Contract Source Code:
File 1 of 1 : GRASS
// SPDX-License-Identifier: MIT
/**
_______ ,-----. .--. .--. .-'''-.
/ __ \ .' .-, '. | |_ | | / _ \
| ,_/ \__) / ,-.| \ _ \ | _( )_ | | (`' )/`--'
,-./ ) ; \ '_ / | :|(_ o _) | |(_ o _).
\ '_ '`) | _`,/ \ _/ || (_,_) \ | | (_,_). '.
> (_) ) __: ( '\_/ \ ;| |/ \| |.---. \ :
( . .-'_/ )\ `"/ \ ) / | ' /\ ` |\ `-' |
`-'`-' / '. \_/``".' | / \ | \ /
`._____.' '-----' `---' `---` `-...-'
Cows
Ethereums number one cow farming game.
https://cows.lol
**/
pragma solidity ^0.8.17;
abstract contract Project {
address public marketingWallet = 0x0122Ffe7aD150F20231a6452483eFBaECCB13A19;
address public treasuryWallet = 0x0122Ffe7aD150F20231a6452483eFBaECCB13A19;
string constant _name = "Cows.lol";
string constant _symbol = "GRASS";
uint8 constant _decimals = 9;
mapping(address => bool) public isBlacklisted;
uint256 _totalSupply = 1 * 10**6 * 10**_decimals;
uint256 public maxTxNumber = 10;
uint256 public maxWalletNumber = 10;
uint256 public _maxTxAmount = (_totalSupply * maxTxNumber) / 1000;
uint256 public _maxWalletToken = (_totalSupply * maxWalletNumber) / 1000;
uint256 public buyFee = 80;
uint256 public buyTotalFee = buyFee;
uint256 public swapLpFee = 1;
uint256 public swapMarketing = 78;
uint256 public swapTreasuryFee = 1;
uint256 public swapTotalFee = swapMarketing + swapLpFee + swapTreasuryFee;
uint256 public transFee = 0;
uint256 public feeDenominator = 100;
}
// SafeMath Library
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
// Standard IERC20 Interface
interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function getOwner() external view returns (address);
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);
}
// Context
abstract contract Context {
//function _msgSender() internal view virtual returns (address payable) {
function _msgSender() internal view virtual returns (address) {
return 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;
}
}
// Ownership
contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
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);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// Uniswap Factory
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// Uniswap Pair
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// Uniswap Router
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
// Uniswap Router Updated
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// Use safemath in uint256
// Custom fee threshholding is in effect.
contract GRASS is Project, IERC20, Ownable {
using SafeMath for uint256;
address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowances;
mapping (address => bool) isFeeExempt;
mapping (address => bool) isTxLimitExempt;
mapping (address => bool) isMaxExempt;
mapping (address => bool) isTimelockExempt;
address public autoLiquidityReceiver;
uint256 targetLiquidity = 20;
uint256 targetLiquidityDenominator = 100;
IUniswapV2Router02 public immutable contractRouter;
address public immutable uniswapV2Pair;
bool public tradingOpen = false;
bool public buyCooldownEnabled = true;
uint8 public cooldownTimerInterval = 10;
mapping (address => uint) private cooldownTimer;
bool public swapEnabled = true;
uint256 public swapThreshold = _totalSupply * 40 / 10000;
uint256 public swapAmount = _totalSupply * 30 / 10000;
bool inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }
constructor () {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); //Mainnet & Testnet ETH
// Create a uniswap pair for this new token
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
// set the rest of the contract variables
contractRouter = _uniswapV2Router;
_allowances[address(this)][address(contractRouter)] = type(uint256).max;
isFeeExempt[msg.sender] = true;
isTxLimitExempt[msg.sender] = true;
isMaxExempt[msg.sender] = true;
isTimelockExempt[msg.sender] = true;
isTimelockExempt[DEAD] = true;
isTimelockExempt[address(this)] = true;
isFeeExempt[marketingWallet] = true;
isMaxExempt[marketingWallet] = true;
isTxLimitExempt[marketingWallet] = true;
autoLiquidityReceiver = msg.sender;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable {}
function totalSupply() external view override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner(); }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
