Search found 7170 matches

by dvgrn
March 28th, 2011, 10:36 pm
Forum: Patterns
Topic: New small c/6 diagonal ship.
Replies: 8
Views: 8071

Re: New small c/6 diagonal ship.

Somewhat off-topic: When I was testing collisions between the new spaceship and gliders, a strange still life occurred as the spaceship decayed: ... The still life lasts indefinitely if the mirror-image glider is added as well, and the stabilization reaction produces an improbable number of output ...
by dvgrn
March 26th, 2011, 7:18 am
Forum: Patterns
Topic: A new way of constructing?
Replies: 6
Views: 11425

Re: A new way of constructing?

Finding a timer path: - In order to have full control over the gliders, gliders must be available on all 30 lines (any other line can be reached by delay in the streams). And in all 30 timings. (Any other timing can by reached by delay in the streams) So together there are 900 distict path's. I rer...
by dvgrn
March 25th, 2011, 10:13 pm
Forum: Patterns
Topic: A new way of constructing?
Replies: 6
Views: 11425

Re: A new way of constructing?

Here are the results of my life project I started 2 years ago. The original endgoal was to create a self replicating structure but since someone else was ahead of me I did not complete it (yet). I wanted to use an absolute minimum of structures. So I was interested if series of gliders fired at eac...
by dvgrn
March 8th, 2011, 9:05 am
Forum: Patterns
Topic: A potential diagonal lightspeed wire
Replies: 1
Views: 3093

Re: A potential diagonal lightspeed wire

Here, a glider triggers a stable, clean fuse which burns at the speed of light, and outputs another glider. In Golly's current pattern collection, Patterns/Life/Spaceships/adjustable-Corder-lineship.rle shows a similar lightspeed fuse. It isn't set up to produce an output glider, but it certainly c...
by dvgrn
February 9th, 2011, 6:07 am
Forum: General Discussion
Topic: Methuselah Definition
Replies: 50
Views: 45361

Re: Methuselah Definition

If we're going to include puffers as stable, we may as well try to define "regularize." [A pattern with two interacting puffer trains] could appear naturally, even if we haven't found it yet. I'd still say it is somewhat regularized eventually (even though the sequence of gliders is aperiodic), but...
by dvgrn
February 8th, 2011, 9:25 pm
Forum: General Discussion
Topic: Methuselah Definition
Replies: 50
Views: 45361

Re: Methuselah Definition

I believe that a pattern is fully stabilized when the remaining debris reaches a state of oscillation, including escaping gliders and other escaping spaceships(implying that gliders don't collide with any other objects). Or escaping puffers, I would say. For example, switch engines occur fairly reg...
by dvgrn
February 8th, 2011, 12:00 pm
Forum: General Discussion
Topic: Methuselah Definition
Replies: 50
Views: 45361

Re: Methuselah Definition

I'm pretty sure that stabilization implies a cyclic population. Can you find a source to support that? A reasonable source is the Life Lexicon definition of "methuselah", which lists seven example methuselahs, none of which produce final patterns that are stable in the sense of being period 1. They...
by dvgrn
January 4th, 2011, 3:51 am
Forum: Patterns
Topic: Votes for Pattern of the Year 2010
Replies: 23
Views: 21180

Re: Votes for Pattern of the Year 2010

07,03,08
by dvgrn
December 29th, 2010, 2:39 pm
Forum: Patterns
Topic: Methuselah Lidka improved
Replies: 8
Views: 6509

Re: Methuselah Lidka improved

calcyman wrote:As for the longest-lived x-cell methuselahs in a x*x box, I believe the records are:

1 1
2 1
3 2
4 10
...
o$obo$o! lasts for 11 ticks, I believe; the classic T-tetromino lasts 9. Is there a four-cell traffic-light predecessor that lasts exactly 10 generations?
by dvgrn
November 18th, 2010, 10:52 am
Forum: Patterns
Topic: Help with sliding blocks.....
Replies: 4
Views: 3403

Re: Help with sliding blocks.....

You can pull a block in with two gliders like this: ... You can push a block out with three gliders like this: ... Early this year Calcyman put together a binary-counter pattern using these reactions attached to an implementation of a finite-state machine: http://calcyman.awardspace.co.uk/life-mass...
by dvgrn
November 3rd, 2010, 12:42 pm
Forum: Patterns
Topic: New Stable HWSS -> G Converter
Replies: 2
Views: 3395

Re: New Stable HWSS -> G Converter

My latest invention: another stable HWSS -> G Converter! x = 619, y = 493, rule = LifeHistory Yow! Now I understand why "Extreme" is part of your name... do you have a specific purpose in mind for this particular glider output location? You can get lots more gliders out of all those F171s, if you n...
by dvgrn
October 9th, 2010, 11:53 am
Forum: General Discussion
Topic: Spider synthesis
Replies: 7
Views: 5450

Re: Spider synthesis

The only spaceships in Life which have constructions are the standard spaceships (i.e the glider, LWSS, MWSS & HWSS, but then you knew that), some Corderships and a 2c/5 spaceship discovered by Tim Coe which proved tractable because its central components could be produced by perturbing constructib...
by dvgrn
September 28th, 2010, 1:47 pm
Forum: Bugs & Errors
Topic: Possible Issue with Code Tag Select All Button
Replies: 12
Views: 10000

