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Unity 4.x Game Development by Example: Beginner's Guide

You're reading from   Unity 4.x Game Development by Example: Beginner's Guide A seat-of-your-pants manual for building fun, groovy little games quickly with Unity 4.x

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Product type Paperback
Published in Dec 2013
Publisher Packt
ISBN-13 9781849695268
Length 572 pages
Edition 3rd Edition
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Author (1):
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Ryan Henson Creighton Ryan Henson Creighton
Author Profile Icon Ryan Henson Creighton
Ryan Henson Creighton
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Table of Contents (22) Chapters Close

Unity 4.x Game Development by Example Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. That's One Fancy Hammer! FREE CHAPTER 2. Let's Start with the Sky 3. Game #1 – Ticker Taker 4. Code Comfort 5. Game #2 – Robot Repair 6. Game #2 – Robot Repair Part 2 7. Don't Be a Clock Blocker 8. Hearty Har Har 9. Game #3 – The Break-Up 10. Game #3 – The Break-Up Part 2 11. Game #4 – Shoot the Moon 12. Game #5 – Kisses 'n' Hugs 13. AI Programming and World Domination 14. Action! Appendix Index

Time for action – animate the Paddle


  1. Jump back into your MouseFollow Script if you're not there already by double-clicking on it in the Project panel.

  2. Change the line of code in the Update function ever so slightly so that it reads as follows:

        function Update () {
           transform.position.x += 0.2;
        }

The changes are very subtle. We added a plus sign (+) before the equals to sign (=), and we made the number smaller by adding a zero and a decimal place in front of it, changing it from 2 to 0.2.

Save the Script and test your game. The Paddle should scoot out the way, and fly straight off the right-edge of the screen!

What just happened – what witchcraft is this?

We made the 2 smaller, because the Paddle would have just rocketed off the screen in a twinkling and we may not have seen it. But, there's a tiny bit of code magic going on in that += bit.

By changing the transform.position.x property with += instead of =, we're saying that we want to add 0.2 to the x property on every update. The...

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