// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023. // ForTehKween // SPDX-License-Identifier: MIT pragma solidity 0.8.9; abstract contract Context { function _msgSender() internal view virtual returns(address) { return msg.sender; } function _msgData() internal view virtual returns(bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } } interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns(string memory); function symbol() external pure returns(string memory); function decimals() external pure returns(uint8); function totalSupply() external view returns(uint); function balanceOf(address owner) external view returns(uint); function allowance(address owner, address spender) external view returns(uint); function approve(address spender, uint value) external returns(bool); function transfer(address to, uint value) external returns(bool); function transferFrom(address from, address to, uint value) external returns(bool); function DOMAIN_SEPARATOR() external view returns(bytes32); function PERMIT_TYPEHASH() external pure returns(bytes32); function nonces(address owner) external view returns(uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; function MINIMUM_LIQUIDITY() external pure returns(uint); function factory() external view returns(address); function token0() external view returns(address); function token1() external view returns(address); function getReserves() external view returns(uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns(uint); function price1CumulativeLast() external view returns(uint); function kLast() external view returns(uint); function mint(address to) external returns(uint liquidity); function burn(address to) external returns(uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns(address); function feeToSetter() external view returns(address); function getPair(address tokenA, address tokenB) external view returns(address pair); function allPairs(uint) external view returns(address pair); function allPairsLength() external view returns(uint); function createPair(address tokenA, address tokenB) external returns(address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns(uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns(uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns(bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns(uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns(bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns(bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); } interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns(string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns(string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns(uint8); } contract ERC20 is Context, IERC20, IERC20Metadata { using SafeMath for uint256; mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns(string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns(string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns(uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns(uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns(uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns(bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns(uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns(bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns(bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns(bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns(bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero")); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); _balances[recipient] = _balances[recipient].add(amount); emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance"); _totalSupply = _totalSupply.sub(amount); emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { 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); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual { } } library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns(uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns(uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns(uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns(uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 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; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function mod(uint256 a, uint256 b) internal pure returns(uint256) { return mod(a, b, "SafeMath: modulo by zero"); } function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns(uint256) { require(b != 0, errorMessage); return a % b; } } 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); } function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } } library SafeMathInt { int256 private constant MIN_INT256 = int256(1) << 255; int256 private constant MAX_INT256 = ~(int256(1) << 255); /** * @dev Multiplies two int256 variables and fails on overflow. */ function mul(int256 a, int256 b) internal pure returns(int256) { int256 c = a * b; // Detect overflow when multiplying MIN_INT256 with -1 require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256)); require((b == 0) || (c / b == a)); return c; } /** * @dev Division of two int256 variables and fails on overflow. */ function div(int256 a, int256 