Andy-Waine / smartcontract-blackjack

The House is a Smart Contract in this Blackjack dApp that utilizes Chainlink VRF for cryptograhically-guaranteed randomized deck shuffling. Built for Chainlink's Spring '23 Hackathon.

🃏 Smart Contract Blackjack ♦️ ♠️ ♥️ ♣️

The House is a Smart Contract in this Blackjack dApp that utilizes Chainlink VRF for cryptograhically-guaranteed randomized deck shuffling.

📁 Table of Contents

• General Information
• Technologies Used
• Setup
• Advantages Over TradFi Blackjack
• Explainer: VRF-Based Shuffling Method
• Project Future
• Meet the Team

ℹ️ General Information

• Start playing blackjack NOW with Smart Contract blackjack to cut out the middleman and avoid storing your money in a centralized escrow.
• Greater shuffling randomization than traditional methods is achieved through Chainlink VRF's cryptographically guaranteed random number issuance.
• This project was built for and submitted to the Spring '23 Chainlink Hackathon.

💻 Technologies Used

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🔧 Setup

• Ensure the latest recommended version of Node and npm are installed on your machine.
• Clone this repository and run npm install to download all dependencies.
• Run npm run start to serve the application locally (localhost:3000)
• If the application throws a build error on main, try the demo branch to test the game and the application's UI (see 'Challenge' below for more details):

🧗‍ Challenge 🧗‍

Currently, we are working to overcome the challenge of obtaining a VRF response prior to dealing. When building locally on `main`, the most up-to-date logic for VRF shuffling throws a build error. We have provided a `demo` branch for game testing with hardcoded values in place of the response. This is our highest-priority item, but we will wait until the judging period for the Spring '23 Hackathon is over to continue work on this.

📈 Advantages Over TradFi Blackjack

	No Escrow Required	Trustless Randomization	Instant Payouts	No Middleman	Plug & Play
DeFi	✅ The only 'escrow' made is for your current hand's wager. You do not need to entrust a third party with any other funds.	✅ Utilizes transparent methods of cryptographically guaranteed randomness from Chainlink VRF for card deals and draws.	✅ Payouts are distributed with each hand as you play.	✅ The Smart Contract is automated and requires little overhead to remain operational.	✅ No account creation necessary. The user can begin playing instantly with a funded MetaMask account.
TradFi	❌ To bet, you must entrust your bankroll to an escrow account with a third party (the House).	❌ Methods of Randomization are not publicly available, requiring the user to trust the house is acting in good faith.	❌ Payouts are distributed asynchronously and may take several business days	❌ The House takes a sizable cut ('rake') from every hand and has high operational expenses.	❌ The user must create and verify an account, provide their banking information, and wire funds to begin playing.

🤓 Explainer: VRF-Based Shuffling Method

👋 Meet the Team

     

Andy Waine                                   Rahul Guha