Added script to do all the math

Added the algorithm needed to convert portal codes into galatic coordinates

converter.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+PORTALHEX=$1
+if [ -z "$PORTALHEX" ]; then
+    exit 1
+fi
+
+P=$(echo $PORTALHEX | cut -c 1-1)
+SSI=$(echo $PORTALHEX | cut -c 2-4)
+Y=$(echo $PORTALHEX | cut -c 5-6)
+Z=$(echo $PORTALHEX | cut -c 7-9)
+X=$(echo $PORTALHEX | cut -c 10-12)
+
+Yd=$(echo "ibase=16; $Y" | bc)
+Xd=$(echo "ibase=16; $X" | bc)
+Zd=$(echo "ibase=16; $Z" | bc)
+
+if (( $Yd <= 128 )) ; then
+    Y=$(expr $Y + 100)
+fi
+if (( $Zd <= 2048 )) ; then
+    Z=$(expr $Z + 1000)
+fi
+if (( $Xd <= 2048 )) ; then
+    X=$(expr $X + 1000)
+fi
+
+Yd=$(echo "ibase=16; $Y" | bc)
+Xd=$(echo "ibase=16; $X" | bc)
+Zd=$(echo "ibase=16; $Z" | bc)
+
+Y=$(echo "obase=16; $(expr $Yd - 129)" | bc)
+X=$(echo "obase=16; $(expr $Xd - 2049)" | bc)
+Z=$(echo "obase=16; $(expr $Zd - 2049)" | bc)
+
+X=`printf "%04x" 0x$X`
+Y=`printf "%04x" 0x$Y`
+Z=`printf "%04x" 0x$Z`
+SSI=`printf "%04x" 0x$SSI`
+
+echo -e "$X:$Y:$Z:$SSI"