Transaction Hash:
Block:
20278989 at Jul-10-2024 10:08:47 PM +UTC
Transaction Fee:
0.000442415650611238 ETH
$1.17
Gas Used:
46,586 Gas / 9.496751183 Gwei
Emitted Events:
978 |
Token.Approval( owner=[Sender] 0xb2389503b7800b3de59062453d7e3734603be1e2, spender=0x00000000...43aC78BA3, value=115792089237316195423570985008687907853269984665640564039457584007913129639935 )
|
Account State Difference:
Address | Before | After | State Difference | ||
---|---|---|---|---|---|
0x3fFEea07...a43CB5790 | |||||
0x95222290...5CC4BAfe5
Miner
| (beaverbuild) | 12.432120220943847584 Eth | 12.432124832957847584 Eth | 0.000004612014 | |
0xb2389503...4603Be1e2 |
0.101651021133122668 Eth
Nonce: 9
|
0.10120860548251143 Eth
Nonce: 10
| 0.000442415650611238 |
Execution Trace
Token.approve( spender=0x000000000022D473030F116dDEE9F6B43aC78BA3, amount=115792089237316195423570985008687907853269984665640564039457584007913129639935 ) => ( True )
approve[ERC20 (ln:269)]
_approve[ERC20 (ln:270)]
Approval[ERC20 (ln:412)]
_msgSender[ERC20 (ln:270)]
// SPDX-License-Identifier: MIT /* Twitter- https://x.com/peipeicoinerc Telegram- https://t.me/PeiPeicoinerc Website- https://peipeicoin.vip/ */ 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; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap(address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to); event Sync(uint112 reserve0, uint112 reserve1); 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; } /** * @dev Returns the integer division of two unsigned integers. Reverts 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) internal pure returns (uint256) { return div(a, b, 'SafeMath: division by zero'); } /** * @dev Returns the integer division of two unsigned integers. Reverts 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) { 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; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts 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 mod(a, b, 'SafeMath: modulo by zero'); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message 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, 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); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view 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 { emit OwnershipTransferred(_owner, address(0)); _owner = 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'); 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 Token is ERC20, Ownable { using SafeMath for uint256; IUniswapV2Router02 public immutable uniswapV2Router; address public immutable uniswapV2Pair; address public constant deadAddress = address(0xdead); bool private swapping; address public marketingWallet; address public devWallet; address public buyBackWallet; uint256 public maxTransactionAmount; uint256 public maxWallet; uint8 private _decimals; bool public limitsInEffect = true; bool public tradingActive = false; bool public swapEnabled = false; bool public rescueSwap = false; uint256 public tradingActiveBlock; uint256 public buyTotalFees; uint256 public buyMarketingFee; uint256 public buyLiquidityFee; uint256 public buyDevFee; uint256 public buyBuyBackFee; uint256 public sellTotalFees; uint256 public sellMarketingFee; uint256 public sellLiquidityFee; uint256 public sellDevFee; uint256 public sellBuyBackFee; uint256 public tokensForMarketing; uint256 public tokensForLiquidity; uint256 public tokensForDev; uint256 public tokensForBuyBack; /******************/ // exlcude from fees and max transaction amount mapping(address => bool) private _isExcludedFromFees; mapping(address => bool) public _isExcludedMaxTransactionAmount; // 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 UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress); event ExcludeFromFees(address indexed account, bool isExcluded); event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value); event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet); event devWalletUpdated(address indexed newWallet, address indexed oldWallet); event buyBackWalletUpdated(address indexed newWallet, address indexed oldWallet); event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity); event BuyBackTriggered(uint256 amount); event OwnerForcedSwapBack(uint256 timestamp); constructor() ERC20('PeiPei', 'PEIPEI') { address _owner = _msgSender(); _decimals = 18; uint256 totalSupply = 42069 * (10 ** 10) * (10 ** _decimals); maxTransactionAmount = (totalSupply * 1) / 100; // 1% maxTransactionAmountTxn maxWallet = (totalSupply * 1) / 100; // 1% maxWallet buyMarketingFee = 0; buyLiquidityFee = 0; buyDevFee = 0; buyBuyBackFee = 0; buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee + buyBuyBackFee; sellMarketingFee = 0; sellLiquidityFee = 0; sellDevFee = 0; sellBuyBackFee = 0; sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee + sellBuyBackFee; marketingWallet = address(_owner); // set as marketing wallet devWallet = address(_owner); // set as dev wallet buyBackWallet = address(_owner); // set as buyBackWallet address currentRouter; //Adding Variables for all the routers for easier deployment for our customers. if (block.chainid == 56) { currentRouter = 0x10ED43C718714eb63d5aA57B78B54704E256024E; // PCS Router } else if (block.chainid == 97) { currentRouter = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1; // PCS Testnet } else if (block.chainid == 43114) { currentRouter = 0x60aE616a2155Ee3d9A68541Ba4544862310933d4; //Avax Mainnet } else if (block.chainid == 137) { currentRouter = 0xa5E0829CaCEd8fFDD4De3c43696c57F7D7A678ff; //Polygon Ropsten } else if (block.chainid == 250) { currentRouter = 0xF491e7B69E4244ad4002BC14e878a34207E38c29; //SpookySwap FTM } else if (block.chainid == 3) { currentRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; //Ropsten } else if (block.chainid == 1 || block.chainid == 4) { currentRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; //Mainnet } else { revert(); } //End of Router Variables. IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(currentRouter); excludeFromMaxTransaction(address(_uniswapV2Router), true); uniswapV2Router = _uniswapV2Router; uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH()); excludeFromMaxTransaction(address(uniswapV2Pair), true); _setAutomatedMarketMakerPair(address(uniswapV2Pair), true); // exclude from paying fees or having max transaction amount excludeFromFees(_owner, true); excludeFromFees(address(this), true); excludeFromFees(address(0xdead), true); excludeFromMaxTransaction(_owner, true); excludeFromMaxTransaction(address(this), true); excludeFromMaxTransaction(address(0xdead), true); /* _mint is an internal function in ERC20.sol that is only called here, and CANNOT be called ever again */ _mint(_owner, totalSupply); transferOwnership(_owner); } receive() external payable {} // once enabled, can never be turned off function enableTrading() external onlyOwner { tradingActive = true; swapEnabled = true; tradingActiveBlock = block.number; } // remove limits after token is stable function removeLimits() external onlyOwner returns (bool) { limitsInEffect = false; return true; } function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool) { require(!tradingActive, 'Trading is already active, cannot airdrop after launch.'); require(airdropWallets.length == amounts.length, 'arrays must be the same length'); require(airdropWallets.length < 200, 'Can only airdrop 200 wallets per txn due to gas limits'); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input. for (uint256 i = 0; i < airdropWallets.length; i++) { address wallet = airdropWallets[i]; uint256 amount = amounts[i]; _transfer(msg.sender, wallet, amount); } return true; } function updateMaxAmount(uint256 newNum) external onlyOwner { require(newNum >= ((totalSupply() * 1) / 100) / (10 ** _decimals), 'Cannot set maxTransactionAmount lower than 1%'); maxTransactionAmount = newNum * (10 ** _decimals); } function updateMaxWallet(uint256 newNum) external onlyOwner { require(newNum >= ((totalSupply() * 1) / 100) / (10 ** _decimals), 'Cannot set maxTransactionAmount lower than 1%'); maxWallet = newNum * (10 ** _decimals); } function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner { _isExcludedMaxTransactionAmount[updAds] = isEx; } function decimals() public view override returns (uint8) { return _decimals; } // only use to disable contract sales if absolutely necessary (emergency use only) function updateSwapEnabled(bool enabled) external onlyOwner { swapEnabled = enabled; } // only use this to disable swapback and send tax in form of tokens function updateRescueSwap(bool enabled) external onlyOwner { rescueSwap = enabled; } function excludeFromFees(address account, bool excluded) public onlyOwner { _isExcludedFromFees[account] = excluded; emit ExcludeFromFees(account, excluded); } function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner { require(pair != uniswapV2Pair, 'The pair cannot be removed from automatedMarketMakerPairs'); _setAutomatedMarketMakerPair(pair, value); } function _setAutomatedMarketMakerPair(address pair, bool value) private { automatedMarketMakerPairs[pair] = value; emit SetAutomatedMarketMakerPair(pair, value); } function updateMarketingWallet(address newMarketingWallet) external onlyOwner { emit marketingWalletUpdated(newMarketingWallet, marketingWallet); marketingWallet = newMarketingWallet; } function updateDevWallet(address newWallet) external onlyOwner { emit devWalletUpdated(newWallet, devWallet); devWallet = newWallet; } function updateBuyBackWallet(address newWallet) external onlyOwner { emit buyBackWalletUpdated(newWallet, buyBackWallet); buyBackWallet = newWallet; } function isExcludedFromFees(address account) external 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 (!tradingActive) { require(_isExcludedFromFees[from] || _isExcludedFromFees[to], 'Trading is not active.'); } if (amount == 0) { super._transfer(from, to, 0); return; } if (limitsInEffect) { if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !(_isExcludedFromFees[from] || _isExcludedFromFees[to]) && !swapping) { //when buy if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) { require(amount <= maxTransactionAmount, 'Buy transfer amount exceeds the maxTransactionAmount.'); require(amount + balanceOf(to) <= maxWallet, 'Max wallet exceeded'); } //when sell else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) { require(amount <= maxTransactionAmount, 'Sell transfer amount exceeds the maxTransactionAmount.'); } else { require(amount + balanceOf(to) <= maxWallet, 'Max wallet exceeded'); } } } uint256 contractTokenBalance = balanceOf(address(this)); bool canSwap = contractTokenBalance > 0; if (canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_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) { if (automatedMarketMakerPairs[to]) { if (sellTotalFees > 0) { fees = amount.mul(sellTotalFees).div(100); tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees; tokensForDev += (fees * sellDevFee) / sellTotalFees; tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees; tokensForBuyBack += (fees * sellBuyBackFee) / sellTotalFees; } } // on buy else if (automatedMarketMakerPairs[from]) { if (buyTotalFees > 0) { fees = amount.mul(buyTotalFees).div(100); tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees; tokensForDev += (fees * buyDevFee) / buyTotalFees; tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees; tokensForBuyBack += (fees * buyBuyBackFee) / 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 try uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, // accept any amount of ETH path, address(this), block.timestamp ) {} catch {} } function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { // approve token transfer to cover all possible scenarios _approve(address(this), address(uniswapV2Router), tokenAmount); // add the liquidity try uniswapV2Router.addLiquidityETH{ value: ethAmount }( address(this), tokenAmount, 0, // slippage is unavoidable 0, // slippage is unavoidable deadAddress, block.timestamp ) {} catch {} } function resetTaxAmount() public onlyOwner { tokensForLiquidity = 0; tokensForMarketing = 0; tokensForDev = 0; tokensForBuyBack = 0; } function swapBack() private { uint256 contractBalance = balanceOf(address(this)); if (rescueSwap) { if (contractBalance > 0) { super._transfer(address(this), marketingWallet, contractBalance); } return; } uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForDev + tokensForBuyBack; bool success; if (contractBalance == 0 || totalTokensToSwap == 0) { return; } // 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 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap); uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap); uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap); uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack; tokensForLiquidity = 0; tokensForMarketing = 0; tokensForDev = 0; tokensForBuyBack = 0; (success, ) = address(devWallet).call{ value: ethForDev }(''); (success, ) = address(buyBackWallet).call{ value: ethForBuyBack }(''); if (liquidityTokens > 0 && ethForLiquidity > 0) { addLiquidity(liquidityTokens, ethForLiquidity); emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity); } (success, ) = address(marketingWallet).call{ value: address(this).balance }(''); } }