Contract Name:
EmpireToken
Contract Source Code:
File 1 of 1 : EmpireToken
// File: @openzeppelin/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// 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 (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @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) {
return a + b;
}
/**
* @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 a - b;
}
/**
* @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) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting 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 a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting 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) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* 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) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
/**
* @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.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
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 {
_transferOwnership(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");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @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 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 `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, 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 `from` to `to` 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 from,
address to,
uint256 amount
) external returns (bool);
}
// File: contracts/35_EmpireToken.sol
pragma solidity 0.8.15;
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract EmpireToken is IERC20, Ownable{
using SafeMath for uint256;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public automatedMarketMakerPairs;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcluded;
address[] private _excluded;
struct BuyFee {
uint256 autoLp;
uint256 burn;
uint256 marketing;
uint256 tax;
uint256 team;
}
struct SellFee {
uint256 autoLp;
uint256 burn;
uint256 marketing;
uint256 tax;
uint256 team;
}
BuyFee public buyFee;
SellFee public sellFee;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 10**9 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
string private constant _name = "Empire Token";
string private constant _symbol = "EMPIRE";
uint8 private constant _decimals = 9;
uint256 public _taxFee = 0;
uint256 public _liquidityFee = 0;
uint256 public _burnFee = 0;
uint256 public _marketingFee = 0;
uint256 public _teamFee = 0;
address public marketingWallet;
address public immutable burnWallet;
address public liquidityWallet;
address public teamWallet;
// to accommodate lock or unlock balance by bridge
address public bridgeVault;
IUniswapV2Router02 public uniswapV2Router;
address public bridge;
bool private inSwapAndLiquify;
bool private shouldTakeFee = false;
bool public swapAndLiquifyEnabled = true;
bool public isTradingEnabled;
uint256 public numTokensSellToAddToLiquidity = 8000 * 10**9;
event LogSetAutomatedMarketMakerPair(
address indexed setter,
address pair,
bool enabled
);
event LogSwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event LogSwapAndDistribute(
uint256 forMarketing,
uint256 forLiquidity,
uint256 forBurn,
uint256 forTeam
);
event LogSwapAndLiquifyEnabledUpdated(address indexed setter, bool enabled);
event LogSetBridge(address indexed setter, address bridge);
event LogSetSwapTokensAmount(address indexed setter, uint256 amount);
event LogSetExcludeFromFee(
address indexed setter,
address account,
bool enabled
);
event LogTransfer(address from, address to, uint amount);
event LogExcludeFromReward(address indexed account);
event LogIncludeInReward(address indexed account);
event LogFallback(address from, uint256 amount);
event LogReceive(address from, uint256 amount);
event LogSetEnableTrading(bool enabled);
event LogSetMarketingWallet(
address indexed setter,
address marketingWallet
);
event LogSetTeamWallet(address indexed setter, address teamWallet);
event LogSetBuyFees(address indexed setter, BuyFee buyFee);
event LogSetSellFees(address indexed setter, SellFee sellFee);
event LogSetRouterAddress(address indexed setter, address router);
event LogUpdateLiquidityWallet(
address indexed setter,
address liquidityWallet
);
event LogWithdrawalETH(address indexed recipient, uint256 amount);
event LogWithdrawToken(
address indexed token,
address indexed recipient,
uint256 amount
);
event LogWithdrawal(address indexed recipient, uint256 tAmount);
event LogLockByBridge(address indexed account, uint256 tAmount);
event LogUnlockByBridge(address indexed account, uint256 tAmount);
event LogSetBridgeVault(address setter, address _bridgeVault);
event LogDeliver(address indexed from, uint256 tAmount);
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor(
address _router,
address _marketingWallet,
address _teamWallet,
address _bridgeVault
) payable {
_rOwned[_msgSender()] = _rTotal;
require(_router!=address(0) && _marketingWallet!=address(0) && _teamWallet!=address(0) && _bridgeVault!=address(0), "Zero address");
marketingWallet = _marketingWallet;
burnWallet = address(0xdead);
liquidityWallet = owner();
teamWallet = _teamWallet;
// exclude bridge Vault from receive reflection
bridgeVault = _bridgeVault;
_isExcluded[bridgeVault] = true;
_excluded.push(bridgeVault);
// exclude burn address from receive reflection
_isExcluded[burnWallet] = true;
_excluded.push(burnWallet);
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_router);
// Create a uniswap pair for this new token
address pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(
address(this),
_uniswapV2Router.WETH()
);
setAutomatedMarketMakerPair(pair, true);
// set the rest of the contract variables
uniswapV2Router = _uniswapV2Router;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[owner()] = true;
buyFee.autoLp = 4;
buyFee.burn = 0;
buyFee.marketing = 3;
buyFee.tax = 2;
buyFee.team = 1;
sellFee.autoLp = 4;
sellFee.burn = 0;
sellFee.marketing = 3;
sellFee.tax = 2;
sellFee.team = 1;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function setAutomatedMarketMakerPair(address pair, bool enabled)
public
onlyOwner
{
require(automatedMarketMakerPairs[pair] != enabled, "Pair Already Enabled");
automatedMarketMakerPairs[pair] = enabled;
emit LogSetAutomatedMarketMakerPair(msg.sender, pair, enabled);
}
function name() external view returns (string memory) {
return _name;
}
function symbol() external view returns (string memory) {
return _symbol;
}
function decimals() external view returns (uint8) {
return _decimals;
}
function totalSupply() external view override returns (uint256) {
return _tTotal;
}
/**
* @dev because bridgeVault not receive reward
*/
function circulatingSupply() external view returns (uint256) {
return _tTotal.sub(_tOwned[bridgeVault]).sub(_tOwned[burnWallet]);
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative). Referenced from SafeMath library to preserve transaction integrity.
