I think is something more simple... like this:
Map With Coordinates
First Coordinate
Second Coordinate
Action
auto(100)
if $posx >= 33185 and $posy >= 31046 and $posz == 7 and
$posx <= 33237 and $posy <= 31086 and $posz == 7 then
--DO SOMETHING, like stop attack and run until leave dangerous area
setsetting('Targeting/Enabled', 'no')
stopattack()
gotolabel('waypoint after purple line 2',$wptsection)
end