Contract Source Code:
File 1 of 1 : Neuralink
// SPDX-License-Identifier: MIT
//https://t.me/NeuralinkPortal
pragma solidity 0.8.16;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {return a + b;}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {return a - b;}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {return a * b;}
function div(uint256 a, uint256 b) internal pure returns (uint256) {return a / b;}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {return a % b;}
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {uint256 c = a + b; if(c < a) return(false, 0); return(true, c);}}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b > a) return(false, 0); return (true, a - b);}}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if (a == 0) return(true, 0); uint256 c = a * b;
if(c / a != b) return(false, 0); return(true, c);}}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b == 0) return(false, 0); return(true, a / b);}}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b == 0) return(false, 0); return(true, a % b);}}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b <= a, errorMessage); return a - b;}}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b > 0, errorMessage); return a / b;}}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b > 0, errorMessage); return a % b;}}}
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 getOwner() external view returns (address);
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 Ownable {
address internal owner;
constructor(address _owner) {owner = _owner;}
modifier onlyOwner() {require(isOwner(msg.sender), "!OWNER"); _;}
function isOwner(address account) public view returns (bool) {return account == owner;}
function transferOwnership(address payable adr) public onlyOwner {owner = adr; emit OwnershipTransferred(adr);}
function renounceOwnership() public onlyOwner {owner = 0x000000000000000000000000000000000000dEaD; emit OwnershipTransferred(0x000000000000000000000000000000000000dEaD);}
event OwnershipTransferred(address owner);
}
interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IRouter {
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);
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 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 Neuralink is IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "Neuralink";
string private constant _symbol = "NEURALINK";
uint8 private constant _decimals = 18;
uint256 private _totalSupply = 1000000 * (10 ** _decimals);
uint256 private _maxTxAmountPercent = 2;
uint256 private _maxTransferPercent = 2;
uint256 private _maxWalletPercent = 2;
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) public isExcludedFromFees;
IRouter router;
address public pair;
bool private tradingOpen = true;
uint256 private liqFee = 0;
uint256 private devFee = 20;
uint256 private totalFee = 20;
uint256 private sellFee = 70;
uint256 private transferFee = 100;
uint256 private denominator = 100;
bool private contractSwapEnabled = true;
uint256 private swapTimes;
bool private swapping;
uint256 swapAmount = 3;
uint256 private swapThreshold = ( _totalSupply * 2000 ) / 100000; //2%
uint256 private minSwapTokenAmount = ( _totalSupply * 10 ) / 100000;
modifier lockTheSwap {swapping = true; _; swapping = false;}
address internal constant DEAD = 0x000000000000000000000000000000000000dEaD;
address public devWallet = 0xD5fce3152212136F5393283c53564FBae2B6Bdc6;
constructor() Ownable(msg.sender) {
IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router;
pair = _pair;
isExcludedFromFees[address(this)] = true;
isExcludedFromFees[msg.sender] = true;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable {}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function getOwner() external view override returns (address) {
return owner;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function isCont(address addr) internal view returns (bool) {
uint size; assembly { size := extcodesize(addr)
}
return size > 0;
}
function excludeFromFees(address _address, bool _enabled) external onlyOwner {
isExcludedFromFees[_address] = _enabled;
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(msg.sender, spender, amount);return true;
}
function totalSupply() public view override returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(address(0)));
}
function _maxWalletToken() public view returns (uint256) {
return totalSupply() * _maxWalletPercent / denominator;
}
function _maxTxAmount() public view returns (uint256) {
return totalSupply() * _maxTxAmountPercent / denominator;
}
function _maxTransferAmount() public view returns (uint256) {
return totalSupply() * _maxTransferPercent / denominator;
}
function preTxCheck(address sender, address recipient, uint256 amount) internal view {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(amount > uint256(0), "Transfer amount must be greater than zero");
require(amount <= balanceOf(sender),"You are trying to transfer more than your balance");
}
function _transfer(address sender, address recipient, uint256 amount) private {
preTxCheck(sender, recipient, amount);
checkIfTradingIsAllowed(sender, recipient);
checkMaxWalletLimit(sender, recipient, amount);
swapbackCounters(sender, recipient);
checkTxLimit(sender, recipient, amount);
swapBack(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount);
uint256 amountReceived = shouldTakeFee(sender, recipient) ? takeFee(sender, recipient, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
}
function updateFees(uint256 _liq, uint256 _dev, uint256 _total, uint256 _sell, uint256 _trans) external onlyOwner {
liqFee = _liq;
devFee = _dev;
totalFee = _total;
sellFee = _sell;
transferFee = _trans;
}
function updateLimits(uint256 _buy, uint256 _trans, uint256 _wallet) external onlyOwner {
_maxTxAmountPercent = _buy;
_maxTransferPercent = _trans;
_maxWalletPercent = _wallet;
}
function updateDevWallet(address newDevWallet) external onlyOwner{
devWallet = newDevWallet;
}
function removeLimits() external onlyOwner {
_maxTxAmountPercent = totalSupply();
_maxTransferPercent = totalSupply();
_maxWalletPercent = totalSupply();
}
function commenceTrade() external onlyOwner {
tradingOpen = true;
}
function checkIfTradingIsAllowed(address sender, address recipient) internal view {
if(!isExcludedFromFees[sender] && !isExcludedFromFees[recipient]){require(tradingOpen, "tradingAllowed");}
}
function checkMaxWalletLimit(address sender, address recipient, uint256 amount) internal view {
if(!isExcludedFromFees[sender] && !isExcludedFromFees[recipient] && recipient != address(pair) && recipient != address(DEAD)){
require((_balances[recipient].add(amount)) <= _maxWalletToken(), "Exceeds maximum wallet amount.");}
}
function swapbackCounters(address sender, address recipient) internal {
if(recipient == pair && !isExcludedFromFees[sender]){swapTimes += uint256(1);}
}
function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
if(sender != pair){require(amount <= _maxTransferAmount() || isExcludedFromFees[sender] || isExcludedFromFees[recipient], "TX Limit Exceeded");}
require(amount <= _maxTxAmount() || isExcludedFromFees[sender] || isExcludedFromFees[recipient], "TX Limit Exceeded");
}
function swapAndLiquify(uint256 tokens) private lockTheSwap {
uint256 _denominator = (liqFee.add(1).add(devFee)).mul(2);
uint256 tokensToAddLiquidityWith = tokens.mul(liqFee).div(_denominator);
uint256 toSwap = tokens.sub(tokensToAddLiquidityWith);
uint256 initialBalance = address(this).balance;
swapTokensForETH(toSwap);
uint256 deltaBalance = address(this).balance.sub(initialBalance);
uint256 unitBalance= deltaBalance.div(_denominator.sub(liqFee));
uint256 ETHToAddLiquidityWith = unitBalance.mul(liqFee);
if(ETHToAddLiquidityWith > uint256(0)){addLiquidity(tokensToAddLiquidityWith, ETHToAddLiquidityWith); }
uint256 remainingBalance = address(this).balance;
if(remainingBalance > uint256(0)){payable(devWallet).transfer(remainingBalance);}
}
function addLiquidity(uint256 tokenAmount, uint256 ETHAmount) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{value: ETHAmount}(
address(this),
tokenAmount,
0,
0,
devWallet,
block.timestamp);
}
function swapTokensForETH(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp);
}
function shouldSwapBack(address sender, address recipient, uint256 amount) internal view returns (bool) {
bool aboveMin = amount >= minSwapTokenAmount;
bool aboveThreshold = balanceOf(address(this)) >= swapThreshold;
return !swapping && contractSwapEnabled && tradingOpen && aboveMin && !isExcludedFromFees[sender] && recipient == pair && swapTimes >= swapAmount && aboveThreshold;
}
function updateSwapTrheshold(uint256 _newSwapTreshold) external onlyOwner{
swapThreshold = _totalSupply.mul(_newSwapTreshold).div(uint256(100000));
}
function updateMinSwapTokensAmount(uint256 _newMinSwapTokensAtAmount) external onlyOwner{
minSwapTokenAmount = _totalSupply.mul(_newMinSwapTokensAtAmount).div(uint256(100000));
}
function swapBack(address sender, address recipient, uint256 amount) internal {
if(shouldSwapBack(sender, recipient, amount)){swapAndLiquify(swapThreshold); swapTimes = uint256(0);}
}
function shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return !isExcludedFromFees[sender] && !isExcludedFromFees[recipient];
}
function getTotalFee(address sender, address recipient) internal view returns (uint256) {
if(recipient == pair){return sellFee;}
if(sender == pair){return totalFee;}
return transferFee;
}
function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {
if(getTotalFee(sender, recipient) > 0){
uint256 feeAmount = amount.div(denominator).mul(getTotalFee(sender, recipient));
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);} return amount;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
}