Script para jugar Punto y Fama contra la "máquina"

point_fame.rb

# Punto y fama
# Created by: Erlinis Quintana
# Date: April 19 2015

def print_instructions
	puts """
		Instructions: Type a four digits number, without repeat any digits,
		until you guess the random number created by the computer. 
		After you entered the number you will get a hint, where:
		1. Each 'F' (Fame) means than one number exists and is located in the right position.
		2. Each '.' (Point) means than one number exists but is misplaced. \n
	    """
end

def generate_random_number
  digits = (0..9).to_a
  array_number = []
  while (array_number.length < 4) do
    random_index = 0 + Random.rand(9)
      if (digits[random_index] != nil) then
       array_number[array_number.length] = digits[random_index]
       digits[random_index] = nil
    end
  end
  array_number.join('')
end

@attempts = 0
@number = generate_random_number
@array_number = @number.to_s.split('')
@historial = Hash.new

def read_guess_number
  @attempts += 1
  print "Enter your guess #{@attempts}: "
  guess_number = gets.chomp.strip
  guess_number = (guess_number.length > 4) ? guess_number[0, 4] : guess_number
end

def evaluate_fame(guess_number)
  fames = ""
  new_array_guess = {}
  array_guess = guess_number.to_s.split('')
  
  for i in 0..3
    if (@array_number[i] == array_guess[i]) then
        fames += "F "
        new_array_guess[i] = nil
    else
        new_array_guess[i] = array_guess[i]
    end
  end
  return [fames, new_array_guess]
end

def evaluate_point(array_guess)
  points = ""
  for i in 0..3
    if (@array_number.include?(array_guess[i]) ) then
        points += ". "
    end
  end
  return points
end

def evaluate_guess_number(guess_number)
  fames, new_array_guess = evaluate_fame(guess_number)    
  points = evaluate_point(new_array_guess)
  @historial[guess_number] = "#{fames}#{points}"
end

def print_historial
  unless @historial.empty? then
    puts "------------------------"
    @historial.each { |key, value| 
      puts " #{key} > #{value} "
    }
    puts "------------------------"
    puts "\n"
  end
end


print_instructions

guess_number = 0
while !(guess_number == @number.to_s) do
  guess_number = read_guess_number
  evaluate_guess_number(guess_number)
  print_historial
end

puts "Congratulations, you rock! The number was #{@number}"