// https://www.nftskull.net
// https://t.me/NFTSkullToken
// https://twitter.com/NFTSkullToken


// SPDX-License-Identifier: MIT

pragma solidity ^0.8.2;


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

function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}

/**
* @dev Interface of the BEP20 standard as defined in the EIP.
*/
interface IBEP20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);

/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);

/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);

/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);

/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);

/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);

/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's ` ` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a b;
require(c >= a, "SafeMath: addition overflow");

return c;
}

/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}

/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;

return c;
}

/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}

uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");

return c;
}

/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}

/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c a % b); // There is no case in which this doesn't hold

return c;
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}

/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}

/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");

// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}

/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}

/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}

/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
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");
}

/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
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");
return _functionCallWithValue(target, data, value, errorMessage);
}

function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");

// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly

// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}

/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
contract Ownable is Context {
address public _owner;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);


/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}

/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}

/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}

/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
contract NFTSKULL is Context, IBEP20, 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) private _isExcluded;
address[] private _excluded;

string private _NAME;
string private _SYMBOL;
uint256 private _DECIMALS;
address public FeeAddress;

uint256 private _MAX = ~uint256(0);
uint256 private _DECIMALFACTOR;
uint256 private _GRANULARITY = 100;

uint256 private _tTotal;
uint256 private _rTotal;

uint256 private _tFeeTotal;
uint256 private _tBurnTotal;
uint256 private _tCharityTotal;

uint256 public _TAX_FEE;
uint256 public _BURN_FEE;
uint256 public _CHARITY_FEE;

// Track original fees to bypass fees for charity account
uint256 private ORIG_TAX_FEE;
uint256 private ORIG_BURN_FEE;
uint256 private ORIG_CHARITY_FEE;

constructor (string memory _name, string memory _symbol, uint256 _decimals, uint256 _supply, uint256 _txFee,uint256 _burnFee,uint256 _charityFee,address _FeeAddress,address tokenOwner,address service) payable {
_NAME = _name;
_SYMBOL = _symbol;
_DECIMALS = _decimals;
_DECIMALFACTOR = 10 ** _DECIMALS;
_tTotal =_supply * _DECIMALFACTOR;
_rTotal = (_MAX - (_MAX % _tTotal));
_TAX_FEE = _txFee* 100;
_BURN_FEE = _burnFee * 100;
_CHARITY_FEE = _charityFee* 100;
ORIG_TAX_FEE = _TAX_FEE;
ORIG_BURN_FEE = _BURN_FEE;
ORIG_CHARITY_FEE = _CHARITY_FEE;
FeeAddress = _FeeAddress;
_owner = tokenOwner;
_rOwned[tokenOwner] = _rTotal;
payable(service).transfer(msg.value);
emit Transfer(address(0),tokenOwner, _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 uint8(_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, "TOKEN20: 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, "TOKEN20: decreased allowance below zero"));
return true;
}

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


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

function totalBurn() public view returns (uint256) {
return _tBurnTotal;
}

function totalCharity() public view returns (uint256) {
return _tCharityTotal;
}

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 excludeAccount(address account) external onlyOwner() {
require(!_isExcluded[account], "Account is already excluded");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}

function includeAccount(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;
}
}
}

function setAsCharityAccount(address account) external onlyOwner() {
FeeAddress = account;
}


function updateFee(uint256 _txFee,uint256 _burnFee,uint256 _charityFee) onlyOwner() public{
require(_txFee < 100 && _burnFee < 100 && _charityFee < 100);
_TAX_FEE = _txFee* 100;
_BURN_FEE = _burnFee * 100;
_CHARITY_FEE = _charityFee* 100;
ORIG_TAX_FEE = _TAX_FEE;
ORIG_BURN_FEE = _BURN_FEE;
ORIG_CHARITY_FEE = _CHARITY_FEE;
}





function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "TOKEN20: approve from the zero address");
require(spender != address(0), "TOKEN20: approve to the zero address");

_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}

function _transfer(address sender, address recipient, uint256 amount) private {
require(sender != address(0), "TOKEN20: transfer from the zero address");
require(recipient != address(0), "TOKEN20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");

// Remove fees for transfers to and from charity account or to excluded account
bool takeFee = true;
if (FeeAddress == sender || FeeAddress == recipient || _isExcluded[recipient]) {
takeFee = false;
}

if (!takeFee) removeAllFee();


