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pragma solidity 0.8.19;
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interface IERC20 {
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function totalSupply() external view returns (uint256);
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function decimals() external view returns (uint8);
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function symbol() external view returns (string memory);
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function name() external view returns (string memory);
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function balanceOf(address account) external view returns (uint256);
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function transfer(address recipient, uint256 amount) external returns (bool);
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function allowance(address __owner, address spender) external view returns (uint256);
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function approve(address spender, uint256 amount) external returns (bool);
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function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
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event Transfer(address indexed from, address indexed to, uint256 value);
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event Approval(address indexed _owner, address indexed spender, uint256 value);
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}
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interface IUniswapV2Factory {
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function createPair(address tokenA, address tokenB) external returns (address pair);
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}
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interface IUniswapV2Router02 {
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function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
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function WETH() external pure returns (address);
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function factory() external pure returns (address);
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function addLiquidityETH(address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external payable returns (uint amountToken, uint amountETH, uint liquidity);
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}
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abstract contract Auth {
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address internal _owner;
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constructor(address creatorOwner) {
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_owner = creatorOwner;
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}
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modifier onlyOwner() {
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require(msg.sender == _owner, "Only owner can call this");
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_;
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}
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function owner() public view returns (address) {
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return _owner;
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}
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function transferOwnership(address payable newOwner) external onlyOwner {
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_owner = newOwner;
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emit OwnershipTransferred(newOwner);
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}
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function renounceOwnership() external onlyOwner {
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_owner = address(0);
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emit OwnershipTransferred(address(0));
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}
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event OwnershipTransferred(address _owner);
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}
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contract PAI is IERC20, Auth {
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uint8 private constant _decimals = 9;
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uint256 private constant _totalSupply = 100_000_000 * (10**_decimals);
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string private constant _name = "Primed AI";
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string private constant _symbol = "PAI";
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uint8 private antiSnipeTax1 = 87;
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uint8 private antiSnipeTax2 = 42;
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uint8 private antiSnipeBlocks1 = 3;
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uint8 private antiSnipeBlocks2 = 5;
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mapping (address => uint256) private _lastBuyBlock;
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uint8 private _buyTaxRate = 3;
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uint8 private _sellTaxRate = 3;
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uint16 private _taxSharesMarketing = 61;
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uint16 private _taxSharesDevelopment = 39;
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uint16 private _taxSharesLP = 0;
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uint16 private _totalTaxShares = _taxSharesMarketing + _taxSharesDevelopment + _taxSharesLP;
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address payable private _walletMarketing = payable(0x159014fe79DB442779b871355D22124eD3c0b474);
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address payable private _walletDevelopment = payable(0x35b3591DDa228d9E175cC895611cB45E02928AF7);
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uint256 private _launchBlock;
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uint256 private _maxTxAmount = _totalSupply;
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uint256 private _maxWalletAmount = _totalSupply;
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uint256 private _taxSwapMin = _totalSupply * 10 / 100000;
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uint256 private _taxSwapMax = _totalSupply * 100 / 100000;
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mapping (address => uint256) private _balances;
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mapping (address => mapping (address => uint256)) private _allowances;
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mapping (address => bool) private _noFees;
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mapping (address => bool) private _noLimits;
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address private _lpOwner;
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address private constant _swapRouterAddress = address(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
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IUniswapV2Router02 private _primarySwapRouter = IUniswapV2Router02(_swapRouterAddress);
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address private _primaryLP;
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mapping (address => bool) private _isLP;
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bool private _tradingOpen;
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bool private _inTaxSwap = false;
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modifier lockTaxSwap {
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_inTaxSwap = true;
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_;
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_inTaxSwap = false;
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}
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event TokensAirdropped(uint256 totalWallets, uint256 totalTokens);
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event TokensBurned(address indexed burnedByWallet, uint256 tokenAmount);
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constructor() Auth(msg.sender) {
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_lpOwner = msg.sender;
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_balances[msg.sender] = _totalSupply * 14 / 100;
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emit Transfer(address(0), msg.sender, _balances[msg.sender]);
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_balances[address(this)] = _totalSupply - _balances[msg.sender];
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emit Transfer(address(0), address(this), _balances[address(this)]);
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_noFees[_owner] = true;
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_noFees[address(this)] = true;
