# Gavin Stark Psuedo Code
# 1. We remember that a is 1
# 2. We remember that b is 100
# 3. We remember that z is 0
# 4. We tell the user we are going to
#    guess a number between "a" and "b"
# 5. User chooses number
# 6. We remember our guess is (a+b) / 2
# 7. Tell the user that we are guessing the number "guess"
# 8. User chooses yes, no
# 9. If user chooses yes
#    then say we got it in z guesses
#    game is over

# Loop until guess is correct
# 10. If user chooses no
# 11. Ask if number is higher or lower than the number "guess"
# 12. If user chooses lower
# 13.  Make b equal to guess - 1
# 14.  go back to step 6
# 15. If user chooses higher
# 16.  Make a equal to guess + 1
# 17.  go back to step 6

min = 1
max = 100
tries = 0

puts "Welcome. I will play a number game with you. Think of a number between one and one hundered. I will try to guess that number. If you are ready to play, press the 'enter' button."
gets

loop do
  numberGuess = (min+max) / 2

  puts "Is the number #{numberGuess}? If #{numberGuess} is the number you were thinking of, enter y for 'yes'. If it was not, enter 'l' for me to guess lower, 'h' for me to guess higher."
  userAnswer = gets.chomp

  if userAnswer == "y"
  puts "I guessed right!"
  break

  elsif userAnswer == "l"
    max = numberGuess - 1

  elsif userAnswer == "h"
    min = numberGuess + 1
  end
end