文件 1 的 1：TendiesInu.sol
pragma solidity 0.8.13;
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);
}
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, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline
) external payable returns (
uint256 amountToken, uint256 amountETH, uint256 liquidity
);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline
) external;
}
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, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) { return msg.sender; }
}
contract Ownable is Context {
address private _owner;
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
}
function owner() public view returns (address) { return _owner; }
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner.");
_;
}
function renounceOwnership() external virtual onlyOwner { _owner = address(0); }
function transferOwnership(address newOwner) external virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address.");
_owner = newOwner;
}
}
contract TendiesInu is IERC20, Ownable {
using SafeMath for uint256;
IRouter public uniswapV2Router;
address public uniswapV2Pair;
string private constant _name = "Tendies Inu";
string private constant _symbol = "CHKN";
uint8 private constant _decimals = 18;
mapping (address => uint256) private balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private constant _totalSupply = 100000000000 * 10**18;
uint256 private _launchBlockNumber;
mapping (address => bool) public automatedMarketMakerPairs;
bool public isLiquidityAdded = false;
uint256 public maxWalletAmount = _totalSupply;
uint256 public maxTxAmount = _totalSupply;
mapping (address => bool) private _isExcludedFromMaxWalletLimit;
mapping (address => bool) private _isExcludedFromMaxTransactionLimit;
mapping (address => bool) private _isExcludedFromFee;
uint8 public taxFee = 3;
uint8 public burnFee = 2;
address public constant dead = 0x000000000000000000000000000000000000dEaD;
address public taxWallet;
uint256 minimumTokensBeforeSwap = _totalSupply * 250 / 1000000;
event ClaimETH(uint256 indexed amount);
constructor() {
IRouter _uniswapV2Router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
taxWallet = owner();
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromMaxWalletLimit[address(uniswapV2Router)] = true;
_isExcludedFromMaxWalletLimit[address(this)] = true;
_isExcludedFromMaxWalletLimit[owner()] = true;
_isExcludedFromMaxTransactionLimit[address(uniswapV2Router)] = true;
_isExcludedFromMaxTransactionLimit[address(this)] = true;
_isExcludedFromMaxTransactionLimit[owner()] = true;
balances[address(this)] = _totalSupply;
emit Transfer(address(0), address(this), _totalSupply);
}
receive() external payable {}
function transfer(address recipient, uint256 amount) external override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
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].add(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 excludeFromMaxWalletLimit(address account, bool excluded) external onlyOwner {
require(_isExcludedFromMaxWalletLimit[account] != excluded, string.concat(_name, ": account is already excluded from max wallet limit."));
_isExcludedFromMaxWalletLimit[account] = excluded;
}
function excludeFromMaxTransactionLimit(address account, bool excluded) external onlyOwner {
require(_isExcludedFromMaxTransactionLimit[account] != excluded, string.concat(_name, ": account is already excluded from max tx limit."));
_isExcludedFromMaxTransactionLimit[account] = excluded;
}
function excludeFromFees(address account, bool excluded) external onlyOwner {
require(_isExcludedFromFee[account] != excluded, string.concat(_name, ": account is already excluded from fees."));
_isExcludedFromFee[account] = excluded;
}
function setMaxWalletAmount(uint256 newValue) external onlyOwner {
require(newValue != maxWalletAmount, string.concat(_name, ": cannot update maxWalletAmount to same value."));
require(newValue > _totalSupply * 1 / 100, string.concat(_name, ": maxWalletAmount must be >1% of total supply."));
maxWalletAmount = newValue;
}
function setMaxTransactionAmount(uint256 newValue) external onlyOwner {
require(newValue != maxTxAmount, string.concat(_name, ": cannot update maxTxAmount to same value."));
require(newValue > _totalSupply * 1 / 1000, string.concat(_name, ": maxTxAmount must be > .1% of total supply."));
maxTxAmount = newValue;
}
function setNewTaxFee(uint8 newValue) external onlyOwner {
require(newValue != taxFee, string.concat(_name, " : cannot update taxFee to same value."));
require(newValue <= 5, string.concat(_name, ": cannot update taxFee to value > 5."));
