63 lines
1.3 KiB
Bash
Executable File
63 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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declare -A dots
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folds=()
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min_x=-1
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min_y=-1
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while read line; do
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if [[ $line == *','* ]]; then
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dots[$line]=1
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else
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folds+=( $(sed 's/fold along //' <<< $line) )
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fi
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done
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for fold in ${folds[@]}; do
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fold_axis=$(sed 's/=.*$//' <<< $fold)
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fold_coord=$(sed 's/^.*=//' <<< $fold)
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new_dots=()
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todel_dots=()
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if [[ $fold_axis == 'x' ]] && { [ $fold_coord -lt $min_x ] || [ $min_x -eq -1 ] ;}; then
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min_x=$fold_coord
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elif [[ $fold_axis == 'y' ]] && { [ $fold_coord -lt $min_y ] || [ $min_y -eq -1 ] ;}; then
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min_y=$fold_coord
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fi
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for dot in ${!dots[@]}; do
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dot_x=$(sed 's/,.*$//' <<< $dot)
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dot_y=$(sed 's/^.*,//' <<< $dot)
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if [[ $fold_axis == 'x' ]]; then
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if [ $dot_x -gt $fold_coord ]; then
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new_dots+=( "$((fold_coord*2-dot_x)),$dot_y" )
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todel_dots+=( $dot )
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fi
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else
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if [ $dot_y -gt $fold_coord ]; then
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new_dots+=( "$dot_x,$((fold_coord*2-dot_y))" )
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todel_dots+=( $dot )
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fi
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fi
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done
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for todel_dot in ${todel_dots[@]}; do
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unset dots[$todel_dot]
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done
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for new_dot in ${new_dots[@]}; do
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dots[$new_dot]=1
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done
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done
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for j in $(seq 0 $min_y); do
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for i in $(seq 0 $min_x); do
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if [ ${dots["$i,$j"]} ]; then
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echo -n '#'
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else
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echo -n ' '
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fi
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done
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echo
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done
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