Search found 199 matches

by EricG
August 4th, 2016, 10:06 pm
Forum: The Sandbox
Topic: Test
Replies: 31
Views: 13498

Re: Test

life_emulator_in_Rule_R.rle.zip Above, I've attached the life emulator described in this paper: Demonstration of the Universality of a New Cellular Automaton by E. Sapin, O. Bailleux, J.-J. Chabrier and P. Collet http://uncomp.uwe.ac.uk/sapin/cv/ijuc.pdf Although it is certainly a very interesting ...
by EricG
July 30th, 2016, 10:55 am
Forum: The Sandbox
Topic: Test
Replies: 31
Views: 13498

Re: Test

That's great! Thank you for replying so quickly, and it is nice to see that the notations hew so closely to each other. The spaceship pattern I posted isn't intrinsically interesting - it was just a test of rule "R", and it looks like three of the spaceships are also heading the wrong way. An intere...
by EricG
July 30th, 2016, 9:45 am
Forum: Other Cellular Automata
Topic: Golly 2.8 will support non-totalistic rules
Replies: 28
Views: 7247

Re: Golly 2.8 will support non-totalistic rules

I suggest incorporating Emmanuel Sapin's work, which would be easy, but unfortunately it is not quite as easy as cutting-and-pasting.
I posted a relevant comment in the test forum here: viewtopic.php?f=12&t=2305&p=33746#p33746
by EricG
July 30th, 2016, 9:12 am
Forum: The Sandbox
Topic: Test
Replies: 31
Views: 13498

Re: Test

Test of Emmanul Sapin's non-totalistic R rule, with un-reveresed y and r notation. x = 140, y = 21, rule = B3-ekrj4-j5-evqy68/S2eki3-ek4cvqjz 126bo11bo$126bo11bo$90bo34b4o7b4o$88b2o2bo34b2o7b2o$90b3o34b3o5b3o$5bo 2bo76b2o3b3o34b3o5b3o$3bo6bo76bo2b3o35bo7bo$84bo5b2o12b4o21bo5bo$2b3ob 2ob3o72b7o13bo2b...
by EricG
May 20th, 2016, 12:19 am
Forum: General Discussion
Topic: Hyperbolic Game Of Life?
Replies: 8
Views: 4228

Re: Hyperbolic Game Of Life?

I posted work on various tilings awhile back, including the then-14 types of pentagonal tilings, and the various uniform and dual-uniform tilings, in these two threads:

viewtopic.php?f=11&t=1123&p=8217
viewtopic.php?f=11&t=1124&p=8223
by EricG
May 11th, 2016, 11:36 am
Forum: Website Discussion
Topic: Like button in forum request
Replies: 32
Views: 10368

Re: Like button in forum request

I agree with Simsim314 on the need for this, even if feedback buttons aren't chosen as the best solution. I was blown away, amazed, and delighted by Simsim314's Caterloopillar thread. But I didn't say so. I didn't send Simsim314 a personal message, maybe due to a degree of social awkwardness on my p...
by EricG
March 29th, 2016, 8:32 am
Forum: Other Cellular Automata
Topic: DryLife Exploration Thread
Replies: 5
Views: 2644

Re: DryLife Exploration Thread

Don't miss out on reading this already existing thread: viewtopic.php?f=11&t=490 If you're interested in DryLife, it makes for very exciting reading! Maybe seeing what's already been done will help someone build something new.
by EricG
March 21st, 2016, 12:56 pm
Forum: Patterns
Topic: Thread for your unsure discoveries
Replies: 1721
Views: 835719

Re: Thread for your unsure discoveries

Trying to make weekender eater, is there anything I'm missing? As an exercise, that's a fine thing to work on, and I have no advice other than to keep at it. But here is something you might be missing: each of the forums on Conwaylife.com/forums has a search function (look for the box that says "se...
by EricG
March 20th, 2016, 10:15 pm
Forum: Patterns
Topic: is this c/10 spaceship known?
Replies: 353
Views: 455007

Re: is this c/10 spaceship known?

