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0x4D6E9bb71bb5cDd978005c96Cb76C8E912c30933
 

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Withdraw161571502022-12-10 21:59:47717 days ago1670709587IN
0x4D6E9bb7...912c30933
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Withdraw160243512022-11-22 8:26:47735 days ago1669105607IN
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0 ETH0.0013959411.26919238
Deposit159635562022-11-13 20:40:35744 days ago1668372035IN
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0 ETH0.0040828123.93350003
Withdraw158799342022-11-02 4:25:11755 days ago1667363111IN
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0 ETH0.0011298911.62624159
Deposit158535112022-10-29 11:47:11759 days ago1667044031IN
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0 ETH0.001814110.63505741
Deposit158447202022-10-28 6:19:11760 days ago1666937951IN
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0 ETH0.0021749612.74969128
Withdraw157800552022-10-19 5:26:11769 days ago1666157171IN
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0 ETH0.0020634616.34586998
Withdraw157639792022-10-16 23:33:11771 days ago1665963191IN
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0 ETH0.0011848112.19137684
Withdraw157363932022-10-13 3:05:11775 days ago1665630311IN
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0 ETH0.001226912.62447358
Withdraw156786882022-10-05 1:39:47783 days ago1664933987IN
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0 ETH0.0012872410.19697988
Withdraw156138362022-09-26 0:01:47792 days ago1664150507IN
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0 ETH0.000583116
Withdraw156042382022-09-24 15:52:47794 days ago1664034767IN
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0 ETH0.0011986.44516718
Withdraw155899432022-09-22 16:02:35796 days ago1663862555IN
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0 ETH0.003959921.30632372
Withdraw155544652022-09-17 16:23:11801 days ago1663431791IN
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Withdraw155441442022-09-16 5:34:11802 days ago1663306451IN
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0 ETH0.000867194
Withdraw155223812022-09-12 18:26:36806 days ago1663007196IN
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0 ETH0.0016652113.19109702
Withdraw155087362022-09-10 12:10:19808 days ago1662811819IN
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0 ETH0.000879089.04547589
Withdraw154704462022-09-04 7:52:30814 days ago1662277950IN
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0 ETH0.000826496.5471527
Withdraw154638942022-09-03 6:50:05815 days ago1662187805IN
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0 ETH0.000626536.44683694
Withdraw154250602022-08-28 1:47:13821 days ago1661651233IN
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0 ETH0.000818358.42061173
Withdraw154250572022-08-28 1:46:03821 days ago1661651163IN
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0 ETH0.000846177.92409759
Withdraw154204022022-08-27 8:02:49822 days ago1661587369IN
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0 ETH0.000971789.99928222
Withdraw154148862022-08-26 10:41:11823 days ago1661510471IN
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0 ETH0.000939167.43965326
Withdraw154034782022-08-24 14:39:15825 days ago1661351955IN
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0 ETH0.0023448415.09967794
Withdraw154027322022-08-24 11:44:15825 days ago1661341455IN
0x4D6E9bb7...912c30933
0 ETH0.000641645.61447002
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Contract Source Code Verified (Exact Match)

Contract Name:
MoopyStaking

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
File 1 of 8 : MoopyStaking.sol
// SPDX-License-Identifier: MIT
/*                
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@......@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%%%&@@@....@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%%%%%%%%%%%%%%%%#((%%@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@%%%%%%%%%%@@@@@@@((((((((((%@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@(  ((((((((((@@(%%%%%%%%@@           @@(((((((%%@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@     ((((((((((((((%%%%@.      @@@       @&(((((%%.@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@    ((((((((((((((%%@..    @&&&&&&@      @(((%%%..@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@    ((((((((((((((@...   @&**&&&%,@.     @((%%....&@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@ @*(((((((((((((@...     @@**   &@      @%%......,@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@   ((((((((((((@....      .@*  &&@     @&.........@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@     ((((((((((#@....    @ ,,,,,&@     @*.........#@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@      ((((((((((%@....    @@@@@       @*@..........@@@@@@@@@@@@@@@@
@@@@@@@@@@@@(     (((((((((((((@@..........@@@@@@%............,%%@@@@@@@@@@@@@@@
@@@@@@@@@@@@@((((((((((((((((((@@#(((((((&@@ /@@@............%%%%&@@@@@@@@@@@@@@
@@@@@@@@@@@@@((((((((((((((((((((((((((((@  ****@@..........%%%%%%@@@@@@@@@@@@@@
@@@@@@@@@@@@@@(((((((((((((((((((((((((((@&   ***@........%%%%%%%%@@@@@@@@@@@@@@
@@@@@@@@@@@@@@#(((((((((((((((((((((((((((@  ****@((/...%%%%%%%%%%@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@(((((((((((((#(((((((((((((@  ****@((((((((%%%%%%%%@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@((((((%%%......(((((((((((@   .**@(((((((((((((%%%@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@%%%%.............(((((((((@  ***@((((((((((((((((%@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@%%....%%............((((((((@@&(((((((((((((@@((((@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@%.....@@...............(((((((((((((((((((((@@((((@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@......@@...................(((((((((((((((((@(((((@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@%.....@@................         /((((((((((@((((@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@%%%#...@@...........                        @@((((@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@%%%%%%%@@...                                @((((@@@@@@@@@@@@@@@@                
*/
/****************************************
 * @author: 0xlunes              		*
 * @team:   Moopy	                    *
 ****************************************
 * NFT Staking implementation for Moopy	*
 *										*
 * Reward distribution based on 		*
 * Masterchef implementation			*
 ****************************************/
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

// Additional method available for Mooney
interface IMooney is IERC20 {
	function mint(address to, uint256 amount) external;
}

