Search found 1293 matches

by wildmyron
Today, 10:19 am
Forum: Patterns
Topic: 19-bit still life syntheses
Replies: 52
Views: 2153

Re: 19-bit still life syntheses

It would be nice if someone could publish a list of the remaining xs19s sorted by appearances on catagolue so we have some sort of "hitlist" for 19-bitters to attempt next. Current list of unsynthesized xs19s with at least one C1 soup: xs19_ca2bp2sgzx23 - 1413 xs19_062s53z35871 - 261 xs19_660uhik8z...
by wildmyron
November 13th, 2019, 3:07 am
Forum: Other Cellular Automata
Topic: Any interest in reversible rules (and their implications)?
Replies: 8
Views: 2627

Re: Any interest in reversible rules (and their implications)?

Whilst exploring literature relating to Reversible Partitioned Cellular Automata I came across a paper describing self-replication in a 2D RPCA labelled SR_8. In this CA, cells are divided into 5 partitions (4 for von Neumann neighbourhood plus centre) with each partition being in one of 8 states. T...
by wildmyron
November 13th, 2019, 2:28 am
Forum: Other Cellular Automata
Topic: 3D Geminoid challenge
Replies: 2
Views: 217

Re: 3D Geminoid challenge

I didn't get around to responding to this, but I think it's an interesting idea - though its scope is a bit beyond what I'll be able to tackle. However, to get things started I think it would be good to clarify what CA space this challenge is aimed at. Specifically: any restrictions on the number of...
by wildmyron
November 12th, 2019, 10:37 pm
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1053
Views: 523048

Re: Oscillator Discussion Thread

Nice p13 oscillators, Bullet51 and A for Awesome. Here is a p5 version of the edge-shooting reflector (does that reaction have a name?) Repeat time: 40gen. Brought to you by the "Bigger is Better Oscillator Factory". (Truth be told I did cut the rotor down slightly from the first solution, and the s...
by wildmyron
November 12th, 2019, 12:20 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 1728
Views: 838536

Re: Thread for your unsure discoveries

... I just noticed that there is a problematic spark 8 tics after the initial interaction, it is even less likely to be possible to have a p8 reflector. The only option left is this: <snip p8 sparks> As Scorbie said, this is going to be very difficult to find a completion for at p8. Here's a partia...
by wildmyron
November 11th, 2019, 5:11 am
Forum: Other Cellular Automata
Topic: apgsearch - haul requests
Replies: 476
Views: 144849

Re: apgsearch - haul requests

... I would like someone else to search as many of these rules as possible for me. B3/S2-i3-q4i B3/S23-n4i B3/S23-n4in6c B2ci3aij7c8/S2-cn3-a4i ... I'm running apgsearch for these four rules. The second is very slow so I'm not sure if it will be successful. Edit: https://catagolue.appspot.com/censu...
by wildmyron
November 11th, 2019, 2:28 am
Forum: Other Cellular Automata
Topic: Smallest Spaceships Supporting Specific Speeds (5s) Project
Replies: 802
Views: 154919

Re: Smallest Spaceships Supporting Specific Speeds (5s) Project

Fantastic to see all the c/3 and > c/2 results in the last few posts. And well done finding that tiny p13268 spaceship. I'll try to keep the collection up to date, but probably just maintain the github repo for now. Main reason for this is I still don't have decent automated detection of spaceships ...
by wildmyron
November 7th, 2019, 6:20 am
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1053
Views: 523048

Re: Oscillator Discussion Thread

A note about categories of patterns that emulate various Elementary CA. @dvgrn: It seems like you have most of this figured out, particularly by the time of this post, but there still seems to be some confusion - not helped by the ConwayLife references to this subject being scattered about the place...
by wildmyron
November 6th, 2019, 11:29 am
Forum: Bugs & Errors
Topic: apgluxe 5.x not working in macOS Catalina
Replies: 5
Views: 206

