Feature Tip: Add private address tag to any address under My Name Tag !
Overview
TokenID
418
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
MadMouse
Compiler Version
v0.8.12+commit.f00d7308
Optimization Enabled:
Yes with 1337 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
//SPDX-License-Identifier: MIT pragma solidity ^0.8.12; // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM`MMM NMM MMM MMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMMhMMMMMMM MMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMM MM-MMMMM MMMM MMMM lMMMDMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMM jMMMMl MM MMM M MMM M MMMM MMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMM MMMMMMMMM , ` M Y MM MMM BMMMMMM MMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMM MMMMMMMMMMMM IM MM l MMM X MM. MMMMMMMMMM MMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM.nlMMMMMMMMMMMMMMMMM]._ MMMMMMMMMMMMMMMNMMMMMMMMMMMMMM // MMMMMMMMMMMMMM TMMMMMMMMMMMMMMMMMM +MMMMMMMMMMMM: rMMMMMMMMN MMMMMMMMMMMMMM // MMMMMMMMMMMM MMMMMMMMMMMMMMMM MMMMMM MMMMMMMM qMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMM^ MMMb .MMMMMMMMMMMMMMMMMMM // MMMMMMMMMM MMMMMMMMMMMMMMM MM MMMMMMM MMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMM M gMMMMMMMMMMMMMMMMM // MMMMMMMMu MMMMMMMMMMMMMMM MMMMMMM .MMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMM :MMMMMMMMMMMMMMMM // MMMMMMM^ MMMMMMMMMMMMMMMl MMMMMMMM MMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMM // MMMMMMM MMMMMMMMMMMMMMMM MMMMMMMM MMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMM // MMMMMMr MMMMMMMMMMMMMMMM MMMMMMMM .MMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMM // MMMMMMM MMMMMMMMMMMMMMMMM DMMMMMMMMMM MMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMM|`MMMMMMMMMMMMMMMM q MMMMMMMMMMMMMMMMMMM MMMMMMM // MMMMMMMMMTMMMMMMMMMMMMMMM qMMMMMMMMMMMMMMMMMMgMMMMMMMMM // MMMMMMMMq MMMMMMMMMMMMMMMh jMMMMMMMMMMMMMMMMMMM nMMMMMMMM // MMMMMMMMMM MMMMMMMMMMMMMMMQ nc -MMMMMn MMMMMMMMMMMMMMMMMMMM MMMMMMMMMM // MMMMMMMMMM.MMMMMMMMMMMMMMMMMMl M1 `MMMMMMMMMMMMMMMMMMMMMMrMMMMMMMMMM // MMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMM :MMMMMMMMMM MMMMMMMMMMMM qMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMM MMMMMMX MMMMMMMMMMMMMMM uMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMM DMMMMMMMMM IMMMMMMMMMMMMMMMMMMMMMMM M Y MMMMMMMN MMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMM MMMMMM `` M MM MMM , MMMM Mv MMM MMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMM MMh Ml . M MMMM I MMMT M :M ,MMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMM MMMMMMMMt MM MMMMB m ]MMM MMMM MMMMMM MMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMM MMMMM MMM TM MM 9U .MM _MMMMM MMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMM YMMMMMMMn MMMM +MMMMMMM1`MMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM.`MMM MMM MMMMM`.MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM // MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM author: phaze MMM import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; import '@openzeppelin/contracts/utils/cryptography/ECDSA.sol'; import './lib/Ownable.sol'; import {VRFBaseMainnet as VRFBase} from './lib/VRFBase.sol'; import './Gouda.sol'; import './MadMouseMetadata.sol'; import './MadMouseStaking.sol'; error PublicSaleNotActive(); error WhitelistNotActive(); error InvalidAmount(); error ExceedsLimit(); error SignatureExceedsLimit(); error IncorrectValue(); error InvalidSignature(); error ContractCallNotAllowed(); error InvalidString(); error MaxLevelReached(); error MaxNumberReached(); error MinHoldDurationRequired(); error IncorrectHash(); error CollectionAlreadyRevealed(); error CollectionNotRevealed(); error TokenDataAlreadySet(); error MintAndStakeMinHoldDurationNotReached(); contract MadMouse is Ownable, MadMouseStaking, VRFBase { using ECDSA for bytes32; using UserDataOps for uint256; using TokenDataOps for uint256; using DNAOps for uint256; bool public publicSaleActive; uint256 constant MAX_SUPPLY = 5555; uint256 constant MAX_PER_WALLET = 20; uint256 constant price = 0.085 ether; uint256 constant PURCHASE_LIMIT = 5; uint256 constant whitelistPrice = 0.075 ether; uint256 constant WHITELIST_PURCHASE_LIMIT = 5; MadMouseMetadata public metadata; address public multiSigTreasury = 0xFB79a928C5d6c5932Ba83Aa8C7145cBDCDb9fd2E; address signerAddress = 0x3ADE0c5e35cbF136245F4e4bBf4563BD151d39D1; uint256 public totalLevel2Reached; uint256 public totalLevel3Reached; uint256 constant LEVEL_2_COST = 120 * 1e18; uint256 constant LEVEL_3_COST = 350 * 1e18; uint256 constant MAX_NUM_LEVEL_2 = 3477; uint256 constant MAX_NUM_LEVEL_3 = 1399; uint256 constant NAME_CHANGE_COST = 50 * 1e18; uint256 constant BIO_CHANGE_COST = 25 * 1e18; uint256 constant MAX_LEN_NAME = 20; uint256 constant MAX_LEN_BIO = 35; uint256 constant MINT_AND_STAKE_MIN_HOLD_DURATION = 2 days; uint256 profileUpdateMinHoldDuration = 30 days; mapping(uint256 => string) public mouseName; mapping(uint256 => string) public mouseBio; string public description; string public imagesBaseURI; string constant unrevealedURI = 'ipfs://QmW9NKUGYesTiYx5iSP1o82tn4Chq9i1yQV6DBnzznrHTH'; bool private revealed; bytes32 immutable secretHash; constructor(bytes32 secretHash_) MadMouseStaking(MAX_SUPPLY, MAX_PER_WALLET) { secretHash = secretHash_; } /* ------------- External ------------- */ // signatures will be created dynamically function mint( uint256 amount, bytes calldata signature, bool stake ) external payable noContract { if (!publicSaleActive) revert PublicSaleNotActive(); if (PURCHASE_LIMIT < amount) revert ExceedsLimit(); if (msg.value != price * amount) revert IncorrectValue(); if (!validSignature(signature, 0)) revert InvalidSignature(); _mintAndStake(msg.sender, amount, stake); } function whitelistMint( uint256 amount, uint256 limit, bytes calldata signature, bool stake ) external payable noContract { if (publicSaleActive) revert WhitelistNotActive(); if (WHITELIST_PURCHASE_LIMIT < limit) revert SignatureExceedsLimit(); if (msg.value != whitelistPrice * amount) revert IncorrectValue(); if (!validSignature(signature, limit)) revert InvalidSignature(); uint256 numMinted = _userData[msg.sender].numMinted(); if (numMinted + amount > limit) revert ExceedsLimit(); _mintAndStake(msg.sender, amount, stake); } function levelUp(uint256 tokenId) external payable { uint256 tokenData = _tokenDataOf(tokenId); address owner = tokenData.trueOwner(); if (owner != msg.sender) revert IncorrectOwner(); uint256 level = tokenData.level(); if (level > 2) revert MaxLevelReached(); if (level == 1) { if (totalLevel2Reached >= MAX_NUM_LEVEL_2) revert MaxNumberReached(); gouda.burnFrom(msg.sender, LEVEL_2_COST); ++totalLevel2Reached; } else { if (totalLevel3Reached >= MAX_NUM_LEVEL_3) revert MaxNumberReached(); gouda.burnFrom(msg.sender, LEVEL_3_COST); ++totalLevel3Reached; } uint256 newTokenData = tokenData.increaseLevel().resetOwnerCount(); if (tokenData.staked() && revealed) { uint256 userData = _claimReward(); (userData, newTokenData) = updateDataWhileStaked(userData, tokenId, tokenData, newTokenData); _userData[msg.sender] = userData; } _tokenData[tokenId] = newTokenData; } function setName(uint256 tokenId, string calldata name) external payable onlyLongtermHolder(tokenId) { if (!isValidString(name, MAX_LEN_NAME)) revert InvalidString(); gouda.burnFrom(msg.sender, NAME_CHANGE_COST); mouseName[tokenId] = name; } function setBio(uint256 tokenId, string calldata bio) external payable onlyLongtermHolder(tokenId) { if (!isValidString(bio, MAX_LEN_BIO)) revert InvalidString(); gouda.burnFrom(msg.sender, BIO_CHANGE_COST); mouseBio[tokenId] = bio; } // only to be used by owner in extreme cases when these reflect negatively on the collection // since they are automatically shown in the metadata (on OpenSea) function resetName(uint256 tokenId) external payable { address _owner = _tokenDataOf(tokenId).trueOwner(); if (_owner != msg.sender && owner() != msg.sender) revert IncorrectOwner(); delete mouseName[tokenId]; } function resetBio(uint256 tokenId) external payable { address _owner = _tokenDataOf(tokenId).trueOwner(); if (_owner != msg.sender && owner() != msg.sender) revert IncorrectOwner(); delete mouseBio[tokenId]; } /* ------------- View ------------- */ function tokenURI(uint256 tokenId) public view override returns (string memory) { if (!_exists(tokenId)) revert NonexistentToken(); if (!revealed || address(metadata) == address(0)) return unrevealedURI; return metadata.buildMouseMetadata(tokenId, this.getLevel(tokenId)); } function previewTokenURI(uint256 tokenId, uint256 level) external view returns (string memory) { if (!_exists(tokenId)) revert NonexistentToken(); if (!revealed || address(metadata) == address(0)) return unrevealedURI; return metadata.buildMouseMetadata(tokenId, level); } function getDNA(uint256 tokenId) external view onceRevealed returns (uint256) { if (!_exists(tokenId)) revert NonexistentToken(); return computeDNA(tokenId); } function getLevel(uint256 tokenId) external view returns (uint256) { return _tokenDataOf(tokenId).level(); } /* ------------- Private ------------- */ function validSignature(bytes calldata signature, uint256 limit) private view returns (bool) { bytes32 msgHash = keccak256(abi.encode(address(this), msg.sender, limit)); return msgHash.toEthSignedMessageHash().recover(signature) == signerAddress; } // not guarded for reveal function computeDNA(uint256 tokenId) private view returns (uint256) { return uint256(keccak256(abi.encodePacked(randomSeed, tokenId))); } /* ------------- Owner ------------- */ function setPublicSaleActive(bool active) external payable onlyOwner { publicSaleActive = active; } function setProfileUpdateMinHoldDuration(uint256 duration) external payable onlyOwner { profileUpdateMinHoldDuration = duration; } function giveAway(address[] calldata to) external payable onlyOwner { for (uint256 i; i < to.length; ++i) _mintAndStake(to[i], 1, false); } function setSignerAddress(address address_) external payable onlyOwner { signerAddress = address_; } function setMetadataAddress(MadMouseMetadata metadata_) external payable onlyOwner { metadata = metadata_; } function withdraw() external payable onlyOwner { uint256 balance = address(this).balance; multiSigTreasury.call{value: balance}(''); } function recoverToken(IERC20 token) external payable onlyOwner { uint256 balance = token.balanceOf(address(this)); token.transfer(msg.sender, balance); } function setDescription(string memory description_) external payable onlyOwner { description = description_; } // requires that the reveal is first done through chainlink vrf function setImagesBaseURI(string memory uri) external payable onlyOwner onceRevealed { imagesBaseURI = uri; } // extra security for reveal: // the owner sets a hash of a secret seed // once chainlink randomness fulfills, the secret is revealed and shifts the secret seed set by chainlink // Why? The final randomness should come from a trusted third party, // however devs need time to generate the collection from the metadata. // There is a time-frame in which an unfair advantage is gained after the seed is set and before the metadata is revealed. // This eliminates any possibility of the team generating an unfair seed and any unfair advantage by snipers. function reveal(string memory _imagesBaseURI, bytes32 secretSeed_) external payable onlyOwner whenRandomSeedSet { if (revealed) revert CollectionAlreadyRevealed(); if (secretHash != keccak256(abi.encode(secretSeed_))) revert IncorrectHash(); revealed = true; imagesBaseURI = _imagesBaseURI; _shiftRandomSeed(uint256(secretSeed_)); } /* ------------- Hooks ------------- */ // update role, level information when staking function _beforeStakeDataTransform( uint256 tokenId, uint256 userData, uint256 tokenData ) internal view override returns (uint256, uint256) { // assumption that mint&stake won't have revealed yet if (!tokenData.mintAndStake() && tokenData.role() == 0 && revealed) tokenData = tokenData.setRoleAndRarity(computeDNA(tokenId)); userData = userData.updateUserDataStake(tokenData); return (userData, tokenData); } function _beforeUnstakeDataTransform( uint256, uint256 userData, uint256 tokenData ) internal view override returns (uint256, uint256) { userData = userData.updateUserDataUnstake(tokenData); if (tokenData.mintAndStake() && block.timestamp - tokenData.lastTransfer() < MINT_AND_STAKE_MIN_HOLD_DURATION) revert MintAndStakeMinHoldDurationNotReached(); return (userData, tokenData); } function updateStakedTokenData(uint256[] calldata tokenIds) external payable onceRevealed { uint256 userData = _claimReward(); uint256 tokenId; uint256 tokenData; for (uint256 i; i < tokenIds.length; ++i) { tokenId = tokenIds[i]; tokenData = _tokenDataOf(tokenId); if (tokenData.trueOwner() != msg.sender) revert IncorrectOwner(); if (!tokenData.staked()) revert TokenIdUnstaked(); // only useful for staked ids if (tokenData.role() != 0) revert TokenDataAlreadySet(); (userData, tokenData) = updateDataWhileStaked(userData, tokenId, tokenData, tokenData); _tokenData[tokenId] = tokenData; } _userData[msg.sender] = userData; } // note: must be guarded by check for revealed function updateDataWhileStaked( uint256 userData, uint256 tokenId, uint256 oldTokenData, uint256 newTokenData ) private view returns (uint256, uint256) { uint256 userDataX; // add in the role and rarity data if not already uint256 tokenDataX = newTokenData.role() != 0 ? newTokenData : newTokenData.setRoleAndRarity(computeDNA(tokenId)); // update userData as if to unstake with old tokenData and stake with new tokenData userDataX = userData.updateUserDataUnstake(oldTokenData).updateUserDataStake(tokenDataX); return applySafeDataTransform(userData, newTokenData, userDataX, tokenDataX); } // simulates a token update and only returns ids != 0 if // the user gets a bonus increase upon updating staked data function shouldUpdateStakedIds(address user) external view returns (uint256[] memory) { if (!revealed) return new uint256[](0); uint256[] memory stakedIds = this.tokenIdsOf(user, 1); uint256 userData = _userData[user]; uint256 oldTotalBonus = totalBonus(user, userData); uint256 tokenData; for (uint256 i; i < stakedIds.length; ++i) { tokenData = _tokenDataOf(stakedIds[i]); if (tokenData.role() == 0) (userData, ) = updateDataWhileStaked(userData, stakedIds[i], tokenData, tokenData); else stakedIds[i] = 0; } uint256 newTotalBonus = totalBonus(user, userData); return (newTotalBonus > oldTotalBonus) ? stakedIds : new uint256[](0); } /* ------------- Modifier ------------- */ modifier onceRevealed() { if (!revealed) revert CollectionNotRevealed(); _; } modifier noContract() { if (tx.origin != msg.sender) revert ContractCallNotAllowed(); _; } modifier onlyLongtermHolder(uint256 tokenId) { uint256 tokenData = _tokenDataOf(tokenId); uint256 timeHeld = block.timestamp - tokenData.lastTransfer(); if (tokenData.trueOwner() != msg.sender) revert IncorrectOwner(); if (timeHeld < profileUpdateMinHoldDuration) revert MinHoldDurationRequired(); _; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) 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 `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); /** * @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 // OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../Strings.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } else if (error == RecoverError.InvalidSignatureV) { revert("ECDSA: invalid signature 'v' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { // Check the signature length // - case 65: r,s,v signature (standard) // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._ if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else if (signature.length == 64) { bytes32 r; bytes32 vs; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. assembly { r := mload(add(signature, 0x20)) vs := mload(add(signature, 0x40)) } return tryRecover(hash, r, vs); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } if (v != 27 && v != 28) { return (address(0), RecoverError.InvalidSignatureV); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; error CallerIsNotTheOwner(); abstract contract Ownable { address _owner; constructor() { _owner = msg.sender; } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { if (msg.sender != _owner) revert CallerIsNotTheOwner(); _; } function transferOwnership(address newOwner) external onlyOwner { _owner = newOwner; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@chainlink/contracts/src/v0.8/VRFConsumerBase.sol'; import './Ownable.sol'; error RandomSeedNotSet(); error RandomSeedAlreadySet(); contract VRFBase is VRFConsumerBase, Ownable { bytes32 private immutable keyHash; uint256 private immutable fee; uint256 public randomSeed; constructor( bytes32 keyHash_, uint256 fee_, address vrfCoordinator_, address link_ ) VRFConsumerBase(vrfCoordinator_, link_) { keyHash = keyHash_; fee = fee_; } /* ------------- Owner ------------- */ function requestRandomSeed() external payable virtual onlyOwner whenRandomSeedUnset { requestRandomness(keyHash, fee); } // this function should not be needed and is just an emergency fail-safe if // for some reason chainlink is not able to fulfill the randomness callback function forceFulfillRandomness() external payable virtual onlyOwner whenRandomSeedUnset { randomSeed = uint256(blockhash(block.number - 1)); } /* ------------- Internal ------------- */ function fulfillRandomness(bytes32, uint256 randomNumber) internal virtual override { randomSeed = randomNumber; } function _shiftRandomSeed(uint256 randomNumber) internal { randomSeed = uint256(keccak256(abi.encode(randomSeed, randomNumber))); } /* ------------- View ------------- */ function randomSeedSet() public view returns (bool) { return randomSeed > 0; } /* ------------- Modifier ------------- */ modifier whenRandomSeedSet() { if (!randomSeedSet()) revert RandomSeedNotSet(); _; } modifier whenRandomSeedUnset() { if (randomSeedSet()) revert RandomSeedAlreadySet(); _; } } // get your shit together Chainlink... contract VRFBaseMainnet is VRFBase( 0xAA77729D3466CA35AE8D28B3BBAC7CC36A5031EFDC430821C02BC31A238AF445, 2 * 1e18, 0xf0d54349aDdcf704F77AE15b96510dEA15cb7952, 0x514910771AF9Ca656af840dff83E8264EcF986CA ) { } contract VRFBaseRinkeby is VRFBase( 0x2ed0feb3e7fd2022120aa84fab1945545a9f2ffc9076fd6156fa96eaff4c1311, 0.1 * 1e18, 0xb3dCcb4Cf7a26f6cf6B120Cf5A73875B7BBc655B, 0x01BE23585060835E02B77ef475b0Cc51aA1e0709 ) {} contract VRFBaseMumbai is VRFBase( 0x6e75b569a01ef56d18cab6a8e71e6600d6ce853834d4a5748b720d06f878b3a4, 0.0001 * 1e18, 0x8C7382F9D8f56b33781fE506E897a4F1e2d17255, 0x326C977E6efc84E512bB9C30f76E30c160eD06FB ) {}
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/access/AccessControl.sol'; import '@openzeppelin/contracts/token/ERC20/ERC20.sol'; contract Gouda is ERC20, AccessControl { bytes32 constant MINT_AUTHORITY = keccak256('MINT_AUTHORITY'); bytes32 constant BURN_AUTHORITY = keccak256('BURN_AUTHORITY'); bytes32 constant TREASURY = keccak256('TREASURY'); address public multiSigTreasury = 0xFB79a928C5d6c5932Ba83Aa8C7145cBDCDb9fd2E; constructor(address madmouse) ERC20('Gouda', 'GOUDA') { _setupRole(DEFAULT_ADMIN_ROLE, msg.sender); _setupRole(MINT_AUTHORITY, madmouse); _setupRole(BURN_AUTHORITY, madmouse); _setupRole(TREASURY, multiSigTreasury); _mint(multiSigTreasury, 200_000 * 1e18); } /* ------------- Restricted ------------- */ function mint(address user, uint256 amount) external onlyRole(MINT_AUTHORITY) { _mint(user, amount); } /* ------------- ERC20Burnable ------------- */ function burnFrom(address account, uint256 amount) public { if (!hasRole(BURN_AUTHORITY, msg.sender)) _spendAllowance(account, msg.sender, amount); _burn(account, amount); } }
//SPDX-License-Identifier: MIT pragma solidity ^0.8.12; import './Gouda.sol'; import './MadMouse.sol'; import './MadMouseStaking.sol'; import './lib/Base64.sol'; import './lib/MetadataEncode.sol'; import './lib/Ownable.sol'; contract MadMouseMetadata is Ownable { using Strings for uint256; using MetadataEncode for bytes; using TokenDataOps for uint256; using DNAOps for uint256; struct Mouse { string role; string rarity; string fur; string expression; string glasses; string hat; string body; string background; string makeup; string scene; } uint256 constant CLOWN = 0; uint256 constant MAGICIAN = 1; uint256 constant JUGGLER = 2; uint256 constant TRAINER = 3; uint256 constant PERFORMER = 4; /* ------------- Traits ------------- */ // ["Clown", "Magician", "Juggler", "Trainer", "Performer"] bytes constant ROLE = hex'436c6f776e004d6167696369616e004a7567676c657200547261696e657200506572666f726d6572'; // ["Common", "Rare", "Super", "Ultra"] bytes constant RARITIES = hex'436f6d6d6f6e005261726500537570657200556c747261'; // ["Ghost", "Gold", "Lava", "Panther", "Camo", "Blue-Pink", "White", "Pink", "Brown", "Dark Brown", "Green", "Grey", "Ice", "Purple", "Red"] bytes constant FUR = hex'47686f737400476f6c64004c6176610050616e746865720043616d6f00426c75652d50696e6b0057686974650050696e6b0042726f776e004461726b2042726f776e00477265656e00477265790049636500507572706c6500526564'; // ["Awkward", "Angry", "Bored", "Confused", "Grimaced", "Loving", "Laughing", "Sad", "Shy", "Stupid", "Whistling"] bytes constant EXPRESSION = hex'41776b7761726400416e67727900426f72656400436f6e6675736564004772696d61636564004c6f76696e67004c61756768696e670053616400536879005374757069640057686973746c696e67'; // ["Purple", "Green", "Blue", "Light Blue", "Red", "Yellow", "Light Green", "Pink", "Orange", "Throne", "Star Ring", "Colosseum"] bytes constant BACKGROUND = hex'507572706c6500477265656e00426c7565004c6967687420426c7565005265640059656c6c6f77004c6967687420477265656e0050696e6b004f72616e6765005468726f6e6500537461722052696e6700436f6c6f737365756d'; // ["Black", "White", "Blue", "Kimono", "Toge", "Cowboy", "Guard", "Farmer", "Napoleon", "King", "Jumper", "Sailor", "Pirate", "Mexican", "Robin Hood", "Elf", "Viking", "Vampire", "Crocodile", "Asian", "Showman", "Genie", "Barong"] bytes constant BODY = hex'426c61636b00576869746500426c7565004b696d6f6e6f00546f676500436f77626f79004775617264004661726d6572004e61706f6c656f6e004b696e67004a756d706572005361696c6f7200506972617465004d65786963616e00526f62696e20486f6f6400456c660056696b696e670056616d706972650043726f636f64696c6500417369616e0053686f776d616e0047656e6965004261726f6e67'; // ["None", "Black", "White", "Jester", "Sakat", "Laurel", "Cowboy", "Guard", "Farmer", "Napoleon", "Crown", "Helicopter", "Sailor", "Pirate", "Mexican", "Robin Hood", "Elf", "Viking", "Halo", "Crocodile", "Asian", "Showman", "Genie", "Salakot"] bytes constant HAT = hex'4e6f6e6500426c61636b005768697465004a65737465720053616b6174004c617572656c00436f77626f79004775617264004661726d6572004e61706f6c656f6e0043726f776e0048656c69636f70746572005361696c6f7200506972617465004d65786963616e00526f62696e20486f6f6400456c660056696b696e670048616c6f0043726f636f64696c6500417369616e0053686f776d616e0047656e69650053616c616b6f74'; // ["None", "Red", "Green", "Yellow", "Vyper", "Thief", "Cyber", "Rainbow", "3D", "Thug", "Gold", "Monocle", "Manga", "Black", "Ray Black", "Blue", "Purple", "Cat Mask"] bytes constant GLASSES = hex'4e6f6e650052656400477265656e0059656c6c6f77005679706572005468696566004379626572005261696e626f77003344005468756700476f6c64004d6f6e6f636c65004d616e676100426c61636b0052617920426c61636b00426c756500507572706c6500436174204d61736b'; // ["Clown 1", "Clown 2", "Clown 3", "Clown 4", "Clown 5", "Clown 6", "Clown 7", "Clown 8", "Clown 9"] bytes constant CLOWN_MAKEUP = hex'436c6f776e203100436c6f776e203200436c6f776e203300436c6f776e203400436c6f776e203500436c6f776e203600436c6f776e203700436c6f776e203800436c6f776e2039'; // ["Pie", "Balloons", "Twisted Balloons", "Jack in the Box", "Water Spray", "Puppets", "String", "Little Pierre", "Little Murphy"] bytes constant CLOWN_BODY_LEVEL_2 = hex'5069650042616c6c6f6f6e7300547769737465642042616c6c6f6f6e73004a61636b20696e2074686520426f78005761746572205370726179005075707065747300537472696e67004c6974746c6520506965727265004c6974746c65204d7572706879'; // ["Purple Wig", "Rainbow Wig", "Blue Wig", "Teal Wig", "Red Wig", "Green Wig", "Harlequin", "Black Beret", "Blue Beret"] bytes constant CLOWN_WIG_LEVEL_2 = hex'507572706c6520576967005261696e626f772057696700426c756520576967005465616c20576967005265642057696700477265656e20576967004861726c657175696e00426c61636b20426572657400426c7565204265726574'; // ["Pie Master", "Balloon Master", "Twisted Balloon Master", "Jack in the Box Master", "Rainbow Flow", "Puppet Master", "String Master", "Pierre", "Murphy"] bytes constant CLOWN_BODY_LEVEL_3 = hex'506965204d61737465720042616c6c6f6f6e204d617374657200547769737465642042616c6c6f6f6e204d6173746572004a61636b20696e2074686520426f78204d6173746572005261696e626f7720466c6f7700507570706574204d617374657200537472696e67204d617374657200506965727265004d7572706879'; // ["Blue Poster", "Up!", "Red Poster", "Dance Floor", "Red Curtains", "Puppets", "Stadium", "Paris", "New York"] bytes constant CLOWN_BACKGROUND_LEVEL_3 = hex'426c756520506f73746572005570210052656420506f737465720044616e636520466c6f6f7200526564204375727461696e730050757070657473005374616469756d005061726973004e657720596f726b'; // ["Hatter", "Card", "Wizard", "Pento", "Fortune", "Fantasy", "Majestic", "Prisoner"] bytes constant MAGICIAN_HAT = hex'48617474657200436172640057697a6172640050656e746f00466f7274756e650046616e74617379004d616a657374696300507269736f6e6572'; // ["Doves", "Cards", "Wand", "Rabbit", "Crystal", "Levitation", "Saw", "Handcuffed"] bytes constant MAGICIAN_BODY_LEVEL_2 = hex'446f7665730043617264730057616e6400526162626974004372797374616c004c657669746174696f6e005361770048616e64637566666564'; // ["Phoenix", "Card Master", "Wand Master", "Rainbow", "Snow Globe", "Levitation Master", "Grater", "Cement"] bytes constant MAGICIAN_BODY_LEVEL_3 = hex'50686f656e69780043617264204d61737465720057616e64204d6173746572005261696e626f7700536e6f7720476c6f6265004c657669746174696f6e204d6173746572004772617465720043656d656e74'; // ["Blue Curtains", "Pink Poster", "Sky", "Hills", "Snow", "Space", "Factory", "Construction Site"] bytes constant MAGICIAN_BACKGROUND_LEVEL_3 = hex'426c7565204375727461696e730050696e6b20506f7374657200536b790048696c6c7300536e6f7700537061636500466163746f727900436f6e737472756374696f6e2053697465'; // ["None", "Fairy Mouse", "Flying Key", "Owl", "Flying Pot", "Little Mouse", "Light Aura", "Book"] bytes constant MAGICIAN_SCENE_LEVEL_3 = hex'4e6f6e65004661697279204d6f75736500466c79696e67204b6579004f776c00466c79696e6720506f74004c6974746c65204d6f757365004c69676874204175726100426f6f6b'; // ["Juggling Balls", "Clubs", "Knives", "Hoops", "Spinning Plate", "Bolas", "Diabolo", "Slinky"] bytes constant JUGGLER_BODY = hex'4a7567676c696e672042616c6c7300436c756273004b6e6976657300486f6f7073005370696e6e696e6720506c61746500426f6c617300446961626f6c6f00536c696e6b79'; // ["Juggling Ball Scholar", "Club Scholar", "Knife Scholar", "Hoop Scholar", "Spinning Plate Scholar", "Bolas Scholar", "Diabolo Scholar", "Slinky Scholar"] bytes constant JUGGLER_BODY_LEVEL_2 = hex'4a7567676c696e672042616c6c205363686f6c617200436c7562205363686f6c6172004b6e696665205363686f6c617200486f6f70205363686f6c6172005370696e6e696e6720506c617465205363686f6c617200426f6c6173205363686f6c617200446961626f6c6f205363686f6c617200536c696e6b79205363686f6c6172'; // ["Juggling Ball Master", "Club Master", "Knife Master", "Hoop Master", "Spinning Plate Master", "Bolas Master", "Diabolo Master", "Slinky Master"] bytes constant JUGGLER_BODY_LEVEL_3 = hex'4a7567676c696e672042616c6c204d617374657200436c7562204d6173746572004b6e696665204d617374657200486f6f70204d6173746572005370696e6e696e6720506c617465204d617374657200426f6c6173204d617374657200446961626f6c6f204d617374657200536c696e6b79204d6173746572'; // ["Spotlight Top", "Manor", "Target", "Forest", "Spotlight Green-Pink", "Desert", "Fireworks", "Shadow"] bytes constant JUGGLER_BACKGROUND_LEVEL_3 = hex'53706f746c6967687420546f70004d616e6f720054617267657400466f726573740053706f746c6967687420477265656e2d50696e6b004465736572740046697265776f726b7300536861646f77'; // ["Gecko", "Cat", "Chimp", "Turtle", "Donkey", "Teddy Bear", "Seal", "Baby Dodo"] bytes constant TRAINER_PET = hex'4765636b6f00436174004368696d7000547572746c6500446f6e6b65790054656464792042656172005365616c004261627920446f646f'; // ["Blue Whip", "Red Hoop", "Banana", "Green Whip", "Horse Whip", "Honey", "Fish", "Blue Hoop"] bytes constant TRAINER_BODY_LEVEL_2 = hex'426c756520576869700052656420486f6f700042616e616e6100477265656e205768697000486f727365205768697000486f6e6579004669736800426c756520486f6f70'; // ["Crocodile", "Tiger", "Monkey", "Komodo", "Horse", "Bear", "Otaria", "Dodo"] bytes constant TRAINER_PET_LEVEL_2 = hex'43726f636f64696c65005469676572004d6f6e6b6579004b6f6d6f646f00486f7273650042656172004f746172696100446f646f'; // ["Light Whip", "Fire Hoop", "Bananas", "Rainbow Whip", "Uniwhip", "Bamboo", "Fish Feast", "Rainbow Hoop"] bytes constant TRAINER_BODY_LEVEL_3 = hex'4c696768742057686970004669726520486f6f700042616e616e6173005261696e626f77205768697000556e69776869700042616d626f6f0046697368204665617374005261696e626f7720486f6f70'; // ["T-Rex", "Lion", "Gorilla", "Dragon", "Unicorn", "Panda", "Walrus", "Peacock"] bytes constant TRAINER_PET_LEVEL_3 = hex'542d526578004c696f6e00476f72696c6c6100447261676f6e00556e69636f726e0050616e64610057616c72757300506561636f636b'; // ["Tent", "Red Ring", "Green Ring", "Castle", "Lake", "Bamboo", "Grey Ring", "Peacock"] bytes constant TRAINER_BACKGROUND_LEVEL_3 = hex'54656e74005265642052696e6700477265656e2052696e6700436173746c65004c616b650042616d626f6f00477265792052696e6700506561636f636b'; // ["Hula Hoop", "Rolla Bolla", "Monocycle", "Aerial Hoop", "None", "Swing", "Dumbbells", "Trampoline"] bytes constant PERFORMER_SCENE = hex'48756c6120486f6f7000526f6c6c6120426f6c6c61004d6f6e6f6379636c650041657269616c20486f6f70004e6f6e65005377696e670044756d6262656c6c73005472616d706f6c696e65'; // ["Trickster", "Rolla Bolla", "Funambulist", "Trapezist", "Pendulum Master", "Dancer", "Mr Muscle", "Trampoline"] bytes constant PERFORMER_BODY_LEVEL_2 = hex'547269636b7374657200526f6c6c6120426f6c6c610046756e616d62756c6973740054726170657a6973740050656e64756c756d204d61737465720044616e636572004d72204d7573636c65005472616d706f6c696e65'; // ["Hula Hoop Trickster", "Tower", "Funambulist", "Trapezist Twins", "None", "Tap Dance", "Dumbbell Stand", "Cody"] bytes constant PERFORMER_SCENE_LEVEL_2 = hex'48756c6120486f6f7020547269636b7374657200546f7765720046756e616d62756c6973740054726170657a697374205477696e73004e6f6e65005461702044616e63650044756d6262656c6c205374616e6400436f6479'; // ["Chairman", "Skater", "Daredevil", "Megaphone", "None", "Virtuoso", "Hercules", "Canonist"] bytes constant PERFORMER_BODY_LEVEL_3 = hex'43686169726d616e00536b617465720044617265646576696c004d65676170686f6e65004e6f6e650056697274756f736f0048657263756c65730043616e6f6e697374'; // ["Pyramid", "Skater", "Daredevil", "Firestar", "None", "Salsa", "Barbell", "Canonman"] bytes constant PERFORMER_SCENE_LEVEL_3 = hex'507972616d696400536b617465720044617265646576696c004669726573746172004e6f6e650053616c73610042617262656c6c0043616e6f6e6d616e'; // ["Red Podium", "Half-Pipe", "Blue Podium", "Dark Tent", "Mesmerized", "Stage", "Hercules Poster", "Purple Ring"] bytes constant PERFORMER_BACKGROUND_LEVEL_3 = hex'52656420506f6469756d0048616c662d5069706500426c756520506f6469756d004461726b2054656e74004d65736d6572697a65640053746167650048657263756c657320506f7374657200507572706c652052696e67'; /* ------------- Rarities ------------- */ // [9, 9, 14, 14, 14, 14, 17, 18, 21, 21, 21, 21, 21, 21, 21] uint256 constant WEIGHTS_FUR = 0x00000000000000000000000000000000001515151515151512110e0e0e0e0909; // [63, 14, 14, 14, 5, 14, 5, 5, 14, 14, 14, 14, 5, 14, 14, 14, 14, 5] uint256 constant WEIGHTS_GLASSES = 0x0000000000000000000000000000050e0e0e0e050e0e0e0e05050e050e0e0e3f; // [8, 8, 8, 15, 15, 15, 15, 15, 8, 2, 15, 15, 15, 15, 15, 15, 3, 3, 3, 15, 3, 15, 15] uint256 constant WEIGHTS_BODY = 0x0000000000000000000f0f030f0303030f0f0f0f0f0f02080f0f0f0f0f080808; // [25, 25, 25, 25, 25, 25, 25, 25, 25, 10, 11, 10] uint256 constant WEIGHTS_BACKGROUND = 0x00000000000000000000000000000000000000000a0b0a191919191919191919; // [13, 8, 8, 8, 14, 14, 14, 14, 14, 8, 3, 14, 14, 14, 14, 14, 14, 3, 3, 3, 14, 3, 14, 14] uint256 constant WEIGHTS_HAT = 0x00000000000000000e0e030e0303030e0e0e0e0e0e03080e0e0e0e0e0808080d; /* ------------- External ------------- */ MadMouse public madmouse; function setMadMouseAddress(MadMouse madmouse_) external onlyOwner { madmouse = madmouse_; } // will act as an ERC721 proxy function balanceOf(address user) external view returns (uint256) { return madmouse.numOwned(user); } function buildMouseMetadata(uint256 tokenId, uint256 level) external view returns (string memory) { return string.concat('data:application/json;base64,', Base64.encode(bytes(mouseMetadataJSON(tokenId, level)))); } /* ------------- Json ------------- */ function getMouse(uint256 dna, uint256 level) private pure returns (Mouse memory mouse) { uint256 dnaRole = dna & 0xFF; uint256 dnaFur = (dna >> 8) & 0xFF; uint256 dnaClass = (dna >> 16) & 0xFF; uint256 dnaExpression = (dna >> 24) & 0xFF; uint256 dnaGlasses = (dna >> 32) & 0xFF; uint256 dnaBody = (dna >> 40) & 0xFF; uint256 dnaBackground = (dna >> 48) & 0xFF; uint256 dnaHat = (dna >> 56) & 0xFF; uint256 dnaSpecial = (dna >> 64) & 0xFF; uint256 role = dnaRole % 5; mouse.role = ROLE.decode(role); mouse.rarity = RARITIES.decode(dna.toRarity()); mouse.fur = FUR.selectWeighted(dnaFur, WEIGHTS_FUR); mouse.expression = EXPRESSION.decode(dnaExpression % 11); mouse.glasses = GLASSES.selectWeighted(dnaGlasses, WEIGHTS_GLASSES); mouse.body = BODY.selectWeighted(dnaBody, WEIGHTS_BODY); mouse.background = BACKGROUND.selectWeighted(dnaBackground, WEIGHTS_BACKGROUND); mouse.hat = HAT.selectWeighted(dnaHat, WEIGHTS_HAT); uint256 class; if (role == CLOWN) { class = dnaClass % 9; mouse.makeup = CLOWN_MAKEUP.decode(class); if (level == 2) mouse.body = CLOWN_BODY_LEVEL_2.decode(class); if (level >= 2) { uint256 hat = dnaHat % 9; if (hat == 6) hat = class; mouse.hat = CLOWN_WIG_LEVEL_2.decode(hat); } if (level == 3) mouse.body = CLOWN_BODY_LEVEL_3.decode(class); if (level == 3) { uint256 backgroundType = dnaBackground % 9; if (backgroundType == 6) mouse.background = CLOWN_BACKGROUND_LEVEL_3.decode(class); else mouse.background = CLOWN_BACKGROUND_LEVEL_3.decode(backgroundType); } } if (role == MAGICIAN) { class = dnaClass % 8; mouse.hat = MAGICIAN_HAT.decode(class); if (level == 2) mouse.body = MAGICIAN_BODY_LEVEL_2.decode(class); if (level == 3) mouse.body = MAGICIAN_BODY_LEVEL_3.decode(class); if (level == 3) { uint256 sceneType = dnaSpecial % 8; if (class == 1 && (sceneType < 4 || 6 < sceneType)) sceneType = 4; mouse.scene = MAGICIAN_SCENE_LEVEL_3.decode(sceneType); } if (level == 3) { uint256 backgroundType = dnaBackground % 8; if (backgroundType == 6) mouse.background = MAGICIAN_BACKGROUND_LEVEL_3.decode(class); else mouse.background = MAGICIAN_BACKGROUND_LEVEL_3.decode(backgroundType); } } if (role == JUGGLER) { class = dnaClass % 8; if (level == 1) mouse.body = JUGGLER_BODY.decode(class); if (level == 2) mouse.body = JUGGLER_BODY_LEVEL_2.decode(class); if (level == 3) mouse.body = JUGGLER_BODY_LEVEL_3.decode(class); if (level == 3) { uint256 backgroundType = dnaBackground % 8; if (backgroundType == 2) mouse.background = JUGGLER_BACKGROUND_LEVEL_3.decode(class); else mouse.background = JUGGLER_BACKGROUND_LEVEL_3.decode(backgroundType); } } if (role == TRAINER) { class = dnaClass % 8; if (level == 1) mouse.scene = TRAINER_PET.decode(class); if (level == 2) mouse.body = TRAINER_BODY_LEVEL_2.decode(class); if (level == 2) mouse.scene = TRAINER_PET_LEVEL_2.decode(class); if (level == 3) mouse.body = TRAINER_BODY_LEVEL_3.decode(class); if (level == 3) mouse.scene = TRAINER_PET_LEVEL_3.decode(class); if (level == 3) { uint256 backgroundType = dnaBackground % 8; if (backgroundType == 7) mouse.background = TRAINER_BACKGROUND_LEVEL_3.decode(class); else mouse.background = TRAINER_BACKGROUND_LEVEL_3.decode(backgroundType); } } if (role == PERFORMER) { class = dnaClass % 8; if (level >= 1) { if (class == 4) mouse.body = 'Hypnotist'; else mouse.scene = PERFORMER_SCENE.decode(class); } if (level >= 2) mouse.body = PERFORMER_BODY_LEVEL_2.decode(class); if (level >= 2 && class != 4) mouse.scene = PERFORMER_SCENE_LEVEL_2.decode(class); if (level == 3) { if (class != 4) mouse.body = PERFORMER_BODY_LEVEL_3.decode(class); if (class != 4) mouse.scene = PERFORMER_SCENE_LEVEL_3.decode(class); if (class == 4) mouse.glasses = 'Hypnotist'; } if (level == 3) { uint256 backgroundType = dnaBackground % 8; if (backgroundType == 1 || backgroundType == 4 || backgroundType == 5 || backgroundType == 6) mouse.background = PERFORMER_BACKGROUND_LEVEL_3.decode(class); else mouse.background = PERFORMER_BACKGROUND_LEVEL_3.decode(backgroundType); } } } function mouseMetadataJSON(uint256 tokenId, uint256 level) private view returns (string memory) { uint256 dna = madmouse.getDNA(tokenId); bool mintAndStake = madmouse._tokenDataOf(tokenId).mintAndStake(); string memory name = madmouse.mouseName(tokenId); string memory bio = madmouse.mouseBio(tokenId); if (bytes(name).length == 0) name = string.concat('Mad Mouse #', tokenId.toString()); if (bytes(bio).length == 0) bio = madmouse.description(); string memory imageURI = string.concat( madmouse.imagesBaseURI(), ((level - 1) * 10_000 + tokenId).toString(), '.png' ); string memory baseData = string.concat( MetadataEncode.keyValueString('name', name), MetadataEncode.keyValueString('description', bio), MetadataEncode.keyValueString('image', imageURI), MetadataEncode.keyValue('id', tokenId.toString()), MetadataEncode.keyValueString('dna', dna.toHexString()) ); string memory result = string.concat( '{', baseData, MetadataEncode.keyValueString('OG', mintAndStake ? 'Staker' : ''), MetadataEncode.attributes(getAttributesList(dna, level)), '}' ); return result; } function getAttributesList(uint256 dna, uint256 level) private pure returns (string memory) { Mouse memory mouse = getMouse(dna, level); string memory attributes = string.concat( MetadataEncode.attribute('Level', level.toString()), MetadataEncode.attributeString('Role', mouse.role), MetadataEncode.attributeString('Rarity', mouse.rarity), MetadataEncode.attributeString('Background', mouse.background), MetadataEncode.attributeString('Scene', mouse.scene), MetadataEncode.attributeString('Fur', mouse.fur) ); attributes = string.concat( attributes, MetadataEncode.attributeString('Expression', mouse.expression), MetadataEncode.attributeString('Glasses', mouse.glasses), MetadataEncode.attributeString('Hat', mouse.hat), MetadataEncode.attributeString('Makeup', mouse.makeup), MetadataEncode.attributeString('Body', mouse.body, false) ); return attributes; } // function getOGStatus(uint256 ownerCount) private pure returns (string memory) { // return // ownerCount == 1 ? MetadataEncode.keyValueString('OG', 'Minter') : ownerCount == 2 // ? MetadataEncode.keyValueString('OG', 'Hodler') // : ''; // } // function getHodlerStatus(uint256 timestamp) private view returns (string memory) { // return // (block.timestamp - timestamp) > 69 days // ? MetadataEncode.keyValueString('HODLER LEVEL', 'Diamond Handed') // : ''; // } }
//SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import './Gouda.sol'; import './lib/ERC721M.sol'; import './lib/Ownable.sol'; error InvalidBoostToken(); error TransferFailed(); error BoostInEffect(); error NotSpecialGuestOwner(); error SpecialGuestIndexMustDiffer(); abstract contract MadMouseStaking is ERC721M, Ownable { using UserDataOps for uint256; event BoostActivation(address token); Gouda public gouda; uint256 constant dailyReward = 1e18; uint256 constant ROLE_BONUS_3 = 2000; uint256 constant ROLE_BONUS_5 = 3500; uint256 constant TOKEN_BONUS = 1000; uint256 constant TIME_BONUS = 1000; uint256 constant RARITY_BONUS = 1000; uint256 constant OG_BONUS = 2000; uint256 constant SPECIAL_GUEST_BONUS = 1000; uint256 immutable OG_BONUS_END; uint256 immutable LAST_GOUDA_EMISSION_DATE; uint256 constant TOKEN_BOOST_DURATION = 9 days; uint256 constant TOKEN_BOOST_COOLDOWN = 9 days; uint256 constant TIME_BONUS_STAKE_DURATION = 30 days; mapping(IERC20 => uint256) tokenBoostCosts; mapping(uint256 => IERC721) specialGuests; mapping(IERC721 => bytes4) specialGuestsNumStakedSelector; address constant burnAddress = 0x000000000000000000000000000000000000dEaD; constructor(uint256 maxSupply_, uint256 maxPerWallet_) ERC721M('MadMouseCircus', 'MMC', 1, maxSupply_, maxPerWallet_) { OG_BONUS_END = block.timestamp + 60 days; LAST_GOUDA_EMISSION_DATE = block.timestamp + 5 * 365 days; } /* ------------- External ------------- */ function burnForBoost(IERC20 token) external payable { uint256 userData = _claimReward(); uint256 boostCost = tokenBoostCosts[token]; if (boostCost == 0) revert InvalidBoostToken(); bool success = token.transferFrom(msg.sender, burnAddress, boostCost); if (!success) revert TransferFailed(); uint256 boostStart = userData.boostStart(); if (boostStart + TOKEN_BOOST_DURATION + TOKEN_BOOST_COOLDOWN > block.timestamp) revert BoostInEffect(); _userData[msg.sender] = userData.setBoostStart(block.timestamp); emit BoostActivation(address(token)); } function claimSpecialGuest(uint256 collectionIndex) external payable { uint256 userData = _claimReward(); uint256 specialGuestIndexOld = userData.specialGuestIndex(); if (collectionIndex == specialGuestIndexOld) revert SpecialGuestIndexMustDiffer(); if (collectionIndex != 0 && !hasSpecialGuest(msg.sender, collectionIndex)) revert NotSpecialGuestOwner(); _userData[msg.sender] = userData.setSpecialGuestIndex(collectionIndex); } function clearSpecialGuestData() external payable { _userData[msg.sender] = _userData[msg.sender].setSpecialGuestIndex(0); } /* ------------- Internal ------------- */ function tokenBonus(uint256 userData) private view returns (uint256) { unchecked { uint256 lastClaimed = userData.lastClaimed(); uint256 boostEnd = userData.boostStart() + TOKEN_BOOST_DURATION; if (lastClaimed > boostEnd) return 0; if (block.timestamp <= boostEnd) return TOKEN_BONUS; // follows: lastClaimed <= boostEnd < block.timestamp // user is half-way through running out of boost, calculate exact fraction, // as if claim was initiated once at end of boost and once now // bonus * (time delta spent with boost bonus) / (complete duration) return (TOKEN_BONUS * (boostEnd - lastClaimed)) / (block.timestamp - lastClaimed); } } function roleBonus(uint256 userData) private pure returns (uint256) { uint256 numRoles = userData.uniqueRoleCount(); return numRoles < 3 ? 0 : numRoles < 5 ? ROLE_BONUS_3 : ROLE_BONUS_5; } function rarityBonus(uint256 userData) private pure returns (uint256) { unchecked { uint256 numStaked = userData.numStaked(); return numStaked == 0 ? 0 : (userData.rarityPoints() * RARITY_BONUS) / numStaked; } } function OGBonus(uint256 userData) private view returns (uint256) { unchecked { uint256 count = userData.OGCount(); uint256 lastClaimed = userData.lastClaimed(); if (count == 0 || lastClaimed > OG_BONUS_END) return 0; // follows: 0 < count <= numStaked uint256 bonus = (count * OG_BONUS) / userData.numStaked(); if (block.timestamp <= OG_BONUS_END) return bonus; // follows: lastClaimed <= OG_BONUS_END < block.timestamp return (bonus * (OG_BONUS_END - lastClaimed)) / (block.timestamp - lastClaimed); } } function timeBonus(uint256 userData) private view returns (uint256) { unchecked { uint256 stakeStart = userData.stakeStart(); uint256 stakeBonusStart = stakeStart + TIME_BONUS_STAKE_DURATION; if (block.timestamp < stakeBonusStart) return 0; uint256 lastClaimed = userData.lastClaimed(); if (lastClaimed >= stakeBonusStart) return TIME_BONUS; // follows: lastClaimed < stakeBonusStart <= block.timestamp return (TIME_BONUS * (block.timestamp - stakeBonusStart)) / (block.timestamp - lastClaimed); } } function hasSpecialGuest(address user, uint256 index) public view returns (bool) { if (index == 0) return false; // first 18 addresses are hardcoded to save gas if (index < 19) { address[19] memory guests = [ 0x0000000000000000000000000000000000000000, // 0: reserved 0x4BB33f6E69fd62cf3abbcC6F1F43b94A5D572C2B, // 1: Bears Deluxe 0xbEA8123277142dE42571f1fAc045225a1D347977, // 2: DystoPunks 0x12d2D1beD91c24f878F37E66bd829Ce7197e4d14, // 3: Galactic Apes 0x0c2E57EFddbA8c768147D1fdF9176a0A6EBd5d83, // 4: Kaiju Kingz 0x6E5a65B5f9Dd7b1b08Ff212E210DCd642DE0db8B, // 5: Octohedz 0x17eD38f5F519C6ED563BE6486e629041Bed3dfbC, // 6: PXQuest Adventurer 0xdd67892E722bE69909d7c285dB572852d5F8897C, // 7: Scholarz 0x8a90CAb2b38dba80c64b7734e58Ee1dB38B8992e, // 8: Doodles 0x6F44Db5ed6b86d9cC6046D0C78B82caD9E600F6a, // 9: Digi Dragonz 0x219B8aB790dECC32444a6600971c7C3718252539, // 10: Sneaky Vampire Syndicate 0xC4a0b1E7AA137ADA8b2F911A501638088DFdD508, // 11: Uninterested Unicorns 0x9712228cEeDA1E2dDdE52Cd5100B88986d1Cb49c, // 12: Wulfz 0x56b391339615fd0e88E0D370f451fA91478Bb20F, // 13: Ethalien 0x648E8428e0104Ec7D08667866a3568a72Fe3898F, // 14: Dysto Apez 0xd2F668a8461D6761115dAF8Aeb3cDf5F40C532C6, // 15: Karafuru 0xbad6186E92002E312078b5a1dAfd5ddf63d3f731, // 16: Anonymice 0xcB4307F1c3B5556256748DDF5B86E81258990B3C, // 17: The Other Side 0x5c211B8E4f93F00E2BD68e82F4E00FbB3302b35c // 18: Global Citizen Club ]; if (IERC721(guests[index]).balanceOf(user) != 0) return true; if (index == 10) return ISVSGraveyard(guests[index]).getBuriedCount(user) != 0; else if (index == 12) return AWOO(guests[index]).getStakedAmount(user) != 0; else if (index == 16) return CheethV2(guests[index]).stakedMiceQuantity(user) != 0; } else { IERC721 collection = specialGuests[index]; if (address(collection) != address(0)) { if (collection.balanceOf(user) != 0) return true; bytes4 selector = specialGuestsNumStakedSelector[collection]; if (selector != bytes4(0)) { (bool success, bytes memory data) = address(collection).staticcall( abi.encodeWithSelector(selector, user) ); return success && abi.decode(data, (uint256)) != 0; } } } return false; } function specialGuestBonus(address user, uint256 userData) private view returns (uint256) { uint256 index = userData.specialGuestIndex(); if (!hasSpecialGuest(user, index)) return 0; return SPECIAL_GUEST_BONUS; } function _pendingReward(address user, uint256 userData) internal view override returns (uint256) { uint256 lastClaimed = userData.lastClaimed(); if (lastClaimed == 0) return 0; uint256 timestamp = min(LAST_GOUDA_EMISSION_DATE, block.timestamp); unchecked { uint256 delta = timestamp < lastClaimed ? 0 : timestamp - lastClaimed; uint256 reward = (userData.baseReward() * delta * dailyReward) / (1 days); if (reward == 0) return 0; uint256 bonus = totalBonus(user, userData); // needs to be calculated per myriad for more accuracy return (reward * (10000 + bonus)) / 10000; } } function totalBonus(address user, uint256 userData) internal view returns (uint256) { unchecked { return roleBonus(userData) + specialGuestBonus(user, userData) + rarityBonus(userData) + OGBonus(userData) + timeBonus(userData) + tokenBonus(userData); } } function _payoutReward(address user, uint256 reward) internal override { // note: less than you would receive in 10 seconds if (reward > 0.0001 ether) gouda.mint(user, reward); } /* ------------- View ------------- */ // for convenience struct StakeInfo { uint256 numStaked; uint256 roleCount; uint256 roleBonus; uint256 specialGuestBonus; uint256 tokenBoost; uint256 stakeStart; uint256 timeBonus; uint256 rarityPoints; uint256 rarityBonus; uint256 OGCount; uint256 OGBonus; uint256 totalBonus; uint256 multiplierBase; uint256 dailyRewardBase; uint256 dailyReward; uint256 pendingReward; int256 tokenBoostDelta; uint256[3] levelBalances; } // calculates momentary totalBonus for display instead of effective bonus function getUserStakeInfo(address user) external view returns (StakeInfo memory info) { unchecked { uint256 userData = _userData[user]; info.numStaked = userData.numStaked(); info.roleCount = userData.uniqueRoleCount(); info.roleBonus = roleBonus(userData) / 100; info.specialGuestBonus = specialGuestBonus(user, userData) / 100; info.tokenBoost = (block.timestamp < userData.boostStart() + TOKEN_BOOST_DURATION) ? TOKEN_BONUS / 100 : 0; info.stakeStart = userData.stakeStart(); info.timeBonus = (info.stakeStart > 0 && block.timestamp > userData.stakeStart() + TIME_BONUS_STAKE_DURATION) ? TIME_BONUS / 100 : 0; info.OGCount = userData.OGCount(); info.OGBonus = (block.timestamp > OG_BONUS_END || userData.numStaked() == 0) ? 0 : (userData.OGCount() * OG_BONUS) / userData.numStaked() / 100; info.rarityPoints = userData.rarityPoints(); info.rarityBonus = rarityBonus(userData) / 100; info.totalBonus = info.roleBonus + info.specialGuestBonus + info.tokenBoost + info.timeBonus + info.rarityBonus + info.OGBonus; info.multiplierBase = userData.baseReward(); info.dailyRewardBase = info.multiplierBase * dailyReward; info.dailyReward = (info.dailyRewardBase * (100 + info.totalBonus)) / 100; info.pendingReward = _pendingReward(user, userData); info.tokenBoostDelta = int256(TOKEN_BOOST_DURATION) - int256(block.timestamp - userData.boostStart()); info.levelBalances = userData.levelBalances(); } } /* ------------- Owner ------------- */ function setGoudaToken(Gouda gouda_) external payable onlyOwner { gouda = gouda_; } function setSpecialGuests(IERC721[] calldata collections, uint256[] calldata indices) external payable onlyOwner { for (uint256 i; i < indices.length; ++i) { uint256 index = indices[i]; require(index != 0); specialGuests[index] = collections[i]; } } function setSpecialGuestStakingSelector(IERC721 collection, bytes4 selector) external payable onlyOwner { specialGuestsNumStakedSelector[collection] = selector; } function setBoostTokens(IERC20[] calldata _boostTokens, uint256[] calldata _boostCosts) external payable onlyOwner { for (uint256 i; i < _boostTokens.length; ++i) tokenBoostCosts[_boostTokens[i]] = _boostCosts[i]; } } // Special guest's staking interfaces interface ISVSGraveyard { function getBuriedCount(address burier) external view returns (uint256); } interface AWOO { function getStakedAmount(address staker) external view returns (uint256); } interface CheethV2 { function stakedMiceQuantity(address _address) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./interfaces/LinkTokenInterface.sol"; import "./VRFRequestIDBase.sol"; /** **************************************************************************** * @notice Interface for contracts using VRF randomness * ***************************************************************************** * @dev PURPOSE * * @dev Reggie the Random Oracle (not his real job) wants to provide randomness * @dev to Vera the verifier in such a way that Vera can be sure he's not * @dev making his output up to suit himself. Reggie provides Vera a public key * @dev to which he knows the secret key. Each time Vera provides a seed to * @dev Reggie, he gives back a value which is computed completely * @dev deterministically from the seed and the secret key. * * @dev Reggie provides a proof by which Vera can verify that the output was * @dev correctly computed once Reggie tells it to her, but without that proof, * @dev the output is indistinguishable to her from a uniform random sample * @dev from the output space. * * @dev The purpose of this contract is to make it easy for unrelated contracts * @dev to talk to Vera the verifier about the work Reggie is doing, to provide * @dev simple access to a verifiable source of randomness. * ***************************************************************************** * @dev USAGE * * @dev Calling contracts must inherit from VRFConsumerBase, and