// File: contracts/AnonymiceLibrary.sol
pragma solidity ^0.8.0;
library AnonymiceLibrary {
string internal constant TABLE =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
function encode(bytes memory data) internal pure returns (string memory) {
if (data.length == 0) return "";
// load the table into memory
string memory table = TABLE;
// multiply by 4/3 rounded up
uint256 encodedLen = 4 * ((data.length + 2) / 3);
// add some extra buffer at the end required for the writing
string memory result = new string(encodedLen + 32);
assembly {
// set the actual output length
mstore(result, encodedLen)
// prepare the lookup table
let tablePtr := add(table, 1)
// input ptr
let dataPtr := data
let endPtr := add(dataPtr, mload(data))
// result ptr, jump over length
let resultPtr := add(result, 32)
// run over the input, 3 bytes at a time
for {
} lt(dataPtr, endPtr) {
} {
dataPtr := add(dataPtr, 3)
// read 3 bytes
let input := mload(dataPtr)
// write 4 characters
mstore(
resultPtr,
shl(248, mload(add(tablePtr, and(shr(18, input), 0x3F))))
)
resultPtr := add(resultPtr, 1)
mstore(
resultPtr,
shl(248, mload(add(tablePtr, and(shr(12, input), 0x3F))))
)
resultPtr := add(resultPtr, 1)
mstore(
resultPtr,
shl(248, mload(add(tablePtr, and(shr(6, input), 0x3F))))
)
resultPtr := add(resultPtr, 1)
mstore(
resultPtr,
shl(248, mload(add(tablePtr, and(input, 0x3F))))
)
resultPtr := add(resultPtr, 1)
}
// padding with '='
switch mod(mload(data), 3)
case 1 {
mstore(sub(resultPtr, 2), shl(240, 0x3d3d))
}
case 2 {
mstore(sub(resultPtr, 1), shl(248, 0x3d))
}
}
return result;
}
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
function parseInt(string memory _a)
internal
pure
returns (uint8 _parsedInt)
{
bytes memory bresult = bytes(_a);
uint8 mint = 0;
for (uint8 i = 0; i < bresult.length; i++) {
if (
(uint8(uint8(bresult[i])) >= 48) &&
(uint8(uint8(bresult[i])) <= 57)
) {
mint *= 10;
mint += uint8(bresult[i]) - 48;
}
}
return mint;
}
function substring(
string memory str,
uint256 startIndex,
uint256 endIndex
) internal pure returns (string memory) {
bytes memory strBytes = bytes(str);
bytes memory result = new bytes(endIndex - startIndex);
for (uint256 i = startIndex; i < endIndex; i++) {
result[i - startIndex] = strBytes[i];
}
return string(result);
}
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts/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;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
pragma solidity ^0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_setOwner(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: @openzeppelin/contracts/utils/Address.sol
pragma solidity ^0.8.0;
/**
* @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
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts/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);
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
pragma solidity ^0.8.0;
/**
* @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;
}
}
// File: @openzeppelin/contracts/token/ERC721/IERC721.sol
pragma solidity ^0.8.0;
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol
pragma solidity ^0.8.0;
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Enumerable is IERC721 {
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);
/**
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
* Use along with {totalSupply} to enumerate all tokens.
*/
function tokenByIndex(uint256 index) external view returns (uint256);
}
// File: contracts/interfaces/IAxons.sol
/// @title Interface for Axons
pragma solidity ^0.8.6;
interface IAxons is IERC721Enumerable {
event AxonCreated(uint256 indexed tokenId);
event AxonBurned(uint256 indexed tokenId);
event MinterUpdated(address minter);
event MinterLocked();
function mint(uint256 axonId) external returns (uint256);
function burn(uint256 tokenId) external;
function dataURI(uint256 tokenId) external returns (string memory);
function setMinter(address minter) external;
function lockMinter() external;
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol
pragma solidity ^0.8.0;
/**
* @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);
}
// File: @openzeppelin/contracts/token/ERC721/ERC721.sol
pragma solidity ^0.8.0;
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
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) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public 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 owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
require(operator != _msgSender(), "ERC721: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
/**
* @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 of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @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 {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
// File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol
pragma solidity ^0.8.0;
/**
* @dev This implements an optional extension of {ERC721} defined in the EIP that adds
* enumerability of all the token ids in the contract as well as all token ids owned by each
* account.
