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Learning C# by Developing Games with Unity 3D Beginner's Guide

You're reading from   Learning C# by Developing Games with Unity 3D Beginner's Guide The beauty of this book is that it assumes absolutely no knowledge of coding at all. Starting from very first principles it will end up giving you an excellent grounding in the writing of C# code and scripts.

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Product type Paperback
Published in Sep 2013
Publisher Packt
ISBN-13 9781849696586
Length 292 pages
Edition 1st Edition
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Author (1):
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Terry Norton Terry Norton
Author Profile Icon Terry Norton
Terry Norton
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Table of Contents (16) Chapters Close

Preface 1. Discovering Your Hidden Scripting Skills FREE CHAPTER 2. Introducing the Building Blocks for Unity Scripts 3. Getting into the Details of Variables 4. Getting into the Details of Methods 5. Making Decisions in Code 6. Using Dot Syntax for Object Communication 7. Creating the Gameplay is Just a Part of the Game 8. Developing the State Machine 9. Start Building a Game and Get the Basic Structure Running 10. Moving Around, Collisions, and Keeping Score 11. Summarizing Your New Coding Skills A. Initial State Machine files B. Completed code files for Chapters 9 and 10 C. Pop Quiz Answers Index

Making decisions based on user input


Decisions always have to be made when the user provides input. In Chapter 2, Introducing the Building Blocks for Unity Scripts, we used an example where the user had to press the Return/Enter key to call the AddTwoNumbers() method:

if(Input.GetKeyUp(Keycode.Return))
AddTwoNumbers();

The if statement condition becomes true only when the Return key is released after being pressed down. Here's a partial screenshot of the GetKeyUp() method as shown in the Scripting Reference:

After the Return key is released, AddTwoNumbers() is executed.

Note

Notice that the code, AddTwoNumbers(), isn't between two curly braces. When there is only one line of code to execute for an if or an else, you have the option to not use the curly braces.

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