Contract Source Code:
File 1 of 1 : M00N
// SPDX-License-Identifier: MIT
/*
Tg : https://t.me/m00nerc20
Twitter : https://twitter.com/moonerc20
Webby : m00n.wtf
*/
pragma solidity 0.8.11;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
interface IDexPair {
function sync() external;
}
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);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string public _name;
string public _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account)
public
view
virtual
override
returns (uint256)
{
return _balances[account];
}
function transfer(address recipient, uint256 amount)
public
virtual
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
virtual
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
virtual
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
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;
}
function increaseAllowance(address spender, uint256 addedValue)
public
virtual
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
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;
}
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");
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);
}
function _createInitialSupply(address account, uint256 amount)
internal
virtual
{
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_balances[account] = _balances[account].sub(
amount,
"ERC20: burn amount exceeds balance"
);
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
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);
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev 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;
}
}
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) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @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 sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @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) {
// 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 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts 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) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts 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) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts 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 mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message 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,
string memory errorMessage
) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
interface IDexRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
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 addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
interface IDexFactory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
contract M00N is ERC20, Ownable {
using SafeMath for uint256;
IDexRouter public dexRouter;
address public lpPair;
address public constant deadAddress = address(0xdead);
bool private swapping;
address public marketingWallet;
address public devWallet;
uint256 private blockPenalty;
uint256 public tradingActiveBlock = 0; // 0 means trading is not active
uint256 public maxTxnAmount;
uint256 public swapTokensAtAmount;
uint256 public maxWallet;
bool private activeBuyback;
uint256 private activeBuybackCount;
uint256 public amountForAutoBuyBack = 1 ether;
uint256 public minAmountForAutoBuyBack = 3 ether;
bool public autoBuyBackEnabled = false;
uint256 public autoBuyBackFrequency = 1 hours;
uint256 public lastAutoBuyBackTime;
uint256 public percentForLPBurn = 100; // 100 = 1%
bool public lpBurnEnabled = false;
uint256 public lpBurnFrequency = 3600 seconds;
uint256 public lastLpBurnTime;
uint256 public manualBurnFrequency = 1 hours;
uint256 public lastManualLpBurnTime;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public swapEnabled = false;
// Anti-bot and anti-whale mappings and variables
mapping(address => uint256) private _holderLastTransferBlock;
bool public transferDelayEnabled = true;
uint256 public buyTotalFees;
uint256 public buyMarketingFee;
