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Frequently Asked Questions


Why is the game called U61?

In fact, when I first started this project, I had called it "Tetr61s". This was because the game was at first supposed to be quite close to Tetris(c) and there's a letter in Russian which is pronounced "i" (like in "tetris") and when you write it down it looks like you have written 61.

Since the Tetris Company (www.tetris.com) claims to have a look-and-feel copyright on Tetris(c), and sues independant game programmers who program Tetris(c) like games, I could not call the game Tetr61s, nor make a plain Tetris(c) clone. So I decided to start a new project, more general, and change the name. So "U" is because my nickname is "U-Foot" and "61" is because it is the successor of "Tetr61s".


Can I copy the game?

Yes, since the game is Free Software (free as in speech), protected by the GPL (GNU General Public License). You should have received a copy of the GPL with the game. For more informations on the GPL, check www.gnu.org.


Why did you use ClanLib instead of SDL?

SDL starts being a quite mature library, it's widespread, present in most GNU/Linux distributions, and used by professionnals such as Loki. Therefore, one might wonder why I chose ClanLib instead, knowing that it's much harder to install and also less common library than SDL.

I chose ClanLib because is a high-level programming library, and provides much more than SDL. Its main drawback is that it's still under developpement and therefore API changes occur a bit too often for me. But its big advantage is that it provides tons of usefull functions, and has a very clean design. I also like the idea that ClanLib is developped by independant programmers, just like me.


Why did you code yet another Tetris(c) clone?

There are 2 answers to this question:


This documentation is also available on: www.ufoot.org/u61.