Rewind
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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
- ↑ Conway's Game of Life: Mathematics and Construction, p. 179
- ↑ Conway's Game of Life: Mathematics and Construction, Chapter 5 Glider Synthesis, p. 144
- ↑ 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