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Latest 25 from a total of 529 transactions
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Burn And Reroll ... | 20509412 | 51 days ago | IN | 0 ETH | 0.00048452 | ||||
Burn And Reroll ... | 20509405 | 51 days ago | IN | 0 ETH | 0.0005994 | ||||
Burn And Reroll ... | 20509402 | 51 days ago | IN | 0 ETH | 0.00051307 | ||||
Burn And Reroll ... | 20509399 | 51 days ago | IN | 0 ETH | 0.00053227 | ||||
Burn And Reroll ... | 20509348 | 51 days ago | IN | 0 ETH | 0.00062675 | ||||
Burn And Reroll ... | 20509340 | 51 days ago | IN | 0 ETH | 0.00069996 | ||||
Burn And Reroll ... | 20509335 | 51 days ago | IN | 0 ETH | 0.00064095 | ||||
Burn And Reroll ... | 20509331 | 51 days ago | IN | 0 ETH | 0.00073195 | ||||
Burn And Reroll ... | 20437119 | 61 days ago | IN | 0 ETH | 0.00049746 | ||||
Burn And Reroll ... | 20437109 | 61 days ago | IN | 0 ETH | 0.00164943 | ||||
Burn And Reroll ... | 20437100 | 61 days ago | IN | 0 ETH | 0.0018026 | ||||
Burn And Reroll ... | 20437055 | 61 days ago | IN | 0 ETH | 0.00201471 | ||||
Burn And Reroll ... | 20430448 | 62 days ago | IN | 0 ETH | 0.00119319 | ||||
Burn And Reroll ... | 20430432 | 62 days ago | IN | 0 ETH | 0.00193097 | ||||
Burn And Reroll ... | 20430077 | 62 days ago | IN | 0 ETH | 0.00102644 | ||||
Burn And Reroll ... | 20206584 | 94 days ago | IN | 0 ETH | 0.00147813 | ||||
Burn And Reroll ... | 20206575 | 94 days ago | IN | 0 ETH | 0.00142342 | ||||
Burn And Reroll ... | 20206565 | 94 days ago | IN | 0 ETH | 0.00139343 | ||||
Burn And Reroll ... | 20206554 | 94 days ago | IN | 0 ETH | 0.00149917 | ||||
Burn And Reroll ... | 20206549 | 94 days ago | IN | 0 ETH | 0.00146924 | ||||
Burn And Reroll ... | 19258367 | 226 days ago | IN | 0 ETH | 0.00333364 | ||||
Burn And Reroll ... | 18553864 | 325 days ago | IN | 0 ETH | 0.00488551 | ||||
Burn And Reroll ... | 17885368 | 419 days ago | IN | 0 ETH | 0.00508627 | ||||
Burn And Reroll ... | 17628051 | 455 days ago | IN | 0 ETH | 0.00534677 | ||||
Burn And Reroll ... | 17510240 | 471 days ago | IN | 0 ETH | 0.00172609 |
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Contract Name:
ChainRunnersBurnEvent
Compiler Version
v0.8.4+commit.c7e474f2
Optimization Enabled:
Yes with 2000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
import "@openzeppelin/contracts/access/Ownable.sol"; import "../ChainRunnersXR.sol"; import "../ChainRunnersItems.sol"; import "../ChainRunners.sol"; contract ChainRunnersBurnEvent is Ownable, IERC721Receiver { address private _xrContractAddress; uint256 private _eventStartTimestamp; uint256 private _lastMintedXrTokenId; uint256[] private _availableXrTokenIds; uint256 private _maxRerollsPerTransaction; error TokenDoesNotExist(); error NotTokenOwner(); error CannotBurnRerolledTokens(); error BurnEventHasNotStarted(); error MaxSupplyExceeded(); error IncorrectNumberOfTokens(); event RerolledXrTokens(uint256[] burnedTokenIds, uint256[] mintedTokenIds); constructor(address xrContractAddress) { _xrContractAddress = xrContractAddress; _maxRerollsPerTransaction = 10; } // MODIFIERS modifier onlyWhenEventActive() { if (_eventStartTimestamp == 0 || block.timestamp < _eventStartTimestamp || _maxRerollsPerTransaction == 0) revert BurnEventHasNotStarted(); _; } // REROLL - MANAGE function burnAndRerollXrTokens(uint256[] memory xrTokenIds) public onlyWhenEventActive returns (uint256[] memory) { if (xrTokenIds.length == 0 || xrTokenIds.length > _maxRerollsPerTransaction) revert IncorrectNumberOfTokens(); _burnXrTokens(xrTokenIds); uint256[] memory mintedTokenIds = _mintXrTokens(xrTokenIds.length); emit RerolledXrTokens(xrTokenIds, mintedTokenIds); return mintedTokenIds; } // REROLL - VIEW function getAvailableXrTokenIds() public view returns (uint256[] memory) { return _availableXrTokenIds; } function getNumberOfAvailableXrTokens() public view returns (uint256) { return _availableXrTokenIds.length; } function getTokenIdAtIndex(uint256 i) public view returns (uint256) { return _availableXrTokenIds[i]; } function getLastMintedXrTokenId() public view returns (uint256) { return _lastMintedXrTokenId; } // INTERNAL - MANAGE function _burnXrTokens(uint256[] memory xrTokenIds) internal { ChainRunnersXR xrContract = ChainRunnersXR(_xrContractAddress); for (uint256 i; i < xrTokenIds.length; i++) { if (xrTokenIds[i] > _lastMintedXrTokenId) revert CannotBurnRerolledTokens(); if (xrContract.ownerOf(xrTokenIds[i]) != _msgSender()) revert NotTokenOwner(); xrContract.burn(xrTokenIds[i]); } } function _mintXrTokens(uint256 quantity) internal returns (uint256[] memory mintedXrTokenIds) { ChainRunnersXR xrContract = ChainRunnersXR(_xrContractAddress); if (quantity > _availableXrTokenIds.length) revert MaxSupplyExceeded(); mintedXrTokenIds = new uint256[](quantity); for (uint256 i; i < quantity; i++) { uint256 tokenIdIndex = randomNumber(_msgSender(), _availableXrTokenIds.length) % _availableXrTokenIds.length; uint256 tokenId = _availableXrTokenIds[tokenIdIndex]; _availableXrTokenIds[tokenIdIndex] = _availableXrTokenIds[_availableXrTokenIds.length - 1]; _availableXrTokenIds.pop(); xrContract.safeTransferFrom(address(this), _msgSender(), tokenId); mintedXrTokenIds[i] = tokenId; } return mintedXrTokenIds; } // INTERNAL - VIEW function randomNumber(address to, uint256 remainingSupply) internal view returns (uint256) { return uint256( keccak256( abi.encode( to, tx.gasprice, block.number, block.timestamp, block.difficulty, blockhash(block.number - 1), address(this), remainingSupply ) ) ); } // ADMIN - MANAGE function setXrContractAddress(address xrContractAddress) public onlyOwner { _xrContractAddress = xrContractAddress; } function setEventStartTimestamp(uint256 eventStartTimestamp) public onlyOwner { _eventStartTimestamp = eventStartTimestamp; } function setLastMintedXrTokenId(uint256 lastMintedXrTokenId) public onlyOwner { _lastMintedXrTokenId = lastMintedXrTokenId; } function setMaxRerollsPerTransaction(uint256 maxRerollsPerTransaction) public onlyOwner { _maxRerollsPerTransaction = maxRerollsPerTransaction; } function devMintXr(uint256 quantity) public onlyOwner { ChainRunnersXR xrContract = ChainRunnersXR(_xrContractAddress); xrContract.mintDev(quantity); } function transferXrContractOwnership(address newOwner) public onlyOwner { Ownable xrContract = Ownable(_xrContractAddress); xrContract.transferOwnership(newOwner); } function emergencyTransferXrTokens(address to, uint256[] memory tokenIds) public onlyOwner { ChainRunnersXR xrContract = ChainRunnersXR(_xrContractAddress); for (uint256 i; i < tokenIds.length; i++) { xrContract.safeTransferFrom(address(this), to, tokenIds[i]); } } function emergencyDeleteTokenIndex(uint256 i) public onlyOwner { _availableXrTokenIds[i] = _availableXrTokenIds[_availableXrTokenIds.length - 1]; _availableXrTokenIds.pop(); } // ADMIN -READ function xrContractAddress() public view returns (address) { return _xrContractAddress; } function eventStartTimestamp() public view returns (uint256) { return _eventStartTimestamp; } function lastMintedXrTokenId() public view returns (uint256) { return _lastMintedXrTokenId; } function maxRerollsPerTransaction() public view returns (uint256) { return _maxRerollsPerTransaction; } /** * @dev See {IERC1155Receiver-onERC721Received}. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external override returns (bytes4) { if (operator == address(this)) { _availableXrTokenIds.push(tokenId); } return this.onERC721Received.selector; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.4; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol"; import "./core/ERC721AClaimable.sol"; import "./interfaces/IChainRunnersRenderer.sol"; import "./interfaces/IChainRunners.sol"; /* :::: :::#%= @*==+- ++==*=. #+=#=++.. ..=*=*+-#: :=+++++++=====================================: .===============================================. .=========================================++++++++= .%-+%##+=--==================================+=..=+-=============================================-+*+======================================---+##+=#-. -+++@@%++++@@@%+++++++++++++++++++++++++++%#++++++%#+++#@@@#+++++++++@@%++++++++++++++++++++@#+.=+*@*+*@@@@*+++++++++++++++++++++++%@@@#+++#@@+++= -*-#%@@%%%=*%@%*++=++=+==+=++=++=+=++=++==#@%#%#+++=+=*@%*+=+==+=+++%*++==+=++=+==+=++=+=++@%%#%#++++*@%#++=++=++=++=+=++=++=+=+*%%*==*%@@@*:%= :@:+@@@@@@*+++%@@*+===========+*=========#@@========+#%==========*@========##*#*+=======*@##*======#@#+=======*#*============+#%++#@@%#@@#++=. .*+=%@%*%@%##++@@%#=-==-=--==*%=========*%==--=--=-====--=--=-=##=--=-=--%%%%%+=-=--=-=*%=--=--=-=#%=--=----=#%=--=-=--=-+%#+==#%@@*#%@=++. +%.