PythonGames/RockPaperScissorsLizardSpock at master · ITKrisLJ/PythonGames · GitHub

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# Rock-paper-scissors-lizard-Spock @K.L
#http://www.codeskulptor.org/#user40_f0osTd4t8P_7.py
# The key idea of this program is to equate the strings
# "rock", "paper", "scissors", "lizard", "Spock" to numbers
# as follows:
#
# 0 - rock
# 1 - Spock
# 2 - paper
# 3 - lizard
# 4 - scissors


#import random function
import random

#--------------------------------------------------------
def name_to_number(name):
    # Function converting name to number from 0 to 4
    # and return value
    # convert name to number using if/elif/else

    if name == "rock":
        return 0
    elif name == "Spock":
        return 1
    elif name == "paper":
        return 2
    elif name == "lizard":
        return 3
    elif name == "scissors":
        return 4
    else:
        return -1
# End function
#--------------------------------------------------------


def number_to_name(number):
    # Function converting number to name
    # return string name
    if number == 0:
        return "rock"
    elif number == 1:
        return "Spock"
    elif number == 2:
        return "paper"
    elif number == 3:
        return "lizard"
    elif number == 4 :
        return "scissors"
#End function
#---------------------------------------------------------


def rpsls(player_choice):
    # Function calculate the choice and print results
    # use random function to select computer choice

    # print a blank line to separate consecutive games
    print ""

    # convert the player's choice to player_number using the function name_to_number()
    player_number = name_to_number(player_choice)
    # if name_to_number function return value -1 if function willl
    # print wrong data message if not then continue.
    if player_number < 0:
        print "Wrong player choice! Let's try again"
    else:
        # print out the message for the player's choice
        print "Player chooses",player_choice

        # compute random guess for comp_number using random.randrange()
        # It's from 0 to 5 the randrange always show the number (n,m-1)
        comp_number = random.randrange(0,5)

        # convert comp_number to comp_choice using the function number_to_name()
        comp_choice = number_to_name(comp_number)

        # print out the message for computer's choice
        print "Computer chooses", comp_choice

        # compute difference of comp_number and player_number modulo five
        comp_diff = (player_number - comp_number) %5

        # use if/elif/else to determine winner, print winner message
        # if comp_diff return 0 then tie
        # if comp_diff is between 1 to 2 then player win
        # if comp_diff is between 3 to 4 then computer win
        if comp_diff == 0:
            print "Player and computer tie!"
        elif comp_diff < 3 and comp_diff > 0:
            print "Player wins!"
        else:
            print "Computer wins!"
        #end if comp_diff
    #end if player_number
#End function


##########################################################
#Main program
##########################################################
# test code
rpsls("rock")
rpsls("Spock")
rpsls("paper")
rpsls("lizard")
rpsls("scissors")
#extra test for wrong name
#rpsls("Kris")