can * @dev initialize VRFConsumerBase's attributes in their constructor as * @dev shown: * * @dev contract VRFConsumer { * @dev constuctor(<other arguments>, address _vrfCoordinator, address _link) * @dev VRFConsumerBase(_vrfCoordinator, _link) public { * @dev <initialization with other arguments goes here> * @dev } * @dev } * * @dev The oracle will have given you an ID for the VRF keypair they have * @dev committed to (let's call it keyHash), and have told you the minimum LINK * @dev price for VRF service. Make sure your contract has sufficient LINK, and * @dev call requestRandomness(keyHash, fee, seed), where seed is the input you * @dev want to generate randomness from. * * @dev Once the VRFCoordinator has received and validated the oracle's response * @dev to your request, it will call your contract's fulfillRandomness method. * * @dev The randomness argument to fulfillRandomness is the actual random value * @dev generated from your seed. * * @dev The requestId argument is generated from the keyHash and the seed by * @dev makeRequestId(keyHash, seed). If your contract could have concurrent * @dev requests open, you can use the requestId to track which seed is * @dev associated with which randomness. See VRFRequestIDBase.sol for more * @dev details. (See "SECURITY CONSIDERATIONS" for principles to keep in mind, * @dev if your contract could have multiple requests in flight simultaneously.) * * @dev Colliding `requestId`s are cryptographically impossible as long as seeds * @dev differ. (Which is critical to making unpredictable randomness! See the * @dev next section.) * * ***************************************************************************** * @dev SECURITY CONSIDERATIONS * * @dev A method with the ability to call your fulfillRandomness method directly * @dev could spoof a VRF response with any random value, so it's critical that * @dev it cannot be directly called by anything other than this base contract * @dev (specifically, by the VRFConsumerBase.rawFulfillRandomness method). * * @dev For your users to trust that your contract's random behavior is free * @dev from malicious interference, it's best if you can write it so that all * @dev behaviors implied by a VRF response are executed *during* your * @dev fulfillRandomness method. If your contract must store the response (or * @dev anything derived from it) and use it later, you must ensure that any * @dev user-significant behavior which depends on that stored value cannot be * @dev manipulated by a subsequent VRF request. * * @dev Similarly, both miners and the VRF oracle itself have some influence * @dev over the order in which VRF responses appear on the blockchain, so if * @dev your contract could have multiple VRF requests in flight simultaneously, * @dev you must ensure that the order in which the VRF responses arrive cannot * @dev be used to manipulate your contract's user-significant behavior. * * @dev Since the ultimate input to the VRF is mixed with the block hash of the * @dev block in which the request is made, user-provided seeds have no impact * @dev on its economic security properties. They are only included for API * @dev compatability with previous versions of this contract. * * @dev Since the block hash of the block which contains the requestRandomness * @dev call is mixed into the input to the VRF *last*, a sufficiently powerful * @dev miner could, in principle, fork the blockchain to evict the block * @dev containing the request, forcing the request to be included in a * @dev different block with a different hash, and therefore a different input * @dev to the VRF. However, such an attack would incur a substantial economic * @dev cost. This cost scales with the number of blocks the VRF oracle waits * @dev until it calls responds to a request. */ abstract contract VRFConsumerBase is VRFRequestIDBase { /** * @notice fulfillRandomness handles the VRF response. Your contract must * @notice implement it. See "SECURITY CONSIDERATIONS" above for important * @notice principles to keep in mind when implementing your fulfillRandomness * @notice method. * * @dev VRFConsumerBase expects its subcontracts to have a method with this * @dev signature, and will call it once it has verified the proof * @dev associated with the randomness. (It is triggered via a call to * @dev rawFulfillRandomness, below.) * * @param requestId The Id initially returned by requestRandomness * @param randomness the VRF output */ function fulfillRandomness(bytes32 requestId, uint256 randomness) internal virtual; /** * @dev In order to keep backwards compatibility we have kept the user * seed field around. We remove the use of it because given that the blockhash * enters later, it overrides whatever randomness the used seed provides. * Given that it adds no security, and can easily lead to misunderstandings, * we have removed it from usage and can now provide a simpler API. */ uint256 private constant USER_SEED_PLACEHOLDER = 0; /** * @notice requestRandomness initiates a request for VRF output given _seed * * @dev The fulfillRandomness method receives the output, once it's provided * @dev by the Oracle, and verified by the vrfCoordinator. * * @dev The _keyHash must already be registered with the VRFCoordinator, and * @dev the _fee must exceed the fee specified during registration of the * @dev _keyHash. * * @dev The _seed parameter is vestigial, and is kept only for API * @dev compatibility with older versions. It can't *hurt* to mix in some of * @dev your own randomness, here, but it's not necessary because the VRF * @dev oracle will mix the hash of the block containing your request into the * @dev VRF seed it ultimately uses. * * @param _keyHash ID of public key against which randomness is generated * @param _fee The amount of LINK to send with the request * * @return requestId unique ID for this request * * @dev The returned requestId can be used to distinguish responses to * @dev concurrent requests. It is passed as the first argument to * @dev fulfillRandomness. */ function requestRandomness(bytes32 _keyHash, uint256 _fee) internal returns (bytes32 requestId) { LINK.transferAndCall(vrfCoordinator, _fee, abi.encode(_keyHash, USER_SEED_PLACEHOLDER)); // This is the seed passed to VRFCoordinator. The oracle will mix this with // the hash of the block containing this request to obtain the seed/input // which is finally passed to the VRF cryptographic machinery. uint256 vRFSeed = makeVRFInputSeed(_keyHash, USER_SEED_PLACEHOLDER, address(this), nonces[_keyHash]); // nonces[_keyHash] must stay in sync with // VRFCoordinator.nonces[_keyHash][this], which was incremented by the above // successful LINK.transferAndCall (in VRFCoordinator.randomnessRequest). // This provides protection against the user repeating their input seed, // which would result in a predictable/duplicate output, if multiple such // requests appeared in the same block. nonces[_keyHash] = nonces[_keyHash] + 1; return makeRequestId(_keyHash, vRFSeed); } LinkTokenInterface internal immutable LINK; address private immutable vrfCoordinator; // Nonces for each VRF key from which randomness has been requested. // // Must stay in sync with VRFCoordinator[_keyHash][this] mapping(bytes32 => uint256) /* keyHash */ /* nonce */ private nonces; /** * @param _vrfCoordinator address of VRFCoordinator contract * @param _link address of LINK token contract * * @dev https://docs.chain.link/docs/link-token-contracts */ constructor(address _vrfCoordinator, address _link) { vrfCoordinator = _vrfCoordinator; LINK = LinkTokenInterface(_link); } // rawFulfillRandomness is called by VRFCoordinator when it receives a valid VRF // proof. rawFulfillRandomness then calls fulfillRandomness, after validating // the origin of the call function rawFulfillRandomness(bytes32 requestId, uint256 randomness) external { require(msg.sender == vrfCoordinator, "Only VRFCoordinator can fulfill"); fulfillRandomness(requestId, randomness); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface LinkTokenInterface { function allowance(address owner, address spender) external view returns (uint256 remaining); function approve(address spender, uint256 value) external returns (bool success); function balanceOf(address owner) external view returns (uint256 balance); function decimals() external view returns (uint8 decimalPlaces); function decreaseApproval(address spender, uint256 addedValue) external returns (bool success); function increaseApproval(address spender, uint256 subtractedValue) external; function name() external view returns (string memory tokenName); function symbol() external view returns (string memory tokenSymbol); function totalSupply() external view returns (uint256 totalTokensIssued); function transfer(address to, uint256 value) external returns (bool success); function transferAndCall( address to, uint256 value, bytes calldata data ) external returns (bool success); function transferFrom( address from, address to, uint256 value ) external returns (bool success); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; contract VRFRequestIDBase { /** * @notice returns the seed which is actually input to the VRF coordinator * * @dev To prevent repetition of VRF output due to repetition of the * @dev user-supplied seed, that seed is combined in a hash with the * @dev user-specific nonce, and the address of the consuming contract. The * @dev risk of repetition is mostly mitigated by inclusion of a blockhash in * @dev the final seed, but the nonce does protect against repetition in * @dev requests which are included in a single block. * * @param _userSeed VRF seed input provided by user * @param _requester Address of the requesting contract * @param _nonce User-specific nonce at the time of the request */ function makeVRFInputSeed( bytes32 _keyHash, uint256 _userSeed, address _requester, uint256 _nonce ) internal pure returns (uint256) { return uint256(keccak256(abi.encode(_keyHash, _userSeed, _requester, _nonce))); } /** * @notice Returns the id for this request * @param _keyHash The serviceAgreement ID to be used for this request * @param _vRFInputSeed The seed to be passed directly to the VRF * @return The id for this request * * @dev Note that _vRFInputSeed is not the seed passed by the consuming * @dev contract, but the one generated by makeVRFInputSeed */ function makeRequestId(bytes32 _keyHash, uint256 _vRFInputSeed) internal pure returns (bytes32) { return keccak256(abi.encodePacked(_keyHash, _vRFInputSeed)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, _allowances[owner][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = _allowances[owner][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `sender` to `recipient`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Spend `amount` form the allowance of `owner` toward `spender`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens 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 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// 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 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 v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.0; /// @title Base64 /// @author Brecht Devos - <[email protected]> /// @notice Provides functions for encoding/decoding base64 library Base64 { string internal constant TABLE_ENCODE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; bytes internal constant TABLE_DECODE = hex'0000000000000000000000000000000000000000000000000000000000000000' hex'00000000000000000000003e0000003f3435363738393a3b3c3d000000000000' hex'00000102030405060708090a0b0c0d0e0f101112131415161718190000000000' hex'001a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132330000000000'; function encode(bytes memory data) internal pure returns (string memory) { if (data.length == 0) return ''; // load the table into memory string memory table = TABLE_ENCODE; // multiply by 4/3 rounded up uint256 encodedLen = 4 * ((data.length + 2) / 3); // add some extra buffer at the end required for the writing string memory result = new string(encodedLen + 32); assembly { // set the actual output length mstore(result, encodedLen) // prepare the lookup table let tablePtr := add(table, 1) // input ptr let dataPtr := data let endPtr := add(dataPtr, mload(data)) // result ptr, jump over length let resultPtr := add(result, 32) // run over the input, 3 bytes at a time for { } lt(dataPtr, endPtr) { } { // read 3 bytes dataPtr := add(dataPtr, 3) let input := mload(dataPtr) // write 4 characters mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F)))) resultPtr := add(resultPtr, 1) mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F)))) resultPtr := add(resultPtr, 1) mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F)))) resultPtr := add(resultPtr, 1) mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F)))) resultPtr := add(resultPtr, 1) } // padding with '=' switch mod(mload(data), 3) case 1 { mstore(sub(resultPtr, 2), shl(240, 0x3d3d)) } case 2 { mstore(sub(resultPtr, 1), shl(248, 0x3d)) } } return result; } function decode(string memory _data) internal pure returns (bytes memory) { bytes memory data = bytes(_data); if (data.length == 0) return new bytes(0); require(data.length % 4 == 0, 'invalid base64 decoder input'); // load the table into memory bytes memory table = TABLE_DECODE; // every 4 characters represent 3 bytes uint256 decodedLen = (data.length / 4) * 3; // add some extra buffer at the end required for the writing bytes memory result = new bytes(decodedLen + 32); assembly { // padding with '=' let lastBytes := mload(add(data, mload(data))) if eq(and(lastBytes, 0xFF), 0x3d) { decodedLen := sub(decodedLen, 1) if eq(and(lastBytes, 0xFFFF), 0x3d3d) { decodedLen := sub(decodedLen, 1) } } // set the actual output length mstore(result, decodedLen) // prepare the lookup table let tablePtr := add(table, 1) // input ptr let dataPtr := data let endPtr := add(dataPtr, mload(data)) // result ptr, jump over length let resultPtr := add(result, 32) // run over the input, 4 characters at a time for { } lt(dataPtr, endPtr) { } { // read 4 characters dataPtr := add(dataPtr, 4) let input := mload(dataPtr) // write 3 bytes let output := add( add( shl(18, and(mload(add(tablePtr, and(shr(24, input), 0xFF))), 0xFF)), shl(12, and(mload(add(tablePtr, and(shr(16, input), 0xFF))), 0xFF)) ), add( shl(6, and(mload(add(tablePtr, and(shr(8, input), 0xFF))), 0xFF)), and(mload(add(tablePtr, and(input, 0xFF))), 0xFF) ) ) mstore(resultPtr, shl(232, output)) resultPtr := add(resultPtr, 3) } } return result; } }
//SPDX-License-Identifier: MIT pragma solidity ^0.8.12; // Warning: // This library is untested and was only written with // the specific use-case in mind of encoding traits for MadMouse. // Use at own risk. library MetadataEncode { /* ------------- Traits ------------- */ function encode(string[] memory strs) internal pure returns (bytes memory) { bytes memory a; for (uint256 i; i < strs.length; i++) { if (i < strs.length - 1) a = abi.encodePacked(a, strs[i], bytes1(0)); else a = abi.encodePacked(a, strs[i]); } return a; } function decode(bytes memory input, uint256 index) internal pure returns (string memory) { uint256 counter; uint256 start; uint256 end; for (; end < input.length; end++) { if (input[end] == 0x00) { if (counter == index) return getSlice(input, start, end); start = end + 1; counter++; } } return getSlice(input, start, end); } function getSlice( bytes memory input, uint256 start, uint256 end ) internal pure returns (string memory) { bytes memory out = new bytes(end - start); for (uint256 i = 0; i < end - start; i++) out[i] = input[i + start]; return string(out); } /* ------------- Rarities ------------- */ function selectWeighted( bytes memory traits, uint256 r, uint256 weights ) internal pure returns (string memory) { uint256 index = selectWeighted(r, weights); return decode(traits, index); } function selectWeighted(uint256 r, uint256 weights) private pure returns (uint256) { unchecked { for (uint256 i; i < 32; ++i) { r -= (weights >> (i << 3)) & 0xFF; if (r > 0xFF) return i; } } return 666666; } function encode(uint256[] memory weights) internal pure returns (bytes32) { uint256 r; uint256 sum; for (uint256 i; i < weights.length; i++) { r |= weights[i] << (i << 3); sum += weights[i]; } require(sum == 256, 'Should sum to 256'); return bytes32(r); } function decode(bytes32 code, uint256 length) internal pure returns (uint256[] memory) { uint256[] memory r = new uint256[](length); for (uint256 i; i < length; i++) r[i] = uint256(code >> (i << 3)) & 0xFF; return r; } /* ------------- Helpers ------------- */ function keyValue(string memory key, string memory value) internal pure returns (string memory) { return bytes(value).length > 0 ? string.concat('"', key, '": ', value, ', ') : ''; } function keyValueString(string memory key, string memory value) internal pure returns (string memory) { return bytes(value).length > 0 ? string.concat('"', key, '": ', '"', value, '", ') : ''; } function attributeString(string memory traitType, string memory value) internal pure returns (string memory) { return attributeString(traitType, value, true); } function attributeString( string memory traitType, string memory value, bool comma ) internal pure returns (string memory) { return bytes(value).length > 0 ? attribute(traitType, string.concat('"', value, '"'), comma) : ''; } function attribute(string memory traitType, string memory value) internal pure returns (string memory) { return attribute(traitType, value, true); } function attribute( string memory traitType, string memory value, bool comma ) internal pure returns (string memory) { return bytes(value).length > 0 ? string.concat('{"trait_type": "', traitType, '", "value": ', value, '}', comma ? ', ' : '') : ''; } function attributes(string memory attr) internal pure returns (string memory) { return string.concat('"attributes": [', attr, ']'); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC721/IERC721.sol'; import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol'; import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol'; import '@openzeppelin/contracts/utils/Address.sol'; import '@openzeppelin/contracts/utils/Strings.sol'; import './ERC721MLibrary.sol'; error IncorrectOwner(); error NonexistentToken(); error QueryForZeroAddress(); error TokenIdUnstaked(); error ExceedsStakingLimit(); error MintToZeroAddress(); error MintZeroQuantity(); error MintMaxSupplyReached(); error MintMaxWalletReached(); error CallerNotOwnerNorApproved(); error ApprovalToCaller(); error ApproveToCurrentOwner(); error TransferFromIncorrectOwner(); error TransferToNonERC721ReceiverImplementer(); error TransferToZeroAddress(); abstract contract ERC721M { using Address for address; using Strings for uint256; using UserDataOps for uint256; using TokenDataOps for uint256; event Transfer(address indexed from, address indexed to, uint256 indexed id); event Approval(address indexed owner, address indexed spender, uint256 indexed id); event ApprovalForAll(address indexed owner, address indexed operator, bool approved); string public name; string public symbol; mapping(uint256 => address) public getApproved; mapping(address => mapping(address => bool)) public isApprovedForAll; uint256 public totalSupply; uint256 immutable startingIndex; uint256 immutable collectionSize; uint256 immutable maxPerWallet; // note: hard limit of 255, otherwise overflows can happen uint256 constant stakingLimit = 100; mapping(uint256 => uint256) internal _tokenData; mapping(address => uint256) internal _userData; constructor( string memory name_, string memory symbol_, uint256 startingIndex_, uint256 collectionSize_, uint256 maxPerWallet_ ) { name = name_; symbol = symbol_; collectionSize = collectionSize_; maxPerWallet = maxPerWallet_; startingIndex = startingIndex_; } /* ------------- External ------------- */ function stake(uint256[] calldata tokenIds) external payable { uint256 userData = _claimReward(); for (uint256 i; i < tokenIds.length; ++i) userData = _stake(msg.sender, tokenIds[i], userData); _userData[msg.sender] = userData; } function unstake(uint256[] calldata tokenIds) external payable { uint256 userData = _claimReward(); for (uint256 i; i < tokenIds.length; ++i) userData = _unstake(msg.sender, tokenIds[i], userData); _userData[msg.sender] = userData; } function claimReward() external payable { _userData[msg.sender] = _claimReward(); } /* ------------- Private ------------- */ function _stake( address from, uint256 tokenId, uint256 userData ) private returns (uint256) { uint256 _numStaked = userData.numStaked(); uint256 tokenData = _tokenDataOf(tokenId); address owner = tokenData.owner(); if (_numStaked >= stakingLimit) revert ExceedsStakingLimit(); if (owner != from) revert IncorrectOwner(); delete getApproved[tokenId]; // hook, used for reading DNA, updating role balances, (uint256 userDataX, uint256 tokenDataX) = _beforeStakeDataTransform(tokenId, userData, tokenData); (userData, tokenData) = applySafeDataTransform(userData, tokenData, userDataX, tokenDataX); tokenData = tokenData.setstaked(); userData = userData.decreaseBalance(1).increaseNumStaked(1); if (_numStaked == 0) userData = userData.setStakeStart(block.timestamp); _tokenData[tokenId] = tokenData; emit Transfer(from, address(this), tokenId); return userData; } function _unstake( address to, uint256 tokenId, uint256 userData ) private returns (uint256) { uint256 tokenData = _tokenDataOf(tokenId); address owner = tokenData.trueOwner(); bool isStaked = tokenData.staked(); if (owner != to) revert IncorrectOwner(); if (!isStaked) revert TokenIdUnstaked(); (uint256 userDataX, uint256 tokenDataX) = _beforeUnstakeDataTransform(tokenId, userData, tokenData); (userData, tokenData) = applySafeDataTransform(userData, tokenData, userDataX, tokenDataX); // if mintAndStake flag is set, we need to make sure that next tokenData is set // because tokenData in this case is implicit and needs to carry over if (tokenData.mintAndStake()) { unchecked { tokenData = _ensureTokenDataSet(tokenId + 1, tokenData).unsetMintAndStake(); } } tokenData = tokenData.unsetstaked(); userData = userData.increaseBalance(1).decreaseNumStaked(1).setStakeStart(block.timestamp); _tokenData[tokenId] = tokenData; emit Transfer(address(this), to, tokenId); return userData; } /* ------------- Internal ------------- */ function _mintAndStake( address to, uint256 quantity, bool stake_ ) internal { unchecked { uint256 totalSupply_ = totalSupply; uint256 startTokenId = startingIndex + totalSupply_; uint256 userData = _userData[to]; uint256 numMinted_ = userData.numMinted(); if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); if (totalSupply_ + quantity > collectionSize) revert MintMaxSupplyReached(); if (numMinted_ + quantity > maxPerWallet && address(this).code.length != 0) revert MintMaxWalletReached(); userData = userData.increaseNumMinted(quantity); uint256 tokenData = TokenDataOps.newTokenData(to, block.timestamp, stake_); // don't have to care about next token data if only minting one // could optimize to implicitly flag last token id of batch if (quantity == 1) tokenData = tokenData.flagNextTokenDataSet(); if (stake_) { uint256 _numStaked = userData.numStaked(); userData = claimReward(userData); userData = userData.increaseNumStaked(quantity); if (_numStaked + quantity > stakingLimit) revert ExceedsStakingLimit(); if (_numStaked == 0) userData = userData.setStakeStart(block.timestamp); uint256 tokenId; for (uint256 i; i < quantity; ++i) { tokenId = startTokenId + i; (userData, tokenData) = _beforeStakeDataTransform(tokenId, userData, tokenData); emit Transfer(address(0), to, tokenId); emit Transfer(to, address(this), tokenId); } } else { userData = userData.increaseBalance(quantity); for (uint256 i; i < quantity; ++i) emit Transfer(address(0), to, startTokenId + i); } _userData[to] = userData; _tokenData[startTokenId] = tokenData; totalSupply += quantity; } } function _claimReward() internal returns (uint256) { uint256 userData = _userData[msg.sender]; return claimReward(userData); } function claimReward(uint256 userData) private returns (uint256) { uint256 reward = _pendingReward(msg.sender, userData); userData = userData.setLastClaimed(block.timestamp); _payoutReward(msg.sender, reward); return userData; } function _tokenDataOf(uint256 tokenId) public view returns (uint256) { if (!