ERC-721
NFT
Overview
Max Total Supply
5,721 GG
Holders
1,439
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
14 GGLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
GoodGuys
Compiler Version
v0.8.7+commit.e28d00a7
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.7; /** ____ _ ____ / ___| ___ ___ __| | / ___|_ _ _ _ ___ | | _ / _ \ / _ \ / _` | | | _| | | | | | / __| | |_| | (_) | (_) | (_| | | |_| | |_| | |_| \__ \ \____|\___/ \___/ \__,_| \____|\__,_|\__, |___/ |___/ goodguysnft.com */ import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "./IMillionDollarRat.sol"; contract GoodGuys is ERC721Enumerable, Ownable { using Strings for uint256; /// @dev Emitted when {startSale} is executed and the sale isn't on. event SaleStarted(); /// @dev Emitted when {pauseSale} is executed and the sale is on. event SalePaused(); /// @dev Emitted when {startSale} is executed for the first time. event ClaimsReserveUpdated(uint256 indexed reserve); /// @dev Emitted when a GG token is claimed based on a Rat held event GoodGuyClaimed(uint256 indexed ratId, uint256 indexed goodGuyId); /// @dev Emitted when {reveal} is executed (once-only). event Reveal(uint256 indexed startingIndex); /// @dev Emitted when {setTokenURI} is executed. event TokenURISet(string indexed tokenUri); /// @dev Emitted when {lockTokenURI} is executed (once-only). event TokenURILocked(string indexed tokenUri); string public constant GG_PROVENANCE = "79d0a3bd67ca56a46d31ab9ec9cf73be4ea11f259caf82fe301c2aa847a1cb87"; uint256 public constant MAX_RAT_SUPPLY = 3311; uint256 public constant MAX_GG_SUPPLY = 10000; uint256 public constant GG_PACK_LIMIT = 10; uint256 public constant GG_PRICE = 6 ether / 100; uint256 private constant CLAIM_PERIOD_DURATION = 1 weeks; uint256 private constant RECLAIM_RESERVE = 150; string private constant PLACEHOLDER_SUFFIX = "placeholder.json"; string private constant METADATA_INFIX = "/metadata/"; IMillionDollarRat private MDR = IMillionDollarRat(0x99B9791D1580BF504a1709d310923A46237c8f2C); uint256 public startingIndexBlock; uint256 public startingIndex; uint256 public ratClaimsReserve; uint256 public ratClaimsCounter; mapping(uint256 => bool) public ratClaims; bool public saleStarted; uint256 public saleStartedAt; bool public tokenURILocked; // current metadata base prefix string private _baseTokenUri; // prevent callers from sending ETH directly receive() external payable { revert(); } // prevent callers from sending ETH directly fallback() external payable { revert(); } constructor() ERC721("Good Guys", "GG") { } // ----- PUBLIC ----- // ------------------ /* * @dev Start or restart distribution. Only callable by the owner. * On the first call, * - set claim reserve value (once-only) * - set sale start timestamp and emit {ClaimsReserveUpdated} (once-only) * - emit {SaleStarted} * * On subsequent calls, * - restart sale and emit {SaleStarted} if paused; * otherwise, do nothing */ function startSale() public onlyOwner { // will also restart when on pause if (!saleStarted) { saleStarted = true; emit SaleStarted(); } // once-only: set timestamp and update reserve if (saleStartedAt == 0) { _setRatClaimsReserve(); saleStartedAt = block.timestamp; } } /* * @dev If sale is on, pause it and emit {SalePaused}; otherwise, do nothing. * Only callable by the owner. */ function pauseSale() public onlyOwner { if (saleStarted) { saleStarted = false; emit SalePaused(); } } /** * @dev Claim GGs based on Rats owned. Implements 6 ways to claim; which one is used * depends on the values of the arguments `claimedRatIds`, `from`, and `count`. * * I. Claim All. Claims as many GGs as there are unclaimed Rats held by the caller. * Set `claimedRatIds` to [] (empty array), `from` to 0, and `count` to 0 as well. * * II. Claim Based On A Specific Rat. Claims a single GG. * Set `claimedRatIds` to [`ratId`] (where `ratId` is the identity of a Rat you hold, * which hasn't been used to claim a GG), `from` to 0, and `count` to 0 as well. * * III. Claim Multiple GGs Based On Specific Rats. Same as II, for multiple GGs. * Set `claimedRatIds` to [`ratId1`, `ratId2`, ...] (only using identities of the Rats * you hold, which haven't been used to claim GGs), `from` to 0, and `count` to 0 as well. * * IV. Claim Based On The Next Unclaimed. Claims a single GG using the first available * Rat held by the caller, which hasn't been used in a claim before. * Set `claimedRatIds` to [0] (a single element, 0), `from` to 0, and `count` to 0 as well. * * V. Claim N. Same as IV, but will claim multiple GGs. Set `claimedRatIds` to [] (empty array), * `from` to 0, and `count` to the number of GGs to claim. Make