/**
*Submitted for verification at Etherscan.io on 2022-01-31
*/
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @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);
}
}
// File: @openzeppelin/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: @openzeppelin/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: @openzeppelin/contracts/utils/Address.sol
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @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
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 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: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol
// OpenZeppelin Contracts v4.4.1 (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 `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/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: @openzeppelin/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: @openzeppelin/contracts/token/ERC721/IERC721.sol
// OpenZeppelin Contracts v4.4.1 (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`, 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 Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @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 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);
/**
* @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;
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol)
pragma solidity ^0.8.0;
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Enumerable is IERC721 {
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);
/**
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
* Use along with {totalSupply} to enumerate all tokens.
*/
function tokenByIndex(uint256 index) external view returns (uint256);
}
// File: @openzeppelin/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: contracts/LowerGas.sol
pragma solidity ^0.8.0;
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Does not support burning tokens to address(0).
*
* Assumes that an owner cannot have more than the 2**128 (max value of uint128) of supply
*/
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 internal currentIndex = 0;
uint256 internal immutable maxBatchSize;
// 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 ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) internal _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// 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
* `maxBatchSize` refers to how much a minter can mint at a time.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_
) {
require(maxBatchSize_ > 0, 'ERC721A: max batch size must be nonzero');
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view override returns (uint256) {
require(index < totalSupply(), 'ERC721A: global index out of bounds');
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) {
require(index < balanceOf(owner), 'ERC721A: owner index out of bounds');
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert('ERC721A: unable to get token of owner by index');
}
/**
* @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 ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(owner != address(0), 'ERC721A: balance query for the zero address');
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(owner != address(0), 'ERC721A: number minted query for the zero address');
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert('ERC721A: unable to determine the owner of token');
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @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 overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return '';
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, 'ERC721A: approval to current owner');
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
