NFT
Overview
TokenID
1700
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:
CryptoCoaster
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; /**====================================================================================== .-'--`-._ .-'--`-._ .-'--`-._ '-O---O--' '-O---O--' '-O---O--' ========================================================================================= ββββββββββββββββββββββββββββββββββββββββββββββββββ ββββββββββββββββββββββββββββββββββββββββββββββββββ ββββββββββββββββββββββββββββββββββββββββββββββββββ ββββββββββββββββββββββββββββββββββββββββββββββββββ ββββββββββββββββββββββββββββββββββββββββββββββββββ ββββββββββββββββββββββββββββββββββββββββββββββββββ βββββββββββββββββββββββββββββββββββββββββββββββββββββββββ βββββββββββββββββββββββββββββββββββββββββββββββββββββββββ βββββββββββββββββββββββββββββββββββββββββββββββββββββββββ βββββββββββββββββββββββββββββββββββββββββββββββββββββββββ βββββββββββββββββββββββββββββββββββββββββββββββββββββββββ βββββββββββββββββββββββββββββββββββββββββββββββββββββββββ /*========================================================================================= .-'--`-._ .-'--`-._ .-'--`-._ '-O---O--' '-O---O--' '-O---O--' =========================================================================================*/ import "./Base.sol"; import "./lib/scripty/IScriptyBuilder.sol"; import "./lib/SmallSolady.sol"; import "./Thumbnail.sol"; import "./ICryptoCoaster.sol"; import "@openzeppelin/contracts/utils/structs/BitMaps.sol"; import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol"; /** * @title Crypto Coaster * @author @xtremetom * @notice Experiment, 100% on-chain procedurally generated roller coaster * @dev No fancy mint mechanics, no promise of utility, no discord, just a code experiment * * There are parts of this contract that could be optimized but I have deliberately * tried to make things easy to read and understand * * Huge thanks to 0xthedude, frolic, dhof, ****, CODENAME883, Mathcastles community, * and everyone that helped with testing */ contract CryptoCoaster is Base { using BitMaps for BitMaps.BitMap; address public immutable _ethfsFileStorageAddress; address public immutable _scriptyStorageAddress; address public immutable _scriptyBuilderAddress; uint256 public immutable _supply; address public _thumbnailAddress; uint256 public _price = 0.025 ether; bool public _isOpen = false; // Address => Minted? BitMaps.BitMap _minted; address public _signer; address public constant _signatureDisabled = address(bytes20(keccak256("signatureDisabled"))); error MintClosed(); error ContractMinter(); error SoldOut(); error GreedyMinter(); error InsufficientFunds(); error WalletMax(); error TokenDoesntExist(); error InvalidSignature(); constructor( string memory name, string memory symbol, uint256 supply, address ethfsFileStorageAddress, address scriptyStorageAddress, address scriptyBuilderAddress, address thumbnailAddress ) Base(name, symbol) { _ethfsFileStorageAddress = ethfsFileStorageAddress; _scriptyStorageAddress = scriptyStorageAddress; _scriptyBuilderAddress = scriptyBuilderAddress; _thumbnailAddress = thumbnailAddress; _supply = supply; // mint reserve of 20 for friends that helped // and a few giveaways _safeMint(msg.sender, 20, ""); } /** * @notice Minting starts at token id #1 * @return Token id to start minting at */ function _startTokenId() internal pure override returns (uint256) { return 1; } /** * @notice Retrieve how many tokens have been minted * @return Total number of minted tokens */ function totalMinted() public view returns (uint256) { return _totalMinted(); } /*========================================================================================= .-'--`-._ MINTING '-O---O--' LOGIC =========================================================================================*/ /** * @notice Verify signature * @param sender - Address of sender * @param signature - Signature to verify */ modifier validateSignature(address sender, bytes memory signature) { if (_signer != _signatureDisabled) { bytes32 messageHash = ECDSA.toEthSignedMessageHash(abi.encode(sender)); (address signer,) = ECDSA.tryRecover(messageHash, signature); if (signer != _signer) { revert InvalidSignature(); } } _; } /** * @notice Mint those tokens * @dev No whitelist, just limit per wallet and signature verification * @param signature - Signature to verify */ function mint(bytes memory signature) public payable validateSignature(msg.sender, signature) { if (!_isOpen) revert MintClosed(); if (msg.sender != tx.origin) revert ContractMinter(); if (_minted.get(uint160(msg.sender))) revert WalletMax(); if (msg.value < _price) revert InsufficientFunds(); unchecked { if (_totalMinted() + 1 > _supply) revert SoldOut(); } _minted.set(uint160(msg.sender)); _safeMint(msg.sender, 1, ""); } /** * @notice Update the mint price. * @dev Very doubtful this gets used, but good to have * @param price - The new price. */ function updateMintPrice(uint256 price) external onlyOwner { _price = price; } /** * @notice Update thumbnail contract address * @param thumbnailAddress - Address of the thumbnail contract. */ function setThumbnailAddress(address thumbnailAddress) external onlyOwner { if (_totalMinted() == _supply) revert SoldOut(); _thumbnailAddress = thumbnailAddress; } /** * @notice Open or close minting * @param state - Boolean state for being open or closed. */ function setMintStatus(bool state) external onlyOwner { _isOpen = state; } /** * @notice Set address of signer * @param signer - Address of new signer */ function setSigner(address signer) external onlyOwner { _signer = signer; } /*========================================================================================= .-'--`-._ METADATA '-O---O--' LOGIC =========================================================================================*/ /** * @notice Build all the settings into a struct * @param tokenIdString - Value as string * @return settings - All settings as a struct */ function buildSettings(string memory tokenIdString) internal view returns (Settings memory settings) { (uint256 seed, bytes memory varSeed) = genSeed(tokenIdString); settings.seed = seed; settings.vars[0] = varSeed; (bytes memory varSpeed, uint256 speed) = trackSpeed(seed); settings.speed = speed; settings.vars[1] = varSpeed; (bytes memory varScale, uint256 scale) = worldScale(seed >> 8); settings.scale = scale; settings.vars[2] = varScale; (bytes memory varColor, Color memory color) = trackColor(seed >> 16); settings.color = color; settings.vars[3] = varColor; (bytes memory varBiome, string memory biomeName, uint256 biomeIDX) = biome(seed >> 24); settings.biomeName = biomeName; settings.biomeIDX = biomeIDX; settings.vars[4] = varBiome; (bytes memory varFlip, uint256 flip) = trackOrientation(seed >> 32); settings.flip = flip; settings.vars[5] = varFlip; } /** * @notice Util function to generate hash * @param tokenIdString - Value as string * @return hash - as uint256 */ function createHash(string memory tokenIdString) internal view returns (uint256 hash) { return uint256(keccak256(abi.encodePacked("coaster", tokenIdString, address(this)))); } /** * @notice Generate seed based on tag and track ID * @param tokenIdString - Track id as string * @return seed - final seed as uint56 * @return varSeed - JS compatible declaration of seed */ function genSeed(string memory tokenIdString) internal view returns (uint256 seed, bytes memory varSeed) { seed = createHash(tokenIdString); varSeed = abi.encodePacked( 'var seed="', SmallSolady.toString(seed), '";' ); } /** * @notice Determine the track speed setting * @param seed - Seed for a specific track * @return varSpeed - JS compatible declaration of track speed * @return speed - Speed setting a uint256 */ function trackSpeed(uint256 seed) internal pure returns (bytes memory varSpeed, uint256 speed) { uint256 r = seed % 100; speed = (r > 90) ? 2 : 1; varSpeed = abi.encodePacked( 'var speed="', SmallSolady.toString(speed), '";' ); } /** * @notice Determine the world scale setting * @param seed - Seed for a specific track * @return varScale - JS compatible declaration of world scale * @return scale - Scale setting a uint256 */ function worldScale(uint256 seed) internal pure returns (bytes memory varScale, uint256 scale) { uint256 r = seed % 100; scale = (r > 85) ? 2 : 1; varScale = abi.encodePacked( 'var scale="', SmallSolady.toString(scale), '";' ); } /** * @notice Pick track color based on seed * @param seed - Seed for a specific track * @return varColor - JS compatible declaration of track color * @return color - Color info struct */ function trackColor(uint256 seed) internal pure returns (bytes memory varColor, Color memory color) { string[7] memory trackHexs = ["#2710cf","#cf10c4","#10cf27","#106acf","#cf3210","#cf0808","#cfcf10"]; string[7] memory iconHexs = ["#9530eb", "#eb30d7","#23cc16","#169bcc","#f97316","#eb3030","#f0cb38"]; string[7] memory names = ["Purple", "Pink", "Green", "Blue", "Orange", "Red", "Yellow"]; uint256 r = seed % 7; color = Color(names[r], trackHexs[r], iconHexs[r]); varColor = abi.encodePacked( 'var trackColor="', color.trackHex, '";' ); } /** * @notice Gather biome data based on seed * @param seed - Seed for a specific track * @return varBiome - JS compatible declaration of biomeName * @return biomeName - Biome name as string * @return biomeIDX - array index for biome */ function biome(uint256 seed) internal pure returns (bytes memory varBiome, string memory biomeName, uint256 biomeIDX) { string[3] memory biomes = ["Snow", "Forest", "Desert"]; biomeIDX = seed % 3; biomeName = biomes[biomeIDX]; varBiome = abi.encodePacked( 'var biomeName="', biomeName, '";' ); } /** * @notice Silly adjustment to track * @param seed - Seed for a specific track * @return varTrackOr - JS compatible declaration of track orientation * @return flip - 0 | 1 | 2 - normal | horiz | vert */ function trackOrientation(uint256 seed) internal pure returns (bytes memory varTrackOr, uint256 flip) { uint256 r = seed % 100; flip = 0; if (r == 0) flip = 2; else if (r > 95) flip = 1; varTrackOr = abi.encodePacked( 'var flip="', SmallSolady.toString(flip) , '";' ); } /** * @notice Util function to help build traits * @param key - Trait key as string * @param value - Trait value as string * @return trait - object as string */ function buildTrait(string memory key, string memory value) internal pure returns (string memory trait) { return string.concat('{"trait_type":"', key, '","value": "', value, '"}'); } /** * @notice Build attributes for metadata * @param settings - Track settings struct * @return attr - array as a string */ function buildAttributes(Settings memory settings) internal pure returns (bytes memory attr) { // orientation string memory orientation = "Forward"; if (settings.flip == 1) orientation = "Backward"; else if (settings.flip == 2) orientation = "Upside down"; // speed string memory speedString = "Normal"; if (settings.speed == 2) speedString = "Fast"; // world scale string memory scaleString = "Normal"; if (settings.scale == 2) scaleString = "Big"; return abi.encodePacked( '"attributes": [', buildTrait("Track Color", settings.color.name), ',', buildTrait("Biome", settings.biomeName), ',', buildTrait("Orientation", orientation), ',', buildTrait("Speed", speedString), ',', buildTrait("World Scale", scaleString), ']' ); } /** * @notice Pack and base64 encode JS compatible vars * @param settings - Track settings struct * @return vars - base64 encoded JS compatible setting variables */ function buildVars(Settings memory settings) internal pure returns (bytes memory vars){ return bytes( SmallSolady.encode( abi.encodePacked( settings.vars[0], settings.vars[1], settings.vars[2], settings.vars[3], settings.vars[4], settings.vars[5] ) ) ); } /** * @notice Use Scripty to generate the final html * @dev I opted for the lazy dev approach and let scripty calculate the required buffersize * This could be calculated and passed to the contract at any point prior to its use * in `getHTMLWrappedURLSafe` * @param requests - Array of WrappedScriptRequest data * @return html - as bytes */ function buildAnimationURI(WrappedScriptRequest[] memory requests) internal view returns (bytes memory html) { IScriptyBuilder iScriptyBuilder = IScriptyBuilder(_scriptyBuilderAddress); uint256 bufferSize = iScriptyBuilder.getBufferSizeForURLSafeHTMLWrapped(requests); return iScriptyBuilder.getHTMLWrappedURLSafe(requests, bufferSize); } /** * @notice Build the metadata including the full render html for the coaster * @dev This depends on * - https://ethfs.xyz/ [stores code libraries] * - https://github.com/intartnft/scripty.sol [builds rendering html and stores code libraries] * @param tokenId - TokenId to build coaster for * @return metadata - as string */ function tokenURI( uint256 tokenId ) public view virtual override(ERC721A, IERC721A) returns (string memory metadata) { // show nothing if token doesnt exist if (!