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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

Time for action – create a couple of if statements


The if statements work by determining whether a condition inside a pair of parentheses is true or false.

  1. Modify LearningScript as shown in the next screenshot.

  2. Save the file.

  3. In Unity, click on Play.

What just happened?

Here's the output in the Unity Console:

Code analysis:

  • The code on line 8 is as follows:

    bool theBearMadeBigPottyInTheWoods = true;

    This Boolean variable is declared and assigned the value of true.

  • The code on line 10 and its description:

    if( theBearMadeBigPottyInTheWoods)

    An if statement to test if the condition between the parenthesis is true or false.

    The variable theBearMadeBigPottyInTheWoods is storing a value true, therefore.The code block on lines 11 to 13 is executed, as shown in the Console screenshot.

Using the NOT operator to change the condition

Here's a little curveball to wrap your mind around, the NOT logical operator. It's written in code using an exclamation mark. This makes a true condition false, or a false condition...

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