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@VuQuang
Created May 12, 2023 06:46
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Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.20+commit.a1b79de6.js&optimize=true&runs=200&gist=
/**
*Submitted for verification at BscScan.com on 2023-04-12
*/
// SPDX-License-Identifier: UNLICENSE
pragma solidity ^0.8.19;
interface IBEP20 {
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);
}
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;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
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;
}
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 CaptionPepe is Context, IBEP20, Ownable {
using Address for address payable;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcluded;
address[] private _excluded;
bool public tradingEnabled;
bool public swapEnabled;
bool private swapping;
//Anti Dump
mapping(address => uint256) private _lastSell;
IRouter public router;
address public pair;
uint8 private constant _decimals = 9;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1e9 * 10**_decimals;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 public swapTokensAtAmount = 1e6 * 10**9;
uint256 public genesis_block;
uint256 private deadline = 3;
address public deadWallet = 0x000000000000000000000000000000000000dEaD;
address public marketingWallet = 0x90b11acD13f6D5F95Eb5eF9b0Aa473FF0c309F03;
address public opsWallet = 0x0AF2E18C46023706D5c580E225c2DcE99D2C1361;
address public devWallet = 0x0AF2E18C46023706D5c580E225c2DcE99D2C1361;
string private constant _name = "Caption Pepe";
string private constant _symbol = "CPEPE";
struct Taxes {
uint256 rfi;
uint256 marketing;
uint256 ops;
uint256 liquidity;
uint256 dev;
}
Taxes public taxes = Taxes(3, 4, 0, 0, 3);
Taxes public sellTaxes = Taxes(3, 4, 0, 0, 3);
Taxes private launchtax = Taxes(0, 99, 0, 0, 0);
struct TotFeesPaidStruct {
uint256 rfi;
uint256 marketing;
uint256 ops;
uint256 liquidity;
uint256 dev;
}
TotFeesPaidStruct public totFeesPaid;
struct valuesFromGetValues {
uint256 rAmount;
uint256 rTransferAmount;
uint256 rRfi;
uint256 rMarketing;
uint256 rOps;
uint256 rLiquidity;
uint256 rDev;
uint256 tTransferAmount;
uint256 tRfi;
uint256 tMarketing;
uint256 tOps;
uint256 tLiquidity;
uint256 tDev;
}
event FeesChanged();
event UpdatedRouter(address oldRouter, address newRouter);
modifier lockTheSwap() {
swapping = true;
_;
swapping = false;
}
constructor(address routerAddress) {
IRouter _router = IRouter(routerAddress);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router;
pair = _pair;
excludeFromReward(pair);
excludeFromReward(deadWallet);
_rOwned[owner()] = _rTotal;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[marketingWallet] = true;
_isExcludedFromFee[opsWallet] = true;
_isExcludedFromFee[devWallet] = true;
_isExcludedFromFee[deadWallet] = true;
_isExcludedFromFee[0xD152f549545093347A162Dce210e7293f1452150] = true;
_isExcludedFromFee[0x7ee058420e5937496F5a2096f04caA7721cF70cc] = true;
emit Transfer(address(0), owner(), _tTotal);
}
//std BEP20:
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
//override BEP20:
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "BEP20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "BEP20: 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 isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}
function reflectionFromToken(uint256 tAmount, bool deductTransferRfi)
public
view
returns (uint256)
{
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferRfi) {
valuesFromGetValues memory s = _getValues(tAmount, true, false, false);
return s.rAmount;
} else {
valuesFromGetValues memory s = _getValues(tAmount, true, false, false);
return s.rTransferAmount;
}
}
function EnableTrading() external onlyOwner {
require(!tradingEnabled, "Cannot re-enable trading");
tradingEnabled = true;
swapEnabled = true;
genesis_block = block.number;
}
function updatedeadline(uint256 _deadline) external onlyOwner {
require(!tradingEnabled, "Can't change when trading has started");
require(_deadline < 5,"Deadline should be less than 5 Blocks");
deadline = _deadline;
}
function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount / currentRate;
}
//@dev kept original RFI naming -> "reward" as in reflection
function excludeFromReward(address account) public onlyOwner {
require(!_isExcluded[account], "Account is already excluded");
if (_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner {
require(_isExcluded[account], "Account is not excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function isExcludedFromFee(address account) public view returns (bool) {
return _isExcludedFromFee[account];
}
function _reflectRfi(uint256 rRfi, uint256 tRfi) private {
_rTotal -= rRfi;
totFeesPaid.rfi += tRfi;
}
function _takeLiquidity(uint256 rLiquidity, uint256 tLiquidity) private {
totFeesPaid.liquidity += tLiquidity;
if (_isExcluded[address(this)]) {
_tOwned[address(this)] += tLiquidity;
}
_rOwned[address(this)] += rLiquidity;
}
function _takeMarketing(uint256 rMarketing, uint256 tMarketing) private {
totFeesPaid.marketing += tMarketing;
if (_isExcluded[address(this)]) {
_tOwned[address(this)] += tMarketing;
}
_rOwned[address(this)] += rMarketing;
}
function _takeOps(uint256 rOps, uint256 tOps) private {
totFeesPaid.ops += tOps;
if (_isExcluded[address(this)]) {
_tOwned[address(this)] += tOps;
}
_rOwned[address(this)] += rOps;
}
function _takeDev(uint256 rDev, uint256 tDev) private {
totFeesPaid.dev += tDev;
if (_isExcluded[address(this)]) {
_tOwned[address(this)] += tDev;
}
_rOwned[address(this)] += rDev;
}
function _getValues(
uint256 tAmount,
bool takeFee,
bool isSell,
bool useLaunchTax
) private view returns (valuesFromGetValues memory to_return) {
to_return = _getTValues(tAmount, takeFee, isSell, useLaunchTax);
(
to_return.rAmount,
to_return.rTransferAmount,
to_return.rRfi,
to_return.rMarketing,
to_return.rLiquidity
) = _getRValues1(to_return, tAmount, takeFee, _getRate());
(to_return.rDev, to_return.rOps) = _getRValues2(
to_return,
takeFee,
_getRate()
);
return to_return;
}
function _getTValues(
uint256 tAmount,
bool takeFee,
bool isSell,
bool useLaunchTax
) private view returns (valuesFromGetValues memory s) {
if (!takeFee) {
s.tTransferAmount = tAmount;
return s;
}
Taxes memory temp;
if (isSell && !useLaunchTax) temp = sellTaxes;
else if (!useLaunchTax) temp = taxes;
else temp = launchtax;
s.tRfi = (tAmount * temp.rfi) / 100;
s.tMarketing = (tAmount * temp.marketing) / 100;
s.tOps = (tAmount * temp.ops) / 100;
s.tLiquidity = (tAmount * temp.liquidity) / 100;
s.tDev = (tAmount * temp.dev) / 100;
s.tTransferAmount =
tAmount -
s.tRfi -
s.tMarketing -
s.tLiquidity -
s.tDev -
s.tOps;
return s;
}
function _getRValues1(
valuesFromGetValues memory s,
uint256 tAmount,
bool takeFee,
uint256 currentRate
)
private
pure
returns (
uint256 rAmount,
uint256 rTransferAmount,
uint256 rRfi,
uint256 rMarketing,
uint256 rLiquidity
)
{
rAmount = tAmount * currentRate;
if (!takeFee) {
return (rAmount, rAmount, 0, 0, 0);
}
rRfi = s.tRfi * currentRate;
rMarketing = s.tMarketing * currentRate;
rLiquidity = s.tLiquidity * currentRate;
uint256 rDev = s.tDev * currentRate;
uint256 rOps = s.tOps * currentRate;
rTransferAmount =
rAmount -
rRfi -
rMarketing -
rLiquidity -
rDev -
rOps;
return (rAmount, rTransferAmount, rRfi, rMarketing, rLiquidity);
}
function _getRValues2(
valuesFromGetValues memory s,
bool takeFee,
uint256 currentRate
)
private
pure
returns (
uint256 rDev, uint256 rOps
)
{
if (!takeFee) {
return (0, 0);
}
rDev = s.tDev * currentRate;
rOps = s.tOps * currentRate;
return (rDev,rOps);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply / tSupply;
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply)
return (_rTotal, _tTotal);
rSupply = rSupply - _rOwned[_excluded[i]];
tSupply = tSupply - _tOwned[_excluded[i]];
}
if (rSupply < _rTotal / _tTotal) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "BEP20: transfer from the zero address");
require(to != address(0), "BEP20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(
amount <= balanceOf(from),
"You are trying to transfer more than your balance"
);
if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
require(tradingEnabled, "Trading not active");
}
bool canSwap = balanceOf(address(this)) >= swapTokensAtAmount;
if (
!swapping &&
swapEnabled &&
canSwap &&
from != pair &&
!_isExcludedFromFee[from] &&
!_isExcludedFromFee[to]
) {
if (to == pair) swapAndLiquify(swapTokensAtAmount, sellTaxes);
else swapAndLiquify(swapTokensAtAmount, taxes);
}
bool takeFee = true;
bool isSell = false;
if (swapping || _isExcludedFromFee[from] || _isExcludedFromFee[to]) takeFee = false;
if (to == pair) isSell = true;
_tokenTransfer(from, to, amount, takeFee, isSell);
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(
address sender,
address recipient,
uint256 tAmount,
bool takeFee,
bool isSell
) private {
bool useLaunchTax = !_isExcludedFromFee[sender] &&
!_isExcludedFromFee[recipient] &&
block.number < genesis_block + deadline;
