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18 months on

I and several computers are increasingly preoccupied surveying similar "growth shoulder" mechanisms found across some but far from all rules of the form WMPVN-45678x/459/n, where x indicates the presence or absence of c (12). It is still too early to try to report anything comprehensive, b...
by ynotds
August 25th, 2012, 12:14 am
 
Forum: Other Cellular Automata
Topic: Adding a dimension to "growing spaceship"/puffer
Replies: 1
Views: 4158

Re: B345/S23/C4

Re the "unrelated orthogonal growing spaceship" in C5 there are also some easily found small seeds which produce a fractal explosion thereof, including: x = 10, y = 9, rule = 02378/345/5 3.A$2.3A$.2A2CA$.A2.CBA$AD2.ABA$AC2A.3A$.2ACD2.2A$4.D2.2AC$...
by ynotds
January 11th, 2012, 4:15 am
 
Forum: Other Cellular Automata
Topic: B345/S23/C4
Replies: 15
Views: 6616

Rotating gun (WMPVN 45678/459/13)

I'm sure they are common enough in Star Wars and similar rules, but it had reached the point a month or so ago, I almost posted here asking if anybody had found a rotating gun in a B3 rule because it was the one relatively simple possibility I hadn't found in two years looking mostly at Generations ...
by ynotds
October 18th, 2011, 5:26 am
 
Forum: Other Cellular Automata
Topic: Rotating gun (WMPVN 45678/459/13)
Replies: 1
Views: 1472

Reprocessors and a constructor (WMPVN)

Slowly accumulating more systematic coverage of a target millionth part the WMPVN rule space, for the past couple of months mostly focused on WMPVN-45678b_45abx_20-31 (x indicates presence or absence of c) which looks like a representative subset to do manageable comparisons with, and finding a dive...
by ynotds
September 6th, 2011, 12:07 pm
 
Forum: Other Cellular Automata
Topic: Reprocessors and a constructor (WMPVN)
Replies: 0
Views: 1421

Re: Experimenting with an intermediate neighbourhood

I'm having trouble using the Perl script that makes these intermediate rules. I keep getting this error message: "max states is not a positive integer at [path]\makeWMPVNruletrees.pl line 42" That message is triggered by an early test for validity of the parameter string, so it is possibl...
by ynotds
June 20th, 2011, 9:16 am
 
Forum: Other Cellular Automata
Topic: Experimenting with an intermediate neighbourhood
Replies: 11
Views: 9248

612,750 iteration Methuselah in Generations 3458/38/6

#CXRLE Pos=0,-6
x = 5, y = 6, rule = 3458/38/6
.CB$BADAD$.C2AE$.A.A$.2A$.2A!
Minimum seed. Ran 75 minutes at 8^1 on my older 24" iMac.
by ynotds
June 11th, 2011, 5:30 am
 
Forum: Other Cellular Automata
Topic: 612,750 iteration Methuselah in Generations 3458/38/6
Replies: 0
Views: 1471

Signals on double blocked track found in WMPVN-45678_45bc_20

http://www.wmpvn.com/45678xx_45xxxx/_bc_20/images/signals.png This is posted for the benefit of those who might want to try using it for signal processing. The signals and blocking operate on double and single tracks across a range of similar rules, but I can't give priority to iden...
by ynotds
April 24th, 2011, 7:10 am
 
Forum: Other Cellular Automata
Topic: Signals on double blocked track found in WMPVN-45678_45bc_20
Replies: 0
Views: 1471

Re: True knight trail

(A) rather interesting ship found on 45678_45b_8: I'd only just found as analogous ship in _28 but a version with a persistent asymmetry in its trailing debris which I thought hinted at the existence of a symmetric version like you found. And I've since only done a minimal survey which shows that t...
by ynotds
April 23rd, 2011, 4:52 pm
 
Forum: Other Cellular Automata
Topic: True knight trail
Replies: 6
Views: 4155

And now a true knight ship in WMPVN-45678_45xbx_7+

knightship.zip
Open in Golly 2.2
(992 Bytes) Downloaded 272 times
The attached seed is a p2x1y5t ship in born 45b, 45bc, 45ab, 45abc for all state counts greater than 7. An analogous p4x2y10t form works for state count 7.
by ynotds
April 23rd, 2011, 9:15 am
 
Forum: Other Cellular Automata
Topic: True knight trail
Replies: 6
Views: 4155

Re: Smallest slowest spaceship?

I seem to recall that this doesn't actually asymptotically approximate a perfect circle In the very long term you must get c/2 common spaceship collisions in the diagonal corners seeding new small circles so the total pattern will eventually diverge from circular. As the circle radius grows at just...
by ynotds
April 11th, 2011, 2:26 am
 
Forum: Other Cellular Automata
Topic: Smallest slowest spaceship?
Replies: 27
Views: 9672

Re: Smallest slowest spaceship?

but the Euclidean metric doesn't really mean much in a Moore neighborhood. Another counter example (you might need to View Image to see the right hand section): http://www.thewildca.com/adjacentrules/345_3_asym-30000wCircle.png This shows B3/S345 run to 30,000 iterations from a smal...
by ynotds
April 9th, 2011, 10:47 pm
 
Forum: Other Cellular Automata
Topic: Smallest slowest spaceship?
Replies: 27
Views: 9672

Adding a dimension to "growing spaceship"/puffer

This has to be seen to be believed: SinnerG.zip Just when I was congratulating myself on finally putting to bed the last renderings of my two years work work with Generations 345/3/6, aka LOTE, a pattern appeared which is already wallpaper . Still in the relatively early stages of exploring my LOTE-...
by ynotds
February 19th, 2011, 6:06 am
 
Forum: Other Cellular Automata
Topic: Adding a dimension to "growing spaceship"/puffer
Replies: 1
Views: 4158

Pattern Breeder 25th Anniversary Reprise

Pattern Breeder is a generalisation into arbitrary (initially up to 7x7) neighbourhoods of the Fredkin automata. Making use of QuickDraw's support for XORing bitmaps, it was released at San Francisco Macworld Expo in 1986 and described in the cover story of that September's Scientific American. Thin...
by ynotds
February 5th, 2011, 12:48 am
 
Forum: Other Cellular Automata
Topic: Pattern Breeder 25th Anniversary Reprise
Replies: 0
Views: 3621

Re: SelfRep rule (WMPVN 4568/456/?)

Wow, those are quite some finds. /4 further muddies what I had assumed might be a clearer distinction between replicators and space fillers, with that one pattern seemingly the only one that stays active which it does by forming more copies of itself, but not always the same way. I guess at one leve...
by ynotds
January 30th, 2011, 2:22 am
 
Forum: Other Cellular Automata
Topic: SelfRep rule (WMPVN 4568/456/?)
Replies: 1
Views: 2416

Re: Adding odd numbered Wolfram 1D rules to Golly

137ben wrote:Cool, could you make one for python as well?

Perl is like prostrate cancer. Us old programmers mostly die with it, not from it.

All I know about python :wink: (Warning 15Mb animation.)
by ynotds
January 19th, 2011, 10:01 pm
 
Forum: Other Cellular Automata
Topic: Adding odd numbered Wolfram 1D rules to Golly
Replies: 2
Views: 2905

Adding odd numbered Wolfram 1D rules to Golly

All done with a pair of Perl scripts. The first creates rule tree files for W1 through W255 (odd only): #!/usr/bin/perl # Create Wn.trees for odd numbered Wolfram 1D Rules 1-255 # by Tony Smith, Meme Media, Melbourne, Australia, January 2011 # extends Golly/Rules/TreeGenerators/RuleTreeGen.p...
by ynotds
January 19th, 2011, 5:56 am
 
Forum: Other Cellular Automata
Topic: Adding odd numbered Wolfram 1D rules to Golly
Replies: 2
Views: 2905

Space fillers in unexpected places

When I'm searching the rule spaces identified above I have a basic model of what I'm looking for from a viable small seed over of order 100,000 iterations: a slowly growing chaotic core with streams of common ships radiating like compass points, four NSEW with common symmetric and asymmetric c/2 shi...
by ynotds
January 16th, 2011, 6:59 am
 
