Instructions for making rock-paper-scissors game in python

instructions.md

Rock-Paper_Scissors in Python

Algorithm:

• Collect user input and check if user's move is rock, paper or scissors and simultaneously use random library to generate a random computer move.
• Use if-elif-else or if-else statements to compare the user's move and computer's move
  • if user's move is superior to computer's move (eg: rock > scissors and similarly paper > rock), print that user won
  • else print user lost

Things to learn to make the game:

• if-elif-else statements and logical operators
• random library of python

Also don't hesitate to google things you're not very sure about/ don't know about.

rps.py

# sample rock-paper-scissors game made with python
# author: volt9801

import random  # importing random library for choosing random computer move


# list of possible valid moves which can be entered by user
moves = [('r',"rock", "1"), ('p',"paper", "2"), ('s',"scissors", "3")]
# dictionary of moves and their superior counterparts
win_moves = {"rock": "paper", "paper": "scissors", "scissors": "rock"}

keep_playing = True

while keep_playing:
	user_move = input("Choose a move [r/rock/1, p/paper/2, s/scissors/3]:	").lower()
	computer_move = random.choice(["rock", "paper", "scissors"])

	if user_move in moves[0]:  # if user chooses rock
		print("Computer chose", computer_move)
		if win_moves[computer_move] == "rock":
			print("You won!")
		elif computer_move == "rock":
			print("It's a tie!")
		else:
			print("You lost :[")

	elif user_move in moves[1]:  # if user chooses paper
		print("Computer chose", computer_move)
		if win_moves[computer_move] == "paper":
			print("You won!")
		elif computer_move == "paper":
			print("It's a tie!")
		else:
			print("You lost :[")

	elif user_move in moves[2]:  # if user chooses scissors
		print("Computer chose", computer_move)
		if win_moves[computer_move] == "scissors":
			print("You won!")
		elif computer_move == "scissors":
			print("It's a tie!")
		else:
			print("You lost :[")

	else:  # if the user chooses an invalid move
		print("Invalid move! Please try again")

	play_again = input("Would you like to continue playing? [y/n]	").lower()
	if play_again == "n" or play_again == "no":
		keep_playing = False