Fake xWSS

A fake or counterfeit xWSS is a spaceship in a cellular automaton, other than Conway's Game of Life, that matches Life's lightweight, middleweight or heavyweight spaceship in at least one of its phases but evolves differently. Whereas the standard spaceships have period 4 and move orthogonally at c/2, fake xWSSes can have different periods and move in different directions at different speeds.

Examples

The c/2 orthogonal spaceship with the apgcode xq4_6frc in the non-totalistic rule B3/S23-ijn4a is a fake LWSS, despite matching the standard LWSS in all its phases, having the same period, and moving at the same speed:

<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 5, y = 4, rule = B3/S23-ijn4a bo2bo$o$o3bo$4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GRID GRIDMAJOR 0 GPS 4 AUTOSTART THUMBLAUNCH THUMBSIZE 2 TRACKLOOP 4 0 1/2 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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Also see
gollark: ncurses springs to mind.
gollark: I've seen a bunch of libraries in many, many languages for terminal manipulation.
gollark: I guess it will work fast enough, unless you want to do... anything at all... fast.
gollark: Yes, but process execution is more horribly inefficient then lua.
gollark: Calling a new process for *every* terminal position/color change, that is.
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