Zone of influence

The zone of influence of a cell or pattern is the set of cells on which that cell or pattern can exert an influence in a given number of generations.[1] If the number of generations is not specified, it is generally taken to be one, in which case the zone of influence simply coincides with the Moore neighbourhood of the cell or pattern.

The set for n generations consists of all the cells to which at least n paths of length n can be traced from the cell – contrast this with the range n Moore neighbourhood, which just consists of all cells to which at least one path of length n can be traced (see example below).

The Moore neighbourhood of range 2 of a single cell
The zone of influence of range 2 of a single cell
gollark: Yes, I guess.
gollark: Basically.
gollark: It waits for the right timer event, and will just wait infinitely if it's already happened.
gollark: Because otherwise sleep will wait forever.
gollark: I'm working on trying to have my process manager support suspending. It *kind of* works, but any "timer" events are eaten up and not fed to the process while it's suspended, so "sleep" just waits forever. How should I solve this? An event queue (could get gigantic fast, so probably not)? Special-casing for "unique" events like timers?

See also

References
  1. Pentadecathlon.com. "Game of Life Dictionary – Zone of Influence". Retrieved on June 11, 2011.
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