An amusing and inefficient solution for 7 Billion Humans Year 32

year32_inefficient_spiral.asm

-- 7 Billion Humans (2087) --
-- 32: Creative Writhing --
--
-- Causes the humans to write datacubes one column at a time starting with the middle column. Because the humans are not all aligned
-- to the same side of their line at the start, all three humans visit all three columns.

-- column 2, moving south
a:
step s
if s == wall:
	jump b
endif
if c == 0:
	pickup c
	write 99
	drop
endif
jump a
b:
step w

-- column 1, moving north
c:
step n

-- This is a really bizarre way to check boundary conditions that works for the far left lane (which ends at a wall) as well as
-- the other lanes.
if w != datacube and
 c != datacube and
 e != datacube and
 ne != datacube:
	jump d
endif
if c == 0:
	pickup c
	write 99
	drop
endif
jump c
d:
step e
step e

-- column 3, moving south
e:
step s
if c == 0:
	pickup c
	write 99
	drop
endif
jump e