Two tagalongs can pull just a simple block: x = 26, y = 21, rule = B3/S23 4b2o14b2o$3b4o12b4o2$2b6o10b6o$3b4o12b4o2$2b2o2b2o10b2o2b2o$2obo2bob2o 6b2obo2bob2o$3bo2bo12bo2bo3$4b2o14b2o$4b2o14b2o2$bobo2bobo8bobo2bobo$o 2bo2bo2bo6bo2bo2bo2bo$o8bo6bo8bo$o8bo6bo8bo$2o6b2o6b2o6b2o$2b6o4b2o4b 6o$12b2o! Apol...
by EricG
March 18th, 2016, 11:55 am
Forum: Scripts
Topic: CopperSearch
Replies: 31
Views: 19744

Re: CopperSearch

Rather than discard all period 8 and period 15 patterns, I wonder if you could have a final step at the very end which you run just once where boring results are weeded out? Or if it is too much work to check against known period 8 and period 15 oscillators, maybe you could have a simple test for "i...
by EricG
March 18th, 2016, 10:54 am
Forum: Scripts
Topic: CopperSearch
Replies: 31
Views: 19744

Re: CopperSearch

Thanks for doing this.

Out of curiosity, what is the rationale for throwing away period 8 and period 15?
Also, how much would it speed up the search to skip step 1, and do you think it might be worth it?
by EricG
March 6th, 2016, 10:26 am
Forum: Patterns
Topic: is this c/10 spaceship known?
Replies: 353
Views: 455007

Re: is this c/10 spaceship known?

This thread _might_ be helpful:

How to use Gfind?
viewtopic.php?f=9&t=826
by EricG
March 5th, 2016, 9:37 pm
Forum: Patterns
Topic: is this c/10 spaceship known?
Replies: 353
Views: 455007

Re: is this c/10 spaceship known?

The copperhead can convert HWSS into beehives in either orientation, it convert an HWSS into a loaf, it can convert a turtle into a beehive, and finally, it can survive being hit with a loafter: x = 152, y = 67, rule = B3/S23 33b2o2b2o$b2o2b2o26b2o2b2o19b2o2b2o$b2o2b2o25b3o2b3o18b2o2b2o28b2o$3o 2b3o...
by EricG
March 5th, 2016, 12:35 pm
Forum: Patterns
Topic: is this c/10 spaceship known?
Replies: 353
Views: 455007

Re: is this c/10 spaceship known?

Fantastic! Congratulations Zdr! Please tell us the story of how you found it! Hartmut said " Use gencols to rub the ship against gliders and *WSSs to see whether there is a useful collision to maybe build a puffer." Could you elaborate? What are the characteristics of a helpful collision? Here's an ...
by EricG
December 23rd, 2015, 4:39 pm
Forum: Other Cellular Automata
Topic: Move variants
Replies: 10
Views: 4129

Re: Move variants

Daniel, For these sorts of "variant of rule x" posts, it would be great if you posted a graphical or text explanation of how the rule was modified from the lifelike rule (or otherwise well known rule). I know the Golly-compatible rule table is there for all of us to examine, but providing a diagram ...
by EricG
November 9th, 2015, 10:04 pm
Forum: Other Cellular Automata
Topic: Close life variants
Replies: 164
Views: 78331

Re: Close life variants

Awesome, A for Awesome! Here's a version of the above-mentioned oscillator that works in plife: x = 11, y = 20, rule = plife 6b2o$5bo2bo$7b2o$7b2o$5b3o$5b2o$b2o2b2o$3bo$o2b2o$o3bo2$b3o4$4b3ob3o$ 4bo5bo$4bo5bo$5bo3bo$6b3o! Here's a puffer that produces the oscillator among other stuff: x = 33, y = 44...
by EricG
November 9th, 2015, 9:34 pm
Forum: Other Cellular Automata
Topic: Close life variants
Replies: 164
Views: 78331

Re: Close life variants

Nice rule! On the road to finding a two engine oblique ship, here's a four engine oblique rake, which produces gliders and t-ships: x = 285, y = 187, rule = plife 29$263b2o$262b2obo$14bo247b2obo$13b3o246bobo$262b2o4$257bo$255bobo$ 255bobo$236b2o$235b2obo$235b2obo22bo$235bobo20bo4bo$235b2o21bo5bo$43b...
by EricG
October 9th, 2015, 4:15 pm
Forum: Other Cellular Automata
Topic: tlife (B3/S2-i34q)
Replies: 467
Views: 249087

Re: tlife

This is only trivially different from what's posted above, but here is a clean side t-ship rake: x = 86, y = 68, rule = tlife 53bo5bo15bo5bo$52b3o3b3o6bo6b3o3b3o$51b2o2bobo2b2o4b3o5bob2ob2obo$51b 2o7b2o3b2o2bo5bobobobo$51b4o3b4o3bo3bo5bobobobo$52b2o5b2o4bob2o6bobobo bo$65b2o2$64b3o$64b5o$66bobo$68bo...
by EricG
October 9th, 2015, 3:16 pm
Forum: Other Cellular Automata
Topic: tlife (B3/S2-i34q)
Replies: 467
Views: 249087

Re: tlife

Here's a glider-emitting forward rake based on A for Awesome's puffer: x = 37, y = 44, rule = tlife 3b3o3b3o13b3o3b3o$2bo2bo3bo2bo4b3o5bo2bobo2bo$5bo3bo6bo2bo5bo2bobo2bo$ bo3bo3bo3bo2bo3bo4b2obobob2o$5bo3bo7b4o4bo7bo$2bo2bo3bo2bo6bo12$2bo5bo $b3o3b3o$2o2bobo2b2o17b3o3b3o$2o7b2o17bo2bobo2bo$4o3b4o17b...
by EricG
October 1st, 2015, 8:38 am
Forum: Other Cellular Automata
Topic: Clouds (help)
Replies: 3
Views: 1126

Re: Clouds (help)

If B0 rules aren't "cheating", you might like this rule, found by David Eppstein: x = 555, y = 283, rule = B013468/S02 555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$ 555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$555o$ 555o$555o$555o$555o$555o$555o$555o$555o...
by EricG
September 15th, 2015, 10:31 am
Forum: Other Cellular Automata
Topic: tlife (B3/S2-i34q)
Replies: 467
Views: 249087

Re: tlife

The c/4 orthogonal ship posted above can be chopped in half to create a smaller c/4:

Code: Select all

x = 35, y = 13, rule = tlife
7b2o2b2o$8b4o2$8b4o$7b2o2b2o$7bob2obo$7bo4bo18b4o$4bobo6bobo13bo3bo$2b
o2b3o4b3o2bo9bo2b3o$o3b3o6b3o3bo5bo3b3o$bo16bo7bo$2b4o8b4o9b4o$3b3o8b
3o11b3o!
by EricG
September 15th, 2015, 12:06 am
Forum: Other Cellular Automata
Topic: tlife (B3/S2-i34q)
Replies: 467
Views: 249087

Re: tlife

The tlife rule in Alan Hensel's notation is B3/S2-i34q which means that we can use Paul Tooke's modified gfind. Here are some early results - two new c/2s, three c/3s, and an orthogonal c/4: x = 111, y = 17, rule = tlife 64bobo$64b2o$66bo33bo2bo$100bo2bo$2o3b2o7bo5bo6b2o9b2o11bobo2bo7b2o3bo 29bob2ob...
by EricG
January 10th, 2015, 11:07 am
Forum: Other Cellular Automata
Topic: To Implement Extended Moore Neighbourhoods
Replies: 7
Views: 2071

Re: To Implement Extended Moore Neighbourhoods

Oh, I should have said this first: the quickest and easiest way to experiment with the Knight's Move neighborhood using publicly available software is to use Brian Prentice's Square Cell program! The code I posted above takes so long to run that it isn't practical unless you already have a particula...
by EricG
January 10th, 2015, 10:57 am
Forum: Other Cellular Automata
Topic: To Implement Extended Moore Neighbourhoods
Replies: 7
Views: 2071

Re: To Implement Extended Moore Neighbourhoods

Luke, If I'm not mistaken, the link you provided lists future directions for the rule table format, but they aren't implemented for Golly (or any other commonly used program) at this time. The good news is that two state rules for Radius 2 neighborhoods can be emulated in Golly, and I'm providing so...
by EricG
December 15th, 2014, 1:21 pm
Forum: Other Cellular Automata
Topic: Concatination Rules
Replies: 2
Views: 1241

Re: Concatination Rules

For more on this topic, see Tropylium's post on Alternating Rules: http://www.conwaylife.com/forums/viewtopic.php?f=11&t=719&p=7841&hilit=alternating+rules#p5025 Alternating rules just once, instead of repeatedly, can sometimes be useful too. I've occasionally found puffers in rules by first creatin...