Traffic light

The traffic light is a common formation of four blinkers and is the most common member of the familiar fours, also being the only one made from oscillators. A common predecessor is the T-tetromino. Although it behaves the same in some important non-standard rules such as HighLife as it does in standard Life, it does not appear nearly as frequently in many of those rules due to its common predecessors being unstable.[1]

Traffic light
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>2b3o2$o5bo$o5bo$o5bo2$2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ LOOP 2 GPS 2 THUMBSIZE 2 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
View animated image
View static image
Pattern type Constellation
Oscillator
Number of cells 12
Bounding box 9×9
Period 2
Mod 2
Heat 16
Volatility 0.80
Strict volatility 0.80
Discovered by JHC group
Year of discovery 1970

Drawing a single cell in the middle of the traffic light while it is in its + phase will eat the whole traffic light leaving nothing behind.

See also

References
  1. HighLife - An Interesting Variant of Life by David Bell (.zip file)
This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.