// Contract has been created by <DEVAI> a Telegram AI bot. Visit https://t.me/ContractDevAI
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
interface IERC20 {
/**
* @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 `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(
address recipient,
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 `sender` to `recipient` 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 sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @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
);
}
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);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(
address account
) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(
address owner,
address spender
) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(
address spender,
uint256 amount
) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the upd allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
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,
"ERC20: transfer amount exceeds allowance"
);
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the upd allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the upd allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(
senderBalance >= amount,
"ERC20: transfer amount exceeds balance"
);
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes burning.
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
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 Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
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);
}
}
interface IDexFactory {
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 IDexPair {
function sync() external;
}
interface IDexRouter {
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 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 PACAN is ERC20, Ownable {
using SafeMath for uint256;
IDexRouter private immutable dexRouter;
address public immutable dexPair;
address private newOwner = 0xf88546967401d75801793785dD1a6b1181814482;
// Swapback
bool private swapping;
bool private swapbackEnabled = false;
uint256 private swapBackValueMin;
uint256 private swapBackValueMax;
//Anti-whale
bool private limitsInEffect = true;
bool private trasnferDelayEnabled = true;
uint256 private maxWallet;
uint256 private maxTx;
mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch
bool public tradingOn = false;
// burn
bool private burnEnabled = true;
uint256 private lastSync = 0;
// Fee receivers
address private autoLPReceiver;
address private mktReceiver;
address private devReceiver;
uint256 private totalBuyFee;
uint256 private buyMktFee;
uint256 private buyLPFee;
uint256 private buyDevFee;
uint256 private totalSellFee;
uint256 private sellMktFee;
uint256 private sellLpFee;
uint256 private sellDevFee;
uint256 private totalTransferFee;
uint256 private transferMktFee;
uint256 private transferLpFee;
uint256 private transferDevFee;
uint256 private tokensForMarketing;
uint256 private tokensForLiquidity;
uint256 private tokensForDev;
/******************/
// exlcude from fees and max transaction amount
mapping(address => bool) private isFeeExempt;
mapping(address => bool) private isTxLimitExempt;
mapping(address => bool) private automatedMarketMakerPairs;
// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
event UpdateUniswapV2Router(
address indexed newAddress,
address indexed oldAddress
);
event ExcludeFromFees(address indexed account, bool isExcluded);
event ExcludeFromLimits(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event TradingEnabled(uint256 indexed timestamp);
event LimitsRemoved(uint256 indexed timestamp);
event DisabledTransferDelay(uint256 indexed timestamp);
event SwapbackSettingsUpdated(
bool enabled,
uint256 swapBackValueMin,
uint256 swapBackValueMax
);
event MaxTxUpdated(uint256 maxTx);
event MaxWalletUpdated(uint256 maxWallet);
event mktReceiverUpdated(
address indexed newWallet,
address indexed oldWallet
);
event devReceiverUpdated(
address indexed newWallet,
address indexed oldWallet
