Ana- Solar System Final

main.rb

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+#main.rb
+require_relative 'planet'
+require_relative 'solar_system'
+
+#Initialize Solar System
+def create_solar_system
+  #Create an instance of SolarSystem and add planet Wave 2, Part 4
+
+  solar_system =SolarSystem.new('Sun')
+  #Each planet is an instance of the Solar System
+
+  mercury =Planet.new('Mercury','gray',3.285e23, '69.306 ', 'Mercury has the most craters in the Solar System.')
+  solar_system.add_planets(mercury)
+
+  venus =Planet.new('Venus', 'white',"4.867e24","107.84 ","Venus spins clockwise on its axis")
+  solar_system.add_planets(venus)
+
+  earth =Planet.new('Earth', 'blue-green',5.972e24, 1.496e8, 'Only planet known to support life')
+  solar_system.add_planets(earth)
+
+  mars =Planet.new('Mars','red','6.39e23', '210.69', 'The NASA Curiosity Rover landed on Mars')
+  solar_system.add_planets(mars)
+
+  jupiter =Planet.new('Jupiter','orange-white','1.898e27','767.92 ','Jupiter is the largest planet in our solar system')
+  solar_system.add_planets(jupiter)
+
+  return solar_system
+end
+
+#Method to learn more about each planet,   Wave 3, part 1 & 2
+def get_planet_details(solar_system)
+  print "What is the name of the planet you want to learn about?"
+  planet_name =gets.chomp.strip
+
+  # the found planet is an instance of planet class
+  found_planet = solar_system.find_planet_by_name(planet_name)
+
+  puts found_planet.summary
+end
+
+#Method that will ask user to create a new planet, Wave 3 Part 3
+def user_add_planet(solar_system)
+  print "What planet do you want to add?"
+  name = gets.chomp
+  print "what is the color of the planet?"
+  color = gets.chomp
+  print "what is the mass in kg of the planet? "
+  mass_kg = gets.chomp.to_i
+  print "what is the distance from the sun for the planet?"
+  distance_sun = gets.chomp.to_i
+  print "what is a fun fact about the planet?"
+  fun_fact= gets.chomp
+
+  user_planet = Planet.new(name,color,mass_kg,distance_sun,fun_fact)
+  solar_system.add_planets(user_planet)
+
+end
+
+def main
+  my_solar_system = create_solar_system
+  puts "Welcome to Solar System, please select a choice: "
+  puts "List planets\nPlanet details\nAdd planet\nExit\n"
+
+  user_input = gets.chomp.downcase.strip
+
+  until user_input =="exit"
+    case user_input
+    when "list planets"
+    puts my_solar_system.list_planets
+    when "planet details"
+      puts get_planet_details(my_solar_system)
+    when "add planet"
+      user_add_planet(my_solar_system)
+    else
+      puts "Invalid option.Program will exit."
+    end
+    puts"Please select a valid choice:"
+    user_input = gets.chomp.downcase.strip
+  end
+end
+main

planet.rb

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+#Wave 1 - Create a class Planet
+class Planet
+  attr_reader :name, :color, :mass_kg, :distance_from_sun_km, :fun_fact
+  #Create a constructor which takes 5 parameters Wave 1, Part 2
+  def initialize (name, color, mass_kg, distance_from_sun_km, fun_fact)
+    @name = name
+    @color = color
+    @mass_kg = mass_kg
+    @distance_from_sun_km = distance_from_sun_km
+    @fun_fact = fun_fact
+
+  end
+
+  #Create a method that returns a string with the summary of a planet Wave 4 - Part 4
+  def summary
+    summary ="Planet #{name} is the color #{color} and it weights #{mass_kg}. and its #{distance_from_sun_km} km away from the sun. Here's a fun fact: #{fun_fact}."
+    return summary
+  end
+end

solar_system.rb

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+#Wave 2
+# Create a new class called SolarSystem Wave 1, Part 1
+class SolarSystem
+  attr_reader :star_name, :planets
+
+  #create a constructor with a parameter star_name
+  def initialize(star_name)
+    @star_name = star_name
+    @planets = []
+  end
+
+  #create a method to add planet with a parameter called planet --> Wave 2, Part 2
+  def add_planets(planet)
+    @planets << planet
+  end
+
+  #Create a method to return a string with a list of planets --> Wave 2, Part 3
+  def list_planets
+    list= "Planets orbiting the #{star_name}:\n"
+    @planets.each_with_index do |planet,i|
+      list += "\n#{i + 1}.#{planet.name}"
+    end
+    list
+  end
+
+  #Create a method to find the planet by name Wave 2, Part 5
+
+  def find_planet_by_name(planet_name)
+    @planets.each {|planet|return planet if planet.name.upcase ==planet.name.upcase}
+
+    raise ArgumentError, "#{planet_name} is not in solar system"
+  end
+
+end