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Glitchs Army: Dark Energy
DE
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合同元数据
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0.8.19+commit.7dd6d404
语言
Solidity
合同源代码
文件 1 的 24：Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 functionCallWithValue(target, data, 0, "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");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or 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 {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// 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);
}
}
}
合同源代码
文件 2 的 24：Context.sol
// 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;
}
}
合同源代码
文件 3 的 24：DarkEnergy.sol
/**
*Glitch was here
*/
// SPDX-License-Identifier: Unlicensed
pragma solidity 0.8.19;
/*
____ _ _ _ _ _ _
/ ___| (_) |_ ___| |__ ( )___ / \ _ __ _ __ ___ _ _
| | _| | | __/ __| '_ \|// __| / _ \ | '__| '_ ` _ \| | | |
| |_| | | | || (__| | | | \__ \ / ___ \| | | | | | | | |_| |
\____|_|_|\__\___|_| |_| |___/ /_/ \_\_| |_| |_| |_|\__, |
|___/
____ _ _____
| _ \ __ _ _ __| | __ | ____|_ __ ___ _ __ __ _ _ _
| | | |/ _` | '__| |/ / | _| | '_ \ / _ \ '__/ _` | | | |
| |_| | (_| | | | < | |___| | | | __/ | | (_| | |_| |
|____/ \__,_|_| |_|\_\ |_____|_| |_|\___|_| \__, |\__, |
|___/ |___/
*/
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "./GlitchGeneralMintSpots.sol";
import "../interfaces/ISeaDrop.sol";
import "../util/OwnableAndAdministrable.sol";
import "../libraries/UriEncode.sol";
import "../interfaces/IDarkEnergy.sol";
import "../libraries/DarkEnergyPackedStruct.sol";
/**
* @title DarkEnergy
* @author mouradif.eth
* @notice Optimized ERC721 base for use with LazyLion's missing 80 Open
* Edition: DarkEnergy
*/
contract DarkEnergy is
OwnableAndAdministrable,
ReentrancyGuard,
IDarkEnergy
{
string internal constant NAME = "Glitchs Army: Dark Energy";
string internal constant SYMBOL = "DE";
uint256 internal constant ENERGY_PER_MINT = 100;
using DarkEnergyPackedStruct for bytes32;
using DarkEnergyPackedStruct for DarkEnergyPackedStruct.GameRules;
using Strings for uint256;
using Strings for int256;
using UriEncode for string;
/// @notice Missing80 Ordinals Vouchers contract
address public ordinalsVouchers;
/// @notice Track the allowed SeaDrop addresses.
mapping(address => bool) internal _allowedSeaDrop;
/// @notice Track the enumerated allowed SeaDrop addresses.
address[] internal _enumeratedAllowedSeaDrop;
/// @notice Mapping from address to ownership details in binary format
///
/// Bits Layout:
/// - [0] bool isHolder
/// - [1..40] int40 energyAmount
/// - [41..56] uint16 gamePasses
/// - [57..72] uint16 mintCount
/// - [73..88] uint16 mergeCount
/// - [89..104] uint16 noRiskPlayCount
/// - [105..120] uint16 noRiskWinCount
/// - [121..136] uint16 highStakesPlayCount
/// - [137..152] uint16 highStakesWinCount
/// - [153..168] uint16 highStakesLossCount
/// - [169..200] uint32 totalEarned
/// - [201..232] uint32 totalRugged
/// - [233..255] 23bits unused
mapping(address => bytes32) internal _playerData;
/// @notice Game configuration
///
/// @dev for the Odds:
/// Each uint16 is a number that divided by 120_000
/// returns the probability of an event to occur
/// Bits layout:
/// - [0] bool isActive (bool)
/// - [1..16] uint16 oddsNoRiskEarn100
/// - [17..32] uint16 oddsNoRiskEarn300
/// - [33..48] uint16 oddsNoRiskEarn500
/// - [49..64] uint16 oddsHighStakesWinOrdinal
/// - [65..80] uint16 oddsHighStakesLose100
/// - [81..96] uint16 oddsHighStakesLose300
/// - [97..112] uint16 oddsHighStakesLose500
/// - [113..128] uint16 oddsHighStakesLose1000
/// - [129..144] uint16 oddsHighStakesEarn100
/// - [145..160] uint16 oddsHighStakesEarn300
/// - [161..176] uint16 oddsHighStakesEarn500
/// - [177..192] uint16 oddsHighStakesEarn1000
/// - [193..208] uint16 oddsHighStakesDoubles
/// - [209..224] uint16 oddsHighStakesHalves
/// - [225..240] uint16 oddsGamePassOnMint
/// - [241..248] uint8 remainingOrdinals
/// - [249] bool flagA
/// - [250] bool flagB
/// - [251] bool flagC
/// - [252] bool flagD
/// - [253] bool flagE
/// - [254] bool flagF
/// - [255] bool flagG
bytes32 internal _gameRules =
0x0026ea60096009602ee03e805dc0bb802ee03e805dc0bb80003c096012c02ee1;
/// @notice The maximum supply
uint64 internal _maxSupply;
/// @notice The current circulating supply
uint64 internal _totalSupply;
/// @notice The current circulating energy
int256 internal _circulatingEnergy;
/// @notice Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) internal _operatorApprovals;
/// @notice Mapping from token ID to approved address.
mapping(uint256 => address) internal _tokenApprovals;
/// @notice Track the royalty info: address to receive royalties, and
/// royalty basis points.
RoyaltyInfo _royaltyInfo;
/// @notice AllowList of marketplaces
mapping(address => bool) internal _allowedOperators;
/**
* @notice Deploy the token contract with its name and symbol.
*/
constructor(address admin, address[] memory allowedSeaDrop) {
_setOwner(msg.sender);
_setRole(admin, 0, true);
// Put the length on the stack for more efficient access.
uint256 allowedSeaDropLength = allowedSeaDrop.length;
// Set the mapping for allowed SeaDrop contracts.
for (uint256 i = 0; i < allowedSeaDropLength; ) {
_allowedSeaDrop[allowedSeaDrop[i]] = true;
unchecked {
++i;
}
}
GlitchGeneralMintSpots _ordinalsVouchers = new GlitchGeneralMintSpots();
ordinalsVouchers = address(_ordinalsVouchers);
_royaltyInfo.royaltyBps = 500;
_royaltyInfo.royaltyAddress = msg.sender;
emit SeaDropTokenDeployed();
emit OrdinalsVouchersDeployed(ordinalsVouchers);
}
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
*/
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
/**
* @dev Returns the total number of energy in circulation
*/
function circulatingEnergy() external view returns (int256) {
return _circulatingEnergy;
}
/**
* @notice Returns the token collection name.
*/
function name() external pure override returns (string memory) {
return NAME;
}
/**
* @notice Returns the token collection symbol.
*/
function symbol() external pure override returns (string memory) {
return SYMBOL;
}
/**
* @notice Checks wether a token exists or not
*/
function exists(uint256 tokenId) external view returns(bool) {
address potentialOwner = address(uint160(tokenId));
return _playerData[potentialOwner].isHolder();
}
/**
* @notice Returns the expected ball size in the SVG
*/
function _getBallSize(uint32 x) internal pure returns (uint256) {
if (x < 150) return x;
if (x < 1000) return 150 + (x - 150) / 20;
if (x < 4000) return 193 + (x - 1000) / 30;
if (x < 10000) return 293 + (x - 4000) / 80;
if (x < 300000) return 368 + (x - 10000) / 2200;
return 500;
}
/**
* @notice Returns the expected center of the ball in the SVG
*/
function _getCenter(uint256 x) internal pure returns (uint256) {
if (x < 150) return 1000 + x / 4;
if (x < 1000) return 1070 - x / 5;
if (x < 4000) return 870 - (x - 1000) / 20;
if (x < 9500) return 720 - (x - 4000) / 25;
return 500;
}
/**
* @notice Special metadata for dead tokens
*/
function _deadToken() internal pure returns (string memory) {
string memory svgData = string(abi.encodePacked(
"<svg viewBox='0 0 1e3 1e3' xmlns='http://www.w3.org/2000/svg'><style>svg{background:#000000}</style></svg>"
));
return string(
abi.encodePacked(
'data:application/json,{"name":"Energy Waste","image_data":"',
svgData,
'","attributes":[{"trait_type":"energy","value":0},',
'{"trait_type":"Game Passes","value":0},',
'{"trait_type":"Burned","value":"yes"}',
']}'
)
).uriEncode();
}
/**
* @notice Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(
uint256 tokenId
) public view virtual override returns (string memory) {
address potentialOwner = address(uint160(tokenId));
bytes32 data = _playerData[potentialOwner];
if (!data.isHolder()) {
return _deadToken();
}
int40 energy = data.getEnergy();
uint16 gamePasses = data.getGamePasses();
uint32 absEnergy = uint32(uint40(energy < 0 ? -energy : energy));
uint256 size = _getBallSize(absEnergy);
uint256 center = _getCenter(absEnergy);
bytes6 color = energy < 0 ? bytes6(bytes("B46278")) : bytes6(bytes("5C6BBA"));
bytes6 background = gamePasses == 0 ? bytes6(bytes("0B0B0B")) : bytes6(bytes("1B309F"));
string memory svgData = string(abi.encodePacked(
"<svg viewBox='0 0 1e3 1e3' xmlns='http://www.w3.org/2000/svg'><defs><radialGradient id='a' cx='500' cy='",
center.toString(),
"' r='",
size.toString(),
"' gradientUnits='userSpaceOnUse'><stop stop-color='#fff' stop-opacity='.6' offset='.17'/><stop stop-color='#fff' stop-opacity='0' offset='1'/></radialGradient></defs><circle cx='500' cy='",
center.toString(),
"' r='",
size.toString(),
"' fill='#",
color,
"'/><circle id='cg' cx='500' cy='",
center.toString(),
"' r='",
size.toString(),
"' fill='url(#a)' opacity='0'/><style>svg{background:#",
background,
"}#cg{-webkit-animation:1.5s ease-in-out infinite alternate p;animation:1.5s ease-in-out infinite alternate p}@-webkit-keyframes p{to{opacity:1}}@keyframes p{to{opacity:1}}</style></svg>"
));
return string(
abi.encodePacked(
'data:application/json,{"name":"Dark Energy: ',
int256(energy).toString(),
'","image_data":"',
svgData,
'","attributes":[{"trait_type":"Energy","value":"',
int256(energy).toString(),
'"},{"trait_type":"Game Passes","value":"',
uint256(gamePasses).toString(),
'"}]}'
)
).uriEncode();
}
/**
* @notice Returns the contract URI for contract metadata.
*/
function contractURI() external view override returns (string memory) {
return string(
abi.encodePacked(
'data:application/json,{"name":"',
NAME,
'","totalSupply":',
uint256(_totalSupply).toString(),
'}'
)
).uriEncode();
}
/**
* @notice Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*/
function approve(address to, uint256 tokenId) external virtual override {
address _owner = ownerOf(tokenId);
if (msg.sender != _owner) {
if (!_operatorApprovals[_owner][msg.sender]) {
revert CallerNotOwnerNorApproved();
}
}
_tokenApprovals[tokenId] = to;
emit Approval(_owner, to, tokenId);
}
/**
* @notice Returns the account approved for `tokenId` token.
