Queues - Erica Case - Solar System

SolarSystem.rb

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+class Planet
+  attr_reader :name ,:travel_time, :length_of_day, :gravity_ratio, :mean_temperature# degrees C
+
+  def initialize(hash)
+    @name = hash[:planet].capitalize.to_sym
+    @gravity_ratio = hash[:gravity] / 9.8
+    @length_of_day = hash[:day_length]
+    @mean_temperature =  hash[:temp]
+    @travel_time = hash[:time]
+  end
+
+  def print_journey(weight)
+    puts "\nIt will take us #{@travel_time} to get to #{@name.capitalize}.  The mean temperature will be #{@mean_temperature} degrees C, and one \"day\" \(planet rotation\) will be equal to #{@length_of_day} earth hours.  You will weigh #{sprintf("%.1f", weight * @gravity_ratio)} pounds\n\n"
+  end
+end
+
+# source:  http://nssdc.gsfc.nasa.gov/planetary/factsheet/
+
+# travel time source:  http://www.astronomycafe.net/qadir/BackTo343.html
+
+mercury = Planet.new(planet: "mercury", gravity: 3.7, day_length: 4222.6, temp: 167, time: "53 days")
+venus = Planet.new(planet: "venus", gravity: 8.9, day_length: 2802, temp: 464,time: "100 days")
+earth = Planet.new(planet: "earth", gravity: 9.8, day_length: 24.0, temp: 15, time: "0 days")
+mars = Planet.new(planet: "mars", gravity: 1.6, day_length: 708.7,temp: -20, time: "210 days")
+jupiter = Planet.new(planet:  "jupiter", gravity: 3.7, day_length: 24.7, temp: -65, time: "1.9 years")
+saturn = Planet.new(planet: "saturn", gravity: 23.1, day_length: 10.7,temp: -110, time: "7.3 years")
+uranus = Planet.new(planet: "uranus", gravity: 9.0, day_length: 17.2, temp: -140, time: "0 days")
+neptune = Planet.new(planet: "neptune", gravity: 8.7, day_length: 16.1, temp: -195, time:"11.4 years")
+pluto = Planet.new(planet:"pluto", gravity: 11.0, day_length: 153.3, temp: -200, time: "15.1 years")
+
+
+
+class SolarSystem
+  attr_reader :solar_system
+
+  def initialize
+    @solar_system = []
+  end
+
+  def add_planet(planet)
+    if planet.is_a? (Array)
+      planet.each do |new_planet|
+        @solar_system << new_planet
+      end
+    else
+      @solar_system << planet
+    end
+  end
+
+  def print_all_planets
+    @solar_system.each do |new_planet|
+      print "#{new_planet.name}, "
+    end
+  end
+
+  def valid_planet?(destino)
+    @solar_system.each do |new_planet|
+      if new_planet.name.to_s == destino
+        puts "Yay!  We are going to go to #{destino}"
+        return true
+      end
+    end
+    print "I'm sorry...I don't know how to get to #{destino}"
+    return false
+  end
+
+  def subset_planet(destino, wt)
+    @solar_system.each do |new_planet|
+      if new_planet.name.to_s == destino
+        new_planet.print_journey(wt)
+      end
+    end
+  end
+end
+
+galaxy = SolarSystem.new
+galaxy.add_planet([mercury,venus, venus, earth, mars, jupiter, saturn, uranus, neptune, pluto])
+####################################################################################
+
+puts "\nHello there, astronaut friend!  Let's journey to an exciting planet."
+
+valid_planet = false
+until  valid_planet
+  print "\n\nWe can go to "
+  galaxy.print_all_planets
+  print " Where would you like to go? "
+  destination = gets.chomp.strip.capitalize
+  valid_planet = galaxy.valid_planet?(destination)
+end
+
+print "For purposes of shuttle safety, please enter your weight in pounds: "
+weight = gets.chomp.to_i
+
+galaxy.subset_planet(destination, weight)

