文件 1 的 12:Address.sol
pragma solidity >=0.6.2 <0.8.0;
library Address {
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly { size := extcodesize(account) }
return size > 0;
}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
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");
}
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);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
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);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
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);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 12:Context.sol
pragma solidity >=0.6.0 <0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
文件 3 的 12:CryptoCorgisBreeder.sol
pragma solidity ^0.7.0;
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "./interfaces/FactoryERC1155.sol";
contract CryptoCorgisBreeder is Ownable, FactoryERC1155, ERC1155 {
using SafeMath for uint256;
event CorgiSold(uint256 corgiNumber, uint256 blockNumber, uint8 mutantCorgiId, address owner);
uint256 public constant MAX_INT_256 = 2**256 - 1;
uint256 public constant MAX_CORGIS_MINTED = 10000;
uint256 public constant CORGI_LIFESPAN_BLOCKS = 256;
uint256 public constant FIRST_CORGI_PRICE_ETH = 1e16;
uint256 public constant INCREMENTAL_PRICE_ETH = 1e14;
uint256 public constant NUMBER_MUTANT_CORGIS = 31;
uint256 public constant MUTANT_CORGI_PROBABILITY = NUMBER_MUTANT_CORGIS * 6;
address payable public treasuryAddress;
uint256 public corgisMinted = 0;
mapping(uint256 => uint256) public corgiNumberToBlockNumber;
mapping(uint256 => uint256) public blockNumberToCorgiNumber;
mapping(uint8 => uint256) public mutantCorgiIdToBlockNumber;
mapping(uint256 => string) public corgiIdToName;
string private contractDataURI;
constructor(
string memory _metadataURI,
string memory _contractDataURI,
address payable _treasuryAddress
) ERC1155(_metadataURI) {
contractDataURI = _contractDataURI;
treasuryAddress = _treasuryAddress;
}
function name() external pure override returns (string memory) {
return "Crypto Corgis Breeder";
}
function symbol() external pure override returns (string memory) {
return "CORGI";
}
function numOptions() external pure override returns (uint256) {
return MAX_INT_256;
}
function supportsFactoryInterface() external pure override returns (bool) {
return true;
}
function factorySchemaName() external pure override returns (string memory) {
return "ERC1155";
}
function getClaimedCorgis() external view returns (uint256[] memory) {
uint256[] memory blockNumbers = new uint256[](corgisMinted);
for (uint256 i = 0; i < corgisMinted; i++) {
blockNumbers[i] = corgiNumberToBlockNumber[i + 1];
}
return blockNumbers;
}
function nameCorgi(uint256 id, string memory name) public {
require(balanceOf(msg.sender, id) == 1, "CryptoCorgisBreeder: Cannot name a corgi you do not own");
require(bytes(name).length > 0, "CryptoCorgisBreeder: Cannot erase a corgi name");
require(bytes(corgiIdToName[id]).length == 0, "CryptoCorgisBreeder: Can only name a corgi once");
corgiIdToName[id] = name;
}
function contractURI() public view returns (string memory) {
return contractDataURI;
}
function setContractDataURI(string memory _contractDataURI) public onlyOwner {
contractDataURI = _contractDataURI;
}
function setURI(string memory _uri) public onlyOwner {
_setURI(_uri);
}
function dnaForBlockNumber(uint256 _blockNumber) external pure returns (bytes32) {
return keccak256(abi.encodePacked(_blockNumber));
}
function canMint(uint256 _blockNumber, uint256 _amount) public view override returns (bool) {
(bool _, uint256 subResult) = block.number.trySub(CORGI_LIFESPAN_BLOCKS);
if (_blockNumber > block.number || _blockNumber < subResult || _amount > 1) {
return false;
}
return blockNumberToCorgiNumber[_blockNumber] == 0;
}
function priceForCorgi(uint256 _corgiNumber) public pure returns (uint256) {
return FIRST_CORGI_PRICE_ETH.add(INCREMENTAL_PRICE_ETH.mul(_corgiNumber.sub(1)));
}
function isMutantCorgi(uint256 _blockNumber) public pure returns (bool, uint8) {
return isMutantCorgi(keccak256(abi.encodePacked(_blockNumber)));
}
function isMutantCorgi(bytes32 _corgiDna) public pure returns (bool, uint8) {
uint256 corgiDnaNum = uint256(_corgiDna);
uint16 lastTwoBytesValue = uint16(corgiDnaNum);
if (lastTwoBytesValue < MUTANT_CORGI_PROBABILITY) {
return (true, uint8(lastTwoBytesValue / 6) + 1);
}
return (false, 0);
}
function mint(uint256 _blockNumber, bytes calldata _data) public payable {
mint(_blockNumber, msg.sender, 1, msg.sender, _data);
}
function mint(
uint256 _blockNumber,
address _toAddress,
uint256 _amount,
bytes calldata _data
) public payable override {
mint(_blockNumber, _toAddress, _amount, msg.sender, _data);
}
function mint(
