Book Image

Learning Unity 2D Game Development by Example

By : Venita Pereira
Book Image

Learning Unity 2D Game Development by Example

By: Venita Pereira

Overview of this book

<p>If you are looking for a guide to create 2D games using Unity, look no further. With this book, you will learn all the essentials of 2D game development by creating five real-world games in a step-by-step manner throughout the course of this book.</p> <p>Starting with a blank scene, you will learn all about the new Unity 2D toolset, which will enable you to bring your scene to life. You will create characters, make them move, create some enemies, and then write code to destroy them. After figuring out all the necessities of creating a game, this book will then assist you in making several different games: games with collision, parallax scrolling, Box2D, and more.</p> <p>By the end of this book, you will not only have created several small games, but you will also have the opportunity to put all your new-found knowledge into creating and deploying a larger, full game.</p>
Table of Contents (17 chapters)
Learning Unity 2D Game Development by Example
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Code fundamentals


In order to create our own code, we need to understand the foundations of programming so that we can build upon it.

Code is made up of the following main components:

  • Variables

  • Data types

  • Operators (also known as expressions)

  • Functions (also known as methods)

  • Comments

  • Library import variables

When programming, we make use of variables to store both known and unknown information in the form of values and identifiers in named locations in memory.

For instance, we could store the name of the main character in our game in a variable, as shown in the following line of code:

Name = Hercules

Name is the variable's identifier, and Hercules is the stored value assigned to the variable Name.

Data types

Variables are used in programming to store different types of data. Setting the variable type is known as Typing. The reason to use types and type checking is that expressions involving incompatible types can be detected right away rather than becoming hidden bugs (errors in code). For instance...