ConwayLife.com

the "@SAMPLE_SOUPIDS" section has single line RLE patterns without the dimensions, and beginning with a "-" character. What is the purpose of the dash/hyphen/minus? I don't see it mentioned in the RLE doc page. Is it supposed to be a marker for the missing dimensions? Also, Golly for MacOS won't dis...

The current RLE format has issues where the pattern is repetitive but does not repeat the same cell What exactly are the "issues"? Other than not being compact or pretty. Writing an RLE encoder/decoder in a new language should be an almost trivial activity, a perfect "exercise for the student" kind...

It's known: http://catagolue.appspot.com/object/xp2 ... 0703/b3s23

The only known oscillator with the rotor descriptor: "p2 r18 7x8 ..1A1A.. .A....1. 1......A A......1 1......A .A....1. ..1A1A.." (Not surprising, as there's no easy way to hang any tails or inductors off it.)

Years ago I finished a survey of all the possible ways a single Glider could collide with objects with populations up to 17 bits. So there's nothing new to find there. Reducing an object to something smaller wasn't unusual. Increasing the population count (as in this case) was fairly unusual. So any...

Sorry to hear the server is acting flakey. As mentioned elsewhere, all the software running this site is "legacy"-- not supported or maintained. Not sure why the 503 errors, other than it might be because of the forwarding needed from my actual webserver to the old PowerPC Mac that can actually run ...

Ian07 wrote:This 3G snake-to-worm has to already be known, right?

I don't list it, but I do have a 2 Glider solution--
The Carrier to Bi-Pole is new to me.

Every so often someone posts the assertion that "period 2 oscillators are not interesting". I respectfully disagree, as it all depends on the definition of "interesting." Years ago I started a project of cataloging all the parts which can be combined to make Period-2 oscillaters. Have worked on it w...

Following up on Niemiec's post that there are an infinite number of 3 Glider collisions with a concrete example. Consider the following pair of 3 Glider collisions: x=49, y=32 33bo$34b2o$33b2o$o$b2o$2o18$46bo$11bo33bo$10bo34b3o$10b3o2$46b3o$11b3o32b o$11bo35bo$12bo! In both cases the collision start...

Two Gliders to make that isolated bit has been known for a while, and is the basis for a number of components, but you do have a few new applications of it in there.

mniemiec wrote:...RLE patterns in signatures...

User Control Panel > Board Preferences > Edit display options

has a number of settings that allows one to turn down the noise.

I do think everything needs to be free. I disagree. People who put in a lot of effort should be compensated for that effort. That textbook was a non-trivial task, taking up a lot of their time. Especially producing a physical product. Why should they not get paid the equivalent of what they could h...

I'm getting a similar problem with https://conwaylife.com/forums/viewtopic.php?f=2&t=4881 and some other recent pages. "A problem repeatedly occurred." Doesn't say what problem, and the Javascript console shows nothing. After a refresh, if I immediately hit Cmd-. and stop the Javascript from loading...

I think the Catagolue should have the ability to identify and name still lifes by Composite patterns as well as APGcode Are you volunteering to do a demonstration project doing this? Because something like this is going to be non-trivial, and require a lot of preparation. But then end result should...

Yes. I have five variations on this theme, plus another requiring 3 Gliders. x=75, y=25 2o15b2o22bo5b2o15b2o$2o15b2o21bo6b2o15b2o$2b2o3bo11b2o3bo15b3o6b2o2bobo10b 2o2bobo$2b2ob2o12b2ob2o9b2o14b2o2b2o11b2o2b2o$6b2o15b2o8b2o5bo13bo16bo$35b 2o2b2o32bo$7bo17b3o7b2o2bobo13b3o14b2o$6b2o17bo29bo16bobo$6bob...

Other than because it exists, why does this object need a name? Maybe what's needed is for someone to setup a system of selling NFTs with the "naming rights" to Life objects. That way a list of the "official" names for Life objects could look like a list North American sports venues.There are an inf...

Looks like the P2 Oscillator constructions are missing a few, because I have: x=98, y=104 93b2o$30b2o59bo2bo$27bobobo57b2o2bo$27bo$27bo3bo59bo2b2o$31bo6bo54bo$27bob obo6bobo48bobo$27b2o9b2o49b2o2$19bobo59bobo$20b2o60b2o$20bo61bo2$19b2o12b 3o45b2o12b3o$18bobo12bo46bobo12bo$20bo3bo9bo47bo3bo9bo$23b2o1...

The large agar can't be constructed by Gliders. Here are some small stable objects based on patches from the agar. #C w:28_ck3qp3ckz11642611 (28.128059223) #C w:50_ck3qp3ckzp96ki6p9z23c95c23 #C w:88_ck3qp3ck3qp3ckzp96ki6p96ki6p9z23c95c23c95c23 x=44, y=14 2b2obo8b2obo2b2obo8b2obo2b2obo$2bob2o8bob2o2b...

Based on that posting. I created an SQLite database from it, so it could be searched for things like this, but made no attempt at checking for duplicates or other cleanup. Not familiar with SJK format.

The 3Glider database I have shows only 5 collisions where the results contain a Snake: x=5, y=19 4bo$2b2o$3b2o9$bo$2bo$3o3$b3o$3bo$2bo! x=35, y=35 32bo$32bobo$32b2o27$o$b2o$2o$5bo$4b2o$4bobo! x=23, y=18 21bo$22bo$20b3o3$20b2o$21b2o$20bo8$b2o$obo$2bo! x=22, y=37 19bo$19bobo$19b2o29$o$b2o$2o$5bo$4b2o$...

Might have mentioned this before, but a way to download all the attachment files at once would be nice. Right now a reader needs to go to a page for each chapter, which can be annoyingly time consuming. Tagging the individual patterns with the figure number would be nice, too, but that would probabl...

I was impressed by how the user had registered months ago, and this was its first posting. Usually spammers don't wait that long.

Long time ago when I was doing random bitpattern studies, I noticed similar effects, didn't do much else to follow up. But this matches my experience, for what that's worth. For a while, I tried some large areas, up to 1024 square. One thing I noticed was that it seemed like a lot of the Ships came ...

My original draft of MCPS used a base-64 apgcode instead of rle. Would that be preferable? How much smaller is it compared to the current apgcode? We have enough different formats as it is, and it seems that the suffix portion of the apgcode serves pretty well. I'm trying to convert what I can over...

A simple format like this is nothing new, really. They've been used for lists of objects and rotors for decades. RLE is not a particularly compact way to specify bitpatterns, which is why when I was searching for objects, I came up with my "SOF" format. The apgcode is even more compact. (In SOF, a f...

There are a number of possible casings for that rotor. Which one of these were you expecting? x=103, y=9, rule = B3/S23 3o9b2o10b2o3b2o5b2o10b2ob2o7b2ob2obo5b2ob2obo5b2ob2o2b2o3b2ob2obo$12bobo9b o4bo6bobo3b2o4b2obobo6b2obob2o5b2obob2o5b2obo2bobo4bobob2o$25b3obo8bo2bob o7bo2bo8bo11bo11bo8bo2bo$14bobo...