_exists(tokenId)) revert TokenDoesntExist(); string memory tokenIdString = SmallSolady.toString(tokenId); // Generate all the settings and various objects for the metadata Settings memory settings = buildSettings(tokenIdString); bytes memory attr = buildAttributes(settings); bytes memory vars = buildVars(settings); string memory thumbnail = SmallSolady.encode( Thumbnail(_thumbnailAddress).buildThumbnail(settings) ); // To build the html I use Scripty to manage all the annoying tagging and html construction // A combination of EthFS and Scripty is used for storage and this array stores the required // code data WrappedScriptRequest[] memory requests = new WrappedScriptRequest[](7); // The order of steps is the order the code will appear in the final // rendering html injected into the metadata // // 1. - CSS + dom elements // 2. - setting JS variables // 3. - gzipped 3D models as JS variable // 4. - gzipped ThreeJS lib // 5. - gzipped Coaster bundle // 6. - gzip handler // // When the gzip handler runs it detects scripts with `text/javascript+gzip` // gunzips them and appends the raw code in this order: // // - ThreeJS [no dependencies] // - Coaster script bundle [depends on ThreeJS] // | // -- GLTFLoader [requires ThreeJS] // -- BufferGeometryUtils [requires ThreeJS] // -- Other scripts [requires ThreeJS + setting variables] // -- Scenebuilder [requires ThreeJS + 3D models] // // 3D models are explicitly gunzipped and converted into `octet-stream` // allowing them to easily be loaded using the glb ThreeJS loader // More loaders are available: // https://github.com/mrdoob/three.js/tree/dev/examples/jsm/loaders // I used .glb files as an example, however other formats like SDF and colored STL // would be better suited in terms of storage cost // // [PREVENTING GAS OUT] // It is worth noting that for this piece I am using `getHTMLWrappedURLSafe` in `buildAnimationURI()` // above. This ensures the code is handled with urlencoding to make it URL safe vs base64 encoding. For a // codebase this big (threejs + models + scripts) base64 encoding within a contract would result in a gas // out. // However, I have tried to include an example of all `wrapTypes` below, one of which is a forced base64 // encoding, for demo purposes. // Step 1. // - create custom content blocks that have no wrapper // - we do this to easily inject css and dom elements // - double urlencoded // - first block is css + some JS // - second block is coaster settings [biome + speed] // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L648 // [double urlencoded data] requests[0].wrapType = 4; requests[0].scriptContent = "%253Cstyle%253Ebody%252Chtml%257Boverflow%253Ahidden%253Bmargin%253A0%253Bwidth%253A100%2525%253Bheight%253A100%2525%257D%2523overlay%257Bposition%253Aabsolute%253Bwidth%253A100vw%253Bheight%253A100vh%253Btransition%253A.75s%2520ease-out%253Bbackground-color%253A%2523e2e8f0%253Bdisplay%253Aflex%253Bflex-direction%253Acolumn%253Bjustify-content%253Acenter%253Balign-items%253Acenter%257D.bbg%257Bwidth%253A75%2525%253Bmargin%253A1rem%253Bbackground-color%253A%2523cbd5e1%253Bmax-width%253A400px%253Bborder-radius%253A2rem%253Bheight%253A.8rem%257D.bbar%257Bbackground-color%253A%25236366f1%253Bwidth%253A5%2525%253Bborder-radius%253A2rem%253Bheight%253A.8rem%257D%2523info%257Bfont-family%253ATahoma%252CArial%252CHelvetica%252Csans-serif%253Bfont-size%253A.8rem%253Bcolor%253A%2523475569%253Bmin-height%253A1rem%257D%2523controls%257Bposition%253Aabsolute%253Bbottom%253A20px%253Bleft%253A20px%257D%2523camber%257Bborder%253A1px%2520solid%2520%2523fff%253Bborder-radius%253A4px%253Bbackground%253Argba(0%252C0%252C0%252C.1)%253Bcolor%253A%2523dc2626%253Btext-align%253Acenter%253Bopacity%253A.5%253Boutline%253A0%253Bmouse%253Apointer%257D%2523camber.active%257Bbackground%253Argba(255%252C255%252C255%252C.5)%253Bcolor%253A%252316a34a%253Bopacity%253A1%257D%2523camber%2520svg%257Bwidth%253A36px%253Bheight%253A36px%257D%253C%252Fstyle%253E%253Cdiv%2520id%253D'overlay'%253E%253Cdiv%2520class%253D'bbg'%253E%253Cdiv%2520id%253D'bar'%2520class%253D'bbar'%253E%253C%252Fdiv%253E%253C%252Fdiv%253E%253Cdiv%2520id%253D'info'%253E%253C%252Fdiv%253E%253C%252Fdiv%253E%253Ccanvas%2520id%253D'coaster'%253E%253C%252Fcanvas%253E%253Cdiv%2520id%253D'controls'%253E%253Cbutton%2520id%253D'camber'%2520onclick%253D'toggleActive()'%253E%253Csvg%2520viewBox%253D'0%25200%252012.7%252012.7'%2520xmlns%253D'http%253A%252F%252Fwww.w3.org%252F2000%252Fsvg'%253E%253Cg%2520style%253D'stroke%253AcurrentColor%253Bstroke-width%253A.6%253Bstroke-linecap%253Around%253Bfill%253Anone'%253E%253Crect%2520width%253D'4.217'%2520height%253D'4.217'%2520x%253D'4.257'%2520y%253D'5.388'%2520ry%253D'.31'%2520rx%253D'.31'%252F%253E%253Cpath%2520d%253D'm12.37%25206.919-.935%25201.16-1.145-1.025M.487%25206.919l.936%25201.16%25201.145-1.025'%2520transform%253D'matrix(.94246%25200%25200%2520.9392%2520.291%2520.21)'%252F%253E%253Cpath%2520d%253D'M-1.464-8.007a4.99%25205.036%25200%25200%25201-2.495%25204.36%25204.99%25205.036%25200%25200%25201-4.99%25200%25204.99%25205.036%25200%25200%25201-2.495-4.36'%2520transform%253D'matrix(-.94246%25200%25200%2520-.9392%2520.291%2520.21)'%252F%253E%253C%252Fg%253E%253C%252Fsvg%253E%253C%252Fbutton%253E%253C%252Fdiv%253E"; // Step 2. // - wrap the JS variables in <script> // - no name is needed as we are injected the code rather than // pulling it from a contract (scriptyStorage/EthFS) // - wrapType 1 w/ script content // // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L638 // <script src="data:text/javascript;base64,[vars]"></script> requests[1].name = ""; requests[1].wrapType = 1; requests[1].scriptContent = vars; // Ideally these settings would be included in the main bulk of the coaster // code, but to allow you to mess around with the coaster by creating your own // settings json, I have kept them separate // // [IMPORTANT] // Note how this code is not encoded in any way. The `wrapType 0` in combination with `getHTMLWrappedURLSafe` // from `buildAnimationURI()` results in the scriptContent being base64 encoded in Scripty // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L638 // <script src="data:text/javascript;base64,[SCRIPT]"></script> requests[2].wrapType = 0; requests[2].scriptContent = 'const biomes={Snow:{sky:15987703,fog:14737632,ground:11526632,hemi:[14154495,13806982,.5],sun:[15127463,1,0,100,50],models:[["treePineSnowRound",200,2,7,1],["rockB",50,1,3,0,[["rock.001",5918017]]]]},Desert:{fog:15005690,sky:12446963,ground:10777144,hemi:[16770732,4142384,.605],sun:[16763989,1,0,100,50],models:[["palmDetailed",200,1,2.8,1],["grassLarge",50,1,3,0,[["foliage",4225055]]],["rockB",50,1,3,0]]},Forest:{fog:15005690,sky:12446963,ground:5535813,hemi:[16770732,4142384,.45],sun:[16763989,1,0,100,-50],models:[["treePine",250,3,8,1,[["leafsDark",1274191],["woodBarkDark",12606262]]],["grassLarge",50,1,3,0,[["foliage",4225055]]],["rockB",50,1,3,0,[["rock.001",5918017]]]]}};const data=biomes[biomeName];const speedSettings=[{acc:45e-5,dec:453e-6,max:.03,min:.004},{acc:3e-4,dec:305e-6,max:.03,min:.004}];'; // Step 3. // - pull the gzipped 3D models from scriptyStorage // I could have stored on EthFS, but wanted to show that pulling from // another contract is possible. // - custom wrap to declare the data as a JS compatible variable // - wrapType 4 w/ script content and custom wraps // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L648 // <script>var gzipModels="[coaster_models_v8]"</script> requests[3].name = "coaster_models_v8"; requests[3].wrapType = 4; requests[3].wrapPrefix = "%253Cscript%253Evar%2520gzipModels%2520%253D%2522"; requests[3].wrapSuffix = "%2522%253C%252Fscript%253E"; requests[3].contractAddress = _scriptyStorageAddress; // Step 4. // - pull the gzipped threeJS lib from EthFS // - wrapType 2 will handle the gzip script wrappers // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L642 // <script type="text/javascript+gzip" src="data:text/javascript;base64,[three-v0.147.0.min.js.gz]"></script> requests[4].name = "three-v0.147.0.min.js.gz"; requests[4].wrapType = 2; requests[4].contractAddress = _ethfsFileStorageAddress; // Step 5. // - pull the coaster code from scriptyStorage // I could have stored on EthFS, but wanted to show that pulling from // another contract is possible. // - wrapType 2 will handle the gzip script wrappers // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L642 // <script type="text/javascript+gzip" src="data:text/javascript;base64,[cryptoCoaster.min.js.gz]"></script> requests[5].name = "cryptoCoaster.min.js.gz_v2"; requests[5].wrapType = 2; requests[5].contractAddress = _scriptyStorageAddress; // Step 6. // - pull the gunzip handler from EthFS // - wrapType 1 will handle the script tags // // Final Output: // https://github.com/intartnft/scripty.sol/blob/main/contracts/scripty/ScriptyBuilder.sol#L638 // <script src="data:text/javascript;base64,[gunzipScripts-0.0.1.js]"></script> requests[6].name = "gunzipScripts-0.0.1.js"; requests[6].wrapType = 1; requests[6].contractAddress = _ethfsFileStorageAddress; bytes memory json = abi.encodePacked( '{"name":"', 'Track: #', tokenIdString, '", "description":"', 'Crypto Coaster is an experiment to see just how far we can push on-chain NFTs. All the models and code are compressed then stored, and retrieved from the blockchain.', '","image":"data:image/svg+xml;base64,', thumbnail, '","animation_url":"', buildAnimationURI(requests), '",', attr, '}' ); return string( abi.encodePacked( "data:application/json,", json ) ); } /*========================================================================================= .-'--`-._ GETTER '-O---O--' LOGIC =========================================================================================*/ /** * @notice Grab settings for given Id * @dev Can do fun stuff with settings in the future :) * On the minting app we use this to grab the settings and create each coaster without having * to call tokenURI() * @param tokenId - Id of chosen token * @return settings - All settings as a struct */ function getSettings(uint256 tokenId) public view returns (Settings memory settings) { if (!_exists(tokenId)) return settings; return buildSettings(SmallSolady.toString(tokenId)); } } /**====================================================================================== .-'--`-._ .-'--`-._ .-'--`-._ '-O---O--' '-O---O--' '-O---O--' =========================================================================================*/
