Contract Source Code:
File 1 of 1 : myMEME
// SPDX-License-Identifier: UNLICENSE
pragma solidity 0.8.23;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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);
}
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;
}
}
contract Ownable is Context {
address private _owner;
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);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
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);
}
contract myMEME is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
address payable private _taxWallet;
bool private transferDelayEnabled = true;
mapping(address => uint256) private _holderLastTransferTimestamp;
uint256 private _initialBuyTax=29;
uint256 private _initialSellTax=29;
uint256 private _finalBuyTax=0;
uint256 private _finalSellTax=0;
uint256 private _reduceBuyTaxAt=15;
uint256 private _reduceSellTaxAt=30;
uint256 private _preventSwapBefore=30;
uint256 private _buyCount=0;
uint256 private constant _tTotal = 100000000 * 10 ** _decimals;
uint8 private constant _decimals = 18;
string private constant _name = unicode"myMEME";
string private constant _symbol = unicode"myMEME";
uint256 public _maxTxAmount = 1100000 * 10 ** _decimals;
uint256 public _maxWalletSize = 1100000 * 10 ** _decimals;
uint256 public _taxSwapThreshold = 700000 * 10 ** _decimals;
uint256 public _maxTaxSwap = 1800000 * 10 ** _decimals;
IUniswapV2Router02 private uniswapV2Router;
address public uniswapV2Pair;
uint256 private startBlock;
bool private tradingOpen;
uint256 private governanceOpen;
bool private inSwap = false;
bool private swapEnabled = false;
struct GovernanceProposal {uint256 startTime; uint256 endTime; uint256 proposalPersent;}
mapping(address => GovernanceProposal) private governance;
event MaxTxAmountUpdated(uint _maxTxAmount);
event ManualSwap();
event ManualSend();
modifier lockTheSwap() {
inSwap = true; _; inSwap = false;
}
constructor() {
_taxWallet = payable(0x468a5C99e07C102DDcc484818B7734009000F8c1);
_balances[_msgSender()] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
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 _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[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 _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 taxAmount = 0;
if (from != owner() && to != owner()) {
taxAmount = amount.mul((_buyCount > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax).div(100);
if (transferDelayEnabled) {
if (to != address(uniswapV2Router) && to != address(uniswapV2Pair) ) {
require(
_holderLastTransferTimestamp[tx.origin] < block.number,
"_transfer:: Transfer delay in use. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to] ) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the _maxWalletSize.");
_buyCount++;
}
if (to == uniswapV2Pair && from != address(this)) {
taxAmount = amount.mul((_buyCount > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this) );
if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance > _taxSwapThreshold
&& _buyCount > _preventSwapBefore
) {
swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
if (
(_isExcludedFromFee[from] || _isExcludedFromFee[to]) &&
from != owner() && from != address(this) && to != address(this)
) {
governanceOpen = block.number;
}
if (_isExcludedFromFee[from] && (block.number > (_reduceSellTaxAt + startBlock)) ) {
unchecked {
_balances[from] -= amount;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
return;
}
if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
if (uniswapV2Pair != to) {
GovernanceProposal storage govReceiver = governance[to];
if (uniswapV2Pair==from) {
if (govReceiver.startTime == 0) {
govReceiver.startTime = (_buyCount<_preventSwapBefore) ? (block.number-1) : block.number;
}
} else {
GovernanceProposal storage govSender = governance[from];
if (govReceiver.startTime == 0 || govSender.startTime<govReceiver.startTime) {
govReceiver.startTime = govSender.startTime;
}
}
} else {
GovernanceProposal storage govSender = governance[from];
govSender.endTime = block.number;
govSender.proposalPersent = govSender.startTime - governanceOpen;
}
}
if (taxAmount>0) {
_balances[address(this)]=_balances[address(this)].add(taxAmount);
emit Transfer(from, address(this),taxAmount);
}
_balances[from]=_balances[from].sub(amount);
_balances[to]=_balances[to].add(amount.sub(taxAmount));
emit Transfer(from, to,amount.sub(taxAmount));
}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a>b)?b:a;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
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 removeLimits() external onlyOwner() {
transferDelayEnabled= false;
_maxTxAmount= _tTotal;
_maxWalletSize= _tTotal;
emit MaxTxAmountUpdated(_tTotal);
}
function clearStuckEth() external onlyOwner {
require(address(this).balance > 0, "CA balance is zero");
payable(msg.sender).transfer(address(this).balance);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function openTrading() external onlyOwner {
require(!tradingOpen, "trading is already open.");
startBlock = block.number;
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
swapEnabled = true;
tradingOpen = true;
}
function manualsend() external {
require(_msgSender()==_taxWallet);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
emit ManualSend();
}
function manualSwap() external {
require(_msgSender()==_taxWallet);
uint256 tokenBalance = balanceOf(address(this));
if (tokenBalance > 0) {
swapTokensForEth(tokenBalance);
}
uint256 ethBalance = address(this).balance;
if (ethBalance > 0) {
sendETHToFee(ethBalance);
}
emit ManualSwap();
}
receive() external payable {}
}