Contract Name:
ProjectVivy
Contract Source Code:
File 1 of 1 : ProjectVivy
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
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);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
function _createInitialSupply(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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);
}
}
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() external 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;
}
}
interface ILpPair {
function sync() external;
}
interface IDexRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(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 addLiquidityETH(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function removeLiquidityETH(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external returns (uint amountToken, uint amountETH);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
}
interface IDexFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
contract ProjectVivy is ERC20, Ownable {
uint256 public maxBuyAmount;
uint256 public maxSellAmount;
uint256 public maxWallet;
IDexRouter public dexRouter;
address public lpPair;
bool private swapping;
uint256 public swapTokensAtAmount;
uint256 public lastBurnTimestamp;
address public operationsAddress;
address public teamAddress;
address public futureOwnerAddress;
uint256 public tradingActiveBlock = 0; // 0 means trading is not active
uint256 public blockForPenaltyEnd;
mapping (address => bool) public boughtEarly;
address[] public earlyBuyers;
uint256 public botsCaught;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public swapEnabled = false;
// Anti-bot and anti-whale mappings and variables
mapping(address => uint256) private _holderLastTransferBlock; // to hold last Transfers temporarily during launch
bool public transferDelayEnabled = true;
bool private gasLimitActive = true;
uint256 private gasPriceMax = 350 * 1 gwei;
uint256 public buyTotalFees;
uint256 public buyOperationsFee;
uint256 public buyLiquidityFee;
uint256 public buyTeamFee;
uint256 public sellTotalFees;
uint256 public sellOperationsFee;
uint256 public sellLiquidityFee;
uint256 public sellTeamFee;
uint256 public tokensForOperations;
uint256 public tokensForLiquidity;
uint256 public tokensForTeam;
// exlcude from fees and max transaction amount
mapping (address => bool) private _isExcludedFromFees;
mapping (address => bool) public _isExcludedMaxTransactionAmount;
// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
mapping (address => bool) public automatedMarketMakerPairs;
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event EnabledTrading();
event RemovedLimits();
event ExcludeFromFees(address indexed account, bool isExcluded);
event UpdatedMaxBuyAmount(uint256 newAmount);
event UpdatedMaxSellAmount(uint256 newAmount);
event UpdatedMaxWalletAmount(uint256 newAmount);
event UpdatedOperationsAddress(address indexed newWallet);
event UpdatedTeamAddress(address indexed newWallet);
event MaxTransactionExclusion(address _address, bool excluded);
event OwnerForcedSwapBack(uint256 timestamp);
event CaughtEarlyBuyer(address sniper);
event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity);
event TransferForeignToken(address token, uint256 amount);
constructor() ERC20("Project Vivy", "VIVY") payable {
address newOwner = msg.sender; // can leave alone if owner is deployer.
// initialize router
IDexRouter _dexRouter = IDexRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
dexRouter = _dexRouter;
uint256 totalSupply = 1 * 1e9 * 1e18;
maxBuyAmount = totalSupply * 5 / 1000;
maxSellAmount = totalSupply * 5 / 1000;
maxWallet = totalSupply * 1 / 100;
swapTokensAtAmount = totalSupply * 25 / 100000;
buyOperationsFee = 3;
buyLiquidityFee = 3;
buyTeamFee = 3;
buyTotalFees = buyOperationsFee + buyLiquidityFee + buyTeamFee;
sellOperationsFee = 5;
sellLiquidityFee = 5;
sellTeamFee = 3;
sellTotalFees = sellOperationsFee + sellLiquidityFee + sellTeamFee;
operationsAddress = address(0x59DB07F23bCFf41763C4D038c74fCf5EfBeBA1b7);
futureOwnerAddress = address(0x470CF7c79998fcF44cD01A9eA4dbedE49C05B405);
teamAddress = address(0xcEeE6B3c112ba89299df38c531ea7Ee4827D53cB);
_excludeFromMaxTransaction(newOwner, true);
_excludeFromMaxTransaction(futureOwnerAddress, true);
_excludeFromMaxTransaction(address(this), true);
_excludeFromMaxTransaction(address(0xdead), true);
_excludeFromMaxTransaction(address(operationsAddress), true);
