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#!/bin/sh
# Script based on nissy (see https://nissy.tronto.net) to practice FMC
# Usage: practice [eo|dr|htr|slice]
nissy="nissy"
prompt="Press enter for a new scramble, Ctr+C (or Ctrl+Z) to quit:"
usage() {
echo "Usage: practice [eo|dr|htr|fin]"
exit 1
}
practice_eo() {
nextscr="$(${nissy} scramble fmc)"
while true; do
scr="$nextscr"
echo "Scramble: $scr"
nextscr="$(${nissy} scramble fmc)"
eofb="$(${nissy} solve -N -M 4 eofb -p "$scr")"
eorl="$(${nissy} solve -N -M 4 eorl -p "$scr")"
eoud="$(${nissy} solve -N -M 4 eoud -p "$scr")"
nfbn="$(echo "$eofb" | grep -v '^$' | grep -Fv '(' | wc -l)"
nrln="$(echo "$eorl" | grep -v '^$' | grep -Fv '(' | wc -l)"
nudn="$(echo "$eoud" | grep -v '^$' | grep -Fv '(' | wc -l)"
nfbi="$(echo "$eofb" | grep '^(' | wc -l)"
nrli="$(echo "$eorl" | grep '^(' | wc -l)"
nudi="$(echo "$eoud" | grep '^(' | wc -l)"
nfbniss="$(echo "$eofb" | grep -v '^(' | grep '(' | wc -l)"
nrlniss="$(echo "$eorl" | grep -v '^(' | grep '(' | wc -l)"
nudniss="$(echo "$eoud" | grep -v '^(' | grep '(' | wc -l)"
nfb="$((nfbn + nfbi + nfbniss))"
nrl="$((nrln + nrli + nrlniss))"
nud="$((nudn + nudi + nudniss))"
n5linear="$(${nissy} solve -L -m 5 -M 5 eo -c "$scr")"
n5niss="$(${nissy} solve -N -m 5 -M 5 eo -c "$scr")"
n5nonlinear="$((n5niss - n5linear))"
read -r x
echo "FB: $nfb ($nfbn normal, $nfbi inverse, $nfbniss niss)"
echo "RL: $nrl ($nrln normal, $nrli inverse, $nrlniss niss)"
echo "UD: $nud ($nudn normal, $nudi inverse, $nudniss niss)"
echo "5 movers: $n5linear linear, $n5nonlinear NISS'd"
read -r x
echo "$eofb"
echo "---"
echo "$eorl"
echo "---"
echo "$eoud"
printf '\n%s' "$prompt"
read -r x
done
}
practice_dr() {
nextscr="$(${nissy} scramble eo)"
while true; do
scr="$nextscr"
echo "Scramble: $scr"
nextscr="$(${nissy} scramble eo)"
soleo="$(${nissy} solve -o -p drud-eofb "$scr")"
neo="$(echo "$soleo" | grep -v '^$' | wc -l)"
leo="$(echo "$soleo" | head -n 1 | wc -w)"
solht="$(${nissy} solve -o -p drud "$scr")"
nht="$(echo "$solht" | grep -v '^$' | wc -l)"
lht="$(echo "$solht" | head -n 1 | wc -w)"
soleolr="$(${nissy} solve -o -p drrl-eofb "$scr")"
neolr="$(echo "$soleolr" | grep -v '^$' | wc -l)"
leolr="$(echo "$soleolr" | head -n 1 | wc -w)"
solhtlr="$(${nissy} solve -o -p drrl "$scr")"
nhtlr="$(echo "$solhtlr" | grep -v '^$' | wc -l)"
lhtlr="$(echo "$solhtlr" | head -n 1 | wc -w)"
read -r x
echo "DR on U/D: $leo moves ($neo solutions)"
if [ "$nht" != "$neo" ]; then
echo "Breaking EO: $lht moves ($nht solutions)"
fi
echo "DR on R/L: $leolr moves ($neolr solutions)"
if [ "$nhtlr" != "$neolr" ]; then
echo "Breaking EO: $lhtlr moves ($nhtlr solutions)"
fi
read -r x
echo "On U/D:"
echo "$soleo"
echo ""
if [ "$nht" != "$neo" ] || [ "$lht" != "$leo" ]; then
echo "Breaking EO:"
echo "$solht"
echo ""
fi
echo "On R/L:"
echo "$soleolr"
echo ""
if [ "$nhtlr" != "$neolr" ] || [ "$lhtlr" != "$leolr" ]; then
echo "Breaking EO:"
echo "$solhtlr"
echo ""
fi
printf '\n%s' "$prompt"
read -r x
done
}
practice_htr() {
nextscr="$(${nissy} scramble dr)"
while true; do
scr="$nextscr"
echo "Scramble: $scr"
nextscr="$(${nissy} scramble dr)"
sol="$(${nissy} solve -o -p htr "$scr")"
nsol="$(echo "$sol" | grep -v '^$' | wc -l)"
len="$(echo "$sol" | head -n 1 | wc -w)"
fin="$(${nissy} solve -o -p drfin "$scr")"
lenf="$(echo "$fin" | head -n 1 | wc -w)"
slice="$(${nissy} solve -o -p drslice "$scr")"
lens="$(echo "$slice" | head -n 1 | wc -w)"
read -r x
echo "$len moves ($nsol solutions)"
read -r x
echo "$sol"
if [ "$lenf" != "$lens" ]; then
echo ""
echo "Optimal leave slice ($lens):"
echo "$slice"
fi
echo ""
echo "Optimal DR finish ($lenf):"
echo "$fin"
printf '\n%s' "$prompt"
read -r x
done
}
practice_fin() {
nextscr="$(${nissy} scramble htr)"
while true; do
scr="$nextscr"
echo "Scramble: $scr"
nextscr="$(${nissy} scramble htr)"
sol="$(${nissy} solve -o -p drudslice "$scr")"
nsol="$(echo "$sol" | grep -v '^$' | wc -l)"
len="$(echo "$sol" | head -n 1 | wc -w)"
fin="$(${nissy} solve -o -p drudfin "$scr")"
nfin="$(echo "$fin" | grep -v '^$' | wc -l)"
lenf="$(echo "$fin" | head -n 1 | wc -w)"
opt="$(${nissy} solve -o -p "$scr")"
leno="$(echo "$opt" | head -n 1 | wc -w)"
read -r x
echo "Leave slice: $len moves ($nsol solutions)"
if [ "$lenf" != "$len" ]; then
echo "DR finish: $lenf moves"
fi
read -r x
echo "$sol"
if [ "$lenf" != "$len" ]; then
echo ""
echo "Optimal DR finish ($lenf):"
echo "$fin"
fi
if [ "$leno" != "$lenf" ]; then
echo ""
echo "Optimal DR-breaking ($leno):"
echo "$opt"
fi
printf '\n%s' "$prompt"
read -r x
done
}
"practice_$1" || usage
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