Contract Source Code:

/**

//SPDX-License-Identifier: Unlicensed

*/

pragma solidity ^0.8.6;


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);
}

library SafeMath {
    

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }
    
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }
    
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }
    
}



abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this; 
        return msg.data;
    }
}


library Address {
    
    function isContract(address account) internal view returns (bool) {
        uint256 size;
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    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");
    }
    
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }
    
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }
    
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }


    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }
    
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            if (returndata.length > 0) {
                 assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}







abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    constructor () {
        _owner = 0x606b8c57D59Df05BE011b182056D17Cd69B35e55;
        emit OwnershipTransferred(address(0), _owner);
    }
    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 {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }


    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);
    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);
    function createPair(address tokenA, address tokenB) external returns (address pair);
    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);
    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);
    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);
    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;
    function initialize(address, address) external;
}

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}






contract SaveUkraineCoin is Context, IERC20, Ownable { 
    using SafeMath for uint256;
    using Address for address;

    mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) public _isExcludedFromFee; 
    mapping (address => bool) private _isExcluded; 

    
    // Blacklist: If 'noBlackList' is true wallets on this list can not buy - used for known bots
    mapping (address => bool) public _isBlacklisted;

    // Set contract so that blacklisted wallets cannot buy (default is false)
    bool public noBlackList;
   

    address[] private _excluded; // Excluded from rewards
    address payable private Wallet_Marketing = payable(0x2F67253a6377d147235d30348267D955F2196b2a); 
    address payable private Wallet_Token_Burn = payable(0x2F67253a6377d147235d30348267D955F2196b2a); 
    address payable private Wallet_Dev = payable(0x2F67253a6377d147235d30348267D955F2196b2a); 
    address payable private Wallet_Burn = payable(0x000000000000000000000000000000000000dEaD); 
    address payable private Wallet_zero = payable(0x0000000000000000000000000000000000000000); 




    uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal = 15000000000 * 10**18;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;
    string private _name = "Save Ukraine Coin"; 
    string private _symbol = "SAVUK";  
    uint8 private _decimals = 18;

    // Counter for liquify trigger
    uint8 private txCount = 0;
    uint8 private swapTrigger = 4; 

    // This is the max fee that the contract will accept, it is hard-coded to protect buyers
    uint256 public maxPossibleFee = 17; 
    uint256 public minPossibleReflect = 0; 


    // Setting the initial fees
    uint256 public _FeeReflection = 2; 
    uint256 public _FeeBurnTokens = 0; 
    uint256 public _FeeLiquidity = 7;
    uint256 public _FeeMarketing = 4;
    uint256 public _FeeDev = 0; 

    // 'Previous fees' are used to keep track of fee settings when removing and restoring fees
    uint256 private _previousFeeReflection = _FeeReflection;
    uint256 private _previousFeeLiquidity = _FeeLiquidity;
    uint256 private _previousFeeMarketing = _FeeMarketing;
    uint256 private _previousFeeDev = _FeeDev; 
    uint256 private _previousFeeBurnTokens = _FeeBurnTokens;

    // The following settings are used to calculate fee splits when distributing bnb to liquidity and external wallets
    uint256 private _promoFee = _FeeMarketing+_FeeDev;
    uint256 public _FeesTotal = _FeeMarketing+_FeeDev+_FeeLiquidity+_FeeReflection+_FeeBurnTokens;

    // Fee for the auto LP and the all bnb wallets - used to process fees 
    uint256 private _liquidityAndPromoFee = _FeeMarketing+_FeeDev+_FeeLiquidity;


    

    // Wallet limits 

    // Max wallet holding (10% at launch)
    uint256 public _maxWalletToken = _tTotal.mul(10).div(100);
    uint256 private _previousMaxWalletToken = _maxWalletToken;

    // Maximum transaction amount (15% at launch)
    uint256 public _maxTxAmount = _tTotal.mul(15).div(100); 
    uint256 private _previousMaxTxAmount = _maxTxAmount;
                                     
    IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;
    bool public inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = true;
    
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
        
    );
    
    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }
    
    constructor () {
        _rOwned[owner()] = _rTotal;
        
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); 
        

        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());
        uniswapV2Router = _uniswapV2Router;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[Wallet_Token_Burn] = true; 
        _isExcludedFromFee[Wallet_Marketing] = true; 
        _isExcludedFromFee[Wallet_Dev] = true;

      
        
        emit Transfer(address(0), owner(), _tTotal);
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        if (_isExcluded[account]) return _tOwned[account];
        return tokenFromReflection(_rOwned[account]);
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    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);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    function isExcludedFromReward(address account) public view returns (bool) {
        return _isExcluded[account];
    }

    function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }



    /*

    Presale Functions 

    Presales have different settings, turn them on and off with the click on a button!

    */

    // Get ready for presale!
    function Presale_START() external onlyOwner {
        set_Swap_And_Liquify_Enabled(false);        
        removeAllFee();
        removeWalletLimits();
    }
    
    // Presale done! Set all fees 
    function Presale_END() external onlyOwner {
        set_Swap_And_Liquify_Enabled(true);
        restoreAllFee();
        restoreWalletLimits();
    }





   
    function deliver(uint256 tAmount) public {
        address sender = _msgSender();
        require(!_isExcluded[sender], "Excluded addresses cannot call this function");
        (uint256 rAmount,,,,,,) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }

    function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            (uint256 rAmount,,,,,,) = _getValues(tAmount);
            return rAmount;
        } else {
            (,uint256 rTransferAmount,,,,,) = _getValues(tAmount);
            return rTransferAmount;
        }
    }


    function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
        require(rAmount <= _rTotal, "Amount must be less than total reflections");
        uint256 currentRate =  _getRate();
        return rAmount.div(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 already included");
        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;
            }
        }
    }
    
   
  
    
    // Set a wallet address so that it does not have to pay transaction fees
    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }
    
    // Set a wallet address so that it has to pay transaction fees
    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }
    









    
    /*

    FEES  

    SAFETY FEATURES TO PROTECT BUYERS!

    The fee adjustments are limited to protect buyers


    1. The total fees can not go above 15% 

    */

    function _set_Fees(uint256 Liquidity, uint256 Marketing, uint256 Reflection, uint256 TokenBurn, uint256 Developer) external onlyOwner() {

        // Check fee limits

          require((Reflection+TokenBurn+Liquidity+Marketing+Developer) <= maxPossibleFee, "Total fees too high!");
          require(Reflection >= minPossibleReflect, "Reflection fee too low");
          require(Developer >= 1, "Developer fee too low");

        // Set the fees

          _FeeLiquidity = Liquidity;
          _FeeMarketing = Marketing;
          _FeeReflection = Reflection;
          _FeeBurnTokens = TokenBurn;
          _FeeDev = Developer;

        // For calculations and processing 

          _promoFee = _FeeMarketing+_FeeDev;
          _liquidityAndPromoFee = _FeeLiquidity+_promoFee;
          _FeesTotal = _FeeMarketing+_FeeDev+_FeeLiquidity+_FeeBurnTokens+_FeeReflection;

    }




    /*

    Updating Wallets

    */

    

    //Update the marketing wallet
    function Wallet_Update_Marketing(address payable wallet) public onlyOwner() {
        Wallet_Marketing = wallet;
        _isExcludedFromFee[Wallet_Marketing] = true;
    }

        //Update the dev wallet
    function Wallet_Update_Dev(address payable wallet) public onlyOwner() {
        Wallet_Dev = wallet;
        _isExcludedFromFee[Wallet_Dev] = true;
    }


    //Update the token burn and giveaway wallet
    function Wallet_Update_Token_Burn(address payable wallet) public onlyOwner() {
        Wallet_Token_Burn = wallet;
        _isExcludedFromFee[Wallet_Token_Burn] = true;
    }


   
    