*/
function balanceCheck(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a.sub(b);
return c;
}
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)
external
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
emit LogTransfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
external
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
external
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) external override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
balanceCheck(
_allowances[sender][_msgSender()],
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function increaseAllowance(address spender, uint256 addedValue)
external
virtual
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender].add(addedValue)
);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
external
virtual
returns (bool)
{
_approve(
_msgSender(),
spender,
balanceCheck(
_allowances[_msgSender()][spender],
subtractedValue,
"ERC20: decreased allowance below zero"
)
);
return true;
}
function isExcludedFromReward(address account)
external
view
returns (bool)
{
return _isExcluded[account];
}
function totalFees() external view returns (uint256) {
return _tFeeTotal;
}
// reflection by action of volunteer
function deliver(uint256 tAmount) external {
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);
emit LogDeliver(msg.sender, tAmount);
}
function reflectionFromToken(uint256 tAmount, bool deductTransferFee)
external
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) external onlyOwner {
require(!_isExcluded[account], "Account is already excluded");
if (_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
emit LogExcludeFromReward(account);
}
function includeInReward(address account) external onlyOwner {
require(account != bridgeVault, "Bridge Vault can't receive reward");
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;
}
}
emit LogIncludeInReward(account);
}
//to receive ETH from uniswapV2Router when swapping
receive() external payable {
emit LogReceive(msg.sender, msg.value);
}
fallback() external payable {
emit LogFallback(msg.sender, msg.value);
}
// reflection
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
function _getValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
(
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tMarketing,
uint256 tBurn
) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(
tAmount,
tFee,
tLiquidity,
tMarketing,
tBurn,
_getRate()
);
return (
rAmount,
rTransferAmount,
rFee,
tTransferAmount,
tFee,
tLiquidity
);
}
function _getTValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256
)
{
uint256 tFee = calculateTaxFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tMarketing = calculateMarketingFee(tAmount);
uint256 tBurn = calculateBurnFee(tAmount);
uint256 tTeam = calculateTeamFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity);
tTransferAmount = tTransferAmount.sub(tMarketing).sub(tBurn).sub(tTeam);
return (tTransferAmount, tFee, tLiquidity, tMarketing, tBurn);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tLiquidity,
uint256 tMarketing,
uint256 tBurn,
uint256 currentRate
)
private
view
returns (
uint256,
uint256,
uint256
)
{
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rLiquidity = tLiquidity.mul(currentRate);
uint256 rMarketing = tMarketing.mul(currentRate);
uint256 rBurn = tBurn.mul(currentRate);
uint256 tTeam = calculateTeamFee(tAmount);
uint256 rTeam = tTeam.mul(currentRate);
uint256 totalDeduction = rFee.add(rLiquidity).add(rMarketing).add(rBurn).add(rTeam);
uint256 rTransferAmount = rAmount.sub(totalDeduction);
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 _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
if (_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tTeam);
}
function _takeMarketingAndBurn(uint256 tMarketing, uint256 tBurn) private {
uint256 currentRate = _getRate();
uint256 rMarketing = tMarketing.mul(currentRate);
uint256 rBurn = tBurn.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rBurn).add(rMarketing);
if (_isExcluded[address(this)])
_tOwned[address(this)] =
_tOwned[address(this)] +
(tMarketing + tBurn);
}
function calculateTaxFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_taxFee).div(10**2);
}
function calculateLiquidityFee(uint256 _amount)
private
view
returns (uint256)
{
return _amount.mul(_liquidityFee).div(10**2);
}
function calculateBurnFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_burnFee).div(10**2);
}
function calculateMarketingFee(uint256 _amount)
private
view
returns (uint256)
{
return _amount.mul(_marketingFee).div(10**2);
}
function calculateTeamFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_teamFee).div(10**2);
}
function restoreAllFee() private {
_taxFee = 0;
_liquidityFee = 0;
_marketingFee = 0;
_burnFee = 0;
_teamFee = 0;
}
function setBuyFee() private {
_taxFee = buyFee.tax;
_liquidityFee = buyFee.autoLp;
_marketingFee = buyFee.marketing;
_burnFee = buyFee.burn;
_teamFee = buyFee.team;
}
function setSellFee() private {
_taxFee = sellFee.tax;
_liquidityFee = sellFee.autoLp;
_marketingFee = sellFee.marketing;
_burnFee = sellFee.burn;
_teamFee = sellFee.team;
}
function setEnableTrading(bool enable) external onlyOwner {
require(isTradingEnabled != enable, "Already set Enable");
isTradingEnabled = enable;
emit LogSetEnableTrading(isTradingEnabled);
}
function setBridgeVault (address _bridgeVault) external onlyOwner {
require(_bridgeVault != address(0), "Invalid address");
require(bridgeVault != _bridgeVault, "Already set to this value");
bridgeVault = _bridgeVault;
emit LogSetBridgeVault(msg.sender, bridgeVault);
}
function isExcludedFromFee(address account) external view returns (bool) {
return _isExcludedFromFee[account];
}
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");
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >=
numTokensSellToAddToLiquidity;
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
!automatedMarketMakerPairs[from] &&
swapAndLiquifyEnabled &&
from != liquidityWallet &&
to != liquidityWallet
) {
contractTokenBalance = numTokensSellToAddToLiquidity;
swapAndDistribute(contractTokenBalance);
}
//transfer amount, it will take tax, Burn, liquidity fee
_tokenTransfer(from, to, amount);
}
function swapAndDistribute(uint256 contractTokenBalance)
private
lockTheSwap
{
uint256 total = buyFee.marketing
.add(sellFee.marketing)
.add(buyFee.autoLp)
.add(sellFee.autoLp)
.add(buyFee.burn)
.add(sellFee.burn)
.add(buyFee.team)
.add(sellFee.team);
uint256 lp = buyFee.autoLp + sellFee.autoLp;
uint256 forLiquidity = contractTokenBalance.mul(lp).div(total);
swapAndLiquify(forLiquidity);
uint256 totalBurn = buyFee.burn + sellFee.burn;
uint256 forBurn = contractTokenBalance.mul(totalBurn).div(total);
sendToBurn(forBurn);
uint256 marketingFee = buyFee.marketing + sellFee.marketing;
uint256 forMarketing = contractTokenBalance.mul(marketingFee).div(total);
sendToMarketing(forMarketing);
uint256 teamFee = buyFee.team + sellFee.team;
uint256 forTeam = contractTokenBalance.mul(teamFee).div(total);
sendToTeam(forTeam);
emit LogSwapAndDistribute(forMarketing, forLiquidity, forBurn, forTeam);
}
function sendToBurn(uint256 tBurn) private {
uint256 currentRate = _getRate();
uint256 rBurn = tBurn.mul(currentRate);
_rOwned[burnWallet] = _rOwned[burnWallet].add(rBurn);
_rOwned[address(this)] = _rOwned[address(this)].sub(rBurn);
if (_isExcluded[burnWallet])
_tOwned[burnWallet] = _tOwned[burnWallet].add(tBurn);
if (_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].sub(tBurn);
emit Transfer(address(this), burnWallet, tBurn);
}
function sendToTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[teamWallet] = _rOwned[teamWallet].add(rTeam);
_rOwned[address(this)] = _rOwned[address(this)].sub(rTeam);
if (_isExcluded[teamWallet])
_tOwned[teamWallet] = _tOwned[teamWallet].add(tTeam);
if (_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].sub(tTeam);
emit Transfer(address(this), teamWallet, tTeam);
}
function sendToMarketing(uint256 tMarketing) private {
uint256 currentRate = _getRate();
uint256 rMarketing = tMarketing.mul(currentRate);
_rOwned[marketingWallet] = _rOwned[marketingWallet].add(rMarketing);
_rOwned[address(this)] = _rOwned[address(this)].sub(rMarketing);
if (_isExcluded[marketingWallet])
