Apr 222013
 

For an online coursera.org course on interactive python from Rice University. 1st project exercise.

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import math
import random

def name_to_number(name):
    name = name.lower()
    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 "Invalid hand sign '" + name + "'!\nplease choose: 'rock', 'Spock', 'paper', 'lizard' or 'scissors'"

def number_to_name(number):
    if number == 0:
        return "rock"
    elif number == 1:
        return "Spock"
    elif number == 2:
        return "paper"
    elif number == 3:
        return "lizard"
    else:
        number == 4
        return "scissors"

   
def rpsls(name):
    player_val = name_to_number(name)
    computer_val = random.randrange(0,5)
   
    mod_val = (player_val - computer_val) % 5  
    if mod_val == 0:
        winner = "Player and computer tie!"
    elif mod_val > 0  and mod_val < 3:
        winner = "Player wins!"
    else:
        winner = "Computer wins!"

    print "Player choosses " + number_to_name(player_val) #+ " (" + str(player_val) + ")"
    print "Computer chooses " + number_to_name(computer_val) #+ " (" + str(computer_val) + ")"
    print winner
    #print mod_val
    print "\n"
 

### OUTPUT ###
rpsls("Rock")
rpsls("scissors")
rpsls("paper")
rpsls("lizard")
rpsls("spock")

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