);
event lpReceiverUpdated(
address indexed newWallet,
address indexed oldWallet
);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event BuyFeeUpdated(
uint256 totalBuyFee,
uint256 buyMktFee,
uint256 buyLPFee,
uint256 buyDevFee
);
event SellFeeUpdated(
uint256 totalSellFee,
uint256 sellMktFee,
uint256 sellLpFee,
uint256 sellDevFee
);
event TransferFeeUpdated(
uint256 totalTransferFee,
uint256 transferMktFee,
uint256 transferLpFee,
uint256 transferDevFee
);
constructor() ERC20("SLOVO PACANA", "PACAN") {
IDexRouter _dexRouter = IDexRouter(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
lastSync = block.timestamp;
excludeFromMaxTransaction(address(_dexRouter), true);
dexRouter = _dexRouter;
dexPair = IDexFactory(_dexRouter.factory()).createPair(
address(this),
_dexRouter.WETH()
);
excludeFromMaxTransaction(address(dexPair), true);
_setAutomatedMarketMakerPair(address(dexPair), true);
uint256 _buyMktFee = 0;
uint256 _buyLPFee = 0;
uint256 _buyDevFee = 0;
uint256 _sellMktFee = 5;
uint256 _sellLpFee = 0;
uint256 _sellDevFee = 0;
uint256 _transferMktFee = 0;
uint256 _transferLpFee = 0;
uint256 _transferDevFee = 0;
uint256 totalSupply = 1000000000 * 10 ** decimals();
maxTx = (totalSupply * 1000) / 1000;
maxWallet = (totalSupply * 1000) / 1000;
swapBackValueMin = (totalSupply * 2) / 1000;
swapBackValueMax = (totalSupply * 100) / 100;
buyMktFee = _buyMktFee;
buyLPFee = _buyLPFee;
buyDevFee = _buyDevFee;
totalBuyFee = buyMktFee + buyLPFee + buyDevFee;
sellMktFee = _sellMktFee;
sellLpFee = _sellLpFee;
sellDevFee = _sellDevFee;
totalSellFee = sellMktFee + sellLpFee + sellDevFee;
transferMktFee = _transferMktFee;
transferLpFee = _transferLpFee;
transferDevFee = _transferDevFee;
totalTransferFee = transferMktFee + transferLpFee + transferDevFee;
mktReceiver = address(0x81c336CFDE9275C6278DF3672fB8d0c329a77dEc);
devReceiver = address(0x81c336CFDE9275C6278DF3672fB8d0c329a77dEc);
autoLPReceiver = address(0x000000000000000000000000000000000000dEaD);
// exclude from paying fees or having max transaction amount
excludeFromFees(newOwner, true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromMaxTransaction(newOwner, true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(0xdead), true);
excludeFromMaxTransaction(autoLPReceiver, true);
transferOwnership(newOwner);
/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(newOwner, totalSupply);
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @notice Information about the swapback settings
* @return _swapbackEnabled if swapback is enabled
* @return _swapBackValueMin the minimum amount of tokens in the contract balance to trigger swapback
* @return _swapBackValueMax the maximum amount of tokens in the contract balance to trigger swapback
*/
function swapbackInfo()
external
view
returns (
bool _swapbackEnabled,
uint256 _swapBackValueMin,
uint256 _swapBackValueMax
)
{
_swapbackEnabled = swapbackEnabled;
_swapBackValueMin = swapBackValueMin;
_swapBackValueMax = swapBackValueMax;
}
/**
* @notice Information about the anti whale parameters
* @return _limitsInEffect if the wallet limits are in effect
* @return _trasnferDelayEnabled if the transfer delay is enabled
* @return _maxWallet The maximum amount of tokens that can be held by a wallet
* @return _maxTx The maximum amount of tokens that can be bought or sold in a single transaction
*/
function antiWhaleInfo()
external
view
returns (
bool _limitsInEffect,
bool _trasnferDelayEnabled,
uint256 _maxWallet,
uint256 _maxTx
)
{
_limitsInEffect = limitsInEffect;
_trasnferDelayEnabled = trasnferDelayEnabled;
_maxWallet = maxWallet;
_maxTx = maxTx;
}
/**
* @notice The wallets that receive the collected fees
* @return _autoLPReceiver The wallet that receives the LP fees
* @return _mktReceiver The wallet that receives the marketing fees
* @return _devReceiver The wallet that receives the dev fees
*/
function feeReceivers()
external
view
returns (
address _autoLPReceiver,
address _mktReceiver,
address _devReceiver
)
{
return (autoLPReceiver, mktReceiver, devReceiver);
}
/**
