game.rb

def game
  # create an array [rock, paper, scissors]
  options = ["rock", "paper", "scissors"]
  # create a random input
  computer_input = options.sample

  puts "Rock, paper, scissors?"
  player_input = gets.chomp.downcase

  # create player's input
  unless options.include?(player_input)
    puts "Game over!!! Wrong input"
  end
  # case for the 1st input
  case player_input
  when "rock"
    if computer_input == "rock"
      puts "Draw!Computer input was #{computer_input} "
    elsif computer_input == "paper"
      puts "You lose! Computer input was #{computer_input}"
    else
      puts "You win!Computer input was #{computer_input}"
    end
  when "paper"
    if computer_input == "rock"
      puts "You win!Computer input was #{computer_input} "
    elsif computer_input == "paper"
      puts "Draw! Computer input was #{computer_input}"
    else
      puts "You lose!Computer input was #{computer_input}"
    end
  when "scissors"
    if computer_input == "rock"
      puts "You lose!Computer input was #{computer_input} "
    elsif computer_input == "paper"
      puts "You win! Computer input was #{computer_input}"
    else
      puts "Draw!Computer input was #{computer_input}"
    end
  end

  # compared input VS input PC
  # return lose,win, draw
end