文件 1 的 1:LiquidityGeneratorToken.sol
pragma solidity 0.8.16;
interface IERC20 {
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) {
return msg.sender;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
library SafeMath {
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function WETC() external pure returns (address);
function WHT() external pure returns (address);
function WROSE() external pure returns (address);
function WAVAX() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function addLiquidityAVAX(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function addLiquidityETC(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function addLiquidityROSE(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function swapExactTokensForETCSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForAVAXSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForROSESupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
interface IUniswapV2Factory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
abstract contract BaseToken {
event TokenCreated(
address indexed owner,
address indexed token,
string tokenType,
uint256 version
);
}
contract LiquidityGeneratorToken is IERC20, Ownable, BaseToken {
using SafeMath for uint256;
uint256 public constant VERSION = 4;
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;
address[] private excluded;
uint256 private constant MAX = ~uint256(0);
uint256 private immutable tTotal;
uint256 private rTotal;
uint256 private tFeeTotal;
string private _name;
string private _symbol;
uint8 private immutable _decimals;
uint256 public taxFee;
uint256 private previousTaxFee;
uint256 public liquidityFee;
uint256 private previousLiquidityFee;
uint256 public teamFee;
uint256 private previousTeamFee;
IUniswapV2Router02 public uniswapV2Router;
address public immutable uniswapV2Pair;
address public teamAddress;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled;
uint256 private numTokensSellToAddToLiquidity;
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event UpdatedTokenSellToLiquify(uint256 amount, uint256 previousAmount);
event UpdatedTaxFeePercent(uint256 value, uint256 previousValue);
event UpdatedLiquidityFeePercent(uint256 value, uint256 previousValue);
event UpdatedTeamFeePercent(uint256 value, uint256 previousValue);
event UpdatedTeamAddress(address value, address previousValue);
event Reflect(address sender, uint256 amount);
event SwapTokensForEthFailed(uint256 amount);
event AddLiquidityFailed(uint256 ethAmount);
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor(
string memory name_,
string memory symbol_,
uint8 decimals_,
uint256 totalSupply_,
address router_,
address teamAddress_,
uint16 taxfeeTax_,
uint16 liquidityFeeTax_,
uint16 teamFeeTax_,
address feeReceiver
) payable {
require(
teamAddress_ != address(0),
"teamAddress_ should not be the zero address"
);
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
tTotal = totalSupply_;
rTotal = (MAX - (MAX % tTotal));
taxFee = taxfeeTax_;
previousTaxFee = taxFee;
liquidityFee = liquidityFeeTax_;
previousLiquidityFee = liquidityFee;
teamAddress = teamAddress_;
teamFee = teamFeeTax_;
previousTeamFee = teamFee;
validateTaxes();
numTokensSellToAddToLiquidity = (totalSupply_) / 10000;
swapAndLiquifyEnabled = true;
rOwned[owner()] = rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router_);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), getNativeCurrency());
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
emit Transfer(address(0), owner(), tTotal);
emit TokenCreated(
owner(),
address(this),
"liquidityGenerator",
VERSION
);
if (feeReceiver == address(0x0)) return;
payable(feeReceiver).transfer(address(this).balance);
}
function getNativeCurrency() internal view returns (address) {
if (block.chainid == 61) {
return uniswapV2Router.WETC();
} else if (block.chainid == 128) {
return uniswapV2Router.WHT();
} else if (block.chainid == 42262) {
return uniswapV2Router.WROSE();
} else if (block.chainid == 43114 || block.chainid == 43113) {
return uniswapV2Router.WAVAX();
} else {
return uniswapV2Router.WETH();
}
}
function name() external view returns (string memory) {
return _name;
}
function symbol() external view returns (string memory) {
return _symbol;
}
function decimals() external view returns (uint8) {
return _decimals;
}
function totalSupply() external 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
) external override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(
address account,
address spender
) external view override returns (uint256) {
return _allowances[account][spender];
}
function approve(
address spender,
uint256 amount
) external override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) external override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) external virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) external virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender].sub(
subtractedValue,
"ERC20: decreased allowance below zero"
)
);
return true;
}
function isExcludedFromReward(
address account
) external view returns (bool) {
return isExcluded[account];
}
function totalFees() external view returns (uint256) {
return tFeeTotal;
}
function deliver(uint256 tAmount) external {
address sender = _msgSender();
require(
!isExcluded[sender],
"Excluded addresses cannot call this function"
);
(uint256 rAmount, , , , , , ) = _getValues(tAmount);
rOwned[sender] = rOwned[sender] - rAmount;
rTotal = rTotal - rAmount;
tFeeTotal = tFeeTotal + tAmount;
}
function reflectionFromToken(
uint256 tAmount,
bool deductTransferFee
) external view returns (uint256) {
require(tAmount <= tTotal, "Amount must be less than supply");
if (!deductTransferFee) {
(uint256 rAmount, , , , , , ) = _getValues(tAmount);
return rAmount;
} else {
(, uint256 rTransferAmount, , , , , ) = _getValues(tAmount);
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 / currentRate;
}
function excludeFromReward(address account) external 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];
tOwned[account] = 0;
isExcluded[account] = false;
excluded.pop();
break;
}
}
}
function _transferBothExcluded(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tTeam
) = _getValues(tAmount);
tOwned[sender] = tOwned[sender] - tAmount;
rOwned[sender] = rOwned[sender] - rAmount;
tOwned[recipient] = tOwned[recipient] + tTransferAmount;
rOwned[recipient] = rOwned[recipient] + rTransferAmount;
_takeLiquidity(sender, tLiquidity);
_takeTeamFee(sender, tTeam);
_reflectFee(sender, rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function excludeFromFee(address account) external onlyOwner {
isExcludedFromFee[account] = true;
}
function includeInFee(address account) external onlyOwner {
isExcludedFromFee[account] = false;
}
function setTaxFeePercent(uint256 taxFeeBps) external onlyOwner {
emit UpdatedTaxFeePercent(taxFeeBps, taxFee);
taxFee = taxFeeBps;
validateTaxes();
}
function setLiquidityFeePercent(
uint256 liquidityFeeBps
) external onlyOwner {
emit UpdatedLiquidityFeePercent(liquidityFeeBps, liquidityFee);
liquidityFee = liquidityFeeBps;
validateTaxes();
}
function setTeamFeePercent(uint256 teamFeeBps) external onlyOwner {
emit UpdatedTeamFeePercent(teamFeeBps, teamFee);
teamFee = teamFeeBps;
validateTaxes();
}
function setTeamAddress(address wallet) external onlyOwner {
require(wallet != address(0x0));
emit UpdatedTeamAddress(wallet, teamAddress);
teamAddress = wallet;
}
function validateTaxes() internal view {
require(
taxFee + liquidityFee + teamFee <= 10 ** 4 / 5,
"Total fee is over 20%"
);
}
function setSwapAndLiquifyEnabled(bool enabled) external onlyOwner {
swapAndLiquifyEnabled = enabled;
emit SwapAndLiquifyEnabledUpdated(enabled);
}
function setTokenSellToLiquify(uint256 amount) external onlyOwner {
require(
amount > tTotal / 10 ** 5 && amount <= tTotal / 10 ** 3,
"Amount must be between 0.001% - 0.1% of total supply"
);
emit UpdatedTokenSellToLiquify(amount, numTokensSellToAddToLiquidity);
numTokensSellToAddToLiquidity = amount;
}
receive() external payable {}
function _getValues(
uint256 tAmount
)
private
view
returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256)
{
(
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tTeam
) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(
tAmount,
tFee,
tLiquidity,
tTeam,
_getRate()
);
return (
rAmount,
rTransferAmount,
rFee,
tTransferAmount,
tFee,
tLiquidity,
tTeam
);
}
function _getTValues(
uint256 tAmount
) private view returns (uint256, uint256, uint256, uint256) {
uint256 tFee = calculateTaxFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tTeamFee = calculateTeamFee(tAmount);
uint256 tTransferAmount = tAmount - tFee - tLiquidity - tTeamFee;
return (tTransferAmount, tFee, tLiquidity, tTeamFee);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tTeam,
uint256 currentRate
) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount * currentRate;
uint256 rFee = tFee * currentRate;
uint256 rLiquidity = tLiquidity * currentRate;
uint256 rTeam = tTeam * currentRate;
uint256 rTransferAmount = rAmount - rFee - rLiquidity - rTeam;
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply / 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 - rOwned[excluded[i]];
tSupply = tSupply - tOwned[excluded[i]];
}
if (rSupply < rTotal / tTotal) return (rTotal, tTotal);
return (rSupply, tSupply);
}
function _takeLiquidity(address sender, uint256 tLiquidity) private {
if (tLiquidity == 0) return;
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);
}
function _takeTeamFee(address sender, uint256 tTeam) private {
if (tTeam == 0) return;
uint256 currentRate = _getRate();
uint256 rTeam = tTeam * currentRate;
rOwned[teamAddress] = rOwned[teamAddress] + rTeam;
if (isExcluded[teamAddress])
tOwned[teamAddress] = tOwned[teamAddress] + tTeam;
emit Transfer(sender, teamAddress, tTeam);
}
function _reflectFee(address sender, uint256 rFee, uint256 tFee) private {
if (tFee == 0) return;
rTotal = rTotal - rFee;
tFeeTotal = tFeeTotal + tFee;
emit Reflect(sender, tFee);
}
function calculateTaxFee(uint256 amount) private view returns (uint256) {
return (amount * taxFee) / (10 ** 4);
}
function calculateLiquidityFee(
uint256 amount
) private view returns (uint256) {
return (amount * liquidityFee) / (10 ** 4);
}
function calculateTeamFee(uint256 amount) private view returns (uint256) {
return (amount * teamFee) / (10 ** 4);
}
function removeAllFee() private {
previousTaxFee = taxFee;
previousLiquidityFee = liquidityFee;
previousTeamFee = teamFee;
taxFee = 0;
liquidityFee = 0;
teamFee = 0;
}
function restoreAllFee() private {
taxFee = previousTaxFee;
liquidityFee = previousLiquidityFee;
teamFee = previousTeamFee;
}
function getIsExcludedFromFee(address account) public view returns (bool) {
return isExcludedFromFee[account];
}
function _approve(
address account,
address spender,
uint256 amount
) private {
require(account != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[account][spender] = amount;
emit Approval(account, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {
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");
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >=
numTokensSellToAddToLiquidity;
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
from != uniswapV2Pair &&
swapAndLiquifyEnabled
) {
contractTokenBalance = numTokensSellToAddToLiquidity;
swapAndLiquify(contractTokenBalance);
}
bool takeFee = !isExcludedFromFee[from] && !isExcludedFromFee[to];
_tokenTransfer(from, to, amount, takeFee);
}
function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
uint256 half = contractTokenBalance / 2;
uint256 otherHalf = contractTokenBalance - half;
uint256 initialBalance = address(this).balance;
swapTokensForEth(half);
uint256 newBalance = address(this).balance - initialBalance;
if (newBalance == 0) return;
addLiquidity(otherHalf, newBalance);
emit SwapAndLiquify(half, newBalance, otherHalf);
}
function swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = getNativeCurrency();
_approve(address(this), address(uniswapV2Router), tokenAmount);
if (block.chainid == 61) {
try
uniswapV2Router
.swapExactTokensForETCSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
)
{} catch {
emit SwapTokensForEthFailed(tokenAmount);
}
} else if (block.chainid == 42262) {
try
uniswapV2Router
.swapExactTokensForROSESupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
)
{} catch {
emit SwapTokensForEthFailed(tokenAmount);
}
} else if (block.chainid == 43114 || block.chainid == 43113) {
try
uniswapV2Router
.swapExactTokensForAVAXSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
)
{} catch {
emit SwapTokensForEthFailed(tokenAmount);
}
} else {
try
uniswapV2Router
.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
)
{} catch {
emit SwapTokensForEthFailed(tokenAmount);
}
}
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(uniswapV2Router), tokenAmount);
if (block.chainid == 61) {
try
uniswapV2Router.addLiquidityETC{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
address(0xdead),
block.timestamp
)
{} catch {
emit AddLiquidityFailed(ethAmount);
}
} else if (block.chainid == 42262) {
try
uniswapV2Router.addLiquidityROSE{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
address(0xdead),
block.timestamp
)
{} catch {
emit AddLiquidityFailed(ethAmount);
}
} else if (block.chainid == 43114 || block.chainid == 43113) {
try
uniswapV2Router.addLiquidityAVAX{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
address(0xdead),
block.timestamp
)
{} catch {
emit AddLiquidityFailed(ethAmount);
}
} else {
try
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
address(0xdead),
block.timestamp
)
{} catch {
emit AddLiquidityFailed(ethAmount);
}
}
}
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 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tTeam
) = _getValues(tAmount);
rOwned[sender] = rOwned[sender] - rAmount;
rOwned[recipient] = rOwned[recipient] + rTransferAmount;
_takeLiquidity(sender, tLiquidity);
_takeTeamFee(sender, tTeam);
_reflectFee(sender, rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferToExcluded(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tTeam
) = _getValues(tAmount);
rOwned[sender] = rOwned[sender] - rAmount;
tOwned[recipient] = tOwned[recipient] + tTransferAmount;
rOwned[recipient] = rOwned[recipient] + rTransferAmount;
_takeLiquidity(sender, tLiquidity);
_takeTeamFee(sender, tTeam);
_reflectFee(sender, rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferFromExcluded(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tTeam
) = _getValues(tAmount);
tOwned[sender] = tOwned[sender] - tAmount;
rOwned[sender] = rOwned[sender] - rAmount;
rOwned[recipient] = rOwned[recipient] + rTransferAmount;
_takeLiquidity(sender, tLiquidity);
_takeTeamFee(sender, tTeam);
_reflectFee(sender, rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
}