b) internal pure returns(int256) { // Prevent overflow when dividing MIN_INT256 by -1 require(b != -1 || a != MIN_INT256); // Solidity already throws when dividing by 0. return a / b; } /** * @dev Subtracts two int256 variables and fails on overflow. */ function sub(int256 a, int256 b) internal pure returns(int256) { int256 c = a - b; require((b >= 0 && c <= a) || (b < 0 && c > a)); return c; } /** * @dev Adds two int256 variables and fails on overflow. */ function add(int256 a, int256 b) internal pure returns(int256) { int256 c = a + b; require((b >= 0 && c >= a) || (b < 0 && c < a)); return c; } /** * @dev Converts to absolute value, and fails on overflow. */ function abs(int256 a) internal pure returns(int256) { require(a != MIN_INT256); return a < 0 ? -a : a; } function toUint256Safe(int256 a) internal pure returns(uint256) { require(a >= 0); return uint256(a); } } library SafeMathUint { function toInt256Safe(uint256 a) internal pure returns(int256) { int256 b = int256(a); require(b >= 0); return b; } } interface IUniswapV2Router01 { function factory() external pure returns(address); function WETH() external pure returns(address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns(uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns(uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns(uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns(uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns(uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns(uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns(uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns(uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns(uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns(uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns(uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns(uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns(uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns(uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns(uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns(uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns(uint[] memory amounts); } interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns(uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns(uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; } contract Elizabeth96 is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; // addresses address private burnWallet; // limits uint256 private maxTransactionBuyAmount; uint256 private maxTransactionSellAmount; uint256 private maxWallet; uint256 private swapTokensAtAmount; // status flags bool private tradingActive = false; bool public swapEnabled = false; bool public swapping; // Blacklist Map mapping(address => bool) private _blacklist; struct Fees { uint256 buyTotalFees; uint256 buyBurnFee; uint256 buyLiquidityFee; uint256 sellTotalFees; uint256 sellBurnFee; uint256 sellLiquidityFee; } Fees public _fees = Fees({ buyTotalFees: 0, buyBurnFee: 0, buyLiquidityFee: 0, sellTotalFees: 0, sellBurnFee: 0, sellLiquidityFee: 0 }); uint256 public tokensForBurn; uint256 public tokensForLiquidity; // exclude from fees and max transaction amount mapping(address => bool) private _isExcludedFromFees; mapping(address => bool) public _isExcludedMaxTransactionAmount; mapping(address => bool) public _isExcludedMaxWalletAmount; // store addresses that a automatic market maker pairs. Any transfer *to* these addresses // could be subject to a maximum transfer amount mapping(address => bool) public automatedMarketMakerPairs; event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); constructor() ERC20("ELIZABETH96", "KWEEN96") { IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); automatedMarketMakerPairs[address(uniswapV2Pair)] = true; approve(address(_uniswapV2Router), type(uint256).max); uint256 totalSupply = 1 * 1e7 * 1e18; maxTransactionBuyAmount = (totalSupply * 2) / 100; // 2% Max TX maxTransactionSellAmount = (totalSupply * 2) / 100; // 2% Max TX maxWallet = totalSupply * 3 / 100; // 2% maxWallet swapTokensAtAmount = totalSupply * 1 / 10000; // 0.01% swap wallet _fees.buyBurnFee = 3; _fees.buyLiquidityFee = 1; _fees.buyTotalFees = _fees.buyBurnFee + _fees.buyLiquidityFee; _fees.sellBurnFee = 3; _fees.sellLiquidityFee = 1; _fees.sellTotalFees = _fees.sellBurnFee + _fees.sellLiquidityFee; burnWallet = address(0xCB154DbB662E59a64FACA7c6F7c167A9232F0c5a); // // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromMaxTransaction(owner(), true); excludeFromMaxTransaction(address(this), true); excludeFromWalletLimit(owner(), true); excludeFromWalletLimit(address(this), true); excludeFromWalletLimit(address(uniswapV2Pair), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(msg.sender, totalSupply); } receive() external payable { } function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; } function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns(bool){ swapTokensAtAmount = newAmount; return true; } function updateMaxTxnAmount(uint256 newMaxBuyAmount, uint256 newMaxSellAmount) external onlyOwner { require(((totalSupply() * newMaxBuyAmount) / 1000) >= (totalSupply() / 5000), "Cannot set lower than 