jvn11 wrote:

hey. I was thinking if I can help with leopard? I know JavaScript, Python, html, css, and scratch (obv).

• Making a sprite that opens a website in a new tab when clicked
  
• Using JavaScript alert(), prompt(), and confirm() boxes
  
• Changing other things on the webpage, like the page's background color, or adding new HTML elements
  

PullJosh wrote:

Here's an example of what I'm talking about, jvn11: https://codesandbox.io/s/stoic-golick-i6st4h?file=/Sprite1/Sprite1.js

When you click the Scratch cat, it opens the Scratch website in a new tab. Not possible in a regular Scratch project!

Everyone reading this, please create more example projects like this one! I want to see all your ideas.

jvn11 wrote:

so something like a scratch extension? the problem is that I don’t know how to actually make one
but what I can do is to probably make this into an npm module (if you haven’t already published one yet)

when [timer v] > (10)
when [loudness v] > (10)
(loudness)
<touching [edge v] ?>

NoodlesAdun wrote:

Hello, I was trying to convert a project using leopard but it keeps giving the error message “Cannot read properties of undefined (reading ‘0’)”.
I'm not using any unsupported blocks or extensions, so does anyone know where I've gone wrong?
the project url is: https://scratch.mit.edu/projects/714577157

{
  "isStage": false,
  "name": "editor",
  "variables": {
    "W_1Y0o*^b}}4=Y+cjm2g": ["tileGridX", 8],
    "Vjh+7?#YS@#6q-B-/@%T": ["tileGridY", 8],
    "rYY+5aWXjq/pBK8^Gt}w": ["tileIndex", 169],
    "}h`kH)KZh-HrN9g!t-Ny": ["tile", "2"],
    "0?:.QV{uMFG;@i]L!h1n": ["brush", "0"],
    "7De62Pt(pTCegwvxFOvY": ["brush1", 1],
    "dx(wx8v7)/y!iWIhW1CH": ["brush2", 1],
    "]LIbaT9ymB}x1antS-|d": ["brush3", 10],
    "NkJRP6FQdQ3YU#Aei/=r": ["tileGridX", 0],
    "(_.u_-_ZB09^R`v2~*.K": ["tileGridY", 0],
    "aGQ*p%}CAQLiF45ZB6n~": ["tileIndex", 0],
    "1{y0BG5T,ZjEF4{Kgl#t": ["tile", 0],
    "@pi?X+CgpM=SZ[B4~`}q": ["brush4", 3],
    "^VrYP)X.I;MP}r6D2FYe": ["brush5", 0],
    "_qt3@[rs*m=(`ZfC-T#|": ["brush6", 9],
    "OU,k{M/7-Q4|=+kuC3SY": ["brush#", "2"],
    "t1cz`Jspd|;lIPxKu(vK": ["brush7", 0]
  },
  // etc...
}

PullJosh_Test wrote:

NoodlesAdun wrote:

Hello, I was trying to convert a project using leopard but it keeps giving the error message “Cannot read properties of undefined (reading ‘0’)”.
I'm not using any unsupported blocks or extensions, so does anyone know where I've gone wrong?
the project url is: https://scratch.mit.edu/projects/714577157

Great question! I did some digging and found that there are two separate issues that both cause this error.

Problem 1: The first is that you have a variable and a list with matching names. This is something Leopard should know how to handle, but it currently doesn't. That's our fault, and it should work, but in the meantime you can always rename your lists to make them not match the variables, and that will solve this issue.

Problem 2: The second problem is a little weirder. It seems like in the “editor” sprite, the variables tileGridX, tileGridY, tileIndex, and tile are each defined twice. This isn't visible at all in the Scratch editor, but you can see it when you open up the JSON code under the hood. I have no idea how this happened–I don't think it's supposed to be possible.

Here's an excerpt from your project's underlying JSON code so that you can see what I mean:

{
  "isStage": false,
  "name": "editor",
  "variables": {
    "W_1Y0o*^b}}4=Y+cjm2g": ["tileGridX", 8],
    "Vjh+7?#YS@#6q-B-/@%T": ["tileGridY", 8],
    "rYY+5aWXjq/pBK8^Gt}w": ["tileIndex", 169],
    "}h`kH)KZh-HrN9g!t-Ny": ["tile", "2"],
    "0?:.QV{uMFG;@i]L!h1n": ["brush", "0"],
    "7De62Pt(pTCegwvxFOvY": ["brush1", 1],
    "dx(wx8v7)/y!iWIhW1CH": ["brush2", 1],
    "]LIbaT9ymB}x1antS-|d": ["brush3", 10],
    "NkJRP6FQdQ3YU#Aei/=r": ["tileGridX", 0],
    "(_.u_-_ZB09^R`v2~*.K": ["tileGridY", 0],
    "aGQ*p%}CAQLiF45ZB6n~": ["tileIndex", 0],
    "1{y0BG5T,ZjEF4{Kgl#t": ["tile", 0],
    "@pi?X+CgpM=SZ[B4~`}q": ["brush4", 3],
    "^VrYP)X.I;MP}r6D2FYe": ["brush5", 0],
    "_qt3@[rs*m=(`ZfC-T#|": ["brush6", 9],
    "OU,k{M/7-Q4|=+kuC3SY": ["brush#", "2"],
    "t1cz`Jspd|;lIPxKu(vK": ["brush7", 0]
  },
  // etc...
}

Under the hood, variables are given ids that are basically just strings of garbage (in green above). What's weird is that there are two variables called tileGridX, two variables called tileGridY, and so on. (But there is just one of each “brush” variable as expected.) This obviously makes Leopard very confused, and causes the error. Fixing this one seems harder because I don't know how it even happened in the first place.

NoodlesAdun wrote:

It's possible that when I was editing the project with turbowarp it somehow duplicated the variables, I'll try remaking the sprite and renaming the lists and hopefully it will work then. Thanks for the help!

cdawgscratch wrote:

leapord is so cool but its very laggy on my device for some reason, do you think there might be something causing that?

Leopard translator error wrote:

Argument sandboxId for data.sandboxId is missing.

A-MARIO-PLAYER wrote:

I'm not sure why nobody has posted this. My project keeps failing with:

Leopard translator error wrote:

Argument sandboxId for data.sandboxId is missing.