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I went to the Game Concept Challenge 2009’s 24 Hour Programmer Challenge, where we got a theme and 24 hours to make a game. The theme this year was “puzzle game” with pretty much no restrictions.

I decided to make a game where you steer by whistling, which I called Aurality. It’s rather unpolished; I spent quite a few of my hours first coming up with an idea, and then learning and understanding fast fourier transforms and all that that entails…

For the iPhone coders in the crowd, the sources are available at Github. In the Vendor folder you also find the FFTW discrete Fourier transform C library, precompiled and lipo’d (It’s a Simulator+Device universal binary) as a nice static archive for inclusion in an iPhone project.