Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2023-03-06
*/

// SPDX-License-Identifier: MIT                                           o888o     

// ERC721A Contracts v3.3.0
// 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);
}

// File: https://github.com/chiru-labs/ERC721A/blob/main/contracts/ERC721A.sol


// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;


/**
 * @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)
        }
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Strings.sol


// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol


// 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;
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol


// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;


/**
 * @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);
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Address.sol


// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/IERC721Receiver.sol


// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/IERC165.sol


// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface 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);
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/ERC165.sol


// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;


/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/IERC721.sol


// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;


/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @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 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);
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/extensions/IERC721Metadata.sol


// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;


/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @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);
}

// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/ERC721.sol


// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;








/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // 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;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @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) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @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 overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), 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 {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _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 {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, data);
    }

    /**
     * @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.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @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`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * 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
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits an {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a 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 _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * 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, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}


pragma solidity ^0.8.0;


contract HungryDragon is ERC721A, Ownable {

    using Strings for uint256;
    string private baseURI;
    uint256 public price = 0.012 ether;
    uint256 public maxPerTx = 6;
    uint256 public maxFreePerWallet = 1;
    uint256 public totalFree = 170;
    uint256 public maxSupply = 1700;

    bool public mintEnabled = false;

    mapping(address => uint256) private _mintedFreeAmount;

    constructor() ERC721A("Hungry Dragon", "HD") {
        _safeMint(msg.sender, 1);
        setBaseURI("ipfs://bafybeierou6ijymvoh6bs4pqis47ys6utk4bt5hdq3wuq53ict2iu4fkze/");
    }

    function mint(uint256 count) external payable {
        uint256 cost = price;
        bool isFree = ((totalSupply() + count < totalFree + 1) &&
            (_mintedFreeAmount[msg.sender] + count <= maxFreePerWallet));

        if (isFree) {
            cost = 0;
        }

        require(msg.value >= count * cost, "Please send the exact amount.");
        require(totalSupply() + count < maxSupply + 1, "No more left.");
        require(mintEnabled, "Mint is not live yet.");
        require(count < maxPerTx + 1, "Max per TX reached.");
        require(tx.origin == msg.sender, "Contracts not allowed to mint.");


        if (isFree) {
            _mintedFreeAmount[msg.sender] += count;
        }

        _safeMint(msg.sender, count);
    }

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

    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(
            _exists(tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );
        return string(abi.encodePacked(baseURI, tokenId.toString(), ".json"));
    }

    function setBaseURI(string memory uri) public onlyOwner {
        baseURI = uri;
    }

    function setFreeAmount(uint256 amount) external onlyOwner {
        totalFree = amount;
    }

    function setPrice(uint256 _newPrice) external onlyOwner {
        price = _newPrice;
    }

    function flipSale() external onlyOwner {
        mintEnabled = !mintEnabled;
    }

    function withdraw() external onlyOwner {
        (bool success, ) = payable(msg.sender).call{
            value: address(this).balance
        }("");
        require(success, "Transfer failed.");
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","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":[{"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":"flipSale","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":[],"name":"maxFreePerWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerTx","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"count","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"mintEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","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":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"uri","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"setFreeAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newPrice","type":"uint256"}],"name":"setPrice","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":"totalFree","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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