pragma solidity ^0.8.10;
// SPDX-License-Identifier: MIT
// Developed by: jawadklair
interface IERC20 {
/**
* @dev Returns the total tokens supply
*/
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);
}
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @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;
}
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data; // msg.data is used to handle array, bytes, string
}
}
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
/**
* @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.
*/
contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
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 Returns the address of the current owner.
*/
function owner() public view 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() external virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = 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) external virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function getUnlockTime() external view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) external virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function unlock() external virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(block.timestamp > _lockTime , "Contract is locked until 7 days");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
_previousOwner = address(0);
}
}
// pragma solidity >=0.5.0;
interface IUniSwapFactory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
}
// pragma solidity >=0.6.2;
interface IUniSwapRouter {
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 swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
contract METAPETS is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _tOwned; // total Owned tokens
mapping (address => mapping (address => uint256)) private _allowances; // allowed allowance for spender
mapping (address => bool) public isExcludedFromAntiWhale; // Limits how many tokens can an address hold
mapping (address => bool) public isExcludedFromFee; // excluded address from all fee
mapping (address => uint256) private _transactionCheckpoint;
mapping(address => bool) public isExcludedFromTransactionCoolDown; // Address to be excluded from transaction cooldown
uint256 private _transactionCoolTime = 120; //Cool down time between each transaction per address
mapping (address => bool) public isBlacklisted; // blocks an address from buy and selling
address payable public maintainanceAddress = payable(0x71d2EBB87c1b8be5d7527b55c63e27312494D361); // Maintainance Address
address payable public developmentAddress = payable(0x57C7CB16A480232CC479D85A3c962e826FA0f3C3); // Development Address
address payable public marketingAddress = payable(0x80F37688dD7850ac3B5884066C03897d9fF5cA0c); // Marketing Address
string private _name = "Meta Pets"; //token name
string private _symbol = "$MP"; // token symbol
uint8 private _decimals = 18; // 1 token can be divided into 1e_decimals parts
uint256 private _tTotal = 1000000 * 10**6 * 10**_decimals;
// All fees are with one decimal value. so if you want 0.5 set value to 5, for 10 set 100. so on...
// Below Fees to be deducted and sent as ETH
uint256 public liquidityFee = 20; // actual liquidity fee 2%
uint256 public marketingFee = 60; // marketing fee 6%
uint256 public developmentFee = 30; // development fee 3%
uint256 public maintainanceFee = 10; // Project Maintainance fee 1%
uint256 public sellExtraFee = 20; // extra fee on sell 2%.
uint256 private _totalFee =liquidityFee.add(marketingFee).add(developmentFee).add(maintainanceFee); // Liquidity + Marketing + Development + Mainitainance fee on each transaction
uint256 private _previousTotalFee = _totalFee; // restore old fees
bool public antiBotEnabled = true; //enables anti bot restrictions(max txn amount, max wallet holding transaction cooldown)
IUniSwapRouter public uniSwapRouter; // uniSwap router assiged using address
address public uniSwapPair; // for creating WETH pair with our token
bool inSwapAndLiquify; // after each successfull swapandliquify disable the swapandliquify
bool public swapAndLiquifyEnabled = true; // set auto swap to ETH and liquify collected liquidity fee
uint256 public maxTxnAmount = 1000 * 10**6 * 10**_decimals; // max allowed tokens tranfer per transaction
uint256 public minTokensSwapToAndTransferTo = 500 * 10**6 * 10**_decimals; // min token liquidity fee collected before swapandLiquify
uint256 public maxTokensPerAddress = 2000 * 10**6 * 10**_decimals; // Max number of tokens that an address can hold
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap); //event fire min token liquidity fee collected before swapandLiquify
event SwapAndLiquifyEnabledUpdated(bool enabled); // event fire set auto swap to ETH and liquify collected liquidity fee
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqiudity
); // fire event how many tokens were swapedandLiquified
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
} // modifier to after each successfull swapandliquify disable the swapandliquify
constructor () {
_tOwned[_msgSender()] = _tTotal; // assigning the max token to owner's address