    /*

    SwapAndLiquify Switches

    */
    
    // Toggle on and off to activate auto liquidity and the promo wallet 
    function set_Swap_And_Liquify_Enabled(bool true_or_false) public onlyOwner {
        swapAndLiquifyEnabled = true_or_false;
        emit SwapAndLiquifyEnabledUpdated(true_or_false);
    }

    // This will set the number of transactions required before the 'swapAndLiquify' function triggers
    function set_Number_Of_Transactions_Before_Liquify_Trigger(uint8 number_of_transactions) public onlyOwner {
        swapTrigger = number_of_transactions;
    }
    







    // This function is required so that the contract can receive BNB from pancakeswap
    receive() external payable {}





   
    









    /*

    Blacklist - This is used to block a person from buying - known bot users are added to this
    list prior to launch. We also check for people using snipe bots on the contract before we
    add liquidity and block these wallets. We like all of our buys to be natural and fair.

    */

    // Blacklist - block wallets (ADD - COMMA SEPARATE MULTIPLE WALLETS)
    function blacklist_Add_Wallets(address[] calldata addresses) external onlyOwner {
       
        uint256 startGas;
        uint256 gasUsed;

    for (uint256 i; i < addresses.length; ++i) {
        if(gasUsed < gasleft()) {
        startGas = gasleft();
        if(!_isBlacklisted[addresses[i]]){
        _isBlacklisted[addresses[i]] = true;}
        gasUsed = startGas - gasleft();
    }
    }
    }



    // Blacklist - block wallets (REMOVE - COMMA SEPARATE MULTIPLE WALLETS)
    function blacklist_Remove_Wallets(address[] calldata addresses) external onlyOwner {
       
        uint256 startGas;
        uint256 gasUsed;

    for (uint256 i; i < addresses.length; ++i) {
        if(gasUsed < gasleft()) {
        startGas = gasleft();
        if(_isBlacklisted[addresses[i]]){
        _isBlacklisted[addresses[i]] = false;}
        gasUsed = startGas - gasleft();
    }
    }
    }


    /*

    You can turn the blacklist restrictions on and off.

    During launch, it's a good idea to block known bot users from buying. But these are real people, so 
    when the contract is safe (and the price has increased) you can allow these wallets to buy/sell by setting
    noBlackList to false

    */

    //Blacklist Switch - Turn on/off blacklisted wallet restrictions 
    function blacklist_Switch(bool true_or_false) public onlyOwner {
        noBlackList = true_or_false;
    } 

  
    /*
    
    When sending tokens to another wallet (not buying or selling) if noFeeToTransfer is true there will be no fee

    */

    bool public noFeeToTransfer = true;

    // Option to set fee or no fee for transfer (just in case the no fee transfer option is exploited in future!)
    // True = there will be no fees when moving tokens around or giving them to friends! (There will only be a fee to buy or sell)
    // False = there will be a fee when buying/selling/tranfering tokens
    // Default is true
    function set_Transfers_Without_Fees(bool true_or_false) external onlyOwner {
        noFeeToTransfer = true_or_false;
    }







    /*

    SafeLaunch Features

    Wallet Limits

    Wallets are limited in two ways. The amount of tokens that can be purchased in one transaction
    and the total amount of tokens a wallet can buy. Limiting a wallet prevents one wallet from holding too
    many tokens, which can scare away potential buyers that worry that a whale might dump!

