Traffic light: Difference between revisions

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The '''traffic light''' is a common formation of four [[blinker]]s and is the most common member of the [[familiar fours]], also being the only one made from [[oscillator]]s. Although it behaves the same in some important non-standard [[rules]] such as [[HighLife]] as it does in [[Conway's Game of Life|standard Life]], it does not appear nearly as frequently in many of those rules due to its common [[predecessor]]s being unstable.<ref>[http://www.tip.net.au/~dbell/articles/HighLife.zip HighLife - An Interesting Variant of Life] by David Bell (.zip file)</ref>
The '''traffic light''' is a common formation of four [[blinker]]s and is the most common member of the [[familiar fours]], also being the only one made from [[oscillator]]s. 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 [[Conway's Game of Life|standard Life]], it does not appear nearly as frequently in many of those rules due to its common [[predecessor]]s being unstable.<ref>[http://www.tip.net.au/~dbell/articles/HighLife.zip HighLife - An Interesting Variant of Life] by David Bell (.zip file)</ref>


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.
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.

Revision as of 21:24, 22 November 2017

Traffic light
2b3o2$o5bo$o5bo$o5bo2$2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ LOOP 2 GPS 2 THUMBSIZE 2 ]]
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Pattern type Constellation
Oscillator
Number of cells 12
Bounding box 9 × 9
Period 2 (mod: 2)
Heat 16
Volatility 0.80 | 0.80
Kinetic symmetry Unspecified
Discovered by Unknown
Year of discovery Unknown

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]

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)

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