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The success of Angry Birds, Peggle, and Fruit Ninja has proven that fun and immersive game experiences can be created in two dimensions. Furthermore, 2D graphics enable developers to quickly prototype ideas and mechanics using fewer resources than 3D.

2D Graphics Programming for Games provides an in-depth single source on creating 2D graphics that can be easily applied to many game platforms, including iOS, Android, Xbox 360, and the PlayStation Suite. The author presents examples not only from video games but also from art and animated film.

The book helps new programmers learn the concepts and techniques used to produce appealing 2D graphics. It starts with the basics and then covers topics pertaining to motion and depth, such as cel animation, tiling, and layering. The text also describes advanced graphics, including the use of particle systems, shaders, and splines. Code samples in the text and online allow readers to see a particular line of code in action or as it relates to the code around it. In addition, challenges and suggested projects encourage readers to work through problems, experiment with solutions, and tinker with code.

Full of practical tools and tricks, this color book gives novices in-depth guidance on making professional, high-quality graphics for games. It also improves the relationship between programmers and artists by explaining how certain art and design challenges can be solved with a programmatic solution.



I Getting Started in 2D

Introduction

About This Book

Why C# and XNA?

Game Development 101

Game Developer Platforms

Book Organization

Basics of Computer Graphics

Bits and Bytes

Display

Double Buffering

Graphic File Formats

Sprites!

What Is a Sprite?

Layering with Depth

The Sprite Sheet and the GPU

Scaling Sprites

II Motion and Depth

Animation

Historical Animation

Cel Animation

A Few Principles of Animation

Animation Cycles

Camera and Tiling

A Simple Camera

Simple Camera Zoom

Tiling

Isometric Tiled Graphics

The Illusion of Depth

A Historical Perspective on Perspective

Layering

The Six Principles of Depth

The 6 Principles in Code

Traditional Perspective

Summary

User Interface

UI Types

Fonts

Localization

Safe Frames

Menus

III Advanced Graphics

Particle Systems

What's a Particle?

Creating Effects

Blending Types

Types of Effects

An Effects System

Optimization

GPU Programming

Pixel Modification

Full Screen Pixel Modifications

What Is a Shader

Shader Languages

Pixel Shader Examples

Polish, Polish, Polish!

Transitions

Sinusoidal Movement

Splines

Working with Your Artist

A Conclusion

IV Appendices

Math Review: Geometry

Geometry Primer

Math Review: Vectors

Vectors and Notation

Vector Comparison

Length, Addition, and Subtraction

Unit Vectors and Normalizing a Vector

Standard Unit Vectors and Polar Representation

Math Review: Trigonometry

Triangle Trig

Unit-Circle Trig

Trig as a Collection of Periodic Functions

Translations and Transforms of Trig Functions

Circles and Ellipses

The Tangent Function

Bibliography

Glossary

Index