Search found 7273 matches

by dvgrn
Today, 6:52 pm
Forum: Website Discussion
Topic: LifeWiki Trusted Account Request Thread - Post requests here
Replies: 487
Views: 200638

Re: LifeWiki Trusted Account Request Thread - Post requests here

Loadmaster wrote:
Today, 6:48 pm
I just joined today, so I'm requesting Trusted Account status.
Done!
by dvgrn
Today, 5:35 pm
Forum: Patterns
Topic: Gun Discussion Thread
Replies: 288
Views: 110593

Re: Gun Discussion Thread

p67 x = 27, y = 40, rule = B3/S23 7bo$7b3o$3o7bo$o8b2o10b2o$bo19bo$19bobo$19b2o5$10b2o$7b2o2bo$5bob2o3b 4o$3bob2o3bo3b2obo$5bob2o3bo3b2o$7b4o3b2obo$11bo2b2o$11b2o3$14b2o$11b 2o2bo$9bob2o3b4o$9b2o3bo3b2obo$9bob2o3bo3b2obo$11b4o3b2obo$15bo2b2o$ 15b2o5$6b2o$5bobo$5bo19bo$4b2o10b2o8bo$16bo7b3o$17b3o$19...
by dvgrn
Today, 2:13 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1925
Views: 826071

Re: Oscillator Discussion Thread

More partials: p79, good fallback, bad period... I don't think anything above 78 (or special-case 74) is really a "bad period". Sphenocorona's H-to-domino can supply those sparks in a true-period way. Unfortunately Sphenocorona's H-to-domino doesn't work in this context: x = 228, y = 109, rule = Li...
by dvgrn
Yesterday, 8:51 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

Is there a program that generates random INT rules? For some definitions of "random", yes . You may not find that a 50% chance of each isotropic bit being ON tends to give very interesting rules, unless you really like chaotic explosions. It's easy to change the random weightings in the script if y...
by dvgrn
June 12th, 2021, 4:06 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2292
Views: 1184687

Re: Thread for your unsure discoveries

Does this have any value? Well... definitely! But it's not new. It's an H-to-R converter that's been known for about a quarter of a century now -- part of the L156 Herschel conduit: x = 57, y = 89, rule = LifeHistory 11.D6.D2.5D2.3D10.D$11.D5.2D2.D5.D12.2D$11.D6.D2.D5.D13.D3.4D$11.D6.D 3.3D2.4D10.D...
by dvgrn
June 12th, 2021, 12:12 pm
Forum: Patterns
Topic: Structures resistant to attack
Replies: 1
Views: 123

Re: Structures resistant to attack

I was wondering if there are any (non-trivial) structures that are resistant to attack from the outside. What I mean by this is a structure that stays stable around the origin no matter what the cells outside of the bounding box start out as. For example there could be a bunch of glider guns aimed ...
by dvgrn
June 12th, 2021, 9:17 am
Forum: Patterns
Topic: Gun Discussion Thread
Replies: 288
Views: 110593

Re: Gun Discussion Thread

While the p486 and p576 oscillators don't set the bounding box record for glider guns (as far as I know), maybe they do for XWSS guns since they can be made multibarrel with reflected gliders? Probably not (if I'm understanding the suggestion correctly). Here are the current smallest p486 and p576 ...
by dvgrn
June 11th, 2021, 11:26 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

I realized something: If we double the "wicks" on themselves, the left one is still a single object but the right one is now two objects! To clarify: you know that the right one is two objects, but there isn't necessarily an existing object census algorithm that can reliably separate a "pseudo-wick...
by dvgrn
June 11th, 2021, 10:58 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

I don't care about wick/wave identification. To be specific, as far as I'm concerned: This is a wick... This is a wick... This is not a wick... This is a wick.. This is not a wick... This is a wick... So far this is doing a wonderful job of proving my contention that the correct algorithm to run he...
by dvgrn
June 10th, 2021, 10:16 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

Yes, keep everything else, removing moving waves too. The soups would be the board on lifecompetes.com. And I sometimes intentionally create wicks and waves on the lifecompetes server so I know they need to be handled. Sometimes, the entire board consists of nothing but agar-that also needs to be h...
by dvgrn
June 10th, 2021, 9:57 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

How would I automatically detect and remove wicks from a 50-by-100 torus? ... "and remove" means you want to keep whatever else is in the 50-by-100 torus that is not a wick? Are you only worried about stationary wicks, or are moving waves also worth worrying about? ... In other words, do you want t...
by dvgrn
June 10th, 2021, 6:38 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

What exactly is the textbook that Nathaniel Johnston is writing? What will be in it? When will it be published? Here's what the table of contents looks like at the moment: Preface . . . . . . . . . . . . . . . . . . . . . . . . . . xi The Goal . . . . . . . . . . . . . . . . . . . . xi Intended Aud...
by dvgrn
June 9th, 2021, 12:13 pm
Forum: Patterns
Topic: Crawlers
Replies: 45
Views: 15625

Re: Crawlers

this looks somewhat promising x = 68, y = 112, rule = B3/S23 2bo$obo$b2o29$66b2o$66b2o17$21bobo$22b2o$22bo8$66b2o$66b2o27$66b2o$66b 2o9$43bo$44bo$42b3o10$58bo$57b3o$57bo! That's an interesting one, for sure -- an orthogonal 28c/83 R-pentomino crawler! Produces two gliders for every input glider. I ...
by dvgrn
June 8th, 2021, 1:13 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2292
Views: 1184687

