Configuring a Logo (Turtle) Problem
Turtle problems allow students to use the Python Turtle API to make programs that draw vector graphics.
Basic Configuration Details
These problems are configured with Language: Logo.
Marking a Logo problem requires using the
Python 3 Logo driver, with the
Logo Diff checker.
Beta: It is now possible to use the
Python 3 Function driver with the
Logo Diff checker. Care must be taken to configure the failure message template for this combination of driver / checker. Please ask us for assistance if you'd like to mark questions with this configuration.
You can include turtle commands in a special initial workspace file --
___turtle.py -- in order to set up the turtle world (if needed). These commands will be executed before any commands in
program.blockly) and will be saved (on a Terminal run) in the
logo-animation data used in an inline snippet.
___turtle.py workspace file needs to have the following File Settings to function correctly:
If using an inline snippet, it must have the following parameters:
Supported API Features
The following commands from the Turtle API are supported:
- Movement commands:
- Set position and heading:
- Shorthand drawing commands:
- World configuration:
- State information:
- Pen configuration:
- Turtle Appearance:
Author-only API Features (custom API)
Grok has added new API hooks to allow an author to use features that are not in the Python Turtle AP.
bgurl(image_url) -- Set the background to an image loaded via an asset URL. The background image should be 400 x 300 in size, to match the shape of the Turtle display window. Images that are smaller than this size will tile across the background. Use this api hook inside a
___turtle.py workspace file.