64 ratings
Portal 2 Binary Calculator!
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7.729 MB
Oct 10, 2012 @ 10:40am
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Description
A five-bit binary calculator, made entirely of standard Portal 2 testing elements! Input your numbers (which can be anything between 1 and 31) by placing cubes on buttons. A hideously complicated suite of laser machinery in the background will add them up, and the flip panels will display the result. Note that the layout is big-endian, i.e. the 1s bit is on the right, and the 16s bit on the left, the same way round as you would write normal numbers.

I was going to keep all the laser machinery completely hidden for the sake of aesthetics, but I changed my mind and decided to add a viewing corridor so you can go and have a look at it in all its confusing glory, if you feel you want to.

To leave the chamber, you'll need to put all 10 cubes on their buttons. I did it like that so I could stop you losing cubes in the exit fizzler, without needing to keep the droppers.
5 Comments
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Wrathful Monk Jun 27, 2013 @ 11:00am 
This is a complete and utter waste of time, and i'm in awe of your genius. May i ask, how long did it take you to work out the laser system? and is it possible to see the entirity of the laser rooms?

Rather than a viewing corridor, a viewing gallery?
Willful Jan 23, 2013 @ 2:40pm 
how is the Binary
Nosferath Nov 5, 2012 @ 4:07pm 
Oh, I had not seen it added binaries. I thought it converted decimals xP
The Colclough  [author] Nov 5, 2012 @ 2:03pm 
@Nosferath the input is two binary numbers, each controlled by a row of 5 buttons. for each input, the 16s bit is closest to the entrance, and 1s closest to the exit.
Nosferath Oct 28, 2012 @ 2:51pm 
I don't understand the input, care to explain?