Contract Name:
SmokedTokenBurn
Contract Source Code:
File 1 of 1 : SmokedTokenBurn
/**
Smoked Token Burn - $BURN
Telegram: https://t.me/SmokedTokenBurn
Twitter: https://twitter.com/SmokedTokenBurn
Website: https://SmokedTokenBurn.com
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
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() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), 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. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling 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);
}
}
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 amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` 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 amount) external returns (bool);
}
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
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;
}
// pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] 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 SmokedTokenBurn is Context, IERC20, IERC20Metadata, Ownable {
uint256 private constant MAX = ~uint256(0);
uint256 private _rTotalSupply; // total supply in r-space
uint256 private immutable _tTotalSupply; // total supply in t-space
string private _name;
string private _symbol;
address[] private _excludedFromReward;
address public marketingWallet;
address public communityWallet;
uint256 private _reduceBuyTaxAt = 25;
uint256 private _reduceSellTaxAt = 50;
uint256 private _whaleThreshold = 9000000 * 10 ** decimals();
uint256 private _marketingBuyTax = 150;
uint256 private _initialMarketingBuyTax = 1350;
uint256 private _antiWhaleBuyTax = 1450;
uint256 private _buyCount = 0;
uint256 private _marketingSellTax = 150;
uint256 private _initialMarketingSellTax = 1350;
uint256 private _antiWhaleSellTax = 1450;
uint256 private _sellCount = 0;
uint256 public taxFee = 150; // 200 => 2%
uint256 public totalFees;
uint256 public marketingBalance = 0;
uint256 public swapTokensAtAmount = 500000 * 10 ** decimals();
bool public tradingActive = false;
bool public swapEnabled = false;
bool private swapping;
IUniswapV2Router02 public immutable uniswapV2Router;
address private uniswapV2Pair;
mapping(address => uint256) private _rBalances; // balances in r-space
mapping(address => uint256) private _tBalances; // balances in t-space
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public isExcludedFromFee;
mapping(address => bool) public isExcludedFromReward;
mapping(address => bool) private automatedMarketMakerPairs;
event SetFee(uint256 value);
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
constructor() {
_name = 'Smoked Token Burn';
_symbol = 'BURN';
_tTotalSupply = 1000000000 * 10 ** decimals();
marketingWallet = address(0x5BC05951cF89B8E95FBC5CB0Fb54c2B5B5eA3bc5);
communityWallet = address(0xaFD308eeb212140C87d43151546b83Db72872fFE);
uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(uniswapV2Router), _tTotalSupply);
excludeFromFee(owner());
excludeFromFee(address(this));
excludeFromFee(marketingWallet);
excludeFromFee(communityWallet);
_mint(owner(), _tTotalSupply);
}
receive() external payable {}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _tTotalSupply;
}
function balanceOf(
address account
) public view virtual override returns (uint256) {
uint256 rate = _getRate();
return _rBalances[account] / rate;
}
function rBalance(address spender) external view returns (uint256) {
require(_rBalances[spender] > 0, "Address does not have any rbalance.");
return _rBalances[spender];
}
function tBalance(address spender) external view returns (uint256) {
require(_tBalances[spender] > 0, "Address does not have any tbalance.");
return _tBalances[spender];
}
function transfer(
address to,
uint256 amount
) public virtual override returns (bool) {
