Feature Tip: Add private address tag to any address under My Name Tag !
ERC-721
Overview
Max Total Supply
6,375 SKELE
Holders
736
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
13 SKELELoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
Skelephunks
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: Unlicense // Creator: 0xYeety/YEETY.eth - Co-Founder/CTO, Virtue Labs // * ————————————————————————————————————————————————————————————————————————————————— * // | | // | SSSSS K K EEEEEE L EEEEEE PPPPP H H U U N N K K SSSSS | // | S K K E L E P P H H U U N N N K K S | // | SSSS KKKK EEE L EEE PPPPP HHHHHH U U N N N KKKK SSSS | // | S K K E L E P H H U U N N N K K S | // | SSSSS K K EEEEEE LLLLLL EEEEEE P H H UUUU N N K K SSSSS | // | | // | * AN ETHEREUM-BASED INDENTITY PLATFORM BROUGHT TO YOU BY NEUROMANTIC INDUSTRIES * | // | | // | @@@@@@@@@@@@@@@@@@@@@@@@ | // | @@@@@@@@@@@@@@@@@@@@@@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@@@@@@@@,,,,,,,,,,@@@@@@,,,,,,,@@@ | // | @@@@@@@@@@,,,,,,,,,,@@@@@@,,,,,,,@@@ | // | @@@@@@@@@@,,,,,,,,,,@@@@@@,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,@@@@@@,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,@@@@@@,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,,,,,,,,,,,@@@@@@@ | // | @@@@@@@@@@@@@@@@@@@@@@@@@@@ | // | @@@@@@@@@@@@@@@@@@@@@@@@@@@ | // | @@@@,,,,,,,,,,,,,,,,@@@@,,,@@@ | // | @@@@@@@@@@@@@@@@,,,,@@@ | // | @@@,,,,,,,,,,@@@ | // | @@@,,,,,,,,,,@@@ | // | @@@,,,,@@@ | // | @@@,,,,,,,,,,@@@ | // | | // | * ———————————————————————————————————————————————————————————————————— pragma solidity ^0.8.17; import "./ERC721Y.sol"; import "lib/openzeppelin-contracts/contracts/access/Ownable.sol"; import "lib/openzeppelin-contracts/contracts/utils/Strings.sol"; import "lib/openzeppelin-contracts/contracts/utils/cryptography/MerkleProof.sol"; import "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; import "lib/operator-filter-registry/src/DefaultOperatorFilterer.sol"; contract Skelephunks is ERC721Y, Ownable, DefaultOperatorFilterer { using Address for address; using Strings for uint256; string public PROVENANCE; bool provenanceSet; mapping(address => uint256) public numMinted; mapping(uint256 => string) private _gdToPath; /*************************************************************************/ /*** PAYMENT VARIABLES (Start) *******************************************/ address[] public payees; mapping(address => uint256) private paymentInfo; uint256 totalReceived = 0; mapping(address => uint256) amountsWithdrawn; bool canEmergencyWithdrawTokens = true; modifier onlyPayee() { _isPayee(); _; } function _isPayee() internal view virtual { require(paymentInfo[msg.sender] > 0, "not a payee"); } function isPayee(address addr) public view returns (bool) { return (paymentInfo[addr] > 0); } /*** PAYMENT VARIABLES (End) *******************************************/ /***********************************************************************/ uint256 public mintPrice = 0.033 ether; uint256 private maxPaidTokens = 10; enum MintStatus { PreMint, Phunks, AllowList, Public, PublicExtended, ReserveOnly, Finished } MintStatus public mintStatus = MintStatus.PreMint; bool public paused = false; uint256 public maxPossibleSupply = 9999; uint256 public maxMintableSupply = 6666; uint256 public numMintedRegular = 0; uint256 public maxReserveSupply = 3333; uint256 public numMintedReserve = 0; uint256 private _maxMintsPerWallet; string collectionDescription = "Skelephunks is a universal, adaptive PFP for the Ethereum community."; string collectionImg = ""; string externalLink = "https://skelephunks.com"; // mapping(uint256 => uint256) private _genderDirection; bytes32 public phunksMerkleRoot = 0x2df951fbc5be4633d24a81d65bfa4cf92133f3ada0d2a884f39955bd22444b24; uint256 public maxPhunkClaims = 105; bytes32 public merkleRoot = 0xdb815420d65ef8b0dec059847253b71b167965c78bd17b5a961dc8688ded7cfd; uint256 public maxAllowlistClaims = 1561; mapping(address => uint256) private _claimsInfo; mapping(address => uint256) private _claimTypes; function phunkClaimsMade() public view returns (uint256) { return _claimsInfo[address(0)]%(1<<128); } function allowlistClaimsMade() public view returns (uint256) { return _claimsInfo[address(0)]>>128; } function phunkListClaimed(address addr) public view returns (bool) { require(addr != address(0), "0"); return ((_claimsInfo[addr]%2) == 1); } function allowlistClaimed(address addr) public view returns (bool) { require(addr != address(0), "0"); return ((_claimsInfo[addr]>>1) == 1); } mapping(address => bool) private _reserveAuths; address public keysContract; uint256 public