Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "erc721a/contracts/ERC721A.sol";  

//////////////////////////////////////////////////////////
///        _                 _ _                       ///
///   __ _| |__   ___  _   _| | |_ _____      ___ __   ///
///  / _` | '_ \ / _ \| | | | | __/ _ \ \ /\ / / '_ \  ///
/// | (_| | | | | (_) | |_| | | || (_) \ V  V /| | | | ///
///  \__, |_| |_|\___/ \__,_|_|\__\___/ \_/\_/ |_| |_| ///
///  |___/                                             ///
///                                                    ///
//////////////////////////////////////////////////////////

contract Ghoultown is ERC721A, Ownable {
    uint256 public constant MAX_SUPPLY = 7777;
    uint256 public constant FREE_MINT_AMOUNT = 777;
    uint256 public constant MINT_LIMIT = 10;
    uint256 public constant MINT_PRICE = 0.005 ether;
    
    string public baseURI;

    constructor() payable ERC721A("ghoultown", "GHOUL") {}

    function _baseURI() internal view virtual override returns (string memory) {
        return baseURI;
    }

    function setBaseURI(string calldata _new) external onlyOwner {
        baseURI = _new;
    }

    function mint(uint256 _amount) external payable {
        require(totalSupply() + _amount < MAX_SUPPLY, "ghoultown: mint would exceed total supply");
        require(_amount > 0 && _amount <= MINT_LIMIT, "ghoultown: mint amount too high");
        require(msg.value >= (MINT_PRICE * _amount), "ghoultown: insufficient eth sent");

        _mint(msg.sender, _amount);
    }

    function freeMint() external {
        require(totalSupply() < FREE_MINT_AMOUNT, "ghoultown: free mints exhausted");
        require(_numberMinted(msg.sender) <= MINT_LIMIT, "ghoultown: free mint limit reached");

        _mint(msg.sender, 1);
    }

    function withdraw(address payable to, uint256 amount) external onlyOwner {
        to.transfer(amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.0.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import './IERC721A.sol';

/**
 * @dev ERC721 token receiver interface.
 */
interface ERC721A__IERC721Receiver {
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is IERC721A {
    // Mask of an entry in packed address data.
    uint256 private constant BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;

    // The bit position of `numberMinted` in packed address data.
    uint256 private constant BITPOS_NUMBER_MINTED = 64;

    // The bit position of `numberBurned` in packed address data.
    uint256 private constant BITPOS_NUMBER_BURNED = 128;

    // The bit position of `aux` in packed address data.
    uint256 private constant BITPOS_AUX = 192;

    // Mask of all 256 bits in packed address data except the 64 bits for `aux`.
    uint256 private constant BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;

    // The bit position of `startTimestamp` in packed ownership.
    uint256 private constant BITPOS_START_TIMESTAMP = 160;

    // The bit mask of the `burned` bit in packed ownership.
    uint256 private constant BITMASK_BURNED = 1 << 224;
    
    // The bit position of the `nextInitialized` bit in packed ownership.
    uint256 private constant BITPOS_NEXT_INITIALIZED = 225;

    // The bit mask of the `nextInitialized` bit in packed ownership.
    uint256 private constant BITMASK_NEXT_INITIALIZED = 1 << 225;

    // The tokenId of the next token to be minted.
    uint256 private _currentIndex;

    // The number of tokens burned.
    uint256 private _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned.
    // See `_packedOwnershipOf` implementation for details.
    //
    // Bits Layout:
    // - [0..159]   `addr`
    // - [160..223] `startTimestamp`
    // - [224]      `burned`
    // - [225]      `nextInitialized`
    mapping(uint256 => uint256) private _packedOwnerships;

    // Mapping owner address to address data.
    //
    // Bits Layout:
    // - [0..63]    `balance`
    // - [64..127]  `numberMinted`
    // - [128..191] `numberBurned`
    // - [192..255] `aux`
    mapping(address => uint256) private _packedAddressData;

    // Mapping from token ID to approved address.
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    /**
     * @dev Returns the starting token ID. 
     * To change the starting token ID, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev Returns the next token ID to be minted.
     */
    function _nextTokenId() internal view returns (uint256) {
        return _currentIndex;
    }

