Difference between revisions of "OCA:Snowflakes"
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'''Snowflakes''' is a non-totalistic [[cellular automaton#Well-known Life-like cellular automata|Life-like cellular automaton]] by users BlinkerSpawn and danny that is [[omniperiodic]]. | '''Snowflakes''' is a non-totalistic [[cellular automaton#Well-known Life-like cellular automata|Life-like cellular automaton]] by users BlinkerSpawn and danny that is [[omniperiodic]]. | ||
It is named by a very common 21 cell [[still life]] that has a 2 cell seed: | It is named by a very common 21 cell [[still life]] that has a 2 cell seed: | ||
{{ | |||
$4bo$2b5o$2bo3bo$b2obob2o6bobo$2bo3bo$2b5o$4bo!}} | {{EmbedViewer | ||
|rle = x = 21, y = 9, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e | |||
$4bo$2b5o$2bo3bo$b2obob2o6bobo$2bo3bo$2b5o$4bo! | |||
|position = center | |||
}} | |||
==Patterns== | ==Patterns== | ||
Line 15: | Line 19: | ||
===Spaceships=== | ===Spaceships=== | ||
There are two very important small orthogonal spaceships: | There are two very important small orthogonal spaceships: | ||
{{ | {{EmbedViewer | ||
x = 10, y = 3, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e | |rle = x = 10, y = 3, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e | ||
6bo2bo$obo3b3o$3o4bo!}} | 6bo2bo$obo3b3o$3o4bo! | ||
|position = center}} | |||
The G is c/2, the R is 2c/4. There exist G [[gun]]s for all possible periods, the lowest being 11. The same is true for the R gun, but no guns have ever been found of periods 9 and 10, the former being the lowest period possible. | The G is c/2, the R is 2c/4. There exist G [[gun]]s for all possible periods, the lowest being 11. The same is true for the R gun, but no guns have ever been found of periods 9 and 10, the former being the lowest period possible. | ||
Besides c/2 orthogonal, the only known spaceship speeds are 2c/6 orthogonal, 2c/19 orthogonal and 2c/12 diagonal, with the smallest examples being: | |||
{{ | {{EmbedViewer | ||
x = 41, y = 10, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e | |rle = x = 41, y = 10, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e | ||
9b6o10b3o10bo$5bo2b5obo10bobo9b3o$3o6bobobobo9b3o12bo$8bob3obo9bo3bo$ | 9b6o10b3o10bo$5bo2b5obo10bobo9b3o$3o6bobobobo9b3o12bo$8bob3obo9bo3bo$ | ||
4b3o2bo2b3o22bo2bo$bo6bobo10bo9bo$8b3o10bo4bo4bo$5bo15bo9bo$23bo5bo$ | 4b3o2bo2b3o22bo2bo$bo6bobo10bo9bo$8b3o10bo4bo4bo$5bo15bo9bo$23bo5bo$ | ||
26bo! | 26bo! | ||
|position = center | |||
}} | }} | ||
The latter two spaceships have since appeared naturally in C1 soups, and have a synthesis from G's. For all known speeds there are puffers, but only the orthogonal speeds have rakes. | The latter two spaceships have since appeared naturally in C1 soups, and have a synthesis from G's. For all known speeds there are puffers, but only the orthogonal speeds have rakes. |
Revision as of 01:26, 15 February 2019
Snowflakes | |
View static image | |
Rulestring | 02ae3eijkq4iz5ar6i7e/2ci3ai4c8 B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e |
---|---|
Character | Chaotic |
Snowflakes is a non-totalistic Life-like cellular automaton by users BlinkerSpawn and danny that is omniperiodic. It is named by a very common 21 cell still life that has a 2 cell seed:
(click above to open LifeViewer) |
Patterns
Spaceships
There are two very important small orthogonal spaceships:
(click above to open LifeViewer) |
The G is c/2, the R is 2c/4. There exist G guns for all possible periods, the lowest being 11. The same is true for the R gun, but no guns have ever been found of periods 9 and 10, the former being the lowest period possible.
Besides c/2 orthogonal, the only known spaceship speeds are 2c/6 orthogonal, 2c/19 orthogonal and 2c/12 diagonal, with the smallest examples being:
(click above to open LifeViewer) |
The latter two spaceships have since appeared naturally in C1 soups, and have a synthesis from G's. For all known speeds there are puffers, but only the orthogonal speeds have rakes.
A universal constructor is in the works by Goldtiger997 and several other users, which may lead to a very high-period spaceship, much like Life's universal constructor-based spaceships.
External links
- Snowflakes (discussion thread) at the ConwayLife.com forums