#!/bin/bash
# states - A state capital guessing game. Requires the state capitals
#   data file at http://www.intuitive.com/wicked/examples/state.capitals.txt.

db="/usr/lib/games/state.capitals.txt"     # Format is State[tab]City

if [ ! -r "$db" ] ; then
  echo "$0: Can't open $db for reading." >&2
  echo "(get http://www.intuitive.com/wicked/examples/state.capitals.txt" >&2
  echo "save the file as $db and you're ready to play!)" >&2
  exit 1
fi

guesses=0; correct=0; total=0

while [ "$guess" != "quit" ] ; do
  
  thiskey="$(randomquote $db)"
  
  # $thiskey is the selected line. Now let’s grab state and city info,
  # then also have "match" as the all-lowercase version of the city name

  state="$(echo $thiskey | cut -d\   -f1 | sed 's/-/ /g')"
   city="$(echo $thiskey | cut -d\   -f2 | sed 's/-/ /g')"
  match="$(echo $city | tr '[:upper:]' '[:lower:]')"

  guess="??" ; total=$(( $total + 1 )) ;

  echo ""
  echo "What city is the capital of $state?"

  # Main loop where all the action takes place. Script loops until
  # city is correctly guessed, or the user types "next" to 
  # skip this one, or "quit" to quit the game

  while [ "$guess" != "$match" -a "$guess" != "next" -a "$guess" != "quit" ]
  do
    /bin/echo -n "Answer: "
    read guess

    if [ "$guess" = "$match" -o "$guess" = "$city" ] ; then
      echo ""
      echo "*** Absolutely correct!  Well done! ***"
      correct=$(( $correct + 1 ))
      guess=$match
    elif [ "$guess" = "next" -o "$guess" = "quit" ] ; then
      echo ""
      echo "$city is the capital of $state."  # what you SHOULD have known 
    else
      echo "I'm afraid that's not correct."
    fi 
  done

done

echo "You got $correct out of $total presented."
exit 0