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count. 
     * To get the total number of tokens minted, please see `_totalMinted`.
     */
    function totalSupply() public view override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than `_currentIndex - _startTokenId()` times.
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * @dev Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view returns (uint256) {
        // Counter underflow is impossible as _currentIndex does not decrement,
        // and it is initialized to `_startTokenId()`
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev Returns the total number of tokens burned.
     */
    function _totalBurned() internal view returns (uint256) {
        return _burnCounter;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        // The interface IDs are constants representing the first 4 bytes of the XOR of
        // all function selectors in the interface. See: https://eips.ethereum.org/EIPS/eip-165
        // e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`
        return
            interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
            interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
            interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return _packedAddressData[owner] & BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return (_packedAddressData[owner] >> BITPOS_NUMBER_MINTED) & BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        return (_packedAddressData[owner] >> BITPOS_NUMBER_BURNED) & BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        return uint64(_packedAddressData[owner] >> BITPOS_AUX);
    }

    /**
     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal {
        uint256 packed = _packedAddressData[owner];
        uint256 auxCasted;
        assembly { // Cast aux without masking.
            auxCasted := aux
        }
        packed = (packed & BITMASK_AUX_COMPLEMENT) | (auxCasted << BITPOS_AUX);
        _packedAddressData[owner] = packed;
    }

    /**
     * Returns the packed ownership data of `tokenId`.
     */
    function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr)
                if (curr < _currentIndex) {
                    uint256 packed = _packedOwnerships[curr];
                    // If not burned.
                    if (packed & BITMASK_BURNED == 0) {
                        // Invariant:
                        // There will always be an ownership that has an address and is not burned
                        // before an ownership that does not have an address and is not burned.
                        // Hence, curr will not underflow.
                        //
                        // We can directly compare the packed value.
                        // If the address is zero, packed is zero.
                        while (packed == 0) {
                            packed = _packedOwnerships[--curr];
                        }
                        return packed;
                    }
                }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * Returns the unpacked `TokenOwnership` struct from `packed`.
     */
    function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
        ownership.addr = address(uint160(packed));
        ownership.startTimestamp = uint64(packed >> BITPOS_START_TIMESTAMP);
        ownership.burned = packed & BITMASK_BURNED != 0;
    }

    /**
     * Returns the unpacked `TokenOwnership` struct at `index`.
     */
    function _ownershipAt(uint256 index) internal view returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnerships[index]);
    }

    /**
     * @dev Initializes the ownership slot minted at `index` for efficiency purposes.
     */
    function _initializeOwnershipAt(uint256 index) internal {
        if (_packedOwnerships[index] == 0) {
            _packedOwnerships[index] = _packedOwnershipOf(index);
        }
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnershipOf(tokenId));
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return address(uint160(_packedOwnershipOf(tokenId)));
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = _baseURI();
        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    /**
     * @dev Casts the address to uint256 without masking.
     */
    function _addressToUint256(address value) private pure returns (uint256 result) {
        assembly {
            result := value
        }
    }

    /**
     * @dev Casts the boolean to uint256 without branching.
     */
    function _boolToUint256(bool value) private pure returns (uint256 result) {
        assembly {
            result := value
        }
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override {
        address owner = address(uint160(_packedOwnershipOf(tokenId)));
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSenderERC721A() != owner)
            if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                revert ApprovalCallerNotOwnerNorApproved();
            }

        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        if (operator == _msgSenderERC721A()) revert ApproveToCaller();

        _operatorApprovals[_msgSenderERC721A()][operator] = approved;
        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.code.length != 0)
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                revert TransferToNonERC721ReceiverImplementer();
            }
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return
            _startTokenId() <= tokenId &&
            tokenId < _currentIndex && // If within bounds,
            _packedOwnerships[tokenId] & BITMASK_BURNED == 0; // and not burned.
    }

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement
     *   {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the balance and number minted.
            _packedAddressData[to] += quantity * ((1 << BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                (_boolToUint256(quantity == 1) << BITPOS_NEXT_INITIALIZED);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (to.code.length != 0) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex < end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex < end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 quantity) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the balance and number minted.
            _packedAddressData[to] += quantity * ((1 << BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                (_boolToUint256(quantity == 1) << BITPOS_NEXT_INITIALIZED);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            do {
                emit Transfer(address(0), to, updatedIndex++);
            } while (updatedIndex < end);

            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();

        bool isApprovedOrOwner = (_msgSenderERC721A() == from ||
            isApprovedForAll(from, _msgSenderERC721A()) ||
            getApproved(tokenId) == _msgSenderERC721A());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner.
        delete _tokenApprovals[tokenId];

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            // We can directly increment and decrement the balances.
            --_packedAddressData[from]; // Updates: `balance -= 1`.
            ++_packedAddressData[to]; // Updates: `balance += 1`.