* @notice Fees for buys, sells, and transfers
* @return _totalBuyFee The total fee for buys
* @return _buyMktFee The fee for buys that gets sent to marketing
* @return _buyLPFee The fee for buys that gets sent to LP
* @return _buyDevFee The fee for buys that gets sent to dev
* @return _totalSellFee The total fee for sells
* @return _sellMktFee The fee for sells that gets sent to marketing
* @return _sellLpFee The fee for sells that gets sent to LP
* @return _sellDevFee The fee for sells that gets sent to dev
* @return _totalTransferFee The total fee for transfers
* @return _transferMktFee The fee for transfers that gets sent to marketing
* @return _transferLpFee The fee for transfers that gets sent to LP
* @return _transferDevFee The fee for transfers that gets sent to dev
*/
function feeRates()
external
view
returns (
uint256 _totalBuyFee,
uint256 _buyMktFee,
uint256 _buyLPFee,
uint256 _buyDevFee,
uint256 _totalSellFee,
uint256 _sellMktFee,
uint256 _sellLpFee,
uint256 _sellDevFee,
uint256 _totalTransferFee,
uint256 _transferMktFee,
uint256 _transferLpFee,
uint256 _transferDevFee
)
{
_totalBuyFee = totalBuyFee;
_buyMktFee = buyMktFee;
_buyLPFee = buyLPFee;
_buyDevFee = buyDevFee;
_totalSellFee = totalSellFee;
_sellMktFee = sellMktFee;
_sellLpFee = sellLpFee;
_sellDevFee = sellDevFee;
_totalTransferFee = totalTransferFee;
_transferMktFee = transferMktFee;
_transferLpFee = transferLpFee;
_transferDevFee = transferDevFee;
}
/**
* @notice If the wallet is excluded from fees and max transaction amount and if the wallet is a automated market maker pair
* @param _target The wallet to check
* @return _isFeeExempt If the wallet is excluded from fees
* @return _isTxLimitExempt If the wallet is excluded from max transaction amount
* @return _automatedMarketMakerPairs If the wallet is a automated market maker pair
*/
function checkAddressPermissions(
address _target
)
external
view
returns (
bool _isFeeExempt,
bool _isTxLimitExempt,
bool _automatedMarketMakerPairs
)
{
_isFeeExempt = isFeeExempt[_target];
_isTxLimitExempt = isTxLimitExempt[_target];
_automatedMarketMakerPairs = automatedMarketMakerPairs[_target];
}
/**
* @notice Information related to the burn function
* @return _burnEnabled If burn is enabled
* @return _lastSync The last time burn was called
*/
function burnInfo() external view returns (bool _burnEnabled, uint256 _lastSync) {
_burnEnabled = burnEnabled;
_lastSync = lastSync;
}
receive() external payable {}
/**
* @notice Opens public trading for the token
* @dev onlyOwner.
*/
function enableTrading() external onlyOwner {
tradingOn = true;
swapbackEnabled = true;
emit TradingEnabled(block.timestamp);
}
/**
* @notice Removes the max wallet and max transaction limits
* @dev onlyOwner.
* Emits an {LimitsRemoved} event
*/
function removeLimits() external onlyOwner {
limitsInEffect = false;
emit LimitsRemoved(block.timestamp);
}
/**
* @notice Removes the transfer delay
* @dev onlyOwner.
* Emits an {DisabledTransferDelay} event
*/
function disableTransferDelay() external onlyOwner {
trasnferDelayEnabled = false;
emit DisabledTransferDelay(block.timestamp);
}
/**
* @notice sets if swapback is enabled and sets the minimum and maximum amounts
* @dev onlyOwner.
* Emits an {SwapbackSettingsUpdated} event
* @param _enabled If swapback is enabled
* @param _min The minimum amount of tokens the contract must have before swapping tokens for ETH. Base 10000, so 1% = 100.
* @param _max The maximum amount of tokens the contract can swap for ETH. Base 10000, so 1% = 100.
*/
function setSwapBackSettings(
bool _enabled,
uint256 _min,
uint256 _max
) external onlyOwner {
require(
_min >= 1,
"Swap amount cannot be lower than 0.01% total supply."
);
require(_max >= _min, "maximum amount cant be higher than minimum");
swapbackEnabled = _enabled;
swapBackValueMin = (totalSupply() * _min) / 10000;
swapBackValueMax = (totalSupply() * _max) / 10000;
emit SwapbackSettingsUpdated(_enabled, _min, _max);
}
/**
* @notice Changes the maximum amount of tokens that can be bought or sold in a single transaction
* @dev onlyOwner.
