water1207 / blackjack-reach-dapp

Modified blackjack game for Reach Bounty Hack competition

Reach Modified Blackjack DApp

This is a modified version of the classic blackjack game implemented using Reach and runs on the Algorand blockchain. Implemented for the Reach Bounty Hack Turkey, where we won the first place. Short demo

What is modified?

• Players can win from either side of the 21. However, going above 21 results in doubling your distance.
• Each player hides the first card they draw, others will be published.

Some small points

• Only 1 ACE can be counted as 11, rest will be interpreted as 1. The smart contract automatically chooses the optimal ACE value.
• If a players' published cards exceed 21, he/she can no longer hit.
• There is an infinite amount of copies of each card, there is no way to count the cards.

Instructions

• Node.js, docker, docker-compose must be installed first.

• Run the Algorand devnet using $ REACH_CONNECTOR_MODE=ALGO ./reach devnet.

• Start the web-app with either $ ./reach react or $ npm run start

• Open the http://localhost:3000 on your browser, ports might differ in your computer. Check the server terminal in case you can't see the server.

Problems you can face

• If your docker container gets stuck in contract deployment, use $ ./reach docker-reset then restart the web-app and the devnet manually.

• In case you get a contract length error, $ ./reach update and $ ./reach compile. Then start the servers again.