文件 1 的 1:DRIP.sol
pragma solidity ^0.8.4;
pragma experimental ABIEncoderV2;
interface IBEP20 {
function totalSupply() external view returns (uint256);
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);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
contract Ownable is Context {
address payable private _owner;
address payable private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor (address ownerAddress) {
_owner = payable(ownerAddress);
emit OwnershipTransferred(address(0), _owner);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = payable(address(0));
}
function transferOwnership(address payable newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = payable(address(0));
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
function unlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(block.timestamp > _lockTime , "Contract is locked until defined days");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
_previousOwner = payable(address(0));
}
}
interface IPancakeFactory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IPancakePair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IPancakeRouter01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
interface IPancakeRouter02 is IPancakeRouter01 {
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;
}
library Utils {
using SafeMath for uint256;
function swapTokensForEth(
address routerAddress,
uint256 tokenAmount
) internal {
IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = pancakeRouter.WETH();
pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function swapETHForTokens(
address routerAddress,
address recipient,
uint256 ethAmount
) internal {
IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);
address[] memory path = new address[](2);
path[0] = pancakeRouter.WETH();
path[1] = address(this);
pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmount}(
0,
path,
address(recipient),
block.timestamp + 360
);
}
function addLiquidity(
address routerAddress,
address owner,
uint256 tokenAmount,
uint256 ethAmount
) internal {
IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);
pancakeRouter.addLiquidityETH{value : ethAmount}(
address(this),
tokenAmount,
0,
0,
owner,
block.timestamp + 360
);
}
}
contract DRIP is Context, IBEP20, Ownable{
using SafeMath for uint256;
using Address for address;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcluded;
mapping(address => bool) private _isExcludedFromMaxTx;
address[] private _excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 99000 * 10**6 * 1e9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private _name = "Do Right and Invest Properly";
string private _symbol = "DRIP";
uint8 private _decimals = 9;
IPancakeRouter02 public pancakeRouter;
address public immutable pancakePair;
address payable public buyBackWallet;
address payable public marketWallet;
uint256 public _taxFee = 0;
uint256 private _previousTaxFee = _taxFee;
uint256 public _liquidityFee = 10;
uint256 private _previousLiquidityFee = _liquidityFee;
uint256 public _buyBackFee = 35;
uint256 private _previousCharityFee = _buyBackFee;
uint256 public _marketFee = 35;
uint256 private _previousMarketFee = _marketFee;
uint256 public _maxTxAmount = 3000000 * 10**6 * 10**9;
uint256 public minTokenNumberToSell = 200000 * 10**6 * 10**9;
bool public swapAndLiquifyEnabled = false;
bool public reflectionFeesdiabled = false;
bool inSwapAndLiquify = false;
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event ClaimBNBSuccessfully(
address recipient,
uint256 ethReceived,
uint256 nextAvailableClaimDate
);
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor (
address payable ownerAddress,
address payable _buyBackAddress,
address payable _marketWallet
) Ownable(ownerAddress) {
_rOwned[owner()] = _rTotal;
buyBackWallet = _buyBackAddress;
marketWallet = _marketWallet;
IPancakeRouter02 _pancakeRouter = IPancakeRouter02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
pancakePair = IPancakeFactory(_pancakeRouter.factory())
.createPair(address(this), _pancakeRouter.WETH());
pancakeRouter = _pancakeRouter;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromMaxTx[owner()] = true;
_isExcludedFromMaxTx[address(this)] = true;
emit Transfer(address(0), owner(), _tTotal);
}
receive() external payable {}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
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 allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "BEP20: decreased allowance below zero"));
return true;
}
function deliver(uint256 tAmount) public {
address sender = _msgSender();
require(!_isExcluded[sender], "Excluded addresses cannot call this function");
uint256 rAmount = tAmount.mul(_getRate());
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rTotal = _rTotal.sub(rAmount);
_tFeeTotal = _tFeeTotal.add(tAmount);
}
function getContractBalance() public view returns(uint256) {
return address(this).balance;
}
function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}
function isExcludedFromFee(address account) public view returns (bool) {
return _isExcludedFromFee[account];
}
function totalFees() public view returns (uint256) {
return _tFeeTotal;
}
function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns (uint256) {
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferFee) {
uint256 rAmount = tAmount.mul(_getRate());
return rAmount;
} else {
uint256 rAmount = tAmount.mul(_getRate());
uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(_getRate()));
return rTransferAmount;
}
}
function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function excludeFromReward(address account) public onlyOwner {
require(!_isExcluded[account], "Account is already excluded");
if (_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner {
require(_isExcluded[account], "Account is already excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_rOwned[account] = _tOwned[account].mul(_getRate());
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function setMaxTxAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
function setMinTokenNumberToSell(uint256 _amount) public onlyOwner {
minTokenNumberToSell = _amount;
}
function setExcludeFromMaxTx(address _address, bool value) public onlyOwner {
_isExcludedFromMaxTx[_address] = value;
}
function setFeePercents(uint256 taxFee, uint256 liquidityFee, uint256 buyBackFee, uint256 marketFee) external onlyOwner {
_taxFee = taxFee;
_liquidityFee = liquidityFee;
_buyBackFee = buyBackFee;
_marketFee = marketFee;
}
function setSwapAndLiquifyEnabled(bool _state) public onlyOwner {
swapAndLiquifyEnabled = _state;
emit SwapAndLiquifyEnabledUpdated(_state);
}
function setReflectionFees(bool _state) external onlyOwner {
reflectionFeesdiabled = _state;
}
function setBuyBackAddress(address payable _buyBackAddress) external onlyOwner {
buyBackWallet = _buyBackAddress;
}
function setMarketAddress(address payable _marketAddress) external onlyOwner {
marketWallet = _marketAddress;
}
function setPancakeRouter(IPancakeRouter02 _pancakeRouter) external onlyOwner {
pancakeRouter = _pancakeRouter;
}
function totalFeePerTx(uint256 tAmount) internal view returns(uint256) {
uint256 percentage = tAmount.mul(_taxFee.add(_liquidityFee).add(_buyBackFee).add(_marketFee)).div(1e3);
return percentage;
}
function _reflectFee(uint256 tAmount) private {
uint256 tFee = tAmount.mul(_taxFee).div(1e3);
uint256 rFee = tFee.mul(_getRate());
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private 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.sub(_rOwned[_excluded[i]]);
tSupply = tSupply.sub(_tOwned[_excluded[i]]);
}
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _takeAllFee(uint256 tAmount, uint256 currentRate) internal {
uint256 tFee = tAmount.mul(_liquidityFee.add(_buyBackFee).add(_marketFee)).div(1e3);
uint256 rFee = tFee.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rFee);
if (_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tFee);
emit Transfer(_msgSender(), address(this), tFee);
}
function removeAllFee() private {
_previousTaxFee = _taxFee;
_previousLiquidityFee = _liquidityFee;
_previousCharityFee = _buyBackFee;
_previousMarketFee = _marketFee;
_taxFee = 0;
_liquidityFee = 0;
_buyBackFee = 0;
_marketFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_liquidityFee = _previousLiquidityFee;
_buyBackFee = _previousCharityFee;
_marketFee = _previousMarketFee;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "BEP20: transfer from the zero address");
require(to != address(0), "BEP20: transfer to the zero address");
require(amount > 0, "BEP20: Transfer amount must be greater than zero");
if(!_isExcludedFromMaxTx[from] &&
!_isExcludedFromMaxTx[to]
){
require(amount <= _maxTxAmount,"BEP20: Amount exceed max limit");
}
swapAndLiquify(from, to);
bool takeFee = true;
if (_isExcludedFromFee[from] || _isExcludedFromFee[to] || reflectionFeesdiabled) {
takeFee = false;
}
_tokenTransfer(from, to, amount, takeFee);
}
function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private {
if (!takeFee)
removeAllFee();
if (_isExcluded[sender] && !_isExcluded[recipient]) {
_transferFromExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && _isExcluded[recipient]) {
_transferToExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
_transferStandard(sender, recipient, amount);
} else if (_isExcluded[sender] && _isExcluded[recipient]) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}
if (!takeFee)
restoreAllFee();
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeAllFee(tAmount, currentRate);
_reflectFee(tAmount);
emit Transfer(sender, recipient, tTransferAmount);
}
function swapAndLiquify(address from, address to) private {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance >= _maxTxAmount) {
contractTokenBalance = _maxTxAmount;
}
bool shouldSell = contractTokenBalance >= minTokenNumberToSell;
if (
!inSwapAndLiquify &&
shouldSell &&
from != pancakePair &&
swapAndLiquifyEnabled &&
!(from == address(this) && to == address(pancakePair))
) {
contractTokenBalance = minTokenNumberToSell;
_approve(address(this), address(pancakeRouter), contractTokenBalance);
uint256 totalPercent = _liquidityFee.add(_buyBackFee).add(_marketFee);
uint256 lpPercent = _liquidityFee.mul(1e4).div(totalPercent).div(2);
uint256 bbPercent = _buyBackFee.mul(1e4).div(totalPercent);
uint256 mwPercent = _marketFee.mul(1e4).div(totalPercent);
uint256 otherPiece = contractTokenBalance.mul(lpPercent).div(1e4);
uint256 tokenAmountToBeSwapped = contractTokenBalance.sub(otherPiece);
Utils.swapTokensForEth(address(pancakeRouter), tokenAmountToBeSwapped);
uint256 deltaBalance = getContractBalance();
totalPercent = lpPercent.add(bbPercent).add(mwPercent);
uint256 bnbToBeAddedToLiquidity = deltaBalance.mul(lpPercent).div(totalPercent);
Utils.addLiquidity(address(pancakeRouter), owner(), otherPiece, bnbToBeAddedToLiquidity);
buyBackWallet.transfer(deltaBalance.mul(bbPercent).div(totalPercent));
marketWallet.transfer(getContractBalance());
emit SwapAndLiquify(tokenAmountToBeSwapped, deltaBalance, otherPiece);
}
}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
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");
(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");
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}