_tOwned[marketingWallet] = _tOwned[marketingWallet].add(tMarketing);
if (_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].sub(tMarketing);
emit Transfer(address(this), marketingWallet, tMarketing);
}
function swapAndLiquify(uint256 tokens) private {
uint256 half = tokens.div(2);
uint256 otherHalf = tokens.sub(half);
uint256 initialBalance = address(this).balance;
swapTokensForETH(half);
uint256 newBalance = address(this).balance.sub(initialBalance);
addLiquidity(otherHalf, newBalance);
emit LogSwapAndLiquify(half, newBalance, otherHalf);
}
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
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
liquidityWallet,
block.timestamp
);
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount
) private {
if (!_isExcludedFromFee[sender] && !_isExcludedFromFee[recipient]) {
require(isTradingEnabled, "Trading is disabled");
if (automatedMarketMakerPairs[sender] == true) {
shouldTakeFee = true;
setBuyFee();
} else if (automatedMarketMakerPairs[recipient] == true) {
shouldTakeFee = true;
setSellFee();
}
}
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]) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}
if (shouldTakeFee == true) {
shouldTakeFee = false;
restoreAllFee();
}
}
function _takeFee(
address sender,
uint256 tAmount,
uint256 tLiquidity,
uint256 tFee,
uint256 rFee
) private {
if (shouldTakeFee == true) {
uint256 tMarketing = calculateMarketingFee(tAmount);
uint256 tBurn = calculateBurnFee(tAmount);
uint256 tTeam = calculateTeamFee(tAmount);
_takeLiquidity(tLiquidity);
_takeMarketingAndBurn(tMarketing, tBurn);
_takeTeam(tTeam);
// reflection
_reflectFee(rFee, tFee);
// rFee, tFee
// `tFee` will miss Transfer event and then with the `tFee`, reflect to all token holders.
emit Transfer(
sender,
address(this),
tLiquidity + tMarketing + tBurn + tTeam
);
}
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tLiquidity
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeFee(sender, tAmount, tLiquidity, tFee, rFee);
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
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeFee(sender, tAmount, tLiquidity, tFee, rFee);
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
) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeFee(sender, tAmount, tLiquidity, tFee, rFee);
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
) = _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);
_takeFee(sender, tAmount, tLiquidity, tFee, rFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function setExcludeFromFee(address account, bool enabled)
external
onlyOwner
{
require(account != address(0),"Zero Address");
require(_isExcludedFromFee[account] != enabled,"Already enabled");
_isExcludedFromFee[account] = enabled;
emit LogSetExcludeFromFee(msg.sender, account, enabled);
}
function setMarketingWallet(address newWallet) external onlyOwner {
require(newWallet != address(0), "Zero Address");
require(newWallet != marketingWallet, "Same Address");
marketingWallet = newWallet;
emit LogSetMarketingWallet(msg.sender, marketingWallet);
}
function setTeamWallet(address newWallet) external onlyOwner {
require(newWallet != address(0), "Zero Address");
require(newWallet != teamWallet, "Same Address");
teamWallet = newWallet;
emit LogSetTeamWallet(msg.sender, teamWallet);
}
function setBuyFees(
uint256 _lp,
uint256 _marketing,
uint256 _burn,
uint256 _tax,
uint256 _team
) external onlyOwner {
require(_lp + _marketing + _burn + _tax + _team <= 50, "Max total fee is 50%");
require(!(buyFee.autoLp == _lp && buyFee.marketing == _marketing && buyFee.burn == _burn && buyFee.tax == _tax && buyFee.team == _team), "Nothing is changed");
buyFee.autoLp = _lp;
buyFee.marketing = _marketing;
buyFee.burn = _burn;
buyFee.tax = _tax;
buyFee.team = _team;
emit LogSetBuyFees(msg.sender, buyFee);
}
function setSellFees(
uint256 _lp,
uint256 _marketing,
uint256 _burn,
uint256 _tax,
uint256 _team
) external onlyOwner {
require(_lp + _marketing + _burn + _tax + _team <= 50, "Max total fee is 50%");
sellFee.autoLp = _lp;
sellFee.marketing = _marketing;
sellFee.burn = _burn;
