Making Games
Making Games
Making Games

Last updated on 2015-09-14

About the Book

I’m a gamer. I’ve been a gamer since before I was a programmer. And yet I’ve never tried to build a game…until now. A few weeks ago, a coworker sketched a simple, beautiful platform game. The moment I saw it, I knew I wanted to build it.

Knowing where to begin is always hard. Many books and tutorials about making games are often written in Java, C++ or some other language you haven’t learned yet. So the complexity of making games is increased with the need to learn new languages.

Instead I’m going to use modern JavaScript to make games for web browsers. They’re effortless to use and they work everywhere. If you’ve ever wanted to make a game, join me. We’ll start with nothing and build fun games, in no time at all.

About the Author

Christopher Pitt
Christopher Pitt

I am a developer and writer, working at Over.

Table of Contents

  • Introduction
  • The Game Loop
    • Setting the stage for our game
    • Creating sprites
    • The Game Loop
  • Player Input
    • Making modules
    • Detecting input
    • Natural player movement
  • Collision Detection
    • Creating boxes
    • Detecting circle collisions
    • Detecting rectangle collisions
  • Gravity
    • Cleaning up our existing code
    • Adding gravity to the world
    • Allowing players to jump
  • Ladders
    • Creating our first ladder
    • Allowing players to climb ladders
    • Allowing players to stand on ladders
  • Stairs
  • Camera Locking
  • Projectiles
  • Mobs
  • Health
  • Checkpoints
  • Inventory
  • Maps

The Leanpub 45-day 100% Happiness Guarantee

Within 45 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

See full terms

Free Updates. Free App. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets), MOBI (for Kindle) and in the free Leanpub App (for Mac, Windows, iOS and Android). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

Authors, publishers and universities use Leanpub to publish amazing in-progress and completed books and courses, just like this one. You can use Leanpub to write, publish and sell your book or course as well! Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks. Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. It really is that easy.

Learn more about writing on Leanpub