Search found 101 matches
- October 14th, 2014, 8:54 am
- Forum: Scripts
- Topic: Golly scripts
- Replies: 315
- Views: 297668
Re: Golly scripts
Here is Python code to test whether the current pattern is "quiescent": that is, consists solely of still lifes, oscillators, gliders and *WSSs, with the gliders and *WSSs being so placed that they will never interact with each other, or with any of the still lifes or oscillators. # Code to test whe...
- October 14th, 2014, 7:54 am
- Forum: Patterns
- Topic: Soup search results
- Replies: 2589
- Views: 1894814
Re: Soup search results
There are some where a switch engine gets started, but the exhauset kills it. In (I think) all the glider plus 3 objects I posted there, one of the objects is just a stabiliser.dvgrn wrote:I suppose there aren't any switch engines showing up with just two ash objects?
- October 14th, 2014, 7:50 am
- Forum: Patterns
- Topic: Soup search results
- Replies: 2589
- Views: 1894814
Re: Soup search results
Those I listed in the "Making switch-engines" thread are all I have, but I'll be using the new soup search program to look for more, and will post them if found.wildmyron wrote:Do you have an archive of this kind of reaction?
- October 13th, 2014, 12:56 pm
- Forum: General Discussion
- Topic: apgsearch: a high-performance soup searcher
- Replies: 147
- Views: 138254
Re: apgsearch: a high-performance soup searcher
Ah, I think the problem was not the OS, but the version of Golly - I was inadvertenly running on 2.4 It seems to be working fine on 2.7b2-win-x64.dvgrn wrote:What OS are you running Golly on?
- October 13th, 2014, 11:45 am
- Forum: General Discussion
- Topic: apgsearch: a high-performance soup searcher
- Replies: 147
- Views: 138254
Re: apgsearch: a high-performance soup searcher
Just trying apgsearch for the first time, and am getting a Python error. There's a stack ofcalls, but thew most recent is: line 1247 in census g.setrule("APG_CoalesceObjects_" + self.rg.alphanumeric) RuntimeError: Given rule is not valid in any algorithm. I have Python 2.7 installed. I've selected B...
- October 13th, 2014, 10:11 am
- Forum: Patterns
- Topic: Soup search results
- Replies: 2589
- Views: 1894814
Re: Soup search results
They are to me!! Thanks.wildmyron wrote:But I have no idea if they are of any interest.
- October 9th, 2014, 10:48 am
- Forum: Patterns
- Topic: Soup search results
- Replies: 2589
- Views: 1894814
Re: Soup search results
Lewis wrote: 20-cell predecessor (can maybe be reduced): Yes it can, to 16 cells: x = 16, y = 16, rule = B3/S23 12bo$12b2o$12bo2bo2$13bobo$14bo7$3o$bo2bo$5bo$2bobo! In my naming schema for switch-engine pairs, this is NHAA. Your third pattern also has a 16-cell predecessor, which I call NH00: x = 15...
- October 3rd, 2014, 5:08 am
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
Does the bolded bit imply you've surveyed all possible ways that an R-pentomino or a glider can collide with 2 blonks? With two widely separated blonks, yes. So, the r-pentomino runs to its conclusion, spitting out 3 salvos (of 1, 2 and 3 gliders (the 1-salvo - the single glider - means we need not...
- July 15th, 2014, 4:29 pm
- Forum: Patterns
- Topic: Half-bakery reaction with glider
- Replies: 191
- Views: 250687
Re: Half-bakery reaction with glider
Many congratulations to all concerned! The catalog of known ship velocities is getting quite complicated.
- July 9th, 2014, 3:59 pm
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
those to the north-west, negative This should be "those to the north-east, negative". While the reduction from 49 to 43 blonks isn't large, it is the first improvement since January 2001. Almost certainly, there are shorter sequences that will produce this slow salvo using the same basic strategy, ...
- July 9th, 2014, 2:45 pm
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
It looks as if it ought to be simpler to avoid synchronization problems and do everything with a slow salvo -- but I'm sure there are complications there as well. There are indeed! The more members a salvo requires, even if forward spacings are not crucial, the less likely it is that a single colli...
- July 3rd, 2014, 5:51 pm
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
Here's the order-49 SCS (standard collision sequence). It doesn't use a slow salvo, but the synchonised pair plunging into a settled pi which I posted earlier - but setting this up is not easy: x = 52541, y = 52489, rule = S23/B3 o$o$o4648$4690b3o1141$5837bo$5836b3o$5836bo941$6825boo$6825boo769$ 762...
- July 3rd, 2014, 3:23 pm
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
of course, any such constructed salvo will have specific forward spacings between the gliders Actually, it may do or may not, depending on how it's constructed! I notice that the 7-salvo you posted has the advantage that there are no parity constraints on the forward gaps between gliders: I'll take...
- July 3rd, 2014, 10:29 am
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
Excellent! It may not be entirely clear to everyone why your best initial target is a blonk (block or blinker) rather than, say, a tub or a beehive. In the context of a Sparse Life early universe, blocks and blinkers will appear overwhelmingly often compared to any other still life Yes, I decided no...
