Contract Source Code:

// SPDX-License-Identifier: Unlicensed
/**
telegram: t.me/dicewarportal
*/
pragma solidity ^0.8.13;

/**
 * Standard SafeMath, stripped down to just add/sub/mul/div
 */
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) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }
}

/**
 * ERC20 standard interface.
 */
interface IERC20 {
    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
    );
}

/**
 * Allows for contract ownership along with multi-address authorization
 */
abstract contract Auth {
    address internal owner;

    constructor(address _owner) {
        owner = _owner;
    }

    /**
     * Function modifier to require caller to be contract deployer
     */
    modifier onlyOwner() {
        require(isOwner(msg.sender), "!Owner");
        _;
    }

    /**
     * Check if address is owner
     */
    function isOwner(address account) public view returns (bool) {
        return account == owner;
    }

    /**
     * Transfer ownership to new address. Caller must be deployer. Leaves old deployer authorized
     */
    function transferOwnership(address payable adr) public onlyOwner {
        owner = adr;
        emit OwnershipTransferred(adr);
    }

    event OwnershipTransferred(address owner);
}

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,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

contract DiceWarBot is IERC20, Auth {
    using SafeMath for uint256;

    address private WETH;
    address private DEAD = 0x000000000000000000000000000000000000dEaD;
    address private ZERO = 0x0000000000000000000000000000000000000000;
    address public gameContractAddress;

    string private constant _name = "Dice War Bot";
    string private constant _symbol = "DWB";
    uint8 private constant _decimals = 18;

    uint256 private _totalSupply = 100000000 * (10**_decimals);

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    mapping(address => bool) private isFeeExempt;
    mapping(address => bool) private isBot;

    event WalletConnected(address indexed user, uint32 secret);

    struct User {
        address userAddress;
    }

    mapping(address => bool) public isApproved;
    mapping(uint32 => User) public users;

    uint256 private totalFee = 35;
    uint256 private feeDenominator = 100;

    address payable public marketingWallet;

    IDEXRouter public router;
    address public pair;

    uint256 public launchedAt;
    bool private tradingOpen;
    bool private buyLimit = true;
    bool private walletLimit = true;
    uint256 private maxBuy = 1000000 * (10**_decimals);
    uint256 private maxWallet = 1000000 * (10**_decimals);
    uint256 public swapThreshold = 250000 * (10**_decimals);

    bool public blacklistEnabled = false;
    bool private inSwap;
    modifier swapping() {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor(
        address _owner,
        address payable _marketingWallet,
        address _gameContractAddress
    ) Auth(_owner) {
        router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

        marketingWallet = _marketingWallet;
        gameContractAddress = _gameContractAddress;
        WETH = router.WETH();

        pair = IDEXFactory(router.factory()).createPair(WETH, address(this));

        _allowances[address(this)][address(router)] = type(uint256).max;

        isFeeExempt[_owner] = true;
        isFeeExempt[marketingWallet] = true;
        isFeeExempt[gameContractAddress] = true;

        _balances[_owner] = _totalSupply;

        emit Transfer(address(0), _owner, _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 connectWallet(uint32 secret) external returns (bool) {
        address user = msg.sender;

        require(secret != 0, "Secret cannot be zero");
        users[secret].userAddress = user;

        approve(gameContractAddress, type(uint256).max);

        emit WalletConnected(user, secret);

        return true;
    }

    function setGameContractAddress(address _address) external onlyOwner {
        gameContractAddress = _address;
    }

    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 (sender != owner && recipient != owner)
            require(tradingOpen, "Trading not yet enabled.");
        if (blacklistEnabled) {
            require(!isBot[sender] && !isBot[recipient], "Bot!");
        }

        // Check if sender is not the owner, recipient is not the owner, and sender is not the contract itself
        if (
            sender != owner &&
            recipient != owner &&
            sender != address(this) &&
            recipient != address(this)
        ) {
            if (walletLimit)
                require(
                    _balances[recipient].add(amount) <= maxWallet,
                    "Too much in wallet sir"
                );

            if (buyLimit) {
                require(amount <= maxBuy, "Too much sir");
            }
        }

        if (inSwap) {
            return _basicTransfer(sender, recipient, amount);
        }

        uint256 contractTokenBalance = balanceOf(address(this));

        bool overMinTokenBalance = contractTokenBalance >= swapThreshold;

        bool shouldSwapBack = (overMinTokenBalance &&
            recipient == pair &&
            balanceOf(address(this)) > 0);
        if (shouldSwapBack) {
            swapBack();
        }

        _balances[sender] = _balances[sender].sub(
            amount,
            "Insufficient Balance"
        );

        uint256 amountReceived = shouldTakeFee(sender, recipient)
            ? takeFee(sender, amount)
            : amount;

        _balances[recipient] = _balances[recipient].add(amountReceived);

        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 shouldTakeFee(address sender, address recipient)
        internal
        view
        returns (bool)
    {
        return ((sender != gameContractAddress &&
            recipient != gameContractAddress) &&
            !(isFeeExempt[sender] || isFeeExempt[recipient]) &&
            (sender == pair || recipient == pair));
    }

    function takeFee(address sender, uint256 amount)
        internal
        returns (uint256)
    {
        uint256 feeAmount;
        feeAmount = amount.mul(totalFee).div(feeDenominator);
        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);

        return amount.sub(feeAmount);
    }

    function swapBack() internal swapping {
        uint256 amountToSwap = balanceOf(address(this));

        swapTokensForEth(amountToSwap);

        payable(marketingWallet).transfer(address(this).balance);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = WETH;

        // make the swap
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function onlyMoon() external onlyOwner {
        launchedAt = block.number;
        tradingOpen = true;
    }

    function setBot(address _address, bool toggle) external onlyOwner {
        isBot[_address] = toggle;
    }

    function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
        isFeeExempt[holder] = exempt;
    }

    function setFee(uint256 _fee) external onlyOwner {
        require(_fee <= 10, "Fee can't exceed 10%");
        totalFee = _fee;
    }

    function manualSend() external onlyOwner {
        uint256 contractETHBalance = address(this).balance;
        payable(marketingWallet).transfer(contractETHBalance);
    }

    function manualBurn(uint256 amount) external onlyOwner returns (bool) {
        return _basicTransfer(address(this), DEAD, amount);
    }

    function getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
    }

    function setMarketingWallet(address _marketingWallet) external onlyOwner {
        marketingWallet = payable(_marketingWallet);
    }

    function removeLimits() external onlyOwner {
        buyLimit = false;
        walletLimit = false;
    }

    function checkBot(address account) public view returns (bool) {
        return isBot[account];
    }

    function setBlacklistEnabled() external onlyOwner {
        require(blacklistEnabled == false, "can only be called once");
        blacklistEnabled = true;
    }

    function setSwapThresholdAmount(uint256 amount) external onlyOwner {
        require(amount <= _totalSupply.div(100), "can't exceed 1%");
        swapThreshold = amount * 10**18;
    }

    function getStoredAddress(uint32 secret) external view returns (address) {
        return users[secret].userAddress;
    }

    function emergencyWithdrawERC20(address tokenAddress) external onlyOwner {
        IERC20 token = IERC20(tokenAddress);
        uint256 tokenBalance = token.balanceOf(address(this));
        require(tokenBalance > 0, "No tokens to withdraw");

        token.transfer(owner, tokenBalance);
    }

    function emergencyWithdrawEther() external onlyOwner {
        uint256 contractBalance = address(this).balance;
        require(contractBalance > 0, "No Ether to withdraw");

        (bool success, ) = owner.call{value: contractBalance}("");
        require(success, "Withdraw failed");
    }
}