'ERC721A: approve caller is not owner nor approved for all'
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view override returns (address) {
require(_exists(tokenId), 'ERC721A: approved query for nonexistent token');
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public override {
require(operator != _msgSender(), 'ERC721A: approve to caller');
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_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 override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, '');
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
'ERC721A: 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`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), 'ERC721A: mint to the zero address');
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), 'ERC721A: token already minted');
require(quantity <= maxBatchSize, 'ERC721A: quantity to mint too high');
require(quantity > 0, 'ERC721A: quantity must be greater 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
'ERC721A: transfer to non ERC721Receiver implementer'
);
updatedIndex++;
}
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 {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(isApprovedOrOwner, 'ERC721A: transfer caller is not owner nor approved');
require(prevOwnership.addr == from, 'ERC721A: transfer from incorrect owner');
require(to != address(0), 'ERC721A: transfer to the zero address');
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(prevOwnership.addr, prevOwnership.startTimestamp);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
/**
* @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(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert('ERC721A: transfer to non ERC721Receiver implementer');
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* 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`.
*/
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.
*
* 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` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
pragma solidity ^0.8.0;
contract xPunks is ERC721A, Ownable {
using Strings for uint256;
string public uriPrefix = "";
string public uriSuffix = ".json";
mapping(address => bool) whitelist;
uint256 public cost = 0.00 ether;
uint256 public maxSupply = 10000;
uint256 public maxMintAmountPerTx = 100;
uint256 public nftPerAddressLimitWl = 10;
bool public paused = true;
bool public onlyWhitelisted = true;
mapping(address => uint256) public addressMintedBalance;
constructor() ERC721A("0xPunks", "0xPunk", maxMintAmountPerTx) {
whitelist[0x8950507282B85127eBf0c27465a3CBc5079e9B8B] = true;
whitelist[0xa7868550a0B397Da722D9705AA49B7299B8A33EF] = true;
whitelist[0x76433F75F03af38621937eA1dF9D2AfD7a40e945] = true;
whitelist[0xb58b6370d7d28f00906811AA591C4AB7e64D17cF] = true;
whitelist[0x0423A96A0f5e937182080FB49b552003B8385F98] = true;
whitelist[0x3ef083f9f48B5f3b7734aA582f7BF04cf2D4b173] = true;
whitelist[0xC23C131474F297445C80E01a82d2C26710e1eE04] = true;
whitelist[0x66c31c7f9f7b83e9f3dD7D4a1927718699C0Fd23] = true;
whitelist[0x060A8aCd75600A9C1BA459BE7552D39a8240c406] = true;
whitelist[0xaB0DFa07aC5E991C3932E871B6891C6af7C61394] = true;
whitelist[0x0705A9B50f75bF6217bd0489B30DC50516982EFA] = true;
whitelist[0xbDBA43F98D3609a92e92fA4e94Adca011E3dD10C] = true;
whitelist[0x0B74DF5BF962f95059a27bFBE24811eD7529B86D] = true;
whitelist[0xE1698607C930dC6330C5706827c033e1A810C8cd] = true;
whitelist[0x43A85e0Bc901BbA74fbEC5c968cc8A5BD58ed9D4] = true;
whitelist[0x709273edc511F6180f36dCebbF93d61E0e3e79e4] = true;
whitelist[0xcbee667d79772E21522B4e9130B567bA5094F08d] = true;
whitelist[0x87133bd017ae8E811d7b98Ebe542F03D532E4Bd2] = true;
whitelist[0xDfae7A193E246E6D99bF340193e5Ffa738D4EAbB] = true;
whitelist[0x9876449DE01A64a87F765aA72651CC795E44ef29] = true;
whitelist[0x8E2AF953De826e92E4bB253906D216a6d82BF4D0] = true;
whitelist[0x8EDb8FFDc0E690Bb5852a7d83D48246F18250D18] = true;
whitelist[0x3c0508B8F5c3e45119c6927A1ac49849fC67d32A] = true;
whitelist[0x7196dFb5a25f4A444a905Dc7e712E41c325D60EE] = true;
whitelist[0xb670357Fa3FAeDe5DC91CBe9F5D2A9D4e6dB3435] = true;
whitelist[0x69305Eb29BFdBf46eB194Fd148722DD76Ba82A72] = true;
whitelist[0xEEdD9171c591e01161c1b28a1D4a1db4eC030CEe] = true;
whitelist[0xeEeC3aD8773a980f42C50DC4167ae3F3C7BE2Ee1] = true;
whitelist[0x80c0088A56828BB0930bC28B93fcE0415B611d4e] = true;
whitelist[0xe4f5DC22B0d48f3243b90Dd7efd4d9a26Ad24EDF] = true;
whitelist[0x082fd10c51Ae3f47E0d6AeC3D81506a9FF7c2D93] = true;
whitelist[0xD415BC63A4d4966D52B638fC5f3B7ede7BffCAa2] = true;
whitelist[0x60aBc21754286A71D75b51947143A59319BA27fC] = true;
whitelist[0x6C6Bd1b569d8C6067514fbF94221330316d6d424] = true;
whitelist[0x6abe2A3Ff9DCb5389cf3c15A347B68CF539332c8] = true;
whitelist[0x5D9398a9a9b88764f49eBc7F0fdc8344bAd3C58d] = true;
whitelist[0x7d3C13FC1037652545395882Ba64C3F024E30841] = true;
whitelist[0x3a766e5FEb4a955103a5B57463593FE66B0C8dFD] = true;
whitelist[0x9841f6cDDE91ACa364C71b43469A8c9B021E096a] = true;
whitelist[0x6031B736D50F0D4845eB756169E74F7e3756e157] = true;
whitelist[0xb5A38E6Fa233Ad318eE22BED6B50a6EACB1f23ca] = true;
whitelist[0xDD41Ef8F9ce193abeD960ab9d30db0a0dee1DD29] = true;
whitelist[0xB1bb090F332743Cb2c618271f0a069d6d0F26b86] = true;
whitelist[0xbd8394B4040485984031f7956eAf106e1B30966D] = true;
whitelist[0xEc2bDcb9d003593752246c5C582417b4732388AF] = true;
whitelist[0x95181454510CCcD77EC910146a79BBc5619Daf76] = true;
whitelist[0x2FA5D2dFA5317d7E0a5012547a23787A99F37B02] = true;
whitelist[0x2E1d22353c8BFBf09B46e62D1F48Bd5b66dadE1f] = true;
whitelist[0x940618ce8741C7eC2e95A6f11D79F9252A5Cce15] = true;
whitelist[0x76f6AD15694FEEE5F3a055baD2E45D185f0048be] = true;
whitelist[0x4df3772b95A745Fc850B7f636A17FA6169171468] = true;
whitelist[0x75576DaB750c88B3CA8eb2B5510C47e3BF7c78a4] = true;
whitelist[0xf6b4E7e3605C72EaEf290eB4C90C4bDB128c0DAb] = true;
whitelist[0xAB8EA35D2e200bF9089b7E9Bee47568Fdb211012] = true;
whitelist[0xB5c6D5bd47cDf90B897AA3D10c82aFa8178E6E95] = true;
whitelist[0x53475949ACf6C33CDb9d38663c5Ca1337f9a4aC8] = true;
whitelist[0x4547E9f00d6653CbA21eAf876407eC402044e7d1] = true;
whitelist[0x5E70F21d15a4338Cc73829320a1633E078e2a7DB] = true;
whitelist[0xaB2F5627B9DE831d75ab893D21Df0193E484c2c5] = true;
whitelist[0xDc13005aBCEB471e3513f1a4A1b3279A215EE926] = true;
whitelist[0xc012d72Cd1d05B5d4A69361C8f1d292516F6E46f] = true;
whitelist[0xB527f9b886231Bd5609264767521b1A22A81bc32] = true;
whitelist[0xaF3c7adA8Cb623B2b4cd2Aa497F2689fcA1DB192] = true;
whitelist[0xD53bCC6a2C2d4C60D889Bb9bB34913dA58b9d104] = true;
whitelist[0x112f7E9307736149540954EFDCd4A0B60881496d] = true;
whitelist[0x23b5Da4853B2C846aF5554B9FB68Bf5686B5353a] = true;
whitelist[0x640e5b00aB5e4368A2BB077255A8B5E27C87997E] = true;
whitelist[0x8A1d7a7e230849d88Cd237Bb446bb38BBeacc051] = true;
whitelist[0xdbeAF92c601721Da293ad636903627e0955D94c5] = true;
whitelist[0xB438105f9049294bAbdC8040f1F8D1d6FF7570c4] = true;
whitelist[0x288F4336Ed3A09B1efE622C1cdcDBf4b168FCA39] = true;
whitelist[0xeDF6714512eb99Dc339741CA8FBb47CF77448d3C] = true;
whitelist[0x3aE5f284430b14a12ffd4E2Be6ed425c15650D20] = true;
whitelist[0x6a575eCAe3d5cCc4bB1fAf2342eB77170b19A412] = true;
whitelist[0x03A8726172fA51D64b0c3D583dE5876e73d73d0e] = true;
whitelist[0x1608Ff5289837bE911607a1384C6FC4eeb42f162] = true;
whitelist[0x6003838aFef9c93f050070F5b947acCaC61C8dC1] = true;
whitelist[0xD9498e2fc646B5882e78a6243FB5EfAeDc1cD85f] = true;