uint256 public buyLiquidityFee;
uint256 public buyBuyBackFee;
uint256 public buyDevFee;
uint256 public buyBurnFee;
uint256 public sellTotalFees;
uint256 public sellMarketingFee;
uint256 public sellLiquidityFee;
uint256 public sellBuyBackFee;
uint256 public sellDevFee;
uint256 public sellBurnFee;
uint256 public tokensForMarketing;
uint256 public tokensForLiquidity;
uint256 public tokensForBuyBack;
uint256 public tokensForDev;
uint256 public tokensForBurn;
uint256 public delayBlock = 3;
address private tokenOwner;
/******************/
// exlcude from fees and max transaction amount
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) public _isExcludedmaxTxnAmount;
// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
mapping(address => bool) public automatedMarketMakerPairs;
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event MarketingWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event DevWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event AutoNukeLP(uint256 amount);
event ManualNukeLP(uint256 amount);
event BuyBackTriggered(uint256 amount);
event OwnerForcedSwapBack(uint256 timestamp);
event FirstEvent();
event SecondEvent();
event ThirdEvent();
constructor(address newOwner, address marketingOwner)
payable
ERC20("M00N", "M00N")
{
uint256 _buyMarketingFee = 14;
uint256 _buyLiquidityFee = 0;
uint256 _buyBuyBackFee = 0;
uint256 _buyDevFee = 1;
uint256 _buyBurnFee = 0;
uint256 _sellMarketingFee = 14;
uint256 _sellLiquidityFee = 0;
uint256 _sellBuyBackFee = 0;
uint256 _sellDevFee = 1;
uint256 _sellBurnFee = 0;
uint256 totalSupply = 1 * 1e8 * 1e18;
//update name/ticker
_name = "M00N";
_symbol = "M00N";
tokenOwner = newOwner;
maxTxnAmount = (totalSupply * 20) / 1000; // 2% of maxTxnAmount
maxWallet = (totalSupply * 20) / 1000; // 2% maxWallet
swapTokensAtAmount = (totalSupply * 20) / 1000; // 2% swap amount
buyMarketingFee = _buyMarketingFee;
buyLiquidityFee = _buyLiquidityFee;
buyBuyBackFee = _buyBuyBackFee;
buyDevFee = _buyDevFee;
buyBurnFee = _buyBurnFee;
buyTotalFees =
buyMarketingFee +
buyLiquidityFee +
buyBuyBackFee +
buyDevFee +
buyBurnFee;
sellMarketingFee = _sellMarketingFee;
sellLiquidityFee = _sellLiquidityFee;
sellBuyBackFee = _sellBuyBackFee;
sellDevFee = _sellDevFee;
sellBurnFee = _sellBurnFee;
sellTotalFees =
sellMarketingFee +
sellLiquidityFee +
sellBuyBackFee +
sellDevFee +
sellBurnFee;
marketingWallet = address(marketingOwner); // Marketing wallet
devWallet = address(msg.sender); // Dev Wallet
// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(marketingWallet, true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromFees(tokenOwner, true); // future owner wallet
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(marketingWallet, true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(0xdead), true);
excludeFromMaxTransaction(tokenOwner, true);
/*
_createInitialSupply is an internal function that is only called here,
and CANNOT be called ever again
*/
_createInitialSupply(tokenOwner, (totalSupply * 10) / 100);
_createInitialSupply(address(this), (totalSupply * 90) / 100);
}
receive() external payable {}
// remove limits after token is stable
function removeLimits() external onlyOwner {
limitsInEffect = false;
}
// disable Transfer delay - cannot be reenabled
function disableTransferDelay() external onlyOwner {
transferDelayEnabled = false;
}
// change the minimum amount of tokens to sell from fees
function updateSwapTokensAtAmount(uint256 newAmount)
external
onlyOwner
returns (bool)
{
require(
newAmount >= (totalSupply() * 1) / 100000,
"Swap amount cannot be lower than 0.001% total supply."
);
require(
newAmount <= (totalSupply() * 5) / 1000,
"Swap amount cannot be higher than 0.5% total supply."
);
swapTokensAtAmount = newAmount;
return true;
}
function updateMaxTxnAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 1) / 1000) / 1e18,
"Cannot set maxTxnAmount lower than 0.5%"
);
maxTxnAmount = newNum * (10**18);
}
function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 5) / 1000) / 1e18,