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; import "../../interfaces/IERC2981.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/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 // Deprecated in v4.8 } 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"); } } /** * @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) { 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. /// @solidity memory-safe-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 { 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 β {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 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 // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // β `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // β `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/BitMaps.sol) pragma solidity ^0.8.0; /** * @dev Library for managing uint256 to bool mapping in a compact and efficient way, providing the keys are sequential. * Largely inspired by Uniswap's https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol[merkle-distributor]. */ library BitMaps { struct BitMap { mapping(uint256 => uint256) _data; } /** * @dev Returns whether the bit at `index` is set. */ function get(BitMap storage bitmap, uint256 index) internal view returns (bool) { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); return bitmap._data[bucket] & mask != 0; } /** * @dev Sets the bit at `index` to the boolean `value`. */ function setTo( BitMap storage bitmap, uint256 index, bool value ) internal { if (value) { set(bitmap, index); } else { unset(bitmap, index); } } /** * @dev Sets the bit at `index`. */ function set(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] |= mask; } /** * @dev Unsets the bit at `index`. */ function unset(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] &= ~mask; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Optimized and flexible operator filterer to abide to OpenSea's /// mandatory on-chain royalty enforcement in order for new collections to /// receive royalties. /// For more information, see: /// See: https://github.com/ProjectOpenSea/operator-filter-registry abstract contract OperatorFilterer { /// @dev The default OpenSea operator blocklist subscription. address internal constant _DEFAULT_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6; /// @dev The OpenSea operator filter registry. address internal constant _OPERATOR_FILTER_REGISTRY = 0x000000000000AAeB6D7670E522A718067333cd4E; /// @dev Registers the current contract to OpenSea's operator filter, /// and subscribe to the default OpenSea operator blocklist. /// Note: Will not revert nor update existing settings for repeated registration. function _registerForOperatorFiltering() internal virtual { _registerForOperatorFiltering(_DEFAULT_SUBSCRIPTION, true); } /// @dev Registers the current contract to OpenSea's operator filter. /// Note: Will not revert nor update existing settings for repeated registration. function _registerForOperatorFiltering(address subscriptionOrRegistrantToCopy, bool subscribe) internal virtual { /// @solidity memory-safe-assembly assembly { let functionSelector := 0x7d3e3dbe // `registerAndSubscribe(address,address)`. // Clean the upper 96 bits of `subscriptionOrRegistrantToCopy` in case they are dirty. subscriptionOrRegistrantToCopy := shr(96, shl(96, subscriptionOrRegistrantToCopy)) for {} iszero(subscribe) {} { if iszero(subscriptionOrRegistrantToCopy) { functionSelector := 0x4420e486 // `register(address)`. break } functionSelector := 0xa0af2903 // `registerAndCopyEntries(address,address)`. break } // Store the function selector. mstore(0x00, shl(224, functionSelector)) // Store the `address(this)`. mstore(0x04, address()) // Store the `subscriptionOrRegistrantToCopy`. mstore(0x24, subscriptionOrRegistrantToCopy) // Register into the registry. if iszero(call(gas(), _OPERATOR_FILTER_REGISTRY, 0, 0x00, 0x44, 0x00, 0x04)) { // If the function selector has not been overwritten, // it is an out-of-gas error. if eq(shr(224, mload(0x00)), functionSelector) { // To prevent gas under-estimation. revert(0, 0) } } // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, because of Solidity's memory size limits. mstore(0x24, 0) } } /// @dev Modifier to guard a function and revert if the caller is a blocked operator. modifier onlyAllowedOperator(address from) virtual { if (from != msg.sender) { if (!_isPriorityOperator(msg.sender)) { if (_operatorFilteringEnabled()) _revertIfBlocked(msg.sender); } } _; } /// @dev Modifier to guard a function from approving a blocked operator.. modifier onlyAllowedOperatorApproval(address operator) virtual { if (!_isPriorityOperator(operator)) { if (_operatorFilteringEnabled()) _revertIfBlocked(operator); } _; } /// @dev Helper function that reverts if the `operator` is blocked by the registry. function _revertIfBlocked(address operator) private view { /// @solidity memory-safe-assembly assembly { // Store the function selector of `isOperatorAllowed(address,address)`, // shifted left by 6 bytes, which is enough for 8tb of memory. // We waste 6-3 = 3 bytes to save on 6 runtime gas (PUSH1 0x224 SHL). mstore(0x00, 0xc6171134001122334455) // Store the `address(this)`. mstore(0x1a, address()) // Store the `operator`. mstore(0x3a, operator) // `isOperatorAllowed` always returns true if it does not revert. if iszero(staticcall(gas(), _OPERATOR_FILTER_REGISTRY, 0x16, 0x44, 0x00, 0x00)) { // Bubble up the revert if the staticcall reverts. returndatacopy(0x00, 0x00, returndatasize()) revert(0x00, returndatasize()) } // We'll skip checking if `from` is inside the blacklist. // Even though that can block transferring out of wrapper contracts, // we don't want tokens to be stuck. // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, if less than 8tb of memory is used. mstore(0x3a, 0) } } /// @dev For deriving contracts to override, so that operator filtering /// can be turned on / off. /// Returns true by default. function _operatorFilteringEnabled() internal view virtual returns (bool) { return true; } /// @dev For deriving contracts to override, so that preferred marketplaces can /// skip operator filtering, helping users save gas. /// Returns false for all inputs by default. function _isPriorityOperator(address) internal view virtual returns (bool) { return false; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {IERC721A, ERC721A} from "erc721a/contracts/ERC721A.sol"; import {ERC721AQueryable} from "erc721a/contracts/extensions/ERC721AQueryable.sol"; import {ERC721ABurnable} from "erc721a/contracts/extensions/ERC721ABurnable.sol"; import {OperatorFilterer} from "closedsea/src/OperatorFilterer.sol"; import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol"; import {IERC2981, ERC2981} from "@openzeppelin/contracts/token/common/ERC2981.sol"; contract Base is ERC721AQueryable, ERC721ABurnable, OperatorFilterer, Ownable, ERC2981 { bool public operatorFilteringEnabled; error ZeroBalance(); error FailToWithdraw(); constructor(string memory name, string memory symbol) ERC721A (name, symbol) { _registerForOperatorFiltering(); operatorFilteringEnabled = true; // Set royalty receiver to the contract creator, // at 5% as BP. _setDefaultRoyalty(msg.sender, 500); } /** * @notice Withdraw all Eth funds */ function withdrawAll() external onlyOwner { if (address(this).balance == 0) revert ZeroBalance(); (bool sent, ) = owner().call{value: address(this).balance}(""); if(!sent) revert FailToWithdraw(); } /** * @notice Withdraw erc20 that pile up, if any * @param token - ERC20 token to withdraw */ function withdrawAllERC20(IERC20 token) external onlyOwner { token.transfer(owner(), token.balanceOf(address(this))); } /** * @notice Global approval for given operator * @param operator - address of operator * @param approved - true | false */ function setApprovalForAll(address operator, bool approved) public override (IERC721A, ERC721A) onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } /** * @notice Operator approval for a given tokenId * @param operator - address of operator * @param tokenId - tokenId to grant approval for */ function approve(address operator, uint256 tokenId) public payable override (IERC721A, ERC721A) onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } /** * @notice Transfer token `from` `to` * @param from - address to transfer from * @param to - address to transfer to * @param tokenId - id of token to transfer */ function transferFrom(address from, address to, uint256 tokenId) public payable override (IERC721A, ERC721A) onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } /** * @notice Safe transfer token `from` `to` * @param from - address to transfer from * @param to - address to transfer to * @param tokenId - id of token to transfer */ function safeTransferFrom(address from, address to, uint256 tokenId) public payable override (IERC721A, ERC721A) onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } /** * @notice Safe transfer token `from` `to` * @param from - address to transfer from * @param to - address to transfer to * @param tokenId - id of token to transfer * @param data - additional bytes data */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public payable override (IERC721A, ERC721A) onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } /** * @notice Check that various interfaces are supported * @param interfaceId - id of interface to check * @return bool for support */ function supportsInterface(bytes4 interfaceId) public view virtual override (IERC721A, ERC721A, ERC2981) returns (bool) { // Supports the following `interfaceId`s: // - IERC165: 0x01ffc9a7 // - IERC721: 0x80ac58cd // - IERC721Metadata: 0x5b5e139f // - IERC2981: 0x2a55205a return ERC721A.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId); } /** * @notice Set royalties for all tokens. * @param receiver - Address receiving royalties. * @param feeNumerator - Fee as Basis points. */ function setDefaultRoyalty(address receiver, uint96 feeNumerator) public onlyOwner { _setDefaultRoyalty(receiver, feeNumerator); } /** * @notice Set operator filtering on or off * @param value - desired state value */ function setOperatorFilteringEnabled(bool value) public onlyOwner { operatorFilteringEnabled = value; } /** * @notice Internally check operator filter state * @return state as boolean */ function _operatorFilteringEnabled() internal view override returns (bool) { return operatorFilteringEnabled; } /** * @notice Internally check if operator is priority * @return priority as boolean */ function _isPriorityOperator(address operator) internal pure override returns (bool) { // OpenSea Seaport Conduit: // https://etherscan.io/address/0x1E0049783F008A0085193E00003D00cd54003c71 // https://goerli.etherscan.io/address/0x1E0049783F008A0085193E00003D00cd54003c71 return operator == address(0x1E0049783F008A0085193E00003D00cd54003c71); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; struct Settings { uint256 seed; uint256 biomeIDX; string biomeName; // uint256 color; // string colorHex; // string colorName; Color color; uint256 scale; uint256 speed; uint256 flip; bytes[6] vars; } struct Color { string name; string trackHex; string iconHex; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; /////////////////////////////////////////////////////////// // βββββββββββββββββββββββββββββββββββββββββββββββββββββ // // βββββββββββββββββββββββββββββββββββββββββββββββββββββ // // βββββββββββββββββββββββββββββββββββββββββββββββββββββ // // βββββββββββββββββββββββββββββββββββββββββββββββββββββ // // βββββββββββββββββββββββββββββββββββββββββββββββββββββ // // βββββββββββββββββββββββββββββββββββββββββββββββββββββ // /////////////////////////////////////////////////////////// // ============================================================= // STRUCTS // ============================================================= struct WrappedScriptRequest { string name; address contractAddress; bytes contractData; uint8 wrapType; bytes wrapPrefix; bytes wrapSuffix; bytes scriptContent; } struct InlineScriptRequest { string name; address contractAddress; bytes contractData; bytes scriptContent; } interface IScriptyBuilder { // ============================================================= // ERRORS // ============================================================= /** * @notice Error for, Invalid length of requests */ error InvalidRequestsLength(); // ============================================================= // RAW HTML GETTERS // ============================================================= /** * @notice Get requested scripts housed in <body> with custom wrappers * @dev Your requested scripts are returned in the following format: * <html> * <head></head> * <body style='margin:0;'> * [wrapPrefix[0]]{request[0]}[wrapSuffix[0]] * [wrapPrefix[1]]{request[1]}[wrapSuffix[1]] * ... * [wrapPrefix[n]]{request[n]}[wrapSuffix[n]] * </body> * </html> * @param requests - Array of WrappedScriptRequests * @param bufferSize - Total buffer size of all requested scripts * @return Full html wrapped scripts */ function getHTMLWrapped( WrappedScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (bytes memory); /** * @notice Get requested scripts housed in URL Safe wrappers * @dev Any wrapper type 0 scripts are converted to base64 and wrapped * with <script src="data:text/javascript;base64,[SCRIPT]"></script> * * [WARNING]: Large non-base64 libraries that need base64 encoding * carry a high risk of causing a gas out. Highly advised to use * base64 encoded scripts where possible * * Your requested scripts are returned in the following format: * <html> * <head></head> * <body style='margin:0;'> * [wrapPrefix[0]]{request[0]}[wrapSuffix[0]] * [wrapPrefix[1]]{request[1]}[wrapSuffix[1]] * ... * [wrapPrefix[n]]{request[n]}[wrapSuffix[n]] * </body> * </html> * @param requests - Array of WrappedScriptRequests * @param bufferSize - Total buffer size of all requested scripts * @return Full URL Safe wrapped scripts */ function getHTMLWrappedURLSafe( WrappedScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (bytes memory); /** * @notice Get requested scripts housed in <body> all wrapped in <script></script> * @dev Your requested scripts are returned in the following format: * <html> * <head></head> * <body style='margin:0;'> * <script> * {request[0]} * {request[1]} * ... * {request[n]} * </script> * </body> * </html> * @param requests - Array of InlineScriptRequest * @param bufferSize - Total buffer size of all requested scripts * @return Full html wrapped scripts */ function getHTMLInline( InlineScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (bytes memory); // ============================================================= // ENCODED HTML GETTERS // ============================================================= /** * @notice Get {getHTMLWrapped} and base64 encode it * @param requests - Array of WrappedScriptRequests * @param bufferSize - Total buffer size of all requested scripts * @return Full html wrapped scripts, base64 encoded */ function getEncodedHTMLWrapped( WrappedScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (bytes memory); /** * @notice Get {getHTMLInline} and base64 encode it * @param requests - Array of InlineScriptRequests * @param bufferSize - Total buffer size of all requested scripts * @return Full html wrapped scripts, base64 encoded */ function getEncodedHTMLInline( InlineScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (bytes memory); // ============================================================= // STRING UTILITIES // ============================================================= /** * @notice Convert {getHTMLWrapped} output to a string * @param requests - Array of WrappedScriptRequests * @param bufferSize - Total buffer size of all requested scripts * @return {getHTMLWrapped} as a string */ function getHTMLWrappedString( WrappedScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (string memory); /** * @notice Convert {getHTMLInline} output to a string * @param requests - Array of InlineScriptRequests * @param bufferSize - Total buffer size of all requested scripts * @return {getHTMLInline} as a string */ function getHTMLInlineString( InlineScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (string memory); /** * @notice Convert {getEncodedHTMLWrapped} output to a string * @param requests - Array of WrappedScriptRequests * @param bufferSize - Total buffer size of all requested scripts * before encoding. * @return {getEncodedHTMLWrapped} as a string */ function getEncodedHTMLWrappedString( WrappedScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (string memory); /** * @notice Convert {getEncodedHTMLInline} output to a string * @param requests - Array of InlineScriptRequests * @param bufferSize - Total buffer size of all requested scripts * before encoding. * @return {getEncodedHTMLInline} as a string */ function getEncodedHTMLInlineString( InlineScriptRequest[] calldata requests, uint256 bufferSize ) external view returns (string memory); // ============================================================= // OFF-CHAIN UTILITIES // ============================================================= /** * @notice Get the buffer size of a single inline requested code * @param request - InlineScriptRequest data for code * @return Buffer size as an unit256 */ function getInlineScriptSize(InlineScriptRequest memory request) external view returns (uint256); /** * @notice Get the buffer size of a single wrapped requested code * @param request - WrappedScriptRequest data for code * @return Buffer size as an unit256 */ function getWrappedScriptSize(WrappedScriptRequest memory request) external view returns (uint256); /** * @notice Get the buffer size of a single wrapped requested code * @dev If the script is of wrapper type 0, we get buffer size for * base64 encoded version. * @param request - WrappedScriptRequest data for code * @return Buffer size as an unit256 */ function getURLSafeWrappedScriptSize(WrappedScriptRequest memory request) external view returns (uint256); /** * @notice Get the buffer size of an array of html wrapped inline scripts * @param requests - InlineScriptRequests data for code * @return Buffer size as an unit256 */ function getBufferSizeForHTMLInline(InlineScriptRequest[] calldata requests) external view returns (uint256); /** * @notice Get the buffer size of an array of html wrapped, wrapped scripts * @param requests - WrappedScriptRequests data for code * @return Buffer size as an unit256 */ function getBufferSizeForHTMLWrapped( WrappedScriptRequest[] calldata requests ) external view returns (uint256); /** * @notice Get the buffer size of an array of URL safe html wrapped scripts * @param requests - WrappedScriptRequests data for code * @return Buffer size as an unit256 */ function getBufferSizeForURLSafeHTMLWrapped( WrappedScriptRequest[] calldata requests ) external view returns (uint256); /** * @notice Get the buffer size for encoded HTML inline scripts * @param requests - InlineScriptRequests data for code * @return Buffer size as an unit256 */ function getBufferSizeForEncodedHTMLInline( InlineScriptRequest[] calldata requests ) external view returns (uint256); /** * @notice Get the buffer size for encoded HTML inline scripts * @param requests - InlineScriptRequests data for code * @return Buffer size as an unit256 */ function getBufferSizeForEncodedHTMLWrapped( WrappedScriptRequest[] calldata requests ) external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; /// @notice Library created from cherry picked parts of Solady /// @author Solady (https://github.com/vectorized/solady/blob/main/src) library SmallSolady { /// @dev Returns the base 10 decimal representation of `value`. function toString(uint256 value) internal pure returns (string memory str) { /// @solidity memory-safe-assembly assembly { // The maximum value of a uint256 contains 78 digits (1 byte per digit), but // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned. // We will need 1 word for the trailing zeros padding, 1 word for the length, // and 3 words for a maximum of 78 digits. str := add(mload(0x40), 0x80) // Update the free memory pointer to allocate. mstore(0x40, add(str, 0x20)) // Zeroize the slot after the string. mstore(str, 0) // Cache the end of the memory to calculate the length later. let end := str let w := not(0) // Tsk. // We write the string from rightmost digit to leftmost digit. // The following is essentially a do-while loop that also handles the zero case. for { let temp := value } 1 {} { str := add(str, w) // `sub(str, 1)`. // Write the character to the pointer. // The ASCII index of the '0' character is 48. mstore8(str, add(48, mod(temp, 10))) // Keep dividing `temp` until zero. temp := div(temp, 10) if iszero(temp) { break } } let length := sub(end, str) // Move the pointer 32 bytes leftwards to make room for the length. str := sub(str, 0x20) // Store the length. mstore(str, length) } } /// @dev Encodes `data` using the base64 encoding described in RFC 4648. /// See: https://datatracker.ietf.org/doc/html/rfc4648 /// @param fileSafe Whether to replace '+' with '-' and '/' with '_'. /// @param noPadding Whether to strip away the padding. function encode(bytes memory data, bool fileSafe, bool noPadding) internal pure returns (string memory result) { /// @solidity memory-safe-assembly assembly { let dataLength := mload(data) if dataLength { // Multiply by 4/3 rounded up. // The `shl(2, ...)` is equivalent to multiplying by 4. let encodedLength := shl(2, div(add(dataLength, 2), 3)) // Set `result` to point to the start of the free memory. result := mload(0x40) // Store the table into the scratch space. // Offsetted by -1 byte so that the `mload` will load the character. // We will rewrite the free memory pointer at `0x40` later with // the allocated size. // The magic constant 0x0230 will translate "-_" + "+/". mstore(0x1f, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef") mstore(0x3f, sub("ghijklmnopqrstuvwxyz0123456789-_", mul(iszero(fileSafe), 0x0230))) // Skip the first slot, which stores the length. let ptr := add(result, 0x20) let end := add(ptr, encodedLength) // Run over the input, 3 bytes at a time. for {} 1 {} { data := add(data, 3) // Advance 3 bytes. let input := mload(data) // Write 4 bytes. Optimized for fewer stack operations. mstore8(0, mload(and(shr(18, input), 0x3F))) mstore8(1, mload(and(shr(12, input), 0x3F))) mstore8(2, mload(and(shr(6, input), 0x3F))) mstore8(3, mload(and(input, 0x3F))) mstore(ptr, mload(0x00)) ptr := add(ptr, 4) // Advance 4 bytes. if iszero(lt(ptr, end)) { break } } // Allocate the memory for the string. // Add 31 and mask with `not(31)` to round the // free memory pointer up the next multiple of 32. mstore(0x40, and(add(end, 31), not(31))) // Equivalent to `o = [0, 2, 1][dataLength % 3]`. let o := div(2, mod(dataLength, 3)) // Offset `ptr` and pad with '='. We can simply write over the end. mstore(sub(ptr, o), shl(240, 0x3d3d)) // Set `o` to zero if there is padding. o := mul(iszero(iszero(noPadding)), o) // Zeroize the slot after the string. mstore(sub(ptr, o), 0) // Write the length of the string. mstore(result, sub(encodedLength, o)) } } } /// @dev Encodes `data` using the base64 encoding described in RFC 4648. /// Equivalent to `encode(data, false, false)`. function encode(bytes memory data) internal pure returns (string memory result) { result = encode(data, false, false); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; import "./ICryptoCoaster.sol"; contract Thumbnail { bytes constant BASE = '<path class="l1" d="M.006 0h511.993v383.997H.002C-.006 263.19.006 0 .006 0Z"/><path class="l2" d="M512 229.868s-68.63 47.607-139.47 44.655c-70.842-2.952-146.81-30.585-146.81-30.585s-106.132-43.602-151.091-43.431C29.669 200.677 0 215.187 0 215.187v230.136h512z"/><path class="l3" d="M147.137 117.002c-50.043.204-93.869 28.627-98.075 75.914v158.74l417.184 16.867s-2.445-95.713-4.414-113.525c-1.968-17.812-15.591-40.98-51.71-41.324-28.638-.273-61.043 19.505-78.653 27.137-.753-.352-20.145-16.8-42.336-39.014-22.856-22.878-32.808-36.846-52.028-52.137-17.91-14.25-47.157-32.92-89.968-32.658zm3.408 16.95c1.298-.014 2.408-.006 3.3.01 14.278.27 43.839 4.066 68.817 25.388 15.679 13.383 20.343 17.772 48.813 46.607 23.333 23.633 44.779 44.23 44.779 44.23s-59.769 36.223-141.61 33.338c-21.365-.753-53.836-6.784-77.302-26.586-12.04-10.16-35.255-32.383-33.112-57.83 5.031-59.724 66.844-64.958 86.315-65.158z"/><path class="l4" d="M0 296.545s68.63 47.607 139.47 44.655c70.842-2.953 146.81-30.585 146.81-30.585s106.132-43.602 151.091-43.432c44.96.17 74.629 14.681 74.629 14.681V512H0Z"/><path class="l3" d="M157.625 128.372h6.743v157.647h-6.743z"/><path class="l3" d="M175.378 129.993h6.743V287.64h-6.743z"/><path class="l3" d="M193.131 134.176h6.743v157.647h-6.743z"/><path class="l3" d="M210.878 147.926h6.743v141.647h-6.743z"/><path class="l3" d="M228.628 160.176h6.743v123.513h-6.743z"/><path class="l3" d="M246.378 177.744h6.743v105.945h-6.743z"/><path class="l3" d="M264.128 194.789h6.743v83.195h-6.743z"/><path class="l3" d="M281.878 213h6.743v59.523h-6.743z"/><path class="l3" d="M299.628 228.239h6.743v38.944h-6.743z"/><path class="l3" d="M68.878 157.542h6.743v83.05h-6.743z"/><path class="l3" d="M86.628 143.975h6.743v123.208h-6.743z"/><path class="l3" d="M104.378 137.463h6.743v136.232h-6.743z"/><path class="l3" d="M122.128 130.951h6.743v149.257h-6.743z"/><path class="l3" d="M139.878 128.372h6.743v155.317h-6.743z"/>'; bytes constant SUN = '<circle cx="448.545" cy="71.741" r="38.217" style="fill:#fff"/>'; bytes constant SNOW = '<style>.sn{fill:#fff}</style><circle class="sn" cx="208.174" cy="102.449" r="4.848"/><circle class="sn" cx="125.499" cy="36.538" r="4.848"/><circle class="sn" cx="73.118" cy="90.464" r="7.136"/><circle class="sn" cx="349.836" cy="125.563" r="5.992"/><circle class="sn" cx="428.432" cy="26.94" r="5.992"/><circle class="sn" cx="390.254" cy="92.982" r="4.619"/><circle class="sn" cx="483.828" cy="190.385" r="4.619"/><circle class="sn" cx="473.288" cy="114.821" r="4.619"/><circle class="sn" cx="337.348" cy="226.96" r="5.992"/><circle class="sn" cx="63.308" cy="206.578" r="11.942"/><circle class="sn" cx="257.836" cy="74.299" r="5.077"/><circle class="sn" cx="288.372" cy="139.537" r="5.077"/><circle class="sn" cx="207.259" cy="16.399" r="4.848"/><circle class="sn" cx="168.013" cy="68.994" r="7.365"/><circle class="sn" cx="452.046" cy="69.223" r="7.594"/><circle class="sn" cx="417.821" cy="170.136" r="4.619"/><circle class="sn" cx="102.541" cy="304.314" r="4.619"/><circle class="sn" cx="200.622" cy="139.295" r="5.077"/><circle class="sn" cx="50.95" cy="162.409" r="7.594"/><circle class="sn" cx="257.149" cy="289.195" r="5.534"/><circle class="sn" cx="406.92" cy="226.045" r="5.534"/><circle class="sn" cx="462.303" cy="217.806" r="5.534"/><circle class="sn" cx="324.433" cy="36.538" r="7.136"/><circle class="sn" cx="350.98" cy="174.755" r="7.136"/><circle class="sn" cx="126.472" cy="257.613" r="6.221"/><circle class="sn" cx="46.602" cy="42.717" r="11.942"/><circle class="sn" cx="24.424" cy="256" r="7.365"/>'; bytes constant TREES = '<path style="fill:#97ad89" d="m473.282 208.809-3.703 21.978-3.708 21.983 2.767-.624-2.256 17.652a145.48 145.48 0 0 1 15.029 2.759l-2.895-22.644 4.081-.922-4.656-20.093zm-441.281 3.439L24.957 268.1l-5.144 40.794a82.398 82.398 0 0 0 4.218 2.275c3.654 1.814 7.361 3.515 10.959 5.435a100.553 100.553 0 0 0 6.25 3.057c1.512.68 3.031 1.33 4.558 1.976l-6.753-53.537z"/><path style="fill:#c6e9af" d="m491.066 193.394-6.209 25.508-6.205 25.509 5.608 1.209-.317 1.738-4.88 26.48a150.01 150.01 0 0 1 12.558 3.242c3.96 1.213 7.868 2.592 11.693 4.195 2.645 1.107 7.218 2.902 8.446 3.386l-2.067-18.117-3.851-33.81-3.855 33.81-.786 6.916-4.64-25.191 4.38.945-4.94-27.912zm-470.913 34.6L11.3 257.086l-8.865 29.091 6.764.688L6.1 302.758c2.887 1.739 5.775 3.48 8.688 5.181 3.065 1.792 6.103 3.658 9.285 5.23 2.256 1.12 4.524 2.207 6.78 3.315l-5.457-27.972 3.522.355-4.38-30.436zm24.488 40.38-7.41 37.993-2.37 12.142.19.095a98.76 98.76 0 0 0 6.261 3.057c2.951 1.323 5.948 2.547 8.926 3.817 3 1.194 4.667 1.87 6.012 2.392l-4.194-21.503zm468.218 25.969-.004 6.008h.692z"/>'; bytes constant SINGLE_CHEVERON = '<path class="l2" d="M8.487 0A8.487 8.487 0 0 0 0 8.487a8.487 8.487 0 0 0 8.487 8.488 8.487 8.487 0 0 0 8.488-8.488A8.487 8.487 0 0 0 8.487 0zm0 5.095c.114 0 .212.041.295.124l4.865 4.858a.407.407 0 0 1 .125.299.407.407 0 0 1-.125.298l-1.088 1.081a.404.404 0 0 1-.295.125.404.404 0 0 1-.295-.125l-3.482-3.48-3.48 3.48a.404.404 0 0 1-.296.125.404.404 0 0 1-.295-.125l-1.088-1.081a.407.407 0 0 1-.125-.298c0-.116.042-.216.125-.299L8.192 5.22a.403.403 0 0 1 .295-.124z"/>'; bytes constant DOUBLE_CHEVERON = '<path class="l2" d="M0 8.487A8.487 8.487 0 0 0-8.487 0a8.487 8.487 0 0 0-8.488 8.487 8.487 8.487 0 0 0 8.488 8.488A8.487 8.487 0 0 0 0 8.487zm-3.664 0c0 .09-.033.167-.098.232l-3.816 3.821a.32.32 0 0 1-.234.098.32.32 0 0 1-.235-.098l-.85-.855a.316.316 0 0 1-.097-.231c0-.09.033-.167.098-.232l2.735-2.735-2.735-2.734a.316.316 0 0 1-.098-.231c0-.09.033-.167.098-.232l.85-.855a.32.32 0 0 1 .234-.098c.091 0 .169.033.234.098l3.816 3.82a.316.316 0 0 1 .098.232zm-4.317 0c0 .09-.033.167-.098.232l-3.816 3.821a.32.32 0 0 1-.234.098.319.319 0 0 1-.234-.098l-.85-.855a.316.316 0 0 1-.098-.231c0-.09.033-.167.098-.232l2.735-2.735-2.735-2.734a.316.316 0 0 1-.098-.231c0-.09.033-.167.098-.232l.85-.855a.319.319 0 0 1 .234-.098c.091 0 .169.033.234.098l3.816 3.82a.317.317 0 0 1 .098.232z" transform="rotate(-90)"/>'; bytes constant FACING = '<path class="l2" d="M8.487 0A8.487 8.487 0 0 0 0 8.487a8.487 8.487 0 0 0 8.487 8.488 8.487 8.487 0 0 0 8.488-8.488A8.487 8.487 0 0 0 8.487 0zm1.48 4.337c.092 0 .17.033.235.098l3.816 3.82a.316.316 0 0 1 .097.232c0 .09-.032.167-.097.232l-3.816 3.821a.32.32 0 0 1-.234.098.32.32 0 0 1-.235-.098l-.85-.855a.316.316 0 0 1-.097-.231c0-.09.032-.167.098-.232l2.734-2.735-2.734-2.734a.316.316 0 0 1-.098-.231c0-.09.032-.167.098-.232l.85-.855a.32.32 0 0 1 .234-.098zm-4.579.9a1.445 1.445 0 0 1 0 2.89A1.445 1.445 0 0 1 3.943 6.68a1.445 1.445 0 0 1 1.445-1.445zm0 3.612a2.529 2.529 0 0 1 2.529 2.529.361.361 0 0 1-.361.36H3.22a.361.361 0 0 1-.36-.36 2.529 2.529 0 0 1 2.528-2.529z"/>'; bytes constant WANG = '<path class="l2" d="M348.918 441.374a32.079 32.079 0 0 0-32.079 32.078 32.079 32.079 0 0 0 32.079 32.08 32.079 32.079 0 0 0 32.08-32.08 32.079 32.079 0 0 0-32.08-32.078zm-12.29 13.642h24.58a2.048 2.048 0 0 1 2.05 2.05 14.339 14.339 0 0 1-28.678 0 2.048 2.048 0 0 1 2.049-2.05zm12.29 20.485a8.193 8.193 0 0 1 8.193 8.193 8.193 8.193 0 1 1-8.193-8.193z" transform="matrix(.26458 0 0 .26458 -83.83 -116.78)"/>'; bytes constant TRACK = '<path class="trackColor" d="M8.487 0A8.487 8.487 0 0 0 0 8.487a8.487 8.487 0 0 0 8.487 8.488 8.487 8.487 0 0 0 8.488-8.488A8.487 8.487 0 0 0 8.487 0zM5.188 3.312h1.5a.44.44 0 0 1 .442.441v.307h2.715v-.307a.44.44 0 0 1 .441-.441h1.5a.44.44 0 0 1 .442.441v9.468a.44.44 0 0 1-.441.442h-1.5a.44.44 0 0 1-.442-.442v-.367H7.13v.367a.44.44 0 0 1-.442.442h-1.5a.44.44 0 0 1-.441-.442V3.753a.44.44 0 0 1 .441-.441zm1.942 2.1V6.54h2.715V5.413H7.13zm0 2.481V9.02h2.715V7.893H7.13zm0 2.48v1.128h2.715v-1.127H7.13z"/>'; /** * @dev Array order * 0. Snow * 1. Forest * 2. Desert */ string[3] STYLES = [ '<style>.l1{fill:#d9eaf1}.l2{fill:#8b9a9f}.l3{fill:#bfd3da}.l4{fill:#ffffff}</style>', '<style>.l1{fill:#f2fee8}.l2{fill:#615f60}.l3{fill:#9bac8c}.l4{fill:#cce8b5}</style>', '<style>.l1{fill:#fea}.l2{fill:#ffc460}.l3{fill:#cca066}.l4{fill:#ffffda}</style>' ]; /** * @notice Build the SVG thumbnail * @param settings - Track settings struct * @return final svg as bytes */ function buildThumbnail(Settings calldata settings) external view returns(bytes memory) { // Default to SNOW bytes memory biomeExtra = SNOW; if (settings.biomeIDX == 1) biomeExtra = TREES; else if (settings.biomeIDX == 2) biomeExtra = SUN; return abi.encodePacked( '<svg preserveAspectRatio="xMidYMid meet" width="100%" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg">', STYLES[settings.biomeIDX], BASE, biomeExtra, addIcons(settings), '</svg>' ); } /** * @notice Pack att the icons into SVGs * @param settings - Track settings struct * @return icons as bytes */ function addIcons(Settings memory settings) internal pure returns(bytes memory) { return abi.encodePacked( '<svg x="20px" y="446"><g transform="scale(3, 3)">', '<svg x="0">', buildSize(settings.scale), '</svg>', '<svg x="20">', buildTrackColor(settings.color.iconHex), '</svg>', '<svg x="40">', buildSpeed(settings.speed), '</svg>', '<svg x="60">', buildFacing(settings.flip), '</svg>', '</g></svg>' ); } /** * @notice Handle track color styling for SVG * @param colorHex - Color settings * @return track color icon path with styling as bytes */ function buildTrackColor(string memory colorHex) internal pure returns(bytes memory) { return abi.encodePacked( '<style>.trackColor{fill:', colorHex, '}</style>', TRACK ); } /** * @notice Handle train orientation styling for SVG * @param flip - Train orientation settings * @return train orientation icon path with styling as bytes */ function buildFacing(uint256 flip) internal pure returns(bytes memory) { if (flip == 1) { return abi.encodePacked( '<g transform="scale(-1,1) translate(-16.975,0)">', FACING, '</g>' ); } if (flip == 2) return WANG; return FACING; } /** * @notice Handle world scale styling for SVG * @param scale - Scale settings * @return world scale icon path with styling as bytes */ function buildSize(uint256 scale) internal pure returns(bytes memory) { return (scale == 1) ? SINGLE_CHEVERON : DOUBLE_CHEVERON; } /** * @notice Handle train speed styling for SVG * @param speed - Speed settings * @return train speed icon path with styling as bytes */ function buildSpeed(uint256 speed) internal pure returns(bytes memory) { bytes memory icon = (speed == 1) ? SINGLE_CHEVERON : DOUBLE_CHEVERON; return abi.encodePacked( '<g transform="rotate(90 8.4875 8.4875)">', icon, '</g>' ); } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721A.sol'; /** * @dev Interface of ERC721 token receiver. */ interface ERC721A__IERC721Receiver { function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } /** * @title ERC721A * * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721) * Non-Fungible Token Standard, including the Metadata extension. * Optimized for lower gas during batch mints. * * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...) * starting from `_startTokenId()`. * * Assumptions: * * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply. * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256). */ contract ERC721A is IERC721A { // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364). struct TokenApprovalRef { address value; } // ============================================================= // CONSTANTS // ============================================================= // Mask of an entry in packed address data. uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1; // The bit position of `numberMinted` in packed address data. uint256 private constant _BITPOS_NUMBER_MINTED = 64; // The bit position of `numberBurned` in packed address data. uint256 private constant _BITPOS_NUMBER_BURNED = 128; // The bit position of `aux` in packed address data. uint256 private constant _BITPOS_AUX = 192; // Mask of all 256 bits in packed address data except the 64 bits for `aux`. uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1; // The bit position of `startTimestamp` in packed ownership. uint256 private constant _BITPOS_START_TIMESTAMP = 160; // The bit mask of the `burned` bit in packed