X-Git-Url: https://git.sommitrealweird.co.uk/advent-of-code-2019.git/blobdiff_plain/208278a116710606095215db716ec2e1c99855cb..8559cc01c88addff1e3970519775d08c121ce5bf:/day10/check_asteroids.sh

diff --git a/day10/check_asteroids.sh b/day10/check_asteroids.sh
index bf54544..efda359 100755
--- a/day10/check_asteroids.sh
+++ b/day10/check_asteroids.sh
@@ -5,6 +5,8 @@ set -e
 
 basedir=$(dirname $(readlink -f ${BASH_SOURCE}))
 
+. $basedir/common.sh
+
 filename=${1:-$basedir/3_4_8.txt}
 
 exec 3<$filename
@@ -37,18 +39,6 @@ debug_line() {
     echo "$line" >&2
 }
 
-get_vector() {
-    local x1=$1
-    local y1=$2
-    local x2=$3
-    local y2=$4
-
-    x_diff=$(($x1 - $x2))
-    y_diff=$(($y1 - $y2))
-
-    echo "$x_diff,$y_diff"
-}
-
 check_collision() {
     # we want to know if vector2 is going to get in the way of vector1
     local vector1=$1