Re: Possible Issue with Code Tag Select All Button

I haven't tested the script yet, but as Python's strip function removes all whitespace from the front and back of the string (including /n, /r/n, and /r, the three common line breaks) it should work fine on all platforms. Well, but the script's first act is to split the input on '\n'. I've occasion...
by dvgrn
September 28th, 2010, 1:05 pm
Forum: Bugs & Errors
Topic: Possible Issue with Code Tag Select All Button
Replies: 12
Views: 10000

Re: Possible Issue with Code Tag Select All Button

The problem seems to occur only on Firefox -- neither IE7 nor Google Chrome seem to have any trouble with copied Select-All RLE from the forums. Can someone confirm that the script works OK on Mac and Linux systems? Sometimes problems show up because 'standard' newline characters in text data are di...
by dvgrn
September 26th, 2010, 10:46 pm
Forum: Scripts
Topic: Golly scripts
Replies: 275
Views: 238188

Re: Golly scripts

How should I get started? Is there anything special I need to know? (Like what weird coordinate system Golly must use since it's an infinite plane?) Read through Help > Python Scripting carefully before you start writing your scripts -- especially the Cell Lists section toward the bottom, explainin...
by dvgrn
September 17th, 2010, 6:02 pm
Forum: Patterns
Topic: Thread For Your Accidental Discoveries
Replies: 1701
Views: 1186429

Re: Thread For Your Accidental Discoveries

x = 164, y = 167, rule = B3/S23 [16 gliders] That looks a little more complicated than it needs to be. You can sneak in and reproduce the key still lifes from a later stage of the reaction, which lets you skip building the Herschel entirely. Saves seven gliders and a couple hundred ticks: #C blocke...
by dvgrn
September 17th, 2010, 8:08 am
Forum: Patterns
Topic: Synthesis of a Herschel
Replies: 2
Views: 2571

Re: Synthesis of a Herschel

Or if you don't mind a catalyzed synthesis, there are lots more possibilities with two or three gliders. A two-glider B-heptomino can be converted to a clean Herschel by a snake-block combination. Or two gliders can produce a boat or beehive or other still life, and one more glider converts that int...
by dvgrn
September 16th, 2010, 8:10 am
Forum: Patterns
Topic: Herschels
Replies: 8
Views: 5422

Re: Herschels

Dave, I really think we should update the stuff in LifeHistoryRules.zip so that it matches Golly's supplied LifeHistory rule. And I promised to do that back in May, too -- my apologies. I don't have much time left before this weekend, but I'll take care of the problem then. As it happens, I had to ...
by dvgrn
September 15th, 2010, 5:15 am
Forum: Patterns
Topic: Herschels
Replies: 8
Views: 5422

Re: Herschels

...I see eight billion .rle's in Hersrch. Could you please paste the basic conduits into this thread for me? What! And give away all the carefully guarded secrets of the Herschel Plumbers' Guild -- just like that? ... Well, okay -- but only because you said "please". The following is a fairly compl...
by dvgrn
September 14th, 2010, 7:56 am
Forum: Patterns
Topic: Herschels
Replies: 8
Views: 5422

Re: Herschels

...how would I make a Herschel-to LWSS converter that works via synthesis, not some fancy conduit? Does it have to be all gliders, or does a ship plus two gliders count as a "synthesis"? How about a Herschel plus one glider? The following would make a somewhat simpler practice problem than a 3-glid...
by dvgrn
September 10th, 2010, 7:53 am
Forum: Patterns
Topic: super breeders?
Replies: 42
Views: 36414

Re: super breeders?

That's a nice enough diagram but it's not a Geminoid constructor! Yes, I was thinking of writing in with the same objection. If "a glider in one line would have to be reflected while a glider in another line would have to cause the reflector to translate itself", then the "reflector" starts to look...
by dvgrn
September 6th, 2010, 10:31 pm
Forum: Patterns
Topic: Thread For Your Accidental Discoveries
Replies: 1701
Views: 1186429

Re: Thread For Your Accidental Discoveries

... probably in soup-census or Glue results. Slightly off-topic, but is any version of the 'glue' software publicly available to download? (I have a feeling I asked before on this forum ages ago when there were only 5 or so members, but I don't think I got a reply.) Well, I put the pieces of my old...
by dvgrn
September 6th, 2010, 3:05 pm
Forum: Patterns
Topic: Thread For Your Accidental Discoveries
Replies: 1701
Views: 1186429

Re: Thread For Your Accidental Discoveries

You're making this task unnecessarily complex. Here's a simple 6-glider synthesis of the 29-cell still life... Well, I did say somebody would be able to do better. Very nice! I didn't look very hard for replacements for the 9-cell active object that I went on about, because I'm actually more intere...
by dvgrn
September 6th, 2010, 2:32 pm
Forum: Patterns
Topic: Thread For Your Accidental Discoveries
Replies: 1701
Views: 1186429

Re: Thread For Your Accidental Discoveries

Small soup that produces a strange 29-cell still life...: That is indeed a rather unusual object to find floating in one's soup. Fairly quick spontaneous generation, too -- it should allow a cheaper synthesis than a standard incremental process would. I don't know for sure whether a "natural" recip...
by dvgrn
August 25th, 2010, 8:44 pm
Forum: Scripts
Topic: Adapting Gencols
Replies: 17
Views: 17908

Re: Ideas for distributed searches

If I may interject at this point, ptbsearch is another depth-first tree search. By using a pre- and post-processor, ptbsearch can be engineered into a generic search program for finding stable reflectors. And since Dave Greene has offered $100 of prizes for compact stable reflectors, it may be wort...