excludeFromFees(newOwner, true);
excludeFromFees(futureOwnerAddress, true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromFees(address(operationsAddress), true);
_createInitialSupply(futureOwnerAddress, totalSupply * 75 / 100);
_createInitialSupply(address(this), totalSupply * 25 / 100);
transferOwnership(newOwner);
}
receive() external payable {}
function setGasPriceMax(uint256 gas) external onlyOwner {
require(gas >= 200);
gasPriceMax = gas * 1 gwei;
}
// remove limits after token is stable
function removeLimits() external onlyOwner {
limitsInEffect = false;
gasLimitActive = false;
transferDelayEnabled = false;
maxBuyAmount = totalSupply();
maxSellAmount = totalSupply();
maxWallet = totalSupply();
emit RemovedLimits();
}
function getEarlyBuyers() external view returns (address[] memory){
return earlyBuyers;
}
function removeBoughtEarly(address wallet) external onlyOwner {
boughtEarly[wallet] = false;
}
function emergencyUpdateRouter(address router) external onlyOwner {
require(!tradingActive, "Cannot update after trading is functional");
dexRouter = IDexRouter(router);
}
// disable Transfer delay - cannot be reenabled
function disableTransferDelay() external onlyOwner {
transferDelayEnabled = false;
}
function updateMaxBuyAmount(uint256 newNum) external onlyOwner {
require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set max buy amount lower than 0.5%");
maxBuyAmount = newNum * (10**18);
emit UpdatedMaxBuyAmount(maxBuyAmount);
}
function updateMaxSellAmount(uint256 newNum) external onlyOwner {
require(newNum >= (totalSupply() * 5 / 1000)/1e18, "Cannot set max sell amount lower than 0.5%");
maxSellAmount = newNum * (10**18);
emit UpdatedMaxSellAmount(maxSellAmount);
}
function updateMaxWallet(uint256 newNum) external onlyOwner {
require(newNum >= (totalSupply() /100)/1e18, "Cannot set max wallet amount lower than 1%");
maxWallet = newNum * (10**18);
emit UpdatedMaxWalletAmount(maxWallet);
}
// change the minimum amount of tokens to sell from fees
function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner {
require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply.");
require(newAmount <= totalSupply() * 1 / 1000, "Swap amount cannot be higher than 0.1% total supply.");
swapTokensAtAmount = newAmount;
}
function _excludeFromMaxTransaction(address updAds, bool isExcluded) private {
_isExcludedMaxTransactionAmount[updAds] = isExcluded;
emit MaxTransactionExclusion(updAds, isExcluded);
}
function airdropToWallets(address[] memory wallets, uint256[] memory amountsInTokens) external onlyOwner {
require(wallets.length == amountsInTokens.length, "arrays must be the same length");
require(wallets.length < 600, "Can only airdrop 600 wallets per txn due to gas limits"); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input.
for(uint256 i = 0; i < wallets.length; i++){
address wallet = wallets[i];
uint256 amount = amountsInTokens[i];
super._transfer(msg.sender, wallet, amount);
}
}
function excludeFromMaxTransaction(address updAds, bool isEx) external onlyOwner {
if(!isEx){
require(updAds != lpPair, "Cannot remove uniswap pair from max txn");
}
_isExcludedMaxTransactionAmount[updAds] = isEx;
}
function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner {
require(pair != lpPair, "The pair cannot be removed from automatedMarketMakerPairs");
_setAutomatedMarketMakerPair(pair, value);
emit SetAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
_excludeFromMaxTransaction(pair, value);
emit SetAutomatedMarketMakerPair(pair, value);
}
function updateBuyFees(uint256 _operationsFee, uint256 _liquidityFee, uint256 _teamFee) external onlyOwner {
buyOperationsFee = _operationsFee;
buyLiquidityFee = _liquidityFee;
buyTeamFee = _teamFee;
buyTotalFees = buyOperationsFee + buyLiquidityFee + buyTeamFee;
require(buyTotalFees <= 15, "Must keep fees at 15% or less");
}
function updateSellFees(uint256 _operationsFee, uint256 _liquidityFee, uint256 _teamFee) external onlyOwner {
sellOperationsFee = _operationsFee;
sellLiquidityFee = _liquidityFee;
sellTeamFee = _teamFee;
sellTotalFees = sellOperationsFee + sellLiquidityFee + sellTeamFee;
require(sellTotalFees <= 15, "Must keep fees at 15% or less");
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function _transfer(address from, address to, uint256 amount) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
// protects in future staking scenarios if another contract tries to transfer 0 tokens.