*/
function getApproved(
uint256 tokenId
) public view virtual override returns (address) {
ownerOf(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @notice Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom}, {safeTransferFrom} or {approve}
* for any token owned by the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(
address operator,
bool approved
) public virtual override {
if (!_allowedOperators[operator]) {
revert OperatorNotAllowed();
}
_operatorApprovals[msg.sender][operator] = approved;
emit ApprovalForAll(msg.sender, operator, approved);
}
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(
address owner,
address operator
) external view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
function _transferFrom(address from, address to, uint256 tokenId) internal {
address potentialOwner = ownerOf(tokenId);
if (potentialOwner != from) revert TransferFromIncorrectOwner();
if (to == address(0)) revert QueryForZeroAddress();
if (!_isApprovedOrOwner(msg.sender, tokenId))
revert CallerNotOwnerNorApproved();
if (from != msg.sender && !_allowedOperators[msg.sender])
revert OperatorNotAllowed();
bytes32 senderData = _playerData[from];
bytes32 recipientData = _playerData[to];
int40 senderEnergy = senderData.getEnergy();
int40 recipientEnergy = recipientData.getEnergy();
uint256 newTokenId = uint256(uint160(to));
emit Transfer(from, to, tokenId);
if (recipientData.isHolder()) {
if (senderEnergy < 0 && recipientEnergy >= 0)
revert NegativeEnergyToPositiveHolder();
recipientEnergy += senderEnergy;
uint256 realTotalGamePasses;
unchecked {
realTotalGamePasses = senderData.getGamePasses() +
recipientData.getGamePasses();
}
uint16 gamePasses = realTotalGamePasses > 0xFFFF
? 0xFFFF
: uint16(realTotalGamePasses);
uint16 mergeCount = recipientData.getMergeCount();
recipientData = recipientData.setHolder(true);
recipientData = recipientData.setEnergy(recipientEnergy);
recipientData = recipientData.setGamePasses(gamePasses);
recipientData = recipientData.setMergeCount(mergeCount + 1);
unchecked {
_totalSupply--;
}
} else {
recipientData = recipientData.setHoldingData(senderData);
emit Transfer(address(0), to, newTokenId);
}
_playerData[from] = senderData.clearHoldingData();
_playerData[to] = recipientData;
_tokenApprovals[tokenId] = address(0);
// Burn of the sent token
emit Transfer(to, address(0), tokenId);
emit MetadataUpdate(tokenId);
emit MetadataUpdate(newTokenId);
}
function _safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal {
_transferFrom(from, to, tokenId);
if (to.code.length != 0)
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
/**
* @notice Transfers `tokenId` from `from` to `to`.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external override {
_transferFrom(from, to, tokenId);
}
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
_safeTransferFrom(from, to, tokenId, "");
}
/**
* @notice Safely transfers `tokenId` token from `from` to `to`.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
_safeTransferFrom(from, to, tokenId, _data);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*/
function _mint(
address to,
uint16 quantity
) internal virtual returns (uint256) {
uint256 tokenId = uint256(uint160(to));
bytes32 data = _playerData[to];
uint16 mintCount = data.getMintCount();
int40 energy = data.getEnergy();
unchecked {
energy += int40(uint40(quantity * ENERGY_PER_MINT));
mintCount += quantity;
}
uint16 gamePasses = 0;
bool isHolder = data.isHolder();
if (quantity >= 4) {
unchecked { gamePasses = uint16(quantity / 4); }
}
uint8 remainder = uint8(quantity % 4);
for (uint256 i = 0; i < remainder;) {
uint256 base;
unchecked {
base = block.prevrandao - i;
++i;
}
uint256 n = uint256(keccak256(abi.encode(base))) % 120000;
if (n < _gameRules.getUint16(225)) {
unchecked { gamePasses++; }
}
}
if (isHolder) {
uint16 mergeCount = data.getMergeCount();
data = data.setMergeCount(mergeCount + 1);
} else {
unchecked { _totalSupply++; }
if (_totalSupply > _maxSupply) {
revert MaxSupplyExceeded();
}
emit Transfer(address(0), to, tokenId);
}
data = data.setHolder(true);
data = data.setEnergy(energy);
data = data.setGamePasses(gamePasses + data.getGamePasses());
data = data.setMintCount(mintCount);
_playerData[to] = data;
unchecked { _circulatingEnergy += int256(ENERGY_PER_MINT * quantity); }
emit GlitchMint(to, quantity * ENERGY_PER_MINT, gamePasses);
emit MetadataUpdate(tokenId);
return isHolder ? 0 : tokenId;
}
function _noRiskEarn(int40 amount, bytes32 data) internal {
_circulatingEnergy += amount;
uint256 tokenId = uint256(uint160(msg.sender));
int40 energy = data.getEnergy();
uint16 winCount = data.getNoRiskWinCount();
uint32 totalEarned = data.getTotalEarned();
data = data.setEnergy(energy + amount);
data = data.setNoRiskWinCount(winCount + 1);
data = data.setTotalEarned(totalEarned + uint32(uint40(amount)));
_playerData[msg.sender] = data;
emit EnergyUpdate(msg.sender, int40(amount));
emit MetadataUpdate(tokenId);
}
function _winOrdinal(address winner, bytes32 data) internal {
uint256 tokenId = uint256(uint160(winner));
int40 energy = data.getEnergy();
_circulatingEnergy -= energy;
data = data.setEnergy(int40(0));
_playerData[winner] = data;
GlitchGeneralMintSpots vouchers = GlitchGeneralMintSpots(ordinalsVouchers);
uint256 voucherId = vouchers.nextId();
if (energy < 0) {
energy = -energy;
}
uint256 ballSize = _getBallSize(uint32(uint40(energy)));
vouchers.adminMint(winner, voucherId, ballSize);
emit MetadataUpdate(tokenId);
emit OrdinalWon(winner);
}
function _highStakesResult(int40 result, bytes32 data) internal {
_circulatingEnergy += result;
uint256 tokenId = uint256(uint160(msg.sender));
emit EnergyUpdate(msg.sender, result);
data = data.setEnergy(data.getEnergy() + result);
if (result < 0) {
result = -result;
data = data.setHighStakesLossCount(
data.getHighStakesLossCount() + 1
);
data = data.setTotalRugged(
data.getTotalRugged() + uint32(uint40(result))
);
} else {
data = data.setHighStakesWinCount(
data.getHighStakesWinCount() + 1
);
data = data.setTotalEarned(
data.getTotalEarned() + uint32(uint40(result))
);
}
_playerData[msg.sender] = data;
emit MetadataUpdate(tokenId);
}
function playNoRisk() external {
if (!_gameRules.getBool(0)) {
revert GameNotActive();
}
emit PlayNoRisk(msg.sender);
bytes32 data = _playerData[msg.sender];
uint16 gamePasses = data.getGamePasses();
if (gamePasses == 0) {
revert NoGamePass();
}
data = data.setNoRiskPlayCount(data.getNoRiskPlayCount() + 1);
data = data.setGamePasses(gamePasses - 1);
bytes32 rules = _gameRules;
uint256 randomNumber = uint256(
keccak256(abi.encode(block.prevrandao))
) % 120000;
uint32 treshold = rules.getUint16(1);
if (randomNumber < treshold) {
_noRiskEarn(100, data);
return;
}
treshold += rules.getUint16(17);
if (randomNumber < treshold) {
_noRiskEarn(300, data);
return;
}
treshold += rules.getUint16(33);
if (randomNumber < treshold) {
_noRiskEarn(500, data);
return;
}
_playerData[msg.sender] = data;
emit MetadataUpdate(uint256(uint160(msg.sender)));
}
function playHighStakes() external {
if (!_gameRules.getBool(0)) {
revert GameNotActive();
}
emit PlayHighStakes(msg.sender);
bytes32 data = _playerData[msg.sender];
uint16 gamePasses = data.getGamePasses();
if (gamePasses == 0) {
revert NoGamePass();
}
data = data.setHighStakesPlayCount(data.getHighStakesPlayCount() + 1);
data = data.setGamePasses(gamePasses - 1);
bytes32 rules = _gameRules;
uint256 randomNumber = uint256(
keccak256(abi.encode(block.prevrandao))
) % 120000;
uint32 treshold = uint32(rules.getUint16(49)) * uint32(rules.getUint8(241));
if (randomNumber < treshold) {
_gameRules = _gameRules.setUint8(241, _gameRules.getUint8(241) - 1);
return _winOrdinal(msg.sender, data);
}
treshold = rules.getUint16(65);
if (randomNumber < treshold) {
return _highStakesResult(-100, data);
}
treshold += rules.getUint16(81);
if (randomNumber < treshold) {
return _highStakesResult(-300, data);
}
treshold += rules.getUint16(97);
if (randomNumber < treshold) {
return _highStakesResult(-500, data);
}
treshold += rules.getUint16(113);
if (randomNumber < treshold) {
return _highStakesResult(-1000, data);
}
treshold += rules.getUint16(129);
if (randomNumber < treshold) {
return _highStakesResult(100, data);
}
treshold += rules.getUint16(145);
if (randomNumber < treshold) {
return _highStakesResult(300, data);
}
treshold += rules.getUint16(161);
if (randomNumber < treshold) {
return _highStakesResult(500, data);
}
treshold += rules.getUint16(177);
if (randomNumber < treshold) {
return _highStakesResult(1000, data);
}
int40 energy = data.getEnergy();
uint256 tokenId = uint256(uint160(msg.sender));
treshold += rules.getUint16(193);
if (randomNumber < treshold && energy != 0) {
emit EnergyDoubled(msg.sender, energy);
return _highStakesResult(energy, data);
}
treshold += rules.getUint16(209);
if (randomNumber < treshold && energy != 0) {
emit EnergyHalved(msg.sender, energy);
int40 diff = energy / 2;
return _highStakesResult(-diff, data);
}
_playerData[msg.sender] = data;
emit MetadataUpdate(tokenId);
}
/**
* @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
*
* `from` - Previous owner of the given token ID.
* `to` - Target address that will receive the token.
* `tokenId` - Token ID to be transferred.
* `_data` - Optional data to send along with the call.
*
* Returns whether the call correctly returned the expected magic value.
*/
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try
IERC721Receiver(to).onERC721Received(
msg.sender,
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
}
assembly {
revert(add(32, reason), mload(reason))
}
}
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
uint256 tokenId = _mint(to, uint16(quantity));
if (tokenId == 0) {
return;
}
unchecked {
if (to.code.length != 0) {
if (
!_checkContractOnERC721Received(
address(0),
to,
tokenId,
_data
)
) {
revert TransferToNonERC721ReceiverImplementer();
}
}
}
}
function _onlyAllowedSeaDrop(address seaDrop) internal view {
if (!_allowedSeaDrop[seaDrop]) {
revert OnlyAllowedSeaDrop();
}
}
/**
* @notice Mint tokens, restricted to the SeaDrop contract.
*/
function mintSeaDrop(
address minter,
uint256 quantity
) external override nonReentrant {
_onlyAllowedSeaDrop(msg.sender);
_safeMint(minter, quantity, "");
}
/**
* @notice Mint tokens, restricted to the SeaDrop contract.
*/
function adminMint(
address minter,
int40 energy,
uint16 gamePasses
) external nonReentrant {
_checkRoleOrOwner(msg.sender, 1);
_safeMint(minter, 0, "");
bytes32 data = _playerData[minter];
emit AdminMint(minter, energy - data.getEnergy(), gamePasses - data.getGamePasses());
_circulatingEnergy += energy - data.getEnergy();
data = data.setEnergy(energy);
data = data.setGamePasses(gamePasses);
_playerData[minter] = data;
}
/**
* @notice Admin function to distribute rewards to the raffle winners
*/
function raffleReward(address winner) external nonReentrant {
_checkRoleOrOwner(msg.sender, 1);
bytes32 data = _playerData[winner];
if (!data.isHolder()) {
revert AddressNotHolder();
}
_winOrdinal(winner, data);
}
/**
* @notice Sets the address and basis points for royalties.