Solar_System.rb

@@ -0,0 +1,95 @@
+# my very first class
+class Planet
+  attr_reader :name ,:travel_time, :length_of_day, :gravity_ratio, :mean_temperature# degrees C
+
+  def initialize(hash)
+    @name = hash[:planet].capitalize.to_sym
+    @gravity_ratio = hash[:gravity] / 9.8
+    @length_of_day = hash[:day_length]
+    @mean_temperature =  hash[:temp]
+    @travel_time = hash[:time]
+  end
+
+  def print_journey(weight)
+    puts "\nIt will take us #{@travel_time} to get to #{@name.capitalize}.  The mean temperature will be #{@mean_temperature} degrees C, and one \"day\" \(planet rotation\) will be equal to #{@length_of_day} earth hours.  You will weigh #{sprintf("%.1f", weight * @gravity_ratio)} pounds\n\n"
+  end
+end
+
+# source:  http://nssdc.gsfc.nasa.gov/planetary/factsheet/
+
+# travel time source:  http://www.astronomycafe.net/qadir/BackTo343.html
+
+mercury = Planet.new(planet: "mercury", gravity: 3.7, day_length: 4222.6, temp: 167, time: "53 days")
+venus = Planet.new(planet: "venus", gravity: 8.9, day_length: 2802, temp: 464,time: "100 days")
+earth = Planet.new(planet: "earth", gravity: 9.8, day_length: 24.0, temp: 15, time: "0 days")
+mars = Planet.new(planet: "mars", gravity: 1.6, day_length: 708.7,temp: -20, time: "210 days")
+jupiter = Planet.new(planet:  "jupiter", gravity: 3.7, day_length: 24.7, temp: -65, time: "1.9 years")
+saturn = Planet.new(planet: "saturn", gravity: 23.1, day_length: 10.7,temp: -110, time: "7.3 years")
+uranus = Planet.new(planet: "uranus", gravity: 9.0, day_length: 17.2, temp: -140, time: "0 days")
+neptune = Planet.new(planet: "neptune", gravity: 8.7, day_length: 16.1, temp: -195, time:"11.4 years")
+pluto = Planet.new(planet:"pluto", gravity: 11.0, day_length: 153.3, temp: -200, time: "15.1 years")
+
+
+
+class SolarSystem
+  attr_reader :solar_system
+
+  def initialize
+    @solar_system = []
+  end
+
+  def add_planet(planet)
+    if planet.is_a? (Array)
+      planet.each do |new_planet|
+        @solar_system << new_planet
+      end
+    else
+      @solar_system << planet
+    end
+  end
+
+  def print_all_planets
+    @solar_system.each do |new_planet|
+      print "#{new_planet.name}, "
+    end
+  end
+
+  def valid_planet?(destino)
+    @solar_system.each do |new_planet|
+      if new_planet.name.to_s == destino
+        puts "Yay!  We are going to go to #{destino}"
+        return true
+      end
+    end
+    print "I'm sorry...I don't know how to get to #{destino}"
+    return false
+  end
+
+  def subset_planet(destino, wt)
+    @solar_system.each do |new_planet|
+      if new_planet.name.to_s == destino
+        new_planet.print_journey(wt)
+      end
+    end
+  end
+end
+
+galaxy = SolarSystem.new
+galaxy.add_planet([mercury,venus, venus, earth, mars, jupiter, saturn, uranus, neptune, pluto])
+####################################################################################
+
+puts "\nHello there, astronaut friend!  Let's journey to an exciting planet."
+
+valid_planet = false
+until  valid_planet
+  print "\n\nWe can go to "
+  galaxy.print_all_planets
+  print " Where would you like to go? "
+  destination = gets.chomp.strip.capitalize
+  valid_planet = galaxy.valid_planet?(destination)
+end
+
+print "For purposes of shuttle safety, please enter your weight in pounds: "
+weight = gets.chomp.to_i
+
+galaxy.subset_planet(destination, weight)