#import libraries
import math
import random


# 0 - rock
# 1 - Spock
# 2 - paper
# 3 - lizard
# 4 - scissors

# helper functions

#will associate a number between 0 and 4 with a given name in RPSLS
def name_to_number(name):
    if (name == "Rock") or (name == "rock"):
        return 0
    elif (name == "Spock") or (name == "spock"):
        return 1
    elif (name == "Paper") or (name == "paper"):
        return 2
    elif (name == "Lizard") or (name == "lizard"):
        return 3
    elif (name == "Scissors") or (name == "scissors"):
        return 4
    else:
        print "That's from a different game dude"


#will convert numbers back to the name for output
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"
    elif number == 4:
        return "Scissors"


#main game
def rpsls(player_choice):


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

    # print out the message for the player's choice
    print "Player chooses " + player_choice

    # convert the player's choice to player_number using the function name_to_number()
    player_number = name_to_number(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 out the message for computer's choice
    print "Computer chooses " + comp_choice

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

    # use if/elif/else to determine winner, print winner message
    if result == 0:
        print "Player and computer tie!"
    elif result == 1:
        print "Computer wins!"
    elif result == 2:
        print "Computer wins!"
    elif result == 3:
        print "You win!"
    elif result == 4:
        print "You win!"


# test your code - THESE CALLS MUST BE PRESENT IN YOUR SUBMITTED CODE
rpsls("spock")
rpsls("Spock")
rpsls("Paper")
rpsls("lizard")
rpsls("scissors")


# always remember to check your completed program against the grading rubric