#@@###%@@@@@%*---------#@%########@%*---------------------##---------------------##---------%%*--------@@#---------+#@=#@@#+==@@%*++- .:*+*%@#+=*%@@@*=-------=#%#=-------=%*---------=*#*--------#+=--------===--------=#%*-------=#%*-------==@%#--------=%@@%#*+=-+#%*+*:. ====================%*.@@%#==+##%@*=----------------+@#+---------@@*-------=*@+---------@@*--------=@+--------+@=--------*@@+-------+#@@%#==---+#@.*%==================== :*=--==================-:=#@@%*===+*@%+=============%%%@=========*%@*========+@+=--=====+%@+==========@+========+@========*%@@+======%%%**+=---=%@#=:-====================-#- +++**%@@@#*****************@#*=---=##%@@@@@@@@@@@@@#**@@@@****************%@@*+++@#***********#@************************************+=------=*@#*********************@#+=+: .-##=*@@%*----------------+%@%=---===+%@@@@@@@*+++---%#++----------------=*@@*+++=-----------=+#=------------------------------------------+%+--------------------+#@-=@ :%:#%#####+=-=-*@@+--=-==-=*@=--=-==-=*@@#*=-==-=-+@===-==-=-=++==-=-==--=@%===-==----+-==-==--+*+-==-==---=*@@@@@@%#===-=-=+%@%-==-=-==-#@%=-==-==--+#@@@@@@@@@@@@*+++ =*=#@#=----==-=-=++=--=-==-=*@=--=-==-=*@@+-=-==-==+@===-=--=-*@@*=-=-==--+@=--=-==--+#@-==-==---+%-==-==---=+++#@@@#--==-=-=++++-=--=-===#%+=-==-==---=++++++++@@@%.#* +#:@%*===================++%#=========%@%=========#%=========+#@%+=======#%==========*@#=========*%=========+*+%@@@+========+*==========+@@%+**+================*%#*=+= *++#@*+=++++++*#%*+++++=+++*%%++++=++++%%*=+++++++##*=++++=++=%@@++++=++=+#%++++=++++#%@=+++++++=*#*+++++++=#%@@@@@*++=++++=#%@*+++=++=+++@#*****=+++++++=+++++*%@@+:=+= :=*=#%#@@@@#%@@@%#@@#++++++++++%%*+++++++++++++++++**@*+++++++++*%#++++++++=*##++++++++*%@%+++++++++##+++++++++#%%%%%%++++**#@@@@@**+++++++++++++++++=*%@@@%#@@@@#%@@@%#@++*:. #*:@#=-+%#+:=*@*=-+@%#++++++++#%@@#*++++++++++++++#%@#*++++++++*@@#+++++++++@#++++++++*@@#+++++++++##*+++++++++++++++++###@@@@++*@@#+++++++++++++++++++*@@#=:+#%+--+@*=-+%*.@= ++=#%#+%@@%=#%@%#+%%#++++++*#@@@%###**************@@@++++++++**#@##*********#*********#@@#++++++***@#******%@%#*++**#@@@%##+==+++=*#**********%%*++++++++#%#=%@@%+*%@%*+%#*=*- .-*+===========*@@+++++*%%%@@@++***************+.%%*++++#%%%@@%=:=******************--@@#+++*%%@#==+***--*@%*++*%@@*===+**=-- -************++@%%#++++++#@@@*==========*+- =*******##.#%#++++*%@@@%+==+= *#-%@%**%%###*====**- -@:*@@##@###*==+**-.-#=+@@#*@##*==+***= =+=##%@*+++++*%@@#.#%******: ++++%#+++*#@@@@+++==. **-@@@%+++++++===- -+++#@@+++++++==: :+++%@@+++++++==: .=++++@%##++++@@%++++ :%:*%%****%@@%+==*- .%==*====**+... #*.#+==***.... #+=#%+==****:. ..-*=*%@%#++*#%@=+%. -+++#%+#%@@@#++=== .@*++===- #%++=== %#+++=== =+++%@%##**@@*.@: .%-=%@##@@%*==++ .*==+#@@%*%@%=*=. .+++#@@@@@*++==. -==++#@@@@@@=+% .=*=%@@%%%#=*=. .*+=%@@@@%+-#. @=-@@@%:++++. -+++**@@#+*=: .-+=*#%%++*::. :+**=#%@#==# #*:@*+++=: =+++@*++=: :*-=*=++.. .=*=#*.%= +#.=+++: ++++:+# *+=#-:: .::*+=* */ contract ChainRunnersXR is Ownable, ERC721AClaimable, ReentrancyGuard { address public genesisContractAddress; address public xrRendererContractAddress; uint256 public immutable amountForDevs; uint256 public immutable mintCollectionSize; uint256 public numAvailableTokens = 10000; mapping(uint => uint) private _availableTokens; mapping(uint256 => uint256) tokenIdToContentIdMapping; uint256 public publicSaleStartTimestamp; uint256 public allowlistStartTimestamp; uint256 public claimStartTimestamp; mapping(address => uint256) public allowlist; bytes32 private allowlistMerkleRoot; uint256[40] claimedBitMap; uint256 public constant MAX_PER_ADDRESS_DURING_ALLOWLIST_MINT = 1; uint256 public constant MAX_PER_TRANSACTION_DURING_PUBLIC = 5; uint256 public constant PRICE_PER_TOKEN = 0.1 ether; uint256 public constant MAX_BATCH_SIZE = 5; uint256 revealSeed; uint256 public burningStartTimestamp; constructor( uint256 mintCollectionSize_, uint256 amountForDevs_, address genesisContractAddress_, address xrRendererContractAddress_ ) ERC721AClaimable("Chain Runners XR", "XR") { mintCollectionSize = mintCollectionSize_; amountForDevs = amountForDevs_; genesisContractAddress = genesisContractAddress_; xrRendererContractAddress = xrRendererContractAddress_; } modifier callerIsUser() { require(tx.origin == msg.sender, "the caller is another contract"); _; } // SALE CONFIG FUNCTIONS function setAllowlistSaleStartTimestamp(uint256 _allowlistStartTimestamp) external onlyOwner { allowlistStartTimestamp = _allowlistStartTimestamp; } function setPublicSaleStartTimestamp(uint256 _publicSaleStartTimestamp) external onlyOwner { publicSaleStartTimestamp = _publicSaleStartTimestamp; } function setClaimStartTimestamp(uint256 _claimStartTimestamp) external onlyOwner { claimStartTimestamp = _claimStartTimestamp; } function isPublicSaleActive() public view returns (bool) { return publicSaleStartTimestamp != 0 && block.timestamp >= publicSaleStartTimestamp; } function isAllowlistSaleActive() public view returns (bool) { return allowlistStartTimestamp != 0 && block.timestamp >= allowlistStartTimestamp; } function isClaimActive() public view returns (bool) { return claimStartTimestamp != 0 && block.timestamp >= claimStartTimestamp; } function setAllowlistMerkleRoot(bytes32 _root) external onlyOwner { allowlistMerkleRoot = _root; } function setXRRenderingContractAddress(address _xrRenderingContractAddress) public onlyOwner { xrRendererContractAddress = _xrRenderingContractAddress; } function reveal(uint256 _revealSeed) external onlyOwner { revealSeed = _revealSeed; } // MINTING FUNCTIONS function mintDev(uint256 _quantity) external onlyOwner { require( _totalMinted() + _quantity <= mintCollectionSize, "too many already minted before dev mint" ); require( _quantity % MAX_BATCH_SIZE == 0, "can only mint a multiple of the maxBatchSize" ); require(_quantity <= amountForDevs, "quantity is too high"); uint256 numChunks = _quantity / MAX_BATCH_SIZE; for (uint256 i = 0; i < numChunks; i++) { _mintRandom(msg.sender, MAX_BATCH_SIZE); } } function mintAllowlist(uint256 _quantity, bytes32[] calldata _merkleProof) external payable callerIsUser returns (uint256) { require(isAllowlistSaleActive(), "allowlist sale has not begun yet"); require(MerkleProof.verify(_merkleProof, allowlistMerkleRoot, keccak256(abi.encodePacked(msg.sender))), "not on allowlist"); require(allowlist[msg.sender] + _quantity <= MAX_PER_ADDRESS_DURING_ALLOWLIST_MINT, "not eligible for allowlist mint"); require(_totalMinted() + _quantity <= (mintCollectionSize - amountForDevs), "reached max supply"); uint256 totalCost = uint256(PRICE_PER_TOKEN * _quantity); unchecked { allowlist[msg.sender] += _quantity; } _mintRandom(msg.sender, _quantity); refundIfOver(totalCost); return _currentMintIndex - _quantity; } function mintPublic(uint256 _quantity) external payable callerIsUser returns (uint256) { require(isPublicSaleActive(), "public sale has not begun yet"); require(_totalMinted() + _quantity <= (mintCollectionSize - amountForDevs), "reached max supply"); require(_quantity <= MAX_PER_TRANSACTION_DURING_PUBLIC, "quantity too high"); _mintRandom(msg.sender, _quantity); refundIfOver(PRICE_PER_TOKEN * _quantity); return _currentMintIndex - _quantity; } /** * Mint `_numToMint` tokens. Use Fisher Yates to draw a uniformly random * contentId to associate with each tokenId. */ function _mintRandom(address _to, uint _numToMint) internal { uint updatedNumAvailableTokens = numAvailableTokens; for (uint256 i; i < _numToMint; i++) { uint256 contentId = getRandomAvailableContentId(_to, updatedNumAvailableTokens--); tokenIdToContentIdMapping[_currentMintIndex+i] = contentId; } _safeMint(_to, _numToMint); numAvailableTokens = updatedNumAvailableTokens; } function getRandomAvailableContentId(address _to, uint _updatedNumAvailableTokens) internal returns (uint256) { uint256 randomNum = randomNumber(_to, _updatedNumAvailableTokens); uint256 randomIndex = randomNum % _updatedNumAvailableTokens; return getAvailableTokenAtIndex(randomIndex, _updatedNumAvailableTokens); } function randomNumber(address _to, uint _updatedNumAvailableTokens) internal view returns (uint256) { return uint256( keccak256( abi.encode( _to, tx.gasprice, block.number, block.timestamp, block.difficulty, blockhash(block.number - 1), address(this), _updatedNumAvailableTokens ) ) ); } // Implements https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle. Code from https://github.com/erc721r/ERC721R/blob/main/contracts/ERC721R.sol function getAvailableTokenAtIndex(uint256 _indexToUse, uint _updatedNumAvailableTokens) internal returns (uint256) { uint256 valAtIndex = _availableTokens[_indexToUse]; uint256 result; if (valAtIndex == 0) { // This means the index itself is still an available token result = _indexToUse; } else { // This means the index itself is not an available token, but the val at that index is. result = valAtIndex; } uint256 lastIndex = _updatedNumAvailableTokens - 1; if (_indexToUse != lastIndex) { // Replace the value at indexToUse, now that it's been used. // Replace it with the data from the last index in the array, since we are going to decrease the array size afterwards. uint256 lastValInArray = _availableTokens[lastIndex]; if (lastValInArray == 0) { // This means the index itself is still an available token _availableTokens[_indexToUse] = lastIndex; } else { // This means the index itself is not an available token, but the val at that index is. _availableTokens[_indexToUse] = lastValInArray; // Gas refund courtesy of @dievardump delete _availableTokens[lastIndex]; } } return result; } // CLAIM FUNCTIONS struct ClaimData { address to; uint256 start; uint256 count; } /** * Claim all tokens for sender. */ function claimAll() external { require(isClaimActive(), "claim is not active"); address owner = _msgSender(); IChainRunners genesisContract = IChainRunners(genesisContractAddress); uint256 balance = genesisContract.balanceOf(owner); ClaimData memory batch; unchecked { for (uint256 i; i < balance; i++) { uint256 tokenId = genesisContract.tokenOfOwnerByIndex(owner, i); if (!isClaimed(tokenId)) { if (batch.start == 0) { batch.to = owner; batch.start = tokenId; batch.count = 1; } else if (((batch.start+batch.count) != tokenId) || (batch.count == MAX_BATCH_SIZE)) { _claim(batch.to, batch.start, batch.count); batch.start = tokenId; batch.count = 1; } else { batch.count++; } if (i == balance - 1) { // Claim last batch _claim(batch.to, batch.start, batch.count); } _setClaimed(tokenId); } } } } function claimsRemaining(address owner) public view returns (uint256) { IChainRunners genesisContract = IChainRunners(genesisContractAddress); uint256 balance = genesisContract.balanceOf(owner); unchecked { uint256 _claimsRemaining; for (uint256 i; i < balance; i++) { uint256 tokenId = genesisContract.tokenOfOwnerByIndex(owner, i); if (!isClaimed(tokenId)) { _claimsRemaining++; } } return _claimsRemaining; } } function isClaimed(uint256 _tokenId) public view returns (bool) { uint256 claimedWordIndex = _tokenId / 256; uint256 claimedBitIndex = _tokenId % 256; uint256 claimedWord = claimedBitMap[claimedWordIndex]; uint256 mask = (1 << claimedBitIndex); return claimedWord & mask == mask; } function _setClaimed(uint256 _tokenId) internal { uint256 claimedWordIndex = _tokenId / 256; uint256 claimedBitIndex = _tokenId % 256; claimedBitMap[claimedWordIndex] = claimedBitMap[claimedWordIndex] | (1 << claimedBitIndex); } function refundIfOver(uint256 _price) private { require(msg.value >= _price, "Need to send more ETH."); if (msg.value > _price) { payable(msg.sender).transfer(msg.value - _price); } } // RENDERING FUNCTIONS function getDna(uint256 _tokenId) public view returns (uint256) { IChainRunners genesisContract = IChainRunners(genesisContractAddress); uint256 dna_; if (_tokenId <= mintCollectionSize) { dna_ = genesisContract.getDna(_tokenId); } else { uint256 contentId = tokenIdToContentIdMapping[_tokenId]; dna_ = uint256(keccak256(abi.encodePacked( revealSeed + (contentId % mintCollectionSize) ))); } return dna_; } function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) { require(_exists(_tokenId), "ERC721Metadata: URI query for nonexistent token"); if (xrRendererContractAddress == address(0) || revealSeed == 0) { return ''; } IChainRunnersRenderer renderer = IChainRunnersRenderer(xrRendererContractAddress); ChainRunnersTypes.ChainRunner memory runner; runner.dna = getDna(_tokenId); return renderer.tokenURI(_tokenId, runner); } // MISC FUNCTIONS function withdraw() public onlyOwner { (bool succ,) = payable(msg.sender).call{value : address(this).balance}(""); require(succ, "transfer failed"); } function ownershipStartTimestamp(uint256 _tokenId) public view returns (uint256) { (TokenOwnership memory ownership, ) = _ownershipOf(_tokenId); return ownership.startTimestamp; } function burn(uint256 tokenId) external { require(isBurningActive(), "burning not active"); _burn(tokenId, true); } function isBurningActive() public view returns (bool) { return burningStartTimestamp != 0 && block.timestamp >= burningStartTimestamp; } function setBurningStartTimestamp(uint256 _timestamp) public { burningStartTimestamp = _timestamp; } }
import "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./ItemManagerPermissions.sol"; interface ChainRunnersItemRenderer { function uri(uint256 id) external view returns (string memory); } contract ChainRunnersItems is ERC1155Supply, ItemManagerPermissions { address private _rendererAddress; mapping(uint256 => uint256) private _mintEndTimes; mapping(uint256 => uint256) private _maxSupplies; mapping(uint256 => uint256) private _totalSupplies; error MintingEnded(); error MaxTokenSupplyExceeded(); error ChangeMaxTokenSupply(); error ChangeMintingEndDate(); error CallerNotOwnerNorApproved(); constructor() ERC1155('') {} // MODIFIERS modifier whenMintActive(uint256 id) { if (!isMintActive(id)) revert MintingEnded(); _; } modifier whenMintBatchActive(uint256[] memory ids) { for (uint256 i; i < ids.length; i++) { if (!isMintActive(ids[i])) revert MintingEnded(); } _; } // ADMIN FUNCTIONS function setMaxSupply(uint256 id, uint256 supply) public onlyOwner { if (_maxSupplies[id] > 0) revert ChangeMaxTokenSupply(); _maxSupplies[id] = supply; } function setMintEndTime(uint256 id, uint256 endTime) public onlyOwner { if (_mintEndTimes[id] > 0) revert ChangeMintingEndDate(); _mintEndTimes[id] = endTime; } function setRendererAddress(address rendererAddress) public onlyOwner { _rendererAddress = rendererAddress; } // READ FUNCTIONS function maxSupply(uint256 id) public view returns (uint256) { return _maxSupplies[id]; } function mintEndTime(uint256 id) public view returns (uint256) { return _mintEndTimes[id]; } function isMintActive(uint256 id) public view returns (bool) { return _mintEndTimes[id] == 0 || (block.timestamp <= _mintEndTimes[id]); } function rendererAddress() public view returns (address) { return _rendererAddress; } // MINTING FUNCTIONS function mint(address[] calldata addresses, uint256 id, uint256 amount) external onlyItemManager whenMintActive(id) { for (uint256 i; i < addresses.length; i++) { if (_maxSupplies[id] > 0 && (amount + _totalSupplies[id]) > _maxSupplies[id]) revert MaxTokenSupplyExceeded(); // Update supply before mint for reentrancy protection _totalSupplies[id] += amount; _mint(addresses[i], id, amount, ''); } } function mintBatch(address[] calldata addresses, uint256[] calldata ids, uint256[] calldata amounts) external onlyItemManager whenMintBatchActive(ids) { require(ids.length == amounts.length); for (uint256 i; i < ids.length; i++) { if (_maxSupplies[ids[i]] > 0 && (_totalSupplies[ids[i]] + (amounts[i] * addresses.length)) > _maxSupplies[ids[i]]) revert MaxTokenSupplyExceeded(); // Update supply before mint for reentrancy protection _totalSupplies[ids[i]] += (amounts[i] * addresses.length); } for (uint256 j; j < addresses.length; j++) { _mintBatch(addresses[j], ids, amounts, ''); } } // BURNING FUNCTIONS function burn(address[] calldata addresses, uint256 id, uint256 amount) external onlyItemManager { for (uint256 i; i < addresses.length; i++) { if (addresses[i] != _msgSender() && !isApprovedForAll(addresses[i], _msgSender())) revert CallerNotOwnerNorApproved(); _burn(addresses[i], id, amount); } } function burnBatch(address[] calldata addresses, uint256[] calldata ids, uint256[] calldata amounts) external onlyItemManager { for (uint256 i; i < addresses.length; i++) { if (addresses[i] != _msgSender() && !isApprovedForAll(addresses[i], _msgSender())) revert CallerNotOwnerNorApproved(); _burnBatch(addresses[i], ids, amounts); } } // RENDERING FUNCTIONS function uri(uint256 id) public view override returns (string memory) { ChainRunnersItemRenderer renderer = ChainRunnersItemRenderer(_rendererAddress); return renderer.uri(id); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.4; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/utils/Counters.sol"; import "./core/ChainRunnersTypes.sol"; import "./interfaces/IChainRunnersRenderer.sol"; /* :::: :::#%= @*==+- ++==*=. #+=#=++.. ..=*=*+-#: :=+++++++=====================================: .===============================================. .=========================================++++++++= .%-+%##+=--==================================+=..=+-=============================================-+*+======================================---+##+=#-. -+++@@%++++@@@%+++++++++++++++++++++++++++%#++++++%#+++#@@@#+++++++++@@%++++++++++++++++++++@#+.=+*@*+*@@@@*+++++++++++++++++++++++%@@@#+++#@@+++= -*-#%@@%%%=*%@%*++=++=+==+=++=++=+=++=++==#@%#%#+++=+=*@%*+=+==+=+++%*++==+=++=+==+=++=+=++@%%#%#++++*@%#++=++=++=++=+=++=++=+=+*%%*==*%@@@*:%= :@:+@@@@@@*+++%@@*+===========+*=========#@@========+#%==========*@========##*#*+=======*@##*======#@#+=======*#*============+#%++#@@%#@@#++=. .*+=%@%*%@%##++@@%#=-==-=--==*%=========*%==--=--=-====--=--=-=##=--=-=--%%%%%+=-=--=-=*%=--=--=-=#%=--=----=#%=--=-=--=-+%#+==#%@@*#%@=++. +%.#@@###%@@@@@%*---------#@%########@%*---------------------##---------------------##---------%%*--------@@#---------+#@=#@@#+==@@%*++- .:*+*%@#+=*%@@@*=-------=#%#=-------=%*---------=*#*--------#+=--------===--------=#%*-------=#%*-------==@%#--------=%@@%#*+=-+#%*+*:. ====================%*.@@%#==+##%@*=----------------+@#+---------@@*-------=*@+---------@@*--------=@+--------+@=--------*@@+-------+#@@%#==---+#@.*%==================== :*=--==================-:=#@@%*===+*@%+=============%%%@=========*%@*========+@+=--=====+%@+==========@+========+@========*%@@+======%%%**+=---=%@#=:-====================-#- +++**%@@@#*****************@#*=---=##%@@@@@@@@@@@@@#**@@@@****************%@@*+++@#***********#@************************************+=------=*@#*********************@#+=+: .-##=*@@%*----------------+%@%=---===+%@@@@@@@*+++---%#++----------------=*@@*+++=-----------=+#=------------------------------------------+%+--------------------+#@-=@ :%:#%#####+=-=-*@@+--=-==-=*@=--=-==-=*@@#*=-==-=-+@===-==-=-=++==-=-==--=@%===-==----+-==-==--+*+-==-==---=*@@@@@@%#===-=-=+%@%-==-=-==-#@%=-==-==--+#@@@@@@@@@@@@*+++ =*=#@#=----==-=-=++=--=-==-=*@=--=-==-=*@@+-=-==-==+@===-=--=-*@@*=-=-==--+@=--=-==--+#@-==-==---+%-==-==---=+++#@@@#--==-=-=++++-=--=-===#%+=-==-==---=++++++++@@@%.#* +#:@%*===================++%#=========%@%=========#%=========+#@%+=======#%==========*@#=========*%=========+*+%@@@+========+*==========+@@%+**+================*%#*=+= *++#@*+=++++++*#%*+++++=+++*%%++++=++++%%*=+++++++##*=++++=++=%@@++++=++=+#%++++=++++#%@=+++++++=*#*+++++++=#%@@@@@*++=++++=#%@*+++=++=+++@#*****=+++++++=+++++*%@@+:=+= :=*=#%#@@@@#%@@@%#@@#++++++++++%%*+++++++++++++++++**@*+++++++++*%#++++++++=*##++++++++*%@%+++++++++##+++++++++#%%%%%%++++**#@@@@@**+++++++++++++++++=*%@@@%#@@@@#%@@@%#@++*:. #*:@#=-+%#+:=*@*=-+@%#++++++++#%@@#*++++++++++++++#%@#*++++++++*@@#+++++++++@#++++++++*@@#+++++++++##*+++++++++++++++++###@@@@++*@@#+++++++++++++++++++*@@#=:+#%+--+@*=-+%*.@= ++=#%#+%@@%=#%@%#+%%#++++++*#@@@%###**************@@@++++++++**#@##*********#*********#@@#++++++***@#******%@%#*++**#@@@%##+==+++=*#**********%%*++++++++#%#=%@@%+*%@%*+%#*=*- .-*+===========*@@+++++*%%%@@@++***************+.%%*++++#%%%@@%=:=******************--@@#+++*%%@#==+***--*@%*++*%@@*===+**=-- -************++@%%#++++++#@@@*==========*+- =*******##.#%#++++*%@@@%+==+= *#-%@%**%%###*====**- -@:*@@##@###*==+**-.-#=+@@#*@##*==+***= =+=##%@*+++++*%@@#.#%******: ++++%#+++*#@@@@+++==. **-@@@%+++++++===- -+++#@@+++++++==: :+++%@@+++++++==: .=++++@%##++++@@%++++ :%:*%%****%@@%+==*- .%==*====**+... #*.#+==***.... #+=#%+==****:. ..-*=*%@%#++*#%@=+%. -+++#%+#%@@@#++=== .@*++===- #%++=== %#+++=== =+++%@%##**@@*.@: .%-=%@##@@%*==++ .*==+#@@%*%@%=*=. .+++#@@@@@*++==. -==++#@@@@@@=+% .=*=%@@%%%#=*=. .*+=%@@@@%+-#. @=-@@@%:++++. -+++**@@#+*=: .-+=*#%%++*::. :+**=#%@#==# #*:@*+++=: =+++@*++=: :*-=*=++.. .=*=#*.%= +#.=+++: ++++:+# *+=#-:: .::*+=* */ contract ChainRunners is ERC721Enumerable, Ownable, ReentrancyGuard { mapping(uint256 => ChainRunnersTypes.ChainRunner) runners; address public renderingContractAddress; event GenerateRunner(uint256 indexed tokenId, uint256 dna); using Counters for Counters.Counter; Counters.Counter private _tokenIds; Counters.Counter private _reservedTokenIds; uint256 private constant MAX_RUNNERS = 10000; uint256 private constant FOUNDERS_RESERVE_AMOUNT = 85; uint256 private constant MAX_PUBLIC_RUNNERS = MAX_RUNNERS - FOUNDERS_RESERVE_AMOUNT; uint256 private constant MINT_PRICE = 0.05 ether; uint256 private constant MAX_PER_ADDRESS = 10; uint256 private constant MAX_PER_EARLY_ACCESS_ADDRESS = 5; uint256 private runnerZeroHash; uint256 private runnerZeroDNA; uint256 public earlyAccessStartTimestamp; uint256 public publicSaleStartTimestamp; mapping(address => bool) public isOnEarlyAccessList; mapping(address => uint256) public earlyAccessMintedCounts; mapping(address => uint256) private founderMintCountsRemaining; constructor() ERC721("Chain Runners", "RUN") {} modifier whenPublicSaleActive() { require(isPublicSaleOpen(), "Public sale not open"); _; } modifier whenEarlyAccessActive() { require(isEarlyAccessOpen(), "Early access not open"); _; } function setRenderingContractAddress(address _renderingContractAddress) public onlyOwner { renderingContractAddress = _renderingContractAddress; } function mintPublicSale(uint256 _count) external payable nonReentrant whenPublicSaleActive returns (uint256, uint256) { require(_count > 0 && _count <= MAX_PER_ADDRESS, "Invalid Runner count"); require(_tokenIds.current() + _count <= MAX_PUBLIC_RUNNERS, "All Runners have been minted"); require(_count * MINT_PRICE == msg.value, "Incorrect amount of ether sent"); uint256 firstMintedId = _tokenIds.current() + 1; for (uint256 i = 0; i < _count; i++) { _tokenIds.increment(); mint(_tokenIds.current()); } return (firstMintedId, _count); } function mintEarlyAccess(uint256 _count) external payable nonReentrant whenEarlyAccessActive returns (uint256, uint256) { require(_count != 0, "Invalid Runner count"); require(isOnEarlyAccessList[msg.sender], "Address not on Early Access list"); require(_tokenIds.current() + _count <= MAX_PUBLIC_RUNNERS, "All Runners have been minted"); require(_count * MINT_PRICE == msg.value, "Incorrect amount of ether sent"); uint256 userMintedAmount = earlyAccessMintedCounts[msg.sender] + _count; require(userMintedAmount <= MAX_PER_EARLY_ACCESS_ADDRESS, "Max Early Access count per address exceeded"); uint256 firstMintedId = _tokenIds.current() + 1; for (uint256 i = 0; i < _count; i++) { _tokenIds.increment(); mint(_tokenIds.current()); } earlyAccessMintedCounts[msg.sender] = userMintedAmount; return (firstMintedId, _count); } function allocateFounderMint(address _addr, uint256 _count) public onlyOwner nonReentrant { founderMintCountsRemaining[_addr] = _count; } function founderMint(uint256 _count) public nonReentrant returns (uint256, uint256) { require(_count > 0 && _count <= MAX_PER_ADDRESS, "Invalid Runner count"); require(_reservedTokenIds.current() + _count <= FOUNDERS_RESERVE_AMOUNT, "All reserved Runners have been minted"); require(founderMintCountsRemaining[msg.sender] >= _count, "You cannot mint this many reserved Runners"); uint256 firstMintedId = MAX_PUBLIC_RUNNERS + _tokenIds.current() + 1; for (uint256 i = 0; i < _count; i++) { _reservedTokenIds.increment(); mint(MAX_PUBLIC_RUNNERS + _reservedTokenIds.current()); } founderMintCountsRemaining[msg.sender] -= _count; return (firstMintedId, _count); } function mint(uint256 tokenId) internal { ChainRunnersTypes.ChainRunner memory runner; runner.dna = uint256(keccak256(abi.encodePacked( tokenId, msg.sender, block.difficulty, block.timestamp ))); _safeMint(msg.sender, tokenId); runners[tokenId] = runner; } function getRemainingEarlyAccessMints(address _addr) public view returns (uint256) { if (!isOnEarlyAccessList[_addr]) { return 0; } return MAX_PER_EARLY_ACCESS_ADDRESS - earlyAccessMintedCounts[_addr]; } function getRemainingFounderMints(address _addr) public view returns (uint256) { return founderMintCountsRemaining[_addr]; } function isPublicSaleOpen() public view returns (bool) { return block.timestamp >= publicSaleStartTimestamp && publicSaleStartTimestamp != 0; } function isEarlyAccessOpen() public view returns (bool) { return !isPublicSaleOpen() && block.timestamp >= earlyAccessStartTimestamp && earlyAccessStartTimestamp != 0; } function addToEarlyAccessList(address[] memory toEarlyAccessList) external onlyOwner { for (uint256 i = 0; i < toEarlyAccessList.length; i++) { isOnEarlyAccessList[toEarlyAccessList[i]] = true; } } function removeFromEarlyAccessList(address[] memory toRemove) external onlyOwner { for (uint256 i = 0; i < toRemove.length; i++) { isOnEarlyAccessList[toRemove[i]] = false; } } function setPublicSaleTimestamp(uint256 timestamp) external onlyOwner { publicSaleStartTimestamp = timestamp; } function setEarlyAccessTimestamp(uint256 timestamp) external onlyOwner { earlyAccessStartTimestamp = timestamp; } function checkHash(string memory seed) public view returns (uint256) { return uint256(keccak256(abi.encodePacked(seed))); } function configureRunnerZero(uint256 _runnerZeroHash, uint256 _runnerZeroDNA) external onlyOwner { require(runnerZeroHash == 0, "Runner Zero has already been configured"); runnerZeroHash = _runnerZeroHash; runnerZeroDNA = _runnerZeroDNA; } function mintRunnerZero(string memory seed) external { require(runnerZeroHash != 0, "Runner Zero has not been configured"); require(!_exists(0), "Runner Zero has already been minted"); require(checkHash(seed) == runnerZeroHash, "Incorrect seed"); ChainRunnersTypes.ChainRunner memory runner; runner.dna = runnerZeroDNA; _safeMint(msg.sender, 0); runners[0] = runner; } function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) { require(_exists(_tokenId), "ERC721Metadata: URI query for nonexistent token"); if (renderingContractAddress == address(0)) { return ''; } IChainRunnersRenderer renderer = IChainRunnersRenderer(renderingContractAddress); return renderer.tokenURI(_tokenId, runners[_tokenId]); } function tokenURIForSeed(uint256 _tokenId, uint256 seed) public view virtual returns (string memory) { require(_exists(_tokenId), "ERC721Metadata: URI query for nonexistent token"); if (renderingContractAddress == address(0)) { return ''; } ChainRunnersTypes.ChainRunner memory runner; runner.dna = seed; IChainRunnersRenderer renderer = IChainRunnersRenderer(renderingContractAddress); return renderer.tokenURI(_tokenId, runner); } function getDna(uint256 _tokenId) public view returns (uint256) { return runners[_tokenId].dna; } receive() external payable {} function withdraw() public onlyOwner { (bool success,) = msg.sender.call{value : address(this).balance}(''); require(success, "Withdrawal failed"); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.4; import "../core/ChainRunnersTypes.sol"; interface IChainRunnersRenderer { function tokenURI(uint256 tokenId, ChainRunnersTypes.ChainRunner memory runnerData) external view returns (string memory); }
// SPDX-License-Identifier: MIT // Creator: Chain Runners, based on ERC721A by Chiru Labs pragma solidity ^0.8.4; import '@openzeppelin/contracts/token/ERC721/IERC721.sol'; import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol'; import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol'; import '@openzeppelin/contracts/utils/Address.sol'; import '@openzeppelin/contracts/utils/Context.sol'; import '@openzeppelin/contracts/utils/Strings.sol'; import '@openzeppelin/contracts/utils/introspection/ERC165.sol'; error ApprovalCallerNotOwnerNorApproved(); error ApprovalQueryForNonexistentToken(); error ApproveToCaller(); error ApprovalToCurrentOwner(); error BalanceQueryForZeroAddress(); error MintToZeroAddress(); error MintZeroQuantity(); error OwnerQueryForNonexistentToken(); error TransferCallerNotOwnerNorApproved(); error TransferFromIncorrectOwner(); error TransferToNonERC721ReceiverImplementer(); error TransferToZeroAddress(); error URIQueryForNonexistentToken(); /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension. Built to optimize for lower gas during batch mints. * * This is a modification to the ERC721A contract that supports a non-sequential token claiming range from * _startClaimTokenId() to _startMintTokenId(), and a sequential minting range starting at _startMintTokenId(). * * Assumes minted serials are sequentially minted starting at _startMintTokenId() (defaults to 10001, e.g. 10000, 10001, 10002, 10003..). * * Claimed tokens can be minted in any order between _startClaimTokenId() and _startMintTokenId() (defaults to 1, e.g. 1 to 10000) * * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply. * * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256). */ contract ERC721AClaimable is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Compiler will pack this into a single 256bit word. struct TokenOwnership { // The address of the owner. address addr; // Keeps track of the start time of ownership with minimal overhead for tokenomics. uint64 startTimestamp; // Whether the token has been burned. bool burned; // Keeps track of how many tokens (above) this ownership record covers. Only set/useful for claims uint256 quantity; } // Compiler will pack this into a single 256bit word. struct AddressData { // Realistically, 2**64-1 is more than enough. uint64 balance; // Keeps track of mint count with minimal overhead for tokenomics. uint64 numberMinted; // Keeps track of burn count with minimal overhead for tokenomics. uint64 numberBurned; // For miscellaneous variable(s) pertaining to the address // (e.g. number of whitelist mint slots used). // If there are multiple variables, please pack them into a uint64. uint64 aux; } // The tokenId of the next token to be minted. uint256 internal _currentMintIndex; // The number of claimed tokens. uint256 internal _numClaimed; // Max batch size per mint uint256 internal _maxBatchSize; // The number of tokens burned. uint256 internal _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 _ownershipOf implementation for details. mapping(uint256 => TokenOwnership) internal _ownerships; // Mapping owner address to address data mapping(address => AddressData) private _addressData; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; _currentMintIndex = _startMintTokenId(); _maxBatchSize = 5; } /** * To change the starting mintTokenId, please override this function. */ function _startMintTokenId() internal view virtual returns (uint256) { return 10001; } /** * To change the starting claimTokenId, please override this function. */ function _startClaimTokenId() internal view virtual returns (uint256) { return 1; } /** * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens. */ function totalSupply() public view returns (uint256) { // Counter underflow is impossible as _burnCounter cannot be incremented // more than _currentIndex - _startMintTokenId() times unchecked { return (_currentMintIndex - _startMintTokenId()) + _numClaimed - _burnCounter; } } /** * Returns the total amount of tokens minted in the contract. */ function _totalMinted() public view returns (uint256) { unchecked { return _currentMintIndex - _startMintTokenId(); } } /** * Returns the total amount of tokens claimed in the contract. */ function totalClaimed() public view returns (uint256) { return _numClaimed; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view override returns (uint256) { if (owner == address(0)) revert BalanceQueryForZeroAddress(); return uint256(_addressData[owner].balance); } /** * Returns the number of tokens minted by `owner`. */ function _numberMinted(address owner) internal view returns (uint256) { return uint256(_addressData[owner].numberMinted); } /** * Returns the number of tokens burned by or on behalf of `owner`. */ function _numberBurned(address owner) internal view returns (uint256) { return uint256(_addressData[owner].numberBurned); } /** * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used). */ function _getAux(address owner) internal view returns (uint64) { return _addressData[owner].aux; } /** * Sets the auxillary 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 { _addressData[owner].aux = aux; } /** * Gas spent here starts off proportional to the maximum mint batch size. * It gradually moves to O(1) as tokens get transferred around in the collection over time. */ function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory, uint256 ownershipIndex) { uint256 curr = tokenId; TokenOwnership memory ownership = _ownerships[curr]; if (!ownership.burned) { if (ownership.addr != address(0)) { return (ownership, tokenId); } else if (_startMintTokenId() <= curr && curr < _currentMintIndex) { // Invariant: // There will always be an ownership that has an address and is not burned // before an ownership that does not have an address and is not burned. // Hence, curr will not underflow. unchecked { while (true) { curr--; ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return (ownership, curr); } } } } else if (_startClaimTokenId() <= curr && curr < _startMintTokenId()) { // Invariant: // These tokens are claimed in random order, but there will always be // an ownership that has an address and is not // burned within _maxBatchSize below tokenId. // Could underflow, so don't wrap in unchecked. uint256 lowestTokenToCheck = _startClaimTokenId(); if (tokenId >= _maxBatchSize) { lowestTokenToCheck = tokenId - _maxBatchSize + 1; } for (; curr >= lowestTokenToCheck && curr >= _startClaimTokenId(); curr--) { ownership = _ownerships[curr]; if ((ownership.addr != address(0)) && ((curr + ownership.quantity - 1) >= tokenId)) { return (ownership, curr); } } } } revert OwnerQueryForNonexistentToken(); } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view override returns (address) { (TokenOwnership memory ownership, ) = _ownershipOf(tokenId); return ownership.addr; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { if (!