IUniSwapRouter _uniSwapRouter = IUniSwapRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
// Create a uniSwap pair for this new token
uniSwapPair = IUniSwapFactory(_uniSwapRouter.factory())
.createPair(address(this), _uniSwapRouter.WETH());
// set the rest of the contract variables
uniSwapRouter = _uniSwapRouter;
//exclude owner and this contract from fee
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
isExcludedFromFee[marketingAddress] = true;
isExcludedFromFee[developmentAddress] = true;
isExcludedFromFee[maintainanceAddress] = true;
//Exclude's below addresses from per account tokens limit
isExcludedFromAntiWhale[owner()] = true;
isExcludedFromAntiWhale[uniSwapPair] = true;
isExcludedFromAntiWhale[address(this)] = true;
isExcludedFromAntiWhale[marketingAddress] = true;
isExcludedFromAntiWhale[developmentAddress] = true;
isExcludedFromAntiWhale[maintainanceAddress] = true;
isExcludedFromAntiWhale[address(_uniSwapRouter)] = true;
//Exclude's below addresses from transaction cooldown
isExcludedFromTransactionCoolDown[owner()] = true;
isExcludedFromTransactionCoolDown[uniSwapPair] = true;
isExcludedFromTransactionCoolDown[address(this)] = true;
isExcludedFromTransactionCoolDown[marketingAddress] = true;
isExcludedFromTransactionCoolDown[developmentAddress] = true;
isExcludedFromTransactionCoolDown[maintainanceAddress] = true;
isExcludedFromTransactionCoolDown[address(_uniSwapRouter)] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _tOwned[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev approves allowance of a spender
*/
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev transfers from a sender to receipent with subtracting spenders allowance with each successfull transfer
*/
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev approves allowance of a spender should set it to zero first than increase
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev decrease allowance of spender that it can spend on behalf of owner
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev exclude an address from fee
*/
function excludeFromFee(address account) external onlyOwner {
isExcludedFromFee[account] = true;
}
/**
* @dev include an address for fee
*/
function includeInFee(address account) external onlyOwner {
isExcludedFromFee[account] = false;
}
/**
* @dev exclude an address from per address tokens limit
*/
function excludedFromAntiWhale(address account) external onlyOwner {
isExcludedFromAntiWhale[account] = true;
}
/**
* @dev include an address in per address tokens limit
*/
function includeInAntiWhale(address account) external onlyOwner {
isExcludedFromAntiWhale[account] = false;
}
/**
* @dev set's Development fee percentage
*/
function setDevelopmentFeePercent(uint256 Fee) external onlyOwner {
developmentFee = Fee;
_totalFee = liquidityFee.add(marketingFee).add(developmentFee).add(maintainanceFee);
}
/**
* @dev set's marketing fee percentage
*/
function setMarketingFeePercent(uint256 Fee) external onlyOwner {
marketingFee = Fee;
_totalFee = liquidityFee.add(marketingFee).add(developmentFee).add(maintainanceFee);
}
/**
* @dev set's Maintainance fee percentage
*/
function setMaintainanceFeePercent(uint256 Fee) external onlyOwner {
maintainanceFee = Fee;
_totalFee = liquidityFee.add(marketingFee).add(developmentFee).add(maintainanceFee);
}
/**
* @dev set's liquidity fee percentage
*/
function setLiquidityFeePercent(uint256 Fee) external onlyOwner {
liquidityFee = Fee;
_totalFee = liquidityFee.add(marketingFee).add(developmentFee).add(maintainanceFee);
}
/**
* @dev set's sell extra fee percentage
*/
function setSellExtraFeePercent(uint256 Fee) external onlyOwner {
sellExtraFee = Fee;
}
/**
* @dev set's max amount of tokens percentage
* that can be transfered in each transaction from an address
*/
function setMaxTxnTokens(uint256 maxTxnTokens) external onlyOwner {
maxTxnAmount = maxTxnTokens.mul( 10**_decimals );
}
/**
* @dev set's max amount of tokens
* that an address can hold
*/
function setMaxTokenPerAddress(uint256 maxTokens) external onlyOwner {
maxTokensPerAddress = maxTokens.mul( 10**_decimals );
}
/**
* @dev set's minimmun amount of tokens required
* before swaped and ETH send to wallet
* same value will be used for auto swapandliquifiy threshold
*/
function setMinTokensSwapAndTransfer(uint256 minAmount) external onlyOwner {
minTokensSwapToAndTransferTo = minAmount.mul( 10 ** _decimals);
}
/**
* @dev set's marketing address
*/
function setMarketingFeeAddress(address payable wallet) external onlyOwner {
marketingAddress = wallet;
}
/**
* @dev set's development address
*/
function setDevelopmentFeeAddress(address payable wallet) external onlyOwner {
developmentAddress = wallet;
}
/**
* @dev set's maintainnance address
*/
function setMaintainaceFeeAddress(address payable wallet) external onlyOwner {
maintainanceAddress = wallet;
}
/**
* @dev set's auto SwapandLiquify when contract's token balance threshold is reached
*/
function setSwapAndLiquifyEnabled(bool _enabled) external onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
/**
* @dev Sets transactions on time periods or cooldowns. Buzz Buzz Bots.
* Can only be set by owner set in seconds.
