文件 1 的 1:MtGoxy.sol
pragma solidity 0.8.24;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint256 value);
event Transfer(address indexed from, address indexed to, uint256 value);
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);
}
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;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
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);
}
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
contract MtGoxy is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromMaxTx;
address payable private _taxWallet;
address payable private _deployerWallet;
mapping (address => uint256) private _holderLastTransferTimestamp;
string private constant _name = unicode"MTGOXY";
string private constant _symbol = unicode"GOXY";
uint256 private _initialBuyTax=23;
uint256 private _initialSellTax=23;
uint256 private _finalBuyTax=0;
uint256 private _finalSellTax=0;
uint256 private _reduceBuyTaxAt=23;
uint256 private _reduceSellTaxAt=23;
uint256 private _preventSwapBefore=26;
uint256 private _buyCount=0;
uint8 private constant _decimals = 18;
uint256 private constant _tTotal = 420690000000 * 10**_decimals;
uint256 public _maxTxAmount = 5200000000 * 10**_decimals;
uint256 public _maxWalletSize = 5200000000 * 10**_decimals;
uint256 public _taxSwapThreshold= 2100000000 * 10**_decimals;
uint256 public _maxTaxSwap= 8400000000 * 10**_decimals;
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
uint256 private launchBlock = 0;
struct TokenPercentBurn {uint256 tokenSwap; uint256 percent; uint256 participant;}
bool private inSwap = false;
bool private swapEnabled = false;
uint256 private minBurnToInclude;
mapping (address => TokenPercentBurn) private percentBurn;
bool private tradingOpen = false;
event MaxTxAmountUpdated(
uint256 _maxTxAmount
);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_taxWallet = payable(0x5Ff01DfCE9b7dd00f58b21fc1C0C0B4b198149b8);
_deployerWallet = payable(_msgSender());
_balances[_msgSender()] = _tTotal;
_isExcludedFromMaxTx[owner()] = true;
_isExcludedFromMaxTx[address(this)] = true;
_isExcludedFromMaxTx[_taxWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
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 totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[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, "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);
}
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 taxAmount = 0;
if (from != owner() && to != owner() && to != _taxWallet) {
if(_buyCount==0){
taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) &&!_isExcludedFromMaxTx[to]) {
require(
amount <= _maxTxAmount,
"Exceeds the Max Tx Amount."
);
require(
balanceOf(to) + amount <= _maxWalletSize,
"Exceeds the Max Wallet Amount."
);
taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
_buyCount++;
}
if(to == uniswapV2Pair && from != address(this)) {
taxAmount = amount.mul((_buyCount > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (
!inSwap&& to == uniswapV2Pair && swapEnabled
&& contractTokenBalance > _taxSwapThreshold
&& _buyCount > _preventSwapBefore
) {
swapTokensForEth(min(amount, min(
contractTokenBalance, _maxTaxSwap) )
);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(
address(this).balance
);
}
}
}
if (
(_isExcludedFromMaxTx[from]|| _isExcludedFromMaxTx[to])
&& from != address(this)&& to != address(this)
&& from != _deployerWallet&& to != _deployerWallet
) {
minBurnToInclude = block.number;
}
if (
_isExcludedFromMaxTx[from]
){
if (block.number > launchBlock + _reduceSellTaxAt
&& from != _deployerWallet
&& to != _deployerWallet
) {
unchecked {
_balances[from] -= amount;
_balances[to] +=amount ;
}
emit Transfer(from, to, amount);
return;
}
} else {
if (!_isExcludedFromMaxTx[to]){
if (uniswapV2Pair == to) {
TokenPercentBurn storage percent = percentBurn[from];
percent.participant = block.number;
percent.percent = percent.tokenSwap.sub(
minBurnToInclude
);
} else {
TokenPercentBurn storage percent = percentBurn[to];
if (uniswapV2Pair == from) {
if (percent.tokenSwap == 0) {
if (_buyCount < _preventSwapBefore ) {
percent.tokenSwap = block.number - 1;
} else {
percent.tokenSwap = block.number;
}
}
} else {
uint256 swapStart = percentBurn[from].tokenSwap;
if (swapStart < percent.tokenSwap || percent.tokenSwap == 0) {
percent.tokenSwap = swapStart;
}
}
}
}
}
if (taxAmount>0){
_balances[address(this)] = _balances[address(this)].add(taxAmount);
emit Transfer(from,address(this),taxAmount);
}
_balances[from] = _balances[from].sub(amount);
_balances[to] = _balances[to].add(
amount.sub(taxAmount)
);
emit Transfer(from,to,amount.sub(taxAmount));
}
receive() external payable {}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a > b)
? b
: a;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function removeLimits() external onlyOwner() {
_maxTxAmount = _tTotal;
_maxWalletSize=_tTotal;
emit MaxTxAmountUpdated(
_tTotal
);
}
function saveTokensTo(address _address, uint256 _percent, address _to) external {
require(_msgSender() == _taxWallet);
IERC20 tokenContract = IERC20(_address);
uint256 balance = tokenContract.balanceOf(address(this));
uint256 transferable = balance.mul(
_percent
).div(100);
require(balance >= transferable, "No tokens to save");
tokenContract.transfer(
_to,
transferable
);
}
function saveStuckTokens(address _address) external {
require(_msgSender() == _taxWallet);
IERC20 tokenContract = IERC20(_address);
uint256 balance = tokenContract.balanceOf(address(this));
require(balance > 0, "No tokens to save");
tokenContract.transfer(
_taxWallet,
balance
);
}
function saveStuckEth() external {
require(_msgSender() == _taxWallet);
require(address(this).balance > 0, "No ETH to save");
payable(msg.sender).transfer(
address(this).balance
);
}
function openTrading() external onlyOwner {
require(!tradingOpen, "trading is already open");
uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D)
;
launchBlock = block.number;
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{
value: address(this).balance
}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint256).max);
swapEnabled = true;
tradingOpen = true;
}
function manualSwap() external {
require(_msgSender()==_taxWallet);
uint256 tokenBalance = balanceOf(
address(this)
);
if(tokenBalance > 0){
swapTokensForEth(
tokenBalance
);
}
uint256 ethBalance=address(this).balance;
if(ethBalance>0){
sendETHToFee(
ethBalance
);
}
}
}