_exists(tokenId)) revert URIQueryForNonexistentToken(); string memory baseURI = _baseURI(); return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ''; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ''; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public override { address owner = ERC721AClaimable.ownerOf(tokenId); if (to == owner) revert ApprovalToCurrentOwner(); if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) { revert ApprovalCallerNotOwnerNorApproved(); } _approve(to, tokenId, owner); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view override returns (address) { if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken(); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { if (operator == _msgSender()) revert ApproveToCaller(); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ''); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { _transfer(from, to, tokenId); if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`) or claimed (`_claim`). */ function _exists(uint256 tokenId) internal view returns (bool) { return ((_startMintTokenId() <= tokenId && tokenId < _currentMintIndex) || _isClaimed(tokenId)) && !_ownerships[tokenId].burned; } /** * @dev Returns whether `tokenId` has been claimed. */ function _isClaimed(uint256 tokenId) internal view returns (bool) { uint256 curr = tokenId; if (_startClaimTokenId() <= curr && curr < _startMintTokenId()) { // Invariant: // These tokens are minted in random order, but if the token exists, // there will always be an ownership that has an address and is not // burned within _maxBatchSize below tokenId. uint256 lowestTokenToCheck = _startClaimTokenId(); if (tokenId >= _maxBatchSize) { lowestTokenToCheck = tokenId - _maxBatchSize + 1; } for (; curr >= lowestTokenToCheck && curr >= _startClaimTokenId(); curr--) { TokenOwnership memory ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return (curr + ownership.quantity - 1) >= tokenId; } } } return false; } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal { _safeMint(to, 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. * * Emits a {Transfer} event. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { uint256 startTokenId = _currentMintIndex; if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1 // updatedIndex overflows if _currentMintIndex + quantity > 1.2e77 (2**256) - 1 unchecked { _addressData[to].balance += uint64(quantity); _addressData[to].numberMinted += uint64(quantity); _ownerships[startTokenId].addr = to; _ownerships[startTokenId].startTimestamp = uint64(block.timestamp); uint256 updatedIndex = startTokenId; uint256 end = updatedIndex + quantity; if (to.isContract()) { do { emit Transfer(address(0), to, updatedIndex); if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } while (updatedIndex != end); // Reentrancy protection if (_currentMintIndex != startTokenId) revert(); } else { do { emit Transfer(address(0), to, updatedIndex++); } while (updatedIndex != end); } _currentMintIndex = updatedIndex; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @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. */ function _mint(address to, uint256 quantity) internal { uint256 startTokenId = _currentMintIndex; if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1 // updatedIndex overflows if _currentMintIndex + quantity > 1.2e77 (2**256) - 1 unchecked { _addressData[to].balance += uint64(quantity); _addressData[to].numberMinted += uint64(quantity); _ownerships[startTokenId].addr = to; _ownerships[startTokenId].startTimestamp = uint64(block.timestamp); uint256 updatedIndex = startTokenId; uint256 end = updatedIndex + quantity; do { emit Transfer(address(0), to, updatedIndex++); } while (updatedIndex != end); _currentMintIndex = updatedIndex; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * IMPORTANT NOTE: This operation is unsafe, since there is no check to ensure a taken has not been claimed. * Callers should check that a token hasn't been claimed before calling. * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {Transfer} event. */ function _claim(address to, uint256 startTokenId, uint256 quantity) internal { if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1 // updatedIndex overflows if _currentAirdropIndex + quantity > 1.2e77 (2**256) - 1 unchecked { _addressData[to].balance += uint64(quantity); _addressData[to].numberMinted += uint64(quantity); _ownerships[startTokenId].addr = to; _ownerships[startTokenId].startTimestamp = uint64(block.timestamp); _ownerships[startTokenId].quantity = quantity; uint256 updatedIndex = startTokenId; uint256 end = updatedIndex + quantity; do { emit Transfer(address(0), to, updatedIndex++); } while (updatedIndex != end); _numClaimed += quantity; _afterTokenTransfers(address(0), to, startTokenId, quantity); } } /** * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) private { (TokenOwnership memory prevOwnership, uint256 prevOwnershipIndex) = _ownershipOf(tokenId); if (prevOwnership.addr != from) revert TransferFromIncorrectOwner(); bool isApprovedOrOwner = (_msgSender() == from || isApprovedForAll(from, _msgSender()) || getApproved(tokenId) == _msgSender()); if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved(); if (to == address(0)) revert TransferToZeroAddress(); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, from); // 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. TokenOwnership storage currSlot = _ownerships[tokenId]; unchecked { _addressData[from].balance -= 1; _addressData[to].balance += 1; currSlot.addr = to; currSlot.startTimestamp = uint64(block.timestamp); } // Consider removing this. It's not likely needed, as // - ownership checks for currSlot now have an ownership record and will immediately return // - now that currSlot is set, we will only hit the _ownerships[prevOwnershipIndex] ownership record // for ownership checks between _ownerships[prevOwnershipIndex] and currSlot. Any checks above currSlot will // be covered by nextSlot, which is set below. uint256 prevOwnershipQuantity = prevOwnership.quantity; if (_startClaimTokenId() <= tokenId && tokenId < _startMintTokenId()) { currSlot.quantity = 1; _ownerships[prevOwnershipIndex].quantity = tokenId - prevOwnershipIndex + 1; } // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; TokenOwnership storage nextSlot = _ownerships[nextTokenId]; if (nextSlot.addr == address(0)) { // This will suffice for checking _exists(nextTokenId) on minted tokens, // as a burned slot cannot contain the zero address. if ((_startMintTokenId() <= tokenId && tokenId < _currentMintIndex)) { nextSlot.addr = from; nextSlot.startTimestamp = prevOwnership.startTimestamp; } else if ((prevOwnershipIndex + prevOwnershipQuantity - 1) > tokenId) { nextSlot.addr = from; nextSlot.startTimestamp = prevOwnership.startTimestamp; nextSlot.quantity = prevOwnershipIndex + prevOwnershipQuantity - 1 - tokenId; } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /** * @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 { (TokenOwnership memory prevOwnership, uint256 prevOwnershipIndex) = _ownershipOf(tokenId); address from = prevOwnership.addr; if (approvalCheck) { bool isApprovedOrOwner = (_msgSender() == from || isApprovedForAll(from, _msgSender()) || getApproved(tokenId) == _msgSender()); if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved(); } _beforeTokenTransfers(from, address(0), tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, from); // 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. TokenOwnership storage currSlot = _ownerships[tokenId]; unchecked { AddressData storage addressData = _addressData[from]; addressData.balance -= 1; addressData.numberBurned += 1; // Keep track of who burned the token, and the timestamp of burning. currSlot.addr = from; currSlot.startTimestamp = uint64(block.timestamp); currSlot.burned = true; } // Consider removing this. It's not likely needed, as // - ownership checks for currSlot now have an ownership record and will immediately return // - now that currSlot is set, we will only hit the _ownerships[prevOwnershipIndex] ownership record // for ownership checks between _ownerships[prevOwnershipIndex] and currSlot. Any checks above currSlot will // be covered by nextSlot, which is set below. uint256 prevOwnershipQuantity = prevOwnership.quantity; if (_startClaimTokenId() <= tokenId && tokenId < _startMintTokenId()) { currSlot.quantity = 1; _ownerships[prevOwnershipIndex].quantity = tokenId - prevOwnershipIndex + 1; } // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; TokenOwnership storage nextSlot = _ownerships[nextTokenId]; if (nextSlot.addr == address(0)) { // This will suffice for checking _exists(nextTokenId), // as a burned slot cannot contain the zero address. if ((_startMintTokenId() <= tokenId && tokenId < _currentMintIndex)) { nextSlot.addr = from; nextSlot.startTimestamp = prevOwnership.startTimestamp; } else if ((prevOwnershipIndex + prevOwnershipQuantity - 1) > tokenId) { nextSlot.addr = from; nextSlot.startTimestamp = prevOwnership.startTimestamp; nextSlot.quantity = prevOwnershipIndex + prevOwnershipQuantity - 1 - tokenId; } } emit Transfer(from, address(0), tokenId); _afterTokenTransfers(from, address(0), tokenId, 1); // Overflow not possible, as _burnCounter cannot exceed _currentMintIndex+_currentAirdropIndex times. unchecked { _burnCounter++; } } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkContractOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert TransferToNonERC721ReceiverImplementer(); } else { assembly { revert(add(32, reason), mload(reason)) } } } } /** * @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 {} }
// SPDX-License-Identifier: MIT pragma solidity 0.8.4; import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol"; import "../core/ChainRunnersTypes.sol"; interface IChainRunners is IERC721Enumerable { function getDna(uint256 _tokenId) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (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() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. * * 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. */ 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 proved to be a part of a Merkle tree defined by * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}. * * _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} * * _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 the sibling nodes in `proof`, * consuming from one or the other at each step according to the instructions given by * `proofFlags`. * * _Available since v4.7._ */ function processMultiProof( bytes32[] memory proof, bool[] memory proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } /** * @dev Calldata version of {processMultiProof} * * _Available since v4.7._ */ function processMultiProofCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { return a < b ? _efficientHash(a, b) : _efficientHash(b, a); } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.4; interface ChainRunnersTypes { struct ChainRunner { uint256 dna; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_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) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
import "@openzeppelin/contracts/access/Ownable.sol"; contract ItemManagerPermissions is Ownable { mapping(address => bool) private _allowlistedAddresses; event ItemManagerAllowlistUpdated(address indexed itemManager, bool allowlisted); error NotAllowedToManageItem(); // MODIFIERS modifier onlyItemManager() { if (!isAddressAllowlisted(_msgSender())) revert NotAllowedToManageItem(); _; } // ADMIN FUNCTIONS function allowlistAddress(address addr) external onlyOwner { _allowlistedAddresses[addr] = true; emit ItemManagerAllowlistUpdated(addr, true); } function removeAllowlistedAddress(address addr) external onlyOwner { delete _allowlistedAddresses[addr]; emit ItemManagerAllowlistUpdated(addr, false); } // READ FUNCTIONS function isAddressAllowlisted(address addr) public view returns (bool) { return _allowlistedAddresses[addr] == true; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC1155/extensions/ERC1155Supply.sol) pragma solidity ^0.8.0; import "../ERC1155.sol"; /** * @dev Extension of ERC1155 that adds tracking of total supply per id. * * Useful for scenarios where Fungible and Non-fungible tokens have to be * clearly identified. Note: While a totalSupply of 1 might mean the * corresponding is an NFT, there is no guarantees that no other token with the * same id are not going to be minted. */ abstract contract ERC1155Supply is ERC1155 { mapping(uint256 => uint256) private _totalSupply; /** * @dev Total amount of tokens in with a given id. */ function totalSupply(uint256 id) public view virtual returns (uint256) { return _totalSupply[id]; } /** * @dev Indicates whether any token exist with a given id, or not. */ function exists(uint256 id) public view virtual returns (bool) { return ERC1155Supply.totalSupply(id) > 0; } /** * @dev See {ERC1155-_beforeTokenTransfer}. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); if (from == address(0)) { for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] += amounts[i]; } } if (to == address(0)) { for (uint256 i = 0; i < ids.length; ++i) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 supply = _totalSupply[id]; require(supply >= amount, "ERC1155: burn amount exceeds totalSupply"); unchecked { _totalSupply[id] = supply - amount; } } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/ERC1155.sol) pragma solidity ^0.8.0; import "./IERC1155.sol"; import "./IERC1155Receiver.sol"; import "./extensions/IERC1155MetadataURI.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the basic standard multi-token. * See https://eips.ethereum.org/EIPS/eip-1155 * Originally based on code by Enjin: https://github.com/enjin/erc-1155 * * _Available since v3.1._ */ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { using Address for address; // Mapping from token ID to account balances mapping(uint256 => mapping(address => uint256)) private _balances; // Mapping from account to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json string private _uri; /** * @dev See {_setURI}. */ constructor(string memory uri_) { _setURI(uri_); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155).interfaceId || interfaceId == type(IERC1155MetadataURI).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC1155MetadataURI-uri}. * * This implementation returns the same URI for *all* token types. It relies * on the token type ID substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * Clients calling this function must replace the `\{id\}` substring with the * actual token type ID. */ function uri(uint256) public view virtual override returns (string memory) { return _uri; } /** * @dev See {IERC1155-balanceOf}. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) public view virtual override returns (uint256) { require(account != address(0), "ERC1155: address zero is not a valid owner"); return _balances[id][account]; } /** * @dev See {IERC1155-balanceOfBatch}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] memory accounts, uint256[] memory ids) public view virtual override returns (uint256[] memory) { require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch"); uint256[] memory batchBalances = new uint256[](accounts.length); for (uint256 i = 0; i < accounts.length; ++i) { batchBalances[i] = balanceOf(accounts[i], ids[i]); } return batchBalances; } /** * @dev See {IERC1155-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC1155-isApprovedForAll}. */ function isApprovedForAll(address account, address operator) public view virtual override returns (bool) { return _operatorApprovals[account][operator]; } /** * @dev See {IERC1155-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: caller is not token owner nor approved" ); _safeTransferFrom(from, to, id, amount, data); } /** * @dev See {IERC1155-safeBatchTransferFrom}. */ function safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: caller is not token owner nor approved" ); _safeBatchTransferFrom(from, to, ids, amounts, data); } /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); uint256[] memory ids = _asSingletonArray(id); uint256[] memory amounts = _asSingletonArray(amount); _beforeTokenTransfer(operator, from, to, ids, amounts, data); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; emit TransferSingle(operator, from, to, id, amount); _afterTokenTransfer(operator, from, to, ids, amounts, data); _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, ids, amounts, data); for (uint256 i = 0; i < ids.length; ++i) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; } emit TransferBatch(operator, from, to, ids, amounts); _afterTokenTransfer(operator, from, to, ids, amounts, data); _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data); } /** * @dev Sets a new URI for all token types, by relying on the token type ID * substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * By this mechanism, any occurrence of the `\{id\}` substring in either the * URI or any of the amounts in the JSON file at said URI will