*/
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
// Mapping from owner to list of owned token IDs
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
// Mapping from token ID to index of the owner tokens list
mapping(uint256 => uint256) private _ownedTokensIndex;
// Array with all token ids, used for enumeration
uint256[] private _allTokens;
// Mapping from token id to position in the allTokens array
mapping(uint256 => uint256) private _allTokensIndex;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
return _ownedTokens[owner][index];
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _allTokens.length;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
return _allTokens[index];
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override {
super._beforeTokenTransfer(from, to, tokenId);
if (from == address(0)) {
_addTokenToAllTokensEnumeration(tokenId);
} else if (from != to) {
_removeTokenFromOwnerEnumeration(from, tokenId);
}
if (to == address(0)) {
_removeTokenFromAllTokensEnumeration(tokenId);
} else if (to != from) {
_addTokenToOwnerEnumeration(to, tokenId);
}
}
/**
* @dev Private function to add a token to this extension's ownership-tracking data structures.
* @param to address representing the new owner of the given token ID
* @param tokenId uint256 ID of the token to be added to the tokens list of the given address
*/
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
uint256 length = ERC721.balanceOf(to);
_ownedTokens[to][length] = tokenId;
_ownedTokensIndex[tokenId] = length;
}
/**
* @dev Private function to add a token to this extension's token tracking data structures.
* @param tokenId uint256 ID of the token to be added to the tokens list
*/
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
_allTokensIndex[tokenId] = _allTokens.length;
_allTokens.push(tokenId);
}
/**
* @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
* while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
* gas optimizations e.g. when performing a transfer operation (avoiding double writes).
* This has O(1) time complexity, but alters the order of the _ownedTokens array.
* @param from address representing the previous owner of the given token ID
* @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
*/
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
// To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
// then delete the last slot (swap and pop).
uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
uint256 tokenIndex = _ownedTokensIndex[tokenId];
// When the token to delete is the last token, the swap operation is unnecessary
if (tokenIndex != lastTokenIndex) {
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
}
// This also deletes the contents at the last position of the array
delete _ownedTokensIndex[tokenId];
delete _ownedTokens[from][lastTokenIndex];
}
/**
* @dev Private function to remove a token from this extension's token tracking data structures.
* This has O(1) time complexity, but alters the order of the _allTokens array.
* @param tokenId uint256 ID of the token to be removed from the tokens list
*/
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
// To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
// then delete the last slot (swap and pop).
uint256 lastTokenIndex = _allTokens.length - 1;
uint256 tokenIndex = _allTokensIndex[tokenId];
// When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
// rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
// an 'if' statement (like in _removeTokenFromOwnerEnumeration)
uint256 lastTokenId = _allTokens[lastTokenIndex];
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
// This also deletes the contents at the last position of the array
delete _allTokensIndex[tokenId];
_allTokens.pop();
}
}
// File: contracts/Axons.sol
// contracts/Axons.sol
pragma solidity ^0.8.0;
contract Axons is IAxons, ERC721Enumerable, Ownable {
/*
_ _ _ _ _
/ \ / \ / \ / \ / \
( A | X | O | N | S |
\_/ \_/ \_/ \_/ \_/
credit to mouse dev and 0xinuarashi for making amazing on chain project with Anonymice
that was used as the basis for Filaments and this contract
*/
using AnonymiceLibrary for uint8;
// An address who has permissions to mint Axons
address public minter;
// Whether the minter can be updated
bool public isMinterLocked;
// IPFS content hash of contract-level metadata
string private _contractURIHash = '';
//Mappings
mapping(uint256 => bool) internal axonNumberToMinted;
mapping(uint256 => uint256) internal tokenIdToNumber;
//p5js url
string p5jsUrl = 'https%3A%2F%2Fcdnjs.cloudflare.com%2Fajax%2Flibs%2Fp5.js%2F1.4.0%2Fp5.js';
string p5jsIntegrity = 'sha256-maU2GxaUCz5WChkAGR40nt9sbWRPEfF8qo%2FprxhoKPQ%3D';
string imageUrl = 'https://axons.art/api/axons/image/';
string animationUrl = 'ipfs://QmepMLoRLNUX2ratx24a12oQFuRhLsgMhM6ni3HfMzK3Fu?x=';
/**
* @notice Require that the minter has not been locked.