Re: apgluxe 5.x not working in macOS Catalina

The file /usr/bin/python3 may just be a dangling symlink (executing file /usr/bin/python3 would tell you if that is the case). What would the output look like? I got /usr/bin/python3: Mach-O 64-bit executable x86_64 The output on Linux would look something like: /usr/bin/python3: broken symbolic li...
by wildmyron
November 6th, 2019, 3:57 am
Forum: Bugs & Errors
Topic: apgluxe 5.x not working in macOS Catalina
Replies: 5
Views: 206

Re: apgluxe 5.x not working in macOS Catalina

Something is clearly broken with Python3 on your Mac. Unfortunately I don't have enough experience with MacOS to understand how it might have got into this state or advise you on how to fix it. As a workaround you can edit this part of recompile.sh: if command -v "python3" &>/dev/null; then echo "Us...
by wildmyron
November 5th, 2019, 11:59 pm
Forum: Other Cellular Automata
Topic: Smallest Spaceships Supporting Specific Speeds (5s) Project
Replies: 802
Views: 154919

Re: Smallest Spaceships Supporting Specific Speeds (5s) Project

<snip> The last of these is a high-period c/3 orthogonal ship based on a rule found in the first post of the Rules with Interesting Replicators thread. I think it may be a good place to find other high-period c/3o ships. Thank you, and nice to see you here again. These are all new records (20 new a...
by wildmyron
November 5th, 2019, 11:11 pm
Forum: Bugs & Errors
Topic: apgluxe 5.x not working in macOS Catalina
Replies: 5
Views: 206

Re: apgluxe 5.x not working in macOS Catalina

I am unable to run apgluxe v5.09 in macOS Catalina because the utility "python3" cannot be found. Specifically, this happens when configuring the search for a particular rule. How do I repair this manually? This seems very strange because the build process specifically checks to see if python3 is a...
by wildmyron
November 5th, 2019, 10:42 pm
Forum: Other Cellular Automata
Topic: Rules with interesting replicators
Replies: 149
Views: 42008

Re: Rules with interesting replicators

EDIT: Another modification (-S6a) gives an apgsearchable rule (with the beehive being a failedrep)) with a natural knightship, (2,1)c/12, involving said failedrep: x = 9, y = 10, rule = B2en3eijq4cekr5iny6ce78/S1c2ck3-ijkq4ak5kq6ce7e8 7bo$6bobo$b2o3bobo$b2o4bo3$b2o$obo$2obo$2b2o! Very interesting t...
by wildmyron
November 5th, 2019, 5:21 am
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1053
Views: 523048

Re: Oscillator Discussion Thread

EDIT: Blinkerspawn and I have been working on some results derived from the above in the discord, and have determined that the p6 and 8 agars are both embeddings of stripe oscillators into the form of phoenix agars. (specifically, they're a simple background pattern XORed with the specified stripe ...
by wildmyron
November 3rd, 2019, 10:49 am
Forum: Other Cellular Automata
Topic: Smallest Spaceships Supporting Specific Speeds (5s) Project
Replies: 802
Views: 154919

Re: Smallest Spaceships Supporting Specific Speeds (5s) Project

Any smaller ships of this speed? (2c/104d, 6 cells) x = 4, y = 4, rule = B2kn3-nq6/S2-i3-ae4i o$2obo$2bo$o! Yes, there is a 3-cell spaceship of this speed in the collection: x = 3, y = 4, rule = B2-a3-eiq4-aekqt5-ej6aei7c8/S02ckn3cnq4ekntwz5ejkr6aei7c8 2bo2$2bo$o! There are currently 3-cell diagona...
by wildmyron
October 29th, 2019, 3:16 am
Forum: Patterns
Topic: Execution of Old Guns by Variable-Speed Firing Squad
Replies: 513
Views: 339364

Re: Execution of Old Guns by Variable-Speed Firing Squad

For anyone who is confused about EV's version being apparently smaller, there's a temporary non-glider spark on the right that extends the "official" bounding box of the gun by one cell. That extra overflow gets tracked by Kazyan's LifeHistory version of the gun but not by EV's plain-Life version. ...
by wildmyron
October 24th, 2019, 12:29 am
Forum: Patterns
Topic: 19-bit still life syntheses
Replies: 52
Views: 2153

