RocketMenaCoin

/**
 *Submitted for verification at Etherscan.io on 2025-10-07
*/

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

contract RocketMenaCoin {
    string public name;
    string public symbol;
    uint8  public constant decimals = 18;
    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor(string memory name_, string memory symbol_, uint256 initialSupplyWhole) {
        name = name_;
        symbol = symbol_;
        uint256 amount = initialSupplyWhole * 10**decimals;
        totalSupply = amount;
        balanceOf[msg.sender] = amount;
        emit Transfer(address(0), msg.sender, amount);
    }

    function transfer(address to, uint256 value) external returns (bool) {
        _transfer(msg.sender, to, value); return true;
    }

    function approve(address spender, uint256 value) external returns (bool) {
        allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true;
    }

    function transferFrom(address from, address to, uint256 value) external returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; require(allowed >= value, "allowance");
        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - value;
        _transfer(from, to, value); return true;
    }

    function _transfer(address from, address to, uint256 value) internal {
        require(to != address(0), "to zero");
        uint256 bal = balanceOf[from]; require(bal >= value, "balance");
        unchecked { balanceOf[from] = bal - value; balanceOf[to] += value; }
        emit Transfer(from, to, value);
    }
}