def link_direction_test():
loc1 = (5, 5)
# north
loc2 = (5, 6)
ok_(map_gen.link_direction(loc1, loc2) == 's')
# north-east
loc2 = (6, 6)
ok_(map_gen.link_direction(loc1, loc2) == 'se')
# east
loc2 = (6, 5)
ok_(map_gen.link_direction(loc1, loc2) == 'e')
# south-east
loc2 = (6, 4)
ok_(map_gen.link_direction(loc1, loc2) == 'ne')
# south
loc2 = (5, 4)
ok_(map_gen.link_direction(loc1, loc2) == 'n')
# south-west
loc2 = (4, 4)
ok_(map_gen.link_direction(loc1, loc2) == 'nw')
# west
loc2 = (4, 5)
ok_(map_gen.link_direction(loc1, loc2) == 'w')
# north-west
loc2 = (4, 6)
ok_(map_gen.link_direction(loc1, loc2) == 'sw')
def get_exit_dir(s1, s2):
""" Return exit direction from s1 to s2. s1 and s2 are Scene objects."""
return map_gen.link_direction(s1.location, s2.location)
