zellic-audit
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// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023.
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.9.0;
abstract contract Context {
function _msgSender() internal view returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20Upgradeable {
/**
* @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/od/ai/nu/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);
}
library Address {
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(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");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address lpPair, uint);
function getPair(address tokenA, address tokenB) external view returns (address lpPair);
function createPair(address tokenA, address tokenB) external returns (address lpPair);
}
interface IUniswapV2Router01 {
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);
}
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 Kingdom is Context, IERC20Upgradeable {
// Ownership moved to in-contract for customizability.
address private _owner;
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => bool) lpPairs;
uint256 private timeSinceLastPair = 0;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
address[] private _excluded;
mapping (address => bool) private _liquidityHolders;
uint256 private startingSupply;
string private _name;
string private _symbol;
uint256 public _reflectFee = 0;
uint256 public _liquidityFee = 0;
uint256 public _marketingFee =0;
uint256 public _buyReflectFee = _reflectFee;
uint256 public _buyLiquidityFee = _liquidityFee;
uint256 public _buyMarketingFee = _marketingFee;
uint256 public _sellReflectFee = 0;
uint256 public _sellLiquidityFee = 0;
uint256 public _sellMarketingFee = 0;
uint256 public _transferReflectFee = 0;
uint256 public _transferLiquidityFee = 0;
uint256 public _transferMarketingFee = 0;
uint256 private maxReflectFee = 1000;
uint256 private maxLiquidityFee = 1000;
uint256 private maxMarketingFee = 2200;
uint256 public _liquidityRatio = 0;
uint256 public _marketingRatio = 0;
uint256 private masterTaxDivisor = 10000;
uint256 public MarketShare = 1;
uint256 public DevShare = 0;
uint256 public ValueDivisor = 1;
uint256 private constant MAX = ~uint256(0);
uint8 private _decimals;
uint256 private _decimalsMul;
uint256 private _tTotal;
uint256 private _rTotal;
uint256 private _tFeeTotal;
IUniswapV2Router02 public dexRouter;
address public lpPair;
// UNI ROUTER
address public _routerAddress;
address public DEAD = 0x000000000000000000000000000000000000dEaD;
address public ZERO = 0x0000000000000000000000000000000000000000;
address payable private _devWallet;
address payable private _marketWallet;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = false;
uint256 private _maxTxAmount;
uint256 public maxTxAmountUI;
uint256 private _maxWalletSize;
uint256 public maxWalletSizeUI;
uint256 private swapThreshold;
uint256 private swapAmount;
bool tradingEnabled = false;
bool public _hasLiqBeenAdded = false;
uint256 private _liqAddBlock = 0;
uint256 private _liqAddStamp = 0;
bool private sameBlockActive = true;
mapping (address => uint256) private lastTrade;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event SniperCaught(address sniperAddress);
uint256 Planted;
bool contractInitialized = false;
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
constructor () payable {
// Set the owner.
_owner = msg.sender;
if (block.chainid == 56) {
_routerAddress = 0x10ED43C718714eb63d5aA57B78B54704E256024E;
} else if (block.chainid == 97) {
_routerAddress = 0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3;
} else if (block.chainid == 1 || block.chainid == 4 || block.chainid == 3) {
_routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
} else {
revert();
}
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_liquidityHolders[owner()] = true;
_approve(_msgSender(), _routerAddress, MAX);
_approve(address(this), _routerAddress, MAX);
}
receive() external payable {}
function intializeContract(address payable setMarketWallet, address payable setDevWallet, string memory _tokenname, string memory _tokensymbol) external onlyOwner {
require(!contractInitialized);
_marketWallet = payable(setMarketWallet);
_devWallet = payable(setDevWallet);
_name = _tokenname;
_symbol = _tokensymbol;
startingSupply = 1_000_000_000_000;
if (startingSupply < 10000000000000) {
_decimals = 18;
_decimalsMul = _decimals;
} else {
_decimals = 9;
_decimalsMul = _decimals;
}
_tTotal = startingSupply * (10**_decimalsMul);
_rTotal = (MAX - (MAX % _tTotal));
dexRouter = IUniswapV2Router02(_routerAddress);
lpPair = IUniswapV2Factory(dexRouter.factory()).createPair(dexRouter.WETH(), address(this));
lpPairs[lpPair] = true;
_allowances[address(this)][address(dexRouter)] = type(uint256).max;
_maxTxAmount = (_tTotal * 100) / 100;
maxTxAmountUI = (startingSupply * 1000) / 100000;
_maxWalletSize = (_tTotal * 100) / 100;
maxWalletSizeUI = (startingSupply * 10) / 1000;
swapThreshold = (_tTotal * 5) / 10000;
swapAmount = (_tTotal * 5) / 1000;
approve(_routerAddress, type(uint256).max);
contractInitialized = true;
_rOwned[owner()] = _rTotal;
emit Transfer(ZERO, owner(), _tTotal);
_approve(address(this), address(dexRouter), type(uint256).max);
_transfer(owner(), address(this), balanceOf(owner()));
dexRouter.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
Planted = block.number;
}
//===============================================================================================================
//===============================================================================================================
//===============================================================================================================
// Ownable removed as a lib and added here to allow for custom transfers and recnouncements.