    */


    // Set the Max transaction amount (percent of total supply)
    function set_Max_Transaction_Percent(uint256 max_Transaction_Percent) external onlyOwner() {
        _maxTxAmount = _tTotal*max_Transaction_Percent/100;
    }
    
    
    // Set the maximum permitted wallet holding (percent of total supply)
     function set_Max_Wallet_Holding_Percent(uint256 max_Wallet_Holding_Percent) external onlyOwner() {
        _maxWalletToken = _tTotal*max_Wallet_Holding_Percent/100;
    }
    



    
    function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
        (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tDev) = _getTValues(tAmount);
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, tDev, _getRate());
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity, tDev);
    }

    function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
        uint256 tFee = calculateFeeReflection(tAmount);
        uint256 tLiquidity = calculateLiquidityAndPromoFee(tAmount);
        uint256 tDev = calculateFeeDevTokens(tAmount);
        uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(tDev);
        return (tTransferAmount, tFee, tLiquidity, tDev);
    }

    function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 tDev, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        uint256 rDev = tDev.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity).sub(rDev);
        return (rAmount, rTransferAmount, rFee);
    }

    function _getRate() private view returns(uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(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.sub(_rOwned[_excluded[i]]);
            tSupply = tSupply.sub(_tOwned[_excluded[i]]);
        }
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }
    
    function _takeLiquidity(uint256 tLiquidity) private {
        uint256 currentRate =  _getRate();
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
        if(_isExcluded[address(this)])
            _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
    }

    function _takeDev(uint256 tDev) private {
        uint256 currentRate =  _getRate();
        uint256 rDev = tDev.mul(currentRate);
        _rOwned[Wallet_Token_Burn] = _rOwned[Wallet_Token_Burn].add(rDev);
        if(_isExcluded[Wallet_Token_Burn])
            _tOwned[Wallet_Token_Burn] = _tOwned[Wallet_Token_Burn].add(tDev);
    }

    function _reflectFee(uint256 rFee, uint256 tFee) private {
        _rTotal = _rTotal.sub(rFee);
        _tFeeTotal = _tFeeTotal.add(tFee);
    }
    
    function calculateFeeReflection(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_FeeReflection).div(
            10**2
        );
    }

    function calculateFeeDevTokens(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_FeeBurnTokens).div(
            10**2
        );
    }

    function calculateLiquidityAndPromoFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_liquidityAndPromoFee).div(
            10**2
        );
    }






    // Remove all fees
    function removeAllFee() private {
        if(_FeeReflection == 0 && _FeeLiquidity == 0 && _FeeMarketing == 0 && _FeeDev == 0 && _FeeBurnTokens == 0) return;
        
        _previousFeeReflection = _FeeReflection;
        _previousFeeLiquidity = _FeeLiquidity;
        _previousFeeMarketing = _FeeMarketing;
        _previousFeeDev = _FeeDev;
        _previousFeeBurnTokens = _FeeBurnTokens;
        
        _FeeReflection = 0;
        _liquidityAndPromoFee = 0;
        _FeeLiquidity = 0;
        _FeeMarketing = 0;
        _FeeBurnTokens = 0;
        _FeeDev = 0;
        _promoFee = 0;
        _FeesTotal = 0;
    }
    
    // Restore all fees
    function restoreAllFee() private {

        _FeeReflection = _previousFeeReflection;
        _FeeLiquidity = _previousFeeLiquidity;
        _FeeMarketing = _previousFeeMarketing;
        _FeeDev = _previousFeeDev;
        _FeeBurnTokens = _previousFeeBurnTokens;


        _FeesTotal = _FeeMarketing+_FeeDev+_FeeLiquidity+_FeeReflection+_FeeBurnTokens;
        _promoFee = _FeeMarketing+_FeeDev;
        _liquidityAndPromoFee = _FeeMarketing+_FeeDev+_FeeLiquidity;
    }

    // Remove wallet limits (used during pre-sale)
    function removeWalletLimits() private {
        if(_maxWalletToken == _tTotal && _maxTxAmount == _tTotal) return;
        
        _previousMaxWalletToken = _maxWalletToken;
        _previousMaxTxAmount = _maxTxAmount;

        _maxTxAmount = _tTotal;
        _maxWalletToken = _tTotal;
    }

    // Restore wallet limits
    function restoreWalletLimits() private {

        _maxWalletToken = _previousMaxWalletToken;
        _maxTxAmount = _previousMaxTxAmount;