*/
modifier whenMinterNotLocked() {
require(!isMinterLocked, 'Minter is locked');
_;
}
constructor() ERC721("Axons", "AXONS") {
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Generates a random axon number
* @param _a The address to be used within the hash.
*/
function randomAxonNumber(
address _a,
uint256 _c
) internal returns (uint256) {
uint256 _rand = uint256(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_a,
_c
)
)
) % 900719925474000
);
if (axonNumberToMinted[_rand]) return randomAxonNumber(_a, _c + 1);
return _rand;
}
/**
* @notice Require that the sender is the minter.
*/
modifier onlyMinter() {
require(msg.sender == minter, 'Sender is not the minter');
_;
}
/**
* @dev Mints new tokens.
*/
function mint(uint256 axonId) public override onlyMinter returns (uint256) {
if (totalSupply() <= 1830 && totalSupply() % 30 == 0 && totalSupply() > 0) {
_mintTo(owner(), randomAxonNumber(msg.sender, 1000)); // Mint every 30th Axon to creator
}
return _mintTo(msg.sender, axonId);
}
function _mintTo(address to, uint256 axonId) internal returns (uint256) {
uint256 thisTokenId = totalSupply();
tokenIdToNumber[thisTokenId] = axonId;
axonNumberToMinted[tokenIdToNumber[thisTokenId]] = true;
_mint(to, thisTokenId);
return thisTokenId;
}
/**
* @notice Burn an axon.
*/
function burn(uint256 axonId) public override onlyMinter {
_burn(axonId);
emit AxonBurned(axonId);
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @notice The IPFS URI of contract-level metadata.
*/
function contractURI() public view returns (string memory) {
return string(abi.encodePacked('ipfs://', _contractURIHash));
}
/**
* @dev Number to HTML function
*/
function dataURI(uint256 _tokenId)
public override
view
returns (string memory)
{
require(_exists(_tokenId));
uint256 axonNumber = tokenIdToNumber[_tokenId];
string memory htmlString = string(
abi.encodePacked(
'data:text/html,%3Chtml%3E%3Chead%3E%3Cscript%20src%3D%22',
p5jsUrl,
'%22%20integrity%3D%22',
p5jsIntegrity,
'%22%20crossorigin%3D%22anonymous%22%3E%3C%2Fscript%3E%3Cstyle%3Ehtml%7Bheight%3A100%25%3Boverflow%3Ahidden%7Dbody%7Bmin-height%3A100%25%3Bmargin%3A0%3Bpadding%3A0%3Boverflow%3Ahidden%3Bbackground-color%3A%23111%7Dcanvas%7Bpadding%3A0%3Bmargin%3Aauto%3Bdisplay%3Ablock%3Bposition%3Aabsolute%3Btop%3A0%3Bbottom%3A0%3Bleft%3A0%3Bright%3A0%3Bimage-rendering%3Apixelated%7D%3C%2Fstyle%3E%3Cmeta%20charset%3D%22utf-8%22%3E%3C%2Fhead%3E%3Cbody%3E%3Cscript%3Evar%20gs%3DparseInt%28',
AnonymiceLibrary.toString(axonNumber),
