دانلود کتاب Building Games with DragonRuby: A comprehensive guide to shipping cross-platform games with ease

A free, online book on how to make games with Ruby using DragonRuby Game Toolkit by Brett Chalupa and the DragonRuby community.
Above is the final version of the game you'll be building—a simple shoot 'em up where you pilot a dragon and spit fire at the targets. The book walks through step-by-step on how to code every single aspect of the game.
Here are some kind things people have said about the book:
Reading Building Games with DragonRuby book was a breath of fresh air to me.

This is nuts! Great work with the book.

Thanks for the book, I really enjoyed the writing style!

Topics Covered

The fundamentals of game programming
Handling input from keyboard and gamepad
Rendering sprites & animating them
Saving and loading high-score data
Playing sound effects and music
Coding menus and different game scenes
Refactoring the code to make it easier to maintain

Read the Book!
It's still a work in progress and approaching the finished version.