_exists(tokenId)) revert NonexistentToken(); for (uint256 curr = tokenId; ; curr--) { uint256 tokenData = _tokenData[curr]; if (tokenData != 0) return (curr == tokenId) ? tokenData : tokenData.copy(); } // unreachable return 0; } function _exists(uint256 tokenId) internal view returns (bool) { return startingIndex <= tokenId && tokenId < startingIndex + totalSupply; } function transferFrom( address from, address to, uint256 tokenId ) public { // make sure no one is misled by token transfer events if (to == address(this)) { uint256 userData = _claimReward(); _userData[msg.sender] = _stake(msg.sender, tokenId, userData); } else { uint256 tokenData = _tokenDataOf(tokenId); address owner = tokenData.owner(); bool isApprovedOrOwner = (msg.sender == owner || isApprovedForAll[owner][msg.sender] || getApproved[tokenId] == msg.sender); if (!isApprovedOrOwner) revert CallerNotOwnerNorApproved(); if (to == address(0)) revert TransferToZeroAddress(); if (owner != from) revert TransferFromIncorrectOwner(); delete getApproved[tokenId]; unchecked { _tokenData[tokenId] = _ensureTokenDataSet(tokenId + 1, tokenData) .setOwner(to) .setLastTransfer(block.timestamp) .incrementOwnerCount(); } _userData[from] = _userData[from].decreaseBalance(1); _userData[to] = _userData[to].increaseBalance(1); emit Transfer(from, to, tokenId); } } function _ensureTokenDataSet(uint256 tokenId, uint256 tokenData) private returns (uint256) { if (!tokenData.nextTokenDataSet() && _tokenData[tokenId] == 0 && _exists(tokenId)) _tokenData[tokenId] = tokenData.copy(); // make sure to not pass any token specific data in return tokenData.flagNextTokenDataSet(); } /* ------------- Virtual (hooks) ------------- */ function _beforeStakeDataTransform( uint256, // tokenId uint256 userData, uint256 tokenData ) internal view virtual returns (uint256, uint256) { return (userData, tokenData); } function _beforeUnstakeDataTransform( uint256, // tokenId uint256 userData, uint256 tokenData ) internal view virtual returns (uint256, uint256) { return (userData, tokenData); } function _pendingReward(address, uint256 userData) internal view virtual returns (uint256); function _payoutReward(address user, uint256 reward) internal virtual; /* ------------- View ------------- */ function ownerOf(uint256 tokenId) external view returns (address) { return _tokenDataOf(tokenId).owner(); } function trueOwnerOf(uint256 tokenId) external view returns (address) { return _tokenDataOf(tokenId).trueOwner(); } function balanceOf(address owner) external view returns (uint256) { if (owner == address(0)) revert QueryForZeroAddress(); return _userData[owner].balance(); } function numStaked(address user) external view returns (uint256) { return _userData[user].numStaked(); } function numOwned(address user) external view returns (uint256) { uint256 userData = _userData[user]; return userData.balance() + userData.numStaked(); } function numMinted(address user) external view returns (uint256) { return _userData[user].numMinted(); } function pendingReward(address user) external view returns (uint256) { return _pendingReward(user, _userData[user]); } // O(N) read-only functions function tokenIdsOf(address user, uint256 type_) external view returns (uint256[] memory) { unchecked { uint256 numTotal = type_ == 0 ? this.balanceOf(user) : type_ == 1 ? this.numStaked(user) : this.numOwned(user); uint256[] memory ids = new uint256[](numTotal); if (numTotal == 0) return ids; uint256 count; for (uint256 i = startingIndex; i < totalSupply + startingIndex; ++i) { uint256 tokenData = _tokenDataOf(i); if (user == tokenData.trueOwner()) { bool staked = tokenData.staked(); if ((type_ == 0 && !staked) || (type_ == 1 && staked) || type_ == 2) { ids[count++] = i; if (numTotal == count) return ids; } } } return ids; } } function totalNumStaked() external view returns (uint256) { unchecked { uint256 count; for (uint256 i = startingIndex; i < startingIndex + totalSupply; ++i) { if (_tokenDataOf(i).staked()) ++count; } return count; } } /* ------------- ERC721 ------------- */ function tokenURI(uint256 id) public view virtual returns (string memory); function supportsInterface(bytes4 interfaceId) external view virtual returns (bool) { return interfaceId == 0x01ffc9a7 || // ERC165 Interface ID for ERC165 interfaceId == 0x80ac58cd || // ERC165 Interface ID for ERC721 interfaceId == 0x5b5e139f; // ERC165 Interface ID for ERC721Metadata } function approve(address spender, uint256 tokenId) external { address owner = _tokenDataOf(tokenId).owner(); if (msg.sender != owner && !isApprovedForAll[owner][msg.sender]) revert CallerNotOwnerNorApproved(); getApproved[tokenId] = spender; emit Approval(owner, spender, tokenId); } function setApprovalForAll(address operator, bool approved) external { isApprovedForAll[msg.sender][operator] = approved; emit ApprovalForAll(msg.sender, operator, approved); } function safeTransferFrom( address from, address to, uint256 tokenId ) external { safeTransferFrom(from, to, tokenId, ''); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public { transferFrom(from, to, tokenId); if ( to.code.length != 0 && IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, data) != IERC721Receiver(to).onERC721Received.selector ) revert TransferToNonERC721ReceiverImplementer(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (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`, 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 // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// 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 v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // # ERC721M.sol // // _tokenData layout: // 0x________/cccccbbbbbbbbbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa // a [ 0] (uint160): address #owner (owner of token id) // b [160] (uint40): timestamp #lastTransfer (timestamp since the last transfer) // c [200] (uint20): #ownerCount (number of total owners of token) // f [220] (uint1): #staked flag (flag whether id has been staked) Note: this carries over when calling 'ownerOf' // f [221] (uint1): #mintAndStake flag (flag whether to carry over stake flag when calling tokenDataOf; used for mintAndStake and boost) // e [222] (uint1): #nextTokenDataSet flag (flag whether the data of next token id has already been set) // _ [224] (uint32): arbitrary data uint256 constant RESTRICTED_TOKEN_DATA = 0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // # MadMouse.sol // // _tokenData (metadata) layout: // 0xefg00000________________________________________________________ // e [252] (uint4): #level (mouse level) [0...2] (must be 0-based) // f [248] (uint4): #role (mouse role) [1...5] (must start at 1) // g [244] (uint4): #rarity (mouse rarity) [0...3] struct TokenData { address owner; uint256 lastTransfer; uint256 ownerCount; bool staked; bool mintAndStake; bool nextTokenDataSet; uint256 level; uint256 role; uint256 rarity; } // # ERC721M.sol // // _userData layout: // 0x________________________________ddccccccccccbbbbbbbbbbaaaaaaaaaa // a [ 0] (uint32): #balance (owner ERC721 balance) // b [ 40] (uint40): timestamp #stakeStart (timestamp when stake started) // c [ 80] (uint40): timestamp #lastClaimed (timestamp when user last claimed rewards) // d [120] (uint8): #numStaked (balance count of all staked tokens) // _ [128] (uint128): arbitrary data uint256 constant RESTRICTED_USER_DATA = 0x00000000000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // # MadMouseStaking.sol // // _userData (boost) layout: // 0xttttttttt/o/rriiffgghhaabbccddee________________________________ // a-e [128] (5x uint8): #roleBalances (balance of all staked roles) // f-h [168] (3x uint8): #levelBalances (balance of all staked levels) // i [192] (uint8): #specialGuestIndex (signals whether the user claims to hold a token of a certain collection) // r [200] (uint10): #rarityPoints (counter of rare traits; 1 is rare, 2 is super-rare, 3 is ultra-rare) // o [210] (uint8): #OGCount (counter of rare traits; 1 is rare, 2 is super-rare, 3 is ultra-rare) // t [218] (uint38): timestamp #boostStart (timestamp of when the boost by burning tokens of affiliate collections started) struct UserData { uint256 balance; uint256 stakeStart; uint256 lastClaimed; uint256 numStaked; uint256[5] roleBalances; uint256 uniqueRoleCount; // inferred uint256[3] levelBalances; uint256 specialGuestIndex; uint256 rarityPoints; uint256 OGCount; uint256 boostStart; } function applySafeDataTransform( uint256 userData, uint256 tokenData, uint256 userDataTransformed, uint256 tokenDataTransformed ) pure returns (uint256, uint256) { // mask transformed data in order to leave base data untouched in any case userData = (userData & RESTRICTED_USER_DATA) | (userDataTransformed & ~RESTRICTED_USER_DATA); tokenData = (tokenData & RESTRICTED_TOKEN_DATA) | (tokenDataTransformed & ~RESTRICTED_TOKEN_DATA); return (userData, tokenData); } // @note: many of these are unchecked, because safemath wouldn't be able to guard // overflows while updating bitmaps unless custom checks were to be implemented library UserDataOps { function getUserData(uint256 userData) internal pure returns (UserData memory) { return UserData({ balance: UserDataOps.balance(userData), stakeStart: UserDataOps.stakeStart(userData), lastClaimed: UserDataOps.lastClaimed(userData), numStaked: UserDataOps.numStaked(userData), roleBalances: UserDataOps.roleBalances(userData), uniqueRoleCount: UserDataOps.uniqueRoleCount(userData), levelBalances: UserDataOps.levelBalances(userData), specialGuestIndex: UserDataOps.specialGuestIndex(userData), rarityPoints: UserDataOps.rarityPoints(userData), OGCount: UserDataOps.OGCount(userData), boostStart: UserDataOps.boostStart(userData) }); } function balance(uint256 userData) internal pure returns (uint256) { return userData & 0xFFFFF; } function increaseBalance(uint256 userData, uint256 amount) internal pure returns (uint256) { unchecked { return userData + amount; } } function decreaseBalance(uint256 userData, uint256 amount) internal pure returns (uint256) { unchecked { return userData - amount; } } function numMinted(uint256 userData) internal pure returns (uint256) { return (userData >> 20) & 0xFFFFF; } function increaseNumMinted(uint256 userData, uint256 amount) internal pure returns (uint256) { unchecked { return userData + (amount << 20); } } function stakeStart(uint256 userData) internal pure returns (uint256) { return (userData >> 40) & 0xFFFFFFFFFF; } function setStakeStart(uint256 userData, uint256 timestamp) internal pure returns (uint256) { return (userData & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000000000FFFFFFFFFF) | (timestamp << 40); } function lastClaimed(uint256 userData) internal pure returns (uint256) { return (userData >> 80) & 0xFFFFFFFFFF; } function setLastClaimed(uint256 userData, uint256 timestamp) internal pure returns (uint256) { return (userData & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000000000FFFFFFFFFFFFFFFFFFFF) | (timestamp << 80); } function numStaked(uint256 userData) internal pure returns (uint256) { return (userData >> 120) & 0xFF; } function increaseNumStaked(uint256 userData, uint256 amount) internal pure returns (uint256) { unchecked { return userData + (amount << 120); } } function decreaseNumStaked(uint256 userData, uint256 amount) internal pure returns (uint256) { unchecked { return userData - (amount << 120); } } function roleBalances(uint256 userData) internal pure returns (uint256[5] memory balances) { balances = [ (userData >> (128 + 0)) & 0xFF, (userData >> (128 + 8)) & 0xFF, (userData >> (128 + 16)) & 0xFF, (userData >> (128 + 24)) & 0xFF, (userData >> (128 + 32)) & 0xFF ]; } // trait counts are set through hook in madmouse contract (MadMouse::_beforeStakeDataTransform) function uniqueRoleCount(uint256 userData) internal pure returns (uint256) { unchecked { return (toUInt256((userData >> (128)) & 0xFF > 0) + toUInt256((userData >> (128 + 8)) & 0xFF > 0) + toUInt256((userData >> (128 + 16)) & 0xFF > 0) + toUInt256((userData >> (128 + 24)) & 0xFF > 0) + toUInt256((userData >> (128 + 32)) & 0xFF > 0)); } } function levelBalances(uint256 userData) internal pure returns (uint256[3] memory balances) { balances = [(userData >> (168 + 0)) & 0xFF, (userData >> (168 + 8)) & 0xFF, (userData >> (168 + 16)) & 0xFF]; } // depends on the levels of the staked tokens (also set in hook MadMouse::_beforeStakeDataTransform) // counts the base reward, depending on the levels of staked ids function baseReward(uint256 userData) internal pure returns (uint256) { unchecked { return (((userData >> (168)) & 0xFF) + (((userData >> (168 + 8)) & 0xFF) << 1) + (((userData >> (168 + 16)) & 0xFF) << 2)); } } function rarityPoints(uint256 userData) internal pure returns (uint256) { return (userData >> 200) & 0x3FF; } function specialGuestIndex(uint256 userData) internal pure returns (uint256) { return (userData >> 192) & 0xFF; } function setSpecialGuestIndex(uint256 userData, uint256 index) internal pure returns (uint256) { return (userData & ~uint256(0xFF << 192)) | (index << 192); } function boostStart(uint256 userData) internal pure returns (uint256) { return (userData >> 218) & 0xFFFFFFFFFF; } function setBoostStart(uint256 userData, uint256 timestamp) internal pure returns (uint256) { return (userData & ~(uint256(0xFFFFFFFFFF) << 218)) | (timestamp << 218); } function OGCount(uint256 userData) internal pure returns (uint256) { return (userData >> 210) & 0xFF; } // (should start at 128, 168; but role/level start at 1...) function updateUserDataStake(uint256 userData, uint256 tokenData) internal pure returns (uint256) { unchecked { uint256 role = TokenDataOps.role(tokenData); if (role > 0) { userData += uint256(1) << (120 + (role << 3)); // roleBalances userData += TokenDataOps.rarity(tokenData) << 200; // rarityPoints } if (TokenDataOps.mintAndStake(tokenData)) userData += uint256(1) << 210; // OGCount userData += uint256(1) << (160 + (TokenDataOps.level(tokenData) << 3)); // levelBalances return userData; } } function updateUserDataUnstake(uint256 userData, uint256 tokenData) internal pure returns (uint256) { unchecked { uint256 role = TokenDataOps.role(tokenData); if (role > 0) { userData -= uint256(1) << (120 + (role << 3)); // roleBalances userData -= TokenDataOps.rarity(tokenData) << 200; // rarityPoints } if (TokenDataOps.mintAndStake(tokenData)) userData -= uint256(1) << 210; // OG-count userData -= uint256(1) << (160 + (TokenDataOps.level(tokenData) << 3)); // levelBalances return userData; } } function increaseLevelBalances(uint256 userData, uint256 tokenData) internal pure returns (uint256) { unchecked { return userData + (uint256(1) << (160 + (TokenDataOps.level(tokenData) << 3))); } } function decreaseLevelBalances(uint256 userData, uint256 tokenData) internal pure returns (uint256) { unchecked { return userData - (uint256(1) << (160 + (TokenDataOps.level(tokenData) << 3))); } } } library TokenDataOps { function getTokenData(uint256 tokenData) internal view returns (TokenData memory) { return TokenData({ owner: TokenDataOps.owner(tokenData), lastTransfer: TokenDataOps.lastTransfer(tokenData), ownerCount: TokenDataOps.ownerCount(tokenData), staked: TokenDataOps.staked(tokenData), mintAndStake: TokenDataOps.mintAndStake(tokenData), nextTokenDataSet: TokenDataOps.nextTokenDataSet(tokenData), level: TokenDataOps.level(tokenData), role: TokenDataOps.role(tokenData), rarity: TokenDataOps.rarity(tokenData) }); } function newTokenData( address owner_, uint256 lastTransfer_, bool stake_ ) internal pure returns (uint256) { uint256 tokenData = (uint256(uint160(owner_)) | (lastTransfer_ << 160) | (uint256(1) << 200)); return stake_ ? setstaked(setMintAndStake(tokenData)) : tokenData; } function copy(uint256 tokenData) internal pure returns (uint256) { // tokenData minus the token specific flags (4/2bits), i.e. only owner, lastTransfer, ownerCount // stake flag (& mintAndStake flag) carries over if mintAndStake was called return tokenData & (RESTRICTED_TOKEN_DATA >> (mintAndStake(tokenData) ? 