keyRedemptionAmt = 3; modifier onlyReserveAuth() { require(getReserveAuthStatus(msg.sender), "ra"); _; } bool private royaltySwitch = true; modifier onlyAllowedOperator(address from) virtual override { if (royaltySwitch) { if (from != msg.sender) { _checkFilterOperator(msg.sender); } } _; } modifier onlyAllowedOperatorApproval(address operator) virtual override { if (royaltySwitch) { _checkFilterOperator(operator); } _; } bool public preMintLocked = false; ////////// constructor ( string memory name_, string memory symbol_, uint256 maxMintsPerWallet_, address[] memory payees_, uint256[] memory basisPoints_ ) ERC721Y(name_, symbol_, maxPossibleSupply) { _maxMintsPerWallet = maxMintsPerWallet_; require(payees_.length == basisPoints_.length, "l"); payees = payees_; for (uint256 i = 0; i < payees_.length; i++) { paymentInfo[payees_[i]] = basisPoints_[i]; } _gdToPath[0] = "phunk/male"; _gdToPath[1] = "phunk/female"; _gdToPath[2] = "punk/male"; _gdToPath[3] = "punk/female"; } ////////// function flipPaused() public onlyOwner { paused = !paused; } function setMintStatus(MintStatus newMintStatus) public onlyOwner { require(newMintStatus != MintStatus.PreMint && mintStatus != MintStatus.Finished, "ms"); mintStatus = newMintStatus; } function preMint( address[] calldata recipients, uint256[] calldata numsToMint, uint256[] calldata gds, bool lock ) public onlyOwner { require(!preMintLocked, "pml"); for (uint256 i = 0; i < numsToMint.length; i++) { require(gds[i] < 4, "bad gad"); _mintMain(recipients[i], numsToMint[i], 0, gds[i], false); } preMintLocked = lock; } function min(uint256 x, uint256 y) private pure returns (uint256) { if (x < y) { return x; } return y; } function _mintClaimsMade(address minter) private view returns (uint256) { return _claimTypes[minter]%(1<<128); } function _otherClaimsMade(address minter) private view returns (uint256) { return _claimTypes[minter]>>128; } function totalClaimsMade(address minter) public view returns (uint256) { return _mintClaimsMade(minter) + _otherClaimsMade(minter); } function phunkClaimsRemain() public view returns (bool) { return (phunkClaimsMade() < maxPhunkClaims); } function eligibleForPhunk( address minter, bytes32[] calldata _proof ) public view returns (bool) { return ((!(phunkListClaimed(minter))) && MerkleProof.verify( _proof, phunksMerkleRoot, keccak256(abi.encodePacked(minter)) ) && phunkClaimsRemain()); } function allowlistClaimsRemain() public view returns (bool) { return (allowlistClaimsMade() < maxAllowlistClaims); } function eligibleForAllowlist( address minter, bytes32[] calldata _proof ) public view returns (bool) { return (MerkleProof.verify( _proof, merkleRoot, keccak256(abi.encodePacked(minter)) ) && allowlistClaimsRemain()); } ////////// function maxMintsInternal( address wallet, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) private view returns (uint256) { uint256 mms = maxMintableSupply; uint256 nmr = numMintedRegular; uint256 _mmpw = _maxMintsPerWallet; bool efp = eligibleForPhunk(wallet, _phunkProof); bool efal = eligibleForAllowlist(wallet, _alProof); if (mintStatus == MintStatus.PreMint) { return 0; } else if (mintStatus == MintStatus.Phunks) { return (efp ? 1 : 0); } else if (mintStatus == MintStatus.AllowList) { if (efal) { return min(_mmpw - numMinted[wallet], mms - nmr); } else if (efp) { return 1; } else { return 0; } } else if (mintStatus == MintStatus.Public) { return min(_mmpw - numMinted[wallet], mms - nmr); } else if (mintStatus == MintStatus.PublicExtended) { return (mms - nmr); } else if (mintStatus == MintStatus.ReserveOnly) { return (efal ? 1 : 0) + (efp ? 1 : 0); } return 0; } function maxMintsPerWallet( address wallet, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) public view returns (uint256) { return min(100, maxMintsInternal(wallet, _phunkProof, _alProof)); } function walletCanMint( address wallet, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) public view returns (bool) { return (maxMintsPerWallet(wallet, _phunkProof, _alProof) > 0); } function _generalGetNumFree( address wallet, uint256 quantity, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) private view returns (uint256) { uint256 toReturn; if (quantity == maxMintsPerWallet(wallet, _phunkProof, _alProof)) { toReturn = 3 - _mintClaimsMade(wallet); toReturn = min(toReturn, quantity); } else { toReturn = (eligibleForPhunk(wallet, _phunkProof) ? 1 : 0) + ((eligibleForAllowlist(wallet, _alProof) && (!(allowlistClaimed(wallet)))) ? 