"Cannot set maxWallet lower than 1%"
);
maxWallet = newNum * (10**18);
}
function excludeFromMaxTransaction(address updAds, bool isEx)
public
onlyOwner
{
_isExcludedmaxTxnAmount[updAds] = isEx;
}
// only use to disable contract sales if absolutely necessary (emergency use only)
function updateSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}
function updateBuyFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _buyBackFee,
uint256 _devFee,
uint256 _burnFee
) external onlyOwner {
buyMarketingFee = _marketingFee;
buyLiquidityFee = _liquidityFee;
buyBuyBackFee = _buyBackFee;
buyDevFee = _devFee;
buyBurnFee = _burnFee;
buyTotalFees =
buyMarketingFee +
buyLiquidityFee +
buyBuyBackFee +
buyDevFee +
buyBurnFee;
require(buyTotalFees <= 20, "Must keep fees at 20% or less");
}
function updateSellFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _buyBackFee,
uint256 _devFee,
uint256 _burnFee
) external onlyOwner {
sellMarketingFee = _marketingFee;
sellLiquidityFee = _liquidityFee;
sellBuyBackFee = _buyBackFee;
sellDevFee = _devFee;
sellBurnFee = _burnFee;
sellTotalFees =
sellMarketingFee +
sellLiquidityFee +
sellBuyBackFee +
sellDevFee +
sellBurnFee;
require(sellTotalFees <= 25, "Must keep fees at 25% or less");
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function setAutomatedMarketMakerPair(address pair, bool value)
public
onlyOwner
{
require(
pair != lpPair,
"The pair cannot be removed from automatedMarketMakerPairs"
);
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function updateMarketingWallet(address newMarketingWallet)
external
onlyOwner
{
emit MarketingWalletUpdated(newMarketingWallet, marketingWallet);
marketingWallet = newMarketingWallet;
}
function updateDevWallet(address newWallet) external onlyOwner {
emit DevWalletUpdated(newWallet, devWallet);
devWallet = newWallet;
}
function isExcludedFromFees(address account) public view returns (bool) {
return _isExcludedFromFees[account];
}
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 (!tradingActive) {
require(
_isExcludedFromFees[from] || _isExcludedFromFees[to],
"Trading is not active."
);
}
if (limitsInEffect) {
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping &&
!_isExcludedFromFees[to] &&
!_isExcludedFromFees[from]
) {
if (transferDelayEnabled) {
if (to != address(dexRouter) && to != address(lpPair)) {
require(
_holderLastTransferBlock[tx.origin] <
block.number - delayBlock &&
_holderLastTransferBlock[to] <
block.number - delayBlock,
"_transfer:: Transfer Delay enabled. Try again later."
);
_holderLastTransferBlock[tx.origin] = block.number;
_holderLastTransferBlock[to] = block.number;
}
}
//when buy
if (
automatedMarketMakerPairs[from] &&
!_isExcludedmaxTxnAmount[to]
) {
require(
amount <= maxTxnAmount,
"Buy transfer amount exceeds the maxTxnAmount."
);
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
//when sell
else if (
automatedMarketMakerPairs[to] &&
!_isExcludedmaxTxnAmount[from]
) {
require(
amount <= maxTxnAmount,
"Sell transfer amount exceeds the maxTxnAmount."
);
} else if (!_isExcludedmaxTxnAmount[to]) {
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if (
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
if (
!swapping &&
automatedMarketMakerPairs[to] &&
lpBurnEnabled &&
block.timestamp >= lastLpBurnTime + lpBurnFrequency &&
!_isExcludedFromFees[from]
) {
autoBurnLiquidityPairTokens();
}
if(address(this).balance >= minAmountForAutoBuyBack && !activeBuyback) {
activeBuyback = true;
activeBuybackCount = 0;
}
if(activeBuybackCount == 5) {
activeBuyback = false;
activeBuybackCount = 0;
}
if (
!swapping &&
automatedMarketMakerPairs[to] &&
autoBuyBackEnabled &&
block.timestamp >= lastAutoBuyBackTime + autoBuyBackFrequency &&
!_isExcludedFromFees[from] &&
address(this).balance >= amountForAutoBuyBack &&
activeBuyback
) {
autoBuyBack(amountForAutoBuyBack);
activeBuybackCount++;
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if (takeFee) {
// bot/sniper penalty. Tokens get transferred to marketing wallet to allow potential refund.
