3_guessing_game_solo_challenge

Week 5 Home

U2.W5: Build a Simple Guessing Game SOLO CHALLENGE

Learning Objectives

• Break down problems into implementable pseudocode
• Implement a basic Ruby class and identify when to use instance variables
• Use if/else statements, string methods, while/until loops, Enumerable#each methods
• Explain how instance variables and methods represent the characteristics and actions of an object

Background

In this challenge you want to create a simple guessing game. Think in terms of when you were 7 and asked your friends to identify the number you were thinking.

Your GuessingGame class should be initialized with an integer called answer.

Define an instance method GuessingGame#guess which takes an integer called guess as its input. guess should return the symbol :high if the guess is larger than the answer, :correct if the guess is equal to the answer, and :low if the guess is lower than the answer.

Define an instance method GuessingGame#solved? which returns true if the most recent guess was correct and false otherwise.

For example,

game = GuessingGame.new(10)

game.solved?   # => false

game.guess(5)  # => :low
game.guess(20) # => :high
game.solved?   # => false

game.guess(10) # => :correct
game.solved?   # => true

Or

game = GuessingGame.new rand(100)
last_guess  = nil
last_result = nil

until game.solved?
  unless last_guess.nil?
    puts "Oops!  Your last guess (#{last_guess}) was #{last_result}."
    puts ""
  end

  print "Enter your guess: "
  last_guess  = gets.chomp.to_i
  last_result = game.guess(last_guess)
end

puts "#{last_guess} was correct!"

Directions

1. Run the Rspec tests, and then translate at least 3 of the tests into Driver Test Code and include it in the driver code section. If the tests are failing to catch a problem, try writing your own driver test code for it.
2. Pseudocode
3. Initial Solution
4. Refactored Solution
5. Reflect
6. Sync your changes (push your solution) to Github
7. Review