0x83...a40D
ChiliBangs
Chili
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此合同的源代码已经过验证！
合同元数据
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0.8.19+commit.7dd6d404
语言
Solidity
// SPDX-License-Identifier: MIT
/**
██████╗██╗ ██╗██╗██╗ ██╗ ██████╗ █████╗ ███╗ ██╗ ██████╗ ███████╗
██╔════╝██║ ██║██║██║ ██║ ██╔══██╗██╔══██╗████╗ ██║██╔════╝ ██╔════╝
██║ ███████║██║██║ ██║ ██████╔╝███████║██╔██╗ ██║██║ ███╗███████╗
██║ ██╔══██║██║██║ ██║ ██╔══██╗██╔══██║██║╚██╗██║██║ ██║╚════██║
╚██████╗██║ ██║██║███████╗██║ ██████╔╝██║ ██║██║ ╚████║╚██████╔╝███████║
╚═════╝╚═╝ ╚═╝╚═╝╚══════╝╚═╝ ╚═════╝ ╚═╝ ╚═╝╚═╝ ╚═══╝ ╚═════╝ ╚══════╝
**/
pragma solidity ^0.8.4;
import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import 'base64-sol/base64.sol';
import "./IChiliRenderer.sol";
import "./ChiliRenderer.sol";
/// @title Chilibangs
/// @author @chilibangs_
/// @notice Chilibangs is a 100% onchain collection
contract Chili is ChiliRenderer, ERC721A, Ownable, ReentrancyGuard {
uint256 public MAX_TOKEN_SUPPLY = 10000;
uint256 public mintPrice = 0.005 ether;
enum MintStatus {
CLOSED, // 0
WHITELIST, // 1
PUBLIC // 2
}
// mint pricing
MintStatus public mintStatus = MintStatus.CLOSED;
uint256 public maxTokensClaimableWhitelistPerWallet = 1;
uint256 public maxTokensClaimableWhitelistOverall = 3400;
uint256 public maxTokensOwnableInWallet = 100;
uint256 public numAlreadyMintedInAllowlist = 0;
// character data
mapping(uint256 => uint256) public seeds;
// contracts
IChiliRenderer public contractRenderer;
bytes32 public merkleRoot;
address private constant WITHDRAWAL_ADDRESS_1 = 0x7daB7E71DD0AF5fF5bc66fBD953a09421E78c1ef;
address private constant WITHDRAWAL_ADDRESS_2 = 0x2861AFE1F71A9f6A8Aef7d577DE677cb6433ddC9;
address private constant WITHDRAWAL_ADDRESS_3 = 0xc0d236F98F904589436aC0a24bfB99851acB0534;
uint256 private constant WITHDRAWAL_PERCENTAGE_1 = 15;
uint256 private constant WITHDRAWAL_PERCENTAGE_2 = 20;
uint256 private constant WITHDRAWAL_PERCENTAGE_3 = 65;
constructor() ERC721A("ChiliBangs", "Chili") {
contractRenderer = IChiliRenderer(this);
}
modifier verifyTokenId(uint256 tokenId) {
require(tokenId >= _startTokenId() && tokenId <= _totalMinted(), "Invalid tokenId");
_;
}
modifier verifySupply(uint256 numToMint) {
require(numToMint > 0, "Mint at least 1");
require(_totalMinted() + numToMint <= MAX_TOKEN_SUPPLY, "Overcap");
_;
}
// randomize seed
function _saveNewRandomSeed(uint256 tokenId) private {
seeds[tokenId] = uint256(keccak256(abi.encodePacked(blockhash(block.number - 1), tokenId, msg.sender)));
}
function _startTokenId() override internal pure virtual returns (uint256) {
return 1;
}
function _mintChili(address to, uint256 numToMint) verifySupply(numToMint) private {
uint256 startTokenId = _startTokenId() + _totalMinted();
for(uint256 tokenId = startTokenId; tokenId < startTokenId+numToMint; tokenId++) {
_saveNewRandomSeed(tokenId);
}
_safeMint(to, numToMint);
}
function reserveChili(address to, uint256 numToMint) external onlyOwner {
_mintChili(to, numToMint);
}
function reserveChiliMany(address[] calldata recipients, uint256 numToMint) external onlyOwner {
uint256 num = recipients.length;
require(num > 0);
for (uint256 i = 0; i < num; ++i) {
_mintChili(recipients[i], numToMint);
}
}
/// @notice Mint chilis
/// @param numToMint The number of chilis to mint
function publicMintChili(uint256 numToMint) external payable {
require(mintStatus == MintStatus.PUBLIC, "Public mint closed");
require(msg.value >= _getPrice(numToMint), "Incorrect payable" );
// check max mint
require(_numberMinted(msg.sender) + numToMint <= maxTokensOwnableInWallet, "Exceeds max mints");
_mintChili(msg.sender, numToMint);
}
// taken from 'ERC721AQueryable.sol'
function tokensOfOwner(address owner) external view 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;
}
}
function _getPrice(uint256 numPayable) private view returns (uint256) {
return numPayable * mintPrice;
}
///////////////////////////
// -- MERKLE --
///////////////////////////
function allowListed(address _wallet, bytes32[] calldata _proof)
public
view
returns (bool)
{
return
MerkleProof.verify(
_proof,
merkleRoot,
keccak256(abi.encodePacked(_wallet))
);
}
function setMerkleRoot(bytes32 _newMerkleRoot) external onlyOwner {
merkleRoot = _newMerkleRoot;
}
function mintAllowList(bytes32[] calldata _proof) external {
require(mintStatus == MintStatus.WHITELIST || mintStatus == MintStatus.PUBLIC, "Minting disabled");
require(allowListed(msg.sender, _proof), "You are not on the allowlist");
require(_numberMinted(msg.sender) < maxTokensClaimableWhitelistPerWallet, "Exceeds max mints per wallet");
require(numAlreadyMintedInAllowlist < maxTokensClaimableWhitelistOverall, "Exceeds overall allowlist");
_mintChili(msg.sender, 1);
numAlreadyMintedInAllowlist++;
}
///////////////////////////
// -- GETTERS/SETTERS --
///////////////////////////
function getNumMinted() external view returns (uint256) {
return _totalMinted();
}
function setPricing(uint256 price) external onlyOwner {
mintPrice = price;
}
function setTokenMaxPerWallet(uint256 maxTokens) external onlyOwner {
maxTokensOwnableInWallet = maxTokens;
}
function getPrice(uint256 numToMint) external view returns (uint256) {
return _getPrice(numToMint);
}
function setMaxTokenSupply(uint256 _maxTokenSupply) external onlyOwner {
require(_maxTokenSupply >= _totalMinted(), "Cannot set lower than current supply");
MAX_TOKEN_SUPPLY = _maxTokenSupply;
}
function setAllowlistMaxMints(uint256 _max) external onlyOwner {
maxTokensClaimableWhitelistOverall = _max;
}
function setAllowlistMaxMintsWhitelist(uint256 _max) external onlyOwner {
maxTokensClaimableWhitelistPerWallet = _max;
}
function setMintStatus(uint256 _status) external onlyOwner {
mintStatus = MintStatus(_status);
}
function setContractRenderer(address newAddress) external onlyOwner {
contractRenderer = IChiliRenderer(newAddress);
}
function numberMinted(address addr) external view returns(uint256){
return _numberMinted(addr);
}
///////////////////////////
// -- TOKEN URI --
///////////////////////////
function _tokenURI(uint256 tokenId) private view returns (string memory) {
uint256 seed = seeds[tokenId];
// get image
string memory image = contractRenderer.getSVG(seed);
string memory json = Base64.encode(
bytes(string(
abi.encodePacked(
'{"name": ', '"ChiliBangs #', Strings.toString(tokenId),'",',
'"description": "Spice up your web3 experience",',
'"attributes":[',
contractRenderer.getTraitsMetadata(seed),
'{"trait_type":"Caliente", "value":', '"True"','}'
'],',
'"image": "data:image/svg+xml;base64,', Base64.encode(bytes(image)), '"}'
)
))
);
return string(abi.encodePacked('data:application/json;base64,', json));
}
function tokenURI(uint256 tokenId) override(ERC721A) public view verifyTokenId(tokenId) returns (string memory) {
return _tokenURI(tokenId);
}
function _randStat(uint256 seed, uint256 div, uint256 min, uint256 max) private pure returns (uint256) {
return min + (seed/div) % (max-min);
}
function withdraw() public nonReentrant {
uint256 contractBalance = address(this).balance;
uint256 amount1 = contractBalance * WITHDRAWAL_PERCENTAGE_1 / 100;
uint256 amount2 = contractBalance * WITHDRAWAL_PERCENTAGE_2 / 100;
uint256 amount3 = contractBalance * WITHDRAWAL_PERCENTAGE_3 / 100;
(bool success1,) = payable(WITHDRAWAL_ADDRESS_1).call{ value: amount1 }("");
(bool success2,) = payable(WITHDRAWAL_ADDRESS_2).call{ value: amount2 }("");
(bool success3,) = payable(WITHDRAWAL_ADDRESS_3).call{ value: amount3 }("");
require(success1 && success2 && success3, "WITHDRAWAL_FAILED");
}
}// SPDX-License-Identifier: MIT
// AUTOGENERATED FILE by Thu Apr 18 2024 20:00:47 GMT-0700 (Pacific Daylight Time)
pragma solidity ^0.8.0;
contract ChiliData {
string[] public fullPalettes = ['ff00ff', '000000', 'ffffff', 'c8f9fc', '92e0e0', 'ff80bd', '7a2f80', '8e488d', '1f2640', '232640', '212640', '45235a', 'ffd426', '6e3e1e', '6e3814', 'ebd9d9', 'ebc3c3', 'af8a62', 'ad8151', 'dcaf80', 'dba36b', 'ff3333', '3347ff', '33d3ff', '33ff33', 'ff7a33', '9933ff', 'c2323b', '4d7d3b', '9f2930', 'f1525b', 'ff868c', '828c91', 'a4abaf', 'fcb5db', 'f6d3e3', 'fceef4', 'ff2219', 'ffd519', 'cbdbfc', 'd67889', 'a1b1a3', 'f2f2f2', 'ff6a19', '5cbd8d', '683a23', 'd73238', '936a37', 'd3f4f2', '03e3fc', '612021', '541c1c', 'e43b45', 'feae33', 'ffd715', 'd75c0a', '5c6dbd', '9e9e9e', 'd2c0bf', '121212', '724d4e', '0e1212', '171717', '090909', 'dfe1e1', '9d2626', '253270', 'e1e4e8', '253570', '5976a4', 'dd7d4d', 'eb8552', 'f5c2a9', '4d5500', '767625', '4d3e18', '87872e', '565e01', '413411', 'e2b081', 'ebd7aa', '1985e5', 'dcd24d', 'ebe052', 'b0a420', 'f5f0a9', '199dcb', '19c77f', '25ac9e', 'd53434', 'f0f2f2', 'de4dde', 'eb52eb', 'f5a9f5', 'cd24cd', 'd926d9', 'b11fb1', 'ebdced', 'ebaaed', 'ebb4ed', 'ff6619', '221c18', 'ce2424', 'd92626', 'b21f1f', 'bb4160', 'ebe8ed', '662635', 'e4e1e6', 'ececec', 'dfdfdf', 'a6d2e5', 'd95766', 'afffff', '63c5ff', 'ea2629', '804919', 'ff4f19', 'ff3d19', 'ff7519', 'ff9919', 'ffbd19', '388220', '9ac08e', '1c4210', 'c0c0c0', 'f89e2b', 'f69430', '822121', 'c08e8e', '421010', '6d2888', 'b592c3', '371445', '828282', 'ffafaf', 'ff5b5b', '110e1a', 'f3d55f', 'f9eaae', '7b6c30', 'ffed80', '1a1a1a', '0d0d0d', '191919', '1c1c1c', '1f1f1f', '0c0c0c', '0a0a0a', 'ce3333', '080808', '070707', '050505', 'fcda70', 'fdd868', 'fcd662', 'ce33b9', '1959ff', 'f8d796', '1963ff', '2d5b7b', '306082', '336588', 'e88b4f', 'e98f54', 'e8925b', '33b1ce', '171516', '222034', 'c47f47', 'c49747', '595652', '43622c', '48692f', '4d7032', 'c8ddf2', '0e0e0e', 'da3130', 'db3736', 'da3c3c', '060606', '2bc960', '874eba', '604aba', '6d4bb9', 'df7126', 'cc6824', 'a66091', '955682', '5a5753', '19abb2', 'd73b38', '030303', '8c19ff', 'a53030', 'ac3232', 'b23535', 'ceb133', 'cd914b', 'cf924c', 'e82e32', 'ff6333', 'ffb833', 'b9e32d', '23abb0', '335cff', '7033ff', '651eff', 'e8c136', '2527ff', '181617', 'ffdc00', 'd77bba', '922b2b'];
///////////////////////////////////////
// Skin
bytes[] public Skin = [
bytes(hex'ce0004031b000603190008031800090316000b0315000b0315000b0315000b031500070301040303150007030104030316000a0316000a0316000903170009031800070319000703190006031a0006031a0005031a0005031b0004031b0004031c000203'),
bytes(hex'ce00040c1b00060c1900080c1800090c16000b0c15000b0c15000b0c15000b0c15000b0c15000b0c16000a0c16000a0c1600090c1700090c1800070c1900070c1900060c1a00060c1a00050c1a00050c1b00040c1b00040c1c00020c'),
bytes(hex'ce000106020701061b00010801090206020919000108010a060918000109010a070916000109010a090915000109010a090915000108010a090915000108010a090915000108010a090915000108010a090916000108010a080916000108010a080916000108010a070917000108010a070918000108010a050919000108010a050919000108010a04091a000108010a04091a000108010a03091a000108010a03091b00020b02091b000206010b01091c0001070106'),
bytes(hex'ce0004051b000605190008051800090516000b0515000b0515000b0515000b0515000b0515000b0516000a0516000a0516000905170009051800070519000705190006051a0006051a0005051a0005051b0004051b0004051c000205'),
bytes(hex'ce0004151b000615190008151800091516000b1515000b1515000b1515000b1515000b1515000b1516000a1516000a1516000915170009151800071519000715190006151a0006151a0005151a0005151b0004151b0004151c000215'),
bytes(hex'ce00040d1b00060d1900080d1800090d16000b0d15000b0d15000b0d15000b0d15000b0d1500070d010e030d16000a0d16000a0d1600090d1700090d1800070d1900070d1900060d1a00060d1a00050d1a00050d1b00040d1b00040d1c00020d'),
bytes(hex'ce00040f1b00060f1900080f1800090f16000b0f15000b0f15000b0f15000b0f15000b0f1500070f0110030f16000a0f16000a0f1600090f1700090f1800070f1900070f1900060f1a00060f1a00050f1a00050f1b00040f1b00040f1c00020f'),
bytes(hex'ce0004111b000611190008111800091116000b1115000b1115000b1115000b1115000b11150007110112031116000a1116000a1116000911170009111800071119000711190006111a0006111a0005111a0005111b0004111b0004111c000211'),
bytes(hex'ce0004131b000613190008131800091316000b1315000b1315000b1315000b1315000b13150007130114031316000a1316000a1316000913170009131800071319000713190006131a0006131a0005131a0005131b0004131b0004131c000213'),
bytes(hex'ce0004161b000616190008161800091616000b1615000b1615000b1615000b1615000b1615000b1616000a1616000a1616000916170009161800071619000716190006161a0006161a0005161a0005161b0004161b0004161c000216'),
bytes(hex'ce0004171b000617190008171800091716000b1715000b1715000b1715000b1715000b1715000b1716000a1716000a1716000917170009171800071719000717190006171a0006171a0005171a0005171b0004171b0004171c000217'),
bytes(hex'ce0004181b000618190008181800091816000b1815000b1815000b1815000b1815000b1815000b1816000a1816000a1816000918170009181800071819000718190006181a0006181a0005181a0005181b0004181b0004181c000218'),
bytes(hex'ce0004191b000619190008191800091916000b1915000b1915000b1915000b1915000b1915000b1916000a1916000a1916000919170009191800071919000719190006191a0006191a0005191a0005191b0004191b0004191c000219'),
bytes(hex'ce000120022101201b000621190001200621012018000921160001200921012015000b21150001200921012015000b21150001200921012015000b21160001200821012016000a2116000120072101201700092118000120052101201900072119000120042101201a0006211a000120032101201a0005211b000120022101201b000221012001211c0001200121'),
bytes(hex'ce00041a1b00061a1900081a1800091a16000b1a15000b1a15000b1a15000b1a15000b1a15000b1a16000a1a16000a1a1600091a1700091a1800071a1900071a1900061a1a00061a1a00051a1a00051a1b00041a1b00041a1c00021a'),
bytes(hex'ce00011b031c1b00011d051c1900011d011e061c1800011f011b071c1600011d011b091c1500011c011e091c15000b1c15000b1c15000b1c15000b1c16000a1c16000a1c1600091c1700091c1800071c1900071c1900061c1a00061c1a00051c1a00051c1b00041c1b00041c1c00021c')
];
string[] public Skin_traits = [
'Alien',
'Confident Yellow',
'Cosmic',
'Cotton Candy',
'Earthy Red',
'Human Prototype 1',
'Human Prototype 2',
'Human Prototype 3',
'Human Prototype 4',
'Insightful Indigo',
'Intuitive Blue',
'Loving Green',
'Passionate Orange',
'Robot',
'Spiritual Violet',
'Zombie'
];
///////////////////////////////////////
// Accessories
bytes[] public Accessories = [
bytes(hex'ff00ff00170002221d0001220123012401221c000122022301221d000222'),
bytes(hex'ff003c0001293f0001291f0001291e000129200001291e0001291e0001291a00042a012b'),
bytes(hex'ff00f3000125'),
bytes(hex'ff00ac000131'),
bytes(hex'ff00ff00cf00013120000131030001311c000131010001311e0001311e000127012801271d000127012801271e000127'),
bytes(hex'ff00ac000126'),
bytes(hex'ff00ff00cf00012620000126030001261c000126010001261e0001261e000127012801271d000127012801271e000127'),
bytes(hex'ff00ac00012c1e00012c0100012c1d00012c0100012c1e00012c'),
bytes(hex'ff003c0001293f0001291f0001291e000129200001291e0001291e0001291a00042d012e'),
bytes(hex'ff00ff00cf00012f2000012f0300012f1c00012f0100012f1e00012f1e000127012801271d000127012801271e000127'),
bytes(hex'ff00'),
bytes(hex'ff00ac0001301e000130010001301d000130010001301e000130'),
bytes(hex'ff005c0001293f0001291f0001291e000129200001291e0001291e0001291a00013220000132020003321b00013201000133013201331c0002320133'),
bytes(hex'ff00ff0053000134013501361e0001360134013501371c000337'),
bytes(hex'ff00ac0001381e000138010001381d000138010001381e000138'),
bytes(hex'ff00ff00cf00013920000139030001391c000139010001391e0001391e000127012801271d000127012801271e000127')
];
string[] public Accessories_traits = [
'Bubble Gum',
'Cigar',
'Clown Nose',
'Diamond Earing',
'Diamond Necklace',
'Gold Earing',
'Gold Necklace',
'Jade Earring',
'Joint',
'Leather Necklace',
'None',
'Pearl Earring',
'Pipe',
'Pizza',
'Sapphire Earring',
'Stainless Steel Necklace'
];
///////////////////////////////////////
// Clothes
bytes[] public Clothes = [
bytes(hex'ff00ff00af00013a013b0400013b1900013c013a013b0200013a1a00013a023b0200013c1a00013b013a013b1c00013b013a013c013a1c00013d013b013a013b1b00013c013a023b1c00013a013b'),
bytes(hex'ff00ff006c00023e1d00013e023b013e1d00013e023b023e0400013e1700023e023b043e1a00023b013f023b013f1a00023b013f023b1a00053b1b00043b1b00043b1c00023b'),
bytes(hex'ff00ff00af00023e0400013e1900023b043e1a00023b013f013b013f013b1a00023b013e013b013e1a00033b013f013b1b00033b013e1b00043b1c00023b'),
bytes(hex'ff00ff00af00013e01400400013e1900023b014001410140013e1a00033b0141023b1a00033b0141013b1a00053b1b00043b1b00043b1c00023b'),
bytes(hex'ff00ff00af0001420143040001421900024401430145014301421a000344014502441a000344014501441a0005441b0004441b0004441c000244'),
bytes(hex'ff00ff006c0002461d000146024701461d000146024702460400014617000246024704461a0002470148024701481a000247014802471a0005471b0004471b0004471c000247'),
bytes(hex'ff00ff00af000149014a0400014b1900024b014c0200014b1a00014c014a014b014d014a014c1a000149014d014c014d01491a00014c0149014b014e014c1b00014d014a014d014b1b00014d014c014e014b1c00014e014d'),
bytes(hex'ff00ff00ae00022e014f0400014f1900012e0150044f190002510350014f01501a0001510350014f1900022e04501b00012e03501a00025103501c0001510150'),
bytes(hex'ff00ff006c0002521d000152025301521d000152025302520400015217000252025304521a0002530155025301551a000253015502531a0005531b0004531b0004531c000253'),
bytes(hex'ff00ff00af000252040001521900025304521a00025301540153015401531a0002530152015301521a000353015401531b00035301521b0004531c000253'),
bytes(hex'ff00ff00ea0001561f0001560157030001571a000156015702000158025716000156015802570158020002580257160004560100025602581a000456'),
bytes(hex'ff00ff00af00023e0400013e1900023b0159023e01591a00025a0159025a01591a00023b0159023b1a00035a0159015a1b00033b01591b00045a1c00023b'),
bytes(hex'ff00'),
bytes(hex'ff00ff006c00025b1d00015b025c015b1d00015b025c025b0400015b1700025b025c045b1a00025c015d025c015d1a00025c015d025c1a00055c1b00045c1b00045c1c00025c'),
bytes(hex'ff00ff00af00025e0400015e1900025f045e1a00025f0160015f0160015f1a00025f015e015f015e1a00035f0160015f1b00035f015e1b00045f1c00025f'),
bytes(hex'ff00ff00af000161016204000162190001610262020001621a00016301610162020001621a000163016101621c00036301611c00036301611b0004631c000263'),
bytes(hex'ff00ff00af000264040001641900022b04641a00042b02651a00052b130002650500052b130004650400042b14000465010001650100042b160002650100016501000165022b'),
bytes(hex'ff00ff00af000266040001661900026704661a00026701680167016801671a0002670166016701661a000367016801671b00036701661b0004671c000267'),
bytes(hex'ff00ff00af000169016a0400016a1900016b0169016a020001691a000169026a0200016b1a00016a0169016a1c00016a0169016b01691c00016c016a0169016a1b00016b0169026a1c000169016a'),
bytes(hex'ff00ff00af00026d0400016d1900022a046d1a00022a016e012a016e012a1a00022a016d012a016d1a00032a016e012a1b00032a016d1b00042a1c00022a'),
bytes(hex'ff00ff00af00016f016c0400016c1900016f026c0200016c1a00016a016f016c0200016c1a00016a016f016c1c00036a016f1c00036a016f1b00046a1c00026a')
];
string[] public Clothes_traits = [
'Black Hawaiian Shirt',
'Black Hoodie',
'Black Quimono',
'Black Suit',
'Blue Suit',
'Brown Hoodie',
'Camo',
'Festive',
'Lime Hoodie',
'Lime Quimono',
'Mermaid',
'Mime',
'Nacked',
'Pink Hoodie',
'Pink Quimono',
'Pink Robe',
'Prisoner',
'Red Quimono',
'White Hawaiian Shirt',
'White Quimono',
'White Robe'
];
///////////////////////////////////////
// Eyes
bytes[] public Eyes = [
bytes(hex'ff0011000102030001021a00030201000302180009021700020201010302010102021700090218000302010003021a00010203000102'),
bytes(hex'ff006f00027001010370010102701700097018000370010003701a00017003000170'),
bytes(hex'ff0011000101030001011a00030101000301180009011700020201010302010102021700090218000302010003021a00010203000102'),
bytes(hex'1b0001710300017100711a000171030001711a000171030001711a000171030001711a000171030001711a000171030001711a000171030001711a000171030001711a000171030001711a000171030001711a000171030001711800027201710372017102721700097218000372010003721a00017203000172'),
bytes(hex'ff0011000174030001741a00037401000374180009741700020201010302010102021700090218000302010003021a00010203000102'),
bytes(hex'ff00320003021c0005021a000302010103021a0005021c000302'),
bytes(hex'ff0011000102030001021a000302010003021800010201010102010101020101010201010102170002020101030201010202170001020101010201010102010101020101010218000302010003021a00010203000102'),
bytes(hex'ff004f0003010300030117000401010004011800020101730101017302011a00020101000201'),
bytes(hex'ff00340001011e0001011b00040102020101020217000401050218000201020003021800010105000102180001011e000101'),
bytes(hex'ff0011000175030001751a000176017501760100017601750176190002750177017602750177017617000176017702780176017702780176170001760179017801790176017901780179017618000176012601760100017601260176'),
bytes(hex'ff004f00090117000101012e0673010117000901'),
bytes(hex'ff004e000b011500017a027b017c037b017c027b017a1600097b1800037b0100037b'),
bytes(hex'ff006f00020201010302010102021700090218000302010003021a00010203000102'),
bytes(hex'ff0011000126030001261a00032601000326180009261700020201010302010102021700090218000302010003021a00010203000102'),
bytes(hex'ff001100017d0300017d1a00037d0100037d1800097d1700020201010302010102021700090218000302010003021a00010203000102'),
bytes(hex'ff002e000b7e1500017e047f017e047f017e15000b7e1500027e027f037e027f027e1600047e0100047e'),
bytes(hex'ff004e000b0115000183028401850384018502840183160009841800038401000384'),
bytes(hex'ff004e000b0115000180028101820381018202810180160009811800038101000381'),
bytes(hex'1b0001870300018700871a000187030001871a000187030001871a000187030001871a000187030001871a000187030001871a000187030001871a000187030001871a000187030001871a000187030001871a000187030001871800028801870388018702881700098818000388010003881a00018803000188'),
bytes(hex'ff004e000b011500030101860301018603011600030101860301018601011800030101000301'),
bytes(hex'ff006f0002020101030201010202'),
bytes(hex'ff0011000102030001021a00030201000302180001020101030201010302170009021700090218000302010003021a00010203000102'),
bytes(hex'ff0011000189030001891a0003890100038918000989170009891700098918000389010003891a00018903000189'),
bytes(hex'ff004e000b011500018a028b018c038b018c028b018a1600098b1800038b0100038b')
];
string[] public Eyes_traits = [
'Admired',
'Based',
'Black Eyelash',
'Blue Laser',
'Brown Eyelash',
'Cyclop',
'Dead Eyes',
'Devil Eyes',
'Eye Patch',
'Fire',
'Futuristic Glasses',
'Green Glasses',
'Hero',
'Metallic Gold Eyelash',
'Metallic Silver Eyelash',
'Party',
'Purple Glasses',
'Red Glasses',
'Red Laser',
'Sunglasses',
'Suspicious',
'Thoughtful',
'Void',
'Yellow Glasses'
];
///////////////////////////////////////
// Head
bytes[] public Head = [
bytes(hex'4d000226028d0226190001260600012619000326028d0126'),
bytes(hex'ff00'),
bytes(hex'8f00028e1d00048e1b00018e018f018e018f018e018f1a00018e018f018e018f018e018f'),
bytes(hex'8c0008901700019008910190150001900391019005920190140001900391079015000190029101901d000290'),
bytes(hex'710001981e00019801941d00019802941c00019803941e000294'),
bytes(hex'890003931c000193028f01940195059315000193028f01940195079414000193018f0194019509941300018f0196010001970294070001941100018f01960200019701941e0001971f000197'),
bytes(hex'7100019b1e00019b019a1d00019b029a1c00019b039a1e00029a'),
bytes(hex'890003991c000199029a019b019c059915000199029a019b019c079a14000199019a019b019c099a1300019a019b0100019b029a0700019a1100019a019b0200019b019a1e00019b1f00019b'),
bytes(hex'cc00019d0100049d1b00069d1800029d'),
bytes(hex'8c0008a0170001a008a101a0150001a003a101a005a201a0140001a003a107a0150001a002a101a01d0002a0'),
bytes(hex'8b00069e1900019e072e1700019e022e079f1500019e022e029f079e1300019e022e029f019e0700019e1300012e029f019e1d00029f1f00019f'),
bytes(hex'710001a31e0001a301a41d0001a302a41c0001a303a41e0002a4'),
bytes(hex'890003a51c0001a502a401a301a605a5150001a502a401a301a607a4140001a501a401a301a609a4130001a401a3010001a302a4070001a4110001a401a3020001a301a41e0001a31f0001a3'),
bytes(hex'8e0004a71b0006a7190004a7020002a715000ba7'),
bytes(hex'ed0006a8'),
bytes(hex'6e000173020001731b00017304000173190002730400027318000273040002731800017306000173'),
bytes(hex'8e0004a91b0006a91a0006aa17000ca9'),
bytes(hex'8c0008ac170001ac08ad01ac150001ac03ad01ac05ae01ac140001ac03ad07ac150001ac02ad01ac1d0002ac'),
bytes(hex'cc0001ab010004ab1b0006ab180002ab'),
bytes(hex'900001791e000179012e01791e0001791c00037901000279'),
bytes(hex'ed0006af'),
bytes(hex'ab0001980594019318000198079401b016000198099401b0140001980494070001b01300019803941c00019802941d00019802941d00019802941d00019802941d00019802941d00019802941b0001980100019803941a0001980194019803941a0001980194019802941c0001980294'),
bytes(hex'ab00019b059a01991800019b079a01991600019b099a01991400019b049a070001991300019b039a1c00019b029a1d00019b029a1d00019b029a1d00019b029a1d00019b029a1d00019b029a1b00019b0100019b039a1a00019b019a019b039a1a00019b019a019b029a1c00019b029a'),
bytes(hex'ab0001a305a401a5180001a307a401a5160001a309a401a5140001a304a4070001a5130001a303a41c0001a302a41d0001a302a41d0001a302a41d0001a302a41d0001a302a41d0001a302a41b0001a3010001a303a41a0001a301a401a303a41a0001a301a401a302a41c0001a302a4'),
bytes(hex'ab0001b105b201b3180001b107b201b3160001b109b201b3140001b104b2070001b3130001b103b21c0001b102b21d0001b102b21d0001b102b21d0001b102b21d0001b102b21d0001b102b21b0001b1010001b103b21a0001b101b201b103b21a0001b101b201b102b21c0001b102b2'),
bytes(hex'ac0001b40494019319000198069401b017000198089401b0150001980394070001b01400019802941d00019801941e00019801941e00019801941e00019801941e00019801941e00019801941e00019802941d00019802941d00019802941d00019802941d00019802941d0001980194'),
bytes(hex'ac00019b049a01991900019b069a01991700019b089a01991500019b039a070001991400019b029a1d00019b019a1e00019b019a1e00019b019a1e00019b019a1e00019b019a1e00019b019a1e00019b029a1d00019b029a1d00019b029a1d00019b029a1d00019b029a1d00019b019a'),
bytes(hex'ac0001a304a401a5190001a306a401a5170001a308a401a5150001a303a4070001a5140001a302a41d0001a301a41e0001a301a41e0001a301a41e0001a301a41e0001a301a41e0001a301a41e0001a302a41d0001a302a41d0001a302a41d0001a302a41d0001a302a41d0001a301a4'),
bytes(hex'ac0001b104b201b3190001b106b201b3170001b108b201b3150001b103b2070001b3140001b102b21d0001b101b21e0001b101b21e0001b101b21e0001b101b21e0001b101b21e0001b101b21e0001b102b21d0001b102b21d0001b102b21d0001b102b21d0001b102b21d0001b101b2'),
bytes(hex'6d0001b5020001b602b5150002b5030001b5020001b6180001b6020001b701b601b801b602b8170001b6010001b701b801b601b802b502b8030002b5110001b601b703b801b605b8020001b6120001b701b602b8070002b8130001b702b81c0001b501b701b81e0001b501b61e0001b701b81e0001b701b81e0001b701b81b0002b5010001b701b81c0001b6010001b702b81b0001b601b801b702b81b0001b601b801b702b81c0001b702b8'),
bytes(hex'8f0002b91d0004b91b0001b901ba01b901ba01b901ba1a0001b901ba01b901ba01b901ba'),
bytes(hex'8f0002bb1d0004bb1b0001bb01bc01bb01bc01bb01bc1a0001bb01bc01bb01bc01bb01bc'),
bytes(hex'6d0003ab02bd1d0001011d0001be037901bf1a0002be037902bf1900070103c0'),
bytes(hex'900001791e00017901c101791e0001791c00037901000279'),
bytes(hex'cc00012e0100042e1b00062e1800022e'),
bytes(hex'8c0008c2170001c208c301c2150001c203c301c205c401c2140001c203c307c2150001c202c301c21d0002c2'),
bytes(hex'710001b11e0001b101b21d0001b102b21c0001b103b21e0002b2'),
bytes(hex'890003b31c0001b302b201b101c505b3150001b302b201b101c507b2140001b301b201b101c509b2130001b201b1010001b102b2070001b2110001b201b1020001b101b21e0001b11f0001b1'),
bytes(hex'cd0001980494019319000198069401931700019801940700019316000198'),
bytes(hex'cd00019b049a01991900019b069a01991700019b019a070001991600019b'),
bytes(hex'cd0001a304a401a5190001a306a401a5170001a301a4070001a5160001a3'),
bytes(hex'cd0001b104b201b3190001b106b201b3170001b101b2070001b3160001b1'),
bytes(hex'8e0003c601c71b0005c601c7160001c6020001c801c901ca01cb01cc01cd01ce01c8020001c713000ac602c7'),
bytes(hex'6d0006a71a0006a71a0006a71a00062e18000aa7'),
bytes(hex'6d0004cf1b0001cf010004cf1c0004cf1b00040101d0010118000acf'),
bytes(hex'6d0004d11b0001d1010004d11c0004d11b00040101d0010118000ad1'),
bytes(hex'ad0005a701d2190007a701d215000ba703d2')
];
string[] public Head_traits = [
'Angel',
'Bald',
'Black Beanie',
'Black Beret',
'Black Mohawk',
'Black Ponytail',
'Blonde Mohawk',
'Blonde Ponytail',
'Blue Bandana',
'Blue Beret',
'Boho',
'Brown Mohawk',
'Brown Ponytail',
'Cap Backward',
'Dark Headband',
'Devil',
'Founder Hat',
'Green Beret',
'Grey Bandana',
'King Crown',
'Light Headband',
'Long Curly Black',
'Long Curly Blonde',
'Long Curly Brown',
'Long Curly Red',
'Long Straight Black',
'Long Straight Blonde',
'Long Straight Brown',
'Long Straight Red',
'Medusa',
'Orange Beanie',
'Pink Beanie',
'Propeller',
'Queen Crown',
'Red Bandana',
'Red Beret',
'Red Mohawk',
'Red Ponytail',
'Short Black',
'Short Blonde',
'Short Brown',
'Short Red',
'Sombrero',
'Top Hat',
'Witch',
'Wizard',
'Zorro'
];
///////////////////////////////////////
// Mouth
bytes[] public Mouth = [
bytes(hex'ff00ff00330003011d000173'),
bytes(hex'ff00ff0033000301'),
bytes(hex'ff00ff001200010120000301'),
bytes(hex'ff00ff0033000331'),
bytes(hex'ff00ff00330003d3'),
bytes(hex'ff00ff00330003011c000101'),
bytes(hex'ff00ff0012000101030001011c000301'),
bytes(hex'ff00ff00330003d4'),
bytes(hex'ff00ff00330003d5'),
bytes(hex'ff00ff00330003011c00010103000101'),
bytes(hex'ff00ff001200010101000101010001011a0001010100010101000101'),
bytes(hex'ff00ff00330003011d00010201000102')
];
string[] public Mouth_traits = [
'Bloody',
'Calm',
'Convinced',
'Diamond Grill',
'Gold Grill',
'Grumpy',
'Happy',
'Pink Lipstick',
'Red Lipstick',
'Sad',
'Sewn',
'Vampire'
];
}// SPDX-License-Identifier: MIT
// 🐸🚬
pragma solidity ^0.8.0;
import 'base64-sol/base64.sol';
import "./IChiliRenderer.sol";
import "./ChiliData.sol";
contract ChiliRenderer is IChiliRenderer, ChiliData {
struct CharacterData {
uint Background;
// chilibangs
uint Skin;
uint Head;
uint Clothes;
uint Mouth;
uint Accessories;
uint Eyes;
}
string[] public bgPaletteColors = [
'cc9999',
'a1cc99',
'99a8cc',
'cc99bb',
'ccb399',
'ccc999',
'ccccff'
];
function getSVG(uint256 seed) external view override returns (string memory) {
return _getSVG(seed);
}
function _getSVG(uint256 seed) internal view returns (string memory) {
CharacterData memory data = _generateCharacterData(seed);
string memory image = string(abi.encodePacked(
'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" shape-rendering="crispEdges" width="512" height="512">',
'<rect width="100%" height="100%" fill="#', bgPaletteColors[data.Background], '"/>',
_renderRects(Skin[data.Skin], fullPalettes),
_renderRects(Head[data.Head], fullPalettes),
_renderRects(Clothes[data.Clothes], fullPalettes),
_renderRects(Mouth[data.Mouth], fullPalettes),
_renderRects(Accessories[data.Accessories], fullPalettes),
_renderRects(Eyes[data.Eyes], fullPalettes),
'</svg>'
));
return image;
}
function getTraitsMetadata(uint256 seed) external override view returns (string memory) {
return _getTraitsMetadata(seed);
}
function _getTraitsMetadata(uint256 seed) internal view returns (string memory) {
CharacterData memory data = _generateCharacterData(seed);
// just for backgrounds
string[17] memory lookup = [
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', '10', '11', '12', '13', '14',
'15', '16'
];
string memory metadata = string(abi.encodePacked(
'{"trait_type":"Background", "value":"', lookup[data.Background+1], '"},'
// trait names
'{"trait_type":"Skin", "value":"', Skin_traits[data.Skin], '"},',
'{"trait_type":"Head", "value":"', Head_traits[data.Head], '"},',
'{"trait_type":"Clothes", "value":"', Clothes_traits[data.Clothes], '"},',
'{"trait_type":"Mouth", "value":"', Mouth_traits[data.Mouth], '"},',
'{"trait_type":"Accessories", "value":"', Accessories_traits[data.Accessories], '"},',
'{"trait_type":"Eyes", "value":"', Eyes_traits[data.Eyes], '"},'
));
return metadata;
}
function _renderRects(bytes memory data, string[] memory palette) private pure returns (string memory) {
string[33] memory lookup = [
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'10', '11', '12', '13', '14', '15', '16', '17', '18', '19',
'20', '21', '22', '23', '24', '25', '26', '27', '28', '29',
'30', '31', '32'
];
string memory rects;
uint256 drawIndex = 0;
for (uint256 i = 0; i < data.length; i = i+2) {
uint8 runLength = uint8(data[i]); // we assume runLength of any non-transparent segment cannot exceed image width (32px)
uint8 colorIndex = uint8(data[i+1]);
if (colorIndex != 0) { // transparent
uint8 x = uint8(drawIndex % 32);
uint8 y = uint8(drawIndex / 32);
string memory color = palette[colorIndex];
rects = string(abi.encodePacked(rects, '<rect width="', lookup[runLength], '" height="1" x="', lookup[x], '" y="', lookup[y], '" fill="#', color, '"/>'));
}
drawIndex += runLength;
}
return rects;
}
function _generateCharacterData(uint256 seed) private view returns (CharacterData memory) {
return CharacterData({
Background: seed % bgPaletteColors.length,
Skin: (seed/2) % Skin.length,
Head : (seed/3) % Head.length,
Clothes : (seed/4) % Clothes.length,
Mouth : (seed/5) % Mouth.length,
Accessories : (seed/6) % Accessories.length,
Eyes : (seed/7) % Eyes.length
});
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (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;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// 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()`.
*
* The `_sequentialUpTo()` function can be overriden to enable spot mints
* (i.e. non-consecutive mints) for `tokenId`s greater than `_sequentialUpTo()`.
*
* 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;
// The amount of tokens minted above `_sequentialUpTo()`.
// We call these spot mints (i.e. non-sequential mints).
uint256 private _spotMinted;
// =============================================================
// CONSTRUCTOR
// =============================================================
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
if (_sequentialUpTo() < _startTokenId()) _revert(SequentialUpToTooSmall.selector);
}
// =============================================================
// TOKEN COUNTING OPERATIONS
// =============================================================
/**
* @dev Returns the starting token ID for sequential mints.
*
* Override this function to change the starting token ID for sequential mints.
*
* Note: The value returned must never change after any tokens have been minted.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Returns the maximum token ID (inclusive) for sequential mints.
*
* Override this function to return a value less than 2**256 - 1,
* but greater than `_startTokenId()`, to enable spot (non-sequential) mints.
*
* Note: The value returned must never change after any tokens have been minted.
*/
function _sequentialUpTo() internal view virtual returns (uint256) {
return type(uint256).max;
}
/**
* @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 result) {
// Counter underflow is impossible as `_burnCounter` cannot be incremented
// more than `_currentIndex + _spotMinted - _startTokenId()` times.
unchecked {
// With spot minting, the intermediate `result` can be temporarily negative,
// and the computation must be unchecked.
result = _currentIndex - _burnCounter - _startTokenId();
if (_sequentialUpTo() != type(uint256).max) result += _spotMinted;
}
}
/**
* @dev Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view virtual returns (uint256 result) {
// Counter underflow is impossible as `_currentIndex` does not decrement,
// and it is initialized to `_startTokenId()`.
unchecked {
result = _currentIndex - _startTokenId();
if (_sequentialUpTo() != type(uint256).max) result += _spotMinted;
}
}
/**
* @dev Returns the total number of tokens burned.
*/
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
/**
* @dev Returns the total number of tokens that are spot-minted.
*/
function _totalSpotMinted() internal view virtual returns (uint256) {
return _spotMinted;
}
// =============================================================
// 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.selector);
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.selector);
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 Returns whether the ownership slot at `index` is initialized.
* An uninitialized slot does not necessarily mean that the slot has no owner.
*/
function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {
return _packedOwnerships[index] != 0;
}
/**
* @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);
}
}
/**
* @dev Returns the packed ownership data of `tokenId`.
*/
function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {
if (_startTokenId() <= tokenId) {
packed = _packedOwnerships[tokenId];
if (tokenId > _sequentialUpTo()) {
if (_packedOwnershipExists(packed)) return packed;
_revert(OwnerQueryForNonexistentToken.selector);
}
// If the data at the starting slot does not exist, start the scan.
if (packed == 0) {
if (tokenId >= _currentIndex) _revert(OwnerQueryForNonexistentToken.selector);
// 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, `tokenId` will not underflow.
//
// We can directly compare the packed value.
// If the address is zero, packed will be zero.
for (;;) {
unchecked {
packed = _packedOwnerships[--tokenId];
}
if (packed == 0) continue;
if (packed & _BITMASK_BURNED == 0) return packed;
// Otherwise, the token is burned, and we must revert.
// This handles the case of batch burned tokens, where only the burned bit
// of the starting slot is set, and remaining slots are left uninitialized.
_revert(OwnerQueryForNonexistentToken.selector);
}
}
// Otherwise, the data exists and we can skip the scan.
// This is possible because we have already achieved the target condition.
// This saves 2143 gas on transfers of initialized tokens.
// If the token is not burned, return `packed`. Otherwise, revert.
if (packed & _BITMASK_BURNED == 0) return packed;
}
_revert(OwnerQueryForNonexistentToken.selector);
}
/**
* @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. See {ERC721A-_approve}.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
*/
function approve(address to, uint256 tokenId) public payable virtual override {
_approve(to, tokenId, true);
}
/**
* @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.selector);
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 result) {
if (_startTokenId() <= tokenId) {
if (tokenId > _sequentialUpTo()) return _packedOwnershipExists(_packedOwnerships[tokenId]);
if (tokenId < _currentIndex) {
uint256 packed;
while ((packed = _packedOwnerships[tokenId]) == 0) --tokenId;
result = packed & _BITMASK_BURNED == 0;
}
}
}
/**
* @dev Returns whether `packed` represents a token that exists.
*/
function _packedOwnershipExists(uint256 packed) private pure returns (bool result) {
assembly {
// The following is equivalent to `owner != address(0) && burned == false`.
// Symbolically tested.
result := gt(and(packed, _BITMASK_ADDRESS), and(packed, _BITMASK_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);
// Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.
from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));
if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);
(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.selector);
_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;
}
}
}
}
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
assembly {
// 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.
from, // `from`.
toMasked, // `to`.
tokenId // `tokenId`.
)
}
if (toMasked == 0) _revert(TransferToZeroAddress.selector);
_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.selector);
}
}
/**
* @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.selector);
}
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.selector);
_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:
// - `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)
);
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
if (toMasked == 0) _revert(MintToZeroAddress.selector);
uint256 end = startTokenId + quantity;
uint256 tokenId = startTokenId;
if (end - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);
do {
assembly {
// 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`.
tokenId // `tokenId`.
)
}
// The `!=` check ensures that large values of `quantity`
// that overflows uint256 will make the loop run out of gas.
} while (++tokenId != end);
_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.selector);
if (quantity == 0) _revert(MintZeroQuantity.selector);
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector);
_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)
);
if (startTokenId + quantity - 1 > _sequentialUpTo()) _revert(SequentialMintExceedsLimit.selector);
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.selector);
}
} while (index < end);
// This prevents reentrancy to `_safeMint`.
// It does not prevent reentrancy to `_safeMintSpot`.
if (_currentIndex != end) revert();
}
}
}
/**
* @dev Equivalent to `_safeMint(to, quantity, '')`.
*/
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, '');
}
/**
* @dev Mints a single token at `tokenId`.
*
* Note: A spot-minted `tokenId` that has been burned can be re-minted again.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` must be greater than `_sequentialUpTo()`.
* - `tokenId` must not exist.
*
* Emits a {Transfer} event for each mint.
*/
function _mintSpot(address to, uint256 tokenId) internal virtual {
if (tokenId <= _sequentialUpTo()) _revert(SpotMintTokenIdTooSmall.selector);
uint256 prevOwnershipPacked = _packedOwnerships[tokenId];
if (_packedOwnershipExists(prevOwnershipPacked)) _revert(TokenAlreadyExists.selector);
_beforeTokenTransfers(address(0), to, tokenId, 1);
// Overflows are incredibly unrealistic.
// The `numberMinted` for `to` is incremented by 1, and has a max limit of 2**64 - 1.
// `_spotMinted` is incremented by 1, and has a max limit of 2**256 - 1.
unchecked {
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `true` (as `quantity == 1`).
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_nextInitializedFlag(1) | _nextExtraData(address(0), to, prevOwnershipPacked)
);
// Updates:
// - `balance += 1`.
// - `numberMinted += 1`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += (1 << _BITPOS_NUMBER_MINTED) | 1;
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
if (toMasked == 0) _revert(MintToZeroAddress.selector);
assembly {
// 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`.
tokenId // `tokenId`.
)
}
++_spotMinted;
}
_afterTokenTransfers(address(0), to, tokenId, 1);
}
/**
* @dev Safely mints a single token at `tokenId`.
*
* Note: A spot-minted `tokenId` that has been burned can be re-minted again.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}.
* - `tokenId` must be greater than `_sequentialUpTo()`.
* - `tokenId` must not exist.
*
* See {_mintSpot}.
*
* Emits a {Transfer} event.
*/
function _safeMintSpot(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mintSpot(to, tokenId);
unchecked {
if (to.code.length != 0) {
uint256 currentSpotMinted = _spotMinted;
if (!_checkContractOnERC721Received(address(0), to, tokenId, _data)) {
_revert(TransferToNonERC721ReceiverImplementer.selector);
}
// This prevents reentrancy to `_safeMintSpot`.
// It does not prevent reentrancy to `_safeMint`.
if (_spotMinted != currentSpotMinted) revert();
}
}
}
/**
* @dev Equivalent to `_safeMintSpot(to, tokenId, '')`.
*/
function _safeMintSpot(address to, uint256 tokenId) internal virtual {
_safeMintSpot(to, tokenId, '');
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Equivalent to `_approve(to, tokenId, false)`.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_approve(to, tokenId, false);
}
/**
* @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:
*
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
bool approvalCheck
) internal virtual {
address owner = ownerOf(tokenId);
if (approvalCheck && _msgSenderERC721A() != owner)
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
_revert(ApprovalCallerNotOwnerNorApproved.selector);
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
// =============================================================
// 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.selector);
}
_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 + _spotMinted` 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.selector);
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)
}
}
/**
* @dev For more efficient reverts.
*/
function _revert(bytes4 errorSelector) internal pure {
assembly {
mstore(0x00, errorSelector)
revert(0x00, 0x04)
}
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IChiliRenderer{
// svg rendering
function getSVG(uint256 seed) external view returns (string memory);
// metadata
function getTraitsMetadata(uint256 seed) external view returns (string memory);
}// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.3.0
// 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();
/**
* `_sequentialUpTo()` must be greater than `_startTokenId()`.
*/
error SequentialUpToTooSmall();
/**
* The `tokenId` of a sequential mint exceeds `_sequentialUpTo()`.
*/
error SequentialMintExceedsLimit();
/**
* Spot minting requires a `tokenId` greater than `_sequentialUpTo()`.
*/
error SpotMintTokenIdTooSmall();
/**
* Cannot mint over a token that already exists.
*/
error TokenAlreadyExists();
/**
* The feature is not compatible with spot mints.
*/
error NotCompatibleWithSpotMints();
// =============================================================
// 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);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1, "Math: mulDiv overflow");
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, 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 << 3) < value ? 1 : 0);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.2) (utils/cryptography/MerkleProof.sol)
pragma solidity ^0.8.0;
/**
* @dev These functions deal with verification of Merkle Tree proofs.
*
* The tree and the proofs can be generated using our
* https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
* You will find a quickstart guide in the readme.
*
* WARNING: You should avoid using leaf values that are 64 bytes long prior to
* hashing, or use a hash function other than keccak256 for hashing leaves.
* This is because the concatenation of a sorted pair of internal nodes in
* the merkle tree could be reinterpreted as a leaf value.
* OpenZeppelin's JavaScript library generates merkle trees that are safe
* against this attack out of the box.
*/
library MerkleProof {
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*/
function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
/**
* @dev Calldata version of {verify}
*
* _Available since v4.7._
*/
function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leafs & pre-images are assumed to be sorted.
*
* _Available since v4.4._
*/
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Calldata version of {processProof}
*
* _Available since v4.7._
*/
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
*
* _Available since v4.7._
*/
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
/**
* @dev Calldata version of {multiProofVerify}
*
* CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
*
* _Available since v4.7._
*/
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
* proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
* leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
* respectively.
*
* CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
* is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
* tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
*
* _Available since v4.7._
*/
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofLen = proof.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
require(leavesLen + proofLen - 1 == totalHashes, "MerkleProof: invalid multiproof");
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
require(proofPos == proofLen, "MerkleProof: invalid multiproof");
unchecked {
return hashes[totalHashes - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Calldata version of {processMultiProof}.
*
* CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
*
* _Available since v4.7._
*/
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofLen = proof.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
require(leavesLen + proofLen - 1 == totalHashes, "MerkleProof: invalid multiproof");
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
require(proofPos == proofLen, "MerkleProof: invalid multiproof");
unchecked {
return hashes[totalHashes - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
}
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling 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 v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.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 `int256` to its ASCII `string` decimal representation.
*/
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
}
/**
* @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);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;
/// @title Base64
/// @author Brecht Devos - <brecht@loopring.org>
/// @notice Provides functions for encoding/decoding base64
library Base64 {
string internal constant TABLE_ENCODE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
bytes internal constant TABLE_DECODE = hex"0000000000000000000000000000000000000000000000000000000000000000"
hex"00000000000000000000003e0000003f3435363738393a3b3c3d000000000000"
hex"00000102030405060708090a0b0c0d0e0f101112131415161718190000000000"
hex"001a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132330000000000";
function encode(bytes memory data) internal pure returns (string memory) {
if (data.length == 0) return '';
// load the table into memory
string memory table = TABLE_ENCODE;
// multiply by 4/3 rounded up
uint256 encodedLen = 4 * ((data.length + 2) / 3);
// add some extra buffer at the end required for the writing
string memory result = new string(encodedLen + 32);
assembly {
// set the actual output length
mstore(result, encodedLen)
// prepare the lookup table
let tablePtr := add(table, 1)
// input ptr
let dataPtr := data
let endPtr := add(dataPtr, mload(data))
// result ptr, jump over length
let resultPtr := add(result, 32)
// run over the input, 3 bytes at a time
for {} lt(dataPtr, endPtr) {}
{
// read 3 bytes
dataPtr := add(dataPtr, 3)
let input := mload(dataPtr)
// write 4 characters
mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))
resultPtr := add(resultPtr, 1)
mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))
resultPtr := add(resultPtr, 1)
mstore8(resultPtr, mload(add(tablePtr, and(shr( 6, input), 0x3F))))
resultPtr := add(resultPtr, 1)
mstore8(resultPtr, mload(add(tablePtr, and( input, 0x3F))))
resultPtr := add(resultPtr, 1)
}
// padding with '='
switch mod(mload(data), 3)
case 1 { mstore(sub(resultPtr, 2), shl(240, 0x3d3d)) }
case 2 { mstore(sub(resultPtr, 1), shl(248, 0x3d)) }
}
return result;
}
function decode(string memory _data) internal pure returns (bytes memory) {
bytes memory data = bytes(_data);
if (data.length == 0) return new bytes(0);
require(data.length % 4 == 0, "invalid base64 decoder input");
// load the table into memory
bytes memory table = TABLE_DECODE;
// every 4 characters represent 3 bytes
uint256 decodedLen = (data.length / 4) * 3;
// add some extra buffer at the end required for the writing
bytes memory result = new bytes(decodedLen + 32);
assembly {
// padding with '='
let lastBytes := mload(add(data, mload(data)))
if eq(and(lastBytes, 0xFF), 0x3d) {
decodedLen := sub(decodedLen, 1)
if eq(and(lastBytes, 0xFFFF), 0x3d3d) {
decodedLen := sub(decodedLen, 1)
}
}
// set the actual output length
mstore(result, decodedLen)
// prepare the lookup table
let tablePtr := add(table, 1)
// input ptr
let dataPtr := data
let endPtr := add(dataPtr, mload(data))
// result ptr, jump over length
let resultPtr := add(result, 32)
// run over the input, 4 characters at a time
for {} lt(dataPtr, endPtr) {}
{
// read 4 characters
dataPtr := add(dataPtr, 4)
let input := mload(dataPtr)
// write 3 bytes
let output := add(
add(
shl(18, and(mload(add(tablePtr, and(shr(24, input), 0xFF))), 0xFF)),
shl(12, and(mload(add(tablePtr, and(shr(16, input), 0xFF))), 0xFF))),
add(
shl( 6, and(mload(add(tablePtr, and(shr( 8, input), 0xFF))), 0xFF)),
and(mload(add(tablePtr, and( input , 0xFF))), 0xFF)
)
)
mstore(resultPtr, shl(232, output))
resultPtr := add(resultPtr, 3)
}
}
return result;
}
}
{
"compilationTarget": {
"contracts/Chili.sol": "Chili"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
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