kkchu791

class Person
  attr_accessor :balance

  def balance_test
    p "Your balance measurement is: #{@balance}"
    case @balance
    when 500...1000
      "You could be a gymnast"
    when 100...500
      "You have normal balance"

kkchu791

def save_game(file)
  score = 1000
  open(file, "w") do |f|
    f.puts(score)
    f.puts(Time.new.to_i)
  end
end

def load_game(file)
  open(file, "r") do |f|

kkchu791

class Person
  attr_accessor :balance

  def balance_test?
    p "Your balance measurement is: #{@balance}"
    if @balance > 500
      "You could be a gymnast"
    elsif @balance > 100 && @balance < 500
      "You have normal balance"
    else

kkchu791

class Person
  attr_reader :balance

  def balance(balance)
    @balance = balance
  end

  def balance_test?
    p "Your balance measurement is: #{@balance}"
    if @balance > 500

kkchu791

# how do you mix module "Mixin" into class Charlie, such that I can call Charlie.method1? 

module Mixin
  def method1
    "method1"
  end
end

class Charlie
  include Mixin

kkchu791

#Write a class called Person that has balance as an instance variable and make it readable via an accessor.

class Person
  
  attr_reader :balance

  def initialize
  	@balance = 400
  end
end

kkchu791

class Logger
  def self.log(random)
    File.open("./logfile.txt", "a") { |f| f.puts "#{random}" }
  end
end

class Charlie
  def random_number	
    Logger.log(rand(10000000))
  end

kkchu791

I, [2015-11-11T12:43:21.813873 #53754]  INFO -- random number: 7358696
I, [2015-11-11T12:43:21.814242 #53754]  INFO -- random number: 4563567

kkchu791

class Charlie
  def initialize(guitar)
    @guitar = guitar
  end

  def play(guitar)
    guitar.type == 'electric' ? guitar.sound.upcase : guitar.sound.downcase
  end

end

kkchu791

# I think the problem lies in class Charlie not being able to inherit the instance variables from class Guitar. 
#For example, when we run this code:


class Guitar 
  def initialize(brand, color)
  	@color = color
  	@brand = brand