ERC-721
Overview
Max Total Supply
398 TARDS
Holders
135
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
115 TARDSLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
CrypTards
Compiler Version
v0.8.7+commit.e28d00a7
Optimization Enabled:
Yes with 50 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
/*** * ██████╗██████╗ ██╗ ██╗██████╗ * ██╔════╝██╔══██╗╚██╗ ██╔╝██╔══██╗ * ██║ ██████╔╝ ╚████╔╝ ██████╔╝█████╗ * ██║ ██╔══██╗ ╚██╔╝ ██╔═══╝ ╚════╝ * ╚██████╗██║ ██║ ██║ ██║ * ╚═════╝╚═╝ ╚═╝ ╚═╝ ╚═╝ * * ████████╗ █████╗ ██████╗ ██████╗ ███████╗ * ╚══██╔══╝██╔══██╗██╔══██╗██╔══██╗██╔════╝ * ██║ ███████║██████╔╝██║ ██║███████╗ * ██║ ██╔══██║██╔══██╗██║ ██║╚════██║ * ██║ ██║ ██║██║ ██║██████╔╝███████║ * ╚═╝ ╚═╝ ╚═╝╚═╝ ╚═╝╚═════╝ ╚══════╝ * * A G & M Mints project! * Written by MaxflowO2, Senior Developer of G & M Mints * Get ahold of us on Discord, https://discord.gg/njynqxEU49 * Follow me on https://github.com/MaxflowO2 * email: [email protected] * * Project-name: cryp-tards * Network-Deployment: Ethereum (chain ID 1) * Website: https://www.CrypTards.com/ * */ // SPDX-License-Identifier: MIT pragma solidity 0.8.7; /*** * ██╗███╗ ███╗██████╗ ██████╗ ██████╗ ████████╗███████╗ * ██║████╗ ████║██╔══██╗██╔═══██╗██╔══██╗╚══██╔══╝██╔════╝ * ██║██╔████╔██║██████╔╝██║ ██║██████╔╝ ██║ ███████╗ * ██║██║╚██╔╝██║██╔═══╝ ██║ ██║██╔══██╗ ██║ ╚════██║ * ██║██║ ╚═╝ ██║██║ ╚██████╔╝██║ ██║ ██║ ███████║ * ╚═╝╚═╝ ╚═╝╚═╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝ */ import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/utils/introspection/ERC165Storage.sol"; import "./IERC2981.sol"; contract CrypTards is ERC721, ERC721Enumerable, ERC721URIStorage, Ownable, IERC2981, ERC165Storage { /*** * ██████╗ ██╗ ██████╗ ██████╗ █████╗ ██╗ ███████╗ * ██╔════╝ ██║ ██╔═══██╗██╔══██╗██╔══██╗██║ ██╔════╝ * ██║ ███╗██║ ██║ ██║██████╔╝███████║██║ ███████╗ * ██║ ██║██║ ██║ ██║██╔══██╗██╔══██║██║ ╚════██║ * ╚██████╔╝███████╗╚██████╔╝██████╔╝██║ ██║███████╗███████║ * ╚═════╝ ╚══════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝╚══════╝╚══════╝ */ uint256 public tokenCounter; uint256 public mintFee; uint256 public maxMint; uint256 public royaltyFee; uint256 public teamMintCount; uint256 public teamMintMax; uint256 public whiteListEnd; address public royaltyAddress; address public devAddress; address private gandmPaymentOne; address private gandmPaymentTwo; address private gandmPaymentThree; address private gandmPaymentFour; address private crypTardsOne; address private crypTardsTwo; bool public enableMinter; bool public enableWhiteList; string private directory; mapping (address => bool) public isWhiteList; event NewMaxMintCount(uint256 newMaxMint); event NewRoyaltyFee(uint256 newPercentage); event NewRoyaltyAddress(address newRoyaltyAddress); event NewMintFee(uint256 newMintFee); event NewWhitelistCount(uint256 newWhiteListEnd); event MinterStatusUpdate(bool newEnableMinter); event MinterStatusWhitelist(bool newEnableWhitesale); event NewTeamMintQuantity(uint256 newTeamMintMax); event NewTeamMint(uint256 newID, uint256 TeamMintCount); event DevUpdateDirectory(string newDirectory); event DevUpdateTokenURI(uint256 ID, string newTokenURI); event DevAddressChanged(address newDevAddress); event WhitelistChange(address whiteListAddy, bool update); /*** * ███████╗██████╗ ██████╗ ██╗ ██████╗ ███████╗ * ██╔════╝██╔══██╗██╔════╝ ███║██╔════╝ ██╔════╝ * █████╗ ██████╔╝██║ ╚██║███████╗ ███████╗ * ██╔══╝ ██╔══██╗██║ ██║██╔═══██╗╚════██║ * ███████╗██║ ██║╚██████╗ ██║╚██████╔╝███████║ * ╚══════╝╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═════╝ ╚══════╝ * Do not modify, do not edit, period */ bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd; bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f; bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63; bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a; constructor() ERC721("CrypTards", "TARDS") { // init of all variables tokenCounter = 0; mintFee = 69 * 10**15; // .069 