- July 3rd, 2014, 3:57 am
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
Thanks Dave. I agree that 8 is unlikely to be minimal, and the strategy you suggest is reasonable - I've actually kind of followed it rather unsystematically for the first couple of gliders. Here's the biggest mess you can make with a slow 2-salvo into a block or blinker: x = 1049, y = 1103, rule = ...
- July 2nd, 2014, 7:29 pm
- Forum: Patterns
- Topic: c/4 diagonal puffers
- Replies: 2
- Views: 3336
Re: c/4 diagonal puffers
Thanks - that's very helpful!
- July 2nd, 2014, 11:36 am
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Re: Making switch-engines
Here's a just-discovered 8-glider slow salvo creating a block-layer from a blinker.
x = 780, y = 682, rule = B3/S23
bo$2bo$3o19$21bo$22bo$20b3o34$36bo$37bo$35b3o98$133bobo$134b2o$134bo8$
151bo$152bo$150b3o425$675bo$676bo$674b3o62$756bo$757b2o$756b2o15$768bo
$769bo$767b3o4$777b3o!
x = 780, y = 682, rule = B3/S23
bo$2bo$3o19$21bo$22bo$20b3o34$36bo$37bo$35b3o98$133bobo$134b2o$134bo8$
151bo$152bo$150b3o425$675bo$676bo$674b3o62$756bo$757b2o$756b2o15$768bo
$769bo$767b3o4$777b3o!
- July 2nd, 2014, 8:00 am
- Forum: Patterns
- Topic: c/4 diagonal puffers
- Replies: 2
- Views: 3336
c/4 diagonal puffers
Does anyone have a collection of c/4 diagonal puffers? The only ones I have are based on this one of Jason Summers: x = 897, y = 897, rule = B3/S23 18boo$17boo$19bo$21boo$20bo$$19bobbo$11boo5boo$10boo5bo$12bo4bobo$8bo 5boobbo$7boo5boo$7bobo8bo26b3o$17bobo25bobb3o$10boo6bobo25bobo$10boo7b obo29bo$20b...
- July 2nd, 2014, 7:53 am
- Forum: Patterns
- Topic: Making switch-engines
- Replies: 45
- Views: 77279
Making switch-engines
I'm interested in minimal ways (in various senses) to make switch-engines. I don't care how messy the result is, as my main interest in this is in its implications for Sparse Life (infinite, random, arbitrarily low-density Game of Life fields). This post includes some of the results I know of; I'd b...
- March 11th, 2014, 7:52 am
- Forum: General Discussion
- Topic: Puffer Train Debris Synthesization Rake
- Replies: 35
- Views: 23752
Re: Puffer Train Debris Synthesization Rake
I think I can safely say I'm not!
Whether I should be, of course, is another matter.
Whether I should be, of course, is another matter.
- February 27th, 2014, 10:04 am
- Forum: General Discussion
- Topic: Puffer Train Debris Synthesization Rake
- Replies: 35
- Views: 23752
Re: Puffer Train Debris Synthesization Rake
Hi, I am working toward an update of the quasi-blog Dave Greene mentioned - on it, you'll find a bunch of patterns which grow in complexity for as long as I have been able to follow them, starting with either 50 cells (two modified Gosper puffers running perpendicularly) or 32 cells (two pairs of sw...
- January 27th, 2014, 4:51 pm
- Forum: The Sandbox
- Topic: how and when you discovered the game of life?
- Replies: 65
- Views: 57764
Re: how and when you discovered the game of life?
I came across first it in Martin Gardner's first Scientific American article on it, in October 1970, when I was 16. I first explored it on graph paper (we didn't 'ave these 'ere new-fangled home compyooters in my young day), then some years later using an incredibly slow program I wrote in a complet...
- January 27th, 2014, 4:39 pm
- Forum: General Discussion
- Topic: Golly 2.6 has been released
- Replies: 23
- Views: 23429
Re: Golly 2.6 has been released
This is not strictly about version 2.6, which I haven't yet downloaded, but about command-line use of bgolly, on a 64-bit windows 7 platform. I am running patterns where each power of 2 generally step takes longer than the last, as novelty keeps arising, so I just run them until the time taken is to...
- January 27th, 2014, 4:28 pm
- Forum: General Discussion
- Topic: Life inside the game of life
- Replies: 11
- Views: 10672
Re: Life inside the game of life
One of the points I raise in the book chapter Dave Greene links to above (in his message of 13 October) is that living replicators are very different from those that occur in Game of Life or similar CAs, because they don't replicate in an empty or homogeneous environment (which the random soup repli...
- January 27th, 2014, 4:15 pm
- Forum: General Discussion
- Topic: Let's get philosophical.
- Replies: 6
- Views: 5753
Re: Let's get philosophical.
The philosopher Dan Dennett makes use of Game of Life in at least two of his books: Darwin's Dangerous Idea and Freedom Evolves . Both highly recommended. An interesting science fiction use of CA (not the Game of Life specifically) occurs in The Gameplayers of Zan by M.A. Foster. The Ler, a new kind...