jprad/s3coder repository overview

⁠QuickStart - Scratch 3.0 Extensions Development

⁠Purpose

Have fun pair programming with parents and children, using the Scratch 3.0 Extensions development environment based on the code-server.

⁠Requirements

• Windows 10
• Docker Desktop on Windows⁠ or Docker Desktop on Windows Home⁠

⁠Usage

⁠STEP 1 - Docker

On the command prompt, run the following commands.

cd c:\
mkdir scratch-ws
docker run --name s3coder -d -p 8080:8080 -p 8601:8601 -v C:/scratch-ws:/home/coder/s3/scratch-ws -e PASSWORD=password jprad/s3coder /home/coder/s3

⁠STEP 2 - Open the code-server

Click the following link to open the code-server. The authentication password is 'password'.

⁠STEP 3 - Start Scratch 3.0 GUI (scratch-gui)

Start scratch-gui with the following operation.

1. Click [Run (Ctrl + Shift + D)] icon.
2. Select 'Run Scratch 3.0 GUI' (default).
3. Click [Start Debuging] icon.
4. Select [TERMINAL] tab, waiting 'Compiled successfully'.

⁠STEP 4 - Coding on Scratch 3.0 GUI

The following link will open Scratch 3.0 GUI.

⁠How to control the docker

To stop and restart the docker container, use the following docker commands

Stop docker

docker stop s3coder

Start docker

docker start s3coder

⁠Development

You can develop the Scratch 3.0 Extensions on a web-based development environment. But create PNGs and other images using Windows applications. If you save the file in the c:\scratch-ws folder, you can load it to copy it to some folder on the code-server.

For specific instructions on how to develop the Scratch 3.0 Extensions, see the following links.

⁠Links

• The official documentation regarding extensions.⁠
• Scratch 3.0の拡張機能を作ってみよう⁠ (Japanese only)
• Scratch を改造しよう⁠ (Japanese only, JPY500.00)
• 子供の科学 2020 9月号, p.p.66-69, 第42回 ジャバスクリプトでスクラッチを拡張しよう⁠ (Magazine for Japanese kids, JPY770.00)