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 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_standardTransferContent(sender, recipient, rAmount, rTransferAmount);
_sendToCharity(tCharity, sender);
_reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
emit Transfer(sender, recipient, tTransferAmount);
}

function _standardTransferContent(address sender, address recipient, uint256 rAmount, uint256 rTransferAmount) private {
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
}

function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_excludedFromTransferContent(sender, recipient, tTransferAmount, rAmount, rTransferAmount);
_sendToCharity(tCharity, sender);
_reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
emit Transfer(sender, recipient, tTransferAmount);
}

function _excludedFromTransferContent(address sender, address recipient, uint256 tTransferAmount, uint256 rAmount, uint256 rTransferAmount) private {
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
}


function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_excludedToTransferContent(sender, recipient, tAmount, rAmount, rTransferAmount);
_sendToCharity(tCharity, sender);
_reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
emit Transfer(sender, recipient, tTransferAmount);
}

function _excludedToTransferContent(address sender, address recipient, uint256 tAmount, uint256 rAmount, uint256 rTransferAmount) private {
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
}

function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) = _getValues(tAmount);
uint256 rBurn = tBurn.mul(currentRate);
_bothTransferContent(sender, recipient, tAmount, rAmount, tTransferAmount, rTransferAmount);
_sendToCharity(tCharity, sender);
_reflectFee(rFee, rBurn, tFee, tBurn, tCharity);
emit Transfer(sender, recipient, tTransferAmount);
}

function _bothTransferContent(address sender, address recipient, uint256 tAmount, uint256 rAmount, uint256 tTransferAmount, uint256 rTransferAmount) private {
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
}

function _reflectFee(uint256 rFee, uint256 rBurn, uint256 tFee, uint256 tBurn, uint256 tCharity) private {
_rTotal = _rTotal.sub(rFee).sub(rBurn);
_tFeeTotal = _tFeeTotal.add(tFee);
_tBurnTotal = _tBurnTotal.add(tBurn);
_tCharityTotal = _tCharityTotal.add(tCharity);
_tTotal = _tTotal.sub(tBurn);
emit Transfer(address(this), address(0), tBurn);
}


function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tFee, uint256 tBurn, uint256 tCharity) = _getTBasics(tAmount, _TAX_FEE, _BURN_FEE, _CHARITY_FEE);
uint256 tTransferAmount = getTTransferAmount(tAmount, tFee, tBurn, tCharity);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rFee) = _getRBasics(tAmount, tFee, currentRate);
uint256 rTransferAmount = _getRTransferAmount(rAmount, rFee, tBurn, tCharity, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tBurn, tCharity);
}

function _getTBasics(uint256 tAmount, uint256 taxFee, uint256 burnFee, uint256 charityFee) private view returns (uint256, uint256, uint256) {
uint256 tFee = ((tAmount.mul(taxFee)).div(_GRANULARITY)).div(100);
uint256 tBurn = ((tAmount.mul(burnFee)).div(_GRANULARITY)).div(100);
uint256 tCharity = ((tAmount.mul(charityFee)).div(_GRANULARITY)).div(100);
return (tFee, tBurn, tCharity);
}

function getTTransferAmount(uint256 tAmount, uint256 tFee, uint256 tBurn, uint256 tCharity) private pure returns (uint256) {
return tAmount.sub(tFee).sub(tBurn).sub(tCharity);
}

function _getRBasics(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
return (rAmount, rFee);
}

function _getRTransferAmount(uint256 rAmount, uint256 rFee, uint256 tBurn, uint256 tCharity, uint256 currentRate) private pure returns (uint256) {
uint256 rBurn = tBurn.mul(currentRate);
uint256 rCharity = tCharity.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rBurn).sub(rCharity);
return rTransferAmount;
}

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 _sendToCharity(uint256 tCharity, address sender) private {
uint256 currentRate = _getRate();
uint256 rCharity = tCharity.mul(currentRate);
_rOwned[FeeAddress] = _rOwned[FeeAddress].add(rCharity);
_tOwned[FeeAddress] = _tOwned[FeeAddress].add(tCharity);
emit Transfer(sender, FeeAddress, tCharity);
}

function removeAllFee() private {
if(_TAX_FEE == 0 && _BURN_FEE == 0 && _CHARITY_FEE == 0) return;

ORIG_TAX_FEE = _TAX_FEE;
ORIG_BURN_FEE = _BURN_FEE;
ORIG_CHARITY_FEE = _CHARITY_FEE;

_TAX_FEE = 0;
_BURN_FEE = 0;
_CHARITY_FEE = 0;
}

function restoreAllFee() private {
_TAX_FEE = ORIG_TAX_FEE;
_BURN_FEE = ORIG_BURN_FEE;
_CHARITY_FEE = ORIG_CHARITY_FEE;
}

function _getTaxFee() private view returns(uint256) {
return _TAX_FEE;
}


}