'%29%3Bclass%20Mx%7Bconstructor%28t%2Cr%29%7Bthis.rZ%3Dt%2Cthis.cols%3Dr%2Cthis.data%3DArray%28this.rZ%29.fill%28%29.map%28%28%28%29%3D%3EArray%28this.cols%29.fill%280%29%29%29%7Dcopy%28%29%7Blet%20t%3Dnew%20Mx%28this.rZ%2Cthis.cols%29%3Bfor%28let%20r%3D0%3Br%3Cthis.rZ%3Br%2B%2B%29for%28let%20s%3D0%3Bs%3Cthis.cols%3Bs%2B%2B%29t.data%5Br%5D%5Bs%5D%3Dthis.data%5Br%5D%5Bs%5D%3Breturn%20t%7Dstatic%20fromArray%28t%29%7Breturn%20new%20Mx%28t.length%2C1%29.map%28%28%28r%2Cs%29%3D%3Et%5Bs%5D%29%29%7Dstatic%20subtract%28t%2Cr%29%7Bif%28t.rZ%3D%3D%3Dr.rZ%26%26t.cols%3D%3D%3Dr.cols%29return%20new%20Mx%28t.rZ%2Ct.cols%29.map%28%28%28s%2Ca%2Ci%29%3D%3Et.data%5Ba%5D%5Bi%5D-r.data%5Ba%5D%5Bi%5D%29%29%7DtoArray%28%29%7Blet%20t%3D%5B%5D%3Bfor%28let%20r%3D0%3Br%3Cthis.rZ%3Br%2B%2B%29for%28let%20s%3D0%3Bs%3Cthis.cols%3Bs%2B%2B%29t.push%28this.data%5Br%5D%5Bs%5D%29%3Breturn%20t%7Drdz%28%29%7Breturn%20this.map%28%28t%3D%3E2%2Arng%28%29-1%29%29%7Dadd%28t%29%7Bif%28t%20instanceof%20Mx%29%7Bif%28this.rZ%21%3D%3Dt.rZ%7C%7Cthis.cols%21%3D%3Dt.cols%29return%3Breturn%20this.map%28%28%28r%2Cs%2Ca%29%3D%3Er%2Bt.data%5Bs%5D%5Ba%5D%29%29%7Dreturn%20this.map%28%28r%3D%3Er%2Bt%29%29%7Dstatic%20trp%28t%29%7Breturn%20new%20Mx%28t.cols%2Ct.rZ%29.map%28%28%28r%2Cs%2Ca%29%3D%3Et.data%5Ba%5D%5Bs%5D%29%29%7Dstatic%20mtp%28t%2Cr%29%7Bif%28t.cols%3D%3D%3Dr.rZ%29return%20new%20Mx%28t.rZ%2Cr.cols%29.map%28%28%28s%2Ca%2Ci%29%3D%3E%7Blet%20o%3D0%3Bfor%28let%20s%3D0%3Bs%3Ct.cols%3Bs%2B%2B%29o%2B%3Dt.data%5Ba%5D%5Bs%5D%2Ar.data%5Bs%5D%5Bi%5D%3Breturn%20o%7D%29%29%7Dmtp%28t%29%7Bif%28t%20instanceof%20Mx%29%7Bif%28this.rZ%21%3D%3Dt.rZ%7C%7Cthis.cols%21%3D%3Dt.cols%29return%3Breturn%20this.map%28%28%28r%2Cs%2Ca%29%3D%3Er%2At.data%5Bs%5D%5Ba%5D%29%29%7Dreturn%20this.map%28%28r%3D%3Er%2At%29%29%7Dmap%28t%29%7Bfor%28let%20r%3D0%3Br%3Cthis.rZ%3Br%2B%2B%29for%28let%20s%3D0%3Bs%3Cthis.cols%3Bs%2B%2B%29%7Blet%20a%3Dthis.data%5Br%5D%5Bs%5D%3Bthis.data%5Br%5D%5Bs%5D%3Dt%28a%2Cr%2Cs%29%7Dreturn%20this%7Dstatic%20map%28t%2Cr%29%7Breturn%20new%20Mx%28t.rZ%2Ct.cols%29.map%28%28%28s%2Ca%2Ci%29%3D%3Er%28t.data%5Ba%5D%5Bi%5D%2Ca%2Ci%29%29%29%7Dserialize%28%29%7Breturn%20JSON.stringify%28this%29%7Dstatic%20dsr%28t%29%7B%22string%22%3D%3Dtypeof%20t%26%26%28t%3DJSON.parse%28t%29%29%3Blet%20r%3Dnew%20Mx%28t.rZ%2Ct.cols%29%3Breturn%20r.data%3Dt.data%2Cr%7D%7D%22undefined%22%21%3Dtypeof%20module%26%26%28module.exports%3DMx%29%3C%2Fscript%3E%3Cscript%3Eclass%20AAF%7Bconstructor%28i%2Ct%29%7Bthis.func%3Di%2Cthis.dfunc%3Dt%7D%7Dlet%20sigmoid%3Dnew%20AAF%28%28i%3D%3E1%2F%281%2BMath.exp%28-i%29%29%29%2C%28i%3D%3Ei%2A%281-i%29%29%29%3Bclass%20NNN%7Bconstructor%28i%2Ct%2Cs%29%7B%28this.seed%3Dgs%2Crng%3Dsrand%28this.