// Additional methods available for sMoopy
interface ISmoopy is IERC721 {
	function mint(address to, uint256 id) external;
	function burn(address from, uint256 tokenId) external;
}

contract MoopyStaking is Ownable {
	using SafeERC20 for IERC20;

	// Info of each user.
    struct UserInfo {
        uint256 shares; // total Moopies staked     
        uint256 rewardDebt; // amount of Moonies claimed at last update
		mapping(uint256 => bool) stakedIds; // all tokens staked by the user
    }

	// Moopy Contract 
	IERC721 public moopy = IERC721(0xeEE01E9364C2bF5AfF24328FB5bDFb98fF5cEeE3);

	// Mooney Contract
	IMooney public mooney = IMooney(0x2A86C73326771795E7f7e6Fd1ea7fdAB993dEc9D);

	// Smoopy Contract
	ISmoopy public smoopy = ISmoopy(0x46421dA2579E1151212e11FDf61cCd836254b27D);

	// Treasury wallet address
	address public devAddress = 0x1111d7B4976cc9310b15BcB3123395b308451111;

	// Total Mooney emission per Ethereum block 
	uint256 public rewardsPerBlock = 27550000000000000000; // * 10e18
	
    // Block number when staking rewards starts.
    uint256 public startBlock = 1659013200;

	// Update rewards once per block
	uint256 public lastRewardBlock = startBlock;

	// Accumulated rewards per Moopy staked
	uint256 public accRewardsPerShare = 0;

	// Allows holders to stake Moopy
	bool public isStakingActive = false;

	// Details of all stakers
    mapping(address => UserInfo) public userInfo;
	
    event Deposit(address indexed user, uint256[] tokenIds);
    event Withdraw(address indexed user, uint256[] tokenIds);
    event EmergencyWithdraw(address indexed user, uint256[] tokenIds);

	constructor() {}

	function updatePool() public {
		if(block.number < lastRewardBlock) {
			return;
		}

		uint256 totalShares = moopy.balanceOf(address(this));

		if(totalShares == 0) {
			lastRewardBlock = block.number;
			return;
		}

		uint256 duration = block.number - lastRewardBlock;
		uint256 accRewards = rewardsPerBlock * duration;
		
		mooney.mint(devAddress, accRewards * 3 / 20);
		mooney.mint(address(this), accRewards);

		accRewardsPerShare += accRewards / totalShares;
		lastRewardBlock = block.number;
	}

	function deposit(uint256[] calldata _tokenIds) public {
		require(isStakingActive, "staking not active");

		UserInfo storage user = userInfo[msg.sender];

		updatePool();

		if (user.shares > 0) {
			uint256 pending = user.shares * accRewardsPerShare  - user.rewardDebt;
			mooney.transfer(msg.sender, pending);
		}

		uint256 length = _tokenIds.length;
		for(uint256 i = 0; i < length; i++) {
			moopy.transferFrom(msg.sender, address(this), _tokenIds[i]);
			user.stakedIds[_tokenIds[i]] = true;	
			smoopy.mint(msg.sender, _tokenIds[i]);	
		}

		user.shares += length;
		user.rewardDebt = user.shares * accRewardsPerShare;

		emit Deposit(msg.sender, _tokenIds);
	}

	function withdraw(uint256[] calldata _tokenIds) public {
		UserInfo storage user = userInfo[msg.sender];

		updatePool();

		uint256 pending = user.shares * accRewardsPerShare - user.rewardDebt;

		mooney.transfer(msg.sender, pending);

		uint256 length = _tokenIds.length;	
		
		user.shares -= length;
		user.rewardDebt = user.shares * accRewardsPerShare;

		for (uint256 i; i < length; i++){
			require(user.stakedIds[_tokenIds[i]], "token not staked");
			moopy.transferFrom(address(this), msg.sender, _tokenIds[i]);
			user.stakedIds[_tokenIds[i]] = false;

			if (smoopy.ownerOf(_tokenIds[i]) != address(0)) {
				smoopy.burn(smoopy.ownerOf(_tokenIds[i]), _tokenIds[i]);
			}
		}

		emit Withdraw(msg.sender, _tokenIds);
	}

	function claimRewards() public {
		UserInfo storage user = userInfo[msg.sender];

		updatePool();

		uint256 pending = user.shares * accRewardsPerShare - user.rewardDebt;

		mooney.transfer(msg.sender, pending);

		user.rewardDebt = user.shares * accRewardsPerShare;
	}

	function emergencyWithdraw(uint256[] memory _tokenIds) public {
		UserInfo storage user = userInfo[msg.sender];

		uint256 length = _tokenIds.length;

		for (uint256 i; i < length; i++){
			require(user.stakedIds[_tokenIds[i]], "token not staked");
			moopy.transferFrom(address(this), msg.sender, _tokenIds[i]);
			user.stakedIds[_tokenIds[i]] = false;
		}

		user.shares = 0;
		user.rewardDebt = 0;

		emit EmergencyWithdraw(msg.sender, _tokenIds);
	}

	// public view
	function getStakedTokens(address _user) external view returns(uint256[] memory) {
		UserInfo storage user = userInfo[_user];

		require(user.shares > 0, "no staked tokens");
	
		uint256 count;
		uint256 quantity = user.shares;
		uint256 length = 5000;
		uint256[] memory wallet = new uint256[](quantity);
		for (uint256 i; i < length; i++) {
			if (user.stakedIds[i]) {
				wallet[count++] = i;
				if (count == quantity) break;
			}
		}
		return wallet;
	}

	function pendingRewards(address _user) external view returns(uint256) {
        UserInfo storage user = userInfo[_user];

		uint256 totalShares = moopy.balanceOf(address(this));

		uint256 _accRewardsