def match
  puts "Welcome to Rock - Paper - Scissors"
  puts "Choose your weapon: rock - paper - scissors"
  user_weapon = gets.strip.downcase
  random = rand(1..3)
    if random == 1
    computer_weapon = "rock"
    elsif random == 2
    computer_weapon = "paper"
    elsif random == 3
    computer_weapon = "scissors"
    end
  puts "\n"
  puts "The computer selected #{computer_weapon}."
  puts "\n"
  results(user_weapon, computer_weapon)
  puts "\n"
  play_again
end

def results(user_weapon, computer_weapon)
  if user_weapon === computer_weapon
  puts "It's a tie game!"
  elsif user_weapon === "rock" && computer_weapon === "scissors"
  puts "You win!"
  elsif user_weapon === "rock" && computer_weapon === "paper"
  puts "Meet your new master, the computer."
  elsif user_weapon === "paper" && computer_weapon === "rock"
  puts "You win!"
  elsif user_weapon === "paper" && computer_weapon === "scissors"
  puts "Meet your new master, the computer."
  elsif user_weapon === "scissors" && computer_weapon === "rock"
  puts "Meet your new master, the computer."
  elsif user_weapon === "scissors" && computer_weapon === "paper"
  puts "You win!"
  end
end

def play_again
  puts "Would you like to play again?  y/n"
  input = gets.strip.downcase
  if input == "y"
  match
  else
  puts "Thanks for playing!"
  end
end

match