First pass at 'bagels' port.

05 Bagels/ruby/bagels.rb

@@ -0,0 +1,106 @@
+# Bagels
+# Number guessing game.
+# Original source unknown but suspected to be
+# Lawrence Hall of Science, U.C. Berkely
+
+def print_instructions
+  puts
+  puts 'I am thinking of a three-digit number. Try to guess'
+  puts 'my number and i will give you clues as follows:'
+  puts '   PICO   - one digit correct but in the wrong position'
+  puts '   FERMI  - one digit correct and in the right position'
+  puts '   BAGELS - no digits correct'
+end
+
+def generate_number_array
+  target = 0
+  target = rand(100..999) while target.to_s.split('').uniq.size < 3
+  target.to_s.split('')
+end
+
+def puts_clue_for(guess_array, target_array)
+  clues = [].tap do |clue|
+    guess_array.each_with_index do |n, i|
+      if target_array[i] == n
+        clue << 'FERMI'
+      elsif target_array.include?(n)
+        clue << 'PICO'
+      end
+    end
+  end
+
+  # sort clues so that FERMIs come before PICOs, but
+  # you don't know which response responds to which number
+  puts clues.length > 0 ? clues.sort.join(' ') : 'BAGELS'
+end
+
+player_points = 0
+desire_to_play = true
+
+puts 'Bagels'.center(72)
+puts 'Creative Computing  Morristown, New Jersey'.center(72)
+
+5.times { puts }
+
+puts 'Would you like to the rules? [Y]es or [N]o.'
+instructions_request = gets.chomp.downcase
+
+print_instructions if %w[yes y].include?(instructions_request)
+
+while desire_to_play
+  target_number_array = generate_number_array
+
+  2.times { puts }
+  puts 'OK. I have a number in mind.'
+
+  guess_count = 0
+  guess_array = []
+
+  while (guess_array != target_number_array) && guess_count < 20
+    guess_count += 1
+
+    puts "Guess ##{guess_count}:"
+
+    guess = gets.chomp
+
+    if guess =~ /[^1-9]/
+      puts 'What?'
+      next
+    end
+
+    if guess.length != 3
+      puts 'Try guessing a three digit number'
+      next
+    end
+
+    guess_array = guess.split('')
+
+    if guess_array.uniq.size < 3
+      puts 'Oh, I forgot to tell you: the number I have in mind has no two digits the same.'
+      next
+    end
+
+    if guess_array != target_number_array
+      puts_clue_for(guess_array, target_number_array)
+      puts
+    end
+  end
+
+  if guess_array == target_number_array
+    player_points += 1
+
+    puts 'You got it!!!'
+    puts
+  else
+    puts 'Oh well.'
+    puts "That's twenty guesses. My number was #{target_number_array.join('')}."
+  end
+
+  puts
+  puts 'Would you like to play again? [Y]es or [N]o'
+  play_again_request = gets.chomp
+  desire_to_play = %w[yes y].include?(play_again_request)
+end
+
+puts "A #{player_points} point bagels buff!!"
+puts 'Hope you had fun. Bye.'