Solar System Submission

main.rb

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+require_relative 'planet'
+require_relative 'solar_system'
+
+def main
+earth = Planet.new('Earth', 'blue-green', 5.972e24, 1.496e8, 'Only planet known to support life')
+mars = Planet.new('Mars', 'red', 6.4169e23, 2.2794e8, 'Mars had water in the ancient past')
+
+solar_system = SolarSystem.new('Sun')
+
+solar_system.add_planet(earth)
+solar_system.add_planet(mars)
+
+list = solar_system.list_planets
+
+
+def user_choice
+  puts "What do you like to do?"
+  puts "- list planets"
+  puts "- planet details"
+  puts "- add planet"
+  puts "- exit"
+end
+
+def line
+  puts "-" * 40
+end
+
+
+line
+puts "Welcome to Solar System Planets"
+line
+user_choice
+
+
+user_input = gets.chomp
+until user_input == "exit"
+
+  if user_input == "list planets"
+    puts list
+    line
+    user_choice
+    user_input = gets.chomp
+
+  elsif user_input == "planet details"
+    puts "Please enter the name of the Planet you like to know more about"
+    user_planet_choice = gets.chomp
+    found_planet = solar_system.find_planet_by_name(user_planet_choice)
+    if found_planet
+      puts found_planet.summary
+      user_choice
+      user_input = gets.chomp
+    else
+      puts "planet not found!"
+    end
+
+  elsif user_input == "add planet"
+    puts "please enter the planet's name"
+    planet_name = gets.chomp
+    puts "please enter the planet's color"
+    planet_color = gets.chomp
+    puts "please enter the planet's mass in kg"
+    planet_mass = gets.chomp
+    puts "please enter the planet's distance from sun in km"
+    planet_sun_distance = gets.chomp
+    puts "please enter a fun fact about this planet"
+    planet_fun_fact= gets.chomp
+
+    user_planet = Planet.new(planet_name, planet_color, planet_mass, planet_sun_distance, planet_fun_fact)
+
+    solar_system.add_planet(user_planet)
+    list = solar_system.list_planets
+
+    line
+    user_choice
+    user_input = gets.chomp
+    end
+  end
+end
+
+main

planet.rb

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+class Planet
+  attr_reader(:name, :color, :mass_kg, :distance_from_sun_km, :fun_fact)
+
+  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
+
+  def summary
+    return " #{name} is a #{color} planet that has a mass of #{mass_kg} and a distance of #{distance_from_sun_km} km away from the Sun. Fun fact: #{fun_fact} ."
+  end
+
+end

solar_system.rb

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+class SolarSystem
+  attr_reader(:star_name, :planets)
+
+  def initialize(star_name)
+    @star_name = star_name
+    @planets = []
+  end
+
+  def add_planet(planet)
+    @planets << planet
+  end
+
+  def list_planets
+    all = "Planets orbiting #{@star_name}"
+    @planets.each_with_index do |planet,i|
+      all += "\n"
+      all += "#{i+1}. #{planet.name}"
+    end
+    return all
+  end
+
+  def find_planet_by_name(name)
+    @planets.each do |planet|
+      if planet.name.downcase == name.downcase
+        return planet
+      else
+        return false
+      end
+    end
+    end
+
+
+end