Book Image

Learning C# by Developing Games with Unity 5.x - Second Edition

Book Image

Learning C# by Developing Games with Unity 5.x - Second Edition

Overview of this book

Unity is a cross-platform game engine that is used to develop 2D and 3D video games. Unity 5 is the latest version, released in March 2015, and adds a real-time global illumination to the games, and its powerful new features help to improve a game’s efficiency. This book will get you started with programming behaviors in C# so you can create 2D games in Unity. You will begin by installing Unity and learning about its features, followed by creating a C# script. We will then deal with topics such as unity scripting for you to understand how codes work so you can create and use C# variables and methods. Moving forward, you will find out how to create, store, and retrieve data from collection of objects. You will also develop an understanding of loops and their use, and you’ll perform object-oriented programming. This will help you to turn your idea into a ready-to-code project and set up a Unity project for production. Finally, you will discover how to create the GameManager class to manage the game play loop, generate game levels, and develop a simple UI for the game. By the end of this book, you will have mastered the art of applying C# in Unity.
Table of Contents (20 chapters)
Learning C# by Developing Games with Unity 5.x Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Making decisions in code


The fundamental mechanism of programming is making decisions. In everyday life, we make hundreds—and possibly thousands—of decisions a day. They might be the results of simple questions such as, "Do I need an umbrella today?" or "Should I drive at the maximum motorway speed at the moment?" Let's first take a question and draw a single graph, as follows:

This is a fairly easy question. If it will be raining, I need an umbrella; otherwise, I don't. In programming, we call it an if statement. It's a way we describe to the computer what code should be executed under what conditions. The question "Will it be raining?" is the condition. When planning your code, you should always break down decision-making in to simple questions that can be answered only by a "yes" or a "no."

Note

In C# syntax, we use true or false instead of yes/no.

We now know how the simplest if statements work. Let's see how this question will look in code. Let's create a new script, name it LearningStatements...