            // Updates:
            // - `address` to the next owner.
            // - `startTimestamp` to the timestamp of transfering.
            // - `burned` to `false`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                BITMASK_NEXT_INITIALIZED;

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev Equivalent to `_burn(tokenId, false)`.
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        address from = address(uint160(prevOwnershipPacked));

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSenderERC721A() == from ||
                isApprovedForAll(from, _msgSenderERC721A()) ||
                getApproved(tokenId) == _msgSenderERC721A());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

        // Clear approvals from the previous owner.
        delete _tokenApprovals[tokenId];

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            // Updates:
            // - `balance -= 1`.
            // - `numberBurned += 1`.
            //
            // We can directly decrement the balance, and increment the number burned.
            // This is equivalent to `packed -= 1; packed += 1 << BITPOS_NUMBER_BURNED;`.
            _packedAddressData[from] += (1 << BITPOS_NUMBER_BURNED) - 1;

            // Updates:
            // - `address` to the last owner.
            // - `startTimestamp` to the timestamp of burning.
            // - `burned` to `true`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] =
                _addressToUint256(from) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                BITMASK_BURNED | 
                BITMASK_NEXT_INITIALIZED;

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
            bytes4 retval
        ) {
            return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Returns the message sender (defaults to `msg.sender`).
     *
     * If you are writing GSN compatible contracts, you need to override this function.
     */
    function _msgSenderERC721A() internal view virtual returns (address) {
        return msg.sender;
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function _toString(uint256 value) internal pure returns (string memory ptr) {
        assembly {
            // The maximum value of a uint256 contains 78 digits (1 byte per digit), 
            // but we allocate 128 bytes to keep the free memory pointer 32-byte word aliged.
            // We will need 1 32-byte word to store the length, 
            // and 3 32-byte words to store a maximum of 78 digits. Total: 32 + 3 * 32 = 128.
            ptr := add(mload(0x40), 128)
            // Update the free memory pointer to allocate.
            mstore(0x40, ptr)

            // Cache the end of the memory to calculate the length later.
            let end := ptr

            // We write the string from the rightmost digit to the leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            // Costs a bit more than early returning for the zero case,
            // but cheaper in terms of deployment and overall runtime costs.
            for { 
                // Initialize and perform the first pass without check.
                let temp := value
                // Move the pointer 1 byte leftwards to point to an empty character slot.
                ptr := sub(ptr, 1)
                // Write the character to the pointer. 48 is the ASCII index of '0'.
                mstore8(ptr, add(48, mod(temp, 10)))
                temp := div(temp, 10)
            } temp { 
                // Keep dividing `temp` until zero.
                temp := div(temp, 10)
            } { // Body of the for loop.
                ptr := sub(ptr, 1)
                mstore8(ptr, add(48, mod(temp, 10)))
            }
            
            let length := sub(end, ptr)
            // Move the pointer 32 bytes leftwards to make room for the length.
            ptr := sub(ptr, 32)
            // Store the length.
            mstore(ptr, length)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.0.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

/**
 * @dev Interface of an ERC721A compliant contract.
 */
interface IERC721A {
    /**
     * The caller must own the token or be an approved operator.
     */
    error ApprovalCallerNotOwnerNorApproved();

    /**
     * The token does not exist.
     */
    error ApprovalQueryForNonexistentToken();

    /**
     * The caller cannot approve to their own address.
     */
    error ApproveToCaller();

    /**
     * The caller cannot approve to the current owner.
     */
    error ApprovalToCurrentOwner();

    /**
     * Cannot query the balance for the zero address.
     */
    error BalanceQueryForZeroAddress();

    /**
     * Cannot mint to the zero address.
     */
    error MintToZeroAddress();

    /**
     * The quantity of tokens minted must be more than zero.
     */
    error MintZeroQuantity();

    /**
     * The token does not exist.
     */
    error OwnerQueryForNonexistentToken();

    /**
     * The caller must own the token or be an approved operator.
     */
    error TransferCallerNotOwnerNorApproved();

    /**
     * The token must be owned by `from`.
     */
    error TransferFromIncorrectOwner();

    /**
     * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
     */
    error TransferToNonERC721ReceiverImplementer();

    /**
     * Cannot transfer to the zero address.
     */
    error TransferToZeroAddress();

    /**
     * The token does not exist.
     */
    error URIQueryForNonexistentToken();

    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    /**
     * @dev Returns the total amount of tokens stored by the contract.
     *
     * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
     */
    function totalSupply() external view returns (uint256);

    // ==============================
    //            IERC165
    // ==============================

    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);

    // ==============================
    //            IERC721
    // ==============================

    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    // ==============================
    //        IERC721Metadata
    // ==============================

    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"FREE_MINT_AMOUNT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_SUPPLY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"freeMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_new","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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