Difference between revisions of "T-tetromino"

From LifeWiki
Jump to navigation Jump to search
Line 3: Line 3:
  
 
In a cylindrical grid with a width of 6, the T-tetromino is always a [[replicator]].  It copies itself on the 15th and 40th generations of every 40 generations.  However, because it leaves behind [[block]]s, [[blinker]]s, and [[spark]]s, it does cleanly replicate itself until after 200 generations.  It acts much the same way as the replicator in [[Highlife]] because the two copies of the T-tetromino appear offset in opposite directions of the original.  Also, two replicators will destroy each other if they are next to each other.  The T-tetromino replicates orthogonally and 35 cells away from the original.
 
In a cylindrical grid with a width of 6, the T-tetromino is always a [[replicator]].  It copies itself on the 15th and 40th generations of every 40 generations.  However, because it leaves behind [[block]]s, [[blinker]]s, and [[spark]]s, it does cleanly replicate itself until after 200 generations.  It acts much the same way as the replicator in [[Highlife]] because the two copies of the T-tetromino appear offset in opposite directions of the original.  Also, two replicators will destroy each other if they are next to each other.  The T-tetromino replicates orthogonally and 35 cells away from the original.
 +
 +
In the [[non-totalistic Life-like cellular automaton]] [[tlife]], the T-tetromino is an extremely common [[c/5 orthogonal]] [[spaceship]].
 
==See also==
 
==See also==
 
*[[Pre-pulsar]]
 
*[[Pre-pulsar]]
Line 8: Line 10:
 
==External links==
 
==External links==
 
{{LinkLexicon|lex_t.htm#ttetromino}}
 
{{LinkLexicon|lex_t.htm#ttetromino}}
 +
{{LinkCatagolue|xq5_27}}

Revision as of 21:41, 15 June 2016

T-tetromino
x = 3, y = 2, rule = B3/S23 3o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Miscellaneous
Number of cells 4
Bounding box 3×2
Discovered by John Conway
Year of discovery 1970

T-tetromino is one of 5 tetrominoes. It is a common predecessor of the traffic light, and when paired with another T-tetromino it can become a predecessor of the pulsar.

In a cylindrical grid with a width of 6, the T-tetromino is always a replicator. It copies itself on the 15th and 40th generations of every 40 generations. However, because it leaves behind blocks, blinkers, and sparks, it does cleanly replicate itself until after 200 generations. It acts much the same way as the replicator in Highlife because the two copies of the T-tetromino appear offset in opposite directions of the original. Also, two replicators will destroy each other if they are next to each other. The T-tetromino replicates orthogonally and 35 cells away from the original.

In the non-totalistic Life-like cellular automaton tlife, the T-tetromino is an extremely common c/5 orthogonal spaceship.

See also

External links