0.5%"); require(((totalSupply() * newMaxSellAmount) / 1000) >= (totalSupply() / 5000), "Cannot set lower than 0.5%"); maxTransactionBuyAmount = (totalSupply() * newMaxBuyAmount) / 1000; maxTransactionSellAmount = (totalSupply() * newMaxSellAmount) / 1000; } function updateMaxWalletAmount(uint256 newPercentage) external onlyOwner { require(((totalSupply() * newPercentage) / 1000) >= (totalSupply() / 5000), "Cannot set lower than 0.5%"); maxWallet = (totalSupply() * newPercentage) / 1000; } function updateSwapEnabled(bool enabled) external onlyOwner(){ swapEnabled = enabled; } function updateBuyFees(uint256 _burnFee, uint256 _liquidityFee) external onlyOwner { _fees.buyBurnFee = _burnFee; _fees.buyLiquidityFee = _liquidityFee; _fees.buyTotalFees = _fees.buyBurnFee + _fees.buyLiquidityFee; require(_fees.buyTotalFees <= 5, "Immutable"); } function updateSellFees(uint256 _burnFee, uint256 _liquidityFee) external onlyOwner { _fees.sellBurnFee = _burnFee; _fees.sellLiquidityFee = _liquidityFee; _fees.sellTotalFees = _fees.sellBurnFee + _fees.sellLiquidityFee; require(_fees.sellTotalFees <= 5, "Immutable"); } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; } function excludeFromWalletLimit(address account, bool excluded) public onlyOwner { _isExcludedMaxWalletAmount[account] = excluded; } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner { require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs"); automatedMarketMakerPairs[pair] = value; } function updateWallets(address newBurnWallet) external onlyOwner{ burnWallet = newBurnWallet; } function isExcludedFromFees(address account) public view returns(bool) { return _isExcludedFromFees[account]; } function _transfer( address from, address to, uint256 amount ) internal override { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(from != address(0xdEaD), "ERC20: transfer from the dEaD address"); require(to != address(0xdEaD), "ERC20: transfer to the dEaD address"); require(!_blacklist[to] && !_blacklist[from], "You have been blacklisted from transfering tokens"); if (amount == 0) { super._transfer(from, to, 0); return; } if ( from != owner() && to != owner() && !swapping ) { if (!tradingActive) { require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active."); } //when buy if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) { require(amount <= maxTransactionBuyAmount, "Buy transfer amount exceeds the maxTransactionAmount."); } //when sell else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionSellAmount, "Sell transfer amount exceeds the maxTransactionAmount."); } if (!_isExcludedMaxWalletAmount[to]) { require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded"); } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= swapTokensAtAmount; if ( canSwap && swapEnabled && !swapping && automatedMarketMakerPairs[to] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swapping = true; swapBack(); swapping = false; } bool takeFee = !swapping; // if any account belongs to _isExcludedFromFee account then remove the fee if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) { takeFee = false; } uint256 fees = 0; // only take fees on buys/sells, do not take on wallet transfers if (takeFee) { // on sell if (automatedMarketMakerPairs[to] && _fees.sellTotalFees > 0) { fees = amount.mul(_fees.sellTotalFees).div(100); tokensForLiquidity += fees * _fees.sellLiquidityFee / _fees.sellTotalFees; tokensForBurn += fees * _fees.sellBurnFee / _fees.sellTotalFees; } // on buy else if (automatedMarketMakerPairs[from] && _fees.buyTotalFees > 0) { fees = amount.mul(_fees.buyTotalFees).div(100); tokensForLiquidity += fees * _fees.buyLiquidityFee / _fees.buyTotalFees; tokensForBurn += fees * _fees.buyBurnFee / _fees.buyTotalFees; } if (fees > 0) { super._transfer(from, address(this), fees); } amount -= fees; } super._transfer(from, to, amount); } function swapTokensForEth(uint256 tokenAmount) private { // generate the uniswap pair path of token -> weth address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); // make the swap uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ); } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity uniswapV2Router.addLiquidityETH{ value: ethAmount } ( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable address(this), block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForBurn ; bool success; if (contractBalance == 0 || totalTokensToSwap == 0) { return; } if (contractBalance > swapTokensAtAmount * 20) { contractBalance = swapTokensAtAmount * 20; } // Halve the amount of liquidity tokens uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2; uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens); uint256 initialETHBalance = address(this).balance; swapTokensForEth(amountToSwapForETH); uint256 ethBalance = address(this).balance.sub(initialETHBalance); uint256 ethForBurn = ethBalance.mul(tokensForBurn).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForBurn; tokensForLiquidity = 0; tokensForBurn = 0; if (liquidityTokens > 0 && ethForLiquidity > 0) { addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } (success,) = address(burnWallet).call{ value: address(this).balance } (""); } }