Perhaps you should run this:

my @movement = (0, 1);

my $from = "";
if (@movement == (0, 1)) {$from = "north"}
elsif (@movement == (1, 0)) {$from = "east"}
elsif (@movement == (0, -1)) {$from = "south"}
elsif (@movement == (-1, 0)) {$from = "west"}

print "$from\n";
[download]

Then read up on == working on numerical values :)

cLive ;-)