Rock-Paper-Scissors

rock_paper_scissors.rb

CHOICES = ["Rock", "Paper", "Scissors"]

def player_choice
  print "Enter your choice below:
  >"

  player_input = gets.chomp.capitalize

  CHOICES.include?(player_input) ? player_input : player_choice
end

def computer_choice
  CHOICES[rand(3)]
end

def outcome
  player_decision = player_choice
  computer_decision = computer_choice

  combination_hash = { "Scissors" => "Paper", "Paper" => "Rock", "Rock" => "Scissors" }

  decision = combination_hash[player_decision] == computer_decision ? "win" : (combination_hash[computer_decision] == player_decision ? "lose" : "draw")

  puts "You chose #{player_decision} and the computer chose #{computer_decision}. You #{decision}!"
end

def new_game
  puts "Let's play some Rock-Paper-Scissors!"

  outcome
end