文件 1 的 1:SnakeEyes.sol
pragma solidity 0.8.7;
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 ERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function getOwner() external view returns (address);
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 Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(address(msg.sender));
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
contract Ownable is Context {
address private _owner;
address private _previousOwner;
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);
}
}
interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IDEXRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
interface InterfaceLP {
function sync() external;
}
interface IRewards {
function deposit() external payable;
function setShare(address shareholder, uint256 amount) external;
}
contract SnakeEyes is ERC20, Ownable {
using SafeMath for uint256;
uint256 private protection = 2;
uint256 public launchBlock;
uint256 private protectionBlock;
address private WETH;
address private DEAD = 0x000000000000000000000000000000000000dEaD;
address private ZERO = 0x0000000000000000000000000000000000000000;
string constant private _name = "SnakeEyes";
string constant private _symbol = "SnakeEyes";
uint8 constant private _decimals = 18;
uint256 private _totalSupply = 100000000* 10**_decimals;
uint256 public _maxTxAmount = _totalSupply / 100;
uint256 public _maxWalletAmount = _totalSupply / 100;
uint256 public _maxFee = 6;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
address[] public _markerPairs;
mapping (address => bool) public automatedMarketMakerPairs;
mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isTxLimitExempt;
mapping (address => bool) public isMaxWalletExempt;
uint256 private totalBuyFee = 6;
uint256 private liquidityFee = 30;
uint256 private marketingFee = 30;
uint256 private btcRewardsFee = 40;
uint256 private totalSellFee = 5;
uint256 private transferFee = 4;
uint256 private constant feeDenominator = 100;
address private marketingFeeReceiver = 0x75aEB75457144357C38aA6c750cbC6500Ca0BFa5;
address private btcRewardsCA = 0xbBA44684508D01989f27b8b4240DF6F91cA8B9D6;
IDEXRouter public router;
address public pair;
bool public tradingEnabled = false;
bool public swapEnabled = true;
uint256 public swapThreshold = _totalSupply * 1 / 5000;
bool private inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }
constructor () {
router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
WETH = router.WETH();
pair = IDEXFactory(router.factory()).createPair(WETH, address(this));
setAutomatedMarketMakerPair(pair, true);
_allowances[address(this)][address(router)] = type(uint256).max;
isFeeExempt[msg.sender] = true;
isTxLimitExempt[msg.sender] = true;
isMaxWalletExempt[msg.sender] = true;
isFeeExempt[address(this)] = true;
isTxLimitExempt[address(this)] = true;
isMaxWalletExempt[address(this)] = true;
isMaxWalletExempt[pair] = true;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
receive() external payable { }
function totalSupply() external view override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner(); }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}
function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function approveMax(address spender) external returns (bool) {
return approve(spender, type(uint256).max);
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}
return _transferFrom(sender, recipient, amount);
}
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if(inSwap){ return _basicTransfer(sender, recipient, amount); }
if(!isFeeExempt[sender] && !isFeeExempt[recipient]){
require(tradingEnabled,"Trading not open yet");
}
if(shouldSwapBack()){ swapBack(); }
uint256 amountReceived = amount;
if(automatedMarketMakerPairs[sender]) {
if(!isFeeExempt[recipient]) {
require(_balances[recipient].add(amount) <= _maxWalletAmount || isMaxWalletExempt[recipient], "Max Wallet Limit Limit Exceeded");
require(amount <= _maxTxAmount || isTxLimitExempt[recipient], "TX Limit Exceeded");
amountReceived = takeBuyFee(sender, amount);
}
} else if(automatedMarketMakerPairs[recipient]) {
if(!isFeeExempt[sender]) {
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
amountReceived = takeSellFee(sender, amount);
}
} else {
if (!isFeeExempt[sender]) {
require(_balances[recipient].add(amount) <= _maxWalletAmount || isMaxWalletExempt[recipient], "Max Wallet Limit Limit Exceeded");
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
amountReceived = takeTransferFee(sender, amount);
}
}
_balances[sender] = _balances[sender].sub(amount);
_balances[recipient] = _balances[recipient].add(amountReceived);
try IRewards(btcRewardsCA).setShare(sender, _balances[sender]) {} catch {}
try IRewards(btcRewardsCA).setShare(recipient, _balances[recipient]) {} catch {}
emit Transfer(sender, recipient, amountReceived);
