Contract Source Code:
File 1 of 1 : Evermars
//EVERMARS
//V3
//
//https://evermars.io/
//https://t.me/EVERMARS_PORTAL
//https://twitter.com/EverMarsERC20
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.19;
/**
* @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;
}
}
/**
* @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);
}
/**
* @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);
}
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address UNISWAP_V2_PAIR);
}
contract Evermars is IERC20, Ownable {
/* -------------------------------------------------------------------------- */
/* events */
/* -------------------------------------------------------------------------- */
event Reflect(uint256 amountReflected, uint256 newTotalProportion);
/* -------------------------------------------------------------------------- */
/* constants */
/* -------------------------------------------------------------------------- */
address constant DEAD = 0x000000000000000000000000000000000000dEaD;
address constant ZERO = 0x0000000000000000000000000000000000000000;
uint256 constant MAX_FEE = 25;
/* -------------------------------------------------------------------------- */
/* states */
/* -------------------------------------------------------------------------- */
IUniswapV2Router02 public constant UNISWAP_V2_ROUTER =
IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address public immutable UNISWAP_V2_PAIR;
struct Fee {
uint8 reflection;
uint8 marketing;
uint8 lp;
uint8 buyback;
uint8 burn;
uint128 total;
}
string _name = "Evermars";
string _symbol = "EMARS";
uint256 _totalSupply = 1_000_000_000_000 ether;
uint256 public _maxTxAmount = _totalSupply * 2 / 100;
/* rOwned = ratio of tokens owned relative to circulating supply (NOT total supply, since circulating <= total) */
mapping(address => uint256) public _rOwned;
uint256 public _totalProportion = _totalSupply;
mapping(address => mapping(address => uint256)) _allowances;
bool public limitsEnabled = true;
mapping(address => bool) isFeeExempt;
mapping(address => bool) isTxLimitExempt;
Fee public buyFee = Fee({reflection: 1, marketing: 2, lp: 2, buyback: 0, burn: 0, total: 5});
Fee public sellFee = Fee({reflection: 1, marketing: 2, lp: 2, buyback: 0, burn: 0, total: 5});
address private marketingFeeReceiver;
address private lpFeeReceiver;
address private buybackFeeReceiver;
bool public claimingFees = true;
uint256 public swapThreshold = (_totalSupply * 2) / 1000;
bool inSwap;
mapping(address => bool) public blacklists;
/* -------------------------------------------------------------------------- */
/* modifiers */
/* -------------------------------------------------------------------------- */
modifier swapping() {
inSwap = true;
_;
inSwap = false;
}
/* -------------------------------------------------------------------------- */
/* constructor */
/* -------------------------------------------------------------------------- */
constructor() {
// create uniswap pair
address _uniswapPair =
IUniswapV2Factory(UNISWAP_V2_ROUTER.factory()).createPair(address(this), UNISWAP_V2_ROUTER.WETH());
UNISWAP_V2_PAIR = _uniswapPair;
_allowances[address(this)][address(UNISWAP_V2_ROUTER)] = type(uint256).max;
_allowances[address(this)][tx.origin] = type(uint256).max;
isTxLimitExempt[address(this)] = true;
isTxLimitExempt[address(UNISWAP_V2_ROUTER)] = true;
isTxLimitExempt[_uniswapPair] = true;
isTxLimitExempt[tx.origin] = true;
isFeeExempt[tx.origin] = true;
marketingFeeReceiver = 0xDd7e5E6Ea82863456f1D3510BF45d10E445Bff2e;
lpFeeReceiver = 0xDd7e5E6Ea82863456f1D3510BF45d10E445Bff2e;
buybackFeeReceiver = 0xDd7e5E6Ea82863456f1D3510BF45d10E445Bff2e;
_rOwned[tx.origin] = _totalSupply;
emit Transfer(address(0), tx.origin, _totalSupply);
}
receive() external payable {}
