Contract Source Code:
import "@openzeppelin/[email protected]/access/Ownable.sol";
import "@openzeppelin/contracts/interfaces/IERC20.sol";
import "./IUniswapV2Router02.sol";
import "./safeMath.sol";
/*
Website: https://blackder.ai/
Twitter(X): https://twitter.com/blackder_ai
Telegram: https://t.me/blackder_ai
*/
// SPDX-License-Identifier: Unlicensed
pragma solidity 0.8.25;
contract BlackderAi is
Context,
IERC20,
Ownable
{
using SafeMath for uint256;
uint256 private _rTotal = (MAX - (MAX % _totalSupply));
uint256 private constant MAX = ~uint256(0);
uint256 private _feeOnBuy = 5;
uint256 private _feeOnSell = 5;
uint256 private _tempFee = _fee;
uint256 private _fee = _feeOnSell;
address payable private _marketingWallet =
payable(0xe85e3a6EA4432f2CD44d3FCc8C73828d7ab89149);
mapping(address => uint256) private _rOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
uint8 private constant _decimals = 9;
string private constant _name = "Blackder AI";
string private constant _symbol = "BLD";
bool private _maxTxn = false;
bool private _maxWallet = false;
IUniswapV2Router02 public uniswapV2Router =
IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address public uniswapV2Pair;
bool private autoSwapEnabled = true;
bool private inSwap = false;
bool private _tradingOpen;
uint256 private constant _totalSupply = 100_000_000 * 10**9;
uint256 public _maxTxnSize = 1_000_000 * 10**9;
uint256 public _maxHoldSize = 2_000_000 * 10**9;
uint256 public _minSwappableAmount = 1000 * 10**9;
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[_marketingWallet] = true;
_rOwned[_msgSender()] = _rTotal;
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
emit Transfer(address(0), _msgSender(), _totalSupply);
}
function totalSupply() public pure override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function excludeMultipleAccountsFromFees(
address[] calldata accounts,
bool excluded
) public onlyOwner {
for (uint256 i = 0; i < accounts.length; i++) {
_isExcludedFromFee[accounts[i]] = excluded;
}
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function _getTValues(uint256 tAmount, uint256 fee)
private
pure
returns (uint256, uint256)
{
uint256 tTeam = tAmount.mul(fee).div(100);
uint256 tTransferAmount = tAmount.sub(tTeam);
return (tTransferAmount, tTeam);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
return (_rTotal, _totalSupply);
}
function toggleautoSwapEnabled(bool _autoSwapEnabled) public onlyOwner {
autoSwapEnabled = _autoSwapEnabled;
}
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 tokenFromReflection(uint256 rAmount)
private
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"Amount has to be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function switchTrading(bool __tradingOpen) public onlyOwner {
_tradingOpen = __tradingOpen;
}
function dropFee() private {
if (_fee == 0) return;
_tempFee = _fee;
_fee = 0;
}
function restoreFee() private {
_fee = _tempFee;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "Can't approve from zero address");
require(spender != address(0), "Can't approve to zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "Cant transfer from address zero");
require(to != address(0), "Cant transfer to address zero");
require(amount > 0, "Amount should be above zero");
if (from != owner() && to != owner()) {
//Trade start check
if (!_tradingOpen) {
require(
from == owner(),
"Only owner can trade before trading activation"
);
}
require(amount <= _maxTxnSize, "Exceeded max transaction limit");
if (to != uniswapV2Pair) {
require(
balanceOf(to) + amount < _maxHoldSize,
"Exceeds max hold balance"
);
}
uint256 contractTokenBalance = balanceOf(address(this));
bool swapAllowed = contractTokenBalance >= _minSwappableAmount;
if (contractTokenBalance >= _maxTxnSize) {
contractTokenBalance = _maxTxnSize;
}
if (
swapAllowed &&
autoSwapEnabled &&
from != uniswapV2Pair &&
!_isExcludedFromFee[from] &&
!inSwap &&
!_isExcludedFromFee[to]
) {
swap2Eth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
_sendFeesToMarketing(address(this).balance);
}
}
}
bool takeFee = true;
if (
(_isExcludedFromFee[to] || _isExcludedFromFee[from]) ||
(to != uniswapV2Pair && from != uniswapV2Pair)
) {
takeFee = false;
} else {
if (from == uniswapV2Pair && to != address(uniswapV2Router)) {
_fee = _feeOnBuy;
}
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_fee = _feeOnSell;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
function swap2Eth(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 manualswap() external {
require(_msgSender() == _marketingWallet);
uint256 contractBalance = balanceOf(address(this));
swap2Eth(contractBalance);
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(_msgSender(), recipient, 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,
"the transfer amount exceeds allowance"
)
);
return true;
}
function setMinSwapTokensThreshold(uint256 minSwappableAmount)
public
onlyOwner
{
_minSwappableAmount = minSwappableAmount;
}
function setFees(uint256 feeOnBuy, uint256 feeOnSell) public onlyOwner {
require(
feeOnBuy >= 0 && feeOnBuy <= 95,
"Buy tax must be between 0% and 95%"
);
require(
feeOnSell >= 0 && feeOnSell <= 95,
"Sell tax must be between 0% and 95%"
);
_feeOnBuy = feeOnBuy;
_feeOnSell = feeOnSell;
}
function _transferApplyingFees(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 tTransferAmount,
uint256 tTeam
) = _getFeeValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_transferFeeDev(tTeam);
emit Transfer(sender, recipient, tTransferAmount);
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) dropFee();
_transferApplyingFees(sender, recipient, amount);
if (!takeFee) restoreFee();
}
function _transferFeeDev(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _getFeeValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256
)
{
(uint256 tTransferAmount, uint256 tTeam) = _getTValues(tAmount, _fee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount) = _getRValues(
tAmount,
tTeam,
currentRate
);
return (rAmount, rTransferAmount, tTransferAmount, tTeam);
}
function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxnSize = maxTxAmount;
}
receive() external payable {}
function setMaxHoldSize(uint256 maxHoldSize) public onlyOwner {
_maxHoldSize = maxHoldSize;
}
function _getRValues(
uint256 tAmount,
uint256 tTeam,
uint256 currentRate
) private pure returns (uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rTeam);
return (rAmount, rTransferAmount);
}
function _sendFeesToMarketing(uint256 amount) private {
_marketingWallet.transfer(amount);
}
function manualSwap() external {
require(_msgSender() == _marketingWallet);
uint256 contractETHBalance = address(this).balance;
_sendFeesToMarketing(contractETHBalance);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
}
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.18;
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 div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
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;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
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;
}
}
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.18;
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);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../token/ERC20/IERC20.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 value) external returns (bool);
}