*
* @param newInfo The struct to configure royalties.
*/
function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external {
// Ensure the sender is only the owner or contract itself.
_checkRoleOrOwner(msg.sender, 1);
// Revert if the new royalty address is the zero address.
if (newInfo.royaltyAddress == address(0)) {
revert RoyaltyAddressCannotBeZeroAddress();
}
// Revert if the new basis points is greater than 10_000.
if (newInfo.royaltyBps > 10_000) {
revert InvalidRoyaltyBasisPoints(newInfo.royaltyBps);
}
// Set the new royalty info.
_royaltyInfo = newInfo;
// Emit an event with the updated params.
emit RoyaltyInfoUpdated(newInfo.royaltyAddress, newInfo.royaltyBps);
}
/**
* @notice Returns the address that receives royalties.
*/
function royaltyAddress() external view returns (address) {
return _royaltyInfo.royaltyAddress;
}
/**
* @notice Returns the royalty basis points out of 10_000.
*/
function royaltyBasisPoints() external view returns (uint256) {
return _royaltyInfo.royaltyBps;
}
/**
* @notice Called with the sale price to determine how much royalty
* is owed and to whom.
*
* @return receiver Address of who should be sent the royalty payment.
* @return royaltyAmount The royalty payment amount for _salePrice.
*/
function royaltyInfo(
uint256,
uint256 _salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
royaltyAmount = (_salePrice * _royaltyInfo.royaltyBps) / 10_000;
receiver = _royaltyInfo.royaltyAddress;
}
/**
* @dev Returns whether `tokenId` exists.
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
address potentialOwner = address(uint160(tokenId));
return _playerData[potentialOwner].isHolder();
}
/**
* @dev Returns whether `address` is approved for transfering `tokenId`
*/
function _isApprovedOrOwner(
address spender,
uint256 tokenId
) internal view returns (bool) {
address potentialOwner = ownerOf(tokenId);
if (spender == potentialOwner) return true;
return spender == _tokenApprovals[tokenId] ||
_operatorApprovals[potentialOwner][spender];
}
/**
* @notice Returns whether the interface is supported.
*
* @param interfaceId The interface id to check against.
*/
function supportsInterface(
bytes4 interfaceId
) public view virtual override(IDarkEnergy) returns (bool) {
return
interfaceId == 0x01ffc9a7 || // ER165
interfaceId == 0x80ac58cd || // ERC721
interfaceId == 0x5b5e139f || // ERC721-Metadata
interfaceId == 0x2a55205a || // ERC2981
interfaceId == 0x49064906 || // ERC4906
interfaceId == type(INonFungibleSeaDropToken).interfaceId ||
interfaceId == type(ISeaDropTokenContractMetadata).interfaceId;
}
// =============================================================
// Game configuration
// =============================================================
function _checkNoRiskOdds(
uint16 earn1,
uint16 earn3,
uint16 earn5
) internal pure {
uint256 total = earn1 + earn3 + earn5;
if (total > 120000) {
revert InvalidGameRules();
}
}
function _checkHighStakesOdds(
uint16 lose1,
uint16 lose3,
uint16 lose5,
uint16 lose10,
uint16 earn1,
uint16 earn3,
uint16 earn5,
uint16 earn10,
uint16 double,
uint16 halve
) internal pure {
uint256 total = lose1 + lose3 + lose5;
total = total + lose10 + earn1;
total = total + earn3 + earn5;
total = total + earn10 + double + halve;
if (total > 120000) {
revert InvalidGameRules();
}
}
function _checkOrdinalsRules(
uint16 odds,
uint8 amount
) internal pure {
uint256 total = uint256(odds) * uint256(amount);
if (total > 120000) {
revert InvalidGameRules();
}
}
function setRules(
DarkEnergyPackedStruct.GameRules calldata config
) external {
_checkRoleOrOwner(msg.sender, 1);
_checkNoRiskOdds(
config.oddsNoRiskEarn100,
config.oddsNoRiskEarn300,
config.oddsNoRiskEarn500
);
_checkHighStakesOdds(
config.oddsHighStakesLose100,
config.oddsHighStakesLose300,
config.oddsHighStakesLose500,
config.oddsHighStakesLose1000,
config.oddsHighStakesEarn100,
config.oddsHighStakesEarn300,
config.oddsHighStakesEarn500,
config.oddsHighStakesEarn1000,
config.oddsHighStakesDoubles,
config.oddsHighStakesHalves
);
_checkOrdinalsRules(
config.oddsHighStakesWinOrdinal,
config.remainingOrdinals
);
bytes32 newRules = config.packGameRules();
emit GameRulesUpdated(_gameRules, newRules);
_gameRules = newRules;
}
function gameRules()
external
view
returns (DarkEnergyPackedStruct.GameRules memory) {
return _gameRules.gameRules();
}
// =============================================================
// Administrative functions
// =============================================================
/**
* @notice Sets the max token supply and emits an event.
*
* @param operator The operator account or contract address
* @param status The status (true = approved, false = denied)
*/
function setOperatorStatus(address operator, bool status) external {
_checkRoleOrOwner(msg.sender, 1);
_allowedOperators[operator] = status;
}
/**
* @notice Sets the max token supply and emits an event.
*
* @param newMaxSupply The new max supply to set.
*/
function setMaxSupply(uint256 newMaxSupply) external {
_checkRoleOrOwner(msg.sender, 1);
uint64 supply = uint64(newMaxSupply);
if (supply < _totalSupply) {
supply = _totalSupply;
}
_maxSupply = supply;
emit MaxSupplyUpdated(supply);
}
/**
* @notice Internal function to update the allowed SeaDrop contracts.
*
* @param allowedSeaDrop The allowed SeaDrop addresses.
*/
function _updateAllowedSeaDrop(address[] calldata allowedSeaDrop) internal {
// Put the length on the stack for more efficient access.
uint256 enumeratedAllowedSeaDropLength = _enumeratedAllowedSeaDrop
.length;
uint256 allowedSeaDropLength = allowedSeaDrop.length;
// Reset the old mapping.
for (uint256 i = 0; i < enumeratedAllowedSeaDropLength; ) {
_allowedSeaDrop[_enumeratedAllowedSeaDrop[i]] = false;
unchecked {
++i;
}
}
// Set the new mapping for allowed SeaDrop contracts.
for (uint256 i = 0; i < allowedSeaDropLength; ) {
_allowedSeaDrop[allowedSeaDrop[i]] = true;
unchecked {
++i;
}
}
// Set the enumeration.
_enumeratedAllowedSeaDrop = allowedSeaDrop;
// Emit an event for the update.
emit AllowedSeaDropUpdated(allowedSeaDrop);
}
function updateAllowedSeaDrop(address[] calldata allowedSeaDrop) external {
_checkRoleOrOwner(msg.sender, 0);
_updateAllowedSeaDrop(allowedSeaDrop);
}
function updateCreatorPayoutAddress(
address seaDrop,
address creator
) external {
_checkRoleOrOwner(msg.sender, 1);
_onlyAllowedSeaDrop(seaDrop);
ISeaDrop(seaDrop).updateCreatorPayoutAddress(creator);
}
function updatePublicDrop(
address seaDrop,
PublicDrop memory dropData
) external {
_checkRoleOrOwner(msg.sender, 0);
_onlyAllowedSeaDrop(seaDrop);
PublicDrop memory r = ISeaDrop(seaDrop).getPublicDrop(address(this));
if (!_hasRole(msg.sender, 0)) {
if (r.maxTotalMintableByWallet == 0) {
revert AdministratorMustInitializeWithFee();
}
dropData.feeBps = r.feeBps;
dropData.restrictFeeRecipients = true;
} else {
uint256 maxTotalMintableByWallet = r.maxTotalMintableByWallet;
r.maxTotalMintableByWallet = maxTotalMintableByWallet > 0 ?
uint16(maxTotalMintableByWallet) :
1;
r.feeBps = dropData.feeBps;
r.restrictFeeRecipients = true;
dropData = r;
}
ISeaDrop(seaDrop).updatePublicDrop(dropData);
}
/**
* @notice Update the drop URI for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param dropURI The new drop URI.
*/
function updateDropURI(address seaDropImpl, string calldata dropURI)
external
virtual
override
{
_checkRoleOrOwner(msg.sender, 0);
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the drop URI.
ISeaDrop(seaDropImpl).updateDropURI(dropURI);
}
/**
* @notice Update the allow list data for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowListData The allow list data.
*/
function updateAllowList(
address seaDropImpl,
AllowListData calldata allowListData
) external virtual override {
_checkRoleOrOwner(msg.sender, 0);
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the allow list on SeaDrop.
ISeaDrop(seaDropImpl).updateAllowList(allowListData);
}
/**
* @notice Update the allowed fee recipient for this nft contract
* on SeaDrop.
* Only the administrator can set the allowed fee recipient.
*
* @param seaDrop The allowed SeaDrop contract.
* @param feeRecipient The new fee recipient.
* @param status If the fee recipient is allowed.
*/
function updateAllowedFeeRecipient(
address seaDrop,
address feeRecipient,
bool status
) external {
_checkRole(msg.sender, 0);
_onlyAllowedSeaDrop(seaDrop);
ISeaDrop(seaDrop).updateAllowedFeeRecipient(feeRecipient, status);
}
/**
* @notice Update the allowed payers for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payer The payer to update.
* @param allowed Whether the payer is allowed.
*/
function updatePayer(
address seaDropImpl,
address payer,
bool allowed
) external virtual override {
_checkRoleOrOwner(msg.sender, 0);
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the payer.
ISeaDrop(seaDropImpl).updatePayer(payer, allowed);
}
/**
* @notice Configure multiple properties at a time.
*
* Note: The individual configure methods should be used
* to unset or reset any properties to zero, as this method
* will ignore zero-value properties in the config struct.
*
* @param config The configuration struct.
*/
function multiConfigure(MultiConfigureStruct calldata config)
external
{
_checkRoleOrOwner(msg.sender, 1);
if (config.maxSupply > 0) {
this.setMaxSupply(config.maxSupply);
}
if (
config.publicDrop.startTime != 0 ||
config.publicDrop.endTime != 0
) {
this.updatePublicDrop(config.seaDropImpl, config.publicDrop);
}
if (bytes(config.dropURI).length != 0) {
this.updateDropURI(config.seaDropImpl, config.dropURI);
}
if (config.allowListData.merkleRoot != bytes32(0)) {
this.updateAllowList(config.seaDropImpl, config.allowListData);
}
if (config.creatorPayoutAddress != address(0)) {
this.updateCreatorPayoutAddress(
config.seaDropImpl,
config.creatorPayoutAddress
);
}
if (config.allowedFeeRecipients.length > 0) {
for (uint256 i = 0; i < config.allowedFeeRecipients.length; ) {
this.updateAllowedFeeRecipient(
config.seaDropImpl,
config.allowedFeeRecipients[i],
true
);
unchecked {
++i;
}
}
}
if (config.disallowedFeeRecipients.length > 0) {
for (uint256 i = 0; i < config.disallowedFeeRecipients.length; ) {
this.updateAllowedFeeRecipient(
config.seaDropImpl,
config.disallowedFeeRecipients[i],
false
);
unchecked {
++i;
}
}
}
if (config.allowedPayers.length > 0) {
for (uint256 i = 0; i < config.allowedPayers.length; ) {
this.updatePayer(
config.seaDropImpl,
config.allowedPayers[i],
true
);
unchecked {
++i;
}
}
}
if (config.disallowedPayers.length > 0) {
for (uint256 i = 0; i < config.disallowedPayers.length; ) {
this.updatePayer(
config.seaDropImpl,
config.disallowedPayers[i],
false
);
unchecked {
++i;
}
}
}
}
// =============================================================
// No-op or low-op functions to ensure compatibility
// =============================================================
function setBaseURI(string calldata) external override {}
function setContractURI(string calldata) external override {}
function setProvenanceHash(bytes32) external {}
function updateSignedMintValidationParams(
address,
address,
SignedMintValidationParams memory
) external {}
function updateTokenGatedDrop(
address,
address,
TokenGatedDropStage calldata
) external {}
function baseURI() external pure override returns (string memory) {
return "";
}
// =============================================================
// NFT and Game stats
// =============================================================
function maxSupply() external view returns (uint256) {
return _maxSupply;
}
function provenanceHash() external pure override returns (bytes32) {
return bytes32(0);
}
function getMintStats(
address minter
) external view returns (uint256, uint256, uint256) {
bytes32 data = _playerData[minter];
return (
uint256(data.getMintCount()),
_totalSupply,
_maxSupply
);
}
/**
* @notice Returns the address that owns the given token.
