[v1.3-beta] sb3topy: Scratch to Python with Pygame

Agazila

ignore this, i found out

Agazila

ignore this, i found out

bloctans_4

anyone know where the scratch speech bubble images are stored?

alwayspaytaxes

bup

jumpy_candy

what

WojtekGame

bloctans_4 wrote:
anyone know where the scratch speech bubble images are stored?

they don't technically.

the scratch bubble is kinda generated by the VM, and it's similar to cowsay.

ajskateboarder

WojtekGame wrote:
bloctans_4 wrote:
anyone know where the scratch speech bubble images are stored?
they don't technically.

the scratch bubble is kinda generated by the VM, and it's similar to cowsay.

bloctans was talking about sb3topy, not Scratch's VM

It's rendered in this function, by the way

imfh

ajskateboarder wrote:
WojtekGame wrote:
bloctans_4 wrote:
anyone know where the scratch speech bubble images are stored?
they don't technically.

the scratch bubble is kinda generated by the VM, and it's similar to cowsay.
bloctans was talking about sb3topy, not Scratch's VM

It's rendered in this function, by the way

No, that function is used for drawing the FPS or other debug info. I haven’t actually implemented speech bubbles, it just prints out the text.

LukeSky47SCRATCH

skymover1239 wrote:
That is awesome!!

True

LukeSky47SCRATCH

and so much more don't work

Last edited by LukeSky47SCRATCH (Sept. 17, 2023 22:01:44)

imfh

LukeSky47SCRATCH wrote:
and so much more don't work

Yeah, those specific blocks don’t work. They print to the Python terminal instead.

-CelerySticks-

If you're looking for a different library to convert svg to png, you can use Wand-py. The code to convert is slightly more confusing, but it's still only 2 lines.

Edit: I don't see a way to install one of the wand-py dependencies on windows, you would have to look into that

Also, how hard is it to parse the scratch json file?

Last edited by -CelerySticks- (Dec. 2, 2023 02:02:53)

bloctans_4

-CelerySticks- wrote:
(#72)
If you're looking for a different library to convert svg to png, you can use Wand-py. The code to convert is slightly more confusing, but it's still only 2 lines.

Edit: I don't see a way to install one of the wand-py dependencies on windows, you would have to look into that

Also, how hard is it to parse the scratch json file?

i've already explained that pygame (iirc >2.0) supports display of svgs without any other libraries

-CelerySticks-

bloctans_4 wrote:
-CelerySticks- wrote:
(#72)
If you're looking for a different library to convert svg to png, you can use Wand-py. The code to convert is slightly more confusing, but it's still only 2 lines.

Edit: I don't see a way to install one of the wand-py dependencies on windows, you would have to look into that

Also, how hard is it to parse the scratch json file?
i've already explained that pygame (iirc >2.0) supports display of svgs without any other libraries

Ok, just looked it up, and pygame2 (and pygame-ce, for that matter, which I prefer) has direct svg support due to SDL2. The only thing is that we would still need a converter if this tool is using pygame 1.9.x, although in that case the creator should just upgrade it

rishi272011

I am running it in Replit. What does this error mean?

[INFO] Extracting project...
[INFO] Converting project assets...
[WARNING] Package cairosvg is not installed correctly.
[ERROR] SVG conversion is enabled but cairosvg does not appear to be installed. Consider configuring Inkscape under Asset settings in the GUI.
[WARNING] Costume conversion is disabled. Any SVGs in the project will not be visible.
[INFO] Overwriting engine files at '/home/runner/SolidCostlyTrees/output/engine'
[INFO] Compiling project into Python...
[INFO] Initializing parser...
[INFO] Running optimizations...
[INFO] Generating Python code...
[INFO] Saving converted project to '/home/runner/SolidCostlyTrees/output/project.py'
[INFO] Finished converting project. Saved in '/home/runner/SolidCostlyTrees/output'
[INFO] Running project...
pygame 2.5.0 (SDL 2.28.0, Python 3.10.11)
Hello from the pygame community. https://www.pygame.org/contribute.html
[CRITICAL] Unhandled exception during the conversion process:
Traceback (most recent call last):
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/main.py", line 110, in _run_worker
    run()
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/main.py", line 90, in run
    packer.run_project(manifest.output_dir)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/packer/packer.py", line 105, in run_project
    project.engine.start_program()
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/engine/runtime.py", line 207, in start_program
    runtime = Runtime(SPRITES)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/engine/runtime.py", line 39, in __init__
    pg.mixer.set_num_channels(config.AUDIO_CHANNELS)
pygame.error: mixer not initialized
CRITICAL:sb3topy.main:Unhandled exception during the conversion process:
Traceback (most recent call last):
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/main.py", line 110, in _run_worker
    run()
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/main.py", line 90, in run
    packer.run_project(manifest.output_dir)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/packer/packer.py", line 105, in run_project
    project.engine.start_program()
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/engine/runtime.py", line 207, in start_program
    runtime = Runtime(SPRITES)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/engine/runtime.py", line 39, in __init__
    pg.mixer.set_num_channels(config.AUDIO_CHANNELS)
pygame.error: mixer not initialized
Process Process-1:
Traceback (most recent call last):
  File "/nix/store/xf54733x4chbawkh1qvy9i1i4mlscy1c-python3-3.10.11/lib/python3.10/multiprocessing/process.py", line 314, in _bootstrap
    self.run()
  File "/nix/store/xf54733x4chbawkh1qvy9i1i4mlscy1c-python3-3.10.11/lib/python3.10/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/main.py", line 110, in _run_worker
    run()
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/main.py", line 90, in run
    packer.run_project(manifest.output_dir)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/sb3topy/packer/packer.py", line 105, in run_project
    project.engine.start_program()
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/engine/runtime.py", line 207, in start_program
    runtime = Runtime(SPRITES)
  File "/home/runner/SolidCostlyTrees/sb3topy-master/src/engine/runtime.py", line 39, in __init__
    pg.mixer.set_num_channels(config.AUDIO_CHANNELS)
pygame.error: mixer not initialized

Does replit support sound?

I think this is a problem with replit

Last edited by rishi272011 (Dec. 15, 2023 10:22:20)

cartword23

omg

julmik6478

After leopard - scratch to javascript we have Scratch to python.

Jeb444

(long unnecessary quote removed by moderator - please don't spam)

thats cool

Last edited by Paddle2See (Sept. 4, 2024 17:52:01)

MonkeyBean2

Very cool, I'd suggest trying to get pygame to render SVGs though. Maybe you could use some other python SVG renderer library and convert the SVGs to bitmaps and store them in-memory when you load all of the assets.

imfh

MonkeyBean2 wrote:
Very cool, I'd suggest trying to get pygame to render SVGs though. Maybe you could use some other python SVG renderer library and convert the SVGs to bitmaps and store them in-memory when you load all of the assets.

The latest release of the converter does support Pygame SVGs, but only as a fallback. Pygame SVGs aren't great, as Pygame essentially converts the SVG to a bitmap but with bad resolution. If there was an option to set the DPI, it would be a lot better.

The converter also supports CairoSVG or Inkscape to convert SVGs into bitmap PNG file. Both of these tools support custom DPI, which lets the bitmap image look sharper. I guess I could convert them at runtime, but that would be potentially laggy. The conversion is usually kind of slow and not good to do in realtime.

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