uint256 _blockNumber,
address _toAddress,
uint256 _amount,
address payable _refundAddress,
bytes calldata _data
) public payable {
require(corgisMinted < MAX_CORGIS_MINTED, "CryptoCorgisBreeder: Cannot mint any more Crypto Corgis");
require(canMint(_blockNumber, _amount), "CryptoCorgisBreeder: Not allowed to mint for that block number");
uint256 nextCorgiId = corgisMinted + 1;
uint256 price = priceForCorgi(nextCorgiId);
require(msg.value >= price, "CryptoCorgisBreeder: Insufficient funds to mint a Crypto Corgi");
treasuryAddress.transfer(price);
_refundAddress.transfer(msg.value.sub(price));
bytes32 corgiDna = keccak256(abi.encodePacked(_blockNumber));
(bool isMutant, uint8 mutantId) = isMutantCorgi(corgiDna);
if (isMutant) {
require(mutantCorgiIdToBlockNumber[mutantId] == 0, "CryptoCorgisBreeder: Crypto Corgi mutant already claimed");
mutantCorgiIdToBlockNumber[mutantId] = _blockNumber;
}
corgiNumberToBlockNumber[nextCorgiId] = _blockNumber;
blockNumberToCorgiNumber[_blockNumber] = nextCorgiId;
_mint(_toAddress, _blockNumber, 1, _data);
corgisMinted = nextCorgiId;
emit CorgiSold(nextCorgiId, _blockNumber, mutantId, _toAddress);
}
}
文件 4 的 12:ERC1155.sol
pragma solidity >=0.6.0 <0.8.0;
import "./IERC1155.sol";
import "./IERC1155MetadataURI.sol";
import "./IERC1155Receiver.sol";
import "../../utils/Context.sol";
import "../../introspection/ERC165.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
using SafeMath for uint256;
using Address for address;
mapping (uint256 => mapping(address => uint256)) private _balances;
mapping (address => mapping(address => bool)) private _operatorApprovals;
string private _uri;
bytes4 private constant _INTERFACE_ID_ERC1155 = 0xd9b67a26;
bytes4 private constant _INTERFACE_ID_ERC1155_METADATA_URI = 0x0e89341c;
constructor (string memory uri_) public {
_setURI(uri_);
_registerInterface(_INTERFACE_ID_ERC1155);
_registerInterface(_INTERFACE_ID_ERC1155_METADATA_URI);
}
function uri(uint256) external view virtual override returns (string memory) {
return _uri;
}
function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
require(account != address(0), "ERC1155: balance query for the zero address");
return _balances[id][account];
}
function balanceOfBatch(
address[] memory accounts,
uint256[] memory ids
)
public
view
virtual
override
returns (uint256[] memory)
{
require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");
uint256[] memory batchBalances = new uint256[](accounts.length);
for (uint256 i = 0; i < accounts.length; ++i) {
batchBalances[i] = balanceOf(accounts[i], ids[i]);
}
return batchBalances;
}
function setApprovalForAll(address operator, bool approved) public virtual override {
require(_msgSender() != operator, "ERC1155: setting approval status for self");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
return _operatorApprovals[account][operator];
}
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
)
public
virtual
override
{
require(to != address(0), "ERC1155: transfer to the zero address");
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: caller is not owner nor approved"
);
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][from] = _balances[id][from].sub(amount, "ERC1155: insufficient balance for transfer");
_balances[id][to] = _balances[id][to].add(amount);
emit TransferSingle(operator, from, to, id, amount);
_doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
}
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
)
public
virtual
override
{
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
require(to != address(0), "ERC1155: transfer to the zero address");
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: transfer caller is not owner nor approved"
);
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, ids, amounts, data);
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
uint256 amount = amounts[i];
_balances[id][from] = _balances[id][from].sub(
amount,
"ERC1155: insufficient balance for transfer"
);
_balances[id][to] = _balances[id][to].add(amount);
}
emit TransferBatch(operator, from, to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
}
function _setURI(string memory newuri) internal virtual {
_uri = newuri;
}
function _mint(address account, uint256 id, uint256 amount, bytes memory data) internal virtual {
require(account != address(0), "ERC1155: mint to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][account] = _balances[id][account].add(amount);
emit TransferSingle(operator, address(0), account, id, amount);
_doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
}
function _mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal virtual {
require(to != address(0), "ERC1155: mint to the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
