This is my first time I use Foundry, so it is very likely that many things can be improved.
These smart contracts are being provided as is. They have not been audited and as such there can be no assurance they will work as intended, and users may experience delays, failures, errors, omissions, loss of transmitted information or loss of funds. The creators are not liable for any of the foregoing. Users should proceed with caution and use at their own risk.
Feel free to contribute to the repo!
The contract uses a PRNG function to pick a winner from an array of players, as VRF wasn't necessary for the purpose of this project.
To gurantee a 100% fairness, the admin must compute the Keccak256 hash of a random string off-chain and set it at the creation of each lottery.
Once the hash for that lottery is set, it can't be changed. To provide more randomness, the admin can call the pickWinner() whenever he wants.
forge init
forge build
forge testThis project uses Foundry. See the book for instructions on how to install and use Foundry.