procedural

import random, sys

def computer_choice():
    computer_choice = random.choice("rps")
    return computer_choice

def user_choice():
    user_ch = raw_input(" Your Choice ?   ")
    if user_ch != "r" and user_ch != "p" and user_ch != "s":
        print " Wrong input, Please try again.\n"
        user_ch = user_choice()

    return user_ch

def compare_choices(user_choice, computer_choice):
    if user_choice == "r" and computer_choice == "p":
        return "computer"
    elif user_choice == "r" and computer_choice == "s":
        return "user"
    elif user_choice == "r" and computer_choice == "r":
        return "n" # n means nul
    elif user_choice == "p" and computer_choice == "r":
        return "user"
    elif user_choice == "p" and computer_choice == "s":
        return "computer"
    elif user_choice == "p" and computer_choice == "p":
        return "n"
    elif user_choice == "s" and computer_choice == "r":
        return "computer"
    elif user_choice == "s" and computer_choice == "p":
        return "user"
    elif user_choice == "s" and computer_choice == "s":
        return "n"

def play_again():
    print "Game Over"
    choice = raw_input(" Would you like to play again? (Y/N) ")
    if choice == "y" or choice == "Y":
        play()
    elif choice == "n" or choice == "N":
        sys.exit()
    else:
        print " Wrong input, Please try again.\n"
        play_again()


def play():
    global user_score, computer_score
    i = 1
    while i <= 3:
        user_c = user_choice()
        computer_c = computer_choice()
        result = compare_choices(user_c, computer_c)
        if result == "user":
                user_score += 1
                print " Your choice was " + user_c + ", the computer's choice was "+ computer_c
                print " You WON ! \n"
        elif result == "computer":
                computer_score += 1
                print " Your choice was " + user_c + ", the computer's choice was "+ computer_c
                print " The computer won. \n"
        else:
                print " Your choice was " + str(user_c) + ", the computer's choice was "+ str(computer_c)
                play_again()
        i += 1

    print "Your score was: "+str(user_score)+", The Computer's score was: "+str(computer_score)
    if user_score > computer_score:
        print "You are the WINNER, CONGRATULATIONS! \n\n"
    else:
        print "The Computer is the WINNER. \n\n"

    play_again()

user_score = computer_score = 0
print """
          +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
          +                          WECLOME TO ROCK, PAPER, SISSORS GAME.                         +
          +                                                                                                                                          +
          + To test you luck, please choose "r" for Rock, "s" Sissors and "p" for paper.+
          +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
         """
play()