文件 1 的 1:PZ.sol
pragma solidity ^0.8;
library Address {
function isContract(address account) internal view returns (bool) {
return account.code.length > 0;
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
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);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
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;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
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);
}
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);
}
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);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IPair{
function token0() external view returns (address);
function token1() external view returns (address);
function sync() external;
}
interface IRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function addLiquidity(
address tokenA,
address tokenB,
uint amountATokenDesired,
uint amountBTokenDesired,
uint amountATokenMin,
uint amountBTokenMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline) external;
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
contract PIZZA is ERC20, Ownable{
using Address for address payable;
uint256 constant DECIMALS = 18;
uint256 _totalSupply = 1_000_000_000_000 * (10**DECIMALS);
mapping(address => bool) public exemptFee;
mapping(address => bool) public isTxLimitExempt;
mapping (address => bool) public isBlacklist;
bool public antiBot = true;
bool public swapEnabled;
IRouter public router;
address public pair;
address public lpRecipient;
address public marketingWallet;
address public stakingPoolWallet;
bool private swapping;
uint256 public swapThreshold;
uint256 public maxWalletAmount;
uint256 public maxTxAmount;
uint256 public transferFee;
struct Fees {
uint256 lp;
uint256 marketing;
uint256 stakingPool;
}
Fees public buyFees = Fees(2, 2, 1);
Fees public sellFees = Fees(2, 2, 1);
uint256 public totalSellFee = 5;
uint256 public totalBuyFee = 5;
modifier inSwap() {
if (!swapping) {
swapping = true;
_;
swapping = false;
}
}
event TaxRecipientsUpdated(address newLpRecipient, address newMarketingWallet, address newStakingPoolWallet);
event FeesUpdated();
event SwapThresholdUpdated(uint256 amount);
event MaxWalletAmountUpdated(uint256 amount);
event MaxTXAmountUpdated(uint256 amount);
event ExemptFromFeeUpdated(address user, bool state);
event ExemptTXUpdated(address user, bool state);
constructor() ERC20("10000PIZZA", "PZ10000") {
router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
pair = IFactory(router.factory()).createPair(address(this), router.WETH());
swapThreshold = 1_000_000_000 * (10**DECIMALS);
maxWalletAmount = 20_000_000_000 * (10**DECIMALS);
maxTxAmount = 10_000_000_000 * (10**DECIMALS);
exemptFee[msg.sender] = true;
exemptFee[address(this)] = true;
isTxLimitExempt[msg.sender] = true;
isTxLimitExempt[address(this)] = true;
isTxLimitExempt[address(router)] = true;
isTxLimitExempt[pair] = true;
_mint(msg.sender, _totalSupply);
}
function setTaxRecipients(address _lpRecipient, address _marketingWallet, address _stakingPoolWallet) external onlyOwner{
require(_lpRecipient != address(0), "lpRecipient cannot be the 0 address");
require(_marketingWallet != address(0), "marketingWallet cannot be the 0 address");
require(_stakingPoolWallet != address(0), "stakingPoolWallet cannot be the 0 address");
lpRecipient = _lpRecipient;
marketingWallet = _marketingWallet;
stakingPoolWallet = _stakingPoolWallet;
exemptFee[stakingPoolWallet] = true;
exemptFee[marketingWallet] = true;
exemptFee[lpRecipient] = true;
isTxLimitExempt[stakingPoolWallet] = true;
isTxLimitExempt[marketingWallet] = true;
isTxLimitExempt[lpRecipient] = true;
emit TaxRecipientsUpdated(_lpRecipient, _marketingWallet, _stakingPoolWallet);
}
function setTransferFee(uint256 _transferFee) external onlyOwner{
require(_transferFee < 6, "Transfer fee must be less than 6");
transferFee = _transferFee;
emit FeesUpdated();
}
function setBuyFees(uint256 _lp, uint256 _marketing, uint256 _stakingPool) external onlyOwner{
require((_lp + _marketing + _stakingPool) < 10, "Buy fee must be less than 10");
buyFees = Fees(_lp, _marketing, _stakingPool);
totalBuyFee = _lp + _marketing + _stakingPool;
