21 Blackjack

This repository contains the code for a Blackjack game playable in the terminal. The game has been coded in both Javascript and Python, and in both a functional-based manner and object-orientated manner.

Table of Contents

• Setup
• Technologies
• Deno
• Implementation
• Game Logic
• License
• Contact

Setup

To get started, clone this repository to your local machine.

To run the Javascript versions, please ensure you have Deno installed on your machine to execute Javascript files. Deno is a modern runtime for Javascript. Open up your terminal or a code editor, like Visual Studio Code, and navigate to the folder, Javascript. Then enter the following command to start the game:

deno run blackjack.js

To run the Python versions, please ensure you have Python installed on your local machine to execute Python scripts.

Technologies

• Deno
• Python

Deno

Deno is a modern alternative to Node.js, which is also a JavaScript Runtime. However, Deno provides a number of benefits when compared to Node. In fact, both open-source technologies were developed by the same creator. Deno was created to address issues in Node, such as a lack of attention to security, and lack of support for TypeScript.

Implementation

This game has been implemented in different languages and paradigms to demonstrated understanding of:

• Python
• Javascript
• Functional programming
• Object-oriented programming

Game Logic

When the scripts are ran, the game begins by shuffling a deck. The player's turn is first and two cards are randomly drawn for them. The 'score' of the hand depends on which cards were drawn.

• If the player achieves a score of 21 on their first turn, their turn automatically ends and the dealer's turn begins.
• Otherwise, the player has a choice to hit or stick.
  • If they hit and bust (score > 21), the player loses and the dealer wins.
  • If they reach 21, the player's turn automatically ends
  • If their score is under 21 again, the prompt to hit/stick is repeated.

If the player sticks or reaches 21, the player's turn ends and the dealer's turn starts. The dealer will draw 2 random cards from deck, which excludes the cards drawn by the player initially.

• If the dealer achieves a score of 21 on their first round, their turn automatically ends.
• If the dealer achieves a score of less than 16, the dealer will hit and draw another card.
  • If the dealer's score is still less than 16, the dealer will hit, and vice versa.
  • If the dealer's score is exactly 21, their turn will automatically end.
  • If the dealer's score exceeds 21, the dealer loses and the player wins.

Next Steps

• Implement multiple rounds and keep track of score
• Register a user
• Leaderboard system
• Add money to gamble
• Make the game appear more visual
• Create a react web application based on this

License

The license for this project can be found here.

Contact

Please feel free to reach out to me on LinkedIn with any questions.