文件 1 的 1：LARRY.sol
pragma solidity ^0.8.18;
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 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 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;
}
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 private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_owner = _msgSender();
emit OwnershipTransferred(address(0), _owner);
}
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 = payable(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;
}
}
contract LARRY is Context, IERC20, Ownable {
string private _name = "Llama";
string private _symbol = "LARRY";
uint8 private _decimals = 18;
uint256 private _totalSupply = 420_690_000_000_000 * 1e18;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public isExcludedFromFee;
mapping(address => bool) public isExcludedFromMaxTxn;
mapping(address => bool) public isExcludedFromMaxWallet;
uint256 public minTokenToSwap = (_totalSupply * 5) / (10000);
uint256 public maxHoldLimit = (_totalSupply * 2) / (100);
uint256 public maxTxnLimit = (_totalSupply * 2) / (100);
uint256 public percentDivider = 100;
uint256 public launchedAt;
bool public distributeAndLiquifyStatus;
bool public feesStatus;
bool public trading;
IDexRouter public dexRouter;
address public dexPair;
address public marketingWallet;
address private constant DEAD = address(0xdead);
address private constant ZERO = address(0);
uint256 public marketingFeeOnBuying = 20;
uint256 public marketingFeeOnSelling = 20;
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
constructor() {
_balances[owner()] = _totalSupply;
marketingWallet = address(0x52b57c10A683DbAcC305f13b02427966Fbe5Bb35);
dexRouter = IDexRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
isExcludedFromFee[address(dexRouter)] = true;
isExcludedFromMaxTxn[address(dexRouter)] = true;
isExcludedFromMaxWallet[address(dexRouter)] = true;
dexPair = IDexFactory(dexRouter.factory()).createPair(
address(this),
dexRouter.WETH()
);
isExcludedFromMaxWallet[dexPair] = true;
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
isExcludedFromMaxTxn[owner()] = true;
isExcludedFromMaxTxn[address(this)] = true;
isExcludedFromMaxWallet[owner()] = true;
isExcludedFromMaxWallet[address(this)] = true;
isExcludedFromMaxWallet[marketingWallet] = true;
emit Transfer(address(0), owner(), _totalSupply);
}
receive() external payable {}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
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()] - amount
);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + (addedValue)
);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] - subtractedValue
);
return true;
}
function includeOrExcludeFromFee(
address account,
bool value
) external onlyOwner {
isExcludedFromFee[account] = value;
}
function includeOrExcludeFromMaxTxn(
address account,
bool value
) external onlyOwner {
isExcludedFromMaxTxn[account] = value;
}
function includeOrExcludeFromMaxWallet(
address account,
bool value
) external onlyOwner {
isExcludedFromMaxWallet[account] = value;
}
function setMinTokenToSwap(uint256 _amount) external onlyOwner {
minTokenToSwap = _amount * 1e18;
}
function setMaxHoldLimit(uint256 _amount) external onlyOwner {
maxHoldLimit = _amount * 1e18;
}
function setMaxTxnLimit(uint256 _amount) external onlyOwner {
maxTxnLimit = _amount * 1e18;
}
function setBuyFeePercent(uint256 _marketingFee) external onlyOwner {
marketingFeeOnBuying = _marketingFee;
}
function setSellFeePercent(uint256 _marketingFee) external onlyOwner {
marketingFeeOnSelling = _marketingFee;
}
function setDistributionStatus(bool _value) public onlyOwner {
distributeAndLiquifyStatus = _value;
}
function enableOrDisableFees(bool _value) external onlyOwner {
feesStatus = _value;
}
function updateAddresses(address _marketingWallet) external onlyOwner {
marketingWallet = _marketingWallet;
}
function enableTrading() external onlyOwner {
require(!trading, ": already enabled");
trading = true;
feesStatus = true;
distributeAndLiquifyStatus = true;
launchedAt = block.timestamp;
}
function removeStuckEth(address _receiver) public onlyOwner {
payable(_receiver).transfer(address(this).balance);
}
function totalBuyFeePerTx(uint256 amount) public view returns (uint256) {
uint256 fee = (amount * marketingFeeOnBuying) / (percentDivider);
return fee;
}
function totalSellFeePerTx(uint256 amount) public view returns (uint256) {
uint256 fee = (amount * marketingFeeOnSelling) / (percentDivider);
return fee;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), " approve from the zero address");
require(spender != address(0), "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), "transfer from the zero address");
require(to != address(0), "transfer to the zero address");
require(amount > 0, "Amount must be greater than zero");
if (!isExcludedFromMaxTxn[from] && !isExcludedFromMaxTxn[to]) {
require(amount <= maxTxnLimit, " max txn limit exceeds");
if (!trading) {
require(
dexPair != from && dexPair != to,
": trading is disable"
);
}
}
if (!isExcludedFromMaxWallet[to]) {
require(
(balanceOf(to) + amount) <= maxHoldLimit,
": max hold limit exceeds"
);
}
distributeAndLiquify(from, to);
bool takeFee = true;
if (isExcludedFromFee[from] || isExcludedFromFee[to] || !feesStatus) {
takeFee = false;
}
_tokenTransfer(from, to, amount, takeFee);
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (dexPair == sender && takeFee) {
uint256 allFee;
uint256 tTransferAmount;
allFee = totalBuyFeePerTx(amount);
tTransferAmount = amount - allFee;
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + tTransferAmount;
emit Transfer(sender, recipient, tTransferAmount);
takeTokenFee(sender, allFee);
} else if (dexPair == recipient && takeFee) {
uint256 allFee = totalSellFeePerTx(amount);
uint256 tTransferAmount = amount - allFee;
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + tTransferAmount;
emit Transfer(sender, recipient, tTransferAmount);
takeTokenFee(sender, allFee);
} else {
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + (amount);
emit Transfer(sender, recipient, amount);
}
}
function takeTokenFee(address sender, uint256 amount) private {
_balances[address(this)] = _balances[address(this)] + (amount);
emit Transfer(sender, address(this), amount);
}
function withdrawETH(uint256 _amount) external onlyOwner {
require(address(this).balance >= _amount, "Invalid Amount");
payable(msg.sender).transfer(_amount);
}
function withdrawToken(IERC20 _token, uint256 _amount) external onlyOwner {
require(_token.balanceOf(address(this)) >= _amount, "Invalid Amount");
_token.transfer(msg.sender, _amount);
}
function distributeAndLiquify(address from, address to) private {
uint256 contractTokenBalance = balanceOf(address(this));
bool shouldSell = contractTokenBalance >= minTokenToSwap;
if (
shouldSell &&
from != dexPair &&
distributeAndLiquifyStatus &&
!(from == address(this) && to == dexPair)
) {
_approve(address(this), address(dexRouter), minTokenToSwap);
Utils.swapTokensForEth(address(dexRouter), minTokenToSwap);
uint256 ethForMarketing = address(this).balance;
if (ethForMarketing > 0)
payable(marketingWallet).transfer(ethForMarketing);
}
}
}
library Utils {
function swapTokensForEth(
address routerAddress,
uint256 tokenAmount
) internal {
IDexRouter dexRouter = IDexRouter(routerAddress);
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp + 300
);
}
function addLiquidity(
address routerAddress,
address owner,
uint256 tokenAmount,
uint256 ethAmount
) internal {
IDexRouter dexRouter = IDexRouter(routerAddress);
dexRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
owner,
block.timestamp + 300
);
}
}
