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Portal 2 Latch Example
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May 8, 2012 @ 6:03pm
May 8, 2012 @ 6:19pm
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Description
This is an example of how you can create logic circuits using lasers in Portal 2.
10 Comments
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Levitz Nov 13, 2012 @ 12:54pm 
Very interesting.
Moogoo The Mangler May 12, 2012 @ 1:35pm 
This is very clever, thank you for publishing it. This latch design is integral to my puzzle "Heartbeat": http://steamcommunity.com/sharedfiles/filedetails/?id=71495919
The Great Flapsbury May 11, 2012 @ 9:10am 
Thanks, I used this desgin in a puzzle I made where a thrown cube would sometimes fall off of the button.
http://steamcommunity.com/sharedfiles/filedetails/?id=71274281
hym May 9, 2012 @ 6:01pm 
You might be interested in this implementation, I made a timer for floor buttons based on the latch. http://steamcommunity.com/sharedfiles/filedetails/?id=68651008

The method I used is a bit too complex for what's required in that button position but it needed a couple safety features for when the timer doesn't simply get a single pulse to start on, the elevator would start bouncing and knock the reflective cube out of place.

Last time I checked Valve maps in Hammer for timed floor buttons they had their output forwarded to pedestal buttons with a timer, I kinda prefer this version, more tricks less hacks.
fromageelectronique  [author] May 9, 2012 @ 8:50am 
I've created more examples of logic gates here: http://steamcommunity.com/sharedfiles/filedetails/?id=68596279
mishagale May 8, 2012 @ 10:50pm 
That is pretty sweet. The only minor downside is that there is no visual association between the button and the door (or whatever it activates.) If you seal the "latch mechanism" somewhere unreachable, then you get little icons instead of dotted lines, but the icons won't match up: the door will be paired with the laser-catcher, and the button will be paired with the laser-emitter.

I wonder if we can make an OR or XOR gate? That could make for some interesting puzzles...
az6667 May 8, 2012 @ 10:24pm 
eeeexcellent. i wanna make a full adder now
AnJet貓 May 8, 2012 @ 10:20pm 
Awsome! Thanks for sharing this! Cave!
Mr. Bitters May 8, 2012 @ 10:00pm 
This is so cool
Odessa Cubbage May 8, 2012 @ 8:19pm 
Awesome!