* Emits an {MaxTxUpdated} event
* @param newNum Base 1000, so 1% = 10
*/
function setTxLimit(uint256 newNum) external onlyOwner {
require(newNum >= 1, "Cannot set maxTx lower than 0.1%");
maxTx = (newNum * totalSupply()) / 1000;
emit MaxTxUpdated(maxTx);
}
/**
* @notice Changes the maximum amount of tokens a wallet can hold
* @dev onlyOwner.
* Emits an {MaxWalletUpdated} event
* @param newNum Base 1000, so 1% = 10
*/
function setWalletLimit(uint256 newNum) external onlyOwner {
require(newNum >= 5, "Cannot set maxWallet lower than 0.5%");
maxWallet = (newNum * totalSupply()) / 1000;
emit MaxWalletUpdated(maxWallet);
}
/**
* @notice Sets if a wallet is excluded from the max wallet and tx limits
* @dev onlyOwner.
* Emits an {ExcludeFromLimits} event
* @param updAds The wallet to update
* @param isEx If the wallet is excluded or not
*/
function excludeFromMaxTransaction(
address updAds,
bool isEx
) public onlyOwner {
isTxLimitExempt[updAds] = isEx;
emit ExcludeFromLimits(updAds, isEx);
}
/**
* @notice Sets the fees for buys
* @dev onlyOwner.
* Emits a {BuyFeeUpdated} event
* All fees added up must be less than 60
* @param _marketingFee The fee for the marketing wallet
* @param _liquidityFee The fee for the liquidity pool
* @param _devFee The fee for the dev wallet
*/
function setBuyFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
buyMktFee = _marketingFee;
buyLPFee = _liquidityFee;
buyDevFee = _devFee;
totalBuyFee = buyMktFee + buyLPFee + buyDevFee;
require(totalBuyFee <= 60, "Total buy fee cannot be higher than 60%");
emit BuyFeeUpdated(totalBuyFee, buyMktFee, buyLPFee, buyDevFee);
}
/**
* @notice Sets the fees for sells
* @dev onlyOwner.
* Emits a {SellFeeUpdated} event
* All fees added up must be less than 60
* @param _marketingFee The fee for the marketing wallet
* @param _liquidityFee The fee for the liquidity pool
* @param _devFee The fee for the dev wallet
*/
function setSellFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
sellMktFee = _marketingFee;
sellLpFee = _liquidityFee;
sellDevFee = _devFee;
totalSellFee = sellMktFee + sellLpFee + sellDevFee;
require(
totalSellFee <= 60,
"Total sell fee cannot be higher than 60%"
);
emit SellFeeUpdated(totalSellFee, sellMktFee, sellLpFee, sellDevFee);
}
/**
* @notice Sets the fees for transfers
* @dev onlyOwner.
* Emits a {TransferFeeUpdated} event
* All fees added up must be less than 60
* @param _marketingFee The fee for the marketing wallet
* @param _liquidityFee The fee for the liquidity pool
* @param _devFee The fee for the dev wallet
*/
function setTransferFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
transferMktFee = _marketingFee;
transferLpFee = _liquidityFee;
transferDevFee = _devFee;
totalTransferFee = transferMktFee + transferLpFee + transferDevFee;
require(
totalTransferFee <= 60,
"Total transfer fee cannot be higher than 60%"
);
emit TransferFeeUpdated(
totalTransferFee,
transferMktFee,
transferLpFee,
transferDevFee
);
}
/**
* @notice Sets if an address is excluded from fees
* @dev onlyOwner.
* Emits an {ExcludeFromFees} event
* @param account The wallet to update
* @param excluded If the wallet is excluded or not
*/
function excludeFromFees(address account, bool excluded) public onlyOwner {
isFeeExempt[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
/**
* @notice Sets an address as a new liquidity pair. You probably dont want to do this.
* @dev onlyOwner.
* Emits a {SetAutomatedMarketMakerPair} event
* @param pair the address of the pair
* @param value If the pair is a automated market maker pair or not
*/
function setAutomatedMarketMakerPair(
address pair,
bool value
) public onlyOwner {
require(
pair != dexPair,
"The pair cannot be removed from automatedMarketMakerPairs"
);
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
/**
* @notice Sets the marketing wallet
* @dev onlyOwner.
