Brenda Rios - Solar System - Octos

solar_system.rb

@@ -0,0 +1,157 @@
+# classes
+class Planet
+
+  attr_reader :name, :moons, :distance_fromsun, :mass, :orbit_period
+
+  def initialize(name, moons, distance_fromsun, mass, orbit_period)
+    @name = name
+    @moons = moons
+    @distance_fromsun = distance_fromsun
+    @mass = mass
+    @orbit_period = orbit_period
+  end
+
+# The method attributes returns the information of the planet selected by the user in the interface
+  def attributes
+    return "\n Name: #{@name}\n Moons: #{@order}\n Distance from the Sun: #{@distance_fromsun}\n Mass: #{@diameter}\n Orbit Period = #{@orbit_period}\n "
+  end
+
+end
+
+class SolarSystem
+
+  attr_accessor  :planets
+
+  def initialize(planets)
+    @planets = planets
+  end
+
+  def add_planet(planet)
+    @planets.push(planet)
+  end
+
+  def list_planets
+    list = ""
+    @planets.each_with_index do |planet, i|
+      list += "#{i+1} #{planet.name}\n"
+    end
+    return list
+  end
+
+end
+
+# Instances
+planet_A = Planet.new('Mercury','0','57,909,227 km','38', '88 days')
+planet_B = Planet.new('Venus', '0','108,209,475 km','95', '225 days')
+planet_C = Planet.new('Earth','1','149,598,262 km','211','365.24 days')
+planet_D = Planet.new('Mars','2','227,943,824 km ', '408','1.9 years')
+planet_E = Planet.new('Jupiter','1','778,340,821 km ','38','11.9 years')
+
+planets = [planet_A, planet_B, planet_C, planet_D, planet_E]
+system_ = SolarSystem.new(planets)
+
+# Method for the user to create a new planet
+def new_planet(solar)
+
+  # The loop will enable the user to continue adding new planets until wanted.
+  user_create = " "
+  until user_create == "N"
+    puts "Let's build your planet's details: "
+    print "Name: "
+    name = gets.chomp
+    print "Moons: "
+    order = gets.chomp
+    print "Distance from the sun: "
+    distance = gets.chomp
+    print  "Mass: "
+    diameter = gets.chomp
+    print "Orbit period: "
+    orbit = gets.chomp
+
+    user_planet = Planet.new(name, order, distance, diameter, orbit)
+    solar.add_planet(user_planet)
+
+    puts "----Here's the information of your planet: "
+    puts user_planet.attributes
+
+    puts "----Updated Solar System list: "
+    print solar.list_planets
+
+    puts "\nWould you like to create another planet?: Enter Y for yes and N for no: "
+    user_create = gets.chomp.upcase
+  end
+end
+
+# Method that prints the information of the planet selected by the user
+def read_aboutplanets(system_)
+
+    print "\nSelect a planet by entering its corresponding number from the list above: "
+    planet_selected  = gets.chomp.to_i
+
+    if planet_selected <= system_.planets.length && planet_selected >= 1
+      puts system_.planets[planet_selected - 1].attributes
+
+    else
+      puts "\nInvalid input. Please enter a number between 1 and #{system_.planets.length}"
+      again(system_)
+    end
+
+end
+
+# Method for the user to choose to create or read about a planet during interface
+def interface(system_)
+
+  print "\nEnter R to read about a planet or C to create a planet: "
+  user_input1 = gets.chomp.upcase
+
+  case user_input1
+  when "C"
+    new_planet(system_)
+    again(system_)
+  when "R"
+    read_aboutplanets(system_)
+    again(system_)
+  else
+    puts "Not a valid input"
+    again(system_)
+  end
+
+end
+
+# Method to ask the user if wants to continue running the program
+# or to change between creating a new planet or reading about a current planet.
+# the list of planets will be updated if the user creates a planet before.
+def again(system_)
+
+  print "\nWould you like to continue? Enter Y for yes and N for no:: "
+  user_input2 = gets.chomp.upcase
+
+  case user_input2
+  when "Y"
+    puts "\nUpdated list of planets"
+    print system_.list_planets
+    interface(system_)
+  when "N"
+    puts "\nThank you for visiting our Solar System Program!"
+    exit
+  else
+    puts "\nNot a valid input!"
+  end
+
+end
+
+# Welcome message for user
+puts "Hi Welcome to our Solar System!"
+
+puts "\nTake a look to our current planet's list:"
+
+# The current planets list will be printed
+print system_.list_planets
+
+# Planets list will be updated
+interface(system_)
+
+# Planets list will be updated
+again(system_)
+
+puts "\nThank you for visiting our Solar System Program!"