Category Archive for "Articles"

Private Local LoRa Networks

Jul 6, 2015 | By Sean Godinez | Posted in Articles, Internet of Things | With Comments are closed

LoRa has been getting a lot of attention lately: IBM, Cisco, and Espotel to name a few. She caught my eye early on, but I didn't really like the idea of thousands of motes broadcasting messages through transparent 'dumb' gateways to a central server in the cloud before any useful actions could be taken on...

Keeping Planes in the Sky and Satellites in Orbit

Apr 5, 2013 | By Michael Boldischar | Posted in Articles, Java, Uncategorized | With 4 comments

The idea came to me the other day as I was assigning a value to a variable in Java. I asked myself, "What units are being used for this variable?" Every number you enter into a programming language has some type of units associated with it. Some units are simple: feet, pounds, inches, meters. Other...

Android Ant Proposal

Mar 17, 2012 | By Michael Boldischar | Posted in Android, Apache Ant, Java | With Comments are closed

We just finished submitting a proposal to the adt-dev Google Group. Here is a link to the new proposal. The goal of the proposal is to get a set of standard Ant tasks developed for Android. We would appreciate some feedback on this proposal. Let us know if you would like...

Mocking Frameworks Considered Harmful

Dec 1, 2011 | By Michael Boldischar | Posted in Articles, Java, Uncategorized | With Comments are closed

Find out why mocking frameworks are considered harmful. Why do software engineers love them? Does it have something to do with code?

Microtransaction Library Uploaded

Oct 1, 2011 | By Michael Boldischar | Posted in Android, Apache Ant, Java, microtransaction, Unified Modeling Language | With Comments are closed

Disgruntled Rats Android microtransactions (in-app billing) library has just been released as open source.

Disgruntled Rats Podcast for September 11, 2011

Sep 11, 2011 | By Michael Boldischar | Posted in Android, Apache Ant, Gamers, Graphics Engine, Java, OpenGL ES 2.0, Podcasts | With Comments are closed

News, discussions, and an overview of Android microtransactions/in-app billing for September 11, 2011.

Game Development in Android

Aug 9, 2011 | By Michael Boldischar | Posted in Android, Apache Ant, Articles, Graphics Engine, Java, OpenGL ES 2.0, Ubuntu | With Comments are closed

Thanks to everyone who attended our session on game development in Android yesterday. Sean, Brian and I all had a great time and enjoyed the questions and interactive discussions. If you have any other questions for us, send us an email at disgruntledrats@gmail.com. Here is a copy of the presentation we gave. Also, the Java...

New Android Examples Added

Aug 8, 2011 | By Michael Boldischar | Posted in Android, Apache Ant, Articles, Graphics Engine, Java, XML | With Comments are closed

In preparation for the Twin Cities Java User Group Presentation on August 9th, 2011, the Disgruntled Rats have added new Android example projects to their website. Check out the following link for more information: http://www.disgruntledrats.com/?page_id=545 We will continue adding examples and content to our website that is useful to developers as time permits. Cheers and happy...

The Quick and Dirty to OpenGL ES 2.0 on Android

Aug 1, 2011 | By Sean Godinez | Posted in Android, Gamers, Graphics Engine, OpenGL ES 2.0 | With Comments are closed



This is a short article for those familiar with OpenGL's programmable pipeline and are 

interested in using the OpengGL ES 2.0 API for Android development.


To use the OpenGL ES API in an Android environment you have to setup a GLSurfaceView 

object, override the GLSurfaceView.Renderer, and attach the renderer to the surfaceview. 

Additionally, you could extend...

DGR will be presenting at the Twin Cities Java User Group on August 8th, 2011

Jul 27, 2011 | By Michael Boldischar | Posted in Android, Articles, Gamers, Graphics Engine, Phantom Engine, Press, Uncategorized | With Comments are closed

The Disgruntled Rats are presenting information on game development for the Android platform. We have been working on building an Android graphics engine for over a year now and have interesting lessons to share. Everything from basic game components (sound, sprites, events) to complex calculations (AI, transformations, and physics). Also included in the presentation will...

Category Archives: Articles