[2020][ruby][24.x] use axial coordinates

pull/2/head
Alpha Chen 4 years ago
parent 319dd0129b
commit 1a30bb23a1

@ -7,17 +7,17 @@ def parse(line)
ss = StringScanner.new(line)
until ss.eos?
deltas << case
when ss.scan(/e/) then [ 1, -1, 0]
when ss.scan(/se/) then [ 0, -1, 1]
when ss.scan(/sw/) then [-1, 0, 1]
when ss.scan(/w/) then [-1, 1, 0]
when ss.scan(/nw/) then [ 0, 1, -1]
when ss.scan(/ne/) then [ 1, 0, -1]
when ss.scan(/e/) then [ 1, 0]
when ss.scan(/se/) then [ 0, 1]
when ss.scan(/sw/) then [-1, 1]
when ss.scan(/w/) then [-1, 0]
when ss.scan(/nw/) then [ 0, -1]
when ss.scan(/ne/) then [ 1, -1]
else fail
end
end
deltas.inject {|(x,y,z),(dx,dy,dz)| [x+dx, y+dy, z+dz] }
deltas.inject {|c,d| c.zip(d).map {|c,d| c+d }}
end
NEIGHBORS = %w[ e se sw w nw ne ].map {|dir| parse(dir) }

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