Laura Robertson -- Carets

solar2.rb

@@ -0,0 +1,130 @@
+class Planet
+  attr_accessor :name, :diameter, :orbit, :day, :moons, :distance_from_the_sun
+  attr_reader :greatwall_compare
+
+  def initialize(name, diameter, orbit, day, moons, distance_from_the_sun)
+    @name = name
+    @diameter = diameter
+    @orbit = orbit
+    @day = day
+    @moons = moons
+    @distance_from_the_sun = distance_from_the_sun
+    @greatwall_compare = greatwall_compare
+  end
+
+  # When you are tired of reading the word planets, spaceorbs
+  def spaceorbs_details
+    puts "\nLet's get to know #{@name}."
+    puts "It has #{@moons} moons and its diameter is #{@diameter} miles!"
+    puts "A year is #{@orbit} Earth days. A day is #{@day} hours."
+    puts "Its pretty far away from the sun, #{@distance_from_the_sun} miles!"
+    puts comparison
+  end
+
+  # Attr_reader
+  def comparison
+    greatwall = 5500
+    difference = @distance_from_the_sun / greatwall
+    puts "Its distance from the sun is like #{difference} Great walls."
+  end
+
+  def return_spaceorbs
+    summary = "
+    Name: #{@name}
+    Diameter: #{@diameter}
+    Orbit: #{@orbit}
+    Day: #{@day}
+    Moons: #{@moons}
+    Sun distance: #{@distance_from_the_sun}
+    "
+    return summary
+  end
+end
+
+
+class SolarSystem
+  attr_accessor :planets
+
+  def initialize(input_planets)
+    @planets = input_planets
+  end
+
+  # User adds a planet
+  def add_planets()
+    puts "Name of planet:"
+    name = gets.chomp
+    puts "Diameter? (in miles)"
+    diameter = gets.chomp
+    puts "Year length? (in Earth days)"
+    orbit = gets.chomp
+    puts "Day length? (in Earth hours)"
+    day = gets.chomp
+    puts "Number of moons?"
+    moons = gets.chomp
+    puts "Distance from sun? (in miles)"
+    distance_from_the_sun = gets.chomp.to_i
+
+    new_planet = Planet.new(name, diameter, orbit, day, moons, distance_from_the_sun)
+    @planets << new_planet
+  end
+
+  # Numbered planet list return
+  def return_planets
+    new_array = []
+    @planets.each_index do |i|
+      new_array << (i + 1).to_s + ". " + @planets[i].name.to_s
+    end
+    return new_array.join("\n")
+  end
+
+  # User interface, loops until 'exit' or 'n'
+  def user_choice
+    puts "\nChoose a planet you would like to learn more about:"
+    puts "1. Mercury 2. Venus 3. Earth 4. Mars\n5. Jupiter 6. Saturn 7. Uranus 8. Neptune\n9. Add new 10. Exit\n\n"
+
+    user_answer = gets.chomp.capitalize
+
+    case user_answer
+    when "Exit"
+      puts "Goodbye!"
+      exit
+    when "Add new"
+      add_planets()
+      puts @planets.last.spaceorbs_details
+    else
+      @planets.each_index do |i|
+        if user_answer == @planets[i].name
+          puts @planets[i].spaceorbs_details
+        end
+      end
+    end
+
+    puts "Go again? y/n"
+    again = gets.chomp.upcase
+
+    if again == "Y"
+      user_choice
+    else
+      puts "Goodbye!"
+      exit
+    end
+  end
+
+end
+
+# Name, diameter, year/orbit, day, moons, distance_from_the_sun
+Mercury = Planet.new("Mercury", 3031, 88, 58.6, 0, 57900000)
+Venus = Planet.new("Venus", 7521, 225, 241, 0, 108160000)
+Earth = Planet.new("Earth", 7626, 365.24, 24, 1, 149600000)
+Mars = Planet.new("Mars", 4217, 687, 24.5, 2, 227936640)
+Jupiter = Planet.new("Jupiter", 86881, 4346, 9.8, 66, 778369000)
+Saturn = Planet.new("Saturn", 74900, 10775, 10.5, 62, 1427034000)
+Uranus = Planet.new("Uranus", 31763, 30680, 18, 27, 2870658186)
+Neptune = Planet.new("Neptune", 30775, 60264, 19, 14, 4496976000)
+
+all_planets = [Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune]
+
+milky_way_array = SolarSystem.new(all_planets)
+
+milky_way_array.user_choice
+milky_way_array.return_planets