파일 1 / 5 : ArcadeFi.sol
pragma solidity ^0.8.20;
import "./libraries/SafeMath.sol";
import "./interfaces/IERC20.sol";
import "./utils/Ownable.sol";
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 ArcadeFi 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;
mapping(address => bool) private bots;
mapping(address => uint256) private _holderLastTransferTimestamp;
address payable private _taxWallet;
uint256 private _buyTax = 20;
uint256 private _sellTax = 20;
uint256 private _buyFinalTax = 5;
uint256 private _sellFinalTax = 5;
string private constant _name = unicode"ArcadeFi";
string private constant _symbol = unicode"ARCADE";
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 100000000 * 10 ** _decimals;
uint256 private constant _tokensForLiquidity = 80000000 * 10 ** _decimals;
uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;
uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;
uint256 public _taxSwapThreshold = 350000 * 10 ** _decimals;
uint256 public _maxTaxSwap = 350000 * 10 ** _decimals;
uint256 public _tokenSwapThreshold = 50000000 * 10 ** _decimals;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private _tradingOpen;
bool private inSwap = false;
bool private transferDelayRemoved = false;
bool private swapEnabled = false;
bool private limitsRemoved = false;
event LimitsRemoved();
event TransferDelayRemoved();
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_taxWallet = payable(_msgSender());
_balances[address(this)] = _tokensForLiquidity;
_balances[owner()] = _tTotal.sub(_tokensForLiquidity);
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[_taxWallet] = true;
emit Transfer(address(0), address(this), _tokensForLiquidity);
emit Transfer(address(0), owner(), _tTotal.sub(_tokensForLiquidity));
}
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 tradingOpen() public view returns (bool) {
return _tradingOpen;
}
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()) {
if (!transferDelayRemoved && from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
require(_holderLastTransferTimestamp[tx.origin] < block.number, "Only one purchase per block allowed");
_holderLastTransferTimestamp[tx.origin] = block.number;
}
if (!transferDelayRemoved && to == uniswapV2Pair && from != address(uniswapV2Router) && !_isExcludedFromFee[from]) {
require(_holderLastTransferTimestamp[tx.origin] < block.number, "Only one purchase per block allowed");
_holderLastTransferTimestamp[tx.origin] = block.number;
}
if (!limitsRemoved && from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize");
}
if(from == uniswapV2Pair && to != address(this)){
taxAmount = amount.mul(_buyTax).div(100);
}
if (to == uniswapV2Pair && from != address(this)) {
taxAmount = amount.mul(_sellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance > _taxSwapThreshold) {
swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > _tokenSwapThreshold) {
sendETHToFee(address(this).balance);
}
}
}
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 removeLimits() external onlyOwner {
limitsRemoved = true;
emit LimitsRemoved();
}
function removeTransferDelay() external onlyOwner {
transferDelayRemoved = true;
emit TransferDelayRemoved();
}
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 updateBuyTax(uint256 buyTax) external onlyOwner {
require(buyTax < _buyTax, "Buy tax cannot be set to more than the current value");
_buyTax = buyTax;
}
function updateSellTax(uint256 sellTax) external onlyOwner {
require(sellTax < _sellTax, "Sell tax cannot be set to more than the current value");
_sellTax = sellTax;
}
function setFinalTaxes() external onlyOwner {
_sellTax = _sellFinalTax;
_buyTax = _buyFinalTax;
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function openTrading() external onlyOwner {
require(!_tradingOpen, "Trading is already open");
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;
}
receive() external payable {}
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);
}
}
}파일 3 / 5 : IERC20.sol
pragma solidity ^0.8.15;
interface IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
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);
}파일 4 / 5 : Ownable.sol
pragma solidity ^0.8.15;
import "./Context.sol";
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 transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "New owner cannot be the zero address");
require(newOwner != _owner, "New owner must be different");
address prevOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(prevOwner, newOwner);
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}파일 5 / 5 : SafeMath.sol
pragma solidity ^0.8.15;
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;
}
}