    }









    function _approve(address owner, address spender, uint256 amount) private {

        require(owner != address(0) && spender != address(0), "ERR: zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);

    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        

        /*

        TRANSACTION AND WALLET LIMITS

        */
        

        // Limit wallet total
        if (to != owner() &&
            to != Wallet_Token_Burn &&
            to != Wallet_Marketing &&
            to != Wallet_Burn &&
            to != address(this) &&
            to != uniswapV2Pair &&
            from != owner()){
            uint256 heldTokens = balanceOf(to);
            require((heldTokens + amount) <= _maxWalletToken,"You are trying to buy too many tokens. You have reached the limit for one wallet.");}


        // Limit the maximum number of tokens that can be bought or sold in one transaction
        if (from != owner() && to != owner())
            require(amount <= _maxTxAmount, "You are trying to buy more than the max transaction limit.");



        /*

        BLACKLIST RESTRICTIONS

        */
        
        if (noBlackList){
        require(!_isBlacklisted[from] && !_isBlacklisted[to], "This address is blacklisted. Transaction reverted.");}


        require(from != address(0) && to != address(0), "ERR: Using 0 address!");
        require(amount > 0, "Token value must be higher than zero.");


        // SwapAndLiquify is triggered after every X transactions - this number can be adjusted using swapTrigger
        

        if(
            txCount >= swapTrigger && 
            !inSwapAndLiquify &&
            from != uniswapV2Pair &&
            swapAndLiquifyEnabled 
            )
        {  
            
            txCount = 0;
            uint256 contractTokenBalance = balanceOf(address(this));
            if(contractTokenBalance > _maxTxAmount) {contractTokenBalance = _maxTxAmount;}
            if(contractTokenBalance > 0){
            swapAndLiquify(contractTokenBalance);
        }
        }



        
        bool takeFee = true;
         
        if(_isExcludedFromFee[from] || _isExcludedFromFee[to] || (noFeeToTransfer && from != uniswapV2Pair && to != uniswapV2Pair)){
            takeFee = false;
        }
        
        _tokenTransfer(from,to,amount,takeFee);
    }
    
    function sendToWallet(address payable wallet, uint256 amount) private {
            wallet.transfer(amount);
        }

    function precDiv(uint a, uint b, uint precision) internal pure returns (uint) {
     return a*(10**precision)/b;
         
    }






    function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
        
       
       uint256 splitPromo;
       uint256 tokensToPromo;
       uint256 splitM;
       uint256 totalBNB;
       

        // Processing tokens into BNB (Used for all external wallets and creating the liquidity pair)


        if (_promoFee != 0 && _FeeLiquidity != 0){


            // Calculate the correct ratio splits for marketing and developer
            splitPromo = precDiv(_promoFee,(_FeeLiquidity+_promoFee),2);
            tokensToPromo = contractTokenBalance*splitPromo/100;


        uint256 firstHalf = (contractTokenBalance-tokensToPromo)/2;
        uint256 secondHalf = contractTokenBalance-(tokensToPromo+firstHalf);
        uint256 balanceBeforeSwap = address(this).balance;
        swapTokensForEth(firstHalf+tokensToPromo);
        totalBNB = address(this).balance - balanceBeforeSwap;
        uint256 promoBNB = totalBNB*splitPromo/100;
        addLiquidity(secondHalf, (totalBNB-promoBNB));
        emit SwapAndLiquify(firstHalf, (totalBNB-promoBNB), secondHalf);
        totalBNB = address(this).balance;
        splitM = precDiv(_FeeMarketing,_promoFee,2);
        uint256 marketingBNB = totalBNB*splitM/100;
        sendToWallet(Wallet_Marketing, marketingBNB);
        sendToWallet(Wallet_Dev, (totalBNB-marketingBNB));

