude341 wrote:

It seems to work now, other than the fact that the “1.0 text” doesn't load. This seems to happen with all projects that were made in 1.x and then were updated to 2.0 without changing the text. 2.0 rendered the fonts but this doesn't. Hmm… I wonder what causes that?

_nix wrote:

dude341 wrote:

It seems to work now, other than the fact that the “1.0 text” doesn't load. This seems to happen with all projects that were made in 1.x and then were updated to 2.0 without changing the text. 2.0 rendered the fonts but this doesn't. Hmm… I wonder what causes that?

Oh, right – this is actually an issue I brought up in Scratch 3.0. (They fixed it in 3.0, yay!) Basically, the text part of 1.x costumes is stored in a separate bitmap file in sb2s, so their asset needs to be fetched separately. Scratch 2.0 was capable of dealing with this and displaying them separately, in a pseudo-editable way (details here). In Scratch 3.0, they're flattened into a single bitmap image.

I'll see if I can load the textLayerMD5 images into the .zip – that isn't implemented in MegaApuTurkUltra's project backup tool, and I haven't messed with his code too much, but hopefully it'll be doable.

dude341 wrote:

_nix wrote:

(details here). In Scratch 3.0, they're flattened into a single bitmap image.

I'll see if I can load the textLayerMD5 images into the .zip – that isn't implemented in MegaApuTurkUltra's project backup tool, and I haven't messed with his code too much, but hopefully it'll be doable.

That's a good explanation of the special “1.0 text mode” thing you have on that bug fix request! I always wondered how that actually worked.

_nix wrote:

..Wait a sec, I can just upload a 1.4 project into s2online and then download it and see what the format is like that..duh..

_nix wrote:

dude341 wrote:

_nix wrote:

(details here). In Scratch 3.0, they're flattened into a single bitmap image.

I'll see if I can load the textLayerMD5 images into the .zip – that isn't implemented in MegaApuTurkUltra's project backup tool, and I haven't messed with his code too much, but hopefully it'll be doable.

That's a good explanation of the special “1.0 text mode” thing you have on that bug fix request! I always wondered how that actually worked.

Thanks! I'm..actually having a bit more trouble with this than I expected. The textLayerID for every costume is -1, for some reason (even in another .sb1-turned-.sb2 project I saw), so I don't think that's what I'm supposed to be setting it to. I'd like to look at an sb2 of a project that contains 1.4 text, so I can see how an actual project downloaded from the real Scratch 2.0 editor works, but I don't have any on my computer.

..Wait a sec, I can just upload a 1.4 project into s2online and then download it and see what the format is like that..duh..