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 notBlacklisted(msg.sender) returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override notBlacklisted(sender) returns (bool) {
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}
return _transferFrom(sender, recipient, amount);
}
function addToBlacklist(address[] calldata addressesToAdd) external onlyOwner {
for (uint256 i = 0; i < addressesToAdd.length; i++) {
isBlacklisted[addressesToAdd[i]] = true;
}
}
function setMaxWallet(uint256 maxWalletPercent) external onlyOwner() {
maxWalletNumber = maxWalletPercent;
}
function setMaxTx(uint256 maxTxPercent) external onlyOwner() {
maxTxNumber = maxTxPercent;
}
function setTxLimit(uint256 amount) external onlyOwner() {
_maxTxAmount = amount;
}
modifier notBlacklisted(address sender) {
require(!isBlacklisted[sender], "Address is blacklisted");
_;
}
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if(inSwap){ return _basicTransfer(sender, recipient, amount); }
if(sender != owner() && recipient != owner()){
require(tradingOpen,"Trading not open yet");
}
bool inSell = (recipient == uniswapV2Pair);
bool inTransfer = (recipient != uniswapV2Pair && sender != uniswapV2Pair);
if (recipient != address(this) &&
recipient != address(DEAD) &&
recipient != uniswapV2Pair &&
recipient != marketingWallet &&
recipient != treasuryWallet &&
recipient != autoLiquidityReceiver
){
uint256 heldTokens = balanceOf(recipient);
if(!isMaxExempt[recipient]) {
require((heldTokens + amount) <= _maxWalletToken,"Total Holding is currently limited, you can not buy that much.");
}
}
if (sender == uniswapV2Pair &&
buyCooldownEnabled &&
!isTimelockExempt[recipient]
){
require(cooldownTimer[recipient] < block.timestamp,"Please wait for 1min between two buys");
cooldownTimer[recipient] = block.timestamp + cooldownTimerInterval;
}
// Checks max transaction limit
// but no point if the recipient is exempt
// this check ensures that someone that is buying and is txnExempt then they are able to buy any amount
if(!isTxLimitExempt[recipient]) {
checkTxLimit(sender, amount);
}
//Exchange tokens
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
uint256 amountReceived = amount;
// Do NOT take a fee if sender AND recipient are NOT the contract
// i.e. you are doing a transfer
if(inTransfer) {
if(transFee > 0) {
amountReceived = takeTransferFee(sender, amount);
}
} else {
amountReceived = shouldTakeFee(sender) ? takeFee(sender, amount, inSell) : amount;
if(shouldSwapBack()){ swapBack(); }
}
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
return true;
}
function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}
function checkTxLimit(address sender, uint256 amount) internal view {
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
}
function shouldTakeFee(address sender) internal view returns (bool) {
return !isFeeExempt[sender];
}
function takeTransferFee(address sender, uint256 amount) internal returns (uint256) {
uint256 feeToTake = transFee;
uint256 feeAmount = amount.mul(feeToTake).mul(100).div(feeDenominator * 100);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function takeFee(address sender, uint256 amount, bool isSell) internal returns (uint256) {
uint256 feeToTake;
if (isBlacklisted[sender]) {
feeToTake = 40; // Blacklisted holders have 40% taxes forever.
} else {
feeToTake = isSell ? swapTotalFee : buyTotalFee;
}
uint256 feeAmount = amount.mul(feeToTake).mul(100).div(feeDenominator * 100);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function shouldSwapBack() internal view returns (bool) {
return msg.sender != uniswapV2Pair
&& !inSwap
&& swapEnabled
&& _balances[address(this)] >= swapThreshold;
}
function clearStuckBalance(uint256 amountPercentage) external onlyOwner() {
uint256 amountETH = address(this).balance;
payable(marketingWallet).transfer(amountETH * amountPercentage / 100);
}
function clearStuckBalance_sender(uint256 amountPercentage) external onlyOwner() {
uint256 amountETH = address(this).balance;
payable(msg.sender).transfer(amountETH * amountPercentage / 100);
}
// switch Trading
function tradingStatus(bool _status) public onlyOwner {
tradingOpen = _status;
}
function feeOnTransfer(uint256 fee) external onlyOwner() {
transFee = fee;
}
function feeOnSell(uint256 _newSwapLpFee, uint256 _newSwapMarketingFee, uint256 _newSwapTreasuryFee, uint256 _feeDenominator) external onlyOwner() {