*
* @dev The tokenId is the numeric representation of the owner's address.
* If that address holds a token, its last bit will be 1 and we can
* return the address representation of the tokenId. If not, then
* the token doesn't exist.
*/
function ownerOf(
uint256 tokenId
) public view virtual override returns (address) {
address potentialOwner = address(uint160(tokenId));
if (!_playerData[potentialOwner].isHolder()) {
revert QueryForNonExistentToken();
}
return potentialOwner;
}
/**
* @notice Returns the number of tokens in `owner`'s account.
*
* @dev An address may have at most one token. If the data of an
address has 1 as a last bit, then that address has a token.
*/
function balanceOf(address _owner) public view override returns (uint256) {
if (_owner == address(0)) {
revert QueryForZeroAddress();
}
bool isHolder = _playerData[_owner].isHolder();
if (isHolder) {
return 1;
}
return 0;
}
/**
* @notice Returns the amount of energy in a given tokenId
*/
function playerData(
address player
) external view returns (DarkEnergyPackedStruct.PlayerData memory) {
return _playerData[player].playerData();
}
}
合同源代码
文件 4 的 24：DarkEnergyPackedStruct.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
library DarkEnergyPackedStruct {
// =============================================================
// Structs
// =============================================================
/// @dev All 256 bits from a PlayerData (from right to left)
struct PlayerData {
bool isHolder;
int40 energyAmount;
uint16 gamePasses;
uint16 mintCount;
uint16 mergeCount;
uint16 noRiskPlayCount;
uint16 noRiskWinCount;
uint16 highStakesPlayCount;
uint16 highStakesWinCount;
uint16 highStakesLossCount;
uint32 totalEarned;
uint32 totalRugged;
uint16 unused;
bool flagA;
bool flagB;
bool flagC;
bool flagD;
bool flagE;
bool flagF;
bool flagG;
}
/// @dev All 256 bits from a GameRules (from right to left)
struct GameRules {
bool isActive;
uint16 oddsNoRiskEarn100;
uint16 oddsNoRiskEarn300;
uint16 oddsNoRiskEarn500;
uint16 oddsHighStakesWinOrdinal;
uint16 oddsHighStakesLose100;
uint16 oddsHighStakesLose300;
uint16 oddsHighStakesLose500;
uint16 oddsHighStakesLose1000;
uint16 oddsHighStakesEarn100;
uint16 oddsHighStakesEarn300;
uint16 oddsHighStakesEarn500;
uint16 oddsHighStakesEarn1000;
uint16 oddsHighStakesDoubles;
uint16 oddsHighStakesHalves;
uint16 oddsGamePassOnMint;
uint8 remainingOrdinals;
bool flagA;
bool flagB;
bool flagC;
bool flagD;
bool flagE;
bool flagF;
bool flagG;
}
// =============================================================
// Unpacking by type and offset
// =============================================================
/**
* @dev unpack bit [offset] (bool)
*/
function getBool(bytes32 p, uint8 offset) internal pure returns (bool r) {
assembly {
r := and(shr(offset, p), 1)
}
}
/**
* @dev unpack bits [offset..offset + 8]
*/
function getUint8(bytes32 p, uint8 offset) internal pure returns (uint8 r) {
assembly {
r := and(shr(offset, p), 0xFF)
}
}
/**
* @dev unpack bits [offset..offset + 16]
*/
function getUint16(
bytes32 p,
uint8 offset
) internal pure returns (uint16 r) {
assembly {
r := and(shr(offset, p), 0xFFFF)
}
}
/**
* @dev unpack bits [offset..offset + 32]
*/
function getUint32(
bytes32 p,
uint8 offset
) internal pure returns (uint32 r) {
assembly {
r := and(shr(offset, p), 0xFFFFFFFF)
}
}
/**
* @dev unpack bits[offset..offset + 40]
*/
function getInt40(bytes32 p, uint8 offset) internal pure returns (int40 r) {
assembly {
r := and(shr(offset, p), 0xFFFFFFFFFF)
}
}
// =============================================================
// Unpacking whole structs
// =============================================================
function playerData(bytes32 p) internal pure returns (PlayerData memory r) {
return
PlayerData({
isHolder: getBool(p, 0),
energyAmount: getInt40(p, 1),
gamePasses: getUint16(p, 41),
mintCount: getUint16(p, 57),
mergeCount: getUint16(p, 73),
noRiskPlayCount: getUint16(p, 89),
noRiskWinCount: getUint16(p, 105),
highStakesPlayCount: getUint16(p, 121),
highStakesWinCount: getUint16(p, 137),
highStakesLossCount: getUint16(p, 153),
totalEarned: getUint32(p, 169),
totalRugged: getUint32(p, 201),
unused: getUint16(p, 169),
flagA: getBool(p, 249),
flagB: getBool(p, 250),
flagC: getBool(p, 251),
flagD: getBool(p, 252),
flagE: getBool(p, 253),
flagF: getBool(p, 254),
flagG: getBool(p, 255)
});
}
function gameRules(bytes32 p) internal pure returns (GameRules memory r) {
return
GameRules({
isActive: getBool(p, 0),
oddsNoRiskEarn100: getUint16(p, 1),
oddsNoRiskEarn300: getUint16(p, 17),
oddsNoRiskEarn500: getUint16(p, 33),
oddsHighStakesWinOrdinal: getUint16(p, 49),
oddsHighStakesLose100: getUint16(p, 65),
oddsHighStakesLose300: getUint16(p, 81),
oddsHighStakesLose500: getUint16(p, 97),
oddsHighStakesLose1000: getUint16(p, 113),
oddsHighStakesEarn100: getUint16(p, 129),
oddsHighStakesEarn300: getUint16(p, 145),
oddsHighStakesEarn500: getUint16(p, 161),
oddsHighStakesEarn1000: getUint16(p, 177),
oddsHighStakesDoubles: getUint16(p, 193),
oddsHighStakesHalves: getUint16(p, 209),
oddsGamePassOnMint: getUint16(p, 225),
remainingOrdinals: getUint8(p, 241),
flagA: getBool(p, 249),
flagB: getBool(p, 250),
flagC: getBool(p, 251),
flagD: getBool(p, 252),
flagE: getBool(p, 253),
flagF: getBool(p, 254),
flagG: getBool(p, 255)
});
}
// =============================================================
// Setting Bits
// =============================================================
/**
* @dev set bit [{offset}] to {value}
*/
function setBit(
bytes32 p,
uint8 offset,
bool value
) internal pure returns (bytes32 np) {
assembly {
np := or(
and(
p,
xor(
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
shl(offset, 1)
)
),
shl(offset, value)
)
}
}
/**
* @dev set 8 bits to {value} at [{offset}]
*/
function setUint8(
bytes32 p,
uint8 offset,
uint8 value
) internal pure returns (bytes32 np) {
assembly {
np := or(
and(
p,
xor(
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
shl(offset, 0xFF)
)
),
shl(offset, and(value, 0xFF))
)
}
}
/**
* @dev set 16 bits to {value} at [{offset}]
*/
function setUint16(
bytes32 p,
uint8 offset,
uint16 value
) internal pure returns (bytes32 np) {
assembly {
np := or(
and(
p,
xor(
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
shl(offset, 0xFFFF)
)
),
shl(offset, and(value, 0xFFFF))
)
}
}
/**
* @dev set 32 bits to {value} at [{offset}]
*/
function setUint32(
bytes32 p,
uint8 offset,
uint32 value
) internal pure returns (bytes32 np) {
assembly {
np := or(
and(
p,
xor(
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
shl(offset, 0xFFFFFFFF)
)
),
shl(offset, and(value, 0xFFFFFFFF))
)
}
}
/**
* @dev set 40 bits to {value} at [{offset}]
*/
function setInt40(
bytes32 p,
uint8 offset,
int40 value
) internal pure returns (bytes32 np) {
assembly {
np := or(
and(
p,
xor(
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
shl(offset, 0xFFFFFFFFFF)
)
),
shl(offset, and(value, 0xFFFFFFFFFF))
)
}
}
// =============================================================
// DarkEnergy-specific
// =============================================================
/**
* @dev get _playerData.isHolder
*/
function isHolder(bytes32 p) internal pure returns (bool) {
return getBool(p, 0);
}
/**
* @dev get _playerData.energyAmount
*/
function getEnergy(bytes32 p) internal pure returns (int40) {
return getInt40(p, 1);
}
/**
* @dev get _playerData.gamePasses
*/
function getGamePasses(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 41);
}
/**
* @dev get _playerData.mintCount
*/
function getMintCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 57);
}
/**
* @dev get _playerData.mergeCount
*/
function getMergeCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 73);
}
/**
* @dev get _playerData.noRiskPlayCount
*/
function getNoRiskPlayCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 89);
}
/**
* @dev get _playerData.noRiskWinCount
*/
function getNoRiskWinCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 105);
}
/**
* @dev get _playerData.highStakesPlayCount
*/
function getHighStakesPlayCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 121);
}
/**
* @dev get _playerData.highStakesWinCount
*/
function getHighStakesWinCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 137);
}
/**
* @dev get _playerData.highStakesLossCount
*/
function getHighStakesLossCount(bytes32 p) internal pure returns (uint16) {
return getUint16(p, 153);
}
/**
* @dev get _playerData.totalEarned
*/
function getTotalEarned(bytes32 p) internal pure returns (uint32) {
return getUint32(p, 169);
}
/**
* @dev get _playerData.totalRugged
*/
function getTotalRugged(bytes32 p) internal pure returns (uint32) {
return getUint32(p, 201);
}
/**
* @dev sets _playerData.isHolder
*/
function setHolder(bytes32 p, bool status) internal pure returns (bytes32 np) {
return setBit(p, 0, status);
}
/**
* @dev sets _playerData.energyAmount
*/
function setEnergy(bytes32 p, int40 value) internal pure returns (bytes32 np) {
return setInt40(p, 1, value);
}
/**
* @dev sets _playerData.gamePasses
*/
function setGamePasses(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 41, value);
}
/**
* @dev sets _playerData.mintCount
*/
function setMintCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 57, value);
}
/**
* @dev sets _playerData.mergeCount
*/
function setMergeCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 73, value);
}
/**
* @dev sets _playerData.noRiskPlayCount
*/
function setNoRiskPlayCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 89, value);
}
/**
* @dev sets _playerData.noRiskWinCount
*/
function setNoRiskWinCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 105, value);
}
/**
* @dev sets _playerData.highStakesPlayCount
*/
function setHighStakesPlayCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 121, value);
}
/**
* @dev sets _playerData.highStakesWinCount
*/
function setHighStakesWinCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 137, value);
}
/**
* @dev sets _playerData.highStakesLossCount
*/
function setHighStakesLossCount(bytes32 p, uint16 value) internal pure returns (bytes32 np) {
return setUint16(p, 153, value);
}
/**
* @dev sets _playerData.totalEarned
*/
function setTotalEarned(bytes32 p, uint32 value) internal pure returns (bytes32 np) {
return setUint32(p, 169, value);
}
/**
* @dev sets _playerData.totalRugged
*/
function setTotalRugged(bytes32 p, uint32 value) internal pure returns (bytes32 np) {
return setUint32(p, 201, value);
}
/**
* @dev Clears the last 57 bits (isHolder, energyAmount, gamePasses)
*/
function clearHoldingData(bytes32 p) internal pure returns (bytes32 np) {
assembly {
np := and(
p,
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE00000000000000
)
}
}
/**
* @dev Replace the last 57 bits (isHolder, energyAmount, gamePasses) from
* another packed bytes variable (to be used for transfers)
*/
function setHoldingData(
bytes32 p,
bytes32 q
) internal pure returns (bytes32 np) {
assembly {
np := or(
and(
p,
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE00000000000000
),
and(q, 0x1FFFFFFFFFFFFFF)
)
}
}
/**
* @dev tight-pack a GameRules struct into a uint256
*/
function packGameRules(
GameRules calldata
) internal pure returns (bytes32 result) {
assembly {
result := calldataload(4)
result := or(result, shl(1, calldataload(36)))
result := or(result, shl(17, calldataload(68)))
result := or(result, shl(33, calldataload(100)))
result := or(result, shl(49, calldataload(132)))
result := or(result, shl(65, calldataload(164)))
result := or(result, shl(81, calldataload(196)))
result := or(result, shl(97, calldataload(228)))
result := or(result, shl(113, calldataload(260)))
result := or(result, shl(129, calldataload(292)))
result := or(result, shl(145, calldataload(324)))
result := or(result, shl(161, calldataload(356)))
result := or(result, shl(177, calldataload(388)))
result := or(result, shl(193, calldataload(420)))
result := or(result, shl(209, calldataload(452)))
result := or(result, shl(225, calldataload(484)))
result := or(result, shl(241, calldataload(516)))
result := or(result, shl(249, calldataload(548)))
result := or(result, shl(250, calldataload(580)))
result := or(result, shl(251, calldataload(612)))
result := or(result, shl(252, calldataload(644)))
result := or(result, shl(253, calldataload(676)))
result := or(result, shl(254, calldataload(708)))
result := or(result, shl(255, calldataload(740)))
}
}
}
合同源代码
文件 5 的 24：ERC165.sol
// 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;
}
}
合同源代码
文件 6 的 24：ERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.2) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "../libraries/Strings.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, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string internal _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 = _ownerOf(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 or 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 or 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 or 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 the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @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 _ownerOf(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, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @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, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @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. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual {}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual {}
/**
* @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
*
* WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
* being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
* that `ownerOf(tokenId)` is `a`.
