Search found 644 matches

by bprentice
April 28th, 2013, 5:40 pm
Forum: Other Cellular Automata
Topic: Alternating rules
Replies: 111
Views: 64367

Re: Alternating rules

Repeatedly cycling through the three Generations rules: S04/B48/4 S05/B26/4 S3/B125/4 surprisingly produces knight ships from a world set to random states. This can be seen by running the Java applet here: http://bprentice.webenet.net/Square%20Cell%20Applet/ loading a .sqc file from directory "Set 6...
by bprentice
April 26th, 2013, 4:44 pm
Forum: Other Cellular Automata
Topic: Alternating rules
Replies: 111
Views: 64367

Re: Alternating rules

Eric, Thanks for the explanation. I have placed a new version of Square Cell here: http://bprentice.webenet.net/Square%20Cell/ This version contains a new rule family called Cyclic 2. This family allows rules to be specified which cycle through a sequence of different tables while using a fixed neig...
by bprentice
April 26th, 2013, 1:37 pm
Forum: Other Cellular Automata
Topic: Alternating rules
Replies: 111
Views: 64367

Re: Alternating rules

These rules are interesting, but what precisely are they? They don't seem to be a pair of alternating two state rules operating on a single two state pattern.

Brian Prentice
by bprentice
April 23rd, 2013, 1:12 am
Forum: Other Cellular Automata
Topic: Rules in which every spaceship speed is possible
Replies: 9
Views: 4629

Re: Rules in which every spaceship speed is possible

Rule 018 in my Knight Ship Guns collection mentioned above supports ships that move in 24 different directions, has guns for each of them and uses only 3 states.

Brian Prentice
by bprentice
April 22nd, 2013, 9:00 pm
Forum: Other Cellular Automata
Topic: Rules in which every spaceship speed is possible
Replies: 9
Views: 4629

Re: Rules in which every spaceship speed is possible

Beautiful!

I used a similar approach for Knight Ships. Patterns are included in Rule 015 of my Knight Ship Guns collection posted here:

viewtopic.php?f=11&t=1003

Brian Prentice
by bprentice
April 18th, 2013, 3:13 pm
Forum: Other Cellular Automata
Topic: Emmanuel Sapin's Guns
Replies: 1
Views: 1900

Emmanuel Sapin's Guns

Dr Emmanuel Sapin is currently an Associate Research Fellow at Exeter University in the UK. Here is a large collection of guns that he found and ran on the Life32 simulator. There are 15,363 guns from 15,134 unique rules in the collection. I coded a Non Totalistic rule family so that I could run the...
by bprentice
February 5th, 2013, 10:44 am
Forum: Other Cellular Automata
Topic: Unusual Gun
Replies: 1
Views: 2850

Re: Unusual Gun

I have added a few more patterns to the archive "Hexagonal Grid.zip". The most notable additions are a new irregular gun and a symmetrical oscillator constructed from six copies of this gun. The gun, G012.hxc, is a smaller version of G005.hxc mentioned in my earlier post. The oscillator, O012.hxc, h...
by bprentice
February 2nd, 2013, 3:49 pm
Forum: Other Cellular Automata
Topic: Unusual Gun
Replies: 1
Views: 2850

Unusual Gun

An archive, "Hexagonal Grid.zip", containing a collection of patterns for a rule that can be run on a hexagonal grid is here: http://bprentice.webenet.net/Hexagonal%20Cell/ The collection contains an unusual irregular gun, G005.hxc. An oscillator O004.hxc, with a similar structure, has a period of 4...
by bprentice
January 28th, 2013, 3:01 pm
Forum: Other Cellular Automata
Topic: Tiled CA
Replies: 11
Views: 6767

Tiled CA

Those of you who run Windows XP or Windows 7 may enjoy this program: http://bprentice.webenet.net/TiledCA/TiledCA.html The pattern editing capability is weak compared to my Java CA simulators, but it does demonstrate that the Generations rule can magically create ships on even the most complex tilin...
by bprentice
January 27th, 2013, 7:21 pm
Forum: Other Cellular Automata
Topic: Triangular Grid Guns
Replies: 0
Views: 2676

Triangular Grid Guns

An archive, "Triangular Grid Guns.zip", containing collections of patterns for six different rules that can be run on a triangular grid is here: http://bprentice.webenet.net/Triangular%20Cell/ Each of these pattern collections contain two or more guns. Some of them are quite beautiful. These pattern...
by bprentice
January 25th, 2013, 10:34 pm
Forum: Other Cellular Automata
Topic: Rules with naturally occurring spaceships
Replies: 4
Views: 2691