ETH maxMint = 10000; // Total Amount royaltyFee = 5; // as a percentage teamMintCount = 0; teamMintMax = 50; whiteListEnd = 200; royaltyAddress = 0xC1C857631a1A0E3f55AC183E8AbF8209b60DBff9; devAddress = msg.sender; gandmPaymentOne = 0x4CE69fd760AD0c07490178f9a47863Dc0358cCCD; gandmPaymentTwo = 0x78Da8DE0d89cF141a931E32f1f903E75646014f9; gandmPaymentThree = 0x9307CAA51A02177C26D666E628A156A5bD8931bb; gandmPaymentFour = 0xfaFf57D52717eE9b886859679B371cC3046f2E9F; crypTardsOne = 0x3C2d2104A7A660868D7a853f7961E12593a75d46; crypTardsTwo = 0x9EB6d7624243947143C0fE4dFCC2DEBacEc6A17E; enableMinter = false; enableWhiteList = false; directory = "QmZ4eEo9dEMFE6wg6EmLT5p1epBATJzX8AnXNBAmpXtTrR/"; // ECR165 Interfaces Supported // ERC721 interface _registerInterface(_INTERFACE_ID_ERC721); _registerInterface(_INTERFACE_ID_ERC721_METADATA); _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE); // Royalties interface _registerInterface(_INTERFACE_ID_ERC2981); } /*** * ██████╗██╗ ██╗███████╗████████╗ ██████╗ ███╗ ███╗ * ██╔════╝██║ ██║██╔════╝╚══██╔══╝██╔═══██╗████╗ ████║ * ██║ ██║ ██║███████╗ ██║ ██║ ██║██╔████╔██║ * ██║ ██║ ██║╚════██║ ██║ ██║ ██║██║╚██╔╝██║ * ╚██████╗╚██████╔╝███████║ ██║ ╚██████╔╝██║ ╚═╝ ██║ * ╚═════╝ ╚═════╝ ╚══════╝ ╚═╝ ╚═════╝ ╚═╝ ╚═╝ */ function addWhitelistBatch(address [] memory _addresses) public onlyOwner { for (uint i = 0; i < _addresses.length; i++) { isWhiteList[_addresses[i]] = true; emit WhitelistChange(_addresses[i], isWhiteList[_addresses[i]]); } } function addWhitelist(address _address) public onlyOwner { isWhiteList[_address] = true; emit WhitelistChange(_address, isWhiteList[_address]); } function disableMinting() public onlyOwner { enableMinter = false; emit MinterStatusUpdate(enableMinter); } function disableWhitelist() public onlyOwner { enableWhiteList = false; emit MinterStatusWhitelist(enableWhiteList); whiteListEnd = 0; emit NewWhitelistCount(whiteListEnd); } function enableMinting() public onlyOwner { enableMinter = true; emit MinterStatusUpdate(enableMinter); enableWhiteList = true; emit MinterStatusWhitelist(enableWhiteList); } function enableWhitelist() public onlyOwner { enableWhiteList = true; emit MinterStatusWhitelist(enableWhiteList); } function removeWhitelistBatch(address [] memory _addresses) public onlyOwner { for (uint i = 0; i < _addresses.length; i++) { isWhiteList[_addresses[i]] = false; emit WhitelistChange(_addresses[i], isWhiteList[_addresses[i]]); } } function removeWhitelist(address _address) public onlyOwner { isWhiteList[_address] = false; emit WhitelistChange(_address, isWhiteList[_address]); } function setMaxMinted(uint256 _maxMint) public onlyOwner { maxMint = _maxMint; emit NewMaxMintCount(maxMint); } function setMintFee(uint256 _mintFee) public onlyOwner { // set to 0.001 ETH mintFee = _mintFee * 10**15; emit NewMintFee(mintFee); } function setPaymentAddresses(address _fifty, address _thirty) public onlyOwner { crypTardsOne = _fifty; crypTardsTwo = _thirty; } function setRoyaltyAddress(address _address) public onlyOwner { royaltyAddress = _address; emit NewRoyaltyAddress(royaltyAddress); } function setRoyaltyPercentage(uint256 _percentage) public onlyOwner { royaltyFee = _percentage; emit NewRoyaltyFee(royaltyFee); } function setTeamMintMaximum(uint256 _number) public onlyOwner { teamMintMax = _number; emit NewTeamMintQuantity(teamMintMax); } function setWhitelistEnd(uint256 _count) public onlyOwner { whiteListEnd = _count; emit NewWhitelistCount(whiteListEnd); } function _baseURI() internal view override returns (string memory) { string memory ipfs = "https://ipfs.io/ipfs/"; return string(abi.encodePacked(ipfs, directory)); } function publicMint() public payable { if(enableWhiteList) { require(isWhiteList[msg.sender]); require(enableMinter); require(msg.value == mintFee); require(tokenCounter < maxMint); paymentSplitter(mintFee); _mint(msg.sender, tokenCounter); _setTokenURI(tokenCounter, _endOfURI(tokenCounter)); tokenCounter++; if(tokenCounter >= whiteListEnd) { enableWhiteList = false; emit MinterStatusWhitelist(enableWhiteList); } } else { require(enableMinter); require(msg.value == mintFee); require(tokenCounter < maxMint); paymentSplitter(mintFee); _mint(msg.sender, tokenCounter); _setTokenURI(tokenCounter, _endOfURI(tokenCounter)); tokenCounter++; } } function teamMint(address _address) public onlyOwner { require(enableMinter); require(tokenCounter >= whiteListEnd); require(teamMintCount < teamMintMax); require(tokenCounter < maxMint); _mint(_address, tokenCounter); _setTokenURI(tokenCounter, _endOfURI(tokenCounter)); uint256 theID = tokenCounter; tokenCounter++; teamMintCount++; emit NewTeamMint(theID, teamMintCount); } // Function to receive Ether. msg.data must be empty receive() external payable {} // Fallback function is called when msg.data is not empty fallback() external payable {} function getBalance() external view returns (uint) { return address(this).balance; } // Payment splitter function paymentSplitter(uint256 _amount) internal { uint256 Half = _amount / 2; // 50% uint256 Thirty = _amount * 3 / 10; // 30% uint256 GandMMints = _amount / 20; // 5% - each payable(gandmPaymentOne).transfer(GandMMints); payable(gandmPaymentTwo).transfer(GandMMints); payable(gandmPaymentThree).transfer(GandMMints); payable(gandmPaymentFour).transfer(GandMMints); payable(crypTardsOne).transfer(Half); payable(crypTardsTwo).transfer(Thirty); } // turns uint to string function _uint2str(uint256 _i) internal pure returns (string memory str) { if (_i == 0) { return "0"; } uint256 j = _i; uint256 length; while (j != 0) { length++; j /= 10; } bytes memory bstr = new bytes(length); uint256 k = length; j = _i; while (j != 0) { bstr[--k] = bytes1(uint8(48 + j % 10)); j /= 10; } str = string(bstr); } // solidity string concatenation function _endOfURI(uint256 _i) internal pure returns (string memory jsonString) { string memory theNumber = _uint2str(_i); string memory dotJson = ".json"; jsonString = string(abi.encodePacked(theNumber, dotJson)); } /*** * ██╗███╗ ██╗████████╗███████╗██████╗ ███████╗ █████╗ ██████╗███████╗ * ██║████╗ ██║╚══██╔══╝██╔════╝██╔══██╗██╔════╝██╔══██╗██╔════╝██╔════╝ * ██║██╔██╗ ██║ ██║ █████╗ ██████╔╝█████╗ ███████║██║ █████╗ * ██║██║╚██╗██║ ██║ ██╔══╝ ██╔══██╗██╔══╝ ██╔══██║██║ ██╔══╝ * ██║██║ ╚████║ ██║ ███████╗██║ ██║██║ ██║ ██║╚██████╗███████╗ * ╚═╝╚═╝ ╚═══╝ ╚═╝ ╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝ ╚═╝ ╚═════╝╚══════╝ */ function intTokenCounter() external view returns (uint256) { return tokenCounter; } function intMaxMint() external view returns (uint256) { return maxMint; } function intMintFee() external view returns (uint256) { return mintFee; } function intEnableMinter() external view returns (bool) { return enableMinter; } /*** * ██████╗ ██╗ ██╗███████╗██████╗ ██████╗ ██╗██████╗ ███████╗███████╗ * ██╔═══██╗██║ ██║██╔════╝██╔══██╗██╔══██╗██║██╔══██╗██╔════╝██╔════╝ * ██║ ██║██║ ██║█████╗ ██████╔╝██████╔╝██║██║ ██║█████╗ ███████╗ * ██║ ██║╚██╗ ██╔╝██╔══╝ ██╔══██╗██╔══██╗██║██║ ██║██╔══╝ ╚════██║ * ╚██████╔╝ ╚████╔╝ ███████╗██║ ██║██║ ██║██║██████╔╝███████╗███████║ * ╚═════╝ ╚═══╝ ╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝╚═╝╚═════╝ ╚══════╝╚══════╝ */ function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal override(ERC721, ERC721Enumerable) { super._beforeTokenTransfer(from, to, tokenId); } function _burn(uint256 tokenId) internal override(ERC721, ERC721URIStorage) { super._burn(tokenId); } function tokenURI(uint256 tokenId) public view override(ERC721, ERC721URIStorage) returns (string memory) { return super.tokenURI(tokenId); } function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view override(IERC2981) returns (address receiver, uint256 royaltyAmount) { receiver = royaltyAddress; royaltyAmount = _salePrice*royaltyFee/100; } function supportsInterface(bytes4 interfaceId) public view override(ERC721, ERC721Enumerable, ERC165Storage, IERC165) returns (bool) { return