// File @openzeppelin/contracts/utils/Context.sol@v4.4.2
// 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;
}
}
// File @openzeppelin/contracts/access/Ownable.sol@v4.4.2
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;
/**
* @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 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);
}
}
// File @openzeppelin/contracts/token/ERC20/IERC20.sol@v4.4.2
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
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);
}
// File @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol@v4.4.2
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
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);
}
// File @openzeppelin/contracts/token/ERC20/ERC20.sol@v4.4.2
// OpenZeppelin Contracts v4.4.1 (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
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 updated 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 updated 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 updated 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
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `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
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `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 {}
}
// File @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol@v1.1.0-beta.0
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);
}
// File @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol@v1.1.0-beta.0
pragma solidity >=0.6.2;
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// File @uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol@v1.0.1
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
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(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File contracts/Main.sol
pragma solidity ^0.8.18;
//import "hardhat/console.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract PAWN is ERC20, Ownable {
string private _name = "PAWN";
string private _symbol = "PAWN";
bool public _isPublicLaunched = false;
uint256 private _supply = 1_000_000_000 ether;
uint256 public maxTxAmount = 1_000_000_000 ether;
uint256 public maxWalletAmount = 1_000_000_000 ether;
address public MarketingWallet = 0xDF05Ea01cd430145a7C9d855647c80Ef77cE56cb;
address public liquidityWallet = 0xDF05Ea01cd430145a7C9d855647c80Ef77cE56cb;
address public DEAD = 0x000000000000000000000000000000000000dEaD;
mapping(address => bool) public _isExcludedFromFee;
mapping(address => bool) public whitelist;
bool swapping = false;
// Taxes for whitelist
uint256 public taxForLiquidity = 50;
uint256 public taxforMarketing = 50;
function publicLaunch() public onlyOwner {
taxForLiquidity = 10;
taxforMarketing = 0;
maxTxAmount = 25000000 ether;
maxWalletAmount = 25000000 ether;
_isPublicLaunched = true;
}
IUniswapV2Router02 public immutable uniswapV2Router;
address public uniswapV2Pair;
uint256 public MarketingFunds;
uint256 public liquidityEthFunds;
uint256 public liquidityTokenFunds;
/**
* @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() ERC20(_name, _symbol) {
_mint(msg.sender, (_supply));
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
whitelist[owner()] = true;
whitelist[address(this)] = true;
_isExcludedFromFee[address(uniswapV2Router)] = true;
_isExcludedFromFee[msg.sender] = true;
_isExcludedFromFee[MarketingWallet] = true;
_isExcludedFromFee[address(this)] = true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* 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:
*
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
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 (!whitelist[from] && !whitelist[to]) {
if (to != uniswapV2Pair) {
require(amount <= maxTxAmount, "ERC20: transfer amount exceeds the max transaction amount");
require(
(amount + balanceOf(to)) <= maxWalletAmount,
"ERC20: balance amount exceeded max wallet amount limit"
);
}
}
uint256 transferAmount = amount;
if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
if ((from == uniswapV2Pair || to == uniswapV2Pair)) {
require(
_isPublicLaunched,
"Public Trading is not yet available"
);
uint256 totalTax = taxforMarketing + taxForLiquidity;
if (totalTax > 0) {
uint256 feeTokens = (amount * totalTax) / 100;
