Conway's Game of Life, in real life

(lcamtuf.substack.com)

96 points | by surprisetalk 5 hours ago

16 comments

  • exolab 1 hour ago
    > I figured out what would be a reasonable amount to spend on the project and then multiplied that by 10.

    I like the way you think.

  • Cthulhu_ 10 minutes ago
    I love this and would love to see it on a wall at our office or something like that. Maybe there's smaller/cheaper led/switches that would work in a handheld version.
  • cjfd 41 minutes ago
    When I was a teenager, I read a book about assembly language for the commodore and implemented the game of life in a really simple way. I just used the text screen. To switch on a cell, I would put an asterisk ('*') in it. Then I could run my machine code program and it would evolve according to the rules of the game of life.
    • abcd_f 13 minutes ago
      And who didn't do that! :)

      You could also 4x the resolution by using half- and quarter-block characters from the top half of the ASCII table (or it'd be the PETSCII one i C64 case).

  • Traubenfuchs 6 minutes ago
    Would be interesting to do this with people and observe the inevitable mistakes they make.

    Now that would be simulating life witg life.

  • eps 1 hour ago
    I saw one in a computer museum in Switzerland. It was a much larger field, it was just large orange LEDs (or were they tubes?), but it also cycled between a dozen of different cell automata games. Something about being able to see individual "pixels" made it really mesmerizing.
  • PetitPrince 2 hours ago
    My Alma matter has a jumbo version of this, in which the game if life is one of several available mode https://en.wikipedia.org/wiki/BioWall
  • mastermedo 54 minutes ago
    A thousand bucks for 17x17 touchscreen. Add a painting frame, hang it on the wall, and you made yourself amazing art for cheap.
  • vunderba 4 hours ago
    Nice. A friend of mine just picked up a Linnstrument, and I’m very tempted to create a Conway’s Game of Life-based musical visualization for it.

    https://www.rogerlinndesign.com/linnstrument

  • galaxyLogic 2 hours ago
    I wonder is there a version GoL where every bit on a computer-display or LCD TV is one cell? How does it look?
    • alex_duf 1 hour ago
      Do you mean every pixel or every sub-pixel? Sub-pixel is interesting because the geometry of the grid isn't going to be the same from one screen to the other. It might also look compressed horizontally.
    • eps 1 hour ago
      Conversely, it'd be cool to play it on an large empty office building.

      One window = one pixel.

  • slow_typist 1 hour ago
    Très cool.

    A grid of capacitive touch sensors could be printed directly on the pcb, bringing down costs by a degree of magnitude. Real switches are much more satisfying though.

    • f1shy 1 hour ago
      I want to do a game like lights out. I'm thinking in 3d printing transparent caps and using dirt chip pcb switches and standard leds. The cost must be also down to 30 cts. Would be like a middle ground.
  • CJefferson 2 hours ago
    I've always wanted something like this board, buttons which can light up (preferably a few colours), to use to make games. Anyone ever found such a board which is hackable / programmable?
    • Cthulhu_ 6 minutes ago
      https://www.adafruit.com/category/280, they're ready made from 4x4 to 16x8 but in theory you can just put more modules into an enclosure.
    • rmnclmnt 1 hour ago
      Novation Launchpad used to be exactly that: you send MIDI CC messages with proper values and you can light up the grid (with different colors).

      Did that a few years back, i guess this might still be possible

  • self_awareness 1 hour ago
    That's not a "physical" version of game of life -- that's a digital version, like every version, but with bigger pixels.
  • mkirsten 39 minutes ago
    It is beautiful
  • fwipsy 2 hours ago
    I don't want to build this or pay for it, but I really want to mess with it for an hour.
  • shawoodle65 44 minutes ago
    surprised this isn't talked about more
  • gethwhunter34 3 minutes ago
    tldr for anyone skimming: the key insight is in section 3