accepts valid input only on first attempt

testgame.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."
			choice = get_input(@@Choices)
		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
				return choice
			else
				get_input(options)
			end
		
		end
	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
		@stats = {
			"attack" => 80,
			"armour" => 80
		}
		@items = Hash.new
	end
end

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

def new_game()
	newClass = ["warrior", "mage", "warlock", "archer"]
	puts "Choose a name:"
	choiceName = gets.chomp.to_s
	choiceClass = get_input(newClass)
	player = Hero.new(choiceName, choiceClass)
	enemy = Enemy.new()
end


include Menu 
Menu.main_menu()