A Flash Developer Resource Site














Internet Commerce

Partners & Affiliates














Developer Channel

internet.com


Featured Flash FLA
Gallery Downloads 11336 Flash Movies | 2 New Flash Movies Added
What's New | Top 100

Featured FLA

» Author: Surjit Dhami
» Title: Book
» Description: Book
» More by Surjit Dhami


Random FLAs | Add Flash Movie
Featured Flash Site
Gallery Downloads 5848 Flash Sites | 0 New Flash Links
What's New | Top 100 Flash Site

Featured Site

» Posted in the Flash Kit Links section
» Title: All-American Rejects
» Description: Get to know this great band by exploring their "practice room".


Random Links | Add your own Flash Related Links
Flash Tutorials 1277 Tutorials 7 New Tutorials Added!
What's New | Top100

» Create xml slideshow with free template
» How to Insert a Multilingual Subtitle Into Your Flash Video Studio
» How to Create Cool Halloween Slideshow
» Debugging flash using the Firebug console
» Create Flash Slideshow on Blogger
» FLASH TRICKS IN WEB ADVERTISING: FLASH BANNERS
» HTML Photo Gallery Tutorial
» Create your first flash site – PART 1
» How to Make a Flash Photo Gallery
» Unknown Tag: Title10
Random Tutorial | Add Site

Trading Customer Accounting (IL)
Next Step Systems
US-IL-Chicago

Justtechjobs.com Post A Job | Post A Resume


Tutorials Home What's New Top Rated Submit myTutes Random!

Search Tutorials


Tutorials Tutorials » Games

Categories Detecting the Mouse Angle
Author: Flash Junkie | Website: http://www.flashkit.com |

 
Page 5
«prev 1 2 3 4 5 6 7 next»

How To Find The Mouse Location (cont)

Comment: ----------------------------------------------
Comment:     lookup angle in table
Comment: ----------------------------------------------
Set Variable: "counter" = 0
Set Variable: "found" = 0
Loop While (not(found))
 If (sin_theta>=Substring (..:sine_lookup_table,(counter*6)+1,5))
Comment: this counter will only increase if sin(Theta) is greater than or
exactly the angle match in the lookup table. This way, if the sine value has no exact match then the counter will point to the angle closest (less than) the correct answer.
 Set Variable: "angle" = counter+1
 Else
 Set Variable: "found" = 1
 End If
Set Variable: "counter" = counter+1
End Loop

What does this loop do? It starts a counter at 0. It looks at the first sine value in the table. If that sine value is less than the calculated vale for our angle, then nothing happens. we increase "angle" by one because it obviously isn't this low. This goes on until our calculated value for our angle becomes LESS than the lookup value in the table. Than means the actual angle we are at is less than the one the counter is at. In that case, we don't increase "angle", we set a variable "found" to "1" (another way of saying "found is true") and now the Loop While (not(found)) statement is false. Loops continue endlessly until the condition in the brackets is true.  Since found starts out as "0" (false), not(found) can also be read as "not false". In other words, not(false)=true. So the loop reads (Loop while true). As soon as it the condition changes to "false" it quits the loop, stopping any further calculations because we've found the angle we are looking for. 

This is just a fancy way to make the loop read more English-like.

«prev 1 2 3 4 5 6 7 next»

» Level Advanced

Added: : 2000-12-18
Rating: 6.29 Votes: 91
Hits: 7711
» Author
Flashjunkie is a self-professed obsessive addict of life. Due to the highly artistic nature required of an Art Director for an Ad agency, he took up Flash to add some math to his diet.
» Download
Download the files used in this tutorial.
Download (7 kb)
Get conversion and unzipping tools for PC and Mac here!

» Forums
More help? Search our boards for quick answers!

Please rate this tutorial, 10 is the top rating, you can also click the comments link to read/write a review.
10 9 8 7 6 5 4 3 2 1
Read or Post Comments
 
   
 

internet.commediabistro.comJusttechjobs.comGraphics.com

Search:

WebMediaBrands Corporate Info

Legal Notices, Licensing, Reprints, Permissions, Privacy Policy.
Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs