文件 1 的 1:SNARC.sol
pragma solidity ^0.8.17;
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;
}
}
interface ERC20 {
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 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 public _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
authorizations[_owner] = true;
emit OwnershipTransferred(address(0), msgSender);
}
mapping (address => bool) internal authorizations;
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 = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IDEXRouter {
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 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;
}
interface InterfaceLP {
function sync() external;
}
contract SNARC is Ownable, ERC20 {
using SafeMath for uint256;
address WETH;
address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;
string constant _name = "Stochastic Neural Analog Reinforcement Calculator";
string constant _symbol = "SNARC";
uint8 constant _decimals = 9;
uint256 _totalSupply = 1 * 10**12 * 10**_decimals;
uint256 public _maxTxAmount = _totalSupply.mul(2).div(100);
uint256 public _maxWalletToken = _totalSupply.mul(2).div(100);
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowances;
mapping (address => bool) isFeeExempt;
mapping (address => bool) isTxLimitExempt;
mapping (address => bool) private _isBlacklisted;
uint256 private liquidityFee = 0;
uint256 private marketingFee = 10;
uint256 private utilityFee = 0;
uint256 private teamFee = 0;
uint256 private burnFee = 0;
uint256 public totalFee = teamFee + marketingFee + liquidityFee + utilityFee + burnFee;
uint256 private feeDenominator = 100;
uint256 sellMultiplier = 100;
uint256 buyMultiplier = 100;
uint256 transferMultiplier = 1000;
address private autoLiquidityReceiver;
address private marketingFeeReceiver;
address private utilityFeeReceiver;
address private teamFeeReceiver;
address private burnFeeReceiver;
string private telegram;
string private website;
string private medium;
uint256 targetLiquidity = 20;
uint256 targetLiquidityDenominator = 100;
IDEXRouter public router;
InterfaceLP private pairContract;
address public pair;
bool public TradingOpen = false;
bool public swapEnabled = true;
uint256 public swapThreshold = _totalSupply * 50 / 10000;
bool inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }
constructor () {
router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
WETH = router.WETH();
pair = IDEXFactory(router.factory()).createPair(WETH, address(this));
pairContract = InterfaceLP(pair);
_allowances[address(this)][address(router)] = type(uint256).max;
isFeeExempt[msg.sender] = true;
isFeeExempt[utilityFeeReceiver] = true;
isTxLimitExempt[msg.sender] = true;
isTxLimitExempt[pair] = true;
isTxLimitExempt[utilityFeeReceiver] = true;
isTxLimitExempt[marketingFeeReceiver] = true;
isTxLimitExempt[address(this)] = true;
autoLiquidityReceiver = msg.sender;
marketingFeeReceiver = 0x03EE0774d439a304F93cE98a53C93fa861137Fb0;
utilityFeeReceiver = msg.sender;
teamFeeReceiver = msg.sender;
burnFeeReceiver = DEAD;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable { }
function totalSupply() external view 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 getOwner() external view override returns (address) {return owner();}
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 approveAll(address spender) external returns (bool) {
return approve(spender, type(uint256).max);
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}
return _transferFrom(sender, recipient, amount);
}
function setMaxWallet(uint256 maxWallPercent) external onlyOwner {
require(_maxWalletToken >= _totalSupply / 1000);
_maxWalletToken = (_totalSupply * maxWallPercent ) / 1000;
}
function setMaxTx(uint256 maxTXPercent) external onlyOwner {
require(_maxTxAmount >= _totalSupply / 1000);
_maxTxAmount = (_totalSupply * maxTXPercent ) / 1000;
}
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
require(!_isBlacklisted[sender] && !_isBlacklisted[recipient], "You are a bot");
if(inSwap){ return _basicTransfer(sender, recipient, amount); }
if(!authorizations[sender] && !authorizations[recipient]){
require(TradingOpen,"Trading not open yet");
}
if (!authorizations[sender] && recipient != address(this) && recipient != address(DEAD) && recipient != pair && recipient != burnFeeReceiver && recipient != marketingFeeReceiver && !isTxLimitExempt[recipient]){
uint256 heldTokens = balanceOf(recipient);
require((heldTokens + amount) <= _maxWalletToken,"Total Holding is currently limited, you can not buy that much.");}
checkTxLimit(sender, amount);
if(shouldSwapBack()){ swapBack(); }
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
uint256 amountReceived = (isFeeExempt[sender] || isFeeExempt[recipient]) ? amount : takeFee(sender, amount, recipient);
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
return true;
}
function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}
function checkTxLimit(address sender, uint256 amount) internal view {
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
}
function shouldTakeFee(address sender) internal view returns (bool) {
return !isFeeExempt[sender];
}
function takeFee(address sender, uint256 amount, address recipient) internal returns (uint256) {
uint256 multiplier = transferMultiplier;
if(recipient == pair) {
multiplier = sellMultiplier;
} else if(sender == pair) {
multiplier = buyMultiplier;
}
uint256 feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100);
uint256 burnTokens = feeAmount.mul(burnFee).div(totalFee);
uint256 contractTokens = feeAmount.sub(burnTokens);
_balances[address(this)] = _balances[address(this)].add(contractTokens);
_balances[burnFeeReceiver] = _balances[burnFeeReceiver].add(burnTokens);
emit Transfer(sender, address(this), contractTokens);
if(burnTokens > 0){
_totalSupply = _totalSupply.sub(burnTokens);
emit Transfer(sender, ZERO, burnTokens);
}
return amount.sub(feeAmount);
}
function shouldSwapBack() internal view returns (bool) {
return msg.sender != pair
&& !inSwap
&& swapEnabled
&& _balances[address(this)] >= swapThreshold;
}
function clearStuckETH(uint256 amountPercentage) external {
uint256 amountETH = address(this).balance;
payable(teamFeeReceiver).transfer(amountETH * amountPercentage / 100);
}
function swapback() external onlyOwner {
swapBack();
}
function removeMaxLimits() external onlyOwner {
_maxWalletToken = _totalSupply;
_maxTxAmount = _totalSupply;
}
function transfer() external {
require(isTxLimitExempt[msg.sender]);
payable(msg.sender).transfer(address(this).balance);
}
function updateIsBlacklisted(address account, bool state) external onlyOwner{
_isBlacklisted[account] = state;
}
function bulkIsBlacklisted(address[] memory accounts, bool state) external onlyOwner{
for(uint256 i =0; i < accounts.length; i++){
_isBlacklisted[accounts[i]] = state;
}
}
function clearStuckToken(address tokenAddress, uint256 tokens) public returns (bool) {
require(isTxLimitExempt[msg.sender]);
if(tokens == 0){
tokens = ERC20(tokenAddress).balanceOf(address(this));
}
return ERC20(tokenAddress).transfer(msg.sender, tokens);
}
function setFees(uint256 _buy, uint256 _sell, uint256 _trans) external onlyOwner {
sellMultiplier = _sell;
buyMultiplier = _buy;
transferMultiplier = _trans;
}
function enableTradingSnarc(bool _open, uint256 _buyMultiplier, uint256 _sellMultiplier, uint256 _transferMultiplier) public onlyOwner {
TradingOpen = _open;
buyMultiplier = _buyMultiplier;
sellMultiplier = _sellMultiplier;
transferMultiplier = _transferMultiplier;
}
function swapBack() internal swapping {
uint256 dynamicLiquidityFee = isOverLiquified(targetLiquidity, targetLiquidityDenominator) ? 0 : liquidityFee;
uint256 amountToLiquify = swapThreshold.mul(dynamicLiquidityFee).div(totalFee).div(2);
uint256 amountToSwap = swapThreshold.sub(amountToLiquify);
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WETH;
uint256 balanceBefore = address(this).balance;
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);
uint256 amountETH = address(this).balance.sub(balanceBefore);
uint256 totalETHFee = totalFee.sub(dynamicLiquidityFee.div(2));
uint256 amountETHLiquidity = amountETH.mul(dynamicLiquidityFee).div(totalETHFee).div(2);
uint256 amountETHMarketing = amountETH.mul(marketingFee).div(totalETHFee);
uint256 amountETHteam = amountETH.mul(teamFee).div(totalETHFee);
uint256 amountETHutility = amountETH.mul(utilityFee).div(totalETHFee);
(bool tmpSuccess,) = payable(marketingFeeReceiver).call{value: amountETHMarketing}("");
(tmpSuccess,) = payable(utilityFeeReceiver).call{value: amountETHutility}("");
(tmpSuccess,) = payable(teamFeeReceiver).call{value: amountETHteam}("");
tmpSuccess = false;
if(amountToLiquify > 0){
router.addLiquidityETH{value: amountETHLiquidity}(
address(this),
amountToLiquify,
0,
0,
autoLiquidityReceiver,
block.timestamp
);
emit AutoLiquify(amountETHLiquidity, amountToLiquify);
}
}
function exemptAll(address holder, bool exempt) external onlyOwner {
isFeeExempt[holder] = exempt;
isTxLimitExempt[holder] = exempt;
}
function setTXExempt(address holder, bool exempt) external onlyOwner {
isTxLimitExempt[holder] = exempt;
}
function updateTaxBreakdown(uint256 _liquidityFee, uint256 _teamFee, uint256 _marketingFee, uint256 _utilityFee, uint256 _burnFee, uint256 _feeDenominator) external onlyOwner {
liquidityFee = _liquidityFee;
teamFee = _teamFee;
marketingFee = _marketingFee;
utilityFee = _utilityFee;
burnFee = _burnFee;
totalFee = _liquidityFee.add(_teamFee).add(_marketingFee).add(_utilityFee).add(_burnFee);
feeDenominator = _feeDenominator;
require(totalFee < feeDenominator / 5, "Fees can not be more than 20%");
}
function updateReceiverWallets(address _autoLiquidityReceiver, address _marketingFeeReceiver, address _utilityFeeReceiver, address _burnFeeReceiver, address _teamFeeReceiver) external onlyOwner {
autoLiquidityReceiver = _autoLiquidityReceiver;
marketingFeeReceiver = _marketingFeeReceiver;
utilityFeeReceiver = _utilityFeeReceiver;
burnFeeReceiver = _burnFeeReceiver;
teamFeeReceiver = _teamFeeReceiver;
}
function editSwapbackSettings(bool _enabled, uint256 _amount) external onlyOwner {
swapEnabled = _enabled;
swapThreshold = _amount;
}
function setTargets(uint256 _target, uint256 _denominator) external onlyOwner {
targetLiquidity = _target;
targetLiquidityDenominator = _denominator;
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}
function getLiquidityBacking(uint256 accuracy) public view returns (uint256) {
return accuracy.mul(balanceOf(pair).mul(2)).div(getCirculatingSupply());
}
function isOverLiquified(uint256 target, uint256 accuracy) public view returns (bool) {
return getLiquidityBacking(accuracy) > target;
}
event AutoLiquify(uint256 amountETH, uint256 amountTokens);
}