Build Your
Blockchain Startup
with AI

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract MoriovaxToken is ERC20, Ownable {
    uint256 public constant MAX_SUPPLY = 1_000_000_000e18;
    uint16  public tax = 200; // 2%
    address public treasury;

    constructor(address _treasury)
        ERC20("Moriovax", "MOR")
        Ownable(msg.sender)
    {
        treasury = _treasury;
        _mint(msg.sender, MAX_SUPPLY);
    }

    function _update(address from, address to, uint256 value)
        internal override
    {
        uint256 fee = (value * tax) / 10_000;
        super._update(from, treasury, fee);
        super._update(from, to, value - fee);
    }
}