Line crosser
A line crosser is a pattern which is able to send a signal across an infinite diagonal line of live cells without destroying the line. David Bell built one such pattern in August 2006. It uses many synchronized one-shot period 44160 glider guns on both sides of the line.
| Line crosser | |||||
| |||||
| View static image | |||||
| Pattern type | Miscellaneous | ||||
|---|---|---|---|---|---|
| Number of cells | 13200 | ||||
| Bounding box | 1021×1202 | ||||
| Discovered by | Dave Greene | ||||
| Year of discovery | 2018 | ||||
| |||||
An input glider can arrive at any multiple of 44160 generations to first cut the line, then send a glider through the gap, and finally mend the line while leaving an output glider on the other side.
In 2018, using variants of the reactions shown in line-cutting reaction and line-mending reaction, Dave Greene built a smaller stable line crosser that can accept gliders with any timing, as long as they are separated by 501 or more ticks.[1] The pattern shown in the infobox also contains two additional eaters near the diagonal line, which allow the pattern to serve as a line detection mechanism of a sort: a glider will only be sent northeast if a line is actually present in the key location.
References
- Dave Greene (September 9, 2018). Re: Stable line crosser challenge (COMPLETED) (discussion thread) at the ConwayLife.com forums
This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.