be replaced by * clients with the token type ID. * * For example, the `https://token-cdn-domain/\{id\}.json` URI would be * interpreted by clients as * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json` * for token type ID 0x4cce0. * * See {uri}. * * Because these URIs cannot be meaningfully represented by the {URI} event, * this function emits no events. */ function _setURI(string memory newuri) internal virtual { _uri = newuri; } /** * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _mint( address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); address operator = _msgSender(); uint256[] memory ids = _asSingletonArray(id); uint256[] memory amounts = _asSingletonArray(amount); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); _balances[id][to] += amount; emit TransferSingle(operator, address(0), to, id, amount); _afterTokenTransfer(operator, address(0), to, ids, amounts, data); _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); for (uint256 i = 0; i < ids.length; i++) { _balances[ids[i]][to] += amounts[i]; } emit TransferBatch(operator, address(0), to, ids, amounts); _afterTokenTransfer(operator, address(0), to, ids, amounts, data); _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data); } /** * @dev Destroys `amount` tokens of token type `id` from `from` * * Emits a {TransferSingle} event. * * Requirements: * * - `from` cannot be the zero address. * - `from` must have at least `amount` tokens of token type `id`. */ function _burn( address from, uint256 id, uint256 amount ) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); address operator = _msgSender(); uint256[] memory ids = _asSingletonArray(id); uint256[] memory amounts = _asSingletonArray(amount); _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } emit TransferSingle(operator, from, address(0), id, amount); _afterTokenTransfer(operator, from, address(0), ids, amounts, ""); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. */ function _burnBatch( address from, uint256[] memory ids, uint256[] memory amounts ) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); for (uint256 i = 0; i < ids.length; i++) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } } emit TransferBatch(operator, from, address(0), ids, amounts); _afterTokenTransfer(operator, from, address(0), ids, amounts, ""); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC1155: setting approval status for self"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Hook that is called before any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `ids` and `amounts` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} /** * @dev Hook that is called after any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `id` and `amount` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} function _doSafeTransferAcceptanceCheck( address operator, address from, address to, uint256 id, uint256 amount, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) { if (response != IERC1155Receiver.onERC1155Received.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _doSafeBatchTransferAcceptanceCheck( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns ( bytes4 response ) { if (response != IERC1155Receiver.onERC1155BatchReceived.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) { uint256[] memory array = new uint256[](1); array[0] = element; return array; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes calldata data ) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev _Available since v3.1._ */ interface IERC1155Receiver is IERC165 { /** * @dev Handles the receipt of a single ERC1155 token type. This function is * called at the end of a `safeTransferFrom` after the balance has been updated. * * NOTE: To accept the transfer, this must return * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` * (i.e. 0xf23a6e61, or its own function selector). * * @param operator The address which initiated the transfer (i.e. msg.sender) * @param from The address which previously owned the token * @param id The ID of the token being transferred * @param value The amount of tokens being transferred * @param data Additional data with no specified format * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed */ function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /** * @dev Handles the receipt of a multiple ERC1155 token types. This function * is called at the end of a `safeBatchTransferFrom` after the balances have * been updated. * * NOTE: To accept the transfer(s), this must return * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` * (i.e. 0xbc197c81, or its own function selector). * * @param operator The address which initiated the batch transfer (i.e. msg.sender) * @param from The address which previously owned the token * @param ids An array containing ids of each token being transferred (order and length must match values array) * @param values An array containing amounts of each token being transferred (order and length must match ids array) * @param data Additional data with no specified format * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed */ function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol) pragma solidity ^0.8.0; import "../IERC1155.sol"; /** * @dev Interface of the optional ERC1155MetadataExtension interface, as defined * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. * * _Available since v3.1._ */ interface IERC1155MetadataURI is IERC1155 { /** * @dev Returns the URI for token type `id`. * * If the `\{id\}` substring is present in the URI, it must be replaced by * clients with the actual token type ID. */ function uri(uint256 id) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "./IERC721Enumerable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
{ "optimizer": { "enabled": true, "runs": 2000, "details": { "yul": true, "yulDetails": { "stackAllocation": true, "optimizerSteps": "dhfoDgvulfnTUtnIf" } } }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"xrContractAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"BurnEventHasNotStarted","type":"error"},{"inputs":[],"name":"CannotBurnRerolledTokens","type":"error"},{"inputs":[],"name":"IncorrectNumberOfTokens","type":"error"},{"inputs":[],"name":"MaxSupplyExceeded","type":"error"},{"inputs":[],"name":"NotTokenOwner","type":"error"},{"inputs":[],"name":"TokenDoesNotExist","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256[]","name":"burnedTokenIds","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"mintedTokenIds","type":"uint256[]"}],"name":"RerolledXrTokens","type":"event"},{"inputs":[{"internalType":"uint256[]","name":"xrTokenIds","type":"uint256[]"}],"name":"burnAndRerollXrTokens","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"quantity","type":"uint256"}],"name":"devMintXr","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"i","type":"uint256"}],"name":"emergencyDeleteTokenIndex","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"emergencyTransferXrTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"eventStartTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAvailableXrTokenIds","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLastMintedXrTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNumberOfAvailableXrTokens","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"i","type":"uint256"}],"name":"getTokenIdAtIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastMintedXrTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxRerollsPerTransaction","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"eventStartTimestamp","type":"uint256"}],"name":"setEventStartTimestamp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"lastMintedXrTokenId","type":"uint256"}],"name":"setLastMintedXrTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxRerollsPerTransaction","type":"uint256"}],"name":"setMaxRerollsPerTransaction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"xrContractAddress","type":"address"}],"name":"setXrContractAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferXrContractOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"xrContractAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000004e1824ca2e3dcef21d8eabcf11ccd2b5fd46774b
-----Decoded View---------------
Arg [0] : xrContractAddress (address): 0x4E1824ca2E3dcef21D8eABcF11cCD2B5Fd46774B
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000004e1824ca2e3dcef21d8eabcf11ccd2b5fd46774b
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Multichain Portfolio | 27 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $2,382.54 | 0.0075 | $17.87 |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.