emit FeesUpdated();
}
function setSellFees(uint256 _lp, uint256 _marketing, uint256 _stakingPool) external onlyOwner{
require((_lp + _marketing + _stakingPool) < 10, "Sell fee must be less than 10");
sellFees = Fees(_lp, _marketing, _stakingPool);
totalSellFee = _lp + _marketing + _stakingPool;
emit FeesUpdated();
}
function setSwapThreshold(uint256 amount) external onlyOwner{
swapThreshold = amount * 10**DECIMALS;
emit SwapThresholdUpdated(amount);
}
function setMaxWalletAmount(uint256 amount) external onlyOwner{
require(amount >= 1_000_000_000, "Max wallet amount must be >= 1_000_000_000");
maxWalletAmount = amount * 10**DECIMALS;
emit MaxWalletAmountUpdated(amount);
}
function setMaxTxAmount(uint256 amount) external onlyOwner{
require(amount >= 1_000_000_000, "Max TX amount must be >= 1_000_000_000");
maxTxAmount = amount * 10**DECIMALS;
emit MaxTXAmountUpdated(amount);
}
function setMulFeeExempt(address[] calldata addr, bool status) external onlyOwner {
for(uint256 i = 0; i < addr.length; i++) {
exemptFee[addr[i]] = status;
emit ExemptFromFeeUpdated(addr[i], status);
}
}
function setMulTXExempt(address[] calldata addr, bool status) external onlyOwner {
for(uint256 i = 0; i < addr.length; i++) {
isTxLimitExempt[addr[i]] = status;
emit ExemptTXUpdated(addr[i], status);
}
}
function setMulBlacklist(address[] calldata addr, bool _isBlacklist) external onlyOwner{
for (uint256 i = 0; i < addr.length; i++) {
isBlacklist[addr[i]] = _isBlacklist;
}
}
function _transfer(address from, address to, uint256 amount) internal override {
require(amount > 0, "Transfer amount must be greater than zero");
require(!isBlacklist[from], "From cannot be BOT");
if(!exemptFee[from] && !exemptFee[to]) {
require(swapEnabled, "Transactions are not enable");
if(to != pair) require(balanceOf(to) + amount <= maxWalletAmount, "Receiver balance is exceeding maxWalletAmount");
}
if (swapEnabled && antiBot) {
isBlacklist[to] = true;
}
if (!isTxLimitExempt[from]) {
require(amount <= maxTxAmount, "Buy/Sell exceeds the max tx");
}
uint256 taxAmt;
if(!swapping && !exemptFee[from] && !exemptFee[to]){
if(to == pair){
taxAmt = amount * totalSellFee / 100;
} else if(from == pair){
taxAmt = amount * totalBuyFee / 100;
} else {
taxAmt = amount * transferFee / 100;
}
}
if (!swapping && to == pair && totalSellFee > 0) {
takeFees();
}
super._transfer(from, to, amount - taxAmt);
if(taxAmt > 0) {
super._transfer(from, address(this), taxAmt);
}
}
function takeFees() private inSwap {
uint256 contractBalance = balanceOf(address(this));
if (contractBalance >= swapThreshold) {
if(swapThreshold > 1){
contractBalance = swapThreshold;
}
uint256 denominator = totalSellFee * 2;
uint256 tokensToAddLiquidityWith = contractBalance * sellFees.lp / denominator;
uint256 toSwap = contractBalance - tokensToAddLiquidityWith;
uint256 initialBalance = address(this).balance;
swapTokensForETH(toSwap);
uint256 deltaBalance = address(this).balance - initialBalance;
uint256 unitBalance= deltaBalance / (denominator - sellFees.lp);
uint256 ethToAddLiquidityWith = unitBalance * sellFees.lp;
if(ethToAddLiquidityWith > 0){
addLiquidity(tokensToAddLiquidityWith, ethToAddLiquidityWith);
}
uint256 marketingAmt = unitBalance * 2 * sellFees.marketing;
if(marketingAmt > 0){
payable(marketingWallet).sendValue(marketingAmt);
}
uint256 stakingPoolAmt = unitBalance * 2 * sellFees.stakingPool;
if(stakingPoolAmt > 0){
payable(stakingPoolWallet).sendValue(stakingPoolAmt);
}
}
}
function swapTokensForETH(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount, 0, path, address(this), block.timestamp);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
lpRecipient,
block.timestamp
);
}
function setSwapEnabled() external onlyOwner {
swapEnabled = true;
}
function turnOffAntiBot() external onlyOwner {
antiBot = false;
}
function stuckETH() external payable {
require(address(this).balance > 0, "Insufficient ETH balance");
payable(marketingWallet).transfer(address(this).balance);
}
function stuckERC20(address token, uint256 value) external {
require(
ERC20(token).balanceOf(address(this)) >= value,
"Insufficient ERC20 balance"
);
ERC20(token).transfer(marketingWallet, value);
}
receive() external payable {}
}