Book Image

Raspberry Pi for Python Programmers Cookbook - Second Edition

Book Image

Raspberry Pi for Python Programmers Cookbook - Second Edition

Overview of this book

Raspberry Pi cookbook for Python Programmers is a practical guide for getting the most out of this little computer. This book begins by guiding you through setting up the Raspberry Pi, performing tasks using Python 3 and introduces the first steps to interface with electronics. As you work through each chapter you will build up your skills and knowledge and apply them as you progress throughout the book, delving further and further into the unique abilities and features of the Raspberry Pi. Later, you will learn how to automate tasks by accessing files, build applications using the popular Tkinter library and create games by controlling graphics on screen. You will harness the power of the built-in graphics processor by using Pi3D to generate your own high quality 3D graphics and environments. Connect directly to the Raspberry Pi’s hardware pins to control electronics from switching on LEDs and responding to push buttons right through to driving motors and servos. Learn how to monitor sensors to gather real life data and to use it to control other devices, and view the results over the Internet. Apply what you have learnt by creating your own Pi-Rover or Pi-Hexipod robots. Finally, we will explore using many of the purpose built add-ons available for the Raspberry Pi, as well as interfacing with common household devices in new ways.
Table of Contents (18 chapters)
Raspberry Pi for Python Programmers Cookbook - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Hardware and Software List
Index

Building 3D maps and mazes


We've seen that the Pi3D library can be used to create lots of interesting objects and environments. Using some of the more complex classes (or by constructing our own), whole custom spaces can be designed for the user to explore.

In the following example, we use a special module called Building, which has been designed to allow you to construct a whole building using a single image file to provide the layout:

Explore the maze and find the sphere that marks the exit

Getting ready

You will need to ensure that you have the following files in the pi3d/textures directory:

  • squareblocksred.png

  • floor.png

  • inside_map0.png, inside_map1.png, inside_map2.png

These files are available as part of the book's resources placed in Chapter05\resource\source_files\textures.

How to do it…

Let's run the following 3dMaze.py script by performing the following steps:

  1. First, we set up the keyboard, mouse, display, and settings for the model using the following code:

    #!/usr/bin/python3
    """Small...