_transfer(msg.sender, to, amount);
return true;
}
function allowance(
address account,
address spender
) public view virtual override returns (uint256) {
return _allowances[account][spender];
}
function approve(
address spender,
uint256 amount
) public virtual override returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
_approve(
msg.sender,
spender,
allowance(msg.sender, spender) + addedValue
);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
uint256 currentAllowance = allowance(msg.sender, spender);
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
unchecked {
_approve(msg.sender, spender, currentAllowance - subtractedValue);
}
return true;
}
function setFee(uint256 newTxFee) public onlyOwner {
taxFee = newTxFee;
emit SetFee(taxFee);
}
function excludeFromReward(address account) public onlyOwner {
require(!isExcludedFromReward[account], "Address already excluded");
require(_excludedFromReward.length < 100, "Excluded list is too long");
if (_rBalances[account] > 0) {
uint256 rate = _getRate();
_tBalances[account] = _rBalances[account] / rate;
}
isExcludedFromReward[account] = true;
_excludedFromReward.push(account);
}
function includeInReward(address account) public onlyOwner {
require(isExcludedFromReward[account], "Account is already included");
uint256 nExcluded = _excludedFromReward.length;
for (uint256 i = 0; i < nExcluded; i++) {
if (_excludedFromReward[i] == account) {
_excludedFromReward[i] = _excludedFromReward[
_excludedFromReward.length - 1
];
_tBalances[account] = 0;
isExcludedFromReward[account] = false;
_excludedFromReward.pop();
break;
}
}
}
function excludeFromFee(address account) public onlyOwner {
isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
isExcludedFromFee[account] = false;
}
function withdrawTokens(
address tokenAddress,
address receiverAddress
) external onlyOwner returns (bool success) {
IERC20 tokenContract = IERC20(tokenAddress);
uint256 amount = tokenContract.balanceOf(address(this));
return tokenContract.transfer(receiverAddress, amount);
}
function withdrawStuckETH() public onlyOwner {
bool success;
(success, ) = address(msg.sender).call{value: address(this).balance}("");
}
function withdrawStuckTokens(address tkn) public onlyOwner {
require(IERC20(tkn).balanceOf(address(this)) > 0, "No tokens");
uint256 amount = IERC20(tkn).balanceOf(address(this));
IERC20(tkn).transfer(msg.sender, amount);
}
function enableTrading() external onlyOwner() {
require(!tradingActive, "Trading already active.");
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
_approve(address(this), address(uniswapV2Pair), _tTotalSupply);
IERC20(uniswapV2Pair).approve(
address(uniswapV2Router),
type(uint256).max
);
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
uint256 tokensInWallet = balanceOf(address(this));
uint256 tokensToAdd = tokensInWallet * 100 / 100; // 69% of tokens in contract go to LP
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
tokensToAdd,
0,
0,
owner(),
block.timestamp
);
tradingActive = true;
swapEnabled = true;
}
function _getRate() private view returns (uint256) {
uint256 rSupply = _rTotalSupply;
uint256 tSupply = _tTotalSupply;
uint256 nExcluded = _excludedFromReward.length;
for (uint256 i = 0; i < nExcluded; i++) {
rSupply = rSupply - _rBalances[_excludedFromReward[i]];
tSupply = tSupply - _tBalances[_excludedFromReward[i]];
}
if (rSupply < _rTotalSupply / _tTotalSupply) {
rSupply = _rTotalSupply;
tSupply = _tTotalSupply;
}
// rSupply always > tSupply (no precision loss)
uint256 rate = rSupply / tSupply;
return rate;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if (amount == 0) {
emit Transfer(from, to, 0);
return;
}
if (!tradingActive) {
require(
isExcludedFromFee[from] || isExcludedFromFee[to],
"ERC20: Trading is not active."
