ConwayLife.com

hkoenig

I agree about the lack of population and speed info makes the standard Apgcode not as useful for quick visual searches. Which is why I just use the bitpattern info and ignore the apgcode prefix. If needed, and can substitute my own prefix. I would really like to see a searchable database of small pa...

hkoenig

It looks like a simple explanation of the lane/timing is that a glider with (lane,timing)=(0,0) has 3 ON-cells in a single horizontal line and the cell (0,0) will be on in this generation and the next three and all lane numbers increase by 1 when shifting east. A couple or three examples would also...

hkoenig

Also, does this come up in the files somewhere? It would indicate the presence of a spark I have been looking for a synthesis of. Looks like there are 30 collisions that result in this constellation, probably all have the same ancestor, since they take about 180 generations to stabilize. Here are s...

hkoenig

Looks like the data is contained in

https://raw.githubusercontent.com/ceebo ... _paths.txt

What is the format for each line?

hkoenig

is there some way to search for a pattern manually, and how do the coordinate systems for the entries work? I guess I should have documented the census data better. The object ids are from the .SOF files you can find at http://pentadecathlon.com/objects/class1/class1.php and http://pentadecathlon.c...

hkoenig

I took the 3-Glider collisions data and created a database from it. Each record contains fields for the header, the rle (including the bounds), a modified apgcode (no prefix) the locations, directions and phases of each glider, the number of generations until stability (up to 200), an object count, ...

hkoenig

All three are known rotors. The 39 bit version of the P5 was found by Hickerson. The other P5 casings are new. At some point maybe I need to finish up my objects SQLite database so that I can distribute it. One of the record keys it includes is Hickerson's rotor descriptor, so it's easy to look up o...

hkoenig

What's the meaning of the header on each line? Windows at least isn't too happy with this storage method -- it decompresses to only 44.8MB of actual files, but the size on disk is 1.77GB (!). You probably have a huge block size on that disk. Even though a file is only a few bytes long, the space all...

hkoenig

Some large, low-period (therefore probably not very interesting) billiard tables:

The middle P6 appears in my lists. The other two are new.
The P8 does also, attributed to Hickerson.

hkoenig

Not new, because it does appear in my files as 40P4.8:

http://pentadecathlon.com/objects/objec ... .1&level=0

hkoenig

Okay. Setting up the keyboard equivalent worked. I haven't yet upgraded to Golly 3.x, so I can't try that yet. One thing I have done in the past is to manually switch the rule from LifeHistory to Life, but the results were rarely usable (i.e. the shadow cells turned into living cells). What I usuall...

hkoenig

Time to ask-- How does one convert "LifeHistory" into simple RLE format? At a minimum, the Gliders layer.

With Safari, the LifeViewer Ctrl-C gives me "Show in Viewer" when I paste.

If there's a way in Golly to extract it, it's hidden well.

hkoenig

Yes. That's the smallest oscillator with that sort of fuse for a rotor segment. But I was talking more of other ways to terminate and stabilize the fuse-- x=30, y=26 28b2o$29bo$26bobo2$24b2ob3o2$22b2o2$20b2o2$18b2o2$16b2o2$4bo9b2o$2bobo$6b obo3b2o$2o6bo$10b2o$bo$9bo$2b2o$8b2o$3bo$5bobo$5bo! Here are...

hkoenig

Long known.

Code: Select all

#C 18P2.66 and extension
x=34, y=17
2o14b2o$obo13bo$17bobo$o2b2o3bo$bo6bo7b3ob2o$bo3b2o2bo$22b2o$7bobo$8b2o14b
2o2$26b2o2$28b2ob3o2$30bobo$33bo$32b2o!

Other ways of terminating the fuse are left as an exercise for the student.

hkoenig

Oops. I guess that factor of 7 was just too good to double check (and the flip-flopping symmetry should have been another clue that it couldn't be odd...)