    } else if (_promoFee == 0 && _FeeLiquidity != 0){

        uint256 firstHalf = contractTokenBalance.div(2);
        uint256 secondHalf = contractTokenBalance.sub(firstHalf);
        uint256 balanceBeforeSwap = address(this).balance;
        swapTokensForEth(firstHalf);
        uint256 lpBNB = address(this).balance - balanceBeforeSwap;
        addLiquidity(secondHalf, lpBNB);
        emit SwapAndLiquify(firstHalf, lpBNB, secondHalf);

    } else if (_promoFee != 0 && _FeeLiquidity == 0){

        swapTokensForEth(contractTokenBalance);
        totalBNB = address(this).balance;
        splitM = precDiv(_FeeMarketing,_promoFee,2);
        uint256 marketingBNB = totalBNB*splitM/100;
        sendToWallet(Wallet_Marketing, marketingBNB);
        sendToWallet(Wallet_Dev, (totalBNB-marketingBNB));

    }
    }


    function swapTokensForEth(uint256 tokenAmount) private {

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, 
            path,
            address(this),
            block.timestamp
        );
    }


    /*

    Creating Auto Liquidity

    */

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {

        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, 
            0, 
            owner(), 
            block.timestamp
        );
    }    



    /*

    
    Purge Functions

    Sometimes, tokens or BNB can get trapped on a contract. Safemoon has about $1.7M trapped on it!
    So let's make sure that doesn't happen here. These functions allow you to manually purge any
    trapped BNB or tokens from the contract! Sorted! 


    */


    // Manually purge BNB from contract and send to wallets
    function process_Purge_BNBFromContract() public onlyOwner {
        // Do not trigger if already in swap
        require(!inSwapAndLiquify, "Processing liquidity, try to purge later.");       
        // Check BNB on contract
        uint256 bnbAmount = address(this).balance;
        // Check correct ratio to purge BNB
        uint256 splitCalcPromo = precDiv(_FeeMarketing,_promoFee,2);
        // Send BNB to marketing wallet
        uint256 marketingBNB = bnbAmount*splitCalcPromo/100;
        if (marketingBNB > 0){sendToWallet(Wallet_Marketing, marketingBNB);}
        // Send BNB to developer wallet
        uint256 developerBNB = bnbAmount-marketingBNB;
        if (developerBNB > 0){sendToWallet(Wallet_Dev, developerBNB);}
    }
    

    // Manual 'swapAndLiquify' Trigger (Enter the percent of the tokens that you'd like to send to swap and liquify)
    function process_SwapAndLiquify_Now (uint256 percent_Of_Tokens_To_Liquify) public onlyOwner {
        // Do not trigger if already in swap
        require(!inSwapAndLiquify, "Currently processing liquidity, try later."); 
        if (percent_Of_Tokens_To_Liquify > 100){percent_Of_Tokens_To_Liquify == 100;}
        uint256 tokensOnContract = balanceOf(address(this));
        uint256 sendTokens = tokensOnContract*percent_Of_Tokens_To_Liquify/100;
        swapAndLiquify(sendTokens);
    }




    /*

    Transfer Functions

    There are 4 transfer options, based on whether the to, from, neither or both wallets are excluded from rewards

    */


    function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
        
         
        
        if(!takeFee){
            removeAllFee();
            } else {
                txCount++;
            }
        
        if (_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferFromExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
            _transferToExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferStandard(sender, recipient, amount);
        } else if (_isExcluded[sender] && _isExcluded[recipient]) {
            _transferBothExcluded(sender, recipient, amount);
        } else {
            _transferStandard(sender, recipient, amount);
        }
        
        if(!takeFee)
            restoreAllFee();
    }

   function _transferStandard(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tDev) = _getValues(tAmount);
                
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidity(tLiquidity);
        _takeDev(tDev);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tDev) = _getValues(tAmount);
        
        
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);           
        _takeLiquidity(tLiquidity);
        _takeDev(tDev);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tDev) = _getValues(tAmount);
       
       
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);   
        _takeLiquidity(tLiquidity);
        _takeDev(tDev);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }
     function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tDev) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);        
        _takeLiquidity(tLiquidity);
        _takeDev(tDev);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

}