00: Refactor with Vehicle class (inheritance).rb

# encoding: utf-8
class Vehicle
   attr_accessor :color, :clean, :status
   attr_reader :needs_gas, :wheels
   def initialize (color)
      @color = color
      @status = :stopped
      @needs_gas = false
      @wheels = 4 
      @clean = 100   
   end

   def drive
      self.clean = clean - 10
      self.status = :driving
   end

   def brake
      self.status = :stopped    
   end

   def is_clean?
      clean >= 50
   end

   def wash
      self.clean = 100
   end

   def needs_gas?
      return [true,true,false].sample
   end
end

class Car < Vehicle
end

class Bus < Vehicle
 attr_reader :num_seats, :fare
 attr_accessor :passengers
 def initialize(color, num_seats, fare)
   super (color)
   @num_seats = num_seats
   @fare = fare
   @passengers=[]
 end

 def drive
   if stop_requested? != true
      self.clean = clean - 10
      self.status = :driving
    else 
      self.brake
      self.clean = clean - 10
    end
 end

 def admit_passenger(passenger,money)
   passengers << passenger if money >= fare && num_seats > passengers.length
 end

 def stop_requested?
   return [true,false].sample
 end

 def needs_gas?
   return [true,true,true,false].sample
 end

 def make_an_announcement
    "(ノ`Д ́)ノ PLEASE DO NOT SING R.KELLY AT THE TOP OF YOUR LUNGS ON THE BUS. I REPEAT, PLEASE DO NOT SING R.KELLY AT THE TOP OF YOUR LUNGS ON THE BUS. (ノ`Д ́)ノ"
 end
end


class Motorbike < Vehicle 
 @@WHEELS = 2
 attr_accessor :speed
 def initialize(color)
   super
   @wheels = @@WHEELS
   @speed = :cruisin
 end

 def drive
   super
   self.speed = :fast
 end

 def needs_gas?
   return [true,false,false,false].sample
 end 

 def weave_through_traffic
   self.status = :driving_like_a_crazy_person
   self.speed = :lightning_fast
 end
end

#Tests: Class car
corvette = Car.new('red')
puts corvette.color
puts corvette.wheels == 4
puts corvette.drive
puts corvette.drive
puts corvette.brake
puts corvette.needs_gas?
puts "My car has #{corvette.wheels} and is a goregous #{corvette.color}."
puts corvette.color == 'green' #false
puts corvette.clean
puts corvette.wash
puts "Is my car clean? #{corvette.is_clean?}"
puts "---CLASS BREAK----"


#Tests: Class bus
cta_damen = Bus.new('white', 2, 2.25)
puts cta_damen.drive
puts cta_damen.status
cta_damen.admit_passenger('old lady', 2.25)
cta_damen.admit_passenger('skater kid', 2.25)
cta_damen.admit_passenger('trust fund crust punk kid', 0)
cta_damen.admit_passenger('mayor emanuel', 20)
puts "This bus has #{cta_damen.passengers} on it."
puts cta_damen.drive
puts "This is Damen and Milwaukee. Would you like to stop? #{cta_damen.stop_requested?}."
puts cta_damen.drive
puts cta_damen.make_an_announcement
puts cta_damen.clean
puts cta_damen.is_clean?
puts "Does the bus need gas? -- #{cta_damen.needs_gas?}."
puts cta_damen.wash
puts cta_damen.clean
puts "---CLASS BREAK----"


#Tests: Class motorbike
harley = Motorbike.new('green')
puts "My brand new motorbike is the most beautiful shade of #{harley.color}!"
puts harley.drive
puts harley.drive
puts harley.brake
puts "Hey, does your motorbike need gas?--#{harley.needs_gas?}"
puts harley.weave_through_traffic
puts harley.brake
puts harley.wheels == 2
puts harley.status
harley.drive
puts harley.status
puts harley.status == :driving
puts harley.clean
puts harley.wash
puts harley.wheels

01: P5: OO Inheritance.rb

class Car
 @@WHEELS = 4
 attr_accessor :color
 attr_reader :wheels
 def initialize(color)
   @color = 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(color, num_seats, fare)
   @color = color
   @wheels = 4
   @num_seats = num_seats
   @fare = fare
   @passengers=[]
 end
 def drive
   puts @status = :driving
   return self.brake if stop_requested?
   return @status
 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
   attr_accessor :color
 @@WHEELS = 2
 def initialize(color)
   @color = 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

#Tests: Class car
corvette = Car.new('red')
puts corvette.color
puts corvette.wheels
puts corvette.drive
puts corvette.drive
puts corvette.brake
puts corvette.needs_gas?
puts "My car has #{corvette.wheels} and is a goregous #{corvette.color}."
puts " "

#Tests: Class bus
cta_damen = Bus.new('white', 500, 2.25)
puts cta_damen.drive
cta_damen.admit_passenger('old lady', 2.25)
cta_damen.admit_passenger('skater kid', 2.25)
cta_damen.admit_passenger('trust fund crust punk kid', 0)
cta_damen.admit_passenger('mayor emanuel', 20)
puts "This bus has #{cta_damen.passengers} on it."
puts cta_damen.drive
puts "This is Damen and Milwaukee. Would you like to stop? #{cta_damen.stop_requested?}."
puts cta_damen.drive
puts "Does the bus need gas? -- #{cta_damen.needs_gas?}."
puts " "

#Tests: Class motorbike
harley = Motorbike.new('green')
puts "My brand new motorbike is the most beautiful shade of #{harley.color}!"
puts harley.drive
puts harley.drive
puts harley.brake
puts "Hey, does your motorbike need gas?--#{harley.needs_gas?}"
puts harley.weave_through_traffic
puts harley.brake