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_noFees[_swapRouterAddress] = true;
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_noFees[_walletMarketing] = true;
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_noFees[_walletDevelopment] = true;
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_noLimits[_owner] = true;
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_noLimits[address(this)] = true;
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_noLimits[_swapRouterAddress] = true;
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_noLimits[_walletMarketing] = true;
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_noLimits[_walletDevelopment] = true;
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}
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receive() external payable {}
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function totalSupply() external pure override returns (uint256) { return _totalSupply; }
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function decimals() external pure override returns (uint8) { return _decimals; }
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function symbol() external pure override returns (string memory) { return _symbol; }
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function name() external pure override returns (string memory) { return _name; }
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function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
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function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
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function approve(address spender, uint256 amount) public override returns (bool) {
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_allowances[msg.sender][spender] = amount;
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emit Approval(msg.sender, spender, amount);
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return true;
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}
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function transfer(address recipient, uint256 amount) external override returns (bool) {
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require(_checkTradingOpen(msg.sender), "Trading not open");
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return _transferFrom(msg.sender, recipient, amount);
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}
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function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
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require(_checkTradingOpen(sender), "Trading not open");
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if(_allowances[sender][msg.sender] != type(uint256).max){
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_allowances[sender][msg.sender] = _allowances[sender][msg.sender] - amount;
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}
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return _transferFrom(sender, recipient, amount);
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}
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function _approveRouter(uint256 _tokenAmount) internal {
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if ( _allowances[address(this)][_swapRouterAddress] < _tokenAmount ) {
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_allowances[address(this)][_swapRouterAddress] = type(uint256).max;
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emit Approval(address(this), _swapRouterAddress, type(uint256).max);
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}
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}
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function addLiquidity() external payable onlyOwner lockTaxSwap {
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require(_primaryLP == address(0), "LP exists");
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require(!_tradingOpen, "trading is open");
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require(msg.value > 0 || address(this).balance>0, "No ETH in contract or message");
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require(_balances[address(this)]>0, "No tokens in contract");
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_primaryLP = IUniswapV2Factory(_primarySwapRouter.factory()).createPair(address(this), _primarySwapRouter.WETH());
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_addLiquidity(_balances[address(this)], address(this).balance, false);
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_isLP[_primaryLP] = true;
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_openTrading();
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}
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function _addLiquidity(uint256 _tokenAmount, uint256 _ethAmountWei, bool autoburn) internal {
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address lpTokenRecipient = _lpOwner;
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if ( autoburn ) { lpTokenRecipient = address(0); }
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_approveRouter(_tokenAmount);
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_primarySwapRouter.addLiquidityETH{value: _ethAmountWei} ( address(this), _tokenAmount, 0, 0, lpTokenRecipient, block.timestamp );
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}
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function _openTrading() internal {
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_maxTxAmount = _totalSupply * 1 / 100;
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_maxWalletAmount = _totalSupply * 1 / 100;
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_tradingOpen = true;
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_launchBlock = block.number;
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}
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function antiMevCheck(address sender, address recipient) private returns (bool) {
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uint8 errorCount;
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if ( block.number < (_launchBlock + antiSnipeBlocks1 + antiSnipeBlocks2 + 10) && block.number >= (_launchBlock + antiSnipeBlocks1) ) {
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if (_isLP[sender]) {
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if ( !_noFees[recipient] && !_noLimits[recipient]) {
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_lastBuyBlock[recipient] = block.number;
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}
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if ( recipient != tx.origin ) {
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errorCount++;
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}
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} else if ( _lastBuyBlock[sender] == block.number) {
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errorCount++;
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}
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if ( tx.gasprice > 0) {
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if ( tx.gasprice == block.basefee || tx.gasprice > block.basefee + (20*(10**9)) ) {
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errorCount++;
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}
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}
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}
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return (errorCount == 0);
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}
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function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
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require(sender != address(0), "No transfers from Zero wallet");
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if (!_tradingOpen) {
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require(_noFees[sender] && _noLimits[sender], "Trading not open");
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}
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if ( !_inTaxSwap && _isLP[recipient] ) {
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_swapTaxAndLiquify();
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}
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require(antiMevCheck(sender, recipient), "MEV bots not allowed" );
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if ( sender != address(this) && recipient != address(this) && sender != _owner ) {
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require(_checkLimits(sender, recipient, amount), "TX exceeds limits");
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}
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uint256 _taxAmount = _calculateTax(sender, recipient, amount);
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uint256 _transferAmount = amount - _taxAmount;