*/
function setTransactionCooldownTime(uint256 transactiontime) external onlyOwner {
_transactionCoolTime = transactiontime;
}
/**
* @dev Exclude's an address from transactions from cooldowns.
* Can only be set by owner.
*/
function excludedFromTransactionCooldown(address account) external onlyOwner {
isExcludedFromTransactionCoolDown[account] = true;
}
/**
* @dev Include's an address in transactions from cooldowns.
* Can only be set by owner.
*/
function includeInTransactionCooldown(address account) external onlyOwner {
isExcludedFromTransactionCoolDown[account] = false;
}
/**
* @dev enable/disable antibot measures
*/
function setAntiBotEnabled(bool value) external onlyOwner {
antiBotEnabled = value;
}
//to recieve ETH from uniSwapRouter when swaping
receive() external payable {}
/**
* @dev get/calculates all values e.g taxfee,
* liquidity fee, actual transfer amount to receiver,
* deuction amount from sender
* amount with reward to all holders
* amount without reward to all holders
*/
function _getValues(uint256 tAmount) private view returns (uint256, uint256) {
uint256 tFee = calculateFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee);
return (tTransferAmount, tFee);
}
/**
* @dev take's fee tokens from tansaction and saves in contract
*/
function _takeFee(address account, uint256 tFee) private {
if(tFee > 0) {
_tOwned[address(this)] = _tOwned[address(this)].add(tFee);
emit Transfer(account, address(this), tFee);
}
}
/**
* @dev calculates fee tokens to be deducted
*/
function calculateFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_totalFee).div(
10**3
);
}
/**
* @dev increase fee if selling
*/
function increaseFee() private {
_totalFee = _totalFee.add(sellExtraFee);
}
/**
* @dev removes all fee from transaction if takefee is set to false
*/
function removeAllFee() private {
if(_totalFee == 0) return;
_previousTotalFee = _totalFee;
_totalFee = 0;
}
/**
* @dev restores all fee after exclude fee transaction completes
*/
function restoreAllFee() private {
_totalFee = _previousTotalFee;
}
/**
* @dev decrease fee after selling
*/
function decreaseFee() private {
_totalFee = _totalFee.sub(sellExtraFee);
}
/**
* @dev approves amount of token spender can spend on behalf of an owner
*/
function _approve(address owner, address spender, uint256 amount) private {
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 transfers token from sender to recipient also auto
* swapsandliquify if contract's token balance threshold is reached
*/
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0) && to != address(0), "ERC20: transfer from or two the zero address");
require(!isBlacklisted[from], "You are Blacklisted");
if(antiBotEnabled) {
require(balanceOf(to) + amount <= maxTokensPerAddress || isExcludedFromAntiWhale[to],
"Max tokens limit for this account exceeded. Or try lower amount");
require(isExcludedFromTransactionCoolDown[from] || block.timestamp >= _transactionCheckpoint[from] + _transactionCoolTime,
"Wait for transaction cooldown time to end before making a tansaction");
require(isExcludedFromTransactionCoolDown[to] || block.timestamp >= _transactionCheckpoint[to] + _transactionCoolTime,
"Wait for transaction cooldown time to end before making a tansaction");
if(from != owner() && to != owner())
require(amount <= maxTxnAmount, "Transfer amount exceeds the maxTxAmount.");
_transactionCheckpoint[from] = block.timestamp;
_transactionCheckpoint[to] = block.timestamp;
}
// is the token balance of this contract address over the min number of
// tokens that we need to initiate a swap + liquidity lock?
// also, don't get caught in a circular liquidity event.
// also, don't swap & liquify if sender is uniSwap pair.
