rock_paper_scissor.py

import random
import os
import time


def clear():
    os.system("clear")


# Set of instructions for Rock-Paper-Scissors
def rps_instructions():

    print("***********")
    print("Instructions for Rock-Paper-Scissors : ")
    print("***********")
    print("Rock crushes Scissors")
    print("Scissors cuts Paper")
    print("Paper covers Rock")
    print("***********")


def rps():

    global rps_table
    global game_map
    global name

    # Game Loop for each game of Rock-Paper-Scissors
    while True:

        print("--------------------------------------")
        print("\t\tMenu")
        print("--------------------------------------")
        print('Enter "help" for instructions')
        print('Enter "rock","paper","scissors" to play')
        print('Enter "exit" to quit')
        print("--------------------------------------")

        print("***********")

        # Player Input
        inp = input("Enter your move : ")

        if inp == "help":
            clear()
            rps_instructions()
            continue
        elif inp == "exit":
            clear()
            break
        elif inp == "rock":
            player_move = 0
        elif inp == "paper":
            player_move = 1
        elif inp == "scissors":
            player_move = 2
        else:
            clear()
            print("Wrong Input!!")
            rps_instructions()
            continue

        print("Computer making a move....")

        print("***********")
        time.sleep(2)

        # Get the computer move randomly
        comp_move = random.randint(0, 2)

        # Print the computer move
        print("Computer chooses ", game_map[comp_move].upper())

        # Find the winner of the match
        winner = rps_table[player_move][comp_move]

        # Declare the winner
        if winner == player_move:
            print(name, "WINS!!!")
        elif winner == comp_move:
            print("COMPUTER WINS!!!")
        else:
            print("TIE GAME")

        print("***********")
        time.sleep(2)
        clear()


# The main function
if __name__ == "__main__":

    # The mapping between moves and numbers
    game_map = {0: "rock", 1: "paper", 2: "scissors"}

    # Win-lose matrix for traditional game
    rps_table = [[-1, 1, 0], [1, -1, 2], [0, 2, -1]]

    name = input("Enter your name: ")

    # The GAME LOOP
    while True:

        # The Game Menu
        print("***********")
        print("Let's Play!!!")
        print("Enter 1 to play Rock-Paper-Scissors")
        print("Enter 2 to quit")
        print("***********")

        # Try block to handle the player choice
        try:
            choice = int(input("Enter your choice = "))
        except ValueError:
            clear()
            print("Wrong Choice")
            continue

        # Play the traditional version of the game
        if choice == 1:
            rps()

        # Quit the GAME LOOP
        elif choice == 2:
            break

        # Other wrong input
        else:
            clear()
            print("Wrong choice. Read instructions carefully.")