);
}
if (
marketingBalance > swapTokensAtAmount &&
!automatedMarketMakerPairs[from] &&
!isExcludedFromFee[from] &&
!isExcludedFromFee[to] &&
!swapping
) {
swapping = true;
_swapBack();
swapping = false;
}
uint256 _taxFee = 0;
uint256 _marketingTaxFee = 0;
// on buy
if (automatedMarketMakerPairs[from] && !isExcludedFromFee[to]) {
_taxFee = taxFee;
_marketingTaxFee = _marketingBuyTax;
if (_buyCount <= _reduceBuyTaxAt) {
_marketingTaxFee = _initialMarketingBuyTax;
}
if (amount >= _whaleThreshold) {
_marketingTaxFee = _antiWhaleBuyTax;
}
_buyCount++;
// on sell
} else if (automatedMarketMakerPairs[to] && !isExcludedFromFee[from]) {
_taxFee = taxFee;
_marketingTaxFee = _marketingSellTax;
if (_sellCount <= _reduceSellTaxAt) {
_marketingTaxFee = _initialMarketingSellTax;
}
if (amount >= _whaleThreshold) {
_marketingTaxFee = _antiWhaleSellTax;
}
_sellCount++;
}
if (isExcludedFromFee[from] || isExcludedFromFee[to]) {
_taxFee = 0;
_marketingTaxFee = 0;
}
// calc t-values
uint256 tTxFee = (amount * _taxFee) / 10000;
uint256 tMarketingFee = (amount * _marketingTaxFee) / 10000;
uint256 tTransferAmount = amount - tTxFee - tMarketingFee;
// calc r-values
uint256 rTxFee = (tTxFee + tMarketingFee) * _getRate();
uint256 rAmount = amount * _getRate();
uint256 rTransferAmount = rAmount - rTxFee;
if (tMarketingFee > 0) {
marketingBalance = marketingBalance + tMarketingFee;
_liquify(tMarketingFee);
emit Transfer(from, address(this), tMarketingFee);
}
if (isExcludedFromReward[from]) {
require(
_tBalances[from] >= amount,
"ERC20: transfer amount exceeds balance"
);
} else {
require(
_rBalances[from] >= rAmount,
"ERC20: transfer amount exceeds balance"
);
}
// Overflow not possible: the sum of all balances is capped by
// rTotalSupply and tTotalSupply, and the sum is preserved by
// decrementing then incrementing.
unchecked {
// udpate balances in r-space
_rBalances[from] -= rAmount;
_rBalances[to] += rTransferAmount;
// update balances in t-space
if (isExcludedFromReward[from] && isExcludedFromReward[to]) {
_tBalances[from] -= amount;
_tBalances[to] += tTransferAmount;
} else if (
isExcludedFromReward[from] && !isExcludedFromReward[to]
) {
// could technically underflow but because tAmount is a
// function of rAmount and _rTotalSupply == _tTotalSupply
// it won't
_tBalances[from] -= amount;
} else if (
!isExcludedFromReward[from] && isExcludedFromReward[to]
) {
// could technically overflow but because tAmount is a
// function of rAmount and _rTotalSupply == _tTotalSupply
// it won't
_tBalances[to] += tTransferAmount;
}
// reflect fee
// can never go below zero because rTxFee percentage of
// current _rTotalSupply
_rTotalSupply = _rTotalSupply - rTxFee;
totalFees += tTxFee;
}
emit Transfer(from, to, tTransferAmount);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_rTotalSupply += (MAX - (MAX % amount));
unchecked {
_rBalances[account] += _rTotalSupply;
}
emit Transfer(address(0), account, amount);
}
function _approve(
address account,
address spender,
uint256 amount
) internal virtual {
require(account != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[account][spender] = amount;
emit Approval(account, spender, amount);
}
function _spendAllowance(
address account,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(account, spender);
if (currentAllowance != type(uint256).max) {
require(
currentAllowance >= amount,
"ERC20: insufficient allowance"
);
unchecked {
_approve(account, spender, currentAllowance - amount);
}
}
}
function _liquify(uint256 tLiquidity) internal {
uint256 rLiquidity = tLiquidity * _getRate();
_rBalances[address(this)] += rLiquidity;
if (isExcludedFromReward[address(this)]) {
_tBalances[address(this)] += tLiquidity;
}
}
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);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function _swapBack() private {
uint256 contractBalance = balanceOf(address(this));
bool success;
if (contractBalance == 0) {
return;
}
if (contractBalance > swapTokensAtAmount * 20) {
contractBalance = swapTokensAtAmount * 20;
}
_swapTokensForEth(contractBalance);
(success, ) = address(marketingWallet).call{
value: address(this).balance
}("");
}
}