/** * SPDX-License-Identifier: MIT * https://arena.gg * https://t.me/ArenaGG_Portal * https://twitter.com/ArenaGG */ pragma solidity >=0.8.19; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } 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 { 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); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); unchecked { _approve(sender, _msgSender(), currentAllowance - amount); } 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] + 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) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(_msgSender(), spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This 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); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[sender] = senderBalance - amount; } _balances[recipient] += amount; emit Transfer(sender, recipient, amount); _afterTokenTransfer(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 += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(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); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(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 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 {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} } library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // 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 (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @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) { return a + b; } /** * @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 a - b; } /** * @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) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } interface IUniswapV2Factory { event PairCreated( address indexed token0, address indexed token1, address pair, uint256 ); 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(uint256) external view returns (address pair); function allPairsLength() external view returns (uint256); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } interface IUniswapV2Pair { event Approval( address indexed owner, address indexed spender, uint256 value ); event Transfer(address indexed from, address indexed to, uint256 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 (uint256); function balanceOf(address owner) external view returns (uint256); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 value) external returns (bool); function transfer(address to, uint256 value) external returns (bool); function transferFrom( address from, address to, uint256 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 (uint256); function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; event Mint(address indexed sender, uint256 amount0, uint256 amount1); event Burn( address indexed sender, uint256 amount0, uint256 amount1, address indexed to ); event Swap( address indexed sender, uint256 amount0In, uint256 amount1In, uint256 amount0Out, uint256 amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint256); 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 (uint256); function price1CumulativeLast() external view returns (uint256); function kLast() external view returns (uint256); function mint(address to) external returns (uint256 liquidity); function burn(address to) external returns (uint256 amount0, uint256 amount1); function swap( uint256 amount0Out, uint256 amount1Out, address to, bytes calldata data ) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } interface IUniswapV2Router02 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint256 amountADesired, uint256 amountBDesired, uint256 amountAMin, uint256 amountBMin, address to, uint256 deadline ) external returns ( uint256 amountA, uint256 amountB, uint256 liquidity ); function addLiquidityETH( address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline ) external payable returns ( uint256 amountToken, uint256 amountETH, uint256 liquidity ); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; } contract ARENA is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniV2Routr; address public immutable mainUniV2Pair; bool private swappingBack; address public lpTokenReceiver; address public profitWallet; uint256 public maxTokensForSwapback; uint256 public minTokensForSwapback; uint256 public maxTxLimit; uint256 public maxWalletLimit; bool public limitsEnabled = true; bool public swapbackEnabled = false; bool public isTradingActive = false; // Anti-bot and anti-whale mappings and variables mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch bool public earlyTransferDelayEnabled = true; uint256 public buyTotalFees; uint256 public buyProfitFee; uint256 public buyLiquidityFee; uint256 public sellTotalFees; uint256 public sellProfitFee; uint256 public sellLiquidityFee; uint256 