The "Wright Lottery" smart contract is designed to facilitate a lottery system on the Aleo blockchain platform. This contract allows participants to buy tickets, accumulate funds in the lottery pool, and eventually determine a winner. Below, we provide a professional README explaining the contract's structure and functions.
The "Wright Lottery" smart contract on the Aleo blockchain is a decentralized lottery system. It is built to ensure fairness and transparency in lottery drawings. Participants can buy tickets using cryptocurrency, and the winnings are distributed among the lucky winners.
The Participant structure represents an individual who has purchased a lottery ticket. It includes the following fields:
participant_address: The Aleo address of the participant.amount: The amount of cryptocurrency the participant has contributed to the lottery.
The Lottery State stores information about the current state of the lottery. It includes the following fields:
owner: The Aleo address of the lottery owner, who has the authority to finish the lottery.total_amount: The total amount of cryptocurrency accumulated in the lottery pool.participants_amount: The total count of participants who have purchased lottery tickets.
This function initializes the lottery by setting the initial state. It can only be called once, and it returns the lottery state after initialization.
The buy_ticket function allows participants to buy lottery tickets. It checks if the provided amount is greater than zero, calculates the new total amount, and increments the participant count. A new lottery state is created with updated values. This function also calls the finalize function to update the participant mapping.
The finalize function updates the participant mapping with the participant's address and the amount they have contributed to the lottery.
The finish function is used to conclude the lottery. Only the owner of the lottery can call this function. It calculates the prize for the winner, determines the winner's address (randomly for simplicity), and transfers the prize to the winner. It also calculates the owner's commission and sends it to the contract owner (self.caller).
- Initialize the lottery using the
initialize_lotteryfunction. - Participants can buy tickets using the
buy_ticketfunction by specifying their address and the amount. - The owner of the lottery can conclude the lottery using the
finishfunction, which determines the winner and distributes prizes.
This "Wright Lottery" smart contract is provided under the MIT License. You are free to use, modify, and distribute it as per the terms of the license.
Note: This README provides a high-level overview of the smart contract. To deploy and use the contract, ensure you have the necessary tools and permissions on the Aleo blockchain platform.