Re: Thread for your unsure discoveries

4 glider synthesis of U-turner... synthesise-patt.py knows about 22 three-glider collisions that produce the b3o$b3o$obo$2o! object (or something with the same population sequence that converges to it within a few ticks): x = 1587, y = 20, rule = B3/S23 8bo70bo74bo70bo75bo77bo70bobo73bo78bo77bo74bo...
by dvgrn
June 8th, 2021, 6:12 am
Forum: General Discussion
Topic: Collagol
Replies: 11
Views: 4335

Re: Collagol

GUYTU6J wrote:
June 7th, 2021, 11:53 pm
Sorry to bump the thread, but the site has been down for me currently. Can anyone retrieve it?
I remember having put one of my repeat waves inside the universe back in 2019 though.
I hadn't tried to visit the site for a while, but it's down for me as of this morning.
by dvgrn
June 7th, 2021, 3:31 pm
Forum: Bugs & Errors
Topic: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide
Replies: 24
Views: 774

Re: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide

Also, I just encountered a difficulty with synthesize-patt. I copied and pasted generation 247 (I typically advance the patterns for a while before running synthesize-patt if the activity lasts long enough in order to get synthesizes that make the desired object as well as sparks or smoke.) of the ...
by dvgrn
June 7th, 2021, 9:31 am
Forum: Bugs & Errors
Topic: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide
Replies: 24
Views: 774

Re: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide

Could you use future discussion to the Scripts subforum, as it seems to be a better place for finding the topic of the discussion? As for your question, that seems to be a Python 2/3 incompatibility. For a quick fix, run `2to3 -w .` (or `/Your/Path/To/Python/Tools/Scripts/2to3.py -w .` if that fail...
by dvgrn
June 6th, 2021, 9:03 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

Is lifelib capable of analyzing methuselahs, i.e. given a pattern RLE, can any function output its lifespan, bounding box, MCPS, final population, etc? No. Because ConwayLife is Turing-complete, one can build a Turing machine in it and run an example of why the halting problem has no general soluti...
by dvgrn
June 5th, 2021, 11:42 am
Forum: Bugs & Errors
Topic: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide
Replies: 24
Views: 774

Re: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide

Some but not all of the collisions make that region. Do you know why? Yup, this is a known shortcoming of synthesise-patt.py. It uses a population sequence as the hash values for recognizing active reactions. When there are only a few ticks before an active reaction stabilizes, and when the populat...
by dvgrn
June 5th, 2021, 7:21 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2292
Views: 1184687

Re: Thread for your unsure discoveries

pzq_alex wrote:
June 5th, 2021, 2:50 am
Almost pi-to-g.

Code: Select all

x = 9, y = 4, rule = B3/S23
7b2o$3o4b2o$obo$obo!
This is a really good, really old reaction, frequently rediscovered -- the "three-block shifter", just after one of the blocks has been hit with a glider and turned into a pi.
by dvgrn
June 5th, 2021, 7:14 am
Forum: Bugs & Errors
Topic: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide
Replies: 24
Views: 774

Re: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide

Definitely stop trying to fix that version of the script. The "bytes" vs. "str" is indeed a marker for Python 2 vs. Python 3 incompatibility. So instead, post a link to the specific script that you're using, and then we can tell you where the Python 3 version of that script can be found. I can't re...
by dvgrn
June 4th, 2021, 3:03 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

creeperman7002 wrote:
June 4th, 2021, 3:01 pm
I remember that there was a collection of common evolutionary sequences somewhere in the forums, however I can't find it now. Where is the collection?
This thread by MathAndCode, maybe?
by dvgrn
June 4th, 2021, 10:09 am
Forum: Bugs & Errors
Topic: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide
Replies: 24
Views: 774

Re: Mac Python 3.9 / Golly 4.0 Troubleshooting Guide

Maybe the copy of the script that I have is meant for the wrong version of Python? I think this thread has diverged into a different topic, but did you use `g.new()` or `g.reset()` by any chance? The script uses g.new(). Definitely stop trying to fix that version of the script. The "bytes" vs. "str...
by dvgrn
June 4th, 2021, 9:43 am
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1925
Views: 826071

Re: Oscillator Discussion Thread

We Need P30<n<60 Boat Factory... x = 14, y = 14, rule = B3/S23 b2o$bobo8b2o$2bo8bobo$12bo4$4bo$4b2o$4bo$bo$obo8bo$2o8bobo$11b2o! That's certainly doable, though it's not exactly pretty: x = 268, y = 266, rule = B3/S23 142bo14b2o$136b2o3bo2bo2b3o4b2obo$136bo2b2obobobo4bo7bo$151bobobo2b2o$ 137bobo7b2...
by dvgrn
June 4th, 2021, 8:24 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2801
Views: 809288

Re: Thread for basic questions

The obvious question I've resisted asking: would it be cheaper to use a pair of buckaroos instead of snarks? The timing of the bit loop would be constrained to a multiple of 30 but that's not obviously a deal breaker . You should be able to convert back and forth to any period greater than 30, (e.g...