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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
Languages
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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 – Log the New Number


  1. Change your Debug.Log() call so that it looks like this:

        Debug.Log( (Input.mousePosition.x -Screen.width/2) /  (Screen.width/2) );

Ack! So many brackets! We use those brackets because we want the division and subtraction stuff to happen in the right sequence. You may remember order of operations rules from algebra class. BEDMAS: evaluate the Brackets first, then the Exponents, then Division, Multiplication, Addition, and finally Subtraction.

To wrap your brain around it, here's what we're doing, in pseudocode:

(first thing)/(second thing)

We're dividing something by something else. The first thing is the -640 to 640 number range that we cooked up. The second thing is Screen.width/2 (the screen's midpoint). We wrap all of that in a tasty Debug.Log() shell:

Debug.Log((first thing)/(second thing));

Note

Pseudocode is fake code that will not work if you type it into a Script. We're just using it to better understand the real code that we're writing...

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