2 : 4)); } function owner(uint256 tokenData) internal view returns (address) { if (staked(tokenData)) return address(this); return trueOwner(tokenData); } function setOwner(uint256 tokenData, address owner_) internal pure returns (uint256) { return (tokenData & 0xFFFFFFFFFFFFFFFFFFFFFFFF0000000000000000000000000000000000000000) | uint160(owner_); } function staked(uint256 tokenData) internal pure returns (bool) { return ((tokenData >> 220) & uint256(1)) > 0; // Note: this can carry over when calling 'ownerOf' } function setstaked(uint256 tokenData) internal pure returns (uint256) { return tokenData | (uint256(1) << 220); } function unsetstaked(uint256 tokenData) internal pure returns (uint256) { return tokenData & ~(uint256(1) << 220); } function mintAndStake(uint256 tokenData) internal pure returns (bool) { return ((tokenData >> 221) & uint256(1)) > 0; } function setMintAndStake(uint256 tokenData) internal pure returns (uint256) { return tokenData | (uint256(1) << 221); } function unsetMintAndStake(uint256 tokenData) internal pure returns (uint256) { return tokenData & ~(uint256(1) << 221); } function nextTokenDataSet(uint256 tokenData) internal pure returns (bool) { return ((tokenData >> 222) & uint256(1)) > 0; } function flagNextTokenDataSet(uint256 tokenData) internal pure returns (uint256) { return tokenData | (uint256(1) << 222); // nextTokenDatatSet flag (don't repeat the read/write) } function trueOwner(uint256 tokenData) internal pure returns (address) { return address(uint160(tokenData)); } function ownerCount(uint256 tokenData) internal pure returns (uint256) { return (tokenData >> 200) & 0xFFFFF; } function incrementOwnerCount(uint256 tokenData) internal pure returns (uint256) { uint256 newOwnerCount = min(ownerCount(tokenData) + 1, 0xFFFFF); return (tokenData & ~(uint256(0xFFFFF) << 200)) | (newOwnerCount << 200); } function resetOwnerCount(uint256 tokenData) internal pure returns (uint256) { uint256 count = min(ownerCount(tokenData), 2); // keep minter status return (tokenData & ~(uint256(0xFFFFF) << 200)) | (count << 200); } function lastTransfer(uint256 tokenData) internal pure returns (uint256) { return (tokenData >> 160) & 0xFFFFFFFFFF; } function setLastTransfer(uint256 tokenData, uint256 timestamp) internal pure returns (uint256) { return (tokenData & 0xFFFFFFFFFFFFFF0000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) | (timestamp << 160); } // MadMouse function level(uint256 tokenData) internal pure returns (uint256) { unchecked { return 1 + (tokenData >> 252); } } function increaseLevel(uint256 tokenData) internal pure returns (uint256) { unchecked { return tokenData + (uint256(1) << 252); } } function role(uint256 tokenData) internal pure returns (uint256) { return (tokenData >> 248) & 0xF; } function rarity(uint256 tokenData) internal pure returns (uint256) { return (tokenData >> 244) & 0xF; } // these slots should be are already 0 function setRoleAndRarity(uint256 tokenData, uint256 dna) internal pure returns (uint256) { return ((tokenData & ~(uint256(0xFF) << 244)) | (DNAOps.toRole(dna) << 248) | (DNAOps.toRarity(dna) << 244)); } } library DNAOps { function toRole(uint256 dna) internal pure returns (uint256) { unchecked { return 1 + ((dna & 0xFF) % 5); } } function toRarity(uint256 dna) internal pure returns (uint256) { uint256 dnaFur = (dna >> 8) & 0xFF; if (dnaFur > 108) return 0; if (dnaFur > 73) return 1; if (dnaFur > 17) return 2; return 3; } } /* ------------- Helpers ------------- */ // more efficient https://github.com/ethereum/solidity/issues/659 function toUInt256(bool x) pure returns (uint256 r) { assembly { r := x } } function min(uint256 a, uint256 b) pure returns (uint256) { return a < b ? a : b; } function isValidString(string calldata str, uint256 maxLen) pure returns (bool) { bytes memory b = bytes(str); if (b.length < 1 || b.length > maxLen || b[0] == 0x20 || b[b.length - 1] == 0x20) return false; bytes1 lastChar = b[0]; bytes1 char; for (uint256 i; i < b.length; ++i) { char = b[i]; if ( (char > 0x60 && char < 0x7B) || //a-z (char > 0x40 && char < 0x5B) || //A-Z (char == 0x20) || //space (char > 0x2F && char < 0x3A) //9-0 ) { lastChar = char; } else { return false; } } return true; }
{ "optimizer": { "enabled": true, "runs": 1337 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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IERC20","name":"token","type":"address"}],"name":"burnForBoost","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"claimReward","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"collectionIndex","type":"uint256"}],"name":"claimSpecialGuest","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"clearSpecialGuestData","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"description","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"forceFulfillRandomness","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getDNA","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getLevel","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getUserStakeInfo","outputs":[{"components":[{"internalType":"uint256","name":"numStaked","type":"uint256"},{"internalType":"uint256","name":"roleCount","type":"uint256"},{"internalType":"uint256","name":"roleBonus","type":"uint256"},{"internalType":"uint256","name":"specialGuestBonus","type":"uint256"},{"internalType":"uint256","name":"tokenBoost","type":"uint256"},{"internalType":"uint256","name":"stakeStart","type":"uint256"},{"internalType":"uint256","name":"timeBonus","type":"uint256"},{"internalType":"uint256","name":"rarityPoints","type":"uint256"},{"internalType":"uint256","name":"rarityBonus","type":"uint256"},{"internalType":"uint256","name":"OGCount","type":"uint256"},{"internalType":"uint256","name":"OGBonus","type":"uint256"},{"internalType":"uint256","name":"totalBonus","type":"uint256"},{"internalType":"uint256","name":"multiplierBase","type":"uint256"},{"internalType":"uint256","name":"dailyRewardBase","type":"uint256"},{"internalType":"uint256","name":"dailyReward","type":"uint256"},{"internalType":"uint256","name":"pendingReward","type":"uint256"},{"internalType":"int256","name":"tokenBoostDelta","type":"int256"},{"internalType":"uint256[3]","name":"levelBalances","type":"uint256[3]"}],"internalType":"struct MadMouseStaking.StakeInfo","name":"info","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"to","type":"address[]"}],"name":"giveAway","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"gouda","outputs":[{"internalType":"contract Gouda","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"hasSpecialGuest","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"imagesBaseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"levelUp","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"metadata","outputs":[{"internalType":"contract MadMouseMetadata","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"bool","name":"stake","type":"bool"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"mouseBio","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"mouseName","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"multiSigTreasury","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"numMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"numOwned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"numStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"pendingReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"level","type":"uint256"}],"name":"previewTokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"publicSaleActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"randomSeed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"randomSeedSet","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"requestId","type":"bytes32"},{"internalType":"uint256","name":"randomness","type":"uint256"}],"name":"rawFulfillRandomness","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"recoverToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestRandomSeed","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"resetBio","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"resetName","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"_imagesBaseURI","type":"string"},{"internalType":"bytes32","name":"secretSeed_","type":"bytes32"}],"name":"reveal","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"bio","type":"string"}],"name":"setBio","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract IERC20[]","name":"_boostTokens","type":"address[]"},{"internalType":"uint256[]","name":"_boostCosts","type":"uint256[]"}],"name":"setBoostTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"description_","type":"string"}],"name":"setDescription","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract Gouda","name":"gouda_","type":"address"}],"name":"setGoudaToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"uri","type":"string"}],"name":"setImagesBaseURI","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract MadMouseMetadata","name":"metadata_","type":"address"}],"name":"setMetadataAddress","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"name","type":"string"}],"name":"setName","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"duration","type":"uint256"}],"name":"setProfileUpdateMinHoldDuration","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bool","name":"active","type":"bool"}],"name":"setPublicSaleActive","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"address_","type":"address"}],"name":"setSignerAddress","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract IERC721","name":"collection","type":"address"},{"internalType":"bytes4","name":"selector","type":"bytes4"}],"name":"setSpecialGuestStakingSelector","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract IERC721[]","name":"collections","type":"address[]"},{"internalType":"uint256[]","name":"indices","type":"uint256[]"}],"name":"setSpecialGuests","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"shouldUpdateStakedIds","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"stake","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"type_","type":"uint256"}],"name":"tokenIdsOf","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":"totalLevel2Reached","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalLevel3Reached","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalNumStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"trueOwnerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"unstake","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"updateStakedTokenData","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"limit","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"bool","name":"stake","type":"bool"}],"name":"whitelistMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"payable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
b2393709b4cf0156fc89b28edf511f1d19de6851aa70ec585f949c7f16a7b523
-----Decoded View---------------
Arg [0] : secretHash_ (bytes32): 0xb2393709b4cf0156fc89b28edf511f1d19de6851aa70ec585f949c7f16a7b523
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : b2393709b4cf0156fc89b28edf511f1d19de6851aa70ec585f949c7f16a7b523
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A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.