Re: 19-bit still life syntheses

A list of low-hanging fruit, ordered by number of soups: <snip> Hopefully some of those include some soups with components that could be useful for other unsolved xs19s, but all the soups for xs19_8o0e9jzc9611 (picked at random from the middle of the list) produce the SL in a single flourish. Here ...
by wildmyron
October 23rd, 2019, 5:27 am
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2275
Views: 895330

Re: Thread For Your Useless Discoveries

Pointless further bounding box reduction (an extra column can be saved on the east with an appropriate weld, but I'm out of time): x = 74, y = 60, rule = LifeHistory 42.A$42.3A9.B$45.A7.3A$44.2A7.4BAB$44.5B5.A2BABA$46.3BAB4.B3.B$28.2A 15.3BABA4B4ABA$26.2B2A2B12.4BA2BA2B.B3A.BA$26.6B13.4B2A4B2.B.AB$2...
by wildmyron
October 23rd, 2019, 1:24 am
Forum: Other Cellular Automata
Topic: Thread For Your Useless Discoveries in Other CA
Replies: 18
Views: 8217

Re: Thread For Your Useless Discoveries in Other CA

c/4 ship in highlife <snip rle> It's similar in size to some other c/4 spaceships posted here , but it's different from all those and any others I can see in that thread. I suspect that means it hasn't been found previously but I don't know if there's a complete collection anywhere to verify that. ...
by wildmyron
October 16th, 2019, 5:10 am
Forum: Website Discussion
Topic: Pattern viewer for forum threads
Replies: 1295
Views: 304896

Re: Pattern viewer for forum threads

Sorry, you are right. I'm not sure how I got that confused. Also, Firefox on this desktop is out of date which is why I see different behaviour.
by wildmyron
October 16th, 2019, 3:30 am
Forum: Website Discussion
Topic: Pattern viewer for forum threads
Replies: 1295
Views: 304896

Re: Pattern viewer for forum threads

Clicking on 'this page' using Firefox 69.0.3 (64-bit) displays this error message Thanks for the report I'll take a look. The error appears to be because the link provided goes to https://lazyslug.no-ip.biz/lifeview/plugin/viewer.html, whereas the certificate is only valid for lazyslug.com https://...
by wildmyron
October 14th, 2019, 12:35 am
Forum: Scripts
Topic: NewCA.lua
Replies: 26
Views: 4702

Re: NewCA.lua

Thank you for your responses Andrew. * The biggest change is that *all* of the variables declared at the top are now global, so your RandomFill function can simply set dirty = true after calling RememberCurrentState(), and you now have access to pastecells, pasteht, pastewd, etc so you can redefine ...
by wildmyron
October 13th, 2019, 3:28 am
Forum: Patterns
Topic: Another speed has been eaten!
Replies: 11
Views: 613

Re: Another speed has been eaten!

EDIT: When the pattern was bigger than 16384, it said that the pattern is too large (max 16384). But when I shrunk it down to 16383, all of a sudden it suddenly said that 8192 is the max. Add this command to the pattern to allow it to be viewed with Lifeviewer: #C [[ MAXGRIDSIZE <14> ]] The default...
by wildmyron
October 13th, 2019, 1:23 am
Forum: Other Cellular Automata
Topic: Thread for basic non-CGOL questions
Replies: 221
Views: 91695

Re: Thread for basic non-CGOL questions

What happens if space is discrete and time is continuous? How would that effectively differ from discrete space + time? Here's an example of a geophysical model which uses a discrete lattice but continuous time. Of course the implementation of the model is not actually continuous, but an approximat...
by wildmyron
October 11th, 2019, 10:38 am
Forum: Other Cellular Automata
Topic: Partitioned Cellular Automata
Replies: 99
Views: 8079

Re: Partitioned Cellular Automata

rowett wrote:
October 11th, 2019, 9:58 am
A very slow semi-colon:

Code: Select all

x = 2, y = 4, rule = 2PCA4,0,2,4,3,8,9,5,14,1,12,6,11,10,13,7,15
.C2$.E$A!
Incredible. 8c/288350 according to oscar.