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If you’d like to follow along, the first step is to get Python installed on your computer. Fortunately, Python is incredibly accessible and is available for multiple platforms. You can download the latest version of Python from the official Python website Python.org and follow the installation instructions for your specific operating system.
Once Python is up and running, you’ll need a code editor to write and run your Python programs. One of the popular choices among developers (and the one I use) is Visual Studio Code (VSCode), a free and open-source code editor. It offers a seamless Python development experience with handy extensions and a user-friendly interface. You can download VSCode from code.visualstudio.com and add the Python extension to supercharge your Python coding journey.
A great video resource for getting Python and VSCode setup is from Dave Gray. This video is part of a Python series, but I clipped it so you can jump right to “downloading Python”, and “download and install vscode of Python”
Importing the Random Module
To get things rolling, we’ll need to import the random module, which will allow us to introduce an element of randomness into the game. Python’s random module makes it super easy to generate random choices for the computer.
This line of code imports the `random` module in Python, which allows us to generate random numbers, choices, and other random operations.
Defining the Game Rules and Options
Here, we define the game rules and options for “rock, paper, scissors.” The `rules` dictionary maps each option (rock, paper, or scissors) to what it can defeat. For example, “rock” defeats “scissors,” “paper” defeats “rock,” and “scissors” defeats “paper.” The `options` list contains the available choices for the player and the computer.
The heart of our game lies in the `while True:` statement that creates an infinite loop. The game will continue until the player decides to stop playing.
Getting User Input
This line prompts the user to enter their choice (rock, paper, or scissors). The `input()` function takes the user’s input as a string and stores it in the `user_choice` variable.
Generating Computer’s Choice
The computer’s choice is randomly generated using `random.choice()`. It selects a random item from the `options` list (rock, paper, or scissors) and stores it in the `computer_choice` variable.
This line prints the user’s choice and the computer’s choice using an f-string (formatted string). It displays the choices in the output for the user to see.
Determining the Winner
In this part, we check for the winner or if it’s a tie. If the user’s choice is the same as the computer’s choice, it’s a tie. If the user’s choice defeats the computer’s choice according to the game rules defined earlier, the user wins. Otherwise, the computer wins.
Asking to Play Again
After each round, the user is asked if they want to play again. The input is stored in the `play_again` variable. If the user’s input is not “y” (meaning they don’t want to play again), the loop is exited using `break`.
Exiting the Game
After the user decides not to play again, the loop is exited, and the program prints a “Thanks for playing!” message.
Running the Program
This comment indicates how to run the Python script (assuming the script file is named “rock-paper-scissors-game.py”). You would run this in the terminal or command prompt, and the game would start, allowing you to play against the computer in a “rock, paper, scissors” match.
And that’s it, a simple Python program: the “rock paper scissors” game.