super.supportsInterface(interfaceId); } /*** * ██████╗ ███╗ ██╗██╗ ██╗ ██╗██████╗ ███████╗██╗ ██╗ * ██╔═══██╗████╗ ██║██║ ╚██╗ ██╔╝██╔══██╗██╔════╝██║ ██║ * ██║ ██║██╔██╗ ██║██║ ╚████╔╝ ██║ ██║█████╗ ██║ ██║ * ██║ ██║██║╚██╗██║██║ ╚██╔╝ ██║ ██║██╔══╝ ╚██╗ ██╔╝ * ╚██████╔╝██║ ╚████║███████╗██║ ██████╔╝███████╗ ╚████╔╝ * ╚═════╝ ╚═╝ ╚═══╝╚══════╝╚═╝ ╚═════╝ ╚══════╝ ╚═══╝ */ // @Dev this is the modifier modifier onlyDev { require(msg.sender == devAddress); _; } // @Dev can renounce onlyDev functions, leaving onlyDev functions uncallable function RenounceDeveloper() public onlyDev { devAddress = address(0); emit DevAddressChanged(devAddress); } // @Dev can transfer onlyDev functions to another address function TransferDeveloper(address _nextDev) public onlyDev { devAddress = _nextDev; emit DevAddressChanged(devAddress); } // @Dev can set the Directory of JSONS function devSetDirectory(string memory _directory) public onlyDev { directory = _directory; emit DevUpdateDirectory(directory); } // @Dev can fix a TokenURI of a mismint function devSetTokenURI(uint256 id, string memory dotJson) public onlyDev { _setTokenURI(id, dotJson); emit DevUpdateTokenURI(id, dotJson); } // @Dev can update GandM payments function devSetPayments(address _one, address _two, address _three, address _four) public onlyDev { gandmPaymentOne = _one; gandmPaymentTwo = _two; gandmPaymentThree = _three; gandmPaymentFour = _four; } // @Dev function useful for accidental ETH transfers to contract (to user address) // wraps _user in payable to fix address -> address payable function sweepEthToAddress(address _user, uint256 _amount) public onlyDev { payable(_user).transfer(_amount); } // @Dev function useful for accidental ERC20 tokens of any type, // transferred to contract (to user address). Calls any ERC20 tokens by address, // and transfers via IERC20.transfer. function sweepAnyTokensToAddress(address _token, address _user) public onlyDev { IERC20(_token).transfer(_user, IERC20(_token).balanceOf(address(this))); } }
// 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; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount ) external returns (bool); /** * @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); }
// 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(to).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; 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; /** * @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; 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 "../ERC721.sol"; /** * @dev ERC721 token with storage based token URI management. */ abstract contract ERC721URIStorage is ERC721 { using Strings for uint256; // Optional mapping for token URIs mapping(uint256 => string) private _tokenURIs; /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721URIStorage: URI query for nonexistent token"); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = _baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). if (bytes(_tokenURI).length > 0) { return string(abi.encodePacked(base, _tokenURI)); } return super.tokenURI(tokenId); } /** * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token"); _tokenURIs[tokenId] = _tokenURI; } /** * @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 override { super._burn(tokenId); if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } } }
// 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"; /** * @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; /** * @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); } function _verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) private 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; /* * @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; /** * @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 "./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; import "./ERC165.sol"; /** * @dev Storage based implementation of the {IERC165} interface. * * Contracts may inherit from this and call {_registerInterface} to