super._transfer(from, address(this), feeTokens);
transferAmount = amount - feeTokens;
if (
uniswapV2Pair == to &&
!whitelist[from] &&
!whitelist[to] &&
from != address(this) &&
!swapping
) {
swapping = true;
swapAndLiquify(totalTax);
swapping = false;
}
}
}
}
super._transfer(from, to, transferAmount);
}
function swapAndLiquify(uint256 totalTax) internal {
if (balanceOf(address(this)) == 0) {
return;
}
uint256 receivedETH;
uint256 MarketingTaxAmount;
uint256 liquidityTaxAmount;
{
uint256 contractTokenBalance = balanceOf(address(this));
MarketingTaxAmount =
(contractTokenBalance * taxforMarketing) /
totalTax;
liquidityTaxAmount =
(contractTokenBalance * taxForLiquidity) /
totalTax;
uint256 beforeBalance = address(this).balance;
if (liquidityTaxAmount > 0) {
_swapTokensForEth(liquidityTaxAmount / 2, 0);
receivedETH = address(this).balance - beforeBalance;
liquidityEthFunds += receivedETH;
liquidityTokenFunds +=
liquidityTaxAmount -
(liquidityTaxAmount / 2);
}
if (MarketingTaxAmount > 0) {
beforeBalance = address(this).balance;
_swapTokensForEth(MarketingTaxAmount, 0);
receivedETH = address(this).balance - beforeBalance;
MarketingFunds += receivedETH;
}
}
}
/**
* @dev Transfers Marketing ETH Funds to Marketing Wallet
*/
function withdrawMarketing() external onlyOwner returns (bool) {
payable(MarketingWallet).transfer(MarketingFunds);
MarketingFunds = 0;
return true;
}
/**
* @dev Transfers Liquidity Funds (ETH + TOKENS) to Liquidity Wallet
*/
function withdrawLiquidity() public onlyOwner returns (bool) {
payable(liquidityWallet).transfer(liquidityEthFunds);
IERC20(address(this)).transfer(liquidityWallet, liquidityTokenFunds);
liquidityEthFunds = 0;
liquidityTokenFunds = 0;
return true;
}
/**
* @dev Excludes an address from Fees
*
* @param _address address to be exempt from fee
* @param _status address fee status
*/
function excludeFromFee(address _address, bool _status) external onlyOwner {
_isExcludedFromFee[_address] = _status;
}
/**
* @dev Excludes batch of addresses from Fees
*
* @param _address Array of addresses to be exempt from fee
* @param _status Addresses fee status
*/
function ExcludeFromFee(
address[] memory _address,
bool _status
) external onlyOwner {
address[] memory addresses = _address;
for (uint i; i < addresses.length; i++) {
_isExcludedFromFee[addresses[i]] = _status;
}
}
/**
* @dev Adds and address to Whitelist
*
* @param _address address to be added
* @param status address whitelist status
*/
function addToWhitelist(address _address, bool status) external onlyOwner {
whitelist[_address] = status;
}
/**
* @dev Adds batch of addresses to Whitelist
*
* @param _address Array of addresses to be added to whitelist
* @param _status Addresses Whitelist status
*/
function Whitelist(
address[] memory _address,
bool _status
) external onlyOwner {
address[] memory addresses = _address;
for (uint i; i < addresses.length; i++) {
whitelist[addresses[i]] = _status;
}
}
/**
* @dev Swaps Token Amount to ETH
*
* @param tokenAmount Token Amount to be swapped
* @param tokenAmountOut Expected ETH amount out of swap
*/
function _swapTokensForEth(
uint256 tokenAmount,
uint256 tokenAmountOut
) internal {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
IERC20(address(this)).approve(
address(uniswapV2Router),
type(uint256).max
);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
tokenAmountOut,
path,
address(this),
block.timestamp
);
}
/**
* @dev Calculates amount of ETH to be receieved from Swap Transaction
*
* @param _tokenAmount Token Amount to be used for swap
*/
function _getETHAmountsOut(
uint256 _tokenAmount
) internal view returns (uint256) {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
uint256[] memory amountOut = uniswapV2Router.getAmountsOut(
_tokenAmount,
path
);
return amountOut[1];
}
/**
* @dev Updates Token LP pair
*
* @param _pair Token LP Pair address
*/
function updatePair(address _pair) external onlyOwner {
require(_pair != DEAD, "LP Pair cannot be the Dead wallet!");
require(_pair != address(0), "LP Pair cannot be 0!");
uniswapV2Pair = _pair;
}
/**
* @dev Updates Marketing wallet address
*
* @param _newWallet Marketing wallet address
*/
function updateMarketingWallet(
address _newWallet
) public onlyOwner returns (bool) {
require(
_newWallet != DEAD,
"Marketing Wallet cannot be the Dead wallet!"