*/
// solhint-disable-next-line func-name-mixedcase
function __unsafe_increaseBalance(address account, uint256 amount) internal {
_balances[account] += amount;
}
}
合同源代码
文件 7 的 24：ERC721SeaDropStructsErrorsAndEvents.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import {
AllowListData,
PublicDrop,
SignedMintValidationParams,
TokenGatedDropStage
} from "../contracts/lib/SeaDropStructs.sol";
interface ERC721SeaDropStructsErrorsAndEvents {
/**
* @notice Revert with an error if mint exceeds the max supply.
*/
error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);
/**
* @notice Revert with an error if the number of token gated
* allowedNftTokens doesn't match the length of supplied
* drop stages.
*/
error TokenGatedMismatch();
/**
* @notice Revert with an error if the number of signers doesn't match
* the length of supplied signedMintValidationParams
*/
error SignersMismatch();
/**
* @notice A struct to configure multiple contract options at a time.
*/
struct MultiConfigureStruct {
uint256 maxSupply;
string baseURI;
string contractURI;
address seaDropImpl;
PublicDrop publicDrop;
string dropURI;
AllowListData allowListData;
address creatorPayoutAddress;
bytes32 provenanceHash;
address[] allowedFeeRecipients;
address[] disallowedFeeRecipients;
address[] allowedPayers;
address[] disallowedPayers;
// Token-gated
address[] tokenGatedAllowedNftTokens;
TokenGatedDropStage[] tokenGatedDropStages;
address[] disallowedTokenGatedAllowedNftTokens;
// Server-signed
address[] signers;
SignedMintValidationParams[] signedMintValidationParams;
address[] disallowedSigners;
}
}
合同源代码
文件 8 的 24：GlitchGeneralMintSpots.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;
import "./ERC721.sol";
import "../util/OwnableAndAdministrable.sol";
import "../libraries/UriEncode.sol";
contract GlitchGeneralMintSpots is ERC721, OwnableAndAdministrable {
using Strings for uint256;
using UriEncode for string;
/**
* @dev Revert if the royalty basis points is greater than 10_000.
*/
error InvalidRoyaltyBasisPoints(uint256 basisPoints);
/**
* @dev Revert if the royalty address is being set to the zero address.
*/
error RoyaltyAddressCannotBeZeroAddress();
/**
* @dev Emit an event when the royalties info is updated.
*/
event RoyaltyInfoUpdated(address receiver, uint256 bps);
/**
* @notice A struct defining royalty info for the contract.
*/
struct RoyaltyInfo {
address royaltyAddress;
uint96 royaltyBps;
}
/// @notice Track the royalty info: address to receive royalties, and
/// royalty basis points.
RoyaltyInfo _royaltyInfo;
uint256 private _tokenIdCounter = 1;
mapping(uint256 => uint256) private _tokenSize;
event MetadataUpdate(uint256 _tokenId);
address public darkEnergyContract;
constructor() ERC721("Glitchs Army: The Generals mint spot", "GMS") {
_setOwner(tx.origin);
_setRole(tx.origin, 0, true);
_setRole(msg.sender, 0, true);
_royaltyInfo.royaltyBps = 500;
_royaltyInfo.royaltyAddress = tx.origin;
darkEnergyContract = msg.sender;
}
/**
* @notice Returns whether the interface is supported.
*
* @param interfaceId The interface id to check against.
*/
function supportsInterface(
bytes4 interfaceId
) public view virtual override(ERC721) returns (bool) {
return
interfaceId == 0x01ffc9a7 || // ER165
interfaceId == 0x80ac58cd || // ERC721
interfaceId == 0x5b5e139f || // ERC721-Metadata
interfaceId == 0x2a55205a; // ERC2981
}
/**
* @notice Sets the address and basis points for royalties.
*
* @param newInfo The struct to configure royalties.
*/
function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external {
// Ensure the sender is only the owner or contract itself.
_checkRoleOrOwner(msg.sender, 1);
// Revert if the new royalty address is the zero address.
if (newInfo.royaltyAddress == address(0)) {
revert RoyaltyAddressCannotBeZeroAddress();
}
// Revert if the new basis points is greater than 10_000.
if (newInfo.royaltyBps > 10_000) {
revert InvalidRoyaltyBasisPoints(newInfo.royaltyBps);
}
// Set the new royalty info.
_royaltyInfo = newInfo;
// Emit an event with the updated params.
emit RoyaltyInfoUpdated(newInfo.royaltyAddress, newInfo.royaltyBps);
}
/**
* @notice Returns the address that receives royalties.
*/
function royaltyAddress() external view returns (address) {
return _royaltyInfo.royaltyAddress;
}
/**
* @notice Returns the royalty basis points out of 10_000.
*/
function royaltyBasisPoints() external view returns (uint256) {
return _royaltyInfo.royaltyBps;
}
/**
* @notice Called with the sale price to determine how much royalty
* is owed and to whom.
*
* @return receiver Address of who should be sent the royalty payment.
* @return royaltyAmount The royalty payment amount for _salePrice.
*/
function royaltyInfo(
uint256,
uint256 _salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
royaltyAmount = (_salePrice * _royaltyInfo.royaltyBps) / 10_000;
receiver = _royaltyInfo.royaltyAddress;
}
function adminMint(address to, uint256 tokenId, uint256 size) external {
_checkRoleOrOwner(msg.sender, 0);
if(tokenId == _tokenIdCounter) {
_tokenIdCounter++;
}
_tokenSize[tokenId] = size;
_safeMint(to, tokenId);
}
function adminBurn(uint256 tokenId) external {
_checkRoleOrOwner(msg.sender, 0);
_burn(tokenId);
}
function adminSetTokenSize(uint256 tokenId, uint256 size) external {
_checkRoleOrOwner(msg.sender, 0);
_requireMinted(tokenId);
_tokenSize[tokenId] = size;
emit MetadataUpdate(tokenId);
}
function nextId() external view returns(uint256) {
return _tokenIdCounter;
}
function tokenURI(uint256 tokenId) public view override returns(string memory) {
_requireMinted(tokenId);
uint256 size = _tokenSize[tokenId];
uint256 center = 500;
bytes6 color = bytes6(bytes("DDC159"));
bytes6 background = bytes6(bytes("0B0B0B"));
string memory svgData = string(abi.encodePacked(
"<svg viewBox='0 0 1e3 1e3' xmlns='http://www.w3.org/2000/svg'><defs><radialGradient id='a' cx='500' cy='",
center.toString(),
"' r='",
size.toString(),
"' gradientUnits='userSpaceOnUse'><stop stop-color='#fff' stop-opacity='.6' offset='.17'/><stop stop-color='#fff' stop-opacity='0' offset='1'/></radialGradient></defs><circle cx='500' cy='",
center.toString(),
"' r='",
size.toString(),
"' fill='#",
color,
"'/><circle id='cg' cx='500' cy='",
center.toString(),
"' r='",
size.toString(),
"' fill='url(#a)' opacity='0'/><style>svg{background:#",
background,
"}#cg{-webkit-animation:1.5s ease-in-out infinite alternate p;animation:1.5s ease-in-out infinite alternate p}@-webkit-keyframes p{to{opacity:1}}@keyframes p{to{opacity:1}}</style></svg>"
));
return string(
abi.encodePacked(
'data:application/json,{"name":"Glitch\'s Army: The Generals mint spot #',
tokenId.toString(),
'","image_data":"',
svgData,
'"}'
)
).uriEncode();
}
function contractURI() external pure returns(string memory) {
return string(abi.encodePacked(
'data:application/json,{"name": "Glitch\'s Army: The Generals mint spot"}'
)).uriEncode();
}
}
合同源代码
文件 9 的 24：IDarkEnergy.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import "./INonFungibleSeaDropToken.sol";
import "./ERC721SeaDropStructsErrorsAndEvents.sol";
/**
* @dev Interface of ERC721A.
*/
interface IDarkEnergy is INonFungibleSeaDropToken, ERC721SeaDropStructsErrorsAndEvents {
/**
* The caller must own the token or be an approved operator.
*/
error CallerNotOwnerNorApproved();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* One cannot send a token holding negative energy to a holder of a token
* holding positive energy
*/
error NegativeEnergyToPositiveHolder();
/**
* The `quantity` minted with ERC2309 exceeds the safety limit.