return true;
}
function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}
function takeBuyFee(address sender, uint256 amount) internal returns (uint256){
uint256 _realFee = totalBuyFee;
if (block.number < protectionBlock) {
_realFee = 20;
}
uint256 feeAmount = amount.mul(_realFee).div(feeDenominator);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function takeSellFee(address sender, uint256 amount) internal returns (uint256){
uint256 _realFee = totalSellFee;
if (block.number < protectionBlock) {
_realFee = 40;
}
uint256 feeAmount = amount.mul(_realFee).div(feeDenominator);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function takeTransferFee(address sender, uint256 amount) internal returns (uint256){
uint256 feeAmount = amount.mul(transferFee).div(feeDenominator);
if (feeAmount > 0) {
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
}
return amount.sub(feeAmount);
}
function shouldSwapBack() internal view returns (bool) {
return
!automatedMarketMakerPairs[msg.sender]
&& !inSwap
&& swapEnabled
&& _balances[address(this)] >= swapThreshold;
}
function enableTrading() external onlyOwner {
tradingEnabled = true;
launchBlock = block.number;
protectionBlock = block.number.add(protection);
}
function swapBack() internal swapping {
uint256 swapLiquidityFee = liquidityFee;
uint256 realTotalFee =liquidityFee.add(marketingFee).add(btcRewardsFee);
uint256 contractTokenBalance = _balances[address(this)];
uint256 amountToLiquify = contractTokenBalance.mul(swapLiquidityFee).div(realTotalFee).div(2);
uint256 amountToSwap = contractTokenBalance.sub(amountToLiquify);
uint256 balanceBefore = address(this).balance;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WETH;
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);
uint256 amountETH = address(this).balance.sub(balanceBefore);
uint256 totalETHFee = realTotalFee.sub(swapLiquidityFee.div(2));
uint256 amountETHLiquidity = amountETH.mul(liquidityFee).div(totalETHFee).div(2);
uint256 amountETHMarketing = amountETH.mul(marketingFee).div(totalETHFee);
uint256 amountETHRewards = amountETH.sub(amountETHLiquidity).sub(amountETHMarketing);
(bool tmpSuccess,) = payable(marketingFeeReceiver).call{value: amountETHMarketing}("");
try IRewards(btcRewardsCA).deposit{value: amountETHRewards}() {} catch {}
tmpSuccess = false;
if(amountToLiquify > 0){
router.addLiquidityETH{value: amountETHLiquidity}(
address(this),
amountToLiquify,
0,
0,
DEAD,
block.timestamp
);
}
}
function setAutomatedMarketMakerPair(address _pair, bool _value) internal {
require(automatedMarketMakerPairs[_pair] != _value, "Value already set");
automatedMarketMakerPairs[_pair] = _value;
if(_value){
_markerPairs.push(_pair);
}else{
require(_markerPairs.length > 1, "Required 1 pair");
for (uint256 i = 0; i < _markerPairs.length; i++) {
if (_markerPairs[i] == _pair) {
_markerPairs[i] = _markerPairs[_markerPairs.length - 1];
_markerPairs.pop();
break;
}
}
}
}
function updateRouter(address _address) external onlyOwner{
router = IDEXRouter(_address);
}
function setMaxWallet(uint256 _newMaxWallet) external onlyOwner {
require(_newMaxWallet > _totalSupply.div(1000), "Can't limit trading");
_maxWalletAmount = _newMaxWallet;
}
function setMaxTX(uint256 _newMaxTX) external onlyOwner {
require(_newMaxTX > _totalSupply.div(1000), "Can't limit trading");
_maxTxAmount = _newMaxTX;
}
function setBuyTaxes(uint256 _buyTax, uint256 _liquidityPercentage, uint256 _marketingPercentage, uint256 _btcRewardsPercentage) external onlyOwner {
require(_buyTax <= _maxFee, "Fee can't be higher than 6%");
totalBuyFee = _buyTax;
liquidityFee = _liquidityPercentage;
marketingFee = _marketingPercentage;
btcRewardsFee = _btcRewardsPercentage;
}
function setSellTaxes(uint256 _sellTax) external onlyOwner {
require(_sellTax <= _maxFee, "Fee can't be higher than 6%");
totalSellFee = _sellTax;
}
function setTransferTax(uint256 _transferTax) external onlyOwner {
require(_transferTax <= _maxFee, "Fee can't be higher than 6%");
transferFee = _transferTax;
}
function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
isFeeExempt[holder] = exempt;
}
function setIsTxLimitExempt(address holder, bool exempt) external onlyOwner {
isTxLimitExempt[holder] = exempt;
}
function setIsMaxWalletExempt(address holder, bool exempt) external onlyOwner {
isMaxWalletExempt[holder] = exempt;
}
function setAddresses(address _marketingWallet, address _rewardsCA) external onlyOwner {
require(_marketingWallet != address(0) && _rewardsCA != address(0) , "Zero Address validation" );
marketingFeeReceiver = _marketingWallet;
btcRewardsCA = _rewardsCA;
}
function clearStuckBalance() external onlyOwner {
payable(msg.sender).transfer(address(this).balance);
}
function rescueERC20(address tokenAddress, uint256 amount) external onlyOwner returns (bool) {
return ERC20(tokenAddress).transfer(msg.sender, amount);
}
}