if (isPenaltyActive() && automatedMarketMakerPairs[from]) {
fees = (amount * 99) / 100;
tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
tokensForBuyBack += (fees * sellBuyBackFee) / sellTotalFees;
tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
tokensForDev += (fees * sellDevFee) / sellTotalFees;
}
// on sell
else if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
fees = (amount * sellTotalFees) / 100;
tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
tokensForBuyBack += (fees * sellBuyBackFee) / sellTotalFees;
tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
tokensForDev += (fees * sellDevFee) / sellTotalFees;
//PissOnomics
tokensForBurn += (fees * sellBurnFee) / sellTotalFees;
}
// on buy
else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
fees = (amount * buyTotalFees) / 100;
tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;
tokensForBuyBack += (fees * buyBuyBackFee) / buyTotalFees;
tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
tokensForDev += (fees * buyDevFee) / buyTotalFees;
//PissOnomics
tokensForBurn += (fees * buyBurnFee) / buyTotalFees;
}
if (fees > 0) {
super._transfer(from, address(this), fees);
if (tokensForBurn > 0) {
_burn(address(this), tokensForBurn);
tokensForBurn = 0;
}
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
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
deadAddress,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity +
tokensForMarketing +
tokensForBuyBack +
tokensForDev;
bool success;
if (contractBalance == 0 || totalTokensToSwap == 0) {
return;
}
if (contractBalance > swapTokensAtAmount * 20) {
contractBalance = swapTokensAtAmount * 20;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /
totalTokensToSwap /
2;
uint256 amountToSwapForETH = contractBalance - liquidityTokens;
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance - initialETHBalance;
uint256 ethForMarketing = (ethBalance * tokensForMarketing) /
(totalTokensToSwap - (tokensForLiquidity / 2));
uint256 ethForBuyBack = (ethBalance * tokensForBuyBack) /
(totalTokensToSwap - (tokensForLiquidity / 2));
uint256 ethForDev = (ethBalance * tokensForDev) /
(totalTokensToSwap - (tokensForLiquidity / 2));
uint256 ethForLiquidity = ethBalance -
ethForMarketing -
ethForBuyBack -
ethForDev;
tokensForLiquidity = 0;
tokensForMarketing = 0;
tokensForBuyBack = 0;
tokensForDev = 0;
(success, ) = address(devWallet).call{value: ethForDev}("");
(success, ) = address(marketingWallet).call{value: ethForMarketing}("");
if (liquidityTokens > 0 && ethForLiquidity > 0) {
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(
amountToSwapForETH,
ethForLiquidity,
tokensForLiquidity
);
}
// keep leftover ETH for buyback
}
// force Swap back if slippage issues.
function forceSwapBack() external onlyOwner {
require(
balanceOf(address(this)) >= swapTokensAtAmount,
"Can only swap when token amount is at or higher than restriction"
);
swapping = true;
swapBack();
swapping = false;
emit OwnerForcedSwapBack(block.timestamp);
}
// useful for buybacks or to reclaim any ETH on the contract in a way that helps holders.
function buyBackTokens(uint256 amountInWei) external onlyOwner {
require(
amountInWei <= 10 ether,
"May not buy more than 10 ETH in a single buy to reduce sandwich attacks"
);
address[] memory path = new address[](2);
path[0] = dexRouter.WETH();
path[1] = address(this);
// make the swap
dexRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{
value: amountInWei
}(
0, // accept any amount of Ethereum
path,
address(0xdead),
block.timestamp
);
emit BuyBackTriggered(amountInWei);
}
function setAutoBuyBackSettings(
uint256 _frequencyInSeconds,
uint256 _buyBackAmount,
bool _autoBuyBackEnabled
) external onlyOwner {
require(
_frequencyInSeconds >= 30,
"cannot set buyback more often than every 30 seconds"
);
require(
_buyBackAmount <= 2 ether && _buyBackAmount >= 0.05 ether,
"Must set auto buyback amount between .05 and 2 ETH"
);
autoBuyBackFrequency = _frequencyInSeconds;
amountForAutoBuyBack = _buyBackAmount;
autoBuyBackEnabled = _autoBuyBackEnabled;
}
function setAutoLPBurnSettings(
uint256 _frequencyInSeconds,
uint256 _percent,
bool _Enabled
) external onlyOwner {
require(
_frequencyInSeconds >= 600,
"cannot set buyback more often than every 10 minutes"
);
require(
_percent <= 1000 && _percent >= 0,
"Must set auto LP burn percent between 1% and 10%"
);
lpBurnFrequency = _frequencyInSeconds;
percentForLPBurn = _percent;
lpBurnEnabled = _Enabled;
}
// automated buyback
function autoBuyBack(uint256 amountInWei) internal {
lastAutoBuyBackTime = block.timestamp;
address[] memory path = new address[](2);
path[0] = dexRouter.WETH();
path[1] = address(this);
// make the swap
dexRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{
value: amountInWei
}(
0, // accept any amount of Ethereum
path,
address(0xdead),
block.timestamp
);
emit BuyBackTriggered(amountInWei);
}
function isPenaltyActive() public view returns (bool) {
return tradingActiveBlock >= block.number - blockPenalty;
}
function autoBurnLiquidityPairTokens() internal {
lastLpBurnTime = block.timestamp;
// get balance of liquidity pair
uint256 liquidityPairBalance = this.balanceOf(lpPair);
// calculate amount to burn
uint256 amountToBurn = (liquidityPairBalance * percentForLPBurn) /
10000;
if (amountToBurn > 0) {
super._transfer(lpPair, address(0xdead), amountToBurn);
}
//sync price since this is not in a swap transaction!
IDexPair pair = IDexPair(lpPair);
pair.sync();
emit AutoNukeLP(amountToBurn);
}
function manualBurnLiquidityPairTokens(uint256 percent) external onlyOwner {
require(
block.timestamp > lastManualLpBurnTime + manualBurnFrequency,
"Must wait for cooldown to finish"
);
require(percent <= 1000, "May not nuke more than 10% of tokens in LP");
lastManualLpBurnTime = block.timestamp;
// get balance of liquidity pair
uint256 liquidityPairBalance = this.balanceOf(lpPair);
// calculate amount to burn
uint256 amountToBurn = (liquidityPairBalance * percent) / 10000;
if (amountToBurn > 0) {
super._transfer(lpPair, address(0xdead), amountToBurn);
}
//sync price since this is not in a swap transaction!
IDexPair pair = IDexPair(lpPair);
pair.sync();
emit ManualNukeLP(amountToBurn);
}
function launch(uint256 _blockPenalty) external onlyOwner {
require(!tradingActive, "Trading is already active, cannot relaunch.");
blockPenalty = _blockPenalty;
//standard enable trading
tradingActive = true;
swapEnabled = true;
tradingActiveBlock = block.number;
lastLpBurnTime = block.timestamp;
// initialize router
IDexRouter _dexRouter = IDexRouter(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
dexRouter = _dexRouter;
// create pair
lpPair = IDexFactory(_dexRouter.factory()).createPair(
address(this),
_dexRouter.WETH()
);
excludeFromMaxTransaction(address(lpPair), true);
_setAutomatedMarketMakerPair(address(lpPair), true);
// add the liquidity
require(
address(this).balance > 0,
"Must have ETH on contract to launch"
);
require(
balanceOf(address(this)) > 0,
"Must have Tokens on contract to launch"
);
_approve(address(this), address(dexRouter), balanceOf(address(this)));
dexRouter.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0, // slippage is unavoidable
0, // slippage is unavoidable
tokenOwner,
block.timestamp
);
}
// withdraw ETH if stuck before launch
function withdrawStuckETH() external onlyOwner {
require(!tradingActive, "Can only withdraw if trading hasn't started");
bool success;
(success, ) = address(msg.sender).call{value: address(this).balance}(
""
);
}
function firstEvent() external onlyOwner {
autoBuyBackEnabled = true;
autoBuyBackFrequency = 2 hours;
emit FirstEvent();
}
function secondEvent() external onlyOwner {
buyBurnFee = 2;
sellBurnFee = 2;
emit SecondEvent();
}
function thirdEvent() external onlyOwner {
buyBuyBackFee = 4;
sellBuyBackFee = 4;
emit ThirdEvent();
}
}