declare * their support of an interface. */ abstract contract ERC165Storage is ERC165 { /** * @dev Mapping of interface ids to whether or not it's supported. */ mapping(bytes4 => bool) private _supportedInterfaces; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return super.supportsInterface(interfaceId) || _supportedInterfaces[interfaceId]; } /** * @dev Registers the contract as an implementer of the interface defined by * `interfaceId`. Support of the actual ERC165 interface is automatic and * registering its interface id is not required. * * See {IERC165-supportsInterface}. * * Requirements: * * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`). */ function _registerInterface(bytes4 interfaceId) internal virtual { require(interfaceId != 0xffffffff, "ERC165: invalid interface id"); _supportedInterfaces[interfaceId] = true; } }
// 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); }
/*** * ███████╗██╗██████╗ ██████╗ █████╗ █████╗ ██╗ * ██╔════╝██║██╔══██╗ ╚════██╗██╔══██╗██╔══██╗███║ * █████╗ ██║██████╔╝█████╗ █████╔╝╚██████║╚█████╔╝╚██║ * ██╔══╝ ██║██╔═══╝ ╚════╝██╔═══╝ ╚═══██║██╔══██╗ ██║ * ███████╗██║██║ ███████╗ █████╔╝╚█████╔╝ ██║ * ╚══════╝╚═╝╚═╝ ╚══════╝ ╚════╝ ╚════╝ ╚═╝ * Zach Burks, James Morgan, Blaine Malone, James Seibel, * "EIP-2981: NFT Royalty Standard," * Ethereum Improvement Proposals, no. 2981, September 2020. [Online serial]. * Available: https://eips.ethereum.org/EIPS/eip-2981. */ // SPDX-License-Identifier: MIT pragma solidity 0.8.7; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; /// /// @dev Interface for the NFT Royalty Standard /// interface IERC2981 is IERC165 { /// ERC165 bytes to add to interface array - set in parent contract /// implementing this standard /// /// bytes4(keccak256("royaltyInfo(uint256,uint256)")) == 0x2a55205a /// bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a; /// _registerInterface(_INTERFACE_ID_ERC2981); /// @notice Called with the sale price to determine how much royalty // is owed and to whom. /// @param _tokenId - the NFT asset queried for royalty information /// @param _salePrice - the sale price of the NFT asset specified by _tokenId /// @return receiver - address of who should be sent the royalty payment /// @return royaltyAmount - the royalty payment amount for _salePrice function royaltyInfo( uint256 _tokenId, uint256 _salePrice ) external view returns ( address receiver, uint256 royaltyAmount ); }
{ "remappings": [], "optimizer": { "enabled": true, "runs": 50 }, "evmVersion": "london", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
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e":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxMint","type":"uint256"}],"name":"setMaxMinted","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintFee","type":"uint256"}],"name":"setMintFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_fifty","type":"address"},{"internalType":"address","name":"_thirty","type":"address"}],"name":"setPaymentAddresses","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"setRoyaltyAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_percentage","type":"uint256"}],"name":"setRoyaltyPercentage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_number","type":"uint256"}],"name":"setTeamMintMaximum","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_count","type":"uint256"}],"name":"setWhitelistEnd","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_user","type":"address"}],"name":"sweepAnyTokensToAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"sweepEthToAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"teamMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"teamMintCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"teamMintMax","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenCounter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"whiteListEnd","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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