*/
error QuantityExceedsLimit();
/**
* The token does not exist.
*/
error QueryForNonExistentToken();
/**
* Cannot query the balance for the zero address.
*/
error QueryForZeroAddress();
/**
* The token must be owned by `from`.
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the
* ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Caller needs a gamePass to proceed
*/
error NoGamePass();
/**
* The game rules aren't consistent
*/
error InvalidGameRules();
/**
* To prevent Owner from overriding fees, Administrator must
* first initialize with fee.
*/
error AdministratorMustInitializeWithFee();
/**
* To be thrown in case the max supply was reached and the mint doesn't go
* through SeaDrop
*/
error MaxSupplyExceeded();
/**
* To be thrown in case the max supply was reached and the mint doesn't go
* through SeaDrop
*/
error OperatorNotAllowed();
/**
* To be thrown in case the max supply was reached and the mint doesn't go
* through SeaDrop
*/
error AddressNotHolder();
/**
* To be thrown in case the max supply was reached and the mint doesn't go
* through SeaDrop
*/
error GameNotActive();
// =============================================================
// STRUCTS
// =============================================================
struct TokenOwnership {
// The address of the owner.
address addr;
// Stores the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
// Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
uint24 extraData;
}
// =============================================================
// TOKEN COUNTERS
// =============================================================
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() external view returns (uint256);
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
// =============================================================
// IERC721
// =============================================================
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(
address indexed from,
address indexed to,
uint256 indexed tokenId
);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(
address indexed owner,
address indexed approved,
uint256 indexed tokenId
);
/**
* @dev Emitted when `owner` enables or disables
* (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(
address indexed owner,
address indexed operator,
bool approved
);
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`,
* checking first that contract recipients are aware of the ERC721 protocol
* to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move
* this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom}
* whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @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);
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
// =============================================================
// IERC2309
// =============================================================
/**
* @dev Emitted when tokens in `fromTokenId` to `toTokenId`
* (inclusive) is transferred from `from` to `to`, as defined in the
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
*
* See {_mintERC2309} for more details.
*/
event ConsecutiveTransfer(
uint256 indexed fromTokenId,
uint256 toTokenId,
address indexed from,
address indexed to
);
// =============================================================
// Marketplace Related
// =============================================================
/**
* @dev Signal to marketplaces that the token has been updated
*/
event MetadataUpdate(uint256 _tokenId);
/**
* @dev Allowed a SeaDrop
*/
event AllowedSeaDrop(address indexed seaDrop);
/**
* @dev Denied a SeaDrop
*/
event DeniedSeaDrop(address indexed seaDrop);
// =============================================================
// DarkEnergy-specific
// =============================================================
/**
* @dev GamePass earned through minting
*/
event GamePassesGained(uint256 indexed tokenId, uint16 indexed amount);
/**
* @dev Energy updated
*/
event EnergyUpdate(address indexed player, int40 indexed energyDiff);
/**
* @dev Energy doubled
*/
event EnergyDoubled(address indexed player, int40 indexed energy);
/**
* @dev Energy halved
*/
event EnergyHalved(address indexed player, int40 indexed energy);
/**
* @dev No risk game played
*/
event PlayNoRisk(address indexed player);
/**
* @dev High stakes game played
*/
event PlayHighStakes(address indexed player);
/**
* @dev Ordinal won
*/
event OrdinalWon(address indexed player);
/**
* @dev Game rules updated
*/
event GameRulesUpdated(bytes32 indexed oldRules, bytes32 indexed newRules);
/**
* @dev Game rules updated
*/
event OrdinalsVouchersDeployed(address indexed contractAddress);
/**
* @dev Dark Energy minted
*/
event GlitchMint(address indexed to, uint256 indexed energy, uint256 indexed gamePasses);
/**
* @dev Dark Energy minted
*/
event AdminMint(address indexed to, int40 indexed energyDiff, uint16 indexed gamePassesDiff);
}
合同源代码
文件 10 的 24：IERC165.sol
// 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);
}
合同源代码
文件 11 的 24：IERC2981.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
/**
* @dev Interface for the NFT Royalty Standard.
*
* A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
* support for royalty payments across all NFT marketplaces and ecosystem participants.
*
* _Available since v4.5._
*/
interface IERC2981 is IERC165 {
/**
* @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
* exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
合同源代码
文件 12 的 24：IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* 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);
}
合同源代码
文件 13 的 24：IERC721Metadata.sol
// 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);
}
合同源代码
文件 14 的 24：IERC721Receiver.sol
// 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);
}
合同源代码
文件 15 的 24：INonFungibleSeaDropToken.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import {
ISeaDropTokenContractMetadata
} from "./ISeaDropTokenContractMetadata.sol";
import {
AllowListData,
PublicDrop,
TokenGatedDropStage,
SignedMintValidationParams
} from "../contracts/lib/SeaDropStructs.sol";
interface INonFungibleSeaDropToken is ISeaDropTokenContractMetadata {
/**
* @dev Revert with an error if a contract is not an allowed
* SeaDrop address.
*/
error OnlyAllowedSeaDrop();
/**
* @dev Emit an event when allowed SeaDrop contracts are updated.
*/
event AllowedSeaDropUpdated(address[] allowedSeaDrop);
/**
* @notice An event to signify that a SeaDrop token contract was deployed.
*/
event SeaDropTokenDeployed();
/**
* @notice Update the allowed SeaDrop contracts.
* Only the owner or administrator can use this function.
*
* @param allowedSeaDrop The allowed SeaDrop addresses.
*/
function updateAllowedSeaDrop(address[] calldata allowedSeaDrop) external;
/**
* @notice Mint tokens, restricted to the SeaDrop contract.
*
* @dev NOTE: If a token registers itself with multiple SeaDrop
* contracts, the implementation of this function should guard
* against reentrancy. If the implementing token uses
* _safeMint(), or a feeRecipient with a malicious receive() hook
* is specified, the token or fee recipients may be able to execute
* another mint in the same transaction via a separate SeaDrop
* contract.
* This is dangerous if an implementing token does not correctly
* update the minterNumMinted and currentTotalSupply values before
* transferring minted tokens, as SeaDrop references these values
* to enforce token limits on a per-wallet and per-stage basis.
*
* @param minter The address to mint to.
* @param quantity The number of tokens to mint.
*/
function mintSeaDrop(address minter, uint256 quantity) external;
/**
* @notice Returns a set of mint stats for the address.
* This assists SeaDrop in enforcing maxSupply,
* maxTotalMintableByWallet, and maxTokenSupplyForStage checks.
*
* @dev NOTE: Implementing contracts should always update these numbers
* before transferring any tokens with _safeMint() to mitigate
* consequences of malicious onERC721Received() hooks.
*
* @param minter The minter address.
*/
function getMintStats(address minter)
external
view
returns (
uint256 minterNumMinted,
uint256 currentTotalSupply,
uint256 maxSupply
);
/**
* @notice Update the public drop data for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* The administrator can only update `feeBps`.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param publicDrop The public drop data.
*/
function updatePublicDrop(
address seaDropImpl,
PublicDrop calldata publicDrop
) external;
/**
* @notice Update the allow list data for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowListData The allow list data.
*/
function updateAllowList(
address seaDropImpl,
AllowListData calldata allowListData
) external;
/**
* @notice Update the token gated drop stage data for this nft contract
* on SeaDrop.
* Only the owner or administrator can use this function.
*
* The administrator, when present, must first set `feeBps`.
*
* Note: If two INonFungibleSeaDropToken tokens are doing
* simultaneous token gated drop promotions for each other,
* they can be minted by the same actor until
* `maxTokenSupplyForStage` is reached. Please ensure the
* `allowedNftToken` is not running an active drop during the
* `dropStage` time period.
*
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowedNftToken The allowed nft token.
* @param dropStage The token gated drop stage data.
*/
function updateTokenGatedDrop(
address seaDropImpl,
address allowedNftToken,
TokenGatedDropStage calldata dropStage
) external;
/**
* @notice Update the drop URI for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param dropURI The new drop URI.
*/
function updateDropURI(address seaDropImpl, string calldata dropURI)
external;
/**
* @notice Update the creator payout address for this nft contract on
* SeaDrop.
* Only the owner can set the creator payout address.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payoutAddress The new payout address.
*/
function updateCreatorPayoutAddress(
address seaDropImpl,
address payoutAddress
) external;
/**
* @notice Update the allowed fee recipient for this nft contract
* on SeaDrop.
* Only the administrator can set the allowed fee recipient.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param feeRecipient The new fee recipient.
*/
function updateAllowedFeeRecipient(
address seaDropImpl,
address feeRecipient,
bool allowed
) external;
/**
* @notice Update the server-side signers for this nft contract
* on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param signer The signer to update.
* @param signedMintValidationParams Minimum and maximum parameters
* to enforce for signed mints.
*/
function updateSignedMintValidationParams(
address seaDropImpl,
address signer,
SignedMintValidationParams memory signedMintValidationParams
) external;
/**
* @notice Update the allowed payers for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payer The payer to update.
* @param allowed Whether the payer is allowed.
*/
function updatePayer(
address seaDropImpl,
address payer,
bool allowed
) external;
}
合同源代码
文件 16 的 24：ISeaDrop.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import {
AllowListData,
MintParams,
PublicDrop,
TokenGatedDropStage,
TokenGatedMintParams,
SignedMintValidationParams
} from "../contracts/lib/SeaDropStructs.sol";
import { SeaDropErrorsAndEvents } from "../contracts/lib/SeaDropErrorsAndEvents.sol";
interface ISeaDrop is SeaDropErrorsAndEvents {
/**
* @notice Mint a public drop.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param quantity The number of tokens to mint.
*/
function mintPublic(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
uint256 quantity
) external payable;
/**
* @notice Mint from an allow list.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param quantity The number of tokens to mint.
* @param mintParams The mint parameters.
* @param proof The proof for the leaf of the allow list.
*/
function mintAllowList(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
uint256 quantity,
MintParams calldata mintParams,
bytes32[] calldata proof
) external payable;
/**
* @notice Mint with a server-side signature.
* Note that a signature can only be used once.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param quantity The number of tokens to mint.
* @param mintParams The mint parameters.
* @param salt The sale for the signed mint.
* @param signature The server-side signature, must be an allowed
* signer.
*/
function mintSigned(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
uint256 quantity,
MintParams calldata mintParams,
uint256 salt,
bytes calldata signature
) external payable;
/**
* @notice Mint as an allowed token holder.
* This will mark the token id as redeemed and will revert if the
* same token id is attempted to be redeemed twice.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param mintParams The token gated mint params.
*/
function mintAllowedTokenHolder(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
TokenGatedMintParams calldata mintParams
) external payable;
/**
* @notice Emits an event to notify update of the drop URI.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param dropURI The new drop URI.
*/
function updateDropURI(string calldata dropURI) external;
/**
* @notice Updates the public drop data for the nft contract
* and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param publicDrop The public drop data.
*/
function updatePublicDrop(PublicDrop calldata publicDrop) external;
/**
* @notice Updates the allow list merkle root for the nft contract
* and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param allowListData The allow list data.
*/
function updateAllowList(AllowListData calldata allowListData) external;
/**
* @notice Updates the token gated drop stage for the nft contract
* and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* Note: If two INonFungibleSeaDropToken tokens are doing
* simultaneous token gated drop promotions for each other,
* they can be minted by the same actor until
* `maxTokenSupplyForStage` is reached. Please ensure the
* `allowedNftToken` is not running an active drop during
* the `dropStage` time period.
*
* @param allowedNftToken The token gated nft token.
