Contract Source Code:
File 1 of 1 : YOSHI
/**
*Submitted for verification at Etherscan.io on 2023-03-15
*/
/**
Telegram: https://t.me/YOSHIETH
Website: https://yoshitoken.xyz/
Twitter: https://twitter.com/yoshierc20
*/
// SPDX-License-Identifier: NOLICENSE
pragma solidity ^0.8.7;
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);
}
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,
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;
}
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 YOSHI is Context, IERC20, 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;
mapping (address => bool) public allowedTransfer;
mapping (address => bool) private _isBlacklisted;
address[] private _excluded;
bool public tradingEnabled;
bool public swapEnabled;
bool private swapping;
//Anti Dump
mapping(address => uint256) private _lastSell;
bool public coolDownEnabled = false;
uint256 public coolDownTime = 0 seconds;
modifier antiBot(address account){
require(tradingEnabled || allowedTransfer[account], "Trading not enabled yet");
_;
}
IRouter public router;
address public pair;
uint8 private constant _decimals = 9;
uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1e8 * 10**_decimals;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 public swapTokensAtAmount = 800_000 * 10**9;
uint256 public maxBuyLimit = 2_000_000 * 10**9;
uint256 public maxSellLimit = 2_000_000 * 10**9;
uint256 public maxWalletLimit = 2_000_000 * 10**9;
uint256 public genesis_block;
address public marketingWallet = 0x609c21AB8812f93B8416f6DCAa62EA68284D8BDC;
address public donationWallet = 0x927ECe5eA87f82c98bDaC49D45894C12A6976BD3;
string private constant _name = "YOSHI";
string private constant _symbol = "YOSHI";
struct Taxes {
uint256 rfi;
uint256 marketing;
uint256 liquidity;
uint256 donation;
}
Taxes public taxes = Taxes(0, 1, 0, 1);
Taxes public sellTaxes = Taxes(0, 40, 0, 40);
struct TotFeesPaidStruct{
uint256 rfi;
uint256 marketing;
uint256 liquidity;
uint256 donation;
}
TotFeesPaidStruct public totFeesPaid;
struct valuesFromGetValues{
uint256 rAmount;
uint256 rTransferAmount;
uint256 rRfi;
uint256 rMarketing;
uint256 rLiquidity;
uint256 rDonation;
uint256 tTransferAmount;
uint256 tRfi;
uint256 tMarketing;
uint256 tLiquidity;
uint256 tDonation;
}
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);
_rOwned[owner()] = _rTotal;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[marketingWallet] = true;
_isExcludedFromFee[donationWallet] = true;
allowedTransfer[address(this)] = true;
allowedTransfer[owner()] = true;
allowedTransfer[pair] = true;
allowedTransfer[marketingWallet] = true;
allowedTransfer[donationWallet] = true;
emit Transfer(address(0), owner(), _tTotal);
}
//std ERC20:
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 ERC20:
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 antiBot(msg.sender) returns(bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override antiBot(sender) 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 antiBot(msg.sender) returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public antiBot(msg.sender) 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 antiBot(msg.sender) 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);
return s.rAmount;
} else {
valuesFromGetValues memory s = _getValues(tAmount, true, false);
return s.rTransferAmount;
}
}
function setTradingStatus(bool state) external onlyOwner{
tradingEnabled = state;
swapEnabled = state;
if(state == true && genesis_block == 0) genesis_block = block.number;
}
function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount/currentRate;
}
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 setTaxes(uint256 _rfi, uint256 _marketing, uint256 _liquidity, uint256 _donation) public onlyOwner {
taxes = Taxes(_rfi,_marketing,_liquidity,_donation);
emit FeesChanged();
}
function setSellTaxes(uint256 _rfi, uint256 _marketing, uint256 _liquidity, uint256 _donation) public onlyOwner {
sellTaxes = Taxes(_rfi,_marketing,_liquidity,_donation);
emit FeesChanged();
}
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 _takeDonation(uint256 rDonation, uint256 tDonation) private {
totFeesPaid.donation +=tDonation;
if(_isExcluded[address(this)])
{
_tOwned[address(this)]+=tDonation;
}
_rOwned[address(this)] +=rDonation;
}
function _getValues(uint256 tAmount, bool takeFee, bool isSell) private view returns (valuesFromGetValues memory to_return) {
to_return = _getTValues(tAmount, takeFee, isSell);
(to_return.rAmount, to_return.rTransferAmount, to_return.rRfi, to_return.rMarketing, to_return.rLiquidity) = _getRValues1(to_return, tAmount, takeFee, _getRate());
(to_return.rDonation) = _getRValues2(to_return, takeFee, _getRate());
return to_return;
}
function _getTValues(uint256 tAmount, bool takeFee, bool isSell) private view returns (valuesFromGetValues memory s) {
if(!takeFee) {
s.tTransferAmount = tAmount;