Re: Rules with naturally occurring spaceships

Each of my Java CA Simulators implement a process which generates and tests a New Rule by first generating random parameters in a selected Rule Family, then setting the world to random states and finally running the simulation. This process is initiated by a New Rule button click. Most of the rules ...
by bprentice
January 22nd, 2013, 9:52 pm
Forum: General Discussion
Topic: The CA community annoys me
Replies: 36
Views: 15449

Re: The CA community annoys me

I would like to introduce those of you who have enjoyed using MCell to a CA simulator called Square Cell. This simulator was designed as a replacement for MCell, is written in Java and can be installed and run on any computer which implements a Java run time environment. An archive, "Square Cell.zip...
by bprentice
January 18th, 2013, 8:53 pm
Forum: Other Cellular Automata
Topic: B25/S03467/C6 Oscillators
Replies: 0
Views: 2478

B25/S03467/C6 Oscillators

Here is a simple period 12 oscillator: x = 3, y = 3, rule = 03467/25/6 DCA$CDC$ACD! Here is a period 60 oscillator: x = 11, y = 11, rule = 03467/25/6 DCA5.ACD$CDC5.CDC$ACD5.DCA2$4.DCA$4.CDC$4.ACD2$ACD5.DCA$CDC5.CDC$DC A5.ACD! Here is a pattern that leads to a period 3948 oscillator: x = 27, y = 27, ...
by bprentice
January 5th, 2013, 6:38 am
Forum: Other Cellular Automata
Topic: Knight Ship Guns
Replies: 23
Views: 16027

Re: Knight Ship Guns

The example patterns contained in each of the 18 collections included in the archive "Knight Ship Guns.zip" can be run on my Square Cell simulator contained in "Square Cell.zip". These two files together with the file "Java Square Cell.html" which tells how to use the simulator can be downloaded her...
by bprentice
December 24th, 2012, 2:51 pm
Forum: Other Cellular Automata
Topic: Knight Ship Guns
Replies: 23
Views: 16027

Re: Knight Ship Guns

I've added one more pattern collection, Rule 018, to the archive "Knight Ship Guns.zip". This rule has 3 states and is another variation of Rule 013. It is notable because it supports not only orthogonal and diagonal ships, but also 2 different types of knight ship. Those with slope 2:1 and those wi...
by bprentice
December 16th, 2012, 1:20 pm
Forum: Other Cellular Automata
Topic: Knight Ship Guns
Replies: 23
Views: 16027

Re: Knight Ship Guns

I've added two more pattern collections, Rule 016 and Rule 017, to the archive "Knight Ship Guns.zip". These new rules are variations of Rule 013. Rule 016 has 8 states, Rule 013 has 5 states and Rule 017 has 4 states. Each of these rules support orthogonal, diagonal and knight replicators. Guns tha...
by bprentice
December 7th, 2012, 1:36 pm
Forum: Other Cellular Automata
Topic: Knight Ship Guns
Replies: 23
Views: 16027

Knight Ship Guns

Consider a ship with horizontal displacement X and vertical displacement Y. If |X| > 0, |Y| > 0 and |X| != |Y| then the ship is a Knight Ship. Such ships are rare compared to orthogonal and diagonal ships. An archive, "Knight Ship Guns.zip", containing collections of patterns for 15 different rules ...
by bprentice
November 26th, 2012, 1:50 am
Forum: Other Cellular Automata
Topic: KnightLife
Replies: 17
Views: 9011

Re: KnightLife

I've added a fifth rule, Rule 005, to the archive Patterns.zip. This one is a variation on Rule 002, it also generates many small knight ships and orthogonal ships. In this rule, however, many of the small ships mark their paths with a sequence of still life patterns. Others erase such trails. The r...
by bprentice
November 25th, 2012, 8:47 am
Forum: Other Cellular Automata
Topic: KnightLife
Replies: 17
Views: 9011

Re: KnightLife

Recently I explored the chess knight neighborhood and found four rules that might be of interest here. The first rule, Rule 001, supports a glider gun and numerous noisy puffers and orthogonal ships. Of particular interest is puffer P001.sqc which periodically generates copies of itself. The second ...