whitelist[0x222d6b7D7270F63d1e55587f5703F71Bf48f5305] = true;
whitelist[0x399b5B66B70AD7B884a4b91A41049a5D0023076B] = true;
whitelist[0x54d6d8Ae3BF787d89A673241F14817886f057aEC] = true;
whitelist[0x2BD0A65B7E0f5759ce21E380269a42b615E8eA15] = true;
whitelist[0xf11Fa70332dF9f3b40498bD3D8E837d69CAB76eC] = true;
whitelist[0x3541500AA53bC242ae50498E91850a3dE89F4dfc] = true;
whitelist[0xED47dE07c8a00c7d3eC096598A1a50e1467Ca65B] = true;
whitelist[0xc605564e306a7bDC86d34Cf0CA39826BC34A5780] = true;
whitelist[0x616aBaAEE8D6CEac7d6B8a81DabBF24614A8A71A] = true;
whitelist[0x93b48aA209Dc9d9760ffB979A004a9623E085608] = true;
whitelist[0x65C540ab906d287D3DE03B1BeB0A928e95AE4a68] = true;
whitelist[0x14a88E30B610Cd12A029BC8B182d80d0C5cBF130] = true;
whitelist[0x5887f4967b086123D0034945A180B4AE404BAB59] = true;
whitelist[0x216967cC1E2bc57A296A55b9687AC184485374a9] = true;
whitelist[0x08924f908484eA57EFe132C0dbA1924Cd1B9eE7E] = true;
whitelist[0x505A09A559b3Dd0a9DEf9E0A4a37aDc9aA3f18E2] = true;
whitelist[0xb266E542c645627da44821b1010C25768E23e112] = true;
whitelist[0x884d9a4C073096Ee84951bf079F8E17bC23AdD05] = true;
whitelist[0xcbF727141be136C8B3993f06893c5c7466bAC013] = true;
whitelist[0x929a12d5d22ffEf6E39Bc1c2276e1EB61f73dA4e] = true;
whitelist[0xdEe822Bf349F4f27aAab0FC2301e35eb4b9fE82B] = true;
whitelist[0xfD69501D62BF232c2fF1A186c9757047E37B7469] = true;
whitelist[0xB5A2370E6e741c6A12c40E6FF8FC6852D38e88cE] = true;
whitelist[0x36D7e86212Eff3837671ddb76F5111A4E5fE6f9F] = true;
whitelist[0x974F851a17dDE74aBA727eEdbC310492778e5aAF] = true;
whitelist[0x075CaFcDa6cC6B472ED9ac0A23D22730a112Fc11] = true;
whitelist[0x1878166eE6d72E287c75bc169ef2c4e7eA5B7a5E] = true;
whitelist[0xf390fBf1993F2559F5425309D5230D74e9a0B84c] = true;
whitelist[0xA7f1a10c9F862444d2E87f4EC91293B9926181EF] = true;
whitelist[0x4B8Db3EeE0dBf35a3D13d910e48Ab29b57EAf381] = true;
whitelist[0xc95332cd0f986Dc8bFa9ec137bB846530Bb7C993] = true;
whitelist[0x7F4F5983e886fC61a054b6b5566adc0652799e24] = true;
whitelist[0xf72E7c395e252926C11152d59e28f35bD204508A] = true;
whitelist[0x4A52b132a00330fa03c87a563D7909A38d8afee8] = true;
whitelist[0x7cA9089962600A9e708444aE2Cf0AfFDcC0577E0] = true;
whitelist[0x67B1045f193B35a31C90BE77e3f1C3da95339799] = true;
whitelist[0x894d3BE637D08Dd563a4F0680d07bfF63F5023bb] = true;
whitelist[0x825e825D65ce535bac38617d25D0F6182ACa5A80] = true;
whitelist[0xA56AC6Bf86212B039c0d5a4F32039B8DA1a9c6AE] = true;
whitelist[0x91cB240fdF49c9231A44391a7B899ab8D8EBEa85] = true;
whitelist[0xdC65010f53576BFf30F7eb3a6B4C055E50e1dD59] = true;
whitelist[0x718bc2a2646d3bd44a4949817e9eC3977E63c7F9] = true;
whitelist[0xc6D22E96b86811dcA83F4b710610F5ab697534b5] = true;
whitelist[0xE181b5C3bA16b6b13b5Bf3FEbe569C7BF300358c] = true;
whitelist[0x3A8B8d1d156477BF6Fd20f248eF8b2f1d03fB251] = true;
whitelist[0xa85352ff10189979e9A2d051Ff7BeF36CfA4105E] = true;
whitelist[0x267d7aDC497CdaCc9E986b03E76030173c2f071F] = true;
whitelist[0x61299F94ede485b997760e5fC789f432D82ba60e] = true;
whitelist[0x1B7C38ED20337Eb5107E4d2324D6fb7485B0828B] = true;
whitelist[0x8A53b410031c6C606CD495DFE1F3e65003dC384C] = true;
whitelist[0xF0BF03895366f562A5d079EbED178Ebb0F3C137f] = true;
whitelist[0x9050618292cFd34C7768e1DF8B0C14CaFE99AE2D] = true;
whitelist[0x3F5d7a01D9A32817d9cE7EEb85cF40e95c32Cb84] = true;
whitelist[0xA26c5F0b89322cd75828d5085Db8164287315df3] = true;
whitelist[0x101A0778cda24359A096342A2Aa45eF52A6Ec1dF] = true;
whitelist[0xffC81e8FF9A40727d7df97233F1Fae26344EB90C] = true;
whitelist[0x8BB8056D9B8A6f7c19d292182E8bD0555703619D] = true;
whitelist[0xAfC2F698a08B957CCc33a2D931AacEf2F970959E] = true;
whitelist[0x154500Ccb9cC55A0E390966AA53Fe10E7DA1047d] = true;
whitelist[0x332EEbd4bC9027176ABac020B32FB401B685b622] = true;