* @param dropStage The token gated drop stage data.
*/
function updateTokenGatedDrop(
address allowedNftToken,
TokenGatedDropStage calldata dropStage
) external;
/**
* @notice Updates the creator payout address and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param payoutAddress The creator payout address.
*/
function updateCreatorPayoutAddress(address payoutAddress) external;
/**
* @notice Updates the allowed fee recipient and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param feeRecipient The fee recipient.
* @param allowed If the fee recipient is allowed.
*/
function updateAllowedFeeRecipient(address feeRecipient, bool allowed)
external;
/**
* @notice Updates the allowed server-side signers and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param signer The signer to update.
* @param signedMintValidationParams Minimum and maximum parameters
* to enforce for signed mints.
*/
function updateSignedMintValidationParams(
address signer,
SignedMintValidationParams calldata signedMintValidationParams
) external;
/**
* @notice Updates the allowed payer and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param payer The payer to add or remove.
* @param allowed Whether to add or remove the payer.
*/
function updatePayer(address payer, bool allowed) external;
/**
* @notice Returns the public drop data for the nft contract.
*
* @param nftContract The nft contract.
*/
function getPublicDrop(address nftContract)
external
view
returns (PublicDrop memory);
/**
* @notice Returns the creator payout address for the nft contract.
*
* @param nftContract The nft contract.
*/
function getCreatorPayoutAddress(address nftContract)
external
view
returns (address);
/**
* @notice Returns the allow list merkle root for the nft contract.
*
* @param nftContract The nft contract.
*/
function getAllowListMerkleRoot(address nftContract)
external
view
returns (bytes32);
/**
* @notice Returns if the specified fee recipient is allowed
* for the nft contract.
*
* @param nftContract The nft contract.
* @param feeRecipient The fee recipient.
*/
function getFeeRecipientIsAllowed(address nftContract, address feeRecipient)
external
view
returns (bool);
/**
* @notice Returns an enumeration of allowed fee recipients for an
* nft contract when fee recipients are enforced
*
* @param nftContract The nft contract.
*/
function getAllowedFeeRecipients(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns the server-side signers for the nft contract.
*
* @param nftContract The nft contract.
*/
function getSigners(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns the struct of SignedMintValidationParams for a signer.
*
* @param nftContract The nft contract.
* @param signer The signer.
*/
function getSignedMintValidationParams(address nftContract, address signer)
external
view
returns (SignedMintValidationParams memory);
/**
* @notice Returns the payers for the nft contract.
*
* @param nftContract The nft contract.
*/
function getPayers(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns if the specified payer is allowed
* for the nft contract.
*
* @param nftContract The nft contract.
* @param payer The payer.
*/
function getPayerIsAllowed(address nftContract, address payer)
external
view
returns (bool);
/**
* @notice Returns the allowed token gated drop tokens for the nft contract.
*
* @param nftContract The nft contract.
*/
function getTokenGatedAllowedTokens(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns the token gated drop data for the nft contract
* and token gated nft.
*
* @param nftContract The nft contract.
* @param allowedNftToken The token gated nft token.
*/
function getTokenGatedDrop(address nftContract, address allowedNftToken)
external
view
returns (TokenGatedDropStage memory);
/**
* @notice Returns whether the token id for a token gated drop has been
* redeemed.
*
* @param nftContract The nft contract.
* @param allowedNftToken The token gated nft token.
* @param allowedNftTokenId The token gated nft token id to check.
*/
function getAllowedNftTokenIdIsRedeemed(
address nftContract,
address allowedNftToken,
uint256 allowedNftTokenId
) external view returns (bool);
}
合同源代码
文件 17 的 24：ISeaDropTokenContractMetadata.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import { IERC2981 } from "@openzeppelin/contracts/interfaces/IERC2981.sol";
interface ISeaDropTokenContractMetadata is IERC2981 {
/**
* @notice Throw if the max supply exceeds uint64, a limit
* due to the storage of bit-packed variables in ERC721A.
*/
error CannotExceedMaxSupplyOfUint64(uint256 newMaxSupply);
/**
* @dev Revert with an error when attempting to set the provenance
* hash after the mint has started.
*/
error ProvenanceHashCannotBeSetAfterMintStarted();
/**
* @dev Revert if the royalty basis points is greater than 10_000.
*/
error InvalidRoyaltyBasisPoints(uint256 basisPoints);
/**
* @dev Revert if the royalty address is being set to the zero address.
*/
error RoyaltyAddressCannotBeZeroAddress();
/**
* @dev Emit an event for token metadata reveals/updates,
* according to EIP-4906.
*
* @param _fromTokenId The start token id.
* @param _toTokenId The end token id.
*/
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
/**
* @dev Emit an event when the URI for the collection-level metadata
* is updated.
*/
event ContractURIUpdated(string newContractURI);
/**
* @dev Emit an event when the max token supply is updated.
*/
event MaxSupplyUpdated(uint256 newMaxSupply);
/**
* @dev Emit an event with the previous and new provenance hash after
* being updated.
*/
event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);
/**
* @dev Emit an event when the royalties info is updated.
*/
event RoyaltyInfoUpdated(address receiver, uint256 bps);
/**
* @notice A struct defining royalty info for the contract.
*/
struct RoyaltyInfo {
address royaltyAddress;
uint96 royaltyBps;
}
/**
* @notice Sets the base URI for the token metadata and emits an event.
*
* @param tokenURI The new base URI to set.
*/
function setBaseURI(string calldata tokenURI) external;
/**
* @notice Sets the contract URI for contract metadata.
*
* @param newContractURI The new contract URI.
*/
function setContractURI(string calldata newContractURI) external;
/**
* @notice Sets the max supply and emits an event.
*
* @param newMaxSupply The new max supply to set.
*/
function setMaxSupply(uint256 newMaxSupply) external;
/**
* @notice Sets the provenance hash and emits an event.
*
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it has not been
* modified after mint started.
*
* This function will revert after the first item has been minted.
*
* @param newProvenanceHash The new provenance hash to set.
*/
function setProvenanceHash(bytes32 newProvenanceHash) external;
/**
* @notice Sets the address and basis points for royalties.
*
* @param newInfo The struct to configure royalties.
*/
function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external;
/**
* @notice Returns the base URI for token metadata.
*/
function baseURI() external view returns (string memory);
/**
* @notice Returns the contract URI.
*/
function contractURI() external view returns (string memory);
/**
* @notice Returns the max token supply.
*/
function maxSupply() external view returns (uint256);
/**
* @notice Returns the provenance hash.
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it is unmodified
* after mint has started.
*/
function provenanceHash() external view returns (bytes32);
/**
* @notice Returns the address that receives royalties.
*/
function royaltyAddress() external view returns (address);
/**
* @notice Returns the royalty basis points out of 10_000.
*/
function royaltyBasisPoints() external view returns (uint256);
}
合同源代码
文件 18 的 24：Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
合同源代码
文件 19 的 24：OwnableAndAdministrable.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.19;
import "../libraries/DarkEnergyPackedStruct.sol";
contract OwnableAndAdministrable {
using DarkEnergyPackedStruct for bytes32;
error MissingRole(address user, uint256 role);
error NotOwner(address user);
event OwnershipTransferred(address indexed user, address indexed newOwner);
event RoleUpdated(address indexed user, uint256 indexed role, bool indexed status);
/**
* @dev There is a maximum of 256 roles: each bit says if the role is on or off
*/
mapping(address => bytes32) private _addressRoles;
/**
* @dev There is one owner
*/
address internal _owner;
function _isOwner(address sender) internal view returns(bool) {
return (sender == _owner || sender == address(this));
}
function _hasRole(address sender, uint8 role) internal view returns(bool) {
bytes32 roles = _addressRoles[sender];
return roles.getBool(role);
}
function _checkOwner(address sender) internal virtual view {
if (!_isOwner(sender)) {
revert NotOwner(sender);
}
}
function _checkRoleOrOwner(address sender, uint8 role) internal virtual view {
if (_isOwner(sender)) return;
_checkRole(sender, role);
}
function _checkRole(address sender, uint8 role) internal virtual view {
if (sender == address(this)) return;
bytes32 roles = _addressRoles[sender];
bool allowed = roles.getBool(role);
if (!allowed) {
revert MissingRole(sender, role);
}
}
function _setOwner(address newOwner) internal virtual {
_owner = newOwner;
emit OwnershipTransferred(_owner, newOwner);
}
function _setRole(address user, uint8 role, bool status) internal virtual {
_addressRoles[user] = _addressRoles[user].setBit(role, status);
emit RoleUpdated(user, role, status);
}
function setRole(address user, uint8 role, bool status) external virtual {
_checkOwner(msg.sender);
_setRole(user, role, status);
}
function transferOwnership(address newOwner) external virtual {
_checkOwner(msg.sender);
_setOwner(newOwner);
}
function owner() external virtual view returns(address) {
return _owner;
}
}
合同源代码
文件 20 的 24：ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
合同源代码
文件 21 的 24：SeaDropErrorsAndEvents.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import { PublicDrop, TokenGatedDropStage, SignedMintValidationParams } from "./SeaDropStructs.sol";
interface SeaDropErrorsAndEvents {
/**
* @dev Revert with an error if the drop stage is not active.
*/
error NotActive(
uint256 currentTimestamp,
uint256 startTimestamp,
uint256 endTimestamp
);
/**
* @dev Revert with an error if the mint quantity is zero.
*/
error MintQuantityCannotBeZero();
/**
* @dev Revert with an error if the mint quantity exceeds the max allowed
* to be minted per wallet.
*/
error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply.
*/
error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply for the stage.
* Note: The `maxTokenSupplyForStage` for public mint is
* always `type(uint).max`.
*/
error MintQuantityExceedsMaxTokenSupplyForStage(
uint256 total,
uint256 maxTokenSupplyForStage
);
/**
* @dev Revert if the fee recipient is the zero address.
*/
error FeeRecipientCannotBeZeroAddress();
/**
* @dev Revert if the fee recipient is not already included.
*/
error FeeRecipientNotPresent();
/**
* @dev Revert if the fee basis points is greater than 10_000.
*/
error InvalidFeeBps(uint256 feeBps);
/**
* @dev Revert if the fee recipient is already included.
*/
error DuplicateFeeRecipient();
/**
* @dev Revert if the fee recipient is restricted and not allowed.
*/
error FeeRecipientNotAllowed();
/**
* @dev Revert if the creator payout address is the zero address.
*/
error CreatorPayoutAddressCannotBeZeroAddress();
/**
* @dev Revert with an error if the received payment is incorrect.
*/
error IncorrectPayment(uint256 got, uint256 want);
/**
* @dev Revert with an error if the allow list proof is invalid.
*/
error InvalidProof();
/**
* @dev Revert if a supplied signer address is the zero address.
*/
error SignerCannotBeZeroAddress();
/**
* @dev Revert with an error if signer's signature is invalid.
*/
error InvalidSignature(address recoveredSigner);
/**
* @dev Revert with an error if a signer is not included in
* the enumeration when removing.
*/
error SignerNotPresent();
/**
* @dev Revert with an error if a payer is not included in
* the enumeration when removing.
*/
error PayerNotPresent();
/**
* @dev Revert with an error if a payer is already included in mapping
* when adding.
* Note: only applies when adding a single payer, as duplicates in
* enumeration can be removed with updatePayer.
*/
error DuplicatePayer();
/**
* @dev Revert with an error if the payer is not allowed. The minter must
* pay for their own mint.
*/
error PayerNotAllowed();
/**
* @dev Revert if a supplied payer address is the zero address.
