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Im just a dude watching over my parents,
and trying to make cartoons and video games from home.

Script: Degrees To Eight Way Direction [JS]

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Dear visitors,

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, By Patcoola

Script Title: degToEightDir
Programming Language: Java Script
Date Completed: 2012/09/02

Purpose: To determine the direction something is from degrees. Returns a number between 0-7.

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Description: Determine the direction something is based on an eight way system of direction from degrees. Determines the direction using eight directions, returns a number ( 0,1,2,3,4,5,6,7 ), returns NaN (Not a Number) if the degrees argument is not a number, is a value greater than 360 or is a value lesser than -360.

Returned Values:

0 – Top
1 – Top Right
2 – Right
3 – Bottom Right
4 – Bottom
5 – Bottom Left
6 – Left
7 – Top Left
NaN – If the degrees_n argument is not valid

Method:

degToEightDir ( degrees_n ); // Returns a number

Arguments: degrees_n, accepts a number between -360 to 360.

Example Usage:

degToEightDir ( 180 ); // Returns 4

degToEightDir ( -180 ); // Returns 4

degToEightDir ( 760 ); // Returns NaN

 

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