Queues - Andrea Valliere - solar_system.rb

solar_system.rb

@@ -0,0 +1,72 @@
+# Create Planet class with name and several other attributes
+class Planet
+  attr_accessor :name, :order_from_sun, :moon_count, :diameter, :day_length, :atmosphere_contents
+
+  def initialize(planets_hash)
+    @name = planets_hash[:name]
+    @order_from_sun = planets_hash[:order_from_sun]
+    @moon_count = planets_hash[:moon_count]
+    @diameter = planets_hash[:diameter]
+    @day_length = planets_hash[:day_length]
+    @atmosphere_contents = planets_hash[:atmosphere_contents]
+  end
+end
+
+# Create a SolarSystem class that has an attribute "planets" that has zero to many Planet instances
+class SolarSystem
+  attr_accessor :planets
+
+  def initialize
+    @planets = []
+  end
+
+  # Create methods that 1.) add a single planet to a solar system 2.) add a list of planets to an existing list of planets
+
+  def add_planet(name, order_from_sun, moon_count, diameter, day_length, atmosphere_contents)
+    @planets.push(name, order_from_sun, moon_count, diameter, day_length, atmosphere_contents)
+  end
+
+  def add_many(planets_array)
+    planets_array.each do |entry|
+      @planets.push(entry)
+    end
+
+  end
+end
+
+# Add a planet to a new SolarSystem instance using methods from the SolarSystem class
+
+kuiper_belt = SolarSystem.new
+kuiper_belt.add_planet("Pluto", "9th", "1", "2,234 miles", "7 hours, 8 minutes", "Nitrogen and Helium")
+
+# Instantiate new planet objects with an associated name. These are pushing to an array so they can be easily moved to a SolarSystem class using one of the methods defined in that class
+
+planets = []
+
+planets << earth = Planet.new(name: "Earth", order_from_sun: "3rd", moon_count: "1", diameter: "7,926 miles", day_length: "23 hours, 56 minutes", atmosphere_contents: "Nitrogen and Oxygen")
+
+planets << mercury = Planet.new(name: "Mercury", order_from_sun: "1st", moon_count: "0", diameter: "3,031 miles", day_length: "59 days", atmosphere_contents: "Sodium and Helium")
+
+planets << venus = Planet.new(name: "Venus", order_from_sun: "2nd", moon_count: "0", diameter: "7,521 miles", day_length: "243 days", atmosphere_contents: "Carbon Dioxide and Nitrogen")
+
+planets << mars = Planet.new(name: "Mars", order_from_sun: "4th", moon_count: "2", diameter: "4,222 miles", day_length: "24 hours, 37 minutes", atmosphere_contents: "Carbon Dioxide and Argon")
+
+planets << jupiter = Planet.new(name: "Jupiter", order_from_sun: "5th", moon_count: "66", diameter: "88,846 miles", day_length: "9 hours, 55 minutes", atmosphere_contents: "Hydrogen, and Helium")
+
+planets << saturn = Planet.new(name: "Saturn", order_from_sun: "6th", moon_count: "62", diameter: "74,900 miles", day_length: "10 hours, 39 minutes", atmosphere_contents: "Hydrogen, and Helium")
+
+planets << uranus = Planet.new(name: "Uranus", order_from_sun: "7th", moon_count: "27", diameter: "31,763 miles", day_length: "17 hours, 14 minutes", atmosphere_contents: "Hydrogen, Helium, and Methane")
+
+planets << neptune = Planet.new(name: "Neptune", order_from_sun: "8th", moon_count: "13", diameter: "30,779 miles", day_length: "16 hours, 7 minutes", atmosphere_contents: "Hydrogen, Helium, and Methane")
+
+# This pushes the planets array into a new SolarSystem class.
+our_solar_system = SolarSystem.new
+our_solar_system.add_many(planets)
+
+# Display information about all of the planets of our solar system
+puts "THE PLANETS of our SOLAR SYSTEM"
+puts
+
+planets.each do |instance|
+  puts "#{instance.name.upcase} is the #{instance.order_from_sun} planet from the sun. #{instance.name} has #{instance.moon_count} moon(s) and a diameter of #{instance.diameter}. It takes #{instance.day_length} to spin on its axis (that's one #{instance.name} day!) and it's atmosphere is composed of #{instance.atmosphere_contents}."
+end