for (uint i = 0; i < ids.length; i++) {
_balances[ids[i]][to] = amounts[i].add(_balances[ids[i]][to]);
}
emit TransferBatch(operator, address(0), to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
}
function _burn(address account, uint256 id, uint256 amount) internal virtual {
require(account != address(0), "ERC1155: burn from the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
_balances[id][account] = _balances[id][account].sub(
amount,
"ERC1155: burn amount exceeds balance"
);
emit TransferSingle(operator, account, address(0), id, amount);
}
function _burnBatch(address account, uint256[] memory ids, uint256[] memory amounts) internal virtual {
require(account != address(0), "ERC1155: burn from the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, account, address(0), ids, amounts, "");
for (uint i = 0; i < ids.length; i++) {
_balances[ids[i]][account] = _balances[ids[i]][account].sub(
amounts[i],
"ERC1155: burn amount exceeds balance"
);
}
emit TransferBatch(operator, account, address(0), ids, amounts);
}
function _beforeTokenTransfer(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
)
internal
virtual
{ }
function _doSafeTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
)
private
{
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
if (response != IERC1155Receiver(to).onERC1155Received.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _doSafeBatchTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
)
private
{
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (bytes4 response) {
if (response != IERC1155Receiver(to).onERC1155BatchReceived.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
uint256[] memory array = new uint256[](1);
array[0] = element;
return array;
}
}
文件 5 的 12:ERC165.sol
pragma solidity >=0.6.0 <0.8.0;
import "./IERC165.sol";
abstract contract ERC165 is IERC165 {
bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;
mapping(bytes4 => bool) private _supportedInterfaces;
constructor () internal {
_registerInterface(_INTERFACE_ID_ERC165);
}
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return _supportedInterfaces[interfaceId];
}
function _registerInterface(bytes4 interfaceId) internal virtual {
require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
_supportedInterfaces[interfaceId] = true;
}
}
文件 6 的 12:FactoryERC1155.sol
pragma solidity ^0.7.0;
interface FactoryERC1155 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function numOptions() external view returns (uint256);
function canMint(uint256 _optionId, uint256 _amount) external view returns (bool);
function supportsFactoryInterface() external view returns (bool);
function factorySchemaName() external view returns (string memory);
function mint(
uint256 _optionId,
address _toAddress,
uint256 _amount,
bytes calldata _data
) external payable;
}
文件 7 的 12:IERC1155.sol
pragma solidity >=0.6.2 <0.8.0;
import "../../introspection/IERC165.sol";
interface IERC1155 is IERC165 {
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
event TransferBatch(address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values);
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
event URI(string value, uint256 indexed id);
function balanceOf(address account, uint256 id) external view returns (uint256);
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory);
function setApprovalForAll(address operator, bool approved) external;
function isApprovedForAll(address account, address operator) external view returns (bool);
function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes calldata data) external;
function safeBatchTransferFrom(address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data) external;
}
文件 8 的 12:IERC1155MetadataURI.sol
pragma solidity >=0.6.2 <0.8.0;
import "./IERC1155.sol";
interface IERC1155MetadataURI is IERC1155 {
function uri(uint256 id) external view returns (string memory);
}
文件 9 的 12:IERC1155Receiver.sol
pragma solidity >=0.6.0 <0.8.0;
import "../../introspection/IERC165.sol";
interface IERC1155Receiver is IERC165 {
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
)
external
returns(bytes4);
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
)
external
returns(bytes4);
}
文件 10 的 12:IERC165.sol
pragma solidity >=0.6.0 <0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 11 的 12:Ownable.sol
pragma solidity >=0.6.0 <0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
文件 12 的 12:SafeMath.sol
pragma solidity >=0.6.0 <0.8.0;
library SafeMath {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
{
"compilationTarget": {
"contracts/CryptoCorgisBreeder.sol": "CryptoCorgisBreeder"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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