sure you have enough unused Rats. * * VI. Claim Sequentially. Starting with a specific Rat identity, claim multiple GGs based on * the assumption that the Rats are allocated sequentially in the specified range and are all * held by the caller. I.e. `claim([], 362, 5)` will attemp to claim GGs based on held Rats * #362, #363, #364, #365, #366. */ function claim( uint256[] memory claimedRatIds, uint256 from, uint256 count ) public { _enforceSaleStarted(); _enforceClaimPeriod(true); if (claimedRatIds.length == 0) { if (from == 0 && count == 0) { // I. Claim All uint256[] memory unclaimed = _listUnclaimed(); _enforceClaimConditions(unclaimed.length); for (uint256 i = 0; i < unclaimed.length; i++) { _straightMintGG(msg.sender, unclaimed[i]); } } else { if (from == 0) { // claim count GGs _enforceClaimConditions(count); for (uint256 i = 0; i < count; i++) { _straightMintGG(msg.sender, _nextUnclaimedRatId()); } } else { // claim count GGs starting with from _enforceClaimConditions(count); uint256[] memory tokenIds = _enforceSequentialAvailability( from, count ); for (uint256 i = 0; i < tokenIds.length; i++) { _straightMintGG(msg.sender, tokenIds[i]); } } } } else { if (claimedRatIds.length == 1) { if (claimedRatIds[0] == 0) { // claim single GG based on the next unclaimed Rat _enforceClaimConditions(1); _straightMintGG(msg.sender, _nextUnclaimedRatId()); } else { // claim single GG based on a specific unclaimed Rat _enforceClaimConditions(1); _straightMintGG(msg.sender, claimedRatIds[0]); } } else { // claim multiple GGs based on specific unclaimed Rats _enforceClaimConditions(claimedRatIds.length); for (uint256 i = 0; i < claimedRatIds.length; i++) { _straightMintGG(msg.sender, claimedRatIds[i]); } } } _contemplateStartingIndex(); } /** * @dev After the claim period has elapsed, mint unclaimed GGs to the owner. */ function reclaim(uint256 count) public onlyOwner { _enforceClaimPeriod(false); _enforceClaimConditions(count); for (uint256 i = 0; i < count; i++) { _straightMintGG(msg.sender, MAX_RAT_SUPPLY); } _contemplateStartingIndex(); } /** * @dev Count Rats owned by the caller, for which GoodGuys NFTs * have not yet been claimed. */ function countUnclaimed() public view returns (uint256 result) { return _countUnclaimed(); } /** * @dev List identities of the Rats owned by the caller, for which * GoodGuys NFTs have not yet been claimed. */ function listUnclaimed() public view returns (uint256[] memory result) { return _listUnclaimed(); } /** * @dev Mint `numberOfGGs` GoodGuys. * - Will only mint up to (`MAX_GG_SUPPLY` - `ratClaimsReserve`) GoodGuys. * - Will mint up to `GG_PACK_LIMIT` items at once. * - Will only mint after the sale is started. * - ETH sent must equal (`numberOfGGs` * `GG_PRICE`) * * @param numberOfGGs The number of GoodGuys NFTs to mint. */ function mintGGs(uint256 numberOfGGs) public payable { _enforceSaleStarted(); require(totalSupply() < MAX_GG_SUPPLY, "SoldOut"); require(numberOfGGs > 0, "ZeroNFTsRequested"); require(numberOfGGs <= GG_PACK_LIMIT, "BuyLimitExceeded"); require(GG_PRICE * numberOfGGs == msg.value, "InvalidETHAmount"); require((MAX_GG_SUPPLY - ratClaimsReserve) - (totalSupply() - ratClaimsCounter) >= numberOfGGs, "MintableSupplyExceeded"); for (uint256 i = 0; i < numberOfGGs; i++) { // TODO: test _safeMint(msg.sender, totalSupply() + 1); } _contemplateStartingIndex(); } /** * @dev Set `startingIndex` and allow {tokenURI} to return actual * token URIs instead of the placeholder. Emit {Reveal} with * `startingIndex` as the argument. Only callable by the owner, and * only once. */ function reveal() public onlyOwner { require(startingIndex == 0, "StartingIndexAlreadySet"); // account for pre-sellout reveal if (startingIndexBlock == 0) { startingIndexBlock = block.number; } uint256 _start = uint256(blockhash(startingIndexBlock)) % MAX_GG_SUPPLY; if ( (_start > block.number) ? ((_start - block.number) > 255) : ((block.number - _start) > 255) ) { _start = uint256(blockhash(block.number - 1)) % MAX_GG_SUPPLY; } if (_start == 0) { _start = _start + 1; } startingIndex = _start; emit Reveal(startingIndex); } /** * @dev Set base token URI. Only callable by the owner and only * if token URI hasn't been locked through {lockTokenURI}. Emit * TokenURISet with the new value on every successful execution. * * @param newUri The new base URI to use from this point on. */ function setTokenURI(string memory newUri) public onlyOwner whenUriNotLocked { _baseTokenUri = newUri; emit TokenURISet(_baseTokenUri); } /** * @dev Prevent further modification of the currently set base token URI. * Do nothing if already locked. Emit {TokenURILocked} with