Java-Gaming.org Hi !
 Featured games (91) games approved by the League of Dukes Games in Showcase (756) Games in Android Showcase (229) games submitted by our members Games in WIP (842) games currently in development
 News: Read the Java Gaming Resources, or peek at the official Java tutorials
Pages: [1]
 ignore  |  Print
 2 Axises 1 Degree?  (Read 1874 times) 0 Members and 1 Guest are viewing this topic.
CyanPrime
 « Posted 2010-04-30 22:42:37 »

I'm using Jinput and I'm trying to learn how to use my controllers joysticks. Now each one seems to give me two axises but I don't know how to turn the axis numbers uinto a degree.  Can anyone please help me?
Nate

« JGO Bitwise Duke »

Medals: 167
Projects: 4
Exp: 14 years

Esoteric Software

 « Reply #1 - Posted 2010-05-01 00:12:02 »

I believe Component#getPollData gives you a float between -1 and 1. Joysticks don't know about degrees, just percentage of maximum deflection.

FWIW, here is a class I use for an Xbox 360 controller:
Maybe you can make some use of it or borrow some code. Other classes in that project can access the Xbox controller through the XInput Windows API.

CyanPrime
 « Reply #2 - Posted 2010-05-01 02:46:01 »

Alright, Thanks ^_^ I think I got it: (Math.toDegrees(Math.atan2(-axisa2, axisa1)) + 180)

JGO Wizard

Medals: 19
Projects: 19

Mojang Specifications

 « Reply #3 - Posted 2010-05-01 07:43:55 »

Math.toDegrees(Math.atan2(-axisa2, axisa1)) + 180

is the same as

Math.toDegrees(Math.atan2(axisa2, -axisa1))

Play Minecraft!
JuddMan

Senior Devvie

Medals: 1

 « Reply #4 - Posted 2010-05-01 10:07:15 »

Also

C2 = A2 + B2

Gives you how far the stick is tilted in its current direction.

dist = sqrt(axisx * axisx) + (axisy * axisy)

See, high school math is useful in the real world...
Pages: [1]
 ignore  |  Print

 DesertCoockie (53 views) 2018-05-13 18:23:11 nelsongames (84 views) 2018-04-24 18:15:36 nelsongames (75 views) 2018-04-24 18:14:32 ivj94 (760 views) 2018-03-24 14:47:39 ivj94 (88 views) 2018-03-24 14:46:31 ivj94 (644 views) 2018-03-24 14:43:53 Solater (103 views) 2018-03-17 05:04:08 nelsongames (185 views) 2018-03-05 17:56:34 Gornova (427 views) 2018-03-02 22:15:33 buddyBro (1087 views) 2018-02-28 16:59:18
 Java Gaming Resourcesby philfrei2017-12-05 19:38:37Java Gaming Resourcesby philfrei2017-12-05 19:37:39Java Gaming Resourcesby philfrei2017-12-05 19:36:10Java Gaming Resourcesby philfrei2017-12-05 19:33:10List of Learning Resourcesby elect2017-03-13 14:05:44List of Learning Resourcesby elect2017-03-13 14:04:45SF/X Librariesby philfrei2017-03-02 08:45:19SF/X Librariesby philfrei2017-03-02 08:44:05
 java-gaming.org is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑gaming.org