HTML5 Game Development with ImpactJS

Book Preface

If you are new to programming, let me congratulate you for choosing one of the best ways to learn it.

Writing games can be way more fun and more rewarding than playing them. It will keep you on the edge of your seat when you first make something that you can move on the screen, when you first make something that resembles a game, when you first make something that is fun to play, and when you first put something out on the Internet for others to enjoy.

You will soon discover that programming is no black magic, but just a bunch of simple concepts glued together.

If you are new to JavaScript, the syntax can be quite confusing and some of its concepts may seem alien at first. But hidden under all that “wait, what?” moments is a language that is actually quite powerful, elegant, and concise. Stick to the simple stuff at the beginning, but don’t be too afraid to get your feet wet. If you come back to something you wrote a month ago, you will have discovered more explicit and easier ways to do it. This is true for every language, but the learning curve of JavaScript is an especially rewarding one.

If you are new to game development, you will see that it’s no more difficult than any other kind of development. Once you get the idea of a game loop in your head and understand how objects are moved over time, everything else will suddenly make sense.

One of the biggest revelations when I started to make games was how almost comically fast computers are. The amount of things you can do in 16 milliseconds, 60 times per second, is truly astonishing.

At the same time, it’s astonishing how easily you can end up doing huge amounts of operations. Compare 100 objects with each other? That’s 10,000 comparisons! Still, you can do such things and much more. So don’t be afraid to try things that you think may be too slow. Your game will most likely not be bound by computation performance.

If you are new to Impact and I would think you are, since you bought this book, you will find that it is just the aforementioned bunch of simple concepts, neatly arranged for you.