seed%29%2Cthis.i_n%3Di%2Cthis.h_n%3Dt%2Cthis.o_n%3Ds%2Cthis.w_hi%3Dnew%20Mx%28this.h_n%2Cthis.i_n%29%2Cthis.w_ho%3Dnew%20Mx%28this.o_n%2Cthis.h_n%29%2Cthis.w_hi.rdz%28%29%2Cthis.w_ho.rdz%28%29%2Cthis.bias_h%3Dnew%20Mx%28this.h_n%2C1%29%2Cthis.bias_o%3Dnew%20Mx%28this.o_n%2C1%29%2Cthis.bias_h.rdz%28%29%2Cthis.bias_o.rdz%28%29%29%2Cthis.setLearningRate%28%29%2Cthis.setAAF%28%29%7Dpredict%28i%29%7Blet%20t%3DMx.fromArray%28i%29%2Cs%3DMx.mtp%28this.w_hi%2Ct%29%3Bs.add%28this.bias_h%29%2Cs.map%28this.a_f.func%29%3Blet%20e%3DMx.mtp%28this.w_ho%2Cs%29%3Breturn%20e.add%28this.bias_o%29%2Ce.map%28this.a_f.func%29%2Ce.toArray%28%29%7DsetLearningRate%28i%3D.1%29%7Bthis.l_r%3Di%7DsetAAF%28i%3Dsigmoid%29%7Bthis.a_f%3Di%7Dserialize%28%29%7Breturn%20JSON.stringify%28this%29%7Dstatic%20dsr%28i%29%7B%22string%22%3D%3Dtypeof%20i%26%26%28i%3DJSON.parse%28i%29%29%3Blet%20t%3Dnew%20NNN%28i.i_n%2Ci.h_n%2Ci.o_n%29%3Breturn%20t.w_hi%3DMx.dsr%28i.w_hi%29%2Ct.w_ho%3DMx.dsr%28i.w_ho%29%2Ct.bias_h%3DMx.dsr%28i.bias_h%29%2Ct.bias_o%3DMx.dsr%28i.bias_o%29%2Ct.l_r%3Di.l_r%2Ct%7Dcopy%28%29%7Breturn%20new%20NNN%28this%29%7DmtT%28i%29%7Bfunction%20t%28t%29%7Breturn%20rng%28%29%3Ci%3Ft%2BrandomGaussian%280%2C.1%29%3At%7Dthis.w_hi.map%28t%29%2Cthis.w_ho.map%28t%29%2Cthis.bias_h.map%28t%29%2Cthis.bias_o.map%28t%29%7D%7D%3C%2Fscript%3E%3Cscript%3Eclass%20Art%7Bconstructor%28t%29%7Bthis.score%3D0%2Cthis.fitness%3D0%2Cthis.frame%3D0%2Cthis.rate%3D1%2Cthis.brain%3Dt%3Ft.copy%28%29%3Anew%20NNN%281%2C8%2C38%29%7DcvC%28t%2Cr%2Ce%29%7Breturn%5BMath.round%28255%2At%5B0%5D%2B.35%2Ar%2Athis.ouT%5B35%5D%29%2CMath.round%28255%2At%5B1%5D%2B.35%2Ar%2Athis.ouT%5B36%5D%29%2CMath.round%28255%2At%5B2%5D%29%2B.35%2Ar%2Athis.ouT%5B37%5D%5D%7DgCN%28t%2Cr%2Ce%29%7Bt%25%3D35%2Ct%3DMath.round%28%28Math.sin%28t%29%2B1%29%2F2%2A55%29-1%2Cthis.brain.seed%253%3D%3D0%3Ft%3D-1%2AMath.abs%28t%29%3Athis.brain.seed%253%3D%3D1%26%26%28t%3DMath.abs%28t%29%29%3Breturn%20this.ouT%5B6%2B3%2At%5D%3F%5Bthis.ouT%5B6%2B3%2At%5D%2Cthis.ouT%5B6%2B4%2At%5D%2Cthis.ouT%5B6%2B5%2At%5D%5D%3A%5B-1%2C-1%2C-1%5D%7Dshow%28t%2Cr%2Ce%29%7BpF%7C%7C%28pF%3Dcolor%280%29%2Cfill%28pF%29%29%3Bvar%20i%2Cn%3D0%2BMath.round%285%2Athis.ouT%5B0%5D%29%2Ca%3DMath.max%28this.ouT%5B1%5D%2B3e-7%2At%2C.01%29%2At%2F12%2Cs%3DMath.max%28this.ouT%5B2%5D%2B3e-7%2Ar%2C.01%29%2Ar%2F12%2Co%3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)
);
return htmlString;