whitelist[0x4a8A003acC8a2c0329286e46650bE18dfe2cb12d] = true;
whitelist[0x18A47791DFd3A120BbB74dCcB78080773642B904] = true;
whitelist[0xc42480b588Aff1B9f15Db3845fb74299195C8FCE] = true;
whitelist[0x3679a16c418da3416F0D69C9F2458B2bFF795661] = true;
whitelist[0xCE8115142c4F1a6800eFE097B7906C69391A4E0f] = true;
whitelist[0xb87887822e4F856D9c9BeE711970474b2804e85B] = true;
whitelist[0x823b47733E2B3eE86cfF4263CE3Df8FF3FD733c3] = true;
whitelist[0x8f4EA43f0CAf2a8D9Bb0dC4d2e23C809F13807da] = true;
whitelist[0x888E0021b852BB4acE259e2a1E635d4dF090955c] = true;
whitelist[0x453AE45bd4a672A708902C5ecF7da9C746C22aE2] = true;
whitelist[0x06b745CB7564E6c7B1eaB76aa017000229f1fF7c] = true;
whitelist[0xF514Cda5173cDf41b2f1784cBc3dAAb68cd177bd] = true;
whitelist[0x585f2C2142550503E5441f1257512C6EDE6E9C14] = true;
whitelist[0x56CF2aFF10c47CcD54ea9bEF6c723fDdA18c09c8] = true;
whitelist[0x24C6E698a4bC01A70223F9d10bB6C4B7c62C3654] = true;
whitelist[0xc0206D84Ac53242B48700ee4d31292c9A039F56D] = true;
whitelist[0x3D7E059A0805cEe4eAd6052725E2738275E873d2] = true;
whitelist[0x7f87b63c5DE256E81cC9465C3364d2c288837406] = true;
whitelist[0xF7ce09F3df6c357dd3337F5700b0ec64E4b4cd1B] = true;
whitelist[0x352469270f9AebcF41503fAa69f9d9a2Dd21271F] = true;
whitelist[0xf9d1144F72E59Cf2Ec1c0A9e1a35a93B41B28F95] = true;
whitelist[0x7597CF59d781d626D851D3301AD7DAb682692788] = true;
whitelist[0x0e8aF8a5ad2dE05d29092b0456089ad46657c67e] = true;
whitelist[0xEb7BC5C16C0E31Aa4f386E7B1D529c45D7750AC7] = true;
whitelist[0xEb7BC5C16C0E31Aa4f386E7B1D529c45D7750AC7] = true;
whitelist[0x780CFD2F5fA3E3cB8F99Bc14A0879C698Db04583] = true;
whitelist[0xe6E416d39Dd0b521dA1b59D3af4D8930e6d5626B] = true;
whitelist[0xA79042D975C435b5B02196e363F4A09147230ebf] = true;
whitelist[0x732Bb12525961f5853154DeB9d0a4Aacd2eB240f] = true;
whitelist[0x70D7B21f7585c02A665aD6AC0C900AF0cEAB2b55] = true;
whitelist[0x0E01800b3Edf3933657d08aa39FE2152FC325E97] = true;
whitelist[0x7301A502ce32e15838Ec1E4F10e2BFc2Ec3bf0a0] = true;
whitelist[0x1Ccf5898c6Fa8208BAA2918A4fB4E283069bd1bE] = true;
whitelist[0x64A060C7b979e1de998Bca7AE30BB700fDaf6998] = true;
whitelist[0xF514CD2D661ad6bE472df3b7398492F40609bFEC] = true;
whitelist[0x8A1137F86d2e33BF6a1Fb97159B0327bf1bE19ff] = true;
whitelist[0x8D8f852De8698013E015A2a3260Df7409cB352E7] = true;
whitelist[0x530e6E083E6D842DD883D9D1F59a8733dA1Dbf9d] = true;
whitelist[0x5356d041cFdE0fbFa7691327AC29Fe9709C3F6B7] = true;
whitelist[0x74D6D53dD045220DCE6999b5C9a2E468d881c6c6] = true;
whitelist[0x299E736200fC47486f7BCfE04D5EEA8C7D0a7006] = true;
whitelist[0xb26a76fB5dA1a3cd337bC11be8b0222D2ab16e91] = true;
whitelist[0xeb42523A092CeaFb6b5b52b0a88d3F88154A3494] = true;
whitelist[0x173aaE27F24539142452Fe2FC2927F6966B04664] = true;
whitelist[0x5Ab733A1cbBd39f452BdC6869CE30e7BBBA3D3D0] = true;
whitelist[0x649343619d5D1cd7a5C7D9553eD756BDa225B608] = true;
}
/**
* @dev validates whitelist
*/
modifier isWhitelisted(address _sender) {
require(whitelist[msg.sender], "Address does not exist in OG list");
_;
}
modifier mintCompliance(uint256 _mintAmount) {
require(_mintAmount > 0 && _mintAmount <= maxMintAmountPerTx, "Invalid mint amount!");
require(currentIndex + _mintAmount <= maxSupply, "Max supply exceeded!");
_;
}
function mint(uint256 _mintAmount) public payable mintCompliance(_mintAmount) {
require(!paused, "The contract is paused!");
require(!onlyWhitelisted, "Presale is on");
require(msg.value >= cost * _mintAmount, "Insufficient funds!");
_safeMint(msg.sender, _mintAmount);
}
function mintWhitelist(uint256 _mintAmount) public payable isWhitelisted(msg.sender) {
uint256 ownerMintedCount = addressMintedBalance[msg.sender];
require(!paused, "The contract is paused!");
require(onlyWhitelisted, "Presale has ended");
