2. Riddler


In this lab we will remind ourserlves of classes and object-oriented programming with a riddle guessing game. It’s up to you to use the Riddle class to create working game.

[0] Setup

Due to an issue with our website, you will clone this lab manually.

๐Ÿ’ป Start by going into your unit0.0_review folder.

cd ~/desktop/making_with_code/cs10/unit0.0_review/
๐Ÿ’ป Then clone the lab
git clone https://github.com/the-isf-academy/lab-riddler.git
๐Ÿ’ป Now that you have the lab, go into its folder.
cd lab-riddler

๐Ÿ’ป Get the necessary packages Run the following command in your terminal.

poetry update

๐Ÿ’ป Enter the Poetry Shell. We will run this command at the start of each lab, but only when we are inside a lab folder.

poetry shell
๐Ÿ‘พ ๐Ÿ’ฌ Exiting the poetry shell
When you want to exit the shell, you can type exit or ^D

This repository has two files:

  • riddle.py: This file had the Riddle class and a list of Riddle objects
  • game.py: When run, this file should play the riddle guessing game

[1] Riddle Object

Let’s start by exploring the Riddle object. It has two properties and one method.

class Riddle:
    def __init__(self,prompt,answer):
        self.prompt = prompt
        self.answer = answer

    def check_guess(self,guess):
        """Checks whether a guess is correct.
        Uses the fuzzywuzzy library to accept guesses which are close to the answer.
        min_fuzz_ratio = 80
        similarity = fuzz.ratio(guess.lower(), self.answer.lower())

        if similarity >= min_fuzz_ratio:
            return True
            return False

To learn more about how check_guess() accepts guesses that are very close to the answer, you can visit the fuzzywuzzy documentation

๐Ÿ’ป Open riddle.py inside the interactive Python shell. As a reminder, the Python shell is a great way to run small tests.

python -i riddle.py

๐Ÿ’ป Create an instance of a Riddle.

r = Riddle('What gets wet when drying?','a towel')

๐Ÿ’ป Print the prompt and the answer to check you correctly created a Riddle.


๐Ÿ’ป Try to guess the riddle by using the check_guess(guess) method.

r.check_guess('a towel')
๐Ÿ‘พ ๐Ÿ’ฌ Exiting the python shell
When you want to exit the shell, you can type exit() or ^D

๐Ÿ’ป Now that you understand how to create a Riddle, open up riddle.py

This file contains a list of Riddle objects called riddles. Currently, there are only 2 riddles.

riddles = [
        'What has to be broken before you can use it?',
        'an egg'),
        'What month of the year has 28 days?',
        'all of them'

๐Ÿ’ป Add at least 3 more riddles to the list. Here is a list of riddles, but feel free to write your own!

[2] Creating the Game

Now that you understand how the Riddle is structured, it’s up to you use it and create a guessing game.

---- Welcome to the Riddler ----

๐Ÿ’ป Start by opening up game.py

๐Ÿ’ป It is up to you to finish the code in game.py to create a riddle guessing game. The game should:

  • loop each Riddle in the riddles list
  • ask the user to guess the answer
  • tell the user if their guess was correct or incorrect

๐Ÿ•น๏ธ Once you’ve completed your game logic, play test your game! python game.py

[3] Deliverables

โšกโœจ Congrats on completing the Riddler!
Once you’ve successfully completed the Riddler be sure to fill out this Google form.

[4] Extension: Additional Features

Now that we’ve got a basic riddle guessing game, let’s improve it!

[Simple Improvements]

Let’s start with a few simple improvements.

๐Ÿ’ป Keep track of the user's guesses and provide a score at the end. For example once the user guessed all of the riddles, it may print:

Score: 3/5

๐Ÿ’ป Randomize the order of the riddles. Use the random library to change the order the riddles are given each time the user plays the game.

You may want to look at the Random library documentation for a hint

[Add Color]

Although the Riddler is functional, it is not the most exciting looking game. Let’s spice it up with colors!

๐Ÿ’ป Explore the package colorama to add color to your game!

It is already installed, but you will need to add the import statements to the top of game.py.

[Difficulty Setting]

Currently, there are no difficulty settings for the game. Some riddles are easy, some riddles are difficult, and some riddles are in-between.

๐Ÿ’ป Implement a difficulty setting in your game to make it more accesisble. Your game should allow the user between easy, medium, or hard riddles. This may require you to change the Riddle object and the game play flow in game.py.