cars/cars.rb at master · aaronmgdr/cars · GitHub

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class Car
@@total_car_count = 0

	def self.total_car_count #
		@@total_car_count
	end

	def initialize()
		@fuel = 10
		@distance = 0
		@@total_car_count +=1
	end

	def to_s()
		"I'm a car! I've driven #{@distance} and have #{@fuel} gallons gas left"
	end


	def drive(miles)
		if (@fuel - miles/20.0) >= 0
			@distance += miles
			@fuel -= miles/20.0
		else
			@distance += @fuel * 20.0
			@fuel = 0
			puts "You're out of gas!"
		end
	end

	def fuel_up()
		gallons_needed = 10.0 - @fuel
		puts "You must pay $#{3.5 * gallons_needed}"
		@fuel = 10.0
	end
end

car_a = Car.new()
car_b = Car.new()
puts car_a
puts car_b
car_a.drive(10)
puts car_a
puts car_b
car_a.drive(232)
car_b.drive(117)
puts car_a
puts car_b

puts Car.total_car_count