p5_vehicle.rb

class Vehicle
  WHEELS = 4
  attr_reader :status
  attr_accessor :manufacturer

  def initialize(args)
    @manufacturer = args[:manufacturer]
    @wheels = WHEELS
  end
  def brake
    @status = :stopped
  end
end

class Car < Vehicle
  def initialize(args)
    super
    @color = args[:color]
  end
  def drive
     @status = :driving
  end
  def needs_gas?
     return [true,true,false].sample
  end
end

class Bus < Vehicle
  attr_reader :passengers
  def initialize(args)
    super
    @color = args[:color]
    @wheels = args[:wheels]
    @num_seats = args[:num_seats]
    @fare = args[:fare]
    @passengers=[]
  end
  def drive
    return self.brake if stop_requested?
    @status = :driving
  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
    @color = args[:color]
    @wheels = WHEELS
  end
  def drive
    @status = :driving
    @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


# TESTS

c = Car.new(color: "red")
p c.drive
p c.brake
b = Bus.new(color: 'black', wheels: 6, num_seats: 60, fare: 2)
p b.drive
p b.admit_passenger("Bob", 3)
p b.brake
p b.stop_requested?
p b.needs_gas?
m = Motorbike.new(color: 'purple')
p m.drive
p m.brake
p m.needs_gas?
p m.weave_through_traffic