Conway's Game of Life, using floating point values instead of integers • Hacker News Board

Re: Conway's Game of Life, using floating point values instead of integers

#21

Post by jrl » Thu, Oct 11, 2012, 8:11 PM UTC

It looks like cells under the microscope. Very interesting stuff.

Re: Conway's Game of Life, using floating point values instead of integers

#22

Post by mmariani » Thu, Oct 11, 2012, 8:14 PM UTC

jonny_eh wrote: post #4

I need this as a screensaver, asap!

If you're on a Mac I guess you could hack it rather quickly in Quartz Composer using this as a starting point. http://quartzcomposer.com/compositions/135-conway-s-game-of-...

Re: Conway's Game of Life, using floating point values instead of integers

#23

Post by tisme » Thu, Oct 11, 2012, 8:18 PM UTC

dgreensp wrote: post #20

tisme wrote: post #10

Earlier quoted context omitted.

check out hashlife and some of the larger landscapes.

Thank you, mind blown! Downloaded "Golly" ( http://golly.sourceforge.net/ ) and ran HashLife/metapixel. Life simulating life, and it runs in real time.

Mind blown pretty much describes what I felt like when I first came upon it.

After spending a good bit of time optimizing 'life' having your ass handed to you by a large number of orders of magnitude courtesy of mr. Norvig is a good lesson in humility.

Re: Conway's Game of Life, using floating point values instead of integers

#24

Post by tisme » Thu, Oct 11, 2012, 8:19 PM UTC

finnw wrote: post #19

dllthomas wrote: post #15

Earlier quoted context omitted.

Right - can you still build a UTM in this?

If you could, I imagine that the hard part would be proving it correct.

All you'd really need to do is to find a way to simulate 'regular' (discrete) life. Setting it up would be a major pain.

Re: Conway's Game of Life, using floating point values instead of integers

#25

Post by teamls » Thu, Oct 11, 2012, 8:24 PM UTC

Hey guys, check out the Conway's Game of Life Code Garage project on LearnStreet: http://www.learnstreet.com/cg/simple/project/conways

Re: Conway's Game of Life, using floating point values instead of integers

#26

Post by Anchor » Thu, Oct 11, 2012, 8:25 PM UTC

tisme wrote: post #13

Fascinating, totally mesmerizing video. That's reminiscent of something that you could be observing under a microscope.

I wonder what a 3D version (http://www.ibiblio.org/e-notes/Life/Game.htm) of a continuous game of life would look like... could similar cell-like structures emerge with these kind of rules also in 3D.

Re: Conway's Game of Life, using floating point values instead of integers

#27

Post by pav3l » Thu, Oct 11, 2012, 8:25 PM UTC

Aren't cellular automata in continuous space just PDE's? If so, what is the equation being integrated?

EDIT: found the paper: http://arxiv.org/pdf/1111.1567v2.pdf

Re: Conway's Game of Life, using floating point values instead of integers

#28

Post by tomjen3 » Thu, Oct 11, 2012, 8:25 PM UTC

uvdiv wrote: post #7

HTML5 implementation in 3, 2...

Well I can't seem to find the rules, but that shouldn't be very difficult.

Might even be able to do it in a way that works without canvas.

Re: Conway's Game of Life, using floating point values instead of integers

#29

Post by brilee » Thu, Oct 11, 2012, 8:28 PM UTC

pav3l wrote: post #27

Aren't cellular automata in continuous space just PDE's? If so, what is the equation being integrated? EDIT: found the paper: http://arxiv.org/pdf/1111.1567v2.pdf

Not quite; the values at every point are boolean, not floats.

(From the link) The algorithm is explained here: http://www.youtube.com/watch?v=iyTIXRhjXII

Re: Conway's Game of Life, using floating point values instead of integers

#30

Post by brilee » Thu, Oct 11, 2012, 8:29 PM UTC

dexter313 wrote: post #2

Awesome, but the results/behaviour (in the video) don't seem very complex like the original Conway's game of life.

It seems to have much simpler behavior - gliders, bridges, and bricks. Don't think we're going to discover any prime number generators with this version of Life.