Writing the pendulum add-on

Using what we have learned so far, we can write an add-on that sets up a pendulum for the active object.

We will start with the steps from Chapter 3, and create a .py file for our add-on.

Setting the environment

Let’s create a folder for Chapter 9 in our PythonScriptingBlender project. In the Blender Preferences area, set the ch9 folder as the Scripts Folder property and restart the application. We can create our new files and folder in our IDE (VS Code in this book) so that we can start editing:

1. Select PythonScriptingBlender/ch9/addons in VS Code.
2. Create a new file by clicking the New File icon.
3. Name the new file pendulum.py.
4. Open the file by double-clicking it.

We can now add the standard elements of most add-ons:

• Add-on information
• The Operator class
• The menu function
• Registration functions

Next, we’ll learn how to write this information.

Writing the information

As usual...