1 : 0); toReturn = min(toReturn, quantity); } return toReturn; } function getNumFree( address wallet, uint256 quantity, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) public view returns (uint256) { bool efp = eligibleForPhunk(wallet, _phunkProof); uint256 ggnf = _generalGetNumFree(wallet, quantity, _phunkProof, _alProof); if (mintStatus == MintStatus.PreMint) { return 0; } else if (mintStatus == MintStatus.Phunks) { return (efp ? 1 : 0); } else if (mintStatus == MintStatus.AllowList) { if (eligibleForAllowlist(wallet, _alProof)) { return ggnf; } else if (efp) { return 1; } else { return 0; } } else if (mintStatus == MintStatus.Public || mintStatus == MintStatus.PublicExtended) { return ggnf; } else if (mintStatus == MintStatus.ReserveOnly) { return maxMintsInternal(wallet, _phunkProof, _alProof); } return 0; } function getMintCost( address wallet, uint256 quantity, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) public view returns (uint256) { uint256 numFree = getNumFree(wallet, quantity, _phunkProof, _alProof); return mintPrice*(quantity - numFree); } ////////// function _mintMain(address _to, uint256 _quantity, uint256 _numFree, uint256 _gd, bool isReserve) private { require(!paused, "p"); require(_gd < 4, "v"); _mintRandom(_to, _quantity, _gd); numMinted[_to] += _quantity; if (isReserve) { numMintedReserve += _quantity; } else { numMintedRegular += _quantity - _numFree; numMintedReserve += _numFree; } if (numMintedRegular == maxMintableSupply) { mintStatus = MintStatus.ReserveOnly; } if (mintStatus == MintStatus.ReserveOnly) { if (numMintedReserve == maxReserveSupply) { mintStatus = MintStatus.Finished; } } } function mint( uint256 _quantity, uint256 genderDirection, bytes32[] calldata _phunkProof, bytes32[] calldata _alProof ) public payable { require(msg.sender == tx.origin, "no contracts fam"); uint256 numFree = getNumFree(msg.sender, _quantity, _phunkProof, _alProof); require(msg.value == mintPrice*(_quantity - numFree), "poor"); require(_quantity <= maxMintsPerWallet(msg.sender, _phunkProof, _alProof), "mmpw"); require(numMintedRegular + (_quantity - numFree) <= maxMintableSupply, "mms"); require(numMintedReserve + numFree <= maxReserveSupply, "mrs"); uint256 numFreeCopy = numFree; if (numFreeCopy > 0) { if (eligibleForPhunk(msg.sender, _phunkProof)) { _claimsInfo[msg.sender] += 1; _claimTypes[msg.sender] += 1; numFreeCopy -= 1; _claimsInfo[address(0)] += 1; } } if (numFreeCopy > 0) { if (eligibleForAllowlist(msg.sender, _alProof) && (!allowlistClaimed(msg.sender))) { _claimsInfo[msg.sender] += 2; _claimTypes[msg.sender] += 1; numFreeCopy -= 1; _claimsInfo[address(0)] += 1<<128; } } _claimTypes[msg.sender] += numFreeCopy; totalReceived += msg.value; _mintMain(msg.sender, _quantity, numFree, genderDirection, false); } function mintReserve( address _to, uint256 _quantity, uint256 genderDirection ) public onlyReserveAuth { _mintReserve(_to, _quantity, genderDirection); } function redeemKeyForSkelephunks( uint256 keyId, uint256 genderDirection ) public { require(msg.sender == tx.origin, "no contracts fam"); _mintReserve(msg.sender, keyRedemptionAmt, genderDirection); SkeleKeysProto(keysContract).redeemKey(keyId); } function _mintReserve( address _to, uint256 _quantity, uint256 genderDirection ) private { _mintMain(_to, _quantity, 0, genderDirection, true); _claimTypes[_to] += (_quantity<<128); } ////////// function setMintPrice(uint256 _mintPrice) public onlyOwner { mintPrice = _mintPrice; } function setMaxMintsPerWallet(uint256 __maxMintsPerWallet) public onlyOwner { _maxMintsPerWallet = __maxMintsPerWallet; } function setMerkleRoots( bytes32 _newPhunksMerkleRoot, bytes32 _newAllowlistMerkleRoot ) public onlyOwner { phunksMerkleRoot = _newPhunksMerkleRoot; merkleRoot = _newAllowlistMerkleRoot; } ////////// function getGenderAndDirection(uint256 tokenId) public view returns (uint256) { return gadOf(tokenId); } function setGenderAndDirection(uint256 tokenId, uint256 gender, uint256 direction) public { require(gender < 2 && direction < 2, "v"); setGAD(tokenId, direction*2 + gender); } ////////// function setKeysContract(address keysAddr) public onlyOwner { setReserveAuthStatus(keysContract, false); keysContract = keysAddr; setReserveAuthStatus(keysContract, true); } function setReserveAuthStatus(address addr, bool isAuthorized) public onlyOwner { _reserveAuths[addr] = isAuthorized; } function getReserveAuthStatus(address addr) public view returns (bool) { return _reserveAuths[addr]; } function setKeyRedemptionAmt(uint256 _newAmt) public onlyOwner { keyRedemptionAmt = _newAmt; } ////////// function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "z"); if (bytes(_basedURI).length > 0) { return string( abi.encodePacked( _basedURI, "/", _gdToPath[getGenderAndDirection(tokenId)], "/", tokenId.toString())); } else { return _preRevealURI; } } function setPreRevealURI(string memory preRevealURI_) public onlyOwner { _setPreRevealURI(preRevealURI_); } function setBasedURI(string memory basedURI_) public onlyOwner { _setBasedURI(basedURI_); } function setProvenanceHash(string memory provenanceHash) public onlyOwner { require(!provenanceSet); PROVENANCE = provenanceHash; provenanceSet = true; } ////////// function setApprovalForAll( address operator, bool approved ) public override onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } function approve( address operator, uint256 tokenId ) public override onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } function transferFrom( address from, address to, uint256 tokenId ) public override onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) public override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } ////////// function setCollectionDescription(string memory _collectionDescription) public onlyOwner { collectionDescription = _collectionDescription; } function setCollectionImg(string memory _collectionImg) public onlyOwner { collectionImg = _collectionImg; } function setExternalLink(string memory _externalLink) public onlyOwner { externalLink = _externalLink; } function contractURI() public view returns (string memory) { return string( abi.encodePacked( "data:application/json;utf8,{\"name\":\"", name(),"\",", "\"description\":\"", collectionDescription, "\",", "\"image\":\"", collectionImg, "\",", "\"external_link\":\"", externalLink, "\",", "\"seller_fee_basis_points\":666,\"fee_recipient\":\"", uint256(uint160(address(this))).toHexString(), "\"}" ) ); } function flipRoyaltySwitch() public onlyOwner { royaltySwitch = !royaltySwitch; } /*********************************************************************/ /*** PAYMENT LOGIC (Start) *******************************************/ receive() external payable { totalReceived += msg.value; } function withdraw() public onlyPayee { uint256 totalForPayee = (totalReceived/10000)*paymentInfo[msg.sender]; uint256 toWithdraw = totalForPayee - amountsWithdrawn[msg.sender]; amountsWithdrawn[msg.sender] = totalForPayee; (bool success, ) = payable(msg.sender).call{value: toWithdraw}(""); require(success, "Payment failed!"); } function emergencyWithdraw() external onlyOwner { uint256 toWithdraw = address(this).balance; (bool success, ) = payable(msg.sender).call{value: toWithdraw}(""); require(success, "Payment failed!"); } function withdrawTokens(address tokenAddress) external onlyPayee { for (uint256 i = 0; i < payees.length; i++) { IERC20(tokenAddress).transfer( payees[i], (IERC20(tokenAddress).balanceOf(address(this))/10000)*paymentInfo[payees[i]] ); } } function disableEWT() public onlyOwner { canEmergencyWithdrawTokens = false; } function emergencyWithdrawTokens(address tokenAddress) external onlyOwner { require(canEmergencyWithdrawTokens, "!ew"); IERC20(tokenAddress).transfer(msg.sender, IERC20(tokenAddress).balanceOf(address(this))); } /*** PAYMENT LOGIC (End) *******************************************/ /*******************************************************************/ } //////////////////// abstract contract ERC721Proto { function balanceOf(address owner) public view virtual returns (uint256); } ////////// abstract contract SkeleKeysProto { function redeemKey(uint256 keyId) public virtual; } ////////////////////////////////////////
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) 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`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) 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); /** * @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 // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) 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 // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "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"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or 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 { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // 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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @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] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree proofs. * * The tree and the proofs can be generated using our * https://github.com/OpenZeppelin/merkle-tree[JavaScript library]. * You will find a quickstart guide in the readme. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. * OpenZeppelin's JavaScript library generates merkle trees that are safe * against this attack out of the box. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Calldata version of {verify} * * _Available since v4.7._ */ function verifyCalldata( bytes32[] calldata proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProofCalldata(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Calldata version of {processProof} * * _Available since v4.7._ */ function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}. * * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. * * _Available since v4.7._ */ function multiProofVerify( bytes32[] memory proof, bool[] memory proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProof(proof, proofFlags, leaves) == root; } /** * @dev Calldata version of {multiProofVerify} * * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. * * _Available since v4.7._ */ function multiProofVerifyCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProofCalldata(proof, proofFlags, leaves) == root; } /** * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false * respectively. * * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer). * * _Available since v4.7._ */ function processMultiProof( bytes32[] memory proof, bool[] memory proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } /** * @dev Calldata version of {processMultiProof}. * * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. * * _Available since v4.7._ */ function processMultiProofCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { return a < b ? _efficientHash(a, b) : _efficientHash(b, a); } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) 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 // 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import {OperatorFilterer} from "./OperatorFilterer.sol"; /** * @title DefaultOperatorFilterer * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription. */ abstract contract DefaultOperatorFilterer is OperatorFilterer { address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6); constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; interface IOperatorFilterRegistry { function isOperatorAllowed(address registrant, address operator) external view returns (bool); function register(address registrant) external; function registerAndSubscribe(address registrant, address subscription) external; function registerAndCopyEntries(address registrant, address registrantToCopy) external; function unregister(address addr) external; function updateOperator(address registrant, address operator, bool filtered) external; function updateOperators(address registrant, address[] calldata operators, bool filtered) external; function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external; function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external; function subscribe(address registrant, address registrantToSubscribe) external; function unsubscribe(address registrant, bool copyExistingEntries) external; function subscriptionOf(address addr) external returns (address registrant); function subscribers(address registrant) external returns (address[] memory); function subscriberAt(address registrant, uint256 index) external returns (address); function copyEntriesOf(address registrant, address registrantToCopy) external; function isOperatorFiltered(address registrant, address operator) external returns (bool); function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool); function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool); function filteredOperators(address addr) external returns (address[] memory); function filteredCodeHashes(address addr) external returns (bytes32[] memory); function filteredOperatorAt(address registrant, uint256 index) external returns (address); function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32); function isRegistered(address addr) external returns (bool); function codeHashOf(address addr) external returns (bytes32); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol"; /** * @title OperatorFilterer * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another * registrant's entries in the OperatorFilterRegistry. * @dev This smart contract is meant to be inherited by token contracts so they can use the following: * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods. * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods. */ abstract contract OperatorFilterer { error OperatorNotAllowed(address operator); IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY = IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E); constructor(address subscriptionOrRegistrantToCopy, bool subscribe) { // If an inheriting token contract is deployed to a network without the registry deployed, the modifier // will not revert, but the contract will need to be registered with the registry once it is deployed in // order for the modifier to filter addresses. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { if (subscribe) { OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy); } else { if (subscriptionOrRegistrantToCopy != address(0)) { OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy); } else { OPERATOR_FILTER_REGISTRY.register(address(this)); } } } } modifier onlyAllowedOperator(address from) virtual { // Allow spending tokens from addresses with balance // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred // from an EOA. if (from != msg.sender) { _checkFilterOperator(msg.sender); } _; } modifier onlyAllowedOperatorApproval(address operator) virtual { _checkFilterOperator(operator); _; } function _checkFilterOperator(address operator) internal view virtual { // Check registry code length to facilitate testing in environments without a deployed registry. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) { revert OperatorNotAllowed(operator); } } } }
// SPDX-License-Identifier: Unlicense // Creator: 0xYeety/YEETY.eth - Co-Founder/CTO, Virtue Labs pragma solidity ^0.8.17; import "lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol"; import "lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol"; import "lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Metadata.sol"; import "lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Enumerable.sol"; import "lib/openzeppelin-contracts/contracts/utils/Address.sol"; import "lib/openzeppelin-contracts/contracts/utils/Context.sol"; import "lib/openzeppelin-contracts/contracts/utils/Strings.sol"; import "lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol"; contract ERC721Y is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable { using Address for address; using Strings for uint256; uint256 private currentIndex = 1; // Token name string private _name; // Token symbol string private _symbol; // Base URI string internal _basedURI; string internal _preRevealURI; mapping(uint => uint) private _availableTokens; uint256 private _numAvailableTokens; uint256 immutable _maxSupply; struct MintInfo { address minter; uint64 timeMinted; } struct TokenInfo { address owner; uint96 auxData; } mapping(uint256 => MintInfo) private _minters; // mapping(uint256 => address) private _ownerships; mapping(uint256 => TokenInfo) private _ownerships; mapping(address => uint256) private _balances; mapping(uint256 => MintInfo) private _mintOrdering; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; constructor( string memory name_, string memory symbol_, uint256 maxTokens_ ) { _name = name_; _symbol = symbol_; _maxSupply = maxTokens_; _numAvailableTokens = maxTokens_; } /** * @dev See {IERC721Enumerable-totalSupply}. **/ function totalSupply() public view override returns (uint256) { return _maxSupply - _numAvailableTokens; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view override returns (uint256) { require(index > 0, "i0"); uint256 pseudoIndex = index - 1; uint256 supply = totalSupply(); require(pseudoIndex < supply, "g"); uint256 curIndex = 0; for (uint256 i = 0; i < _maxSupply; i++) { if (_ownerships[i].owner != address(0)) { if (curIndex == pseudoIndex) { // return i; return (i + 1); } curIndex++; } } revert("u"); } /** * @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), "b"); uint256 curIndex = 0; for (uint256 i = 0; i < _maxSupply; i++) { if (_ownerships[i].owner == owner) { if (curIndex == index) { // return i; return (i + 1); } curIndex++; } } revert("u"); } /** * @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), "0"); return uint256(_balances[owner]); } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "e"); return _ownerships[tokenId - 1].owner; } function gadOf(uint256 tokenId) internal view returns (uint256) { require(_exists(tokenId), "e"); return uint256(_ownerships[tokenId - 1].auxData); } function setGAD(uint256 tokenId, uint256 newGAD) internal { require(ownerOf(tokenId) == msg.sender, "e"); _ownerships[tokenId - 1].auxData = uint96(newGAD); } /** * @dev gets the address that minted a token **/ function minterOf(uint256 tokenId) public view returns (address) { require(_exists(tokenId), "e"); return _minters[tokenId - 1].minter; } function mintedAt(uint256 tokenId) public view returns (uint64) { require(_exists(tokenId), "e"); return _minters[tokenId - 1].timeMinted; } /** * @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), "z"); if (bytes(_basedURI).length > 0) { return