Having trouble reading account/password data. Where am I wrong?

gametest.rb

module Menu
	@@Choices = ["New Game", "Load Game", "Options", "Help"]
	@@VirtualChoice = [1,2,3,4,5,6,7,8,9,10,11,12]
	def main_menu()
		puts "Devil Soldiers .Beta"
		choice = get_input(@@Choices)
		case choice
		when 1
			new_game() #add this
		when 2
			load_game() #add this
		when 3
			options_menu() #add this
		when 4
			help_menu() #add this
		else 
			puts "Invalid Command."
			main_menu()
		end
		
	end
	
	def get_input(options = [])
		num = 0
		puts "Choose one:"
		options.each do |option|
			num += 1
			puts " #{num} - #{option}"
		end
		choice = gets.chomp.to_i
		@@VirtualChoice.each do |option|
			if choice == option.to_i
				return choice
			end
		end
		get_input(options)
	end
	
	def output(text)
	puts text
	end

end

module Entity
	def attack()
		return @stats["attack"]
	end
	def defend()
		return @stats["armour"]
	end
	def item_stat()
		@items.each do |key, value|
			case key
			when "Sword"
				if value == 1
					@stats["attack"] += 50
				end
			when "Armour"
				if value == 1
					@stats["armour"] += 100
				end
			when "Helmet"
				if value == 1
					@stats["Helmet"] += 50
				end
			end
		end
	end
	def equip_item(item)
		@items.each do |key, value|
			if key == item
				@items[item] = 1
			end
		end
	end
end

class Enemy
	include Entity
	def initialize()
		@who = String.new
		@level
		@hp = 560
		@stats = {
			"attack" => 80,
			"armour" => 80
		}
		@items = Hash.new
	end
end

class Hero
	include Entity
	def initialize(who, type)
		@who = who
		@class = type
		@hp = 880
		@stats = {
			"attack" => 100,
			"armour" => 100
		}
		@items = {
			"Sword" => 0,
			"Armour" => 0,
			"Helmet" => 0
		}
	end
	def who_is()
		puts "#{@who}, #{@class}, #{@stats}, #{@items}"
	end
end

def write_account(acct, pass, type)
	require "open-uri"
	File.open("account.txt", "a") {|x| x.puts "#{acct}#{pass}#{type}"}	
end

def check_account(acct, pass)
	file = File.open("account.txt", "r") 
	while !file.eof?
		line = file.readline
		if line.include?(acct) && line.include?(pass)
			return 1
		else
			return 0
		end
	end
		
end

def load_game()
	
	puts "Enter your Username:"
	username = gets.chomp.to_s
	puts "Enter your password:"
	password = gets.chomp
	if check_account(username, password) == 1
		puts "account loaded"
		#load account here
	else
		puts "Account not found."
		main_menu()
	end
	
end


def new_game()
	newClass = ["Warrior", "Mage", "Warlock", "Archer"]
	puts "Choose a name:"
	choiceName = gets.chomp.to_s
	puts "Enter a password:"
	choicePass = gets.chomp.to_s
	choiceClass =  case Menu.get_input(newClass)
									when 1
										"Warrior"
									when 2
										"Mage"
									when 3
										"Warlock"
									when 4
										"Archer"
									end
	write_account(choiceName, choicePass, choiceClass)
	player = Hero.new(choiceName, choiceClass)
	player.who_is()
end


include Menu 
Menu.main_menu()