Search found 1196 matches

by mniemiec
October 24th, 2020, 4:11 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2112
Views: 616146

Re: Thread for basic questions

Has anyone conjectured that it is possible to make any finite pattern in ConwayLife by starting with some arrangement of four cells then doing nothing else besides removing cells in successive generations? That conjecture seems likely to be true to me. Of course, the simplest (and least interesting...
by mniemiec
October 24th, 2020, 11:16 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2112
Views: 616146

Re: Thread for basic questions

Do you mean that in the case of yl60 apgsearch recognized the wickstretcher and the oscillator as a whole? I feel like blaming the object separation then, since the mechanism does not misidentify a block-laying switch engine with a pentadecathlon (say) in the ash behind. I'm not sure. Object separa...
by mniemiec
October 24th, 2020, 7:08 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2112
Views: 616146

Re: Thread for basic questions

The explanation made me puzzled upon checking my search results in Glimmering Garden ikpx2_stdin census (yes, LaundryPizza03, that unknown user happens to be myself). Consisting of a p240 cloverleaf and a c/4d tubstretcher, this pattern is classified as yl60_1_30: ... Whereas this is a yl240_1_120:...
by mniemiec
October 21st, 2020, 6:03 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2631
Views: 1096807

Re: Thread For Your Useless Discoveries

Huh I didn't know there was an even more useless one, otherwise yes I would've put it there in a heartbeat. Also yeah it is mostly pseudo, but there are some tied and welded parts "Useless Discoveries" is for discoveries that have no practical purpose (e.g. because they have some flaw that makes it...
by mniemiec
October 21st, 2020, 12:34 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2032
Views: 1008013

Re: Thread for your unsure discoveries

So I recently learned that the Schick Engine tagalong for xWSSes is also a puffer engine having to do with xWSSes like the Coe Ship. I basically stuck the two together by a LWSS that can share and it made an interesting puffer. I don't know if I'm the first one to discover this, because I checked t...
by mniemiec
October 18th, 2020, 8:15 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2112
Views: 616146

Re: Thread for basic questions

Should these be called Muttering Moats? Three Muttering Moats 1. No (it's a troll), 2. Yes, 3. Yes Is there a pentadecathlon predecessor that evolves into another pentadecathlon predecessor? Are there any Unit Non Totalistic Cellular Automaton Cells in Life? Are Unit Wireworld Cells Possible? 1. Ye...
by mniemiec
October 17th, 2020, 3:22 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2032
Views: 1008013

Re: Thread for your unsure discoveries

2 Pentadecathlon + 4 Glider = Pentadecathlon + 2 blocks. ... There also seem to be a glider reaction that creates a phi at the front of the pentadecathlon and removes the phi at the back. This may allow the pentadecathlon to be used as a tagalong. That isn't really "two pentadecathlons"; a pentadec...
by mniemiec
October 16th, 2020, 2:45 pm
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2112
Views: 616146

Re: Thread for basic questions

You don't even need a block; an approaching glider can do just as well.

Code: Select all

x = 32, y = 9, rule = B3/S23
10bo$9bo$boobbo3b3o9boobbo4bo$obbo16bobbo5boo$obbo16bobbo5bobo$booboo
15booboo$3bobbo16bobbo$3bobbo16bobbo$4boo18boo!
by mniemiec
October 15th, 2020, 1:31 am
Forum: Patterns
Topic: Soup search results
Replies: 2279
Views: 1425348

Re: Soup search results

EDIT: Well, what do you know, as I was writing up this post, the searcher found a second soup that yields the same agar. Since the first one was found after about 500 million soups, the odds against this seem astronomical. Maybe my RNG isn't as random as I'd like. Maybe not _that_ astronomical. Run...
by mniemiec
October 7th, 2020, 12:32 pm
Forum: Patterns
Topic: Synthesising Oscillators
Replies: 1084
Views: 831632

Re: Synthesising Oscillators

I found this final step for 128P10.2 but being a synthesis novice I could not synthesize the constellation (the problem is the eater-on-eaters, I couldn't find a way to synthesize them with the core blocks in place): ... Can be reduced to this, which isn't quite simple enough to build with the tech...
by mniemiec
October 5th, 2020, 8:19 pm
Forum: Patterns
Topic: Soup search results
Replies: 2279
Views: 1425348

Re: Soup search results

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 not sure how apgsearch does it, but it's possible to do this robustly. For example, if you assume a Life-like rule (e....
by mniemiec
October 3rd, 2020, 3:24 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2631
Views: 1096807

Re: Thread For Your Useless Discoveries

Bitfields... The problem wasn't bit fields; it was unions. Using bit fields alone should have worked fine, as a means of packing data in an abstract way, although I've almost never used them, nor felt the need to do so. The language didn't specify how padding worked in general, even without bit-fie...
by mniemiec
October 2nd, 2020, 8:54 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2631
Views: 1096807

Re: Thread For Your Useless Discoveries

I guess that it's this type of random then. I once read a story about the development of Microsoft Word. One engineer was tasked with writing a function to return the height in pixels of a line of text. He wrote the function to just return an arbitrary constant value. This was incorrect, but that w...
by mniemiec
October 2nd, 2020, 5:50 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2631
Views: 1096807