But how common are natural spaceships this slow in any rule? I haven't been paying attention.

hkoenig

Looks like it's a spaceship. That same pattern appears downwards 7 cells every 574 generations, for a speed of c/82. Nice and slow.

hkoenig

Here's a gun: x=35, y=38 4b2o$5bo$5bobo$6b2o2b2o$10b2o7$o$3o7b2o$3bo6bobo$2bobo7bo$2b2o6bobo$10b2o$2b 2o$2bo$3b3o$5bo$8b2o$9bo$6b3o14b3o$6bo15bo3bo$21bo5bo$13b2o6bo5bo$13b2o6b 3ob3o$31b2o$31bobo$12b2o19bo$13bo19b2o$10b3o16b2o$10bo13bo4bo$23bobobobo$22b ob2ob2o$22bo$21b2o! Edit: slightly smaller star...

hkoenig

A long time ago I did some investigations into Period 2 oscillators, trying to classify the various rotors and their constituent parts, and understand how to fit those parts together. I've still got some pages I last edited back in 2006 at http://pentadecathlon.com/rotors/rotors.php?page=0 on this s...

hkoenig

Over the past few weeks I've been updating my Life object data files. Going through several years of posting here and updating the oscillator and spaceship discoveries. I've put together SOF files of Still Life objects up to 28 bits. Here's the resulting file size (including indexing metadata) in me...

hkoenig

Also, I've been wondering if there is an alternate format I could put the syntheses in, that would enable them to be combined with chris_c's display_synth script more easily. Object constructions are not arbitrary bit patterns, but consist of other objects (mostly Gliders) interacting to form new o...

hkoenig

You might want to not limit the results to stable objects. Ways of getting 4 gliders to result in an oscillator, especially one with a period greater than 2, would be worth knowing.

hkoenig

I think you are missing some steps in #C Period-4 Half jack from 47 gliders x=36, y=14 18bo$16bobo5bo$17b2o6b2o$4b2o14b2o2b2o8b2o$2obobo13bobo8b2obobo$bobo17bo9b obo$o3bo25bo3bo$b3o26b4o2$b3o26b4o$o3bo25bo3bo$bobo27bobo$2obobo24b2obobo$4b 2o28b2o! It looks like the inductors went from 3 to 4 bits lo...

hkoenig

This what you are looking for?

Code: Select all

x=34, y=20
5bo6b2o9bo4b2o$6b2o4bobob2o10bobob2o$5b2o7bobo6bo6bobo$14bobo13bobo$4bo10b
o7bo7bo$4b2o5b2o$3bobo6bo$12bobo12b2o$2o11b2o13b2o$b2o24bo3b2o$o30bobo$31b
o$17b2o$9b2o6bobo$8bobo6bo$10bo2$14b2o$14bobo$14bo!

hkoenig

Very nice construction. One of the things I was thinking of doing this weekend was to rummage around my disorganized constructions files to see what parts I had that would work, and what gaps needed filling, and now I don't have to do that. The new or improved constructions are quite useful addition...

hkoenig

Here's a version with a slightly smaller object, in terms of population. But this object has a much greater chance of being constructable. x=23, y=47 13bo$11b3o$10bo$2bo7b2o$obo$b2o$18b2o$19bo$19bob2o$11b2o4b3o2bo$11b2o3bo3b 2o$16b4o$2b2o15bo$bobo12b3o$bo13bo$2o14b5o$18bo2bo$20b2o8$10b2o$11bo$11bob ...

ConwayLife.com

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Re: Thread for your unsure discoveries

Re: Enumerating Three-Glider Collisions

Re: Script request thread

Re: Still Life Synthesis Thread

Re: Script request thread

Re: Script request thread

Re: Soup search results

Re: Enumerating Three-Glider Collisions

Re: Oscillator Discussion Thread

Re: Oscillator Discussion Thread

Re: Soup search results

Re: Soup search results

Re: Thread for your unsure discoveries

Re: Thread for your unsure discoveries

Re: apgsearch v4.0

Re: apgsearch v4.0

Re: Oscillator Discussion Thread

Re: Oscillator Discussion Thread

Re: Enumerating Still Lifes (in C)

Re: Synthesising Oscillators

Re: 4 glider syntheses

Re: Synthesising Oscillators

Re: Synthesising Oscillators

Re: Just the place for a Snark!

Re: Just the place for a Snark!