sellFee.tax = _tax;
sellFee.team = _team;
emit LogSetSellFees(msg.sender, sellFee);
}
function setRouterAddress(address newRouter) external onlyOwner {
require(newRouter != address(0), "Zero Address");
require(newRouter != address(uniswapV2Router), "Same Address");
uniswapV2Router = IUniswapV2Router02(newRouter);
emit LogSetRouterAddress(msg.sender, newRouter);
}
function setSwapAndLiquifyEnabled(bool _enabled) external onlyOwner {
require(_enabled != swapAndLiquifyEnabled, "Already enabled");
swapAndLiquifyEnabled = _enabled;
emit LogSwapAndLiquifyEnabledUpdated(msg.sender, _enabled);
}
function setSwapTokensAmount(uint256 amount) external onlyOwner {
require(amount != numTokensSellToAddToLiquidity, "Same Amount");
numTokensSellToAddToLiquidity = amount;
emit LogSetSwapTokensAmount(msg.sender, amount);
}
function updateLiquidityWallet(address newLiquidityWallet)
external
onlyOwner
{
require(newLiquidityWallet != address(0), "Zero Address");
require(newLiquidityWallet != liquidityWallet,"The liquidity wallet is already this address" );
liquidityWallet = newLiquidityWallet;
emit LogUpdateLiquidityWallet(msg.sender, newLiquidityWallet);
}
function withdrawETH(address payable recipient, uint256 amount)
external
onlyOwner
{
require(recipient != address(0), "Zero Address");
require(amount <= (address(this)).balance, "Incufficient funds");
recipient.transfer(amount);
emit LogWithdrawalETH(recipient, amount);
}
/**
* @notice Should not be withdrawn scam token or this Empire token.
* Use `withdraw` function to withdraw this Empire token.
*/
function withdrawToken(
IERC20 token,
address recipient,
uint256 amount
) external onlyOwner {
require(address(token) != address(0), "Zero Address of Token");
require(recipient != address(0), "Zero Address of Recepient");
require(amount <= token.balanceOf(address(this)), "Incufficient funds");
require(token.transfer(recipient, amount), "Transfer Fail");
emit LogWithdrawToken(address(token), recipient, amount);
}
/**
* @notice The onlyOwner will withdraw this token to `recipient`.
*/
function withdraw(address recipient, uint256 tAmount) external onlyOwner {
require(recipient != address(0), "Zero Address");
require(tAmount > 0, "Withdrawal amount must be greater than zero");
if (_isExcluded[address(this)] && !_isExcluded[recipient]) {
_transferFromExcluded(address(this), recipient, tAmount);
} else if (!_isExcluded[address(this)] && _isExcluded[recipient]) {
_transferToExcluded(address(this), recipient, tAmount);
} else if (_isExcluded[address(this)] && _isExcluded[recipient]) {
_transferBothExcluded(address(this), recipient, tAmount);
} else {
_transferStandard(address(this), recipient, tAmount);
}
emit LogWithdrawal(recipient, tAmount);
}
modifier onlyBridge() {
require(msg.sender == bridge, "Only bridge can perform this action");
_;
}
function setBridge(address _bridge) external onlyOwner {
require(_bridge != address(0), "Zero Address");
require(bridge != _bridge, "Same Bridge!");
bridge = _bridge;
emit LogSetBridge(msg.sender, bridge);
}
/**
* @dev need approval from account
*/
function lock(address account, uint256 tAmount) external onlyBridge {
require(account != address(0), "Zero address");
require(tAmount > 0, "Lock amount must be greater than zero");
require(tAmount <= balanceOf(account), "Incufficient funds");
require(_allowances[account][_msgSender()] >= tAmount, "ERC20: transfer amount exceeds allowance");
if (!_isExcluded[account]) {
_transferToExcluded(account, bridgeVault, tAmount);
} else {
_transferBothExcluded(account, bridgeVault, tAmount);
}
emit LogLockByBridge(account, tAmount);
}
/**
* @dev no need approval, because bridgeVault balance is controlled by EMPIRE
*/
function unlock(address account, uint256 tAmount) external onlyBridge {
require(account != address(0), "Zero address");
require(tAmount > 0, "Unlock amount must be greater than zero");
require(tAmount <= balanceOf(bridgeVault), "Incufficient funds");
if (!_isExcluded[account]) {
_transferFromExcluded(bridgeVault, account, tAmount);
} else {
_transferBothExcluded(bridgeVault, account, tAmount);
}
emit LogUnlockByBridge(account, tAmount);
}
}