* Emits an {mktReceiverUpdated} event
* @param newWallet The new marketing wallet
*/
function setMarketingWallet(address newWallet) external onlyOwner {
emit mktReceiverUpdated(newWallet, mktReceiver);
mktReceiver = newWallet;
}
/**
* @notice Sets the LP receiver
* @dev onlyOwner.
* Emits an {lpReceiverUpdated} event
* @param newWallet The new dev wallet
*/
function setLPWallet(address newWallet) external onlyOwner {
emit lpReceiverUpdated(newWallet, autoLPReceiver);
autoLPReceiver = newWallet;
}
/**
* @notice Sets the dev wallet
* @dev onlyOwner.
* Emits an {devReceiverUpdated} event
* @param newWallet The new dev wallet
*/
function setDevWallet(address newWallet) external onlyOwner {
emit devReceiverUpdated(newWallet, devReceiver);
devReceiver = newWallet;
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
if (limitsInEffect) {
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping
) {
if (!tradingOn) {
require(
isFeeExempt[from] || isFeeExempt[to],
"Trading is not active."
);
}
// at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
if (trasnferDelayEnabled) {
if (
to != owner() &&
to != address(dexRouter) &&
to != address(dexPair)
) {
require(
_holderLastTransferTimestamp[tx.origin] <
block.number,
"_transfer:: Transfer Delay enabled. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
//when buy
if (automatedMarketMakerPairs[from] && !isTxLimitExempt[to]) {
require(
amount <= maxTx,
"Buy transfer amount exceeds the maxTx."
);
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
//when sell
else if (
automatedMarketMakerPairs[to] && !isTxLimitExempt[from]
) {
require(
amount <= maxTx,
"Sell transfer amount exceeds the maxTx."
);
} else if (!isTxLimitExempt[to]) {
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapBackValueMin;
if (
canSwap &&
swapbackEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!isFeeExempt[from] &&
!isFeeExempt[to]
) {
swapping = true;
swapBack();
swapping = false;
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if (isFeeExempt[from] || isFeeExempt[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if (takeFee) {
// on sell
if (automatedMarketMakerPairs[to] && totalSellFee > 0) {
fees = amount.mul(totalSellFee).div(100);
tokensForLiquidity += (fees * sellLpFee) / totalSellFee;
tokensForDev += (fees * sellDevFee) / totalSellFee;
tokensForMarketing += (fees * sellMktFee) / totalSellFee;
}
// on buy
else if (automatedMarketMakerPairs[from] && totalBuyFee > 0) {
fees = amount.mul(totalBuyFee).div(100);
tokensForLiquidity += (fees * buyLPFee) / totalBuyFee;
tokensForDev += (fees * buyDevFee) / totalBuyFee;
tokensForMarketing += (fees * buyMktFee) / totalBuyFee;
}
// on transfer
else if (totalTransferFee > 0) {
fees = amount.mul(totalTransferFee).div(100);
tokensForLiquidity += (fees * transferLpFee) / totalTransferFee;
tokensForDev += (fees * transferDevFee) / totalTransferFee;
tokensForMarketing +=
(fees * transferMktFee) /
totalTransferFee;
}
if (fees > 0) {
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
_approve(address(this), address(dexRouter), tokenAmount);
// make the swap
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(dexRouter), tokenAmount);
// add the liquidity
dexRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
autoLPReceiver,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity +
tokensForMarketing +
tokensForDev;
bool success;
if (contractBalance == 0) {
return;
}
if (contractBalance > swapBackValueMax) {
contractBalance = swapBackValueMax;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /
totalTokensToSwap /
2;
uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance.sub(initialETHBalance);
uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(
totalTokensToSwap
);
uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);
uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev;
tokensForLiquidity = 0;
tokensForMarketing = 0;
tokensForDev = 0;
(success, ) = address(devReceiver).call{value: ethForDev}("");
if (liquidityTokens > 0 && ethForLiquidity > 0) {
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(
amountToSwapForETH,
ethForLiquidity,
tokensForLiquidity
);
}
(success, ) = address(mktReceiver).call{value: address(this).balance}(
""
);
}
}
{
"compilationTarget": {
"PACAN.sol": "PACAN"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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