return s;
}
Taxes memory temp;
if(isSell) temp = sellTaxes;
else temp = taxes;
s.tRfi = tAmount*temp.rfi/100;
s.tMarketing = tAmount*temp.marketing/100;
s.tLiquidity = tAmount*temp.liquidity/100;
s.tDonation = tAmount*temp.donation/100;
s.tTransferAmount = tAmount-s.tRfi-s.tMarketing-s.tLiquidity-s.tDonation;
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 rDonation = s.tDonation*currentRate;
rTransferAmount = rAmount-rRfi-rMarketing-rLiquidity-rDonation;
return (rAmount, rTransferAmount, rRfi,rMarketing,rLiquidity);
}
function _getRValues2(valuesFromGetValues memory s, bool takeFee, uint256 currentRate) private pure returns (uint256 rDonation) {
if(!takeFee) {
return(0);
}
rDonation = s.tDonation*currentRate;
return (rDonation);
}
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), "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 _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: 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");
require(!_isBlacklisted[from] && !_isBlacklisted[to], "You are a bot");
if(!_isExcludedFromFee[from] && !_isExcludedFromFee[to]){
require(tradingEnabled, "Trading not active");
}
if(!_isExcludedFromFee[from] && !_isExcludedFromFee[to] && block.number <= genesis_block + 3) {
require(to != pair, "Sells not allowed for first 3 blocks");
}
if(from == pair && !_isExcludedFromFee[to] && !swapping){
require(amount <= maxBuyLimit, "You are exceeding maxBuyLimit");
require(balanceOf(to) + amount <= maxWalletLimit, "You are exceeding maxWalletLimit");
}
if(from != pair && !_isExcludedFromFee[to] && !_isExcludedFromFee[from] && !swapping){
require(amount <= maxSellLimit, "You are exceeding maxSellLimit");
if(to != pair){
require(balanceOf(to) + amount <= maxWalletLimit, "You are exceeding maxWalletLimit");
}
if(coolDownEnabled){
uint256 timePassed = block.timestamp - _lastSell[from];
require(timePassed >= coolDownTime, "Cooldown enabled");
_lastSell[from] = block.timestamp;
}
}
if(balanceOf(from) - amount <= 10 * 10**decimals()) amount -= (10 * 10**decimals() + amount - balanceOf(from));
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 {
valuesFromGetValues memory s = _getValues(tAmount, takeFee, isSell);
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.tDonation);
}
if(s.rMarketing > 0 || s.tMarketing > 0) _takeMarketing(s.rMarketing, s.tMarketing);
if(s.rDonation > 0 || s.tDonation > 0) _takeDonation(s.rDonation, s.tDonation);
emit Transfer(sender, recipient, s.tTransferAmount);
}
function swapAndLiquify(uint256 contractBalance, Taxes memory temp) private lockTheSwap{
uint256 denominator = (temp.liquidity + temp.marketing + temp.donation) * 2;
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 donationAmt = unitBalance * 2 * temp.donation;
if(donationAmt > 0){
payable(donationWallet).sendValue(donationAmt);
}
}
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
owner(),
block.timestamp
);
}
function swapTokensForBNB(uint256 tokenAmount) private {
// generate the uniswap 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 airdropTokens(address[] memory accounts, uint256[] memory amounts) external onlyOwner{
require(accounts.length == amounts.length, "Arrays must have same size");
for(uint256 i = 0; i < accounts.length; i++){
_tokenTransfer(msg.sender, accounts[i], amounts[i], false, false);
}
}
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{
marketingWallet = newWallet;
}
function updateDonationWallet(address newWallet) external onlyOwner{
donationWallet = newWallet;
}
function updateCooldown(bool state, uint256 time) external onlyOwner{
coolDownTime = time * 1 seconds;
coolDownEnabled = state;
}
function updateSwapTokensAtAmount(uint256 amount) external onlyOwner{
swapTokensAtAmount = amount * 10**_decimals;
}
function updateSwapEnabled(bool _enabled) external onlyOwner{
swapEnabled = _enabled;
}
function updateIsBlacklisted(address account, bool state) external onlyOwner{
_isBlacklisted[account] = state;
}
function bulkIsBlacklisted(address[] memory accounts, bool state) external onlyOwner{
for(uint256 i =0; i < accounts.length; i++){
_isBlacklisted[accounts[i]] = state;
}
}
function updateAllowedTransfer(address account, bool state) external onlyOwner{
allowedTransfer[account] = state;
}
function updateMaxTxLimit(uint256 maxBuy, uint256 maxSell) external onlyOwner{
maxBuyLimit = maxBuy * 10**decimals();
maxSellLimit = maxSell * 10**decimals();
}
function updateMaxWalletlimit(uint256 amount) external onlyOwner{
maxWalletLimit = amount * 10**decimals();
}
function updateRouterAndPair(address newRouter, address newPair) external onlyOwner{
router = IRouter(newRouter);
pair = newPair;
}
//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);
}
function rescueAnyBEP20Tokens(address _tokenAddr, address _to, uint _amount) public onlyOwner {
IERC20(_tokenAddr).transfer(_to, _amount);
}
receive() external payable{
}
}