Re: Thread For Your Useless Discoveries

ENORMOUS_NAME wrote:
October 2nd, 2020, 1:50 pm
Pulsar is made, destroyed, then two are made. ...
Note that the two final pulsars are made from a common collision of two nearby honeyfarms. While the first pulsar is just about to complete, a second pulsar is forming from two similar honeyfarms, but is destroyed early.
by mniemiec
October 1st, 2020, 10:08 am
Forum: Other Cellular Automata
Topic: LeapLife (B2n3/S23-q)
Replies: 796
Views: 72059

Re: LeapLife (B2n3/S23-q)

8-glider soup-based synthesis of a P3 jam-like oscillator that turned up in catagolue: x = 128, y = 82, rule = B2n3/S23-q 12bo$10bobo3bo$11booboo$15boo65bo$82bo$82bo40boo$89bo32bobbo$89bobo30b obobo$89boo32bobbo$obo90boo$boo70boo7boo9bobo28bobbo$bo71boo7bobo8bo 32boo$82bo$boo$obo$bbo64$17b3o$19bo$18...
by mniemiec
September 29th, 2020, 6:56 am
Forum: Patterns
Topic: Oscillator Discussion Thread
Replies: 1380
Views: 669288

Re: Oscillator Discussion Thread

wwei23 wrote:
September 27th, 2020, 9:56 pm
EDIT: Almost P3: ...
Entity Valkyrie 2 wrote:
September 29th, 2020, 5:42 am
Some solutions: ...
Nice! However, the top three on the right don't work as shown.
by mniemiec
September 24th, 2020, 4:52 pm
Forum: Patterns
Topic: Thread For Your Useless Discoveries
Replies: 2631
Views: 1096807

Re: Thread For Your Useless Discoveries

I don't see the difference between this thread and the "Absolutely Useless Patterns Not Worthy Of Patterns Thread" thread. Could you clarify for me? Thanks This thread is for patterns that are technically useless (because they don't quite work, and can't be salvaged, e.g. oscillators that work exce...
by mniemiec
September 23rd, 2020, 1:04 am
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2032
Views: 1008013

Re: Thread for your unsure discoveries

I wonder if this diagonally-symmetric explosion can improve the syntheses of a few diagonally-symmetric objects: ... I had found several 4- and 5-glider syntheses of this constellation (that I called W) years ago, and later, Jason Summers posted 27 3-glider ones, but yours seems to be new. I'm not ...
by mniemiec
September 20th, 2020, 6:13 am
Forum: Other Cellular Automata
Topic: IntegerLife (R1,I8,S2-3,B3,NM)
Replies: 9
Views: 496

Re: IntegerLife (R1,I8,S2-3,B3,NM)

Yellow (state 7) behaves exactly like standard Life. IntegerLife actually appears to be more stable than standard Life, since the extra states make it more similar to Highlife and Flock and eliminates many of Life's methuselahs. ... State 5 seems to be life as well ... 4 too ... Actually, the way I...
by mniemiec
September 19th, 2020, 6:56 pm
Forum: Other Cellular Automata
Topic: IntegerLife (R1,I8,S2-3,B3,NM)
Replies: 9
Views: 496

Re: IntegerLife (R1,I8,S2-3,B3,NM)

I'll also add in the condition that if a cell hits the max state (in this case 8, it dies) because I don't feel like waiting for an eternal for a 255 state ruletree to compile. I'm a bit more of a purist; in my own implentation, I supported 255 living states, and the program automatically halts if ...
by mniemiec
September 17th, 2020, 4:29 pm
Forum: Patterns
Topic: Soup search results
Replies: 2279
Views: 1425348

Re: Soup search results

I think this P4 needs a name, since it is an edgy domino sparker, and it is statorless. .. Mark Niemiec's database has it as " 24-bit P4 #1 ", no synthesis; pentadecathlon.com calls it 24P4.1 . Catagolue has one C2_4 soup for xp4_g880anziaw5kze5011 but the oscillator shows up early, so converting t...
by mniemiec
September 15th, 2020, 9:36 am
Forum: Patterns
Topic: Soup search results
Replies: 2279
Views: 1425348

Re: Soup search results

I believe that that's the mod, not the period. Wiki says that block laying switch engine is period 288. Edit: Or maybe that's the period of the population growth, I don't know. Yes. When it finds growing patterns, apgsearch ignores the pattern image itself, and only concerns itself with the populat...
by mniemiec
September 14th, 2020, 9:02 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2032
Views: 1008013

Re: Thread for your unsure discoveries

hkoenig wrote:
September 14th, 2020, 7:59 pm
Don't forget this one. I think it'd qualify
Oh, right! I had forgotten about that one. Peter Raynham found that one some time in the 1970's, I think.
by mniemiec
September 14th, 2020, 6:32 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 2032
Views: 1008013

Re: Thread for your unsure discoveries

Two pi collision (one of which is ahead by one generation) produces a cis-mirrored worm: ... That is probably the most common way that still-life comes up. I remember finding this reaction some time back in the '90s or '80s. Other than the spark coil and two dead spark coil variants, this is the on...
by mniemiec
September 10th, 2020, 2:44 am
Forum: General Discussion
Topic: Thread for basic questions
Replies: 2112
Views: 616146

Re: Thread for basic questions

EDIT 3: Could a cubic sawtooth exist? It wouldn't need to rely on a cubic growth, it could be something that grew linearly to an increasing cubic limit then shrank back to the initial population. 1. A cubic limit is impossible for any rules excluding B0. Assume you have some pattern P that exists w...