Search found 157 matches

by hkoenig
January 11th, 2021, 11:59 am
Forum: General Discussion
Topic: Catagolue Discussion Thread
Replies: 386
Views: 141874

Re: Catagolue Discussion Thread

How would you efficiently determine whether the ash of a soup contains a large/rare still-life? How is it currently done? I'd legitimately like to know. I've been rewriting a bunch of my Life tools, and one of the features I've lost is the ability to detect escaping Gliders. (The old way was arbitr...
by hkoenig
December 16th, 2020, 2:30 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2984
Views: 1171526

Re: Thread For Your Useless Discoveries

Here's a reduction, if anyone wants to find whether it's been seen before
It's known. No other details.
by hkoenig
December 14th, 2020, 7:01 pm
Forum: General Discussion
Topic: Golly suggestions
Replies: 269
Views: 122160

Re: Golly suggestions

We need to create a text file that includes all the oscillators we want as separate RLEs. It's called a database, and it's not hard to create one. I use SQLite which is a part of the MacOS. I've set up and use database that is single common file which has several tables. The primary table is for ob...
by hkoenig
December 5th, 2020, 3:37 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2984
Views: 1171526

Re: Thread For Your Useless Discoveries

Which appears to be a relative to the Snark x=23, y=49 13bo$11b3o$bo8bo$2bo7b2o$3o2$18b2ob2o$19bob2o$19bo$11b2o4b3o$11b2o3bo3b2o$16b 4o2bo$2b2o15bob2o$bobo12b3o2bo$bo13bo5bo$2o14b5o$18bo16$21b2o$8b2o9bo2bo$7b o2bo7bob2o$bo6bobo7bobo$2bo6bo7b2o2bo$3o16bobo$17b2obo$18bo$16bobo$16b2o$11b 2o$11b2o2$2b2o...
by hkoenig
November 25th, 2020, 11:48 am
Forum: General Discussion
Topic: Clearing pattern
Replies: 12
Views: 592

Re: Clearing pattern

You might also want to consider the that at a high level this question was posed in LifeLine #7 as "The Irresistible Force Problem: ... This is easily proved impossible -- just shoot two at each other."
by hkoenig
October 3rd, 2020, 12:52 pm
Forum: Patterns
Topic: Soup search results
Replies: 2320
Views: 1482418

Re: Soup search results

I'd certainly like to try and reuse the bit of apgsearch that separates patterns into their components. I'd also be interesting in knowing how apgsearch finds escaping spaceships. Where is all that in the source code? Is there any high level description of the processes involved? I'm in the process...
by hkoenig
October 3rd, 2020, 10:47 am
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2984
Views: 1171526

Re: Thread For Your Useless Discoveries

Bitfields-- if I remember correctly, they were never defined properly (at least as of 2005 or so), so they were compiler implementation dependent. The standard didn't define where the empty space would be if the bitfields didn't conform to byte or word boundaries. (You have a 3 bit field, and a two ...
by hkoenig
October 2nd, 2020, 9:50 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2984
Views: 1171526

Re: Thread For Your Useless Discoveries

re: Microsoft development practices--That matches my experience. Starting in the last century I did contracting at Microsoft, off and on, for about ten years, converting low level Windows code (registry management, video codecs, DRM, Silverlight, etc.) to run in the MacOS environment. Nobody wrote u...
by hkoenig
September 24th, 2020, 1:00 pm
Forum: Patterns
Topic: 1 Glider per Bit Oscillator Syntheses
Replies: 14
Views: 1300

Re: 1 Glider per Bit Oscillator Syntheses

Here's another 14 Glider construction for [16P2.58] using an intermediate 12-bit stable object [12.76]-- x=54, y=48 50bo$49bo$49b3o$47bo$45bobo$46b2o3$51bo$49bobo$50b2o2$51b3o$51bo$52bo6$13b o$8bo3bo37b2o$2bo6bo2b3o33bo2bo$obo4b3o38b2o$b2o43b2o$15b2o27bo2bo$8b3o4b obo26b2o$3b3o2bo6bo$5bo3bo$4bo4$43b...
by hkoenig
September 22nd, 2020, 7:09 pm
Forum: Patterns
Topic: Randomly enumerating glider syntheses
Replies: 43
Views: 10793

Re: Randomly enumerating glider syntheses

Oh, well. I must've missed the recall notice on that one. It's gone now...
by hkoenig
September 22nd, 2020, 11:11 am
Forum: Patterns
Topic: Randomly enumerating glider syntheses
Replies: 43
Views: 10793

Re: Randomly enumerating glider syntheses

Your latest list shows this object ([16.2808]) with a seven Glider construction. It is most likely known, but I've got a six in my database-- x=120, y=86 5bo113bo$6b2o109b2o$5b2o111b2o25$89bo$88bo$88b3o3$24bo$25b2o$24b2o8bo$35b o41bo$33b3o42b2o$77b2o2$31b2o54b2o$32b2o52b2o$31bo39bobo14bo$72b2o$29b3o...
by hkoenig
September 14th, 2020, 8:56 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2144
Views: 1061089

Re: Thread for your unsure discoveries

you're bound to find something new eventually if you do so The reply was to Niemiec, not you. Not sure if you intended it, but there's no need to be condescending. Especially since I've occasionally been contributing to the Game of Life discoveries for decades more than you have. As for this intera...
by hkoenig
September 14th, 2020, 7:59 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2144
Views: 1061089

Re: Thread for your unsure discoveries

Don't forget this one. I think it'd qualify.

