Code for IIPP Mini Project [Rock Paper Scissors Lizard Spock]

RPSLS.py

# Rock-paper-scissors-lizard-Spock template


# 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

# helper functions
def name_to_number(name):
    
    if name == "rock":
        number = 0
        return number
    elif name == "Spock":
        number = 1
        return number
    elif name == "paper":
        number = 2
        return number
    elif name == "lizard":
        number = 3
        return number
    elif name == "scissors":
        number = 4
        return number
    else:
        error = "Invalid play..."
        return error

    # convert name to number using if/elif/else

def number_to_name(number):
    
    if number == 0:
        name = "rock"
        return name
    elif number == 1:
        name = "Spock"
        return name
    elif number == 2:
        name = "paper"
        return name
    elif number == 3:
        name = "lizard"
        return name
    elif number == 4:
        name = "scissors"
        return name
    else:
        error = "invalid number..."
        return error
    
    # convert number to a name using if/elif/else

def rpsls(player_choice): 
    # print out the message for the player's choice
    print "Player chooses " + str(player_choice)
    
    # compute random guess for comp_number using 
    # random.randrange()
    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 "Computer chooses " + str(comp_choice)
    
    # convert the player's choice to player_number 
    # using the function name_to_number()
    player_number = name_to_number(player_choice)
    
    #
    # \n is used to print a blank line to separate 
    # consecutive games    
    if type(player_number) == int:
        # compute difference of comp_number and player_number 
        # modulo five - if player_number is an integer
        # player_number is a string if function 
        # name_to_number returns an error message
        diff_modulo_five = (player_number - comp_number) % 5
        # use if/elif/else to determine winner, print 
        # winner message
        if diff_modulo_five in range(1,3):
            print "Player wins!\n"
        elif diff_modulo_five in range(3,5):
            print "Computer wins!\n"
        else: 
            print "Player and computer tie!\n"
    else:   
        # print no outcome in case of erroneous input
        print name_to_number(player_choice) + " no outcome!"
        

# test your code - THESE CALLS MUST BE PRESENT IN 
# YOUR SUBMITTED CODE
rpsls("rock")
rpsls("Spock")
rpsls("paper")
rpsls("lizard")
rpsls("scissors")
rpsls("random erroneous input")