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory description = '", "description": "Axons is an infinite collection of generative pixel art, looking into the mind of a neural network (thus, no distinct traits can be distilled). A new Axon is chosen and auctioned on-chain daily based on decentralized community voting. Art is mirrored permanently on-chain. Auctions are conducted using a free, untradeable token obtained by participating in the voting process.';
uint256 axonNumber = tokenIdToNumber[_tokenId];
string memory encodedAxonNumber = AnonymiceLibrary.encode(bytes(string(abi.encodePacked(AnonymiceLibrary.toString(axonNumber)))));
return
string(
abi.encodePacked(
"data:application/json;base64,",
AnonymiceLibrary.encode(
bytes(
string(
abi.encodePacked(
'{"name": "Axons #',
AnonymiceLibrary.toString(_tokenId),
description,
'","image":"',
imageUrl,
encodedAxonNumber,
'","animation_url":"',
animationUrl,
encodedAxonNumber,
'"}'
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToAxonNumber(uint256 _tokenId)
public
view
returns (uint256)
{
uint256 axonNumber = tokenIdToNumber[_tokenId];
return axonNumber;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Sets the p5js url
* @param _p5jsUrl The address of the p5js file hosted on CDN
*/
function setJsAddress(string memory _p5jsUrl) public onlyOwner {
p5jsUrl = _p5jsUrl;
}
/**
* @dev Sets the p5js resource integrity
* @param _p5jsIntegrity The hash of the p5js file (to protect w subresource integrity)
*/
function setJsIntegrity(string memory _p5jsIntegrity) public onlyOwner {
p5jsIntegrity = _p5jsIntegrity;
}
/**
* @dev Sets the base image url
* @param _imageUrl The base url for image field
*/
function setImageUrl(string memory _imageUrl) public onlyOwner {
imageUrl = _imageUrl;
}
/**
* @dev Sets the base animation url
* @param _animationUrl The base url for animations
*/
function setAnimationUrl(string memory _animationUrl) public onlyOwner {
animationUrl = _animationUrl;
}
/**
* @notice Set the token minter.
* @dev Only callable by the owner when not locked.
*/
function setMinter(address _minter) external override onlyOwner whenMinterNotLocked {
minter = _minter;
emit MinterUpdated(_minter);
}
/**
* @notice Lock the minter.
* @dev This cannot be reversed and is only callable by the owner when not locked.
*/
function lockMinter() external override onlyOwner whenMinterNotLocked {
isMinterLocked = true;
emit MinterLocked();
}
/**
* @notice Set the _contractURIHash.
* @dev Only callable by the owner.
*/
function setContractURIHash(string memory newContractURIHash) external onlyOwner {
_contractURIHash = newContractURIHash;
}
}
{
"compilationTarget": {
"Axons.sol": "Axons"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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