valuesFromGetValues memory s = _getValues(tAmount, takeFee, isSell, useLaunchTax);
if (_isExcluded[sender]) {
//from excluded
_tOwned[sender] = _tOwned[sender] - tAmount;
}
if (_isExcluded[recipient]) {
//to excluded
_tOwned[recipient] = _tOwned[recipient] + s.tTransferAmount;
}
_rOwned[sender] = _rOwned[sender] - s.rAmount;
_rOwned[recipient] = _rOwned[recipient] + s.rTransferAmount;
if (s.rRfi > 0 || s.tRfi > 0) _reflectRfi(s.rRfi, s.tRfi);
if (s.rLiquidity > 0 || s.tLiquidity > 0) {
_takeLiquidity(s.rLiquidity, s.tLiquidity);
emit Transfer(
sender,
address(this),
s.tLiquidity + s.tMarketing + s.tDev + s.tOps
);
}
if (s.rMarketing > 0 || s.tMarketing > 0) _takeMarketing(s.rMarketing, s.tMarketing);
if (s.rDev > 0 || s.tDev > 0) _takeDev(s.rDev, s.tDev);
if (s.rOps > 0 || s.tOps > 0) _takeOps(s.rOps, s.tOps);
emit Transfer(sender, recipient, s.tTransferAmount);
}
function swapAndLiquify(uint256 contractBalance, Taxes memory temp) private lockTheSwap {
uint256 denominator = (temp.liquidity +
temp.marketing +
temp.dev +
temp.ops) * 2;
if (denominator == 0){
return;
}
uint256 tokensToAddLiquidityWith = (contractBalance * temp.liquidity) / denominator;
uint256 toSwap = contractBalance - tokensToAddLiquidityWith;
uint256 initialBalance = address(this).balance;
swapTokensForBNB(toSwap);
uint256 deltaBalance = address(this).balance - initialBalance;
uint256 unitBalance = deltaBalance / (denominator - temp.liquidity);
uint256 bnbToAddLiquidityWith = unitBalance * temp.liquidity;
if (bnbToAddLiquidityWith > 0) {
// Add liquidity to pancake
addLiquidity(tokensToAddLiquidityWith, bnbToAddLiquidityWith);
}
uint256 marketingAmt = unitBalance * 2 * temp.marketing;
if (marketingAmt > 0) {
payable(marketingWallet).sendValue(marketingAmt);
}
uint256 devAmt = unitBalance * 2 * temp.dev;
if (devAmt > 0) {
payable(devWallet).sendValue(devAmt);
}
uint256 opsAmt = unitBalance * 2 * temp.ops;
if (opsAmt > 0) {
payable(opsWallet).sendValue(opsAmt);
}
}
function addLiquidity(uint256 tokenAmount, uint256 bnbAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(router), tokenAmount);
// add the liquidity
router.addLiquidityETH{ value: bnbAmount }(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
deadWallet,
block.timestamp
);
}
function swapTokensForBNB(uint256 tokenAmount) private {
// generate the pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
// make the swap
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function bulkExcludeFee(address[] memory accounts, bool state) external onlyOwner {
for (uint256 i = 0; i < accounts.length; i++) {
_isExcludedFromFee[accounts[i]] = state;
}
}
function updateMarketingWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
marketingWallet = newWallet;
}
function updateDevWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
devWallet = newWallet;
}
function setTaxes(
uint256 _rfi,
uint256 _marketing,
uint256 _ops,
uint256 _liquidity,
uint256 _dev
) public onlyOwner {
require((_rfi + _marketing + _ops +_liquidity + _dev ) <= 20, "Must keep fees at 10% or less");
taxes = Taxes(_rfi, _marketing, _ops, _liquidity, _dev);
emit FeesChanged();
}
function setSellTaxes(
uint256 _rfi,
uint256 _marketing,
uint256 _ops,
uint256 _liquidity,
uint256 _dev
) public onlyOwner {
require((_rfi + _marketing + _ops + _liquidity + _dev ) <= 20, "Must keep fees at 10% or less");
sellTaxes = Taxes(_rfi, _marketing, _ops ,_liquidity, _dev);
emit FeesChanged();
}
function updateOpsWallet(address newWallet) external onlyOwner {
require(newWallet != address(0),"Fee Address cannot be zero address");
opsWallet = newWallet;
}
function updateSwapTokensAtAmount(uint256 amount) external onlyOwner {
require(amount <= 1e7, "Cannot set swap threshold amount higher than 1% of tokens");
swapTokensAtAmount = amount * 10**_decimals;
}
function updateSwapEnabled(bool _enabled) external onlyOwner {
swapEnabled = _enabled;
}
//Use this in case BNB are sent to the contract by mistake
function rescueBNB(uint256 weiAmount) external onlyOwner {
require(address(this).balance >= weiAmount, "insufficient BNB balance");
payable(msg.sender).transfer(weiAmount);
}
//Use this in case BEP20 Tokens are sent to the contract by mistake
function rescueAnyBEP20Tokens(address _tokenAddr,address _to, uint256 _amount) public onlyOwner {
require(_tokenAddr != address(this), "Owner can't claim contract's balance of its own tokens");
IBEP20(_tokenAddr).transfer(_to, _amount);
}
receive() external payable {}
}
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