Rewind

From LifeWiki
Revision as of 14:31, 6 March 2023 by Confocal (talk | contribs) (discard the "needs-to-be-expanded" directive -- no feedback from anyone else since https://conwaylife.com/w/index.php?title=Rewind&diff=121186&oldid=121185)
Jump to navigation Jump to search

To rewind a pattern is to change it into a form that it would have looked several generations earlier.[1]

For glider syntheses or other multi-object collisions, rewinding the pattern amounts to moving every spaceship and every oscillator back in time by the same number of ticks. A synthesis is only considered valid when it can be rewound back by an arbitrary number of generations.[2]

There is a python script that rewinds standard spaceships, blinkers and beacons in a given pattern by one tick.[3]

See also

References

  1. ↑ Nathaniel Johnston, Dave Greene. Conway's Game of Life: Mathematics and Construction (2022), pp. 179.
  2. ↑ Nathaniel Johnston, Dave Greene. Conway's Game of Life: Mathematics and Construction (2022), Section 5.7.4, pp. 144.
  3. ↑ Dave Greene. "glider-rewinder.py". GitHub. (python 3.x compatible version)

External links

  • Dave Greene (May 29, 2013). Glider Rewinder (discussion thread) at the ConwayLife.com forums
Retrieved from "https://conwaylife.com/w/index.php?title=Rewind&oldid=126189"