File 1 of 1: Komodo.sol
pragma solidity ^0.8.4;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
pragma solidity ^0.8.0;
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
pragma solidity ^0.8.4;
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);
}
pragma solidity ^0.8.0;
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
pragma solidity ^0.8.4;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
pragma solidity ^0.8.4;
contract ERC20Ownable is Context {
address private _owner;
address private _previousOwner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view 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);
}
}
pragma solidity ^0.8.7;
contract Komodo is IERC20,Context,ERC20Ownable {
using SafeMath for uint256;
IUniswapV2Router02 private uniswapV2Router;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1e14 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _maxTxAmount = _tTotal;
uint256 private _tFeeTotal;
uint256 private _taxFee1;
uint256 private _taxFee2;
bool private OpenTrades;
bool private inSwap = false;
bool private enableSwap = false;
bool private coolDownEnabled = false;
mapping (address => uint256) private _ownAmt;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isBlackListed;
mapping (address => uint) private _setCoolDown;
mapping (address => bool) private _noFeeList;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier swapLock {
inSwap = true;
_;
inSwap = false;
}
address payable private _taxWallet;
address private uniswapV2Pair;
string private constant _name = "KOMODO INU";
string private constant _symbol = "KOMODO";
uint8 private constant _decimal = 9;
constructor () {
_taxWallet = payable(0xd520Bc27cAfe04df2E8B98AEa69715536a2724a4);
_ownAmt[_msgSender()] = _rTotal;
_noFeeList[owner()] = true;
_noFeeList[address(this)] = true;
_noFeeList[_taxWallet] = true;
blackList(0x91B305F0890Fd0534B66D8d479da6529C35A3eeC);
blackList(0x7F5622afb5CEfbA39f96CA3b2814eCF0E383AAA4);
blackList(0xfcf6a3d7eb8c62a5256a020e48f153c6D5Dd6909);
blackList(0x74BC89a9e831ab5f33b90607Dd9eB5E01452A064);
blackList(0x1F53592C3aA6b827C64C4a3174523182c52Ece84);
blackList(0x460545C01c4246194C2e511F166D84bbC8a07608);
blackList(0x2E5d67a1d15ccCF65152B3A8ec5315E73461fBcd);
blackList(0xb5aF12B837aAf602298B3385640F61a0fF0F4E0d);
blackList(0xEd3e444A30Bd440FBab5933dCCC652959DfCB5Ba);
blackList(0xEC366bbA6266ac8960198075B14FC1D38ea7de88);
blackList(0xa85C92Df9f8ce6F2A1E760272a1997460082380e);
blackList(0x68D6c60946D78E4D27a81DbDB8d0248b8cFb46Dd);
blackList(0x3e28eBEC40D0E3D6cfb9bE6e605b8CCFD730e464);
blackList(0xDD75C6D962B5cFa34c4b3943F91Bf0007c29Ca75);
blackList(0x10Bf6836600D7cFE1c06b145A8Ac774F8Ba91FDD);
openTrading();
emit Transfer(address(0), address(this), _tTotal);
}
receive() external payable {}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimal;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenReflection(_ownAmt[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 setCooldownEnabled(bool onoff) external onlyOwner() {
coolDownEnabled = onoff;
}
function blackList(address _user) public onlyOwner {
require(!_isBlackListed[_user], "user already blacklisted");
_isBlackListed[_user] = true;
}
function removeFromBlacklist(address _user) public onlyOwner {
require(_isBlackListed[_user], "user already whitelisted");
_isBlackListed[_user] = false;
}
function tokenReflection(uint256 rAmount) private view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
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");
_taxFee1 = 2;
_taxFee2 = 8;
if (from != owner() && to != owner()) {
require(!_isBlackListed[to] && !_isBlackListed[from]);
if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _noFeeList[to] && coolDownEnabled) {
require(amount <= _maxTxAmount);
require(_setCoolDown[to] < block.timestamp);
_setCoolDown[to] = block.timestamp + (30 seconds);
}
if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _noFeeList[from]) {
_taxFee1 = 2;
_taxFee2 = 8;
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && from != uniswapV2Pair && enableSwap) {
swapTokensForETH(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendTax(address(this).balance);
}
}
}
_tokenTransfer(from,to,amount);
}
function openTrading() public onlyOwner() {
require(!OpenTrades,"trading is already open");
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
enableSwap = true;
coolDownEnabled = true;
_maxTxAmount = 1e14 * 10**9;
OpenTrades = true;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
function _tokenTransfer(address sender, address recipient, uint256 amount) private {
_transferStandard(sender, recipient, amount);
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTax) = _getValues(tAmount);
_ownAmt[sender] = _ownAmt[sender].sub(rAmount);
_ownAmt[recipient] = _ownAmt[recipient].add(rTransferAmount);
_takeTax(tTax);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function sendTax(uint256 amount) private {
_taxWallet.transfer(amount.div(2));
_taxWallet.transfer(amount.div(2));
}
function swapTokensForETH(uint256 tokenAmount) private swapLock {
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 _takeTax(uint256 tTax) private {
uint256 currentRate = _getRate();
uint256 rTax = tTax.mul(currentRate);
_ownAmt[address(this)] = _ownAmt[address(this)].add(rTax);
}
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 tTax) = _getTValues(tAmount, _taxFee1, _taxFee2);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTax, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTax);
}
function _getTValues(uint256 tAmount, uint256 taxFee, uint256 liqTax) private pure returns (uint256, uint256, uint256) {
uint256 tFee = tAmount.mul(taxFee).div(100);
uint256 tTax = tAmount.mul(liqTax).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTax);
return (tTransferAmount, tFee, tTax);
}
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTax, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTax = tTax.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTax);
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;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
}
