You might remember me as the author of Joy of Elixir: https://forum.elixirforum.com/t/joy-of-elixir-self-published-free/

I’ve got a new book out which shows you how to do the Toy Robot exercise in Elixir:

The first 6 chapters of the book cover how to solve the common part of the exercise. Chapter 7 (coming soon) covers processes and supervision trees while building the foundations of a multiplayer Toy Robot game. Chapter 8 will finish that game.

I view this book as a “sequel” to things like Joy of Elixir, the getting started docs for Elixir or Elixir School. It’s a real (enough) project with real problems and I hope people enjoy reading it and following along.

Let me know what you think in this thread!

Table of Contents

• Introduction
• Introducing the Toy Robot
  • Simplifying the problem
  • Creating the application
  • The MOVE command
  • Moving west
  • Moving north and south
  • Moving in the right direction
  • Turn left!
  • Turn right!
• Catching bugs
  • Finding the bugs within
  • Regression testing the turn_right function
  • Regression testing the move function
  • Regression testing the move_west function
  • Regression testing the move_north and move_south functions
  • Jumping back to the manual test
  • Reflections
• Placing the robot on a table
  • The Table module
  • The missing link
• Building our simulation
  • Moving a robot, within a simulation
  • Turning a robot, within a simulation
  • Reporting the robot’s position
• Reading and handling commands
  • The Command Processor
  • The Command Handler
  • The Command Runner
  • Piecing it all together
• Building the CLI
  • Reading commands from a file
  • Verifying the robot’s behaviour
  • Conclusion
• The Toy Robot Game
• Building a game
  • A single player game
  • Let it crash!
  • The Game Server