*/
error PayerCannotBeZeroAddress();
/**
* @dev Revert with an error if the sender does not
* match the INonFungibleSeaDropToken interface.
*/
error OnlyINonFungibleSeaDropToken(address sender);
/**
* @dev Revert with an error if the sender of a token gated supplied
* drop stage redeem is not the owner of the token.
*/
error TokenGatedNotTokenOwner(
address nftContract,
address allowedNftToken,
uint256 allowedNftTokenId
);
/**
* @dev Revert with an error if the token id has already been used to
* redeem a token gated drop stage.
*/
error TokenGatedTokenIdAlreadyRedeemed(
address nftContract,
address allowedNftToken,
uint256 allowedNftTokenId
);
/**
* @dev Revert with an error if an empty TokenGatedDropStage is provided
* for an already-empty TokenGatedDropStage.
*/
error TokenGatedDropStageNotPresent();
/**
* @dev Revert with an error if an allowedNftToken is set to
* the zero address.
*/
error TokenGatedDropAllowedNftTokenCannotBeZeroAddress();
/**
* @dev Revert with an error if an allowedNftToken is set to
* the drop token itself.
*/
error TokenGatedDropAllowedNftTokenCannotBeDropToken();
/**
* @dev Revert with an error if supplied signed mint price is less than
* the minimum specified.
*/
error InvalidSignedMintPrice(uint256 got, uint256 minimum);
/**
* @dev Revert with an error if supplied signed maxTotalMintableByWallet
* is greater than the maximum specified.
*/
error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed start time is less than
* the minimum specified.
*/
error InvalidSignedStartTime(uint256 got, uint256 minimum);
/**
* @dev Revert with an error if supplied signed end time is greater than
* the maximum specified.
*/
error InvalidSignedEndTime(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed maxTokenSupplyForStage
* is greater than the maximum specified.
*/
error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed feeBps is greater than
* the maximum specified, or less than the minimum.
*/
error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);
/**
* @dev Revert with an error if signed mint did not specify to restrict
* fee recipients.
*/
error SignedMintsMustRestrictFeeRecipients();
/**
* @dev Revert with an error if a signature for a signed mint has already
* been used.
*/
error SignatureAlreadyUsed();
/**
* @dev An event with details of a SeaDrop mint, for analytical purposes.
*
* @param nftContract The nft contract.
* @param minter The mint recipient.
* @param feeRecipient The fee recipient.
* @param payer The address who payed for the tx.
* @param quantityMinted The number of tokens minted.
* @param unitMintPrice The amount paid for each token.
* @param feeBps The fee out of 10_000 basis points collected.
* @param dropStageIndex The drop stage index. Items minted
* through mintPublic() have
* dropStageIndex of 0.
*/
event SeaDropMint(
address indexed nftContract,
address indexed minter,
address indexed feeRecipient,
address payer,
uint256 quantityMinted,
uint256 unitMintPrice,
uint256 feeBps,
uint256 dropStageIndex
);
/**
* @dev An event with updated public drop data for an nft contract.
*/
event PublicDropUpdated(
address indexed nftContract,
PublicDrop publicDrop
);
/**
* @dev An event with updated token gated drop stage data
* for an nft contract.
*/
event TokenGatedDropStageUpdated(
address indexed nftContract,
address indexed allowedNftToken,
TokenGatedDropStage dropStage
);
/**
* @dev An event with updated allow list data for an nft contract.
*
* @param nftContract The nft contract.
* @param previousMerkleRoot The previous allow list merkle root.
* @param newMerkleRoot The new allow list merkle root.
* @param publicKeyURI If the allow list is encrypted, the public key
* URIs that can decrypt the list.
* Empty if unencrypted.
* @param allowListURI The URI for the allow list.
*/
event AllowListUpdated(
address indexed nftContract,
bytes32 indexed previousMerkleRoot,
bytes32 indexed newMerkleRoot,
string[] publicKeyURI,
string allowListURI
);
/**
* @dev An event with updated drop URI for an nft contract.
*/
event DropURIUpdated(address indexed nftContract, string newDropURI);
/**
* @dev An event with the updated creator payout address for an nft
* contract.
*/
event CreatorPayoutAddressUpdated(
address indexed nftContract,
address indexed newPayoutAddress
);
/**
* @dev An event with the updated allowed fee recipient for an nft
* contract.
*/
event AllowedFeeRecipientUpdated(
address indexed nftContract,
address indexed feeRecipient,
bool indexed allowed
);
/**
* @dev An event with the updated validation parameters for server-side
* signers.
*/
event SignedMintValidationParamsUpdated(
address indexed nftContract,
address indexed signer,
SignedMintValidationParams signedMintValidationParams
);
/**
* @dev An event with the updated payer for an nft contract.
*/
event PayerUpdated(
address indexed nftContract,
address indexed payer,
bool indexed allowed
);
}
合同源代码
文件 22 的 24：SeaDropStructs.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
/**
* @notice A struct defining public drop data.
* Designed to fit efficiently in one storage slot.
*
* @param mintPrice The mint price per token. (Up to 1.2m
* of native token, e.g. ETH, MATIC)
* @param startTime The start time, ensure this is not zero.
* @param endTIme The end time, ensure this is not zero.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed. (The limit for this field is
* 2^16 - 1)
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct PublicDrop {
uint80 mintPrice; // 80/256 bits
uint48 startTime; // 128/256 bits
uint48 endTime; // 176/256 bits
uint16 maxTotalMintableByWallet; // 224/256 bits
uint16 feeBps; // 240/256 bits
bool restrictFeeRecipients; // 248/256 bits
}
/**
* @notice A struct defining token gated drop stage data.
* Designed to fit efficiently in one storage slot.
*
* @param mintPrice The mint price per token. (Up to 1.2m
* of native token, e.g.: ETH, MATIC)
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed. (The limit for this field is
* 2^16 - 1)
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param dropStageIndex The drop stage index to emit with the event
* for analytical purposes. This should be
* non-zero since the public mint emits
* with index zero.
* @param maxTokenSupplyForStage The limit of token supply this stage can
* mint within. (The limit for this field is
* 2^16 - 1)
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct TokenGatedDropStage {
uint80 mintPrice; // 80/256 bits
uint16 maxTotalMintableByWallet; // 96/256 bits
uint48 startTime; // 144/256 bits
uint48 endTime; // 192/256 bits
uint8 dropStageIndex; // non-zero. 200/256 bits
uint32 maxTokenSupplyForStage; // 232/256 bits
uint16 feeBps; // 248/256 bits
bool restrictFeeRecipients; // 256/256 bits
}
/**
* @notice A struct defining mint params for an allow list.
* An allow list leaf will be composed of `msg.sender` and
* the following params.
*
* Note: Since feeBps is encoded in the leaf, backend should ensure
* that feeBps is acceptable before generating a proof.
*
* @param mintPrice The mint price per token.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed.
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param dropStageIndex The drop stage index to emit with the event
* for analytical purposes. This should be
* non-zero since the public mint emits with
* index zero.
* @param maxTokenSupplyForStage The limit of token supply this stage can
* mint within.
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct MintParams {
uint256 mintPrice;
uint256 maxTotalMintableByWallet;
uint256 startTime;
uint256 endTime;
uint256 dropStageIndex; // non-zero
uint256 maxTokenSupplyForStage;
uint256 feeBps;
bool restrictFeeRecipients;
}
/**
* @notice A struct defining token gated mint params.
*
* @param allowedNftToken The allowed nft token contract address.
* @param allowedNftTokenIds The token ids to redeem.
*/
struct TokenGatedMintParams {
address allowedNftToken;
uint256[] allowedNftTokenIds;
}
/**
* @notice A struct defining allow list data (for minting an allow list).
*
* @param merkleRoot The merkle root for the allow list.
* @param publicKeyURIs If the allowListURI is encrypted, a list of URIs
* pointing to the public keys. Empty if unencrypted.
* @param allowListURI The URI for the allow list.
*/
struct AllowListData {
bytes32 merkleRoot;
string[] publicKeyURIs;
string allowListURI;
}
/**
* @notice A struct defining minimum and maximum parameters to validate for
* signed mints, to minimize negative effects of a compromised signer.
*
* @param minMintPrice The minimum mint price allowed.
* @param maxMaxTotalMintableByWallet The maximum total number of mints allowed
* by a wallet.
* @param minStartTime The minimum start time allowed.
* @param maxEndTime The maximum end time allowed.
* @param maxMaxTokenSupplyForStage The maximum token supply allowed.
* @param minFeeBps The minimum fee allowed.
* @param maxFeeBps The maximum fee allowed.
*/
struct SignedMintValidationParams {
uint80 minMintPrice; // 80/256 bits
uint24 maxMaxTotalMintableByWallet; // 104/256 bits
uint40 minStartTime; // 144/256 bits
uint40 maxEndTime; // 184/256 bits
uint40 maxMaxTokenSupplyForStage; // 224/256 bits
uint16 minFeeBps; // 240/256 bits
uint16 maxFeeBps; // 256/256 bits
}
合同源代码
文件 23 的 24：Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)
// Added support for int256
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/math/Math.sol";
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toString(int256 value) internal pure returns (string memory) {
if (value >= 0) {
return toString(uint256(value));
}
return
string(
abi.encodePacked(
"-",
toString(uint256(-value))
)
);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(
uint256 value,
uint256 length
) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
合同源代码
文件 24 的 24：UriEncode.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
library UriEncode {
string internal constant _TABLE = "0123456789abcdef";
function uriEncode(
string memory uri
) internal pure returns (string memory) {
bytes memory bytesUri = bytes(uri);
string memory table = _TABLE;
// Max size is worse case all chars need to be encoded
bytes memory result = new bytes(3 * bytesUri.length);
/// @solidity memory-safe-assembly
assembly {
// Get the lookup table
let tablePtr := add(table, 1)
// Prepare result pointer, jump over length
let resultPtr := add(result, 32)
// Keep track of the final result size string length
let resultSize := 0
for {
let dataPtr := bytesUri
let endPtr := add(bytesUri, mload(bytesUri))
} lt(dataPtr, endPtr) {
} {
// advance 1 byte
dataPtr := add(dataPtr, 1)
// bytemask out a char
let char := and(mload(dataPtr), 255)
// Check if is valid URI character
let isInvalidUriChar := or(
or(
lt(char, 33), // lower than "!"
gt(char, 122) // higher than "z"
),
or(
or(
eq(char, 37), // "%"
or(
eq(char, 60), // "<"
eq(char, 62) // ">"
)
),
or(
and(gt(char, 90), lt(char, 95)), // "[\]^"
eq(char, 96) // "`"
)
)
)
if eq(char, 35) { isInvalidUriChar := 1 }
switch isInvalidUriChar
// If is valid uri character copy character over and increment the result
case 0 {
mstore8(resultPtr, char)
resultPtr := add(resultPtr, 1)
resultSize := add(resultSize, 1)
}
// If the char is not a valid uri character, uriencode the character
case 1 {
mstore8(resultPtr, 37)
resultPtr := add(resultPtr, 1)
// table[character >> 4] (take the last 4 bits)
mstore8(resultPtr, mload(add(tablePtr, shr(4, char))))
resultPtr := add(resultPtr, 1)
// table & 15 (take the first 4 bits)
mstore8(resultPtr, mload(add(tablePtr, and(char, 15))))
resultPtr := add(resultPtr, 1)
resultSize := add(resultSize, 3)
}
}
// Set size of result string in memory
mstore(result, resultSize)
}
return string(result);
}
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