Code: Select all

x=7, y=19
2bo$obo$b2o2$3bo$3bobo$3b2o6$4b2o$4bobo$4bo2$2b2o$bobo$3bo!
by hkoenig
August 29th, 2020, 11:05 am
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1624
Views: 714002

Re: Oscillator Discussion Thread

"Nobody really keeps track of period-3 oscillators." Not true. It's just that the loudest voices don't care about them, so people get shouted at when they are posted. Although I do agree that posting isolated lower period oscillators is bad form and a bit annoying, and it would be better to collect ...
by hkoenig
August 18th, 2020, 9:56 am
Forum: General Discussion
Topic: Physical implementation of Conways computer
Replies: 9
Views: 2175

Re: Physical implementation of Conways computer

Back in the late 1990s, I remember the Seattle airport had a Life display wall at one of the concourses as part of the various artworks. Display consisted of individual bulbs, maybe a 24x24 array. It would display patterns and run them for a while, about 1 gen per second. Not sure how they were gene...
by hkoenig
July 29th, 2020, 5:09 pm
Forum: The Sandbox
Topic: Glider Destruction Of Still Lives, Oscillators, Etc.
Replies: 58
Views: 4407

Re: Glider Destruction Of Still Lives, Oscillators, Etc.

What would actually be interesting are objects/patterns where it can be proved that they can't be eliminated by two or fewer Gliders. (Why two? I would suspect that most simple objects that can't be eliminated by one can be converted into an object, pattern or constellation that can. A non-simple ob...
by hkoenig
July 29th, 2020, 2:56 pm
Forum: The Sandbox
Topic: Glider Destruction Of Still Lives, Oscillators, Etc.
Replies: 58
Views: 4407

Re: Glider Destruction Of Still Lives, Oscillators, Etc.

There are only 42 possible collisions of a Glider and a 14-bit Barberpole. Done systemtically, it shouldn't take more than a few minutes to find this:

Code: Select all

x=14, y=15
2o$obo2$2bobo2$4bobo2$6bobo2$8bobo$9b2o2$11b3o$11bo$12bo!
by hkoenig
July 27th, 2020, 11:38 am
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2984
Views: 1171526

Re: Thread For Your Useless Discoveries

It should be trivial to search for every possible collision with an object and find the elimination reactions. One of my first Life related projects was cataloging all reactions, by hand, using punch cards, 45 years ago. (Was it really that long ago? Takes of shoes and socks ... Nope, 46 years. 1974...
by hkoenig
July 27th, 2020, 11:12 am
Forum: General Discussion
Topic: Golly 3.4
Replies: 24
Views: 3126

Re: Golly 3.4

The "Shrink Selection" item of the "Edit" menu. Unfortunately, the "Shrink and Fit" changes the scale, which can make the bits surprisingly large. I'll play around with the key-bindings. As for the pasteboard issue, I've got a hack that works, for now. Just need to know if things change so I can unh...
by hkoenig
July 22nd, 2020, 1:25 pm
Forum: General Discussion
Topic: Golly 3.3
Replies: 19
Views: 7004

Re: Golly 3.3

Comments on the Mac version-- I don't have a mouse wheel, I have a trackpad. I prefer the "two fingers scrolling" gesture that's part of the MacOS, but Golly replaces it with Evil Inc.'s "two fingers zoom" gesture. I can turn that off by disabling "mouse wheel action" in the preferences, but then no...
by hkoenig
July 18th, 2020, 6:04 pm
Forum: Patterns
Topic: Synthesis components
Replies: 55
Views: 15330

Re: Synthesis components

"Subcomponent" doesn't quite capture the idea that there is a dependency. Unless you add a qualifier, then it could either be "dependent" or "independent" ("standalone"?). In this case, that it requires a specific other component to work properly.
by hkoenig
July 18th, 2020, 5:03 pm
Forum: Patterns
Topic: Synthesis components
Replies: 55
Views: 15330

Re: Synthesis components

"what should we call reactions like this? "

Dependent component?
by hkoenig
June 8th, 2020, 1:44 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2344
Views: 670533

Re: Thread for basic questions

You are going to need to define what you mean by "distinct p2 rotor types".

I've cataloged 7811 distinct P2 rotors in sizes from 2 to 118 bits, although lots of them are a single object supporting disjoint rotors.
by hkoenig
June 7th, 2020, 12:01 pm
Forum: Patterns
Topic: Soup search results
Replies: 2320
Views: 1482418

Re: Soup search results

The problem with the comparison to "monkeys on typewriters" is that in a language, the probability of the next character is dependent on the previous characters. Individual characters are not independent events. For example, in English, "bv" less common than "ng", "qxr" is much less common than "the...
by hkoenig
June 6th, 2020, 2:29 pm
Forum: Patterns
Topic: The Hunting of the Elementary Conduits
Replies: 458
Views: 260165

Re: The Hunting of the Elementary Conduits

Just remember the words of Tom Lehrer--

"Smut, I'm glad to say,
is in the mind of the beholder.

When correctly viewed,
everything is lewd."