/* -------------------------------------------------------------------------- */
/* ERC20 */
/* -------------------------------------------------------------------------- */
function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function approveMax(address spender) external returns (bool) {
return approve(spender, type(uint256).max);
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if (_allowances[sender][msg.sender] != type(uint256).max) {
require(_allowances[sender][msg.sender] >= amount, "ERC20: insufficient allowance");
_allowances[sender][msg.sender] = _allowances[sender][msg.sender] - amount;
}
return _transferFrom(sender, recipient, amount);
}
/* -------------------------------------------------------------------------- */
/* views */
/* -------------------------------------------------------------------------- */
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
function decimals() external pure returns (uint8) {
return 18;
}
function name() external view returns (string memory) {
return _name;
}
function symbol() external view returns (string memory) {
return _symbol;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function allowance(address holder, address spender) external view override returns (uint256) {
return _allowances[holder][spender];
}
function tokensToProportion(uint256 tokens) public view returns (uint256) {
return tokens * _totalProportion / _totalSupply;
}
function tokenFromReflection(uint256 proportion) public view returns (uint256) {
return proportion * _totalSupply / _totalProportion;
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply - balanceOf(DEAD) - balanceOf(ZERO);
}
/* -------------------------------------------------------------------------- */
/* owners */
/* -------------------------------------------------------------------------- */
function clearStuckBalance() external onlyOwner {
(bool success,) = payable(msg.sender).call{value: address(this).balance}("");
require(success);
}
function clearStuckToken() external onlyOwner {
_transferFrom(address(this), msg.sender, balanceOf(address(this)));
}
function setSwapBackSettings(bool _enabled, uint256 _amount) external onlyOwner {
claimingFees = _enabled;
swapThreshold = _amount;
}
function changeFees(
uint8 reflectionFeeBuy,
uint8 marketingFeeBuy,
uint8 lpFeeBuy,
uint8 buybackFeeBuy,
uint8 burnFeeBuy,
uint8 reflectionFeeSell,
uint8 marketingFeeSell,
uint8 lpFeeSell,
uint8 buybackFeeSell,
uint8 burnFeeSell
) external onlyOwner {
uint128 __totalBuyFee = reflectionFeeBuy + marketingFeeBuy + lpFeeBuy + buybackFeeBuy + burnFeeBuy;
uint128 __totalSellFee = reflectionFeeSell + marketingFeeSell + lpFeeSell + buybackFeeSell + burnFeeSell;
require(__totalBuyFee <= MAX_FEE, "Buy fees too high");
require(__totalSellFee <= MAX_FEE, "Sell fees too high");
buyFee = Fee({
reflection: reflectionFeeBuy,
marketing: reflectionFeeBuy,
lp: reflectionFeeBuy,
buyback: reflectionFeeBuy,
burn: burnFeeBuy,
total: __totalBuyFee
});
sellFee = Fee({
reflection: reflectionFeeSell,
marketing: reflectionFeeSell,
lp: reflectionFeeSell,
buyback: reflectionFeeSell,
burn: burnFeeSell,
total: __totalSellFee
});
}
function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
isFeeExempt[holder] = exempt;
}
function setIsTxLimitExempt(address holder, bool exempt) external onlyOwner {
isTxLimitExempt[holder] = exempt;
}
function setFeeReceivers(address m_, address lp_, address b_) external onlyOwner {
marketingFeeReceiver = m_;
lpFeeReceiver = lp_;
buybackFeeReceiver = b_;
}
function setMaxTxBasisPoint(uint256 p_) external onlyOwner {
_maxTxAmount = _totalSupply * p_ / 10000;
}
function setLimitsEnabled(bool e_) external onlyOwner {
limitsEnabled = e_;
}
function blacklist(address _address, bool _isBlacklisting) external onlyOwner {
blacklists[_address] = _isBlacklisting;