);
require(_newWallet != address(0), "Marketing Wallet cannot be 0!");
MarketingWallet = _newWallet;
return true;
}
/**
* @dev Updates Liquidity wallet address
*
* @param _newWallet Liquidity wallet address
*/
function updateLiquidityWallet(
address _newWallet
) public onlyOwner returns (bool) {
require(
_newWallet != DEAD,
"Marketing Wallet cannot be the Dead wallet!"
);
require(_newWallet != address(0), "Marketing Wallet cannot be 0!");
liquidityWallet = _newWallet;
return true;
}
/**
* @dev Updates the tax fee for both Early Wallet Status and Marketing
* @param _taxForLiquidity Early Wallet Tax fee
* @param _taxforMarketing Marketing Tax fee
*/
function updateTaxForLiquidityAndMarketing(
uint256 _taxForLiquidity,
uint256 _taxforMarketing
) public onlyOwner returns (bool) {
require(
_taxForLiquidity <= 15,
"Liquidity Tax cannot be more than 15%"
);
require(
_taxforMarketing <= 15,
"Marketing Tax cannot be more than 15%"
);
taxForLiquidity = _taxForLiquidity;
taxforMarketing = _taxforMarketing;
return true;
}
/**
* @dev Updates maximum transaction amount for wallet
*
* @param _maxTxAmount Maximum transaction amount
*/
function updateMaxTxAmount(
uint256 _maxTxAmount
) public onlyOwner returns (bool) {
uint256 maxValue = (_supply * 10) / 100;
uint256 minValue = (_supply * 1) / 200;
require(
_maxTxAmount <= maxValue,
"Cannot set maxTxAmount to more than 10% of the supply"
);
require(
_maxTxAmount >= minValue,
"Cannot set maxTxAmount to less than .5% of the supply"
);
maxTxAmount = _maxTxAmount;
return true;
}
/**
* @dev Updates Maximum Amount of tokens a wallet can hold
*
* @param _maxWalletAmount Maximum Amount of Tokens a wallet can hold
*/
function updateMaxWalletAmount(
uint256 _maxWalletAmount
) public onlyOwner returns (bool) {
uint256 maxValue = (_supply * 10) / 100;
uint256 minValue = (_supply * 1) / 200;
require(
_maxWalletAmount <= maxValue,
"Cannot set maxWalletAmount to more than 10% of the supply"
);
require(
_maxWalletAmount >= minValue,
"Cannot set maxWalletAmount to less than .5% of the supply"
);
maxWalletAmount = _maxWalletAmount;
return true;
}
function withdrawETH() external onlyOwner {
(bool success,) = address(MarketingWallet).call{value : address(this).balance}("");
require(success);
MarketingFunds = 0;
liquidityEthFunds = 0;
}
function withdrawTokens(address token) external onlyOwner {
IERC20(token).transfer(
MarketingWallet,
IERC20(token).balanceOf(address(this))
);
if (token == address(this)) {
liquidityTokenFunds = 0;
}
}
receive() external payable {}
}
// File contracts/testFlatten.sol
{
"compilationTarget": {
"PAWN.sol": "PAWN"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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bility":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxForLiquidity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxforMarketing","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newWallet","type":"address"}],"name":"updateLiquidityWallet","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newWallet","type":"address"}],"name":"updateMarketingWallet","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxTxAmount","type":"uint256"}],"name":"updateMaxTxAmount","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxWalletAmount","type":"uint256"}],"name":"updateMaxWalletAmount","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_pair","type":"address"}],"name":"updatePair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_taxForLiquidity","type":"uint256"},{"internalType":"uint256","name":"_taxforMarketing","type":"uint256"}],"name":"updateTaxForLiquidityAndMarketing","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelist","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawLiquidity","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawMarketing","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"withdrawTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]