ownership. uint256 private constant _BITMASK_BURNED = 1 << 224; // The bit position of the `nextInitialized` bit in packed ownership. uint256 private constant _BITPOS_NEXT_INITIALIZED = 225; // The bit mask of the `nextInitialized` bit in packed ownership. uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225; // The bit position of `extraData` in packed ownership. uint256 private constant _BITPOS_EXTRA_DATA = 232; // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`. uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1; // The mask of the lower 160 bits for addresses. uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1; // The maximum `quantity` that can be minted with {_mintERC2309}. // This limit is to prevent overflows on the address data entries. // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309} // is required to cause an overflow, which is unrealistic. uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000; // The `Transfer` event signature is given by: // `keccak256(bytes("Transfer(address,address,uint256)"))`. bytes32 private constant _TRANSFER_EVENT_SIGNATURE = 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef; // ============================================================= // STORAGE // ============================================================= // The next token ID to be minted. uint256 private _currentIndex; // The number of tokens burned. uint256 private _burnCounter; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. // See {_packedOwnershipOf} implementation for details. // // Bits Layout: // - [0..159] `addr` // - [160..223] `startTimestamp` // - [224] `burned` // - [225] `nextInitialized` // - [232..255] `extraData` mapping(uint256 => uint256) private _packedOwnerships; // Mapping owner address to address data. // // Bits Layout: // - [0..63] `balance` // - [64..127] `numberMinted` // - [128..191] `numberBurned` // - [192..255] `aux` mapping(address => uint256) private _packedAddressData; // Mapping from token ID to approved address. mapping(uint256 => TokenApprovalRef) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // ============================================================= // CONSTRUCTOR // ============================================================= constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; _currentIndex = _startTokenId(); } // ============================================================= // TOKEN COUNTING OPERATIONS // ============================================================= /** * @dev Returns the starting token ID. * To change the starting token ID, please override this function. */ function _startTokenId() internal view virtual returns (uint256) { return 0; } /** * @dev Returns the next token ID to be minted. */ function _nextTokenId() internal view virtual returns (uint256) { return _currentIndex; } /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() public view virtual override returns (uint256) { // Counter underflow is impossible as _burnCounter cannot be incremented // more than `_currentIndex - _startTokenId()` times. unchecked { return _currentIndex - _burnCounter - _startTokenId(); } } /** * @dev Returns the total amount of tokens minted in the contract. */ function _totalMinted() internal view virtual returns (uint256) { // Counter underflow is impossible as `_currentIndex` does not decrement, // and it is initialized to `_startTokenId()`. unchecked { return _currentIndex - _startTokenId(); } } /** * @dev Returns the total number of tokens burned. */ function _totalBurned() internal view virtual returns (uint256) { return _burnCounter; } // ============================================================= // ADDRESS DATA OPERATIONS // ============================================================= /** * @dev Returns the number of tokens in `owner`'s account. */ function balanceOf(address owner) public view virtual override returns (uint256) { if (owner == address(0)) revert BalanceQueryForZeroAddress(); return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens minted by `owner`. */ function _numberMinted(address owner) internal view returns (uint256) { return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens burned by or on behalf of `owner`. */ function _numberBurned(address owner) internal view returns (uint256) { return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). */ function _getAux(address owner) internal view returns (uint64) { return uint64(_packedAddressData[owner] >> _BITPOS_AUX); } /** * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). * If there are multiple variables, please pack them into a uint64. */ function _setAux(address owner, uint64 aux) internal virtual { uint256 packed = _packedAddressData[owner]; uint256 auxCasted; // Cast `aux` with assembly to avoid redundant masking. assembly { auxCasted := aux } packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX); _packedAddressData[owner] = packed; } // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { // The interface IDs are constants representing the first 4 bytes // of the XOR of all function selectors in the interface. // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165) // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`) return interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165. interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721. interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata. } // ============================================================= // IERC721Metadata // ============================================================= /** * @dev Returns the token collection name. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the token collection symbol. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { if (!_exists(tokenId)) revert URIQueryForNonexistentToken(); string memory baseURI = _baseURI(); return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : ''; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, it can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ''; } // ============================================================= // OWNERSHIPS OPERATIONS // ============================================================= /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { return address(uint160(_packedOwnershipOf(tokenId))); } /** * @dev Gas spent here starts off proportional to the maximum mint batch size. * It gradually moves to O(1) as tokens get transferred around over time. */ function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) { return _unpackedOwnership(_packedOwnershipOf(tokenId)); } /** * @dev Returns the unpacked `TokenOwnership` struct at `index`. */ function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) { return _unpackedOwnership(_packedOwnerships[index]); } /** * @dev Initializes the ownership slot minted at `index` for efficiency purposes. */ function _initializeOwnershipAt(uint256 index) internal virtual { if (_packedOwnerships[index] == 0) { _packedOwnerships[index] = _packedOwnershipOf(index); } } /** * Returns the packed ownership data of `tokenId`. */ function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) { uint256 curr = tokenId; unchecked { if (_startTokenId() <= curr) if (curr < _currentIndex) { uint256 packed = _packedOwnerships[curr]; // If not burned. if (packed & _BITMASK_BURNED == 0) { // Invariant: // There will always be an initialized ownership slot // (i.e. `ownership.addr != address(0) && ownership.burned == false`) // before an unintialized ownership slot // (i.e. `ownership.addr == address(0) && ownership.burned == false`) // Hence, `curr` will not underflow. // // We can directly compare the packed value. // If the address is zero, packed will be zero. while (packed == 0) { packed = _packedOwnerships[--curr]; } return packed; } } } revert OwnerQueryForNonexistentToken(); } /** * @dev Returns the unpacked `TokenOwnership` struct from `packed`. */ function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) { ownership.addr = address(uint160(packed)); ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP); ownership.burned = packed & _BITMASK_BURNED != 0; ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA); } /** * @dev Packs ownership data into a single uint256. */ function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) { assembly { // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. owner := and(owner, _BITMASK_ADDRESS) // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`. result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)) } } /** * @dev Returns the `nextInitialized` flag set if `quantity` equals 1. */ function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) { // For branchless setting of the `nextInitialized` flag. assembly { // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`. result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1)) } } // ============================================================= // APPROVAL OPERATIONS // ============================================================= /** * @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) public payable virtual override { address owner = ownerOf(tokenId); if (_msgSenderERC721A() != owner) if (!isApprovedForAll(owner, _msgSenderERC721A())) { revert ApprovalCallerNotOwnerNorApproved(); } _tokenApprovals[tokenId].value = to; emit Approval(owner, to, tokenId); } /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken(); return _tokenApprovals[tokenId].value; } /** * @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) public virtual override { _operatorApprovals[_msgSenderERC721A()][operator] = approved; emit ApprovalForAll(_msgSenderERC721A(), operator, approved); } /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted. See {_mint}. */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _startTokenId() <= tokenId && tokenId < _currentIndex && // If within bounds, _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned. } /** * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`. */ function _isSenderApprovedOrOwner( address approvedAddress, address owner, address msgSender ) private pure returns (bool result) { assembly { // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. owner := and(owner, _BITMASK_ADDRESS) // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean. msgSender := and(msgSender, _BITMASK_ADDRESS) // `msgSender == owner || msgSender == approvedAddress`. result := or(eq(msgSender, owner), eq(msgSender, approvedAddress)) } } /** * @dev Returns the storage slot and value for the approved address of `tokenId`. */ function _getApprovedSlotAndAddress(uint256 tokenId) private view returns (uint256 approvedAddressSlot, address approvedAddress) { TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId]; // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`. assembly { approvedAddressSlot := tokenApproval.slot approvedAddress := sload(approvedAddressSlot) } } // ============================================================= // TRANSFER OPERATIONS // ============================================================= /** * @dev Transfers `tokenId` from `from` to `to`. * * 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 ) public payable virtual override { uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner(); (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId); // The nested ifs save around 20+ gas over a compound boolean condition. if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved(); if (to == address(0)) revert TransferToZeroAddress(); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner. assembly { if approvedAddress { // This is equivalent to `delete _tokenApprovals[tokenId]`. sstore(approvedAddressSlot, 0) } } // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. unchecked { // We can directly increment and decrement the balances. --_packedAddressData[from]; // Updates: `balance -= 1`. ++_packedAddressData[to]; // Updates: `balance += 1`. // Updates: // - `address` to the next owner. // - `startTimestamp` to the timestamp of transfering. // - `burned` to `false`. // - `nextInitialized` to `true`. _packedOwnerships[tokenId] = _packOwnershipData( to, _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked) ); // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { uint256 nextTokenId = tokenId + 1; // If the next slot's address is zero and not burned (i.e. packed value is zero). if (_packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != _currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. _packedOwnerships[nextTokenId] = prevOwnershipPacked; } } } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public payable virtual override { safeTransferFrom(from, to, tokenId, ''); } /** * @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 memory _data ) public payable virtual override { transferFrom(from, to, tokenId); if (to.code.length != 0) if (!_checkContractOnERC721Received(from, to, tokenId, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } /** * @dev Hook that is called before a set of serially-ordered token IDs * are about to be transferred. This includes minting. * And also called before burning one token. * * `startTokenId` - the first token ID to be transferred. * `quantity` - the amount to be transferred. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Hook that is called after a set of serially-ordered token IDs * have been transferred. This includes minting. * And also called after one token has been burned. * * `startTokenId` - the first token ID to be transferred. * `quantity` - the amount to be transferred. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been * transferred to `to`. * - When `from` is zero, `tokenId` has been minted for `to`. * - When `to` is zero, `tokenId` has been burned by `from`. * - `from` and `to` are never both zero. */ function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract. * * `from` - Previous owner of the given token ID. * `to` - Target address that will receive the token. * `tokenId` - Token ID to be transferred. * `_data` - Optional data to send along with the call. * * Returns whether the call correctly returned the expected magic value. */ function _checkContractOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns ( bytes4 retval ) { return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert TransferToNonERC721ReceiverImplementer(); } else { assembly { revert(add(32, reason), mload(reason)) } } } } // ============================================================= // MINT OPERATIONS // ============================================================= /** * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {Transfer} event for each mint. */ function _mint(address to, uint256 quantity) internal virtual { uint256 startTokenId = _currentIndex; if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // `balance` and `numberMinted` have a maximum limit of 2**64. // `tokenId` has a maximum limit of 2**256. unchecked { // Updates: // - `balance += quantity`. // - `numberMinted += quantity`. // // We can directly add to the `balance` and `numberMinted`. _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `quantity == 1`. _packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); uint256 toMasked; uint256 end = startTokenId + quantity; // Use assembly to loop and emit the `Transfer` event for gas savings. // The duplicated `log4` removes an extra check and reduces stack juggling. // The assembly, together with the surrounding Solidity code, have been // delicately arranged to nudge the compiler into producing optimized opcodes. assembly { // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. toMasked := and(to, _BITMASK_ADDRESS) // Emit the `Transfer` event. log4( 0, // Start of data (0, since no data). 0, // End of data (0, since no data). _TRANSFER_EVENT_SIGNATURE, // Signature. 0, // `address(0)`. toMasked, // `to`. startTokenId // `tokenId`. ) // The `iszero(eq(,))` check ensures that large values of `quantity` // that overflows uint256 will make the loop run out of gas. // The compiler will optimize the `iszero` away for performance. for { let tokenId := add(startTokenId, 1) } iszero(eq(tokenId, end)) { tokenId := add(tokenId, 1) } { // Emit the `Transfer` event. Similar to above. log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId) } } if (toMasked == 0) revert MintToZeroAddress(); _currentIndex = end; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * This function is intended for efficient minting only during contract creation. * * It emits only one {ConsecutiveTransfer} as defined in * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309), * instead of a sequence of {Transfer} event(s). * * Calling this function outside of contract creation WILL make your contract * non-compliant with the ERC721 standard. * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309 * {ConsecutiveTransfer} event is only permissible during contract creation. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {ConsecutiveTransfer} event. */ function _mintERC2309(address to, uint256 quantity) internal virtual { uint256 startTokenId = _currentIndex; if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are unrealistic due to the above check for `quantity` to be below the limit. unchecked { // Updates: // - `balance += quantity`. // - `numberMinted += quantity`. // // We can directly add to the `balance` and `numberMinted`. _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `quantity == 1`. _packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to); _currentIndex = startTokenId + quantity; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Safely mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called for each safe transfer. * - `quantity` must be greater than 0. * * See {_mint}. * * Emits a {Transfer} event for each mint. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal virtual { _mint(to, quantity); unchecked { if (to.code.length != 0) { uint256 end = _currentIndex; uint256 index = end - quantity; do { if (!_checkContractOnERC721Received(address(0), to, index++, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } while (index < end); // Reentrancy protection. if (_currentIndex != end) revert(); } } } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal virtual { _safeMint(to, quantity, ''); } // ============================================================= // BURN OPERATIONS // ============================================================= /** * @dev Equivalent to `_burn(tokenId, false)`. */ function _burn(uint256 tokenId) internal virtual { _burn(tokenId, false); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId, bool approvalCheck) internal virtual { uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); address from = address(uint160(prevOwnershipPacked)); (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId); if (approvalCheck) { // The nested ifs save around 20+ gas over a compound boolean condition. if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved(); } _beforeTokenTransfers(from, address(0), tokenId, 1); // Clear approvals from the previous owner. assembly { if approvedAddress { // This is equivalent to `delete _tokenApprovals[tokenId]`. sstore(approvedAddressSlot, 0) } } // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. unchecked { // Updates: // - `balance -= 1`. // - `numberBurned += 1`. // // We can directly decrement the balance, and increment the number burned. // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`. _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1; // Updates: // - `address` to the last owner. // - `startTimestamp` to the timestamp of burning. // - `burned` to `true`. // - `nextInitialized` to `true`. _packedOwnerships[tokenId] = _packOwnershipData( from, (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked) ); // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { uint256 nextTokenId = tokenId + 1; // If the next slot's address is zero and not burned (i.e. packed value is zero). if (_packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != _currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. _packedOwnerships[nextTokenId] = prevOwnershipPacked; } } } } emit Transfer(from, address(0), tokenId); _afterTokenTransfers(from, address(0), tokenId, 1); // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times. unchecked { _burnCounter++; } } // ============================================================= // EXTRA DATA OPERATIONS // ============================================================= /** * @dev Directly sets the extra data for the ownership data `index`. */ function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual { uint256 packed = _packedOwnerships[index]; if (packed == 0) revert OwnershipNotInitializedForExtraData(); uint256 extraDataCasted; // Cast `extraData` with assembly to avoid redundant masking. assembly { extraDataCasted := extraData } packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA); _packedOwnerships[index] = packed; } /** * @dev Called during each token transfer to set the 24bit `extraData` field. * Intended to be overridden by the cosumer contract. * * `previousExtraData` - the value of `extraData` before transfer. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _extraData( address from, address to, uint24 previousExtraData ) internal view virtual returns (uint24) {} /** * @dev Returns the next extra data for the packed ownership data. * The returned result is shifted into position. */ function _nextExtraData( address from, address to, uint256 prevOwnershipPacked ) private view returns (uint256) { uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA); return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA; } // ============================================================= // OTHER OPERATIONS // ============================================================= /** * @dev Returns the message sender (defaults to `msg.sender`). * * If you are writing GSN compatible contracts, you need to override this function. */ function _msgSenderERC721A() internal view virtual returns (address) { return msg.sender; } /** * @dev Converts a uint256 to its ASCII string decimal representation. */ function _toString(uint256 value) internal pure virtual returns (string memory str) { assembly { // The maximum value of a uint256 contains 78 digits (1 byte per digit), but // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned. // We will need 1 word for the trailing zeros padding, 1 word for the length, // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0. let m := add(mload(0x40), 0xa0) // Update the free memory pointer to allocate. mstore(0x40, m) // Assign the `str` to the end. str := sub(m, 0x20) // Zeroize the slot after the string. mstore(str, 0) // Cache the end of the memory to calculate the length later. let end := str // We write the string from rightmost digit to leftmost digit. // The following is essentially a do-while loop that also handles the zero case. // prettier-ignore for { let temp := value } 1 {} { str := sub(str, 1) // Write the character to the pointer. // The ASCII index of the '0' character is 48. mstore8(str, add(48, mod(temp, 10))) // Keep dividing `temp` until zero. temp := div(temp, 10) // prettier-ignore if iszero(temp) { break } } let length := sub(end, str) // Move the pointer 32 bytes leftwards to make room for the length. str := sub(str, 0x20) // Store the length. mstore(str, length) } } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721ABurnable.sol'; import '../ERC721A.sol'; /** * @title ERC721ABurnable. * * @dev