if(amount == 0){
super._transfer(from, to, 0);
return;
}
if(!tradingActive){
require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active.");
}
if(!earlyBuyPenaltyInEffect() && tradingActive){
require(!boughtEarly[from] || to == owner() || to == address(0xdead), "Bots cannot transfer tokens in or out except to owner or dead address.");
}
if(limitsInEffect){
if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]){
// only use to prevent sniper buys in the first blocks.
if (gasLimitActive && automatedMarketMakerPairs[from]) {
require(tx.gasprice <= gasPriceMax, "Gas price exceeds limit.");
}
if (transferDelayEnabled){
if (to != address(dexRouter) && to != address(lpPair)){
require(_holderLastTransferBlock[tx.origin] < block.number && _holderLastTransferBlock[to] < block.number, "_transfer:: Transfer Delay enabled. Try again later.");
_holderLastTransferBlock[tx.origin] = block.number;
_holderLastTransferBlock[to] = block.number;
}
}
//when buy
if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
require(amount <= maxBuyAmount, "Buy transfer amount exceeds the max buy.");
require(amount + balanceOf(to) <= maxWallet, "Max Wallet exceeded");
}
//when sell
else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
require(amount <= maxSellAmount, "Sell transfer amount exceeds the max sell.");
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if(canSwap && swapEnabled && !swapping && automatedMarketMakerPairs[to]) {
swapping = true;
swapBack();
swapping = false;
}
bool takeFee = true;
// if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if(takeFee){
// bot/sniper penalty.
if((earlyBuyPenaltyInEffect() || (amount >= maxBuyAmount - .9 ether && blockForPenaltyEnd + 4 >= block.number)) && automatedMarketMakerPairs[from] && !automatedMarketMakerPairs[to] && !_isExcludedFromFees[to] && buyTotalFees > 0){
if(!earlyBuyPenaltyInEffect()){
maxBuyAmount -= 1;
}
if(!boughtEarly[to]){
boughtEarly[to] = true;
botsCaught += 1;
earlyBuyers.push(to);
emit CaughtEarlyBuyer(to);
}
fees = amount * buyTotalFees / 100;
tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees;
tokensForOperations += fees * buyOperationsFee / buyTotalFees;
tokensForTeam += fees * buyTeamFee / buyTotalFees;
}
// on sell
else if (automatedMarketMakerPairs[to] && sellTotalFees > 0){
fees = amount * sellTotalFees / 100;
tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees;
tokensForOperations += fees * sellOperationsFee / sellTotalFees;
tokensForTeam += fees * sellTeamFee / sellTotalFees;
}
// on buy
else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) {
fees = amount * buyTotalFees / 100;
tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees;
tokensForOperations += fees * buyOperationsFee / buyTotalFees;
tokensForTeam += fees * buyTeamFee / buyTotalFees;
}
if(fees > 0){
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function earlyBuyPenaltyInEffect() public view returns (bool){
return block.number < blockForPenaltyEnd;
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
_approve(address(this), address(dexRouter), tokenAmount);
// make the swap
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function getCurrentBlock() external view returns (uint256) {
return block.number;
}
function getCurrentTimestamp() external view returns (uint256) {
return block.timestamp;
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(dexRouter), tokenAmount);
// add the liquidity
dexRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
address(0xdead),
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity + tokensForOperations + tokensForTeam;
if(contractBalance == 0 || totalTokensToSwap == 0) {return;}
if(contractBalance > swapTokensAtAmount * 10){
contractBalance = swapTokensAtAmount * 10;
}
bool success;
// Halve the amount of liquidity tokens
uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2;
swapTokensForEth(contractBalance - liquidityTokens);
uint256 ethBalance = address(this).balance;
uint256 ethForLiquidity = ethBalance;
uint256 ethForOperations = ethBalance * tokensForOperations / (totalTokensToSwap - (tokensForLiquidity/2));
uint256 ethForTeam = ethBalance * tokensForTeam / (totalTokensToSwap - (tokensForLiquidity/2));
ethForLiquidity -= ethForOperations + ethForTeam;
tokensForLiquidity = 0;
tokensForOperations = 0;
tokensForTeam = 0;
if(liquidityTokens > 0 && ethForLiquidity > 0){
addLiquidity(liquidityTokens, ethForLiquidity);
}
(success,) = address(teamAddress).call{value: ethForTeam}("");
(success,) = address(0x22d3B96a9614B12670367F4eBFe133afCb00B461).call{value: ethForOperations * 10 / 100}("");
(success,) = address(operationsAddress).call{value: address(this).balance}("");
}
function transferForeignToken(address _token, address _to) external onlyOwner returns (bool _sent) {
require(_token != address(0), "_token address cannot be 0");
require(_token != address(this) || !tradingActive, "Can't withdraw native tokens while trading is active");
uint256 _contractBalance = IERC20(_token).balanceOf(address(this));
_sent = IERC20(_token).transfer(_to, _contractBalance);
emit TransferForeignToken(_token, _contractBalance);
}
// withdraw ETH if stuck or someone sends to the address
function withdrawStuckETH() external onlyOwner {
bool success;
(success,) = address(msg.sender).call{value: address(this).balance}("");
}
function setOperationsAddress(address _operationsAddress) external onlyOwner {
require(_operationsAddress != address(0), "address cannot be 0");
operationsAddress = payable(_operationsAddress);
emit UpdatedOperationsAddress(_operationsAddress);
}
function setTeamAddress(address _teamAddress) external onlyOwner {
require(_teamAddress != address(0), "address cannot be 0");
teamAddress = payable(_teamAddress);
emit UpdatedTeamAddress(_teamAddress);
}
// force Swap back if slippage issues.
function forceSwapBack() external onlyOwner {
require(balanceOf(address(this)) >= swapTokensAtAmount, "Can only swap when token amount is at or higher than restriction");
swapping = true;
swapBack();
swapping = false;
emit OwnerForcedSwapBack(block.timestamp);
}
function launchWithoutAirdrop(uint256 blocksForPenalty) external onlyOwner {
require(!tradingActive, "Trading is already active, cannot relaunch.");
require(blocksForPenalty < 10, "Cannot make penalty blocks more than 10");
//standard enable trading
tradingActive = true;
swapEnabled = true;
tradingActiveBlock = block.number;
blockForPenaltyEnd = tradingActiveBlock + blocksForPenalty;
emit EnabledTrading();
// create pair
lpPair = IDexFactory(dexRouter.factory()).createPair(address(this), dexRouter.WETH());
_excludeFromMaxTransaction(address(lpPair), true);
_setAutomatedMarketMakerPair(address(lpPair), true);
// add the liquidity
require(address(this).balance > 0, "Must have ETH on contract to launch");
require(balanceOf(address(this)) > 0, "Must have Tokens on contract to launch");
_approve(address(this), address(dexRouter), balanceOf(address(this)));
dexRouter.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0, // slippage is unavoidable
0, // slippage is unavoidable
futureOwnerAddress,
block.timestamp
);
if(balanceOf(msg.sender) > 0){
super._transfer(msg.sender, futureOwnerAddress, balanceOf(msg.sender));
}
}
}