require(ownerMintedCount + _mintAmount <= nftPerAddressLimitWl, "max NFT per address exceeded");
require(msg.value >= cost * _mintAmount, "Insufficient funds!");
addressMintedBalance[msg.sender] += _mintAmount;
_safeMint(msg.sender, _mintAmount);
}
function mintOwner(address _to, uint256 _mintAmount) public mintCompliance(_mintAmount) onlyOwner {
_safeMint(_to, _mintAmount);
}
function walletOfOwner(address _owner)
public
view
returns (uint256[] memory)
{
uint256 ownerTokenCount = balanceOf(_owner);
uint256[] memory ownedTokenIds = new uint256[](ownerTokenCount);
uint256 currentTokenId = 0;
uint256 ownedTokenIndex = 0;
while (ownedTokenIndex < ownerTokenCount && currentTokenId <= maxSupply) {
address currentTokenOwner = ownerOf(currentTokenId);
if (currentTokenOwner == _owner) {
ownedTokenIds[ownedTokenIndex] = currentTokenId;
ownedTokenIndex++;
}
currentTokenId++;
}
return ownedTokenIds;
}
function tokenURI(uint256 _tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(_tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory currentBaseURI = _baseURI();
return bytes(currentBaseURI).length > 0
? string(abi.encodePacked(currentBaseURI, _tokenId.toString(), uriSuffix))
: "";
}
function setOnlyWhitelisted(bool _state) public onlyOwner {
onlyWhitelisted = _state;
}
function setCost(uint256 _cost) public onlyOwner {
cost = _cost;
}
function setNftPerAddressLimitWl(uint256 _limit) public onlyOwner {
nftPerAddressLimitWl = _limit;
}
function setUriPrefix(string memory _uriPrefix) public onlyOwner {
uriPrefix = _uriPrefix;
}
function setUriSuffix(string memory _uriSuffix) public onlyOwner {
uriSuffix = _uriSuffix;
}
function setPaused(bool _state) public onlyOwner {
paused = _state;
}
function withdraw() public onlyOwner {
(bool os,) = payable(owner()).call{value : address(this).balance}("");
require(os);
}
function _mintLoop(address _receiver, uint256 _mintAmount) internal {
_safeMint(_receiver, _mintAmount);
}
function _baseURI() internal view virtual override returns (string memory) {
return uriPrefix;
}
}
{
"compilationTarget": {
"xPunks.sol": "xPunks"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"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":"","type":"address"}],"name":"addressMintedBalance","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":"cost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","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":"maxMintAmountPerTx","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":"_mintAmount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_mintAmount","type":"uint256"}],"name":"mintOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintAmount","type":"uint256"}],"name":"mintWhitelist","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nftPerAddressLimitWl","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"onlyWhitelisted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"uint256","name":"_cost","type":"uint256"}],"name":"setCost","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_limit","type":"uint256"}],"name":"setNftPerAddressLimitWl","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"setOnlyWhitelisted","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"setPaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uriPrefix","type":"string"}],"name":"setUriPrefix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uriSuffix","type":"string"}],"name":"setUriSuffix","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":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":[],"name":"uriPrefix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uriSuffix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"walletOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]