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86979ed04963febd2e8fb8a3b503d84591801a75
[advent-of-code-2019.git]
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day10
/
common.sh
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get_vector() {
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local x1=$1
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local y1=$2
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local x2=$3
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local y2=$4
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x_diff=$(($x1 - $x2))
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y_diff=$(($y1 - $y2))
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echo "$x_diff,$y_diff"
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}
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get_asteroids_vector() {
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local a1=$1
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local a2=$2
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local x1=${a1%,*}
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local y1=${a1#*,}
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local x2=${a2%,*}
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local y2=${a2%*,}
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get_vector $x1 $y1 $x2 $y2
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}
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