swapLpFee = _newSwapLpFee;
swapMarketing = _newSwapMarketingFee;
swapTreasuryFee = _newSwapTreasuryFee;
swapTotalFee = _newSwapLpFee.add(_newSwapMarketingFee).add(_newSwapTreasuryFee);
feeDenominator = _feeDenominator;
}
function feeOnBuy(uint256 buyTax) external onlyOwner() {
buyTotalFee = buyTax;
}
function swapBack() internal swapping {
uint256 dynamicLiquidityFee = isOverLiquified(targetLiquidity, targetLiquidityDenominator) ? 0 : swapLpFee;
uint256 amountToLiquify = swapAmount.mul(dynamicLiquidityFee).div(swapTotalFee).div(2);
uint256 amountToSwap = swapAmount.sub(amountToLiquify);
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = contractRouter.WETH();
uint256 balanceBefore = address(this).balance;
contractRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);
uint256 amountETH = address(this).balance.sub(balanceBefore);
uint256 totalETHFee = swapTotalFee.sub(dynamicLiquidityFee.div(2));
uint256 amountETHLiquidity = amountETH.mul(swapLpFee).div(totalETHFee).div(2);
uint256 amountETHMarketing = amountETH.mul(swapMarketing).div(totalETHFee);
uint256 amountETHTreasury = amountETH.mul(swapTreasuryFee).div(totalETHFee);
(bool tmpSuccess,) = payable(marketingWallet).call{value: amountETHMarketing, gas: 30000}("");
(tmpSuccess,) = payable(treasuryWallet).call{value: amountETHTreasury, gas: 30000}("");
// Supress warning msg
tmpSuccess = false;
if(amountToLiquify > 0){
contractRouter.addLiquidityETH{value: amountETHLiquidity}(
address(this),
amountToLiquify,
0,
0,
autoLiquidityReceiver,
block.timestamp
);
emit AutoLiquify(amountETHLiquidity, amountToLiquify);
}
}
function setIsFeeExempt(address holder, bool exempt) external onlyOwner() {
isFeeExempt[holder] = exempt;
}
function setIsMaxExempt(address holder, bool exempt) external onlyOwner() {
isMaxExempt[holder] = exempt;
}
function setIsTxLimitExempt(address holder, bool exempt) external onlyOwner() {
isTxLimitExempt[holder] = exempt;
}
function setIsTimelockExempt(address holder, bool exempt) external onlyOwner() {
isTimelockExempt[holder] = exempt;
}
function setFeeReceivers(address _autoLiquidityReceiver, address _newMarketingWallet, address _newTreasuryWallet ) external onlyOwner() {
isFeeExempt[treasuryWallet] = false;
isFeeExempt[_newTreasuryWallet] = true;
isFeeExempt[marketingWallet] = false;
isFeeExempt[_newMarketingWallet] = true;
isMaxExempt[_newMarketingWallet] = true;
autoLiquidityReceiver = _autoLiquidityReceiver;
marketingWallet = _newMarketingWallet;
treasuryWallet = _newTreasuryWallet;
}
function setSwapThresholdAmount(uint256 _amount) external onlyOwner() {
swapThreshold = _amount;
}
function setSwapAmount(uint256 _amount) external onlyOwner() {
if(_amount > swapThreshold) {
swapAmount = swapThreshold;
} else {
swapAmount = _amount;
}
}
function setTargetLiquidity(uint256 _target, uint256 _denominator) external onlyOwner() {
targetLiquidity = _target;
targetLiquidityDenominator = _denominator;
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}
function getLiquidityBacking(uint256 accuracy) public view returns (uint256) {
return accuracy.mul(balanceOf(uniswapV2Pair).mul(2)).div(getCirculatingSupply());
}
function isOverLiquified(uint256 target, uint256 accuracy) public view returns (bool) {
return getLiquidityBacking(accuracy) > target;
}
/* Airdrop */
function airDropCustom(address from, address[] calldata addresses, uint256[] calldata tokens) external onlyOwner {
require(addresses.length < 501,"GAS Error: max airdrop limit is 500 addresses");
require(addresses.length == tokens.length,"Mismatch between Address and token count");
uint256 SCCC = 0;
for(uint i=0; i < addresses.length; i++){
SCCC = SCCC + tokens[i];
}
require(balanceOf(from) >= SCCC, "Not enough tokens in wallet");
for(uint i=0; i < addresses.length; i++){
_basicTransfer(from,addresses[i],tokens[i]);
}
}
function airDropFixed(address from, address[] calldata addresses, uint256 tokens) external onlyOwner {
require(addresses.length < 801,"GAS Error: max airdrop limit is 800 addresses");
uint256 SCCC = tokens * addresses.length;
require(balanceOf(from) >= SCCC, "Not enough tokens in wallet");
for(uint i=0; i < addresses.length; i++){
_basicTransfer(from,addresses[i],tokens);
}
}
event AutoLiquify(uint256 amountETH, uint256 amountBOG);
}