ERC721A token that can be irreversibly burned (destroyed). */ abstract contract ERC721ABurnable is ERC721A, IERC721ABurnable { /** * @dev Burns `tokenId`. See {ERC721A-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) public virtual override { _burn(tokenId, true); } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import './IERC721AQueryable.sol'; import '../ERC721A.sol'; /** * @title ERC721AQueryable. * * @dev ERC721A subclass with convenience query functions. */ abstract contract ERC721AQueryable is ERC721A, IERC721AQueryable { /** * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. * * If the `tokenId` is out of bounds: * * - `addr = address(0)` * - `startTimestamp = 0` * - `burned = false` * - `extraData = 0` * * If the `tokenId` is burned: * * - `addr = <Address of owner before token was burned>` * - `startTimestamp = <Timestamp when token was burned>` * - `burned = true` * - `extraData = <Extra data when token was burned>` * * Otherwise: * * - `addr = <Address of owner>` * - `startTimestamp = <Timestamp of start of ownership>` * - `burned = false` * - `extraData = <Extra data at start of ownership>` */ function explicitOwnershipOf(uint256 tokenId) public view virtual override returns (TokenOwnership memory) { TokenOwnership memory ownership; if (tokenId < _startTokenId() || tokenId >= _nextTokenId()) { return ownership; } ownership = _ownershipAt(tokenId); if (ownership.burned) { return ownership; } return _ownershipOf(tokenId); } /** * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. * See {ERC721AQueryable-explicitOwnershipOf} */ function explicitOwnershipsOf(uint256[] calldata tokenIds) external view virtual override returns (TokenOwnership[] memory) { unchecked { uint256 tokenIdsLength = tokenIds.length; TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength); for (uint256 i; i != tokenIdsLength; ++i) { ownerships[i] = explicitOwnershipOf(tokenIds[i]); } return ownerships; } } /** * @dev Returns an array of token IDs owned by `owner`, * in the range [`start`, `stop`) * (i.e. `start <= tokenId < stop`). * * This function allows for tokens to be queried if the collection * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. * * Requirements: * * - `start < stop` */ function tokensOfOwnerIn( address owner, uint256 start, uint256 stop ) external view virtual override returns (uint256[] memory) { unchecked { if (start >= stop) revert InvalidQueryRange(); uint256 tokenIdsIdx; uint256 stopLimit = _nextTokenId(); // Set `start = max(start, _startTokenId())`. if (start < _startTokenId()) { start = _startTokenId(); } // Set `stop = min(stop, stopLimit)`. if (stop > stopLimit) { stop = stopLimit; } uint256 tokenIdsMaxLength = balanceOf(owner); // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`, // to cater for cases where `balanceOf(owner)` is too big. if (start < stop) { uint256 rangeLength = stop - start; if (rangeLength < tokenIdsMaxLength) { tokenIdsMaxLength = rangeLength; } } else { tokenIdsMaxLength = 0; } uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength); if (tokenIdsMaxLength == 0) { return tokenIds; } // We need to call `explicitOwnershipOf(start)`, // because the slot at `start` may not be initialized. TokenOwnership memory ownership = explicitOwnershipOf(start); address currOwnershipAddr; // If the starting slot exists (i.e. not burned), initialize `currOwnershipAddr`. // `ownership.address` will not be zero, as `start` is clamped to the valid token ID range. if (!ownership.burned) { currOwnershipAddr = ownership.addr; } for (uint256 i = start; i != stop && tokenIdsIdx != tokenIdsMaxLength; ++i) { ownership = _ownershipAt(i); if (ownership.burned) { continue; } if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { tokenIds[tokenIdsIdx++] = i; } } // Downsize the array to fit. assembly { mstore(tokenIds, tokenIdsIdx) } return tokenIds; } } /** * @dev Returns an array of token IDs owned by `owner`. * * This function scans the ownership mapping and is O(`totalSupply`) in complexity. * It is meant to be called off-chain. * * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into * multiple smaller scans if the collection is large enough to cause * an out-of-gas error (10K collections should be fine). */ function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) { unchecked { uint256 tokenIdsIdx; address currOwnershipAddr; uint256 tokenIdsLength = balanceOf(owner); uint256[] memory tokenIds = new uint256[](tokenIdsLength); TokenOwnership memory ownership; for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) { ownership = _ownershipAt(i); if (ownership.burned) { continue; } if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { tokenIds[tokenIdsIdx++] = i; } } return tokenIds; } } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import '../IERC721A.sol'; /** * @dev Interface of ERC721ABurnable. */ interface IERC721ABurnable is IERC721A { /** * @dev Burns `tokenId`. See {ERC721A-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) external; }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import '../IERC721A.sol'; /** * @dev Interface of ERC721AQueryable. */ interface IERC721AQueryable is IERC721A { /** * Invalid query range (`start` >= `stop`). */ error InvalidQueryRange(); /** * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. * * If the `tokenId` is out of bounds: * * - `addr = address(0)` * - `startTimestamp = 0` * - `burned = false` * - `extraData = 0` * * If the `tokenId` is burned: * * - `addr = <Address of owner before token was burned>` * - `startTimestamp = <Timestamp when token was burned>` * - `burned = true` * - `extraData = <Extra data when token was burned>` * * Otherwise: * * - `addr = <Address of owner>` * - `startTimestamp = <Timestamp of start of ownership>` * - `burned = false` * - `extraData = <Extra data at start of ownership>` */ function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory); /** * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. * See {ERC721AQueryable-explicitOwnershipOf} */ function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory); /** * @dev Returns an array of token IDs owned by `owner`, * in the range [`start`, `stop`) * (i.e. `start <= tokenId < stop`). * * This function allows for tokens to be queried if the collection * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. * * Requirements: * * - `start < stop` */ function tokensOfOwnerIn( address owner, uint256 start, uint256 stop ) external view returns (uint256[] memory); /** * @dev Returns an array of token IDs owned by `owner`. * * This function scans the ownership mapping and is O(`totalSupply`) in complexity. * It is meant to be called off-chain. * * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into * multiple smaller scans if the collection is large enough to cause * an out-of-gas error (10K collections should be fine). */ function tokensOfOwner(address owner) external view returns (uint256[] memory); }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; /** * @dev Interface of ERC721A. */ interface IERC721A { /** * The caller must own the token or be an approved operator. */ error ApprovalCallerNotOwnerNorApproved(); /** * The token does not exist. */ error ApprovalQueryForNonexistentToken(); /** * Cannot query the balance for the zero address. */ error BalanceQueryForZeroAddress(); /** * Cannot mint to the zero address. */ error MintToZeroAddress(); /** * The quantity of tokens minted must be more than zero. */ error MintZeroQuantity(); /** * The token does not exist. */ error OwnerQueryForNonexistentToken(); /** * The caller must own the token or be an approved operator. */ error TransferCallerNotOwnerNorApproved(); /** * The token must be owned by `from`. */ error TransferFromIncorrectOwner(); /** * Cannot safely transfer to a contract that does not implement the * ERC721Receiver interface. */ error TransferToNonERC721ReceiverImplementer(); /** * Cannot transfer to the zero address. */ error TransferToZeroAddress(); /** * The token does not exist. */ error URIQueryForNonexistentToken(); /** * The `quantity` minted with ERC2309 exceeds the safety limit. */ error MintERC2309QuantityExceedsLimit(); /** * The `extraData` cannot be set on an unintialized ownership slot. */ error OwnershipNotInitializedForExtraData(); // ============================================================= // STRUCTS // ============================================================= struct TokenOwnership { // The address of the owner. address addr; // Stores the start time of ownership with minimal overhead for tokenomics. uint64 startTimestamp; // Whether the token has been burned. bool burned; // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}. uint24 extraData; } // ============================================================= // TOKEN COUNTERS // ============================================================= /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() external view returns (uint256); // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); // ============================================================= // IERC721 // ============================================================= /** * @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, bytes calldata data ) external payable; /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external payable; /** * @dev Transfers `tokenId` 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 payable; /** * @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 payable; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} * for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll(address owner, address operator) external view returns (bool); // ============================================================= // IERC721Metadata // ============================================================= /** * @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); // ============================================================= // IERC2309 // ============================================================= /** * @dev Emitted when tokens in `fromTokenId` to `toTokenId` * (inclusive) is transferred from `from` to `to`, as defined in the * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard. * * See {_mintERC2309} for more details. */ event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to); }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
Contract Security Audit
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eMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"name":"updateMintPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"withdrawAllERC20","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : name (string): Crypto Coaster
Arg [1] : symbol (string): RIDE
Arg [2] : supply (uint256): 2000
Arg [3] : ethfsFileStorageAddress (address): 0xFc7453dA7bF4d0c739C1c53da57b3636dAb0e11e
Arg [4] : scriptyStorageAddress (address): 0x096451F43800f207FC32B4FF86F286EdaF736eE3
Arg [5] : scriptyBuilderAddress (address): 0x16b727a2Fc9322C724F4Bc562910c99a5edA5084
Arg [6] : thumbnailAddress (address): 0x684f40493611821587D032bC30aBd41E141F32Fb
-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [2] : 00000000000000000000000000000000000000000000000000000000000007d0
Arg [3] : 000000000000000000000000fc7453da7bf4d0c739c1c53da57b3636dab0e11e
Arg [4] : 000000000000000000000000096451f43800f207fc32b4ff86f286edaf736ee3
Arg [5] : 00000000000000000000000016b727a2fc9322c724f4bc562910c99a5eda5084
Arg [6] : 000000000000000000000000684f40493611821587d032bc30abd41e141f32fb
Arg [7] : 000000000000000000000000000000000000000000000000000000000000000e
Arg [8] : 43727970746f20436f6173746572000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [10] : 5249444500000000000000000000000000000000000000000000000000000000
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