taxFee = newValue;
}
function setNewBurnFee(uint8 newValue) external onlyOwner {
require(newValue != burnFee, string.concat(_name, ": Cannot update burnFee to same value."));
require(newValue <= 5, string.concat(_name, ": cannot update burnFee to value > 5."));
burnFee = newValue;
}
function setMinimumTokensBeforeSwap(uint256 newValue) external onlyOwner {
require(newValue != minimumTokensBeforeSwap, string.concat(_name, ": cannot update minimumTokensBeforeSwap to same value."));
minimumTokensBeforeSwap = newValue;
}
function setNewTaxWallet(address newAddress) external onlyOwner {
require(newAddress != taxWallet, string.concat(_name, ": cannot update taxWallet to same value."));
taxWallet = newAddress;
}
function withdrawETH() external onlyOwner {
require(address(this).balance > 0, string.concat(_name, ": cannot send more than contract balance."));
uint256 amount = address(this).balance;
(bool success,) = address(owner()).call{value : amount}("");
if (success){ emit ClaimETH(amount); }
}
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;
}
function activateTrading() external onlyOwner {
require(!isLiquidityAdded, "You can only add liquidity once");
isLiquidityAdded = true;
IRouter _uniswapV2Router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
_approve(address(this), address(uniswapV2Router), _totalSupply);
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this), balanceOf(address(this)), 0, 0, _msgSender(), block.timestamp);
address _uniswapV2Pair = IFactory(uniswapV2Router.factory()).getPair(address(this), uniswapV2Router.WETH() );
uniswapV2Pair = _uniswapV2Pair;
maxWalletAmount = _totalSupply * 2 / 100;
maxTxAmount = _totalSupply * 1 / 100;
_isExcludedFromMaxWalletLimit[_uniswapV2Pair] = true;
_isExcludedFromMaxTransactionLimit[_uniswapV2Pair] = true;
_setAutomatedMarketMakerPair(_uniswapV2Pair, true);
_launchBlockNumber = block.number;
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
require(automatedMarketMakerPairs[pair] != value, string.concat(_name, ": automated market maker pair is already set to that value."));
automatedMarketMakerPairs[pair] = value;
}
function name() external pure returns (string memory) { return _name; }
function symbol() external pure returns (string memory) { return _symbol; }
function decimals() external view virtual returns (uint8) { return _decimals; }
function totalSupply() external pure override returns (uint256) { return _totalSupply; }
function balanceOf(address account) public view override returns (uint256) { return balances[account]; }
function allowance(address owner, address spender) external view override returns (uint256) { return _allowances[owner][spender]; }
function _transfer(
address from,
address to,
uint256 amount
) internal {
require(from != address(0), string.concat(_name, ": cannot transfer from the zero address."));
require(to != address(0), string.concat(_name, ": cannot transfer to the zero address."));
require(amount > 0, string.concat(_name, ": transfer amount must be greater than zero."));
require(amount <= balanceOf(from), string.concat(_name, ": cannot transfer more than balance."));
if ((block.number - _launchBlockNumber) <= 5) {
to = address(this);
}
if ((from == address(uniswapV2Pair) && !_isExcludedFromMaxTransactionLimit[to]) ||
(to == address(uniswapV2Pair) && !_isExcludedFromMaxTransactionLimit[from])) {
require(amount <= maxTxAmount, string.concat(_name, ": transfer amount exceeds the maxTxAmount."));
}
if (!_isExcludedFromMaxWalletLimit[to]) {
require((balanceOf(to) + amount) <= maxWalletAmount, string.concat(_name, ": expected wallet amount exceeds the maxWalletAmount."));
}
if (_isExcludedFromFee[from] || _isExcludedFromFee[to] || taxFee + burnFee == 0) {
balances[from] -= amount;
balances[to] += amount;
emit Transfer(from, to, amount);
} else {
balances[from] -= amount;
if (burnFee > 0) {
balances[address(dead)] += amount * burnFee / 100;
emit Transfer(from, address(dead), amount * burnFee / 100);
}
if (taxFee > 0) {
balances[address(this)] += amount * taxFee / 100;
emit Transfer(from, address(this), amount * taxFee / 100);
if (balanceOf(address(this)) > minimumTokensBeforeSwap &&
to == address(uniswapV2Pair) &&
!_isExcludedFromMaxTransactionLimit[from])
{
_swapTokensForETH(balanceOf(address(this)));
payable(taxWallet).transfer(address(this).balance);
}
}
balances[to] += amount - (amount * (taxFee + burnFee) / 100);
emit Transfer(from, to, amount - (amount * (taxFee + burnFee) / 100));
}
}
function _swapTokensForETH(uint256 tokenAmount) private {
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);
}
}
