Direction

The direction of a pattern is defined by the way the pattern, or a part of it, reappears in a different area.

For spaceships, puffers, rakes and certain breeders, this is defined as orthogonal (exclusively horizontal or vertical displacement), diagonal (both horizontal and vertical displacement, and oblique (other displacements, for example knightwise being horizontal being twice vertical displacement).

Also see
gollark: RCS?
gollark: It's open source and end to end encrypted.
gollark: Use Signal!
gollark: .
gollark: The PinePhone has a somewhat sanely sized LCD screen, replaceable battery and some other bits, and USB-C with video output capability, so it seems pretty great
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