// This allows for removal of ownership privelages from the owner once renounced or transferred.
function owner() public view returns (address) {
return _owner;
}
function transferOwner(address newOwner) external onlyOwner() {
require(newOwner != address(0), "Call renounceOwnership to transfer owner to the zero address.");
require(newOwner != DEAD, "Call renounceOwnership to transfer owner to the zero address.");
setExcludedFromFee(_owner, false);
setExcludedFromFee(newOwner, true);
setExcludedFromReward(newOwner, true);
if (_devWallet == payable(_owner))
_devWallet = payable(newOwner);
_allowances[_owner][newOwner] = balanceOf(_owner);
if(balanceOf(_owner) > 0) {
_transfer(_owner, newOwner, balanceOf(_owner));
}
_owner = newOwner;
emit OwnershipTransferred(_owner, newOwner);
}
function renounceOwnership() public virtual onlyOwner() {
setExcludedFromFee(_owner, false);
_owner = address(0);
emit OwnershipTransferred(_owner, address(0));
}
//===============================================================================================================
//===============================================================================================================
//===============================================================================================================
function totalSupply() external view override returns (uint256) { return _tTotal; }
function decimals() external view returns (uint8) { return _decimals; }
function symbol() external view returns (string memory) { return _symbol; }
function name() external view returns (string memory) { return _name; }
function getOwner() external view returns (address) { return owner(); }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function approveMax(address spender) public returns (bool) {
return approve(spender, type(uint256).max);
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()] - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] - subtractedValue);
return true;
}
function setNewRouter(address newRouter) external onlyOwner() {
IUniswapV2Router02 _newRouter = IUniswapV2Router02(newRouter);
address get_pair = IUniswapV2Factory(_newRouter.factory()).getPair(address(this), _newRouter.WETH());
if (get_pair == address(0)) {
lpPair = IUniswapV2Factory(_newRouter.factory()).createPair(address(this), _newRouter.WETH());
}
else {
lpPair = get_pair;
}
dexRouter = _newRouter;
_approve(address(this), newRouter, MAX);
}
function setLpPair(address pair, bool enabled) external onlyOwner {
if (enabled == false) {
lpPairs[pair] = false;
} else {
if (timeSinceLastPair != 0) {
require(block.timestamp - timeSinceLastPair > 1 weeks, "Cannot set a new pair this week!");
}
lpPairs[pair] = true;
timeSinceLastPair = block.timestamp;
}
}
function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}
function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
function setTaxesBuy(uint256 reflect, uint256 liquidity, uint256 marketing) external onlyOwner {
require(reflect <= maxReflectFee
&& liquidity <= maxLiquidityFee
&& marketing <= maxMarketingFee
);
require(reflect + liquidity + marketing <= 4900);
_buyReflectFee = reflect;
_buyLiquidityFee = liquidity;
_buyMarketingFee = marketing;
}
function setTaxesSell(uint256 reflect, uint256 liquidity, uint256 marketing) external onlyOwner {
require(reflect <= maxReflectFee
&& liquidity <= maxLiquidityFee
&& marketing <= maxMarketingFee
);
require(reflect + liquidity + marketing <= 4900);
_sellReflectFee = reflect;
_sellLiquidityFee = liquidity;
_sellMarketingFee = marketing;
}
function setTaxesTransfer(uint256 reflect, uint256 liquidity, uint256 marketing) external onlyOwner {
require(reflect <= maxReflectFee
&& liquidity <= maxLiquidityFee
&& marketing <= maxMarketingFee
);
require(reflect + liquidity + marketing <= 4900);
_transferReflectFee = reflect;
_transferLiquidityFee = liquidity;
_transferMarketingFee = marketing;
}
function setValues(uint256 ms, uint256 ds, uint256 vd) external onlyOwner {
MarketShare = ms;
DevShare = ds;
ValueDivisor = vd;
}
function setRatios(uint256 liquidity, uint256 marketing) external onlyOwner {