}
/* -------------------------------------------------------------------------- */
/* private */
/* -------------------------------------------------------------------------- */
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
require(!blacklists[recipient] && !blacklists[sender], "Blacklisted");
if (inSwap) {
return _basicTransfer(sender, recipient, amount);
}
if (limitsEnabled && !isTxLimitExempt[sender] && !isTxLimitExempt[recipient]) {
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
}
if (_shouldSwapBack()) {
_swapBack();
}
uint256 proportionAmount = tokensToProportion(amount);
require(_rOwned[sender] >= proportionAmount, "Insufficient Balance");
_rOwned[sender] = _rOwned[sender] - proportionAmount;
uint256 proportionReceived = _shouldTakeFee(sender, recipient)
? _takeFeeInProportions(sender == UNISWAP_V2_PAIR ? true : false, sender, proportionAmount)
: proportionAmount;
_rOwned[recipient] = _rOwned[recipient] + proportionReceived;
emit Transfer(sender, recipient, tokenFromReflection(proportionReceived));
return true;
}
function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
uint256 proportionAmount = tokensToProportion(amount);
require(_rOwned[sender] >= proportionAmount, "Insufficient Balance");
_rOwned[sender] = _rOwned[sender] - proportionAmount;
_rOwned[recipient] = _rOwned[recipient] + proportionAmount;
emit Transfer(sender, recipient, amount);
return true;
}
function _takeFeeInProportions(bool buying, address sender, uint256 proportionAmount) internal returns (uint256) {
Fee memory __buyFee = buyFee;
Fee memory __sellFee = sellFee;
uint256 proportionFeeAmount =
buying == true ? proportionAmount * __buyFee.total / 100 : proportionAmount * __sellFee.total / 100;
// reflect
uint256 proportionReflected = buying == true
? proportionFeeAmount * __buyFee.reflection / __buyFee.total
: proportionFeeAmount * __sellFee.reflection / __sellFee.total;
_totalProportion = _totalProportion - proportionReflected;
// take fees
uint256 _proportionToContract = proportionFeeAmount - proportionReflected;
if (_proportionToContract > 0) {
_rOwned[address(this)] = _rOwned[address(this)] + _proportionToContract;
emit Transfer(sender, address(this), tokenFromReflection(_proportionToContract));
}
emit Reflect(proportionReflected, _totalProportion);
return proportionAmount - proportionFeeAmount;
}
function _shouldSwapBack() internal view returns (bool) {
return msg.sender != UNISWAP_V2_PAIR && !inSwap && claimingFees && balanceOf(address(this)) >= swapThreshold;
}
function _swapBack() internal swapping {
Fee memory __sellFee = sellFee;
uint256 __swapThreshold = swapThreshold;
uint256 amountToBurn = __swapThreshold * __sellFee.burn / __sellFee.total;
uint256 amountToSwap = __swapThreshold - amountToBurn;
approve(address(UNISWAP_V2_ROUTER), amountToSwap);
// burn
_transferFrom(address(this), DEAD, amountToBurn);
// swap
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = UNISWAP_V2_ROUTER.WETH();
UNISWAP_V2_ROUTER.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap, 0, path, address(this), block.timestamp
);
uint256 amountETH = address(this).balance;
uint256 totalSwapFee = __sellFee.total - __sellFee.reflection - __sellFee.burn;
uint256 amountETHMarketing = amountETH * __sellFee.marketing / totalSwapFee;
uint256 amountETHLP = amountETH * __sellFee.lp / totalSwapFee;
uint256 amountETHBuyback = amountETH * __sellFee.buyback / totalSwapFee;
// send
(bool tmpSuccess,) = payable(marketingFeeReceiver).call{value: amountETHMarketing}("");
(tmpSuccess,) = payable(lpFeeReceiver).call{value: amountETHLP}("");
(tmpSuccess,) = payable(buybackFeeReceiver).call{value: amountETHBuyback}("");
}
function _shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return !isFeeExempt[sender] && !isFeeExempt[recipient];
}
}