Martin Pitt

addicted to Ubuntu development

Artikel getaggt mit hobby

Die nächste Stufe…

Sep 27

Gepostet von pitti in personal | 5 Kommentare

… auf der Taekwondo-Leiter ist erreicht!

Gestern fand hier in Dresden mal wieder ein Lehrgang mit unserem Großmeister Kim Chul Hwan. Er hat uns ab um neun ordentlich auf Trab gehalten. Ich hab mich gestern auch mal wieder einer Gürtelprüfung gestellt, die ich auch bestanden habe. Formenlauf, Einschritt- und Freikampf gingen glatt über die Bühne, ich hatte nur etwas Bammel vor dem Bruchtest (Yop-Chagi), da ich den vorher noch nicht geübt hatte. Ging aber beim ersten Versuch durch.

Nun bin ich stolzer Träger des 4. Kups (blauer Gürtel)!

English summary:
Yesterday I earned the next Taekwondo belt at the training camp with grandmaster Kim Chul Hwan. Now I’m the proud bearer of the 4th kup (blue belt).

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Asteroids bot submitted, publishing source

Jul 7

Gepostet von pitti in personal, ubuntu | 1 Kommentar

A while ago I blogged about my participation in the c’t programming contest to write a bot that plays against the 1979 Atari console.
Submission deadline was June 30th, and the results are trickling in now.

I am on rank 104, which I’m more than satisfied with. Unsurprisingly I didn’t make the top 50, I spent way too little time on it. But I had lots of fun with it, I have something that works, and at least outperforms my own Asteroids skills :-)

In case anyone is interested in it, the source code is on http://piware.de/bzr/ct-asteroids/. It’s a bzr branch, so you can bzr get the directory.

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My computer discovered playing games

Mai 7

Gepostet von pitti in personal, ubuntu | 3 Kommentare

The other day I read about the current c’t programming contest and got addicted immediately. The task is to create a program which plays the Atari Asteroids game from 1979:

Unfortunately they do not send that gem to everyone :-) , but they do send the original 8 KB of ROM, so you can play it on the MAME emulator.

So far I got the emulator and the game running, and have a Python script which tracks the objects and their velocity vectors. I spent half of the weekend doing the vector analysis bits with good old pencil and paper. Reviving all the maths bits from school (about 11 years ago) was a lot of fun! Now I have useful formulas for determining the shooting angle to hit a moving comet from a moving and decelerating ship, determining if and when two moving objects with given radius collide, etc. In my head I have a first cut of a strategy, too.

Now I just need to find some time to actually implement all of this…

Once the contest is over, I’ll publish my sources, in case anyone else is interested.

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