rock_paper_scissors.py

rock_paper_scissors.py

#!/usr/bin/env python3
#
# Reason For Creation: The creation of this little script was due to the fact that a
#                      math class required us to play rock paper scissors against
#                      someone to observe probability. I didn't have anyone to do it
#                      with at the time, so I created this.
#
# Version: v1.0.2
# License: MIT License
#          Copyright (c) 2020-2021 Hunter T. (StrangeRanger)
#
########################################################################################
"""
A randomized rock paper scissors game for the purpose of observing probability.
"""
####[ Imports ]#########################################################################


from random import randint


####[ Variables ]#######################################################################


NUM_OF_GAMES = 50
pa_score = 0
pb_score = 0
tie = 0


####[ Main ]############################################################################


## Perform "Rock, Paper, Scissors".
for i in range(NUM_OF_GAMES):
    # ------------------------------------------------
    #
    # Number outcomes and their item equivalent:
    # 1 = Rock
    # 2 = Scissors
    # 3 = Paper
    #
    # - Order DOES matter (player 1, player 2) | (R,P) ≠ (P,R)
    # - Duplicates allowed (this means that both players use the same item)
    # - Total permutations/possible outcomes: 3^2 = 9
    #
    # ------------------------------------------------
    #
    #  Player 1 | Player 2
    #    Tie  R = R  Tie
    # Winner  R > S
    #         R < P  Winner
    #    Tie  S = S  Tie
    # Winner  S > P
    #         S < R  Winner
    #    Tie  P = P  Tie
    # Winner  P > R
    #         P < S  Winner
    #
    #          OR
    #
    #  Player 1 | Player 2
    #    Tie  1 = 1  Tie
    # Winner  1 > 2
    #         1 < 3  Winner
    #    Tie  2 = 2  Tie
    # Winner  2 > 3
    #         2 < 1  Winner
    #    Tie  3 = 3  Tie
    # Winner  3 > 1
    #         3 < 2  Winner
    #
    # ------------------------------------------------

    pa = randint(1, 3)
    pb = randint(1, 3)

    print("Game: {}".format(i + 1))

    # {(R,R),(S,S),(P,P)}
    if pa == pb:
        tie += 1
        print("Tie!\n")
    elif (pa == 1 and pb == 2) or (pa == 2 and pb == 3) or (pa == 3 and pb == 1):
        pa_score += 1
        print("Player A won!\n")
    else:
        pb_score += 1
        print("Player B won!\n")

print(
    "Games have been complete\nPlayer A score: {}\nPlayer B score: {}\nTies: {}".format(
        pa_score, pb_score, tie
    )
)