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= maxTxnAmount)
{
contractTokenBalance = maxTxnAmount;
}
bool overMinTokenBalance = contractTokenBalance >=minTokensSwapToAndTransferTo;
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
from != uniSwapPair &&
swapAndLiquifyEnabled
) {
contractTokenBalance =minTokensSwapToAndTransferTo;
//add liquidity
swapAndLiquify(contractTokenBalance);
}
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to isExcludedFromFee account then remove the fee
if(isExcludedFromFee[from] || isExcludedFromFee[to]){
takeFee = false;
}
//transfer amount, it will take tax fee
_tokenTransfer(from,to,amount,takeFee);
}
/**
* @dev swapsAndLiquify tokens to uniSwap if swapandliquify is enabled
*/
function swapAndLiquify(uint256 tokenBalance) private lockTheSwap {
// first split contract into marketing fee and liquidity fee
uint256 swapPercent = developmentFee.add(marketingFee).add(maintainanceFee).add(liquidityFee/2);
uint256 swapTokens = tokenBalance.div(_totalFee).mul(swapPercent);
uint256 liquidityTokens = tokenBalance.sub(swapTokens);
uint256 initialBalance = address(this).balance;
swapTokensForEth(swapTokens);
uint256 transferredBalance = address(this).balance.sub(initialBalance);
uint256 developmentAmount = 0;
uint256 maintainanceAmount = 0;
uint256 marketingAmount = 0;
if(developmentFee > 0)
{
developmentAmount = transferredBalance.mul(developmentFee).div(swapPercent);
developmentAddress.transfer(developmentAmount);
}
if(marketingFee > 0)
{
marketingAmount = transferredBalance.mul(marketingFee).div(swapPercent);
marketingAddress.transfer(marketingAmount);
}
if(maintainanceFee > 0)
{
maintainanceAmount = transferredBalance.mul(maintainanceFee).div(swapPercent);
maintainanceAddress.transfer(maintainanceAmount);
}
if(liquidityFee > 0)
{
transferredBalance = transferredBalance.sub(developmentAmount).sub(marketingAmount).sub(maintainanceAmount);
addLiquidity(owner(), liquidityTokens, transferredBalance);
emit SwapAndLiquify(liquidityTokens, transferredBalance, liquidityTokens);
}
}
/**
* @dev swap's exact amount of tokens for ETH if swapandliquify is enabled
*/
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] = uniSwapRouter.WETH();
_approve(address(this), address(uniSwapRouter), tokenAmount);
// make the swap
uniSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
/**
* @dev add's liquidy to uniSwap if swapandliquify is enabled
*/
function addLiquidity(address recipient, uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniSwapRouter), tokenAmount);
// add the liquidity
uniSwapRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
recipient,
block.timestamp
);
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
if(recipient == uniSwapPair && sellExtraFee > 0)
increaseFee();
if(!takeFee)
removeAllFee();
(uint256 tTransferAmount, uint256 tFee) = _getValues(amount);
_tOwned[sender] = _tOwned[sender].sub(amount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_takeFee(sender, tFee);
emit Transfer(sender, recipient, tTransferAmount);
if(!takeFee)
restoreAllFee();
if(recipient == uniSwapPair && sellExtraFee > 0)
decreaseFee();
}
/**
* @dev Blacklist a singel wallet from buying and selling
*/
function blacklistSingleWallet(address account) external onlyOwner{
if(isBlacklisted[account] == true) return;
isBlacklisted[account] = true;
}
/**
* @dev Blacklist multiple wallets from buying and selling
*/
function blacklistMultipleWallets(address[] calldata accounts) external onlyOwner{
require(accounts.length < 800, "Can not blacklist more then 800 address in one transaction");
for (uint256 i; i < accounts.length; ++i) {
isBlacklisted[accounts[i]] = true;
}
}
/**
* @dev un blacklist a singel wallet from buying and selling
*/
function unBlacklistSingleWallet(address account) external onlyOwner{
if(isBlacklisted[account] == false) return;
isBlacklisted[account] = false;
}
/**
* @dev un blacklist multiple wallets from buying and selling
*/
function unBlacklistMultipleWallets(address[] calldata accounts) external onlyOwner {
require(accounts.length < 800, "Can not Unblacklist more then 800 address in one transaction");
for (uint256 i; i < accounts.length; ++i) {
isBlacklisted[accounts[i]] = false;
}
}
/**
* @dev recovers any tokens stuck in Contract's address
* NOTE! if ownership is renounced then it will not work
*/
function recoverTokens(address tokenAddress, address recipient, uint256 amountToRecover) external onlyOwner {
IERC20 token = IERC20(tokenAddress);
uint256 balance = token.balanceOf(address(this));
require(balance >= amountToRecover, "Not Enough Tokens in contract to recover");
if(amountToRecover > 0)
token.transfer(recipient, amountToRecover);
}
/**
* @dev recovers any ETH stuck in Contract's balance
* NOTE! if ownership is renounced then it will not work
*/
function recoverETH() external onlyOwner {
address payable recipient = _msgSender();
if(address(this).balance > 0)
recipient.transfer(address(this).balance);
}
//New uniswap router version?
//No problem, just change it!
function setRouterAddress(address newRouter) external onlyOwner {
IUniSwapRouter _newUniSwapRouter = IUniSwapRouter(newRouter);
uniSwapPair = IUniSwapFactory(_newUniSwapRouter.factory()).createPair(address(this), _newUniSwapRouter.WETH());
uniSwapRouter = _newUniSwapRouter;
isExcludedFromAntiWhale[uniSwapPair] = true;
isExcludedFromTransactionCoolDown[uniSwapPair] = true;
}
}
{
"compilationTarget": {
"contracts/metapets_without_reflection.sol": "METAPETS"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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