Forked from dbc-challenges/P5: OO Inheritance.rb
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December 22, 2015 13:19
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| class Vehicle | |
| @@WHEELS = 4 | |
| attr_reader :speeding_tickets | |
| def initialize(args) | |
| @color = args[:color] | |
| @speeding_tickets = 0 | |
| end | |
| def drive | |
| @status = :driving | |
| end | |
| def brake | |
| @status = :stopped | |
| end | |
| def caught_speeding | |
| @speeding_tickets += 1 if @status == :driving_like_a_crazy_person | |
| end | |
| end | |
| class Car < Vehicle | |
| def initialize(args) | |
| super | |
| @wheels = @@WHEELS | |
| @sunroof = :open | |
| end | |
| def needs_gas? | |
| return [true,true,false].sample | |
| end | |
| def close_sunroof | |
| @sunroof = :closed | |
| end | |
| def open_sunroof | |
| @sunroof = :open | |
| end | |
| end | |
| class Bus < Vehicle | |
| attr_reader :passengers | |
| def initialize(args) | |
| super | |
| @wheels = args[:wheels] || @@WHEELS | |
| @num_seats = args[:num_seats] | |
| @fare = args[:fare] | |
| @passengers=[] | |
| end | |
| def drive | |
| return self.brake if stop_requested? | |
| super | |
| end | |
| def admit_passenger(passenger,money) | |
| @passengers << passenger if money > @fare | |
| end | |
| def stop_requested? | |
| return [true,false].sample | |
| end | |
| def needs_gas? | |
| return [true,true,true,false].sample | |
| end | |
| end | |
| class Motorbike < Vehicle | |
| @@WHEELS = 2 | |
| def initialize(args) | |
| super | |
| @wheels = @@WHEELS | |
| end | |
| def drive | |
| super | |
| @speed = :fast | |
| end | |
| def needs_gas? | |
| return [true,false,false,false].sample | |
| end | |
| def weave_through_traffic | |
| @status = :driving_like_a_crazy_person | |
| end | |
| end | |
| #Car | |
| puts 'Car test' | |
| first_car = Car.new({:color => 'blue'}) | |
| puts "Drive: #{first_car.drive}" | |
| puts "Brake: #{first_car.brake}" | |
| puts "Needs gas? #{first_car.needs_gas?}" | |
| puts "Open sunroof: #{first_car.open_sunroof}" | |
| puts "Close sunroof: #{first_car.close_sunroof}" | |
| puts "Po-po drives by" | |
| first_car.caught_speeding | |
| puts "Car has #{first_car.speeding_tickets} tickets" | |
| puts | |
| #Bus | |
| puts 'Bus test' | |
| first_bus = Bus.new({:color => 'yellow', :num_seats => 10, :fare => 2}) | |
| first_bus.admit_passenger('Nick', 3) | |
| first_bus.admit_passenger('Danielle', 1) | |
| first_bus.admit_passenger('Tyler', 5) | |
| puts "Passengers: #{first_bus.passengers == ['Nick','Tyler']}" | |
| puts "Drive: #{first_bus.drive} " | |
| puts "Drive: #{first_bus.drive}" | |
| puts | |
| #Motorbike | |
| puts 'Motorbike test' | |
| first_motorbike = Motorbike.new({:color => 'Red'}) | |
| puts "Drive: #{first_motorbike.drive}" | |
| puts "Brake: #{first_motorbike.brake}" | |
| puts "Needs gas? #{first_motorbike.needs_gas?}" | |
| puts "Weaving? #{first_motorbike.weave_through_traffic}" | |
| puts "Po-po drives by" | |
| first_motorbike.caught_speeding | |
| puts "Car has #{first_motorbike.speeding_tickets} tickets" |
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