public tokensForProfit; uint256 public tokensForLiquidity; /******************/ // exlcude from fees and max transaction amount mapping(address => bool) private _isExcludedFromFees; mapping(address => bool) public _isExcludedFromAntiWhale; // 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 extraAMMPairs; event UpdateUniswapV2Router( address indexed newAddress, address indexed oldAddress ); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event profitWalletUpdated( address indexed newWallet, address indexed oldWallet ); event SwapAndLiquify( uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity ); constructor() ERC20("Arena Token", "ARENA") { IUniswapV2Router02 _uniV2Routr = IUniswapV2Router02( 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D ); excludeFromAntiWhale(address(_uniV2Routr), true); uniV2Routr = _uniV2Routr; mainUniV2Pair = IUniswapV2Factory(_uniV2Routr.factory()) .createPair(address(this), _uniV2Routr.WETH()); excludeFromAntiWhale(address(mainUniV2Pair), true); _setAutomatedMarketMakerPair(address(mainUniV2Pair), true); uint256 _buyProfitFee = 25; uint256 _buyLiquidityFee = 25; uint256 _sellProfitFee = 25; uint256 _sellLiquidityFee = 25; uint256 totalSupply = 10000000 * 1e18; maxTxLimit = (totalSupply * 1) / 100; // 1% of total supply maxWalletLimit = (totalSupply * 1) / 100; // 1% of total supply minTokensForSwapback = (totalSupply * 2) / 1000; // 0.2% swapback trigger maxTokensForSwapback = (totalSupply * 6) / 1000; // 0.6% max swapback buyProfitFee = _buyProfitFee; buyLiquidityFee = _buyLiquidityFee; buyTotalFees = buyProfitFee + buyLiquidityFee; sellProfitFee = _sellProfitFee; sellLiquidityFee = _sellLiquidityFee; sellTotalFees = sellProfitFee + sellLiquidityFee; profitWallet = address(0x4cB31EF78a46B9292f92072F7FB3508CfD33B6e8); // Input Profit Wallet Address lpTokenReceiver = msg.sender; // exclude from paying fees or having max transaction amount excludeFromFees(owner(), true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromFees(profitWallet, true); excludeFromAntiWhale(owner(), true); excludeFromAntiWhale(address(this), true); excludeFromAntiWhale(address(0xdead), true); excludeFromAntiWhale(profitWallet, 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 {} /// @dev Launches the token and enables tradin. function getInTheArena() external onlyOwner { require(!isTradingActive, "Trading has already been enabled"); buyProfitFee = 100; buyLiquidityFee = 100; buyTotalFees = buyProfitFee + buyLiquidityFee; sellProfitFee = 150; sellLiquidityFee = 150; sellTotalFees = sellProfitFee + sellLiquidityFee; isTradingActive = true; swapbackEnabled = true; } /// @dev Removes the max wallet and max transaction limits and the early transfer delay function removeEarlyLimits() external onlyOwner returns (bool) { limitsEnabled = false; return true; } /// @dev Disables the Same wallet block transfer delay function disableEarlyTransferDelay() external onlyOwner returns (bool) { earlyTransferDelayEnabled = false; return true; } /// @dev Changes the minimum balance of tokens the contract must have before swappingBack tokens for ETH. Base 100000, so 0.5% = 500. function updateSwapbackParams(uint256 newMin, uint256 newMax) external onlyOwner returns (bool) { require( newMin >= 1, "Swap amount cannot be lower than 0.001% total supply." ); require( newMin <= 500, "Swap amount cannot be higher than 0.5% total supply." ); require( newMin <= newMax, "The higher boundary should be higher or equal to the lower one" ); minTokensForSwapback = newMin * totalSupply()/ 100000; maxTokensForSwapback = newMax * totalSupply()/ 100000; return true; } /// @dev Changes the maximum amount of tokens that can be bought or sold in a single transaction /// @param newNum Base 1000, so 1% = 10 function updateMaxTxLimit(uint256 newNum) external onlyOwner { require( newNum >= 1, "Cannot set maxTxLimit lower than 0.1%" ); maxTxLimit = newNum * totalSupply()/ 1000; } /// @dev Changes the maximum amount of tokens a wallet can hold /// @param newNum Base 1000, so 1% = 10 function updateMaxWalletLimit(uint256 newNum) external onlyOwner { require( newNum >= 5, "Cannot set maxWalletLimit lower than 0.5%" ); maxWalletLimit = newNum * totalSupply()/1000; } /// @dev Sets if a wallet is excluded from the max wallet and tx limits /// @param updAds The wallet to update /// @param isEx If the wallet is excluded or not function excludeFromAntiWhale(address updAds, bool isEx) public onlyOwner { _isExcludedFromAntiWhale[updAds] = isEx; } /// @dev Sets if the contract can sell tokens /// @param enabled set to false to disable selling function updateSwapbackEnabled(bool enabled) external onlyOwner { swapbackEnabled = enabled; } /// @dev Sets the fees for buys /// @param _profitFee The fee for the profit wallet /// @param _liquidityFee The fee for the liquidity pool function updateBuyFees( uint256 _profitFee, uint256 _liquidityFee ) external onlyOwner { buyProfitFee = _profitFee; buyLiquidityFee = _liquidityFee; buyTotalFees = buyProfitFee + buyLiquidityFee; require(buyTotalFees <= 50, "Must keep fees at 5% or less"); } /// @dev Sets the fees for sells /// @param _profitFee The fee for the profit wallet /// @param _liquidityFee The fee for the liquidity pool function updateSellFees( uint256 _profitFee, uint256 _liquidityFee ) external onlyOwner { sellProfitFee = _profitFee; sellLiquidityFee = _liquidityFee; sellTotalFees = sellProfitFee + sellLiquidityFee; require(sellTotalFees <= 50, "Must keep fees at 5% or less"); } /// @dev Sets if a wallet is excluded from fees /// @param account The wallet to update /// @param excluded If the wallet is excluded or not function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } /// @dev Sets an address as a new liquidity pair. You probably dont want to do this. /// @param pair The new pair function setAsExtraAMMPair(address pair, bool value) public onlyOwner { require( pair != mainUniV2Pair, "The pair cannot be removed from extraAMMPairs" ); _setAutomatedMarketMakerPair(pair, value); } function _setAutomatedMarketMakerPair(address pair, bool value) private { extraAMMPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateProfitWallet(address newProfitWallet) external onlyOwner { emit profitWalletUpdated(newProfitWallet, profitWallet); profitWallet = newProfitWallet; } function updateLPTokenWallet(address newLPWallet) external onlyOwner { lpTokenReceiver = newLPWallet; } 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"); if (amount == 0) { super._transfer(from, to, 0); return; } if (limitsEnabled) { if ( from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swappingBack ) { if (!isTradingActive) { require( _isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active." ); } // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch. if (earlyTransferDelayEnabled) { if ( to != owner() && to != address(uniV2Routr) && to != address(mainUniV2Pair) ) { require( _holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed." ); _holderLastTransferTimestamp[tx.origin] = block.number; } } //when buy if ( extraAMMPairs[from] && !_isExcludedFromAntiWhale[to] ) { require( amount <= maxTxLimit, "Buy transfer amount exceeds the maxTxLimit." ); require( amount + balanceOf(to) <= maxWalletLimit, "Max wallet exceeded" ); } //when sell else if ( extraAMMPairs[to] && !_isExcludedFromAntiWhale[from] ) { require( amount <= maxTxLimit, "Sell transfer amount exceeds the maxTxLimit." ); } else if (!_isExcludedFromAntiWhale[to]) { require( amount + balanceOf(to) <= maxWalletLimit, "Max wallet exceeded" ); } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance >= minTokensForSwapback; if ( canSwap && swapbackEnabled && !swappingBack && !extraAMMPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to] ) { swappingBack = true; swapBack(); swappingBack = false; } bool takeFee = !swappingBack; // 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 (extraAMMPairs[to] && sellTotalFees > 0) { fees = amount.mul(sellTotalFees).div(1000); tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees; tokensForProfit += (fees * sellProfitFee) / sellTotalFees; } // on buy else if (extraAMMPairs[from] && buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(1000); tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees; tokensForProfit += (fees * buyProfitFee) / 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] = uniV2Routr.WETH(); _approve(address(this), address(uniV2Routr), tokenAmount); // make the swap uniV2Routr.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(uniV2Routr), tokenAmount); // add the liquidity uniV2Routr.addLiquidityETH{value: ethAmount}( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable lpTokenReceiver, block.timestamp ); } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); uint256 totalTokensToSwap = tokensForLiquidity + tokensForProfit; bool success; if (contractBalance == 0 || totalTokensToSwap == 0) { return; } if (contractBalance > maxTokensForSwapback) { contractBalance = maxTokensForSwapback; } // 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 ethForProfit = ethBalance.mul(tokensForProfit).div( totalTokensToSwap ); uint256 ethForLiquidity = ethBalance - ethForProfit; tokensForLiquidity = 0; tokensForProfit = 0; if (liquidityTokens > 0 && ethForLiquidity > 0) { addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify( amountToSwapForETH, ethForLiquidity, tokensForLiquidity ); } (success, ) = address(profitWallet).call{ value: address(this).balance }(""); } function startGame() public {} function endGame() public {} }

Arena.GG

Start building on QuickNode

Source code: