60 lines
1.3 KiB
Bash
60 lines
1.3 KiB
Bash
#!/bin/bash
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# CHECKS
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## Check if argument is set
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PORTALHEX=$1
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if [ -z "$PORTALHEX" ]; then
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exit 1
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fi
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## Check if char len of is exactly 12 chars long
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PHLEN=${#PORTALHEX}
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if [ $PHLEN != 12 ]; then
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echo "Portal Addresses MUST be exactly 12 chars long"
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exit 1
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fi
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# Format sting into a hex
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SSI=$(echo $PORTALHEX | cut -c 2-4)
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Y=$(echo $PORTALHEX | cut -c 5-6)
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Z=$(echo $PORTALHEX | cut -c 7-9)
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X=$(echo $PORTALHEX | cut -c 10-12)
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## Convert Hex to Dec
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Yd=$(echo "ibase=16; $Y" | bc)
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Xd=$(echo "ibase=16; $X" | bc)
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Zd=$(echo "ibase=16; $Z" | bc)
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# Begin Algorithem
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## this will help deal with the galaxys shape and boundaries (math is done in dec)
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if (( $Yd <= 128 )) ; then
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Y=$(expr $Y + 100)
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fi
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if (( $Zd <= 2048 )) ; then
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Z=$(expr $Z + 1000)
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fi
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if (( $Xd <= 2048 )) ; then
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X=$(expr $X + 1000)
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fi
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## convert dec to hex and update variables
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Yd=$(echo "ibase=16; $Y" | bc)
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Xd=$(echo "ibase=16; $X" | bc)
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Zd=$(echo "ibase=16; $Z" | bc)
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## Apply hex shift ( Y +0x081 X & Z +0x800 )
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Y=$(echo "obase=16; $(expr $Yd - 129)" | bc)
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X=$(echo "obase=16; $(expr $Xd - 2049)" | bc)
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Z=$(echo "obase=16; $(expr $Zd - 2049)" | bc)
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## padd with zeros, each hex chunck will be 4 chars 0000:0000:0000:0000
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X=`printf "%04x" 0x$X`
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Y=`printf "%04x" 0x$Y`
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Z=`printf "%04x" 0x$Z`
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SSI=`printf "%04x" 0x$SSI`
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## reassemble hex
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PORTALHEX="$X:$Y:$Z:$SSI"
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echo -e $PORTALHEX
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