Question

RUBY PROBLEM:

"You should thoroughly test all your Ruby scripts to make sure they are running as expected. With the Number Guessing game, that means playing the game repeatedly. To make this easier on you, add a hidden “cheat” to the game that allow you to display the game’s number.

To implement this change, modify the game so that, in addition to accepting a reply of y or n when prompting the player for permission to begin the game, it accepts a reply of c (for cheat). Next, modify the Game class’s play_game method so that it displays the game’s number when it’s run in cheat mode."

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# Define custom classes ---------------------------------------------------

#Define a class representing the console window

class Screen

  def cls  #Define a method that clears the display area

    puts ("\n" * 25)  #Scroll the screen 25 times

    puts "\a"  #Make a little noise to get the player's attention

  end

  

  def pause    #Define a method that pauses the display area

    STDIN.gets  #Execute the STDIN class's gets method to pause script

                #execution until the player presses the enter key

  end

  

end

#Define a class representing the Ruby Number Guessing Game

class Game

  #This method displays the game's opening screen

  def display_greeting

  

    Console_Screen.cls  #Clear the display area

  

    #Display welcome message

    print "\t\t  Welcome to the Ruby Number Guessing Game!" +

    "\n\n\n\n\n\n\n\n\n\n\n\n\n\nPress Enter to " +

               "continue."

  

  Console_Screen.pause       #Pause the game

  end

  #Define a method to be used to present game instructions

  def display_instructions

    

    Console_Screen.cls       #Clear the display area

    puts "INSTRUCTIONS:\n\n"  #Display a heading

    #Display the game's instructions

    puts "This game randomly generates a number from 1 to 100 and"

    puts "challenges you to identify it in as few guesses as possible."

    puts "After each guess, the game will analyze your input and provide"

    puts "you with feedback. You may take as many turns as you need in"

    puts "order to guess the game's secret number.\n\n\n"

    puts "Good luck!\n\n\n\n\n\n\n\n\n"

    print "Press Enter to continue."

    Console_Screen.pause       #Pause the game

    

  end

  #Define a method that generates the game's secret number

  def generate_number

  

    #Generate and return a random number between 1 and 100

    return randomNo = 1 + rand(100)

  

  end

  #Define a method to be used control game play

  def play_game

    #Call on the generate_number method in order to get a random number

    number = generate_number  

    #Loop until the player inputs a valid answer

    loop do

  

      Console_Screen.cls       #Clear the display area

    

      #Prompt the player to make a guess

      print "\nEnter your guess and press the Enter key: "

    

      reply = STDIN.gets  #Collect the player's answer

      reply.chop!         #Remove the end of line character

      reply = reply.to_i  #Convert the player's guess to an integer

    

      #Validate the player's input only allowing guesses between 1 and 100

      if reply < 1 or reply > 100 then

        redo  #Redo the current iteration of the loop

      end

    

      #Analyze the player's guess to determine if it is correct

      if reply == number then    #The player's guess was correct

        Console_Screen.cls        #Clear the display area

        print "You have guessed the number! Press enter to continue."

        Console_Screen.pause      #Pause the game

        break  #Exit loop

      elsif reply < number then  #The player's guess was too low

        Console_Screen.cls        #Clear the display area

        print "Your guess is too low! Press Enter to continue."

        Console_Screen.pause      #Pause the game

      elsif reply > number then  #The player's guess was too high

        Console_Screen.cls        #Clear the display area

        print "Your guess is too high! Press Enter to continue."

        Console_Screen.pause      #Pause the game

      end

      

    end

  end

  #This method displays the information about the Ruby Number Guessing Game

  def display_credits

  

    Console_Screen.cls  #Clear the display area

  

    #Thank the player and display game information

    puts "\t\tThank you playing the Ruby Number Guessing Game.\n\n\n\n"

    puts "\n\t\t\t Developed by Jerry Lee Ford, Jr.\n\n"

    puts "\t\t\t\t  Copyright 2010\n\n"

    puts "\t\t\tURL: http://www.tech-publishing.com\n\n\n\n\n\n\n\n\n\n"

  end

end

# Main Script Logic -------------------------------------------------------

Console_Screen = Screen.new  #Instantiate a new Screen object

SQ = Game.new                #Instantiate a new Game object

#Execute the Game class's display_greeting method

SQ.display_greeting

answer = ""

#Loop until the player enters y or n and do not accept any other input

loop do

  Console_Screen.cls  #Clear the display area

  #Prompt the player for permission to start the game

  print "Are you ready to play the Ruby Number Guessing Game? (y/n): "

  answer = STDIN.gets  #Collect the player's response

  answer.chop!  #Remove any extra characters appended to the string

  #Terminate the loop if valid input was provided

  break if answer == "y" || answer == "n"  #Exit loop

end

#Analyze the player's input

if answer == "n"  #See if the player elected not to take the game

  Console_Screen.cls  #Clear the display area

  #Invite the player to return and play the game some other time

  puts "Okay, perhaps another time.\n\n"

else  #The player wants to play the game

    #Execute the Game class's display_instructions method

    SQ.display_instructions

  loop do

    

    #Execute the Game class's play_game method

    SQ.play_game

    Console_Screen.cls  #Clear the display area

    #Prompt the player for permission start a new round of play

    print "Would you like to play again? (y/n): "

    playAgain = STDIN.gets  #Collect the player's response

    playAgain.chop!  #Remove any extra characters appended to the string

  

    break if playAgain == "n"  #Exit loop

  

  end

  

  #Call upon the Game class's determine_credits method in order to thank

  #the player for playing the game and to display game information

  SQ.display_credits

  

end

Answer 1

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Code:

# Define custom classes ---------------------------------------------------

#Define a class representing the console window

class Screen

def cls #Define a method that clears the display area

    puts ("\n" * 25) #Scroll the screen 25 times

    puts "\a" #Make a little noise to get the player's attention

end

def pause    #Define a method that pauses the display area

    STDIN.gets #Execute the STDIN class's gets method to pause script

                #execution until the player presses the enter key

end

end

#Define a class representing the Ruby Number Guessing Game

class Game

#This method displays the game's opening screen

def display_greeting

    Console_Screen.cls #Clear the display area

    #Display welcome message

    print "\t\t Welcome to the Ruby Number Guessing Game!" +

    "\n\n\n\n\n\n\n\n\n\n\n\n\n\nPress Enter to " +

               "continue."

Console_Screen.pause       #Pause the game

end

#Define a method to be used to present game instructions

def display_instructions

    Console_Screen.cls       #Clear the display area

    puts "INSTRUCTIONS:\n\n" #Display a heading

    #Display the game's instructions

    puts "This game randomly generates a number from 1 to 100 and"

    puts "challenges you to identify it in as few guesses as possible."

    puts "After each guess, the game will analyze your input and provide"

    puts "you with feedback. You may take as many turns as you need in"

    puts "order to guess the game's secret number.\n\n\n"

    puts "Good luck!\n\n\n\n\n\n\n\n\n"

    print "Press Enter to continue."

    Console_Screen.pause       #Pause the game

end

#Define a method that generates the game's secret number

def generate_number

    #Generate and return a random number between 1 and 100

    return randomNo = 1 + rand(100)

end

#Define a method to be used control game play, added a parameter for cheat mode

def play_game(mode)

   #Call on the generate_number method in order to get a random number

    number = generate_number

    #Loop until the player inputs a valid answer

    loop do

      Console_Screen.cls       #Clear the display area

      #in cheat mode display the number as well

      if mode == "c" then

        print "\nRunning in cheat mode and number is : ", number

      end

      #Prompt the player to make a guess

      print "\nEnter your guess and press the Enter key: "

      reply = STDIN.gets #Collect the player's answer

      reply.chop!         #Remove the end of line character

      reply = reply.to_i #Convert the player's guess to an integer

      #Validate the player's input only allowing guesses between 1 and 100

      if reply < 1 or reply > 100 then

        redo #Redo the current iteration of the loop

      end

      #Analyze the player's guess to determine if it is correct

      if reply == number then    #The player's guess was correct

        Console_Screen.cls        #Clear the display area

        print "You have guessed the number! Press enter to continue."

        Console_Screen.pause      #Pause the game

        break #Exit loop

      elsif reply < number then #The player's guess was too low

        Console_Screen.cls        #Clear the display area

        print "Your guess is too low! Press Enter to continue."

        Console_Screen.pause      #Pause the game

      elsif reply > number then #The player's guess was too high

        Console_Screen.cls        #Clear the display area

        print "Your guess is too high! Press Enter to continue."

        Console_Screen.pause      #Pause the game

      end

    end

end

#This method displays the information about the Ruby Number Guessing Game

def display_credits

    Console_Screen.cls #Clear the display area

    #Thank the player and display game information

    puts "\t\tThank you playing the Ruby Number Guessing Game.\n\n\n\n"

    puts "\n\t\t\t Developed by Jerry Lee Ford, Jr.\n\n"

    puts "\t\t\t\t Copyright 2010\n\n"

    puts "\t\t\tURL: http://www.tech-publishing.com\n\n\n\n\n\n\n\n\n\n"

end

end

# Main Script Logic -------------------------------------------------------

Console_Screen = Screen.new #Instantiate a new Screen object

SQ = Game.new                #Instantiate a new Game object

#Execute the Game class's display_greeting method

SQ.display_greeting

answer = ""

#Loop until the player enters y or n and do not accept any other input

loop do

Console_Screen.cls #Clear the display area

#Prompt the player for permission to start the game

print "Are you ready to play the Ruby Number Guessing Game? (y/n): "

answer = STDIN.gets #Collect the player's response

answer.chop! #Remove any extra characters appended to the string

#Terminate the loop if valid input was provided, accept the cheat mode as c

break if answer == "y" || answer == "n" || answer == "c" #Exit loop

end

#Analyze the player's input

if answer == "n" #See if the player elected not to take the game

Console_Screen.cls #Clear the display area

#Invite the player to return and play the game some other time

puts "Okay, perhaps another time.\n\n"

else #The player wants to play the game

    #Execute the Game class's display_instructions method

    SQ.display_instructions

loop do

    #Execute the Game class's play_game method

    SQ.play_game answer #pass the answer to play_game method

    Console_Screen.cls #Clear the display area

    #Prompt the player for permission start a new round of play

    print "Would you like to play again? (y/n): "

    playAgain = STDIN.gets #Collect the player's response

    playAgain.chop! #Remove any extra characters appended to the string

    break if playAgain == "n" #Exit loop

end

#Call upon the Game class's determine_credits method in order to thank

#the player for playing the game and to display game information

SQ.display_credits

End

===========modification in code========

Output: