P5: OO Inheritance.rb

# class Car
#  @@WHEELS = 4
#  def initialize(args)
#    @color = args[:color]
#    @wheels = @@WHEELS
#  end
#  def drive
#    @status = :driving
#  end
#  def brake
#    @status = :stopped    
#  end
#  def needs_gas?
#    return [true,true,false].sample
#  end
 
# end
# class Bus
#  attr_reader :passengers
#  def initialize(args)
#    @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 brake
#    @status = :stopped
#  end 
#  def stop_requested?
#    return [true,false].sample
#  end
#  def needs_gas?
#    return [true,true,true,false].sample
#  end

 
# end


# class Motorbike
#  @@WHEELS = 2
#  def initialize(args)
#    @color = args[:color]
#    @wheels = @@WHEELS

#  end

#  def drive
#    @status = :driving
#    @speed = :fast
#  end

#  def brake
#    @status = :stopped 
#  end
#  def needs_gas?
#    return [true,false,false,false].sample
#  end 
#  def weave_through_traffic
#    @status = :driving_like_a_crazy_person
#  end
# end

class Vehicle
   def initialize
     @wheels = 4
     @fuel = ['true', 'false']
     @color = "silver"
     @status = :stopped

   end

   def drive
      @status = :driving
   end

   def brake
      @status = :stopped
   end

   def needs_gas?
     @fuel.sample
   end
end

class Car < Vehicle
   def initialize(args)
      @color = args[:color]
   end

   def drive
      @status = :driving
   end

   def brake
      @status = :stopped
   end

   def needs_gas?
     @fuel.sample
   end
end

class Bus < Vehicle
   def initialize(args)
      @color = args[:color]
      @num_seats = args[:num_seats]
      @passengers = []
      @fare = args[:fare]
      @wheels = args[:wheels]
      
   end

   def drive
      @status = :driving
   end

   def brake
      @status = :stopped
   end

   def needs_gas?
     @fuel.sample
   end
end

###Test Cases###
###Car Tests###
car = Car.new({{color: black}})
puts car.wheels == 4
car.drive
puts "The cars current status is supposed to be driving, current status: #{car.status}"
car.brake
puts "The cars current status is supposed to be braking, current status: #{car.status}"
puts car.needs_gas? == true || false
###Bus Tests###
bus = Bus.new({color: red, wheels: 6, num_seats: 10, fare: 5})
puts bus.passengers.empty?
bus.admit_passenger("this guy", 4)
puts "there is #{bus.passengers.length} passengers on the bus"
bus.admit_passenger("this guy", 5)
puts "there is #{bus.passengers.length} passengers on the bus"
bus.drive
puts "The current status is supposed to be driving, current status: #{bus.status}"
bus.brake
puts "The current status is supposed to be driving, current status: #{bus.status}"
bus.stop_requested?