the current * base token URI on initial execution. Only callable by the owner. */ function lockTokenURI() public onlyOwner { if (!tokenURILocked) { tokenURILocked = true; emit TokenURILocked(_baseTokenUri); } } /** * @dev Withdraw `amount` WEI out of the current balance. Only callable * by the owner. * * @param amount The amount to withdraw, in WEI. Must be greater than 0 and * must not exceed the contract balance. */ function withdraw(uint256 amount) public onlyOwner { require(amount > 0, "ZeroWEIRequested"); require(amount <= address(this).balance, "AmountExceedsBalance"); (bool success, ) = payable(msg.sender).call{value: amount}(""); require(success, "ETHTransferFailed"); } /** * @dev Prior to execution of {reveal}, return the placeholder URI for * any token minted or claimed; after the execution of {reveal}, return * adjusted URIs based on `startingIndex` cyclic shift. * * @param tokenId Identity of an existing (minted) GG NFT. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "UnknownTokenId"); string memory result; if (startingIndex > 0) { result = indexedTokenURI((tokenId + startingIndex) % MAX_GG_SUPPLY); } else { result = placeholderURI(); } return result; } // ---- INTERNAL ---- // ------------------ function _setRatClaimsReserve() internal { ratClaimsReserve = 3310 + RECLAIM_RESERVE; emit ClaimsReserveUpdated(ratClaimsReserve); } function claimPeriodInProgress() internal view returns (bool) { return (block.timestamp <= (saleStartedAt + CLAIM_PERIOD_DURATION)); } function _enforceSaleStarted() internal view { require(saleStarted, "SaleNotOn"); } function _enforceClaimPeriod(bool on) internal view { if (on) { require(claimPeriodInProgress(), "ClaimPeriodHasEnded"); } else { require(!claimPeriodInProgress(), "ClaimPeriodHasntEnded"); } } function _straightMintGG(address to, uint256 claimedRatId) internal { // TODO: test _safeMint(to, totalSupply() + 1); if (claimedRatId < MAX_RAT_SUPPLY) { // enforce rat not claimed require(!ratClaims[claimedRatId], "DuplicateClaim"); // enforce ownership require(to == MDR.ownerOf(claimedRatId), "RatNotOwned"); ratClaims[claimedRatId] = true; } // else is being reclaimed by the owner ratClaimsCounter++; uint256 emitRatId = (claimedRatId < MAX_RAT_SUPPLY) ? 0 : claimedRatId; uint256 emitGGId = totalSupply(); emit GoodGuyClaimed(emitRatId, emitGGId); } function _contemplateStartingIndex() internal { /* * If not all GGs have been minted and no one is minting past that point, the * code below is not executed, and thus startingIndexBlock is not set. We fix * that in {reveal}. */ if (startingIndexBlock == 0 && (totalSupply() == MAX_GG_SUPPLY)) { startingIndexBlock = block.number; } } function _countUnclaimed() internal view returns (uint256 result) { uint256 count = MDR.balanceOf(msg.sender); for (uint256 t = 0; t < count; t++) { if (!ratClaims[MDR.tokenOfOwnerByIndex(msg.sender, t)]) { result++; } } } function _listUnclaimed() internal view returns (uint256[] memory) { uint256 tokens = MDR.balanceOf(msg.sender); uint256 count = _countUnclaimed(); uint256[] memory tokensToClaim = new uint256[](count); uint256 unclaimedIndex; for (uint256 t = 0; t < tokens; t++) { uint256 ratId = MDR.tokenOfOwnerByIndex(msg.sender, t); if (!ratClaims[ratId]) { tokensToClaim[unclaimedIndex] = ratId; unclaimedIndex++; } } return tokensToClaim; } function _nextUnclaimedRatId() internal view returns (uint256 result) { uint256 count = MDR.balanceOf(msg.sender); for (uint256 t = 0; t < count; t++) { uint256 tokenId = MDR.tokenOfOwnerByIndex(msg.sender, t); if (!ratClaims[tokenId]) { result = tokenId; break; } } require(result > 0, "OutOfClaims"); } function _enforceClaimConditions(uint256 count) internal view { require(count > 0, "ZeroClaimCount"); require(ratClaimsReserve >= (ratClaimsCounter + count), "ClaimReserveExceeded"); } function _enforceSequentialAvailability(uint256 from, uint256 count) internal view returns (uint256[] memory) { uint256 tokens = MDR.balanceOf(msg.sender); uint256[] memory tokensToClaim = new uint256[](count); for (uint256 t = 0; t < tokens; t++) { if (MDR.tokenOfOwnerByIndex(msg.sender, t) == from) { for (uint256 f = t; f < (t + count); f++) { uint256 tokenId = MDR.tokenOfOwnerByIndex(msg.sender, f); require(!ratClaims[tokenId], "ImpossibleClaim"); tokensToClaim[f - t] = tokenId; } } } return tokensToClaim; } modifier whenUriNotLocked() { require(!tokenURILocked, "TokenURILockedErr"); _; } function placeholderURI() internal view returns (string memory) { return string( abi.encodePacked( _baseTokenUri, METADATA_INFIX, PLACEHOLDER_SUFFIX ) ); } function indexedTokenURI(uint256 tokenId) internal view returns (string memory) { return string( abi.encodePacked( _baseTokenUri, METADATA_INFIX, tokenId.toString(), ".json" ) ); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.7; interface IMillionDollarRat { function ownerOf(uint256 tokenId) external view returns (address); function balanceOf(address owner) external view returns (uint256); function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId); }
