Contract Diff Checker

Contract Source Code:

/**

AltBoy / ABOY

TG: https://t.me/altboyeth
X: https://x.com/altboyeth
Web: https://Www.altboyeth.com
Whitepaper: https://ow.ly/M3AF50QgcxC


*/

// SPDX-License-Identifier: MIT

pragma solidity 0.8.19;


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;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold
        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}


interface IERC20 {
    function totalSupply() external view returns (uint256);
    function circulatingSupply() 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 Ownable {
    address internal owner;
    constructor(address _owner) {owner = _owner;}
    modifier onlyOwner() {require(isOwner(msg.sender), "!OWNER"); _;}
    function isOwner(address account) public view returns (bool) {return account == owner;}
    function transferOwnership(address payable adr) public onlyOwner {owner = adr; emit OwnershipTransferred(adr);}
    event OwnershipTransferred(address owner);
}

interface IFactory{
        function createPair(address tokenA, address tokenB) external returns (address pair);
        function getPair(address tokenA, address tokenB) external view returns (address pair);
}

interface IRouter {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

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

contract AltBoy is IERC20, Ownable {
    using SafeMath for uint256;
    string private constant _name = 'AltBoy';
    string private constant _symbol = 'ABOY';
    uint8 private constant _decimals = 9;
    uint256 private _totalSupply = 238500000 * (10 ** _decimals);
    uint256 public _maxWalletToken = ( _totalSupply * 200 ) / 10000;
    mapping (address => uint256) _balances;
    mapping (address => uint256) public lastSellBlock;
    mapping (address => mapping (address => uint256)) private _allowances;
    IRouter router;
    address public pair;
    uint256 private marketingFee = 100;
    uint256 private developmentFee = 100;
    uint256 private totalFee = 2000;
    uint256 private sellFee = 2000;
    uint256 private transferFee = 200;
    uint256 private denominator = 10000;
    uint256 private launchTime;
    bool private swapping;
    bool private tradingAllowed = false;
    bool private swapEnabled = true;
    bool private oneSellPerBlock = true;
    modifier lockTheSwap {swapping = true; _; swapping = false;}
    mapping(address => bool) private isFeeExempt;
    uint256 private swapThreshold = ( _totalSupply * 300 ) / 100000;
    uint256 private _minTokenAmount = ( _totalSupply * 10 ) / 100000;
    address internal constant DEAD = 0x000000000000000000000000000000000000dEaD;
    address internal constant development_receiver = 0x8C57B2e19c2041b33f933059fe7bB2370be3d859; 
    address internal constant marketing_receiver = 0xddDc57A707583eCd3961F8D5b99a0d5022f4C3dB;

    constructor() Ownable(msg.sender) {
        IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
        router = _router;
        pair = _pair;
        isFeeExempt[address(this)] = true;
        isFeeExempt[marketing_receiver] = true;
        isFeeExempt[development_receiver] = true;
        isFeeExempt[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 getOwner() external view override returns (address) { return owner; }
    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 circulatingSupply() public view override returns (uint256) {return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(address(0)));}
    function totalSupply() public view override returns (uint256) {return _totalSupply;}

    function _transfer(address sender, address recipient, uint256 amount) private {
        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(!isFeeExempt[sender] && !isFeeExempt[recipient]){require(tradingAllowed, "tradingAllowed");}
        if(!isFeeExempt[sender] && !isFeeExempt[recipient] && recipient != address(pair) && recipient != address(DEAD)){
            require((_balances[recipient].add(amount)) <= _maxWalletToken, "ERC20: exceeds maximum wallet amount.");}
        if(tradingAllowed && launchTime.add(10 minutes) < block.timestamp){
            totalFee = uint256(200); sellFee =uint256(200); oneSellPerBlock = false; _maxWalletToken = _totalSupply;}
        if(tradingAllowed && launchTime.add(72 hours) < block.timestamp){
            totalFee = uint256(0); sellFee =uint256(0); transferFee =uint256(0);}
        if(recipient == pair && !isFeeExempt[sender] && tradingAllowed && oneSellPerBlock){require(lastSellBlock[sender] < block.number);}
        if(recipient == pair && !isFeeExempt[sender] && oneSellPerBlock){lastSellBlock[sender] = block.number;}
        if(shouldSwapBack(sender, recipient, amount)){swapAndLiquify();}
        _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 swapAndLiquify() private lockTheSwap {
        uint256 tokens = swapThreshold;
        if(balanceOf(address(this)) < tokens && sellFee == uint256(0)){
            tokens = balanceOf(address(this));}
        uint256 _denominator = marketingFee.add(developmentFee).mul(uint256(2));
        uint256 initialBalance = address(this).balance;
        swapTokensForETH(tokens);
        uint256 deltaBalance = address(this).balance.sub(initialBalance);
        uint256 unitBalance= deltaBalance.div(_denominator);
        uint256 marketingAmount = unitBalance.mul(uint256(2)).mul(marketingFee);
        if(marketingAmount > uint256(0)){payable(marketing_receiver).transfer(marketingAmount);}
        if(address(this).balance > uint256(0)){payable(development_receiver).transfer(address(this).balance);}
    }

    function swapTokensForETH(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();
        _approve(address(this), address(router), tokenAmount);
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp);
    }

    function shouldSwapBack(address sender, address recipient, uint256 amount) internal view returns (bool) {
        bool aboveMin = amount >= _minTokenAmount;
        bool balanceAvailable = balanceOf(address(this)) >= swapThreshold;
        if(balanceOf(address(this)) < swapThreshold && sellFee == uint256(0)){
            balanceAvailable = balanceOf(address(this)) > uint256(0);}
        return !swapping && swapEnabled && tradingAllowed && aboveMin && !isFeeExempt[sender] && recipient == pair && balanceAvailable;
    }

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

    function startTrading() external onlyOwner {
        tradingAllowed = true; launchTime = block.timestamp;
    }

    function getTotalFee(address sender, address recipient) internal view returns (uint256) {
        if(recipient == pair){return sellFee;}
        if(sender == pair){return totalFee;}
        return transferFee;
    }

    function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {
        if(getTotalFee(sender, recipient) > 0){
        uint256 feeAmount = amount.div(denominator).mul(getTotalFee(sender, recipient));
        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);
        _transfer(address(this), address(DEAD), amount.div(denominator).mul(getTotalFee(sender, recipient).div(uint256(2))));
        return amount.sub(feeAmount);} return amount;
    }

    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);
    }
}