Forum: Other Cellular Automata
Topic: Experimenting with an intermediate neighbourhood
Replies: 11
Views: 9248

Re: 3458/37/4

knighlife, your "clean K-puffer K-rake" particularly appeals to me. I just found that a slight rule change also turns the original K-puffer engine into a K-ship: x = 14, y = 13, rule = 345/378/4 C5$11.A$10.3A$10.ABA$11.A$10.B.2A$10.BC2A$9.C.3A$10.C! ...
by ynotds
January 16th, 2011, 2:03 am
 
Forum: Other Cellular Automata
Topic: 3458/37/4
Replies: 17
Views: 5241

c/8 diagonal ship forming twin 1 in 5 rakes 45678bc_459ab_24

If you twist your neck this even looks a bit like an alien spaceship: dsymrakeship.zip And while you've got that rule there, if you want an idea what keeps me watching the screen, just start with its only viable collision between two common c/2 ships: x = 8, y = 39, rule = WMPVN-45678bc_459ab_24 6&#...
by ynotds
January 16th, 2011, 1:12 am
 
Forum: Other Cellular Automata
Topic: c/8 diagonal ship forming twin 1 in 5 rakes 45678bc_459ab_24
Replies: 0
Views: 1577

Re: 1D rules in a finite universe

Golly supports all even numbered Wolfram rules presenting successive iterations down the grid and now in 2.2 including bounded or cyclic grids, by setting the rule to something like W22:P35,0 or W110:T36,0. I'm not aware of any method for using rule tables/trees to produce the desirable down the gri...
by ynotds
January 13th, 2011, 8:16 am
 
Forum: Other Cellular Automata
Topic: 1D rules in a finite universe
Replies: 1
Views: 1444

Smallest slowest spaceship?

When I grabbed it I thought it might be a new long period oscillator, but oscar.pl tells me it actually moves. p3s782t.zip I've been excessive here and used Golly's maximum number of colours (256) for the demo zip, giving a speed of 3/782. the generic formula being 3/(3c+14) for any c>16. (I foun...
by ynotds
December 20th, 2010, 2:09 am
 
Forum: Other Cellular Automata
Topic: Smallest slowest spaceship?
Replies: 27
Views: 9672

Knight meets his dragon

dragon.zip I'd expected something like this, but nothing so spectacular. Found in the wild from the first seed I ran on for WMPVN-45678bc_459a_23 and cleaned up, hence the zip with the rule tree for _23. The same initial mechanism in _22 produces a comparably elaborate but otherwise very different ...
by ynotds
December 13th, 2010, 9:35 am
 
Forum: Other Cellular Automata
Topic: True knight trail
Replies: 6
Views: 4155

True knight trail

Leaving blocks every (4, 2) cells period 10, using the same 22 state rule provided in the "intermediate neighbourhood" thread: x = 32, y = 13, rule = WMPVN-45678bc_459a_22 2A20.SR$2A15.2T2.TUQNM$4.2A11.U.2O.UOPLIH$4.2A13.P.2JSPJKGDC$8.2A9.QR ...
by ynotds
December 11th, 2010, 9:42 pm
 
Forum: Other Cellular Automata
Topic: True knight trail
Replies: 6
Views: 4155

Re: Experimenting with an intermediate neighbourhood

Will you release the RuleTree source code? This code relies on being able to simply derive the rule tree for the next higher number of states which I can only presume will only work for Generations-like states. To generate all the rule trees for _2 through _40 while you blink, enter something like:...
by ynotds
December 11th, 2010, 9:19 pm
 
Forum: Other Cellular Automata
Topic: Experimenting with an intermediate neighbourhood
Replies: 11
Views: 9248

Spectacular puffer engine

The attached zip contains the tip of the iceberg, even within the tiny corner of weighted Moore plus Von Neumann neighbourhood rules that I'm this week focused on. p260puffer.zip While the pattern shown is largish for a reason which should be obvious, its core puffer engine has already emerged natur...
by ynotds
December 11th, 2010, 5:50 am
 
Forum: Other Cellular Automata
Topic: Experimenting with an intermediate neighbourhood
Replies: 11
Views: 9248
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