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_balances[sender] = _balances[sender] - amount;
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if ( _taxAmount > 0 ) {
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_balances[address(this)] = _balances[address(this)] + _taxAmount;
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}
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_balances[recipient] = _balances[recipient] + _transferAmount;
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emit Transfer(sender, recipient, amount);
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return true;
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}
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function _checkLimits(address sender, address recipient, uint256 transferAmount) internal view returns (bool) {
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bool limitCheckPassed = true;
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if ( _tradingOpen && !_noLimits[sender] && !_noLimits[recipient] ) {
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if ( transferAmount > _maxTxAmount ) { limitCheckPassed = false; }
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else if ( !_isLP[recipient] && (_balances[recipient] + transferAmount > _maxWalletAmount) ) { limitCheckPassed = false; }
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}
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return limitCheckPassed;
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}
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function _checkTradingOpen(address sender) private view returns (bool){
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bool checkResult = false;
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if ( _tradingOpen ) { checkResult = true; }
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else if (_noFees[sender] && _noLimits[sender]) { checkResult = true; }
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return checkResult;
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}
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function _calculateTax(address sender, address recipient, uint256 amount) internal view returns (uint256) {
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uint256 taxAmount;
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if ( !_tradingOpen || _noFees[sender] || _noFees[recipient] ) {
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taxAmount = 0;
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} else if ( block.number >= _launchBlock + antiSnipeBlocks1 + antiSnipeBlocks2 ) {
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if ( _isLP[sender] ) {
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taxAmount = amount * _buyTaxRate / 100;
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} else if ( _isLP[recipient] ) {
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taxAmount = amount * _sellTaxRate / 100;
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} else {
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taxAmount = 0;
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}
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} else if ( block.number >= _launchBlock + antiSnipeBlocks1 ) {
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taxAmount = amount * antiSnipeTax2 / 100;
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} else if ( block.number >= _launchBlock) {
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taxAmount = amount * antiSnipeTax1 / 100;
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}
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return taxAmount;
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}
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function exemptFromFees(address wallet) external view returns (bool) {
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return _noFees[wallet];
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}
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function exemptFromLimits(address wallet) external view returns (bool) {
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return _noLimits[wallet];
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}
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function setExempt(address wallet, bool noFees, bool noLimits) external onlyOwner {
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if (noLimits || noFees) { require(!_isLP[wallet], "Cannot exempt LP"); }
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_noFees[ wallet ] = noFees;
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_noLimits[ wallet ] = noLimits;
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}
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function buyFee() external view returns(uint8) {
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return _buyTaxRate;
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}
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function sellFee() external view returns(uint8) {
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return _sellTaxRate;
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}
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function feeSplit() external view returns (uint16 marketing, uint16 development, uint16 LP ) {
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return ( _taxSharesMarketing, _taxSharesDevelopment, _taxSharesLP);
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}
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function setFees(uint8 buy, uint8 sell) external onlyOwner {
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require(buy + sell <= 66, "Roundtrip too high");
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_buyTaxRate = buy;
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_sellTaxRate = sell;
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}
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function setFeeSplit(uint16 sharesAutoLP, uint16 sharesMarketing, uint16 sharesDevelopment) external onlyOwner {
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uint16 totalShares = sharesAutoLP + sharesMarketing + sharesDevelopment;
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require( totalShares > 0, "All cannot be 0");
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_taxSharesLP = sharesAutoLP;
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_taxSharesMarketing = sharesMarketing;
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_taxSharesDevelopment = sharesDevelopment;
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_totalTaxShares = totalShares;
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}
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function walletMarketing() external view returns (address) {
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return _walletMarketing;
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}
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function walletDevelopment() external view returns (address) {
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return _walletDevelopment;
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}
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function updateWallets(address marketing, address development, address LPtokens) external onlyOwner {
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require(!_isLP[marketing] && !_isLP[development] && !_isLP[LPtokens], "LP cannot be tax wallet");
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_walletMarketing = payable(marketing);
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_walletDevelopment = payable(development);
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_lpOwner = LPtokens;
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_noFees[marketing] = true;
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_noLimits[marketing] = true;
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_noFees[development] = true;
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_noLimits[development] = true;
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}
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function maxWallet() external view returns (uint256) {
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return _maxWalletAmount;
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}
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function maxTransaction() external view returns (uint256) {
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return _maxTxAmount;
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}
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function swapAtMin() external view returns (uint256) {
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return _taxSwapMin;
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}
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function swapAtMax() external view returns (uint256) {
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return _taxSwapMax;
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}
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function setLimits(uint16 maxTransactionPermille, uint16 maxWalletPermille) external onlyOwner {
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uint256 newTxAmt = _totalSupply * maxTransactionPermille / 1000 + 1;
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require(newTxAmt >= _maxTxAmount, "tx too low");
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_maxTxAmount = newTxAmt;
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uint256 newWalletAmt = _totalSupply * maxWalletPermille / 1000 + 1;
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require(newWalletAmt >= _maxWalletAmount, "wallet too low");
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_maxWalletAmount = newWalletAmt;
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}
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function setTaxSwap(uint32 minValue, uint32 minDivider, uint32 maxValue, uint32 maxDivider) external onlyOwner {
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_taxSwapMin = _totalSupply * minValue / minDivider;
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_taxSwapMax = _totalSupply * maxValue / maxDivider;
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require(_taxSwapMax>=_taxSwapMin, "Min/Max error");
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require(_taxSwapMax>_totalSupply / 100000, "Max too low");
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require(_taxSwapMax<_totalSupply / 100, "Max too high");
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}
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function _burnTokens(address fromWallet, uint256 amount) private {
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if ( amount > 0 ) {
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_balances[fromWallet] -= amount;
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_balances[address(0)] += amount;
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emit Transfer(fromWallet, address(0), amount);
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}
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}
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function _swapTaxAndLiquify() private lockTaxSwap {
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uint256 _taxTokensAvailable = balanceOf(address(this));
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if ( _taxTokensAvailable >= _taxSwapMin && _tradingOpen ) {
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if ( _taxTokensAvailable >= _taxSwapMax ) { _taxTokensAvailable = _taxSwapMax; }
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uint256 _tokensForLP = _taxTokensAvailable * _taxSharesLP / _totalTaxShares / 2;
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uint256 _tokensToSwap = _taxTokensAvailable - _tokensForLP;
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if( _tokensToSwap > 10**_decimals ) {
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uint256 _ethPreSwap = address(this).balance;
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_swapTaxTokensForEth(_tokensToSwap);
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uint256 _ethSwapped = address(this).balance - _ethPreSwap;
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if ( _taxSharesLP > 0 ) {
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uint256 _ethWeiAmount = _ethSwapped * _taxSharesLP / _totalTaxShares ;
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_approveRouter(_tokensForLP);
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_addLiquidity(_tokensForLP, _ethWeiAmount, false);
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}
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}
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uint256 _contractETHBalance = address(this).balance;
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if(_contractETHBalance > 0) { _distributeTaxEth(_contractETHBalance); }
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}
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}
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function _swapTaxTokensForEth(uint256 tokenAmount) private {
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_approveRouter(tokenAmount);
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address[] memory path = new address[](2);
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path[0] = address(this);
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path[1] = _primarySwapRouter.WETH();
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_primarySwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp);
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}
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function _distributeTaxEth(uint256 amount) private {
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uint16 _taxShareTotal = _taxSharesMarketing + _taxSharesDevelopment;
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if (_taxShareTotal > 0) {
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uint256 marketingAmount = amount * _taxSharesMarketing / _taxShareTotal;
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uint256 developmentAmount = amount * _taxSharesDevelopment / _taxShareTotal;
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if ( marketingAmount > 0 ) { _walletMarketing.transfer(marketingAmount); }
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if ( developmentAmount > 0 ) { _walletDevelopment.transfer(developmentAmount); }
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}
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}
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function manualTaxSwapAndSend(uint8 swapTokenPercent, bool sendEth) external onlyOwner lockTaxSwap {
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require(swapTokenPercent <= 100, "Cannot swap more than 100%");
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uint256 tokensToSwap = balanceOf(address(this)) * swapTokenPercent / 100;
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if (tokensToSwap > 10 ** _decimals) {
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_swapTaxTokensForEth(tokensToSwap);
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}
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if (sendEth) {
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uint256 ethBalance = address(this).balance;
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require(ethBalance > 0, "No ETH");
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_distributeTaxEth(address(this).balance);
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}
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}
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function burn(uint256 amount) external {
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uint256 _tokensAvailable = balanceOf(msg.sender);
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require(amount <= _tokensAvailable, "balance too low");
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_burnTokens(msg.sender, amount);
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emit TokensBurned(msg.sender, amount);
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}
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function airdrop(address[] calldata addresses, uint256[] calldata tokenAmounts) external onlyOwner {
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require(addresses.length <= 250,"Wallet count over 250 (gas risk)");
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require(addresses.length == tokenAmounts.length,"Address and token amount list mismach");
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uint256 airdropTotal = 0;
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for(uint i=0; i < addresses.length; i++){
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airdropTotal += (tokenAmounts[i] * 10**_decimals);
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}
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require(_balances[msg.sender] >= airdropTotal, "Token balance lower than airdrop total");
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for(uint i=0; i < addresses.length; i++) {
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_balances[msg.sender] -= (tokenAmounts[i] * 10**_decimals);
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_balances[addresses[i]] += (tokenAmounts[i] * 10**_decimals);
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emit Transfer(msg.sender, addresses[i], (tokenAmounts[i] * 10**_decimals) );
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}
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emit TokensAirdropped(addresses.length, airdropTotal);
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}
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} |
