add solar system file

solar_system.rb

@@ -0,0 +1,48 @@
+class SolarSystem
+
+attr_accessor :name, :planets
+
+  def initialize (planet_hash)
+    @name = planet_hash[:name]
+    @planets = []
+  end
+
+  def add_planet(planet)
+    @planets.push(planet)
+  end
+
+  def add_multiple_planets(planet_array)
+    planet_array.each do |plan|
+      @planets.push(plan)
+    end
+  end
+
+  def about
+  puts "Here are the planets in the #{@name} solar system:"
+  count = 1
+
+    @planets.each do |planet|
+     puts "#{count}. #{planet.name}"
+     count += 1
+    end
+    puts "#{count}. Exit"
+    puts "Which planet do you want to learn about?"
+    learn = gets.chomp.to_i
+    continue = true
+
+    while continue == true
+       if learn < count
+         planets[learn-1].about
+         puts "What planet do you want to learn about next?"
+         learn = gets.chomp.to_i
+       elsif learn == count
+         puts "Goodbye!"
+         continue = false
+       else
+         puts "I am sorry. I don't know what you mean. Please enter in a number from 1 to #{count-1} to learn about a planet, or #{count} to exit"
+         learn = gets.chomp.to_i
+       end
+    end
+  end
+
+end