A simple restaurant robot

restaurbot.rb

# Restaurbot

$done = false

orders = [
  'pizza', 'macaroni'
]

puts 'Hello. What is your name?'
$name = gets.chomp.capitalize
puts 'Hello, ' + $name + '.'
if $name == 'Ben'
  puts 'You\'re awesome!'
  else
    puts 'You\'re stupid!'
end

until $done == true
  puts 'What would you like to order, ' + $name + '?'
  puts 'There are currently ' + orders.length.to_s + ' available orders.'
  puts 'Type "add" to add an order, "order" to display the orders, or "del" to delete an order.'

  $choice = gets.chomp.downcase

  if $choice == 'add'
    puts 'Type the name of the order you want to add:'
    $order_add = gets.chomp.downcase
    orders.push($order_add)
    puts 'Order ' + orders.last + ' has been added!'
  end

  if $choice == 'del'
    puts 'Type the name of the order you want to delete:'
    $order_del = gets.chomp.downcase
    orders.delete($order_del)
    puts 'Order ' + $order_del + ' has been deleted!'
    puts 'These are the current orders:' + orders.to_s + ''
  end

  if $choice == 'order'
    puts 'These are the current orders:' + orders.to_s + ''
    puts 'Type the name of the order you want to order:'
    $order = gets.chomp.downcase
    if orders.include?($order)
      puts 'WEIRDO'
      else
        puts '' + $order + ' is a really weird food!'
        $done = true
    end
  end  
end