string(abi.encodePacked(_basedURI, "/", tokenId.toString(), ".json")); } else { return _preRevealURI; } } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `basedURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function basedURI() public view virtual returns (string memory) { return _basedURI; } /** * @dev Internal function to set the base URI for all token IDs. It is * automatically added as a prefix to the value returned in {tokenURI}, * or to the token ID if {tokenURI} is empty. */ function _setBasedURI(string memory basedURI_) internal virtual { _basedURI = basedURI_; } function preRevealURI() public view virtual returns (string memory) { return _preRevealURI; } function _setPreRevealURI(string memory preRevealURI_) internal virtual { _preRevealURI = preRevealURI_; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721Y.ownerOf(tokenId); require(to != owner, "o"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "a" ); _approve(to, tokenId, owner); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "a"); return _tokenApprovals[tokenId - 1]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), "a"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } function setApprovalForSelf(address operator, bool approved) internal { _operatorApprovals[address(this)][operator] = approved; emit ApprovalForAll(address(this), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { _transfer(from, to, tokenId); require( _checkOnERC721Received(from, to, tokenId, _data), "z" ); } /** * @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) { if (tokenId == 0) { return false; } return (_ownerships[tokenId - 1].owner != address(0)); } /******************/ function _mintIdWithoutBalanceUpdate(address to, uint256 tokenId, uint256 gad) private { _ownerships[tokenId].owner = to; _ownerships[tokenId].auxData = uint96(gad); _minters[tokenId].minter = to; _minters[tokenId].timeMinted = uint64(block.timestamp); emit Transfer(address(0), to, tokenId + 1); } function _mintRandom(address to, uint _quantity, uint256 gad) internal virtual returns (uint256[] memory) { require(to != address(0), "0"); require(_quantity > 0, "1"); uint256[] memory toReturn = new uint256[](_quantity); uint updatedNumAvailableTokens = _numAvailableTokens; uint256 randomNum; for (uint256 i = 0; i < _quantity; i++) { // Do this ++ unchecked? uint256 modPos = i%16; if (modPos == 0) { randomNum = getRandomAvailableTokenId(to, updatedNumAvailableTokens); } uint256 randomIndex = (randomNum>>(modPos*16)) % updatedNumAvailableTokens; uint256 tokenId = getAvailableTokenAtIndex(randomIndex, updatedNumAvailableTokens); _mintIdWithoutBalanceUpdate(to, tokenId, gad); toReturn[i] = (tokenId + 1); updatedNumAvailableTokens--; } _numAvailableTokens = updatedNumAvailableTokens; _balances[to] += _quantity; _mintOrdering[currentIndex].minter = to; _mintOrdering[currentIndex].timeMinted = uint64(block.timestamp); currentIndex += _quantity; return toReturn; } function getRandomAvailableTokenId( address to, uint updatedNumAvailableTokens ) internal view returns (uint256) { uint256 randomNum = uint256( keccak256( abi.encode( to, tx.gasprice, block.number, block.timestamp, block.difficulty, blockhash(block.number - 1), address(this), updatedNumAvailableTokens ) ) ); return randomNum; // uint256 randomIndex = randomNum % updatedNumAvailableTokens; // return getAvailableTokenAtIndex(randomIndex, updatedNumAvailableTokens); } // Implements https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle. Code taken from CryptoPhunksV2 function getAvailableTokenAtIndex( uint256 indexToUse, uint256 updatedNumAvailableTokens ) internal returns (uint256) { uint256 valAtIndex = _availableTokens[indexToUse]; uint256 result; if (valAtIndex == 0) { // This means the index itself is still an available token result = indexToUse; } else { // This means the index itself is not an available token, but the val at that index is. result = valAtIndex; } uint256 lastIndex = updatedNumAvailableTokens - 1; if (indexToUse != lastIndex) { // Replace the value at indexToUse, now that it's been used. // Replace it with the data from the last index in the array, since we are going to decrease the array size afterwards. uint256 lastValInArray = _availableTokens[lastIndex]; if (lastValInArray == 0) { // This means the index itself is still an available token _availableTokens[indexToUse] = lastIndex; } else { // This means the index itself is not an available token, but the val at that index is. _availableTokens[indexToUse] = lastValInArray; // Gas refund courtsey of @dievardump delete _availableTokens[lastIndex]; } } return result; } function getMintOrderInfoByIndex(uint256 index) private view returns (MintInfo memory) { if (index > totalSupply()) { return _mintOrdering[0]; } for (uint256 i = index; i > 0; i--) { if (_mintOrdering[i].minter != address(0)) { return _mintOrdering[i]; } } return _mintOrdering[0]; // revert("u"); } function getMinterByOrderIndex(uint256 index) public view returns (address) { MintInfo memory info = getMintOrderInfoByIndex(index); return info.minter; } function getMintTimeByOrderIndex(uint256 index) public view returns (uint64) { MintInfo memory info = getMintOrderInfoByIndex(index); return info.timeMinted; } /******************/ function _transfer( address from, address to, uint256 tokenId ) private { address prevOwnership = ownerOf(tokenId); bool isApprovedOrOwner = (_msgSender() == prevOwnership || getApproved(tokenId) == _msgSender() || isApprovedForAll(prevOwnership, _msgSender())); require(isApprovedOrOwner, "a"); require(prevOwnership == from, "o"); require(to != address(0), "0"); // Clear approvals from the previous owner _approve(address(0), tokenId, prevOwnership); _balances[from] -= 1; _balances[to] += 1; _ownerships[tokenId - 1].owner = to; emit Transfer(from, to, tokenId); } function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId - 1] = to; emit Approval(owner, to, tokenId); } /******************/ 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("z"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } } ////////////////////////////////////////
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Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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","type":"uint256"},{"internalType":"uint256","name":"direction","type":"uint256"}],"name":"setGenderAndDirection","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newAmt","type":"uint256"}],"name":"setKeyRedemptionAmt","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"keysAddr","type":"address"}],"name":"setKeysContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"__maxMintsPerWallet","type":"uint256"}],"name":"setMaxMintsPerWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_newPhunksMerkleRoot","type":"bytes32"},{"internalType":"bytes32","name":"_newAllowlistMerkleRoot","type":"bytes32"}],"name":"setMerkleRoots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintPrice","type":"uint256"}],"name":"setMintPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"enum 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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : name_ (string): Skelephunks
Arg [1] : symbol_ (string): SKELE
Arg [2] : maxMintsPerWallet_ (uint256): 13
Arg [3] : payees_ (address[]): 0x1088a6585F9a1E2a47933c53C96A1832f25536c9,0xd1F4E12D074b4ECBbE0ce6626da2E7d317e6c2D6,0x236E5fc476D2f944CE441c50fAF158a0a55fed04,0xE042054Bb645893914C7C11Ec6d54cA8797ee33B,0xbAf53d5A52bE22497393Fb94Ee8B8fd5576217E4,0x898360D33c9200329F387c93354B25E969083bdC,0x5E86777DFA4393A29f8D0C7308B0e6E9F991A0b0
Arg [4] : basisPoints_ (uint256[]): 4000,3300,1200,700,170,130,500
-----Encoded View---------------
25 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 000000000000000000000000000000000000000000000000000000000000000d
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000220
Arg [5] : 000000000000000000000000000000000000000000000000000000000000000b
Arg [6] : 536b656c657068756e6b73000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [8] : 534b454c45000000000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [10] : 0000000000000000000000001088a6585f9a1e2a47933c53c96a1832f25536c9
Arg [11] : 000000000000000000000000d1f4e12d074b4ecbbe0ce6626da2e7d317e6c2d6
Arg [12] : 000000000000000000000000236e5fc476d2f944ce441c50faf158a0a55fed04
Arg [13] : 000000000000000000000000e042054bb645893914c7c11ec6d54ca8797ee33b
Arg [14] : 000000000000000000000000baf53d5a52be22497393fb94ee8b8fd5576217e4
Arg [15] : 000000000000000000000000898360d33c9200329f387c93354b25e969083bdc
Arg [16] : 0000000000000000000000005e86777dfa4393a29f8d0c7308b0e6e9f991a0b0
Arg [17] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [18] : 0000000000000000000000000000000000000000000000000000000000000fa0
Arg [19] : 0000000000000000000000000000000000000000000000000000000000000ce4
Arg [20] : 00000000000000000000000000000000000000000000000000000000000004b0
Arg [21] : 00000000000000000000000000000000000000000000000000000000000002bc
Arg [22] : 00000000000000000000000000000000000000000000000000000000000000aa
Arg [23] : 0000000000000000000000000000000000000000000000000000000000000082
Arg [24] : 00000000000000000000000000000000000000000000000000000000000001f4
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