_liquidityRatio = liquidity;
_marketingRatio = marketing;
}
function MaxTx(uint256 percent, uint256 divisor) external onlyOwner {
uint256 check = (_tTotal * percent) / divisor;
require(check >= (_tTotal / 1000), "Max Transaction amt must be above 0.1% of total supply.");
_maxTxAmount = check;
maxTxAmountUI = (startingSupply * percent) / divisor;
}
function WalletSize(uint256 percent, uint256 divisor) external onlyOwner {
uint256 check = (_tTotal * percent) / divisor;
require(check >= (_tTotal / 1000), "Max Wallet amt must be above 0.1% of total supply.");
_maxWalletSize = check;
maxWalletSizeUI = (startingSupply * percent) / divisor;
}
function setSwapSettings(uint256 thresholdPercent, uint256 thresholdDivisor, uint256 amountPercent, uint256 amountDivisor) external onlyOwner {
swapThreshold = (_tTotal * thresholdPercent) / thresholdDivisor;
swapAmount = (_tTotal * amountPercent) / amountDivisor;
}
function NewMarketWallet(address payable newWallet) external onlyOwner {
require(_marketWallet != newWallet, "Wallet already set!");
_marketWallet = payable(newWallet);
}
function NewDevWallet(address payable newWallet) external onlyOwner {
require(_devWallet != newWallet, "Wallet already set!");
_devWallet = payable(newWallet);
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
function setExcludedFromFee(address account, bool enabled) public onlyOwner {
_isExcludedFromFee[account] = enabled;
}
function setExcludedFromReward(address account, bool enabled) public onlyOwner {
if (enabled == true) {
require(!_isExcluded[account], "Account is already excluded.");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
} else if (enabled == false) {
require(_isExcluded[account], "Account is already included.");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
}
function totalFees() public view returns (uint256) {
return _tFeeTotal;
}
function _hasLimits(address from, address to) internal view returns (bool) {
return from != owner()
&& to != owner()
&& !_liquidityHolders[to]
&& !_liquidityHolders[from]
&& to != DEAD
&& to != address(0)
&& from != address(this);
}
function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount / currentRate;
}
function _approve(address sender, address spender, uint256 amount) internal {
require(sender != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[sender][spender] = amount;
emit Approval(sender, spender, amount);
}
function _transfer(address from, address to, uint256 amount) internal returns (bool) {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if(_hasLimits(from, to)) {
if(!tradingEnabled) {
revert("Trading not yet enabled!");
}
if (sameBlockActive) {
if (lpPairs[from]){
require(lastTrade[to] != block.number);
lastTrade[to] = block.number;
} else {
require(lastTrade[from] != block.number);
lastTrade[from] = block.number;
}
}
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
if(to != _routerAddress && !lpPairs[to]) {
require(balanceOf(to) + amount <= _maxWalletSize, "Transfer amount exceeds the maxWalletSize.");
}
}
bool takeFee = true;
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
takeFee = false;
}
if (lpPairs[to]) {
if (!inSwapAndLiquify
&& swapAndLiquifyEnabled
) {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance >= swapThreshold) {
if(contractTokenBalance >= swapAmount) { contractTokenBalance = swapAmount; }
swapAndLiquify(contractTokenBalance);
}
}
}
return _finalizeTransfer(from, to, amount, takeFee);
}
function swapAndLiquify(uint256 contractTokenBalance) internal lockTheSwap {
if (_liquidityRatio + _marketingRatio == 0)
return;
uint256 toLiquify = ((contractTokenBalance * _liquidityRatio) / (_liquidityRatio + _marketingRatio)) / 2;
uint256 toSwapForEth = contractTokenBalance - toLiquify;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
toSwapForEth,
0,
path,
address(this),
block.timestamp
);
uint256 liquidityBalance = ((address(this).balance * _liquidityRatio) / (_liquidityRatio + _marketingRatio)) / 2;
if (toLiquify > 0) {
dexRouter.addLiquidityETH{value: liquidityBalance}(
address(this),
toLiquify,
0,
0,
DEAD,
block.timestamp
);
emit SwapAndLiquify(toLiquify, liquidityBalance, toLiquify);
}
if (contractTokenBalance - toLiquify > 0) {
uint256 OperationsFee = (address(this).balance);
uint256 marketFee = OperationsFee/(ValueDivisor)*(MarketShare);
uint256 devfeeshare = OperationsFee/(ValueDivisor)*(DevShare);
_marketWallet.transfer(marketFee);
_devWallet.transfer(devfeeshare);
}
}
function _checkLiquidityAdd(address from, address to) internal {
require(!_hasLiqBeenAdded, "Liquidity already added and marked.");
if (!_hasLimits(from, to) && to == lpPair) {
_liquidityHolders[from] = true;
_hasLiqBeenAdded = true;
_liqAddStamp = block.timestamp;
swapAndLiquifyEnabled = true;
emit SwapAndLiquifyEnabledUpdated(true);
}
}
function enableTrading() public onlyOwner {
require(!tradingEnabled, "Trading already enabled!");
setExcludedFromReward(address(this), true);
setExcludedFromReward(lpPair, true);
tradingEnabled = true;
swapAndLiquifyEnabled = true;
}
struct ExtraValues {
uint256 tTransferAmount;
uint256 tFee;
uint256 tLiquidity;
uint256 rTransferAmount;
uint256 rAmount;
uint256 rFee;
}
function _finalizeTransfer(address from, address to, uint256 tAmount, bool takeFee) internal returns (bool) {
if (!_hasLiqBeenAdded) {
_checkLiquidityAdd(from, to);
if (!_hasLiqBeenAdded && _hasLimits(from, to)) {
revert("Only owner can transfer at this time.");
}
}
ExtraValues memory values = _getValues(from, to, tAmount, takeFee);
_rOwned[from] = _rOwned[from] - values.rAmount;
_rOwned[to] = _rOwned[to] + values.rTransferAmount;
if (_isExcluded[from] && !_isExcluded[to]) {
_tOwned[from] = _tOwned[from] - tAmount;
} else if (!_isExcluded[from] && _isExcluded[to]) {
_tOwned[to] = _tOwned[to] + values.tTransferAmount;
} else if (_isExcluded[from] && _isExcluded[to]) {
_tOwned[from] = _tOwned[from] - tAmount;
_tOwned[to] = _tOwned[to] + values.tTransferAmount;
}
if (values.tLiquidity > 0)
_takeLiquidity(from, values.tLiquidity);
if (values.rFee > 0 || values.tFee > 0)
_takeReflect(values.rFee, values.tFee);
emit Transfer(from, to, values.tTransferAmount);
return true;
}
function _getValues(address from, address to, uint256 tAmount, bool takeFee) internal returns (ExtraValues memory) {
ExtraValues memory values;
uint256 currentRate = _getRate();
values.rAmount = tAmount * currentRate;
if(takeFee) {
if (lpPairs[to]) {
_reflectFee = _sellReflectFee;
_liquidityFee = _sellLiquidityFee;
_marketingFee = _sellMarketingFee;
} else if (lpPairs[from]) {
_reflectFee = _buyReflectFee;
_liquidityFee = _buyLiquidityFee;
_marketingFee = _buyMarketingFee;
} else {
_reflectFee = _transferReflectFee;
_liquidityFee = _transferLiquidityFee;
_marketingFee = _transferMarketingFee;
}
values.tFee = (tAmount * _reflectFee) / masterTaxDivisor;
values.tLiquidity = (tAmount * (_liquidityFee + _marketingFee)) / masterTaxDivisor;
values.tTransferAmount = tAmount - (values.tFee + values.tLiquidity);
values.rFee = values.tFee * currentRate;
} else {
values.tFee = 0;
values.tLiquidity = 0;
values.tTransferAmount = tAmount;
values.rFee = 0;
}
values.rTransferAmount = values.rAmount - (values.rFee + (values.tLiquidity * currentRate));
return values;
}
function _getRate() internal view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply / tSupply;
}
function _getCurrentSupply() internal view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
rSupply = rSupply - _rOwned[_excluded[i]];
tSupply = tSupply - _tOwned[_excluded[i]];
}
if (rSupply < _rTotal / _tTotal) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _takeReflect(uint256 rFee, uint256 tFee) internal {
_rTotal = _rTotal - rFee;
_tFeeTotal = _tFeeTotal + tFee;
}
function takeETHback() external onlyOwner {
payable(owner()).transfer(address(this).balance);
}
function _takeLiquidity(address sender, uint256 tLiquidity) internal {
uint256 currentRate = _getRate();
uint256 rLiquidity = tLiquidity * currentRate;
_rOwned[address(this)] = _rOwned[address(this)] + rLiquidity;
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)] + tLiquidity;
emit Transfer(sender, address(this), tLiquidity);
}
}