// SPDX-License-Identifier: MIT 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); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _setOwner(_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 { _setOwner(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"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../ERC721.sol"; import "./IERC721Enumerable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @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` cannot be the zero address. * - `to` cannot be the zero address. * * 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 override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @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: balance query for the zero address"); 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 overriden 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 { require(operator != _msgSender(), "ERC721: 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 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 || getApproved(tokenId) == spender || isApprovedForAll(owner, 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); } /** * @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); } /** * @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 of token that is not own"); 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); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), 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.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 {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @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; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @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; } }
// SPDX-License-Identifier: MIT 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); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @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); }
// SPDX-License-Identifier: MIT 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); }
// SPDX-License-Identifier: MIT 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); }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
Contract Security Audit
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[{"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":"uint256","name":"reserve","type":"uint256"}],"name":"ClaimsReserveUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"ratId","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"goodGuyId","type":"uint256"}],"name":"GoodGuyClaimed","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":"uint256","name":"startingIndex","type":"uint256"}],"name":"Reveal","type":"event"},{"anonymous":false,"inputs":[],"name":"SalePaused","type":"event"},{"anonymous":false,"inputs":[],"name":"SaleStarted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"tokenUri","type":"string"}],"name":"TokenURILocked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"tokenUri","type":"string"}],"name":"TokenURISet","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"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"GG_PACK_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GG_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GG_PROVENANCE","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_GG_SUPPLY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_RAT_SUPPLY","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":[{"internalType":"uint256[]","name":"claimedRatIds","type":"uint256[]"},{"internalType":"uint256","name":"from","type":"uint256"},{"internalType":"uint256","name":"count","type":"uint256"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"countUnclaimed","outputs":[{"internalType":"uint256","name":"result","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":"listUnclaimed","outputs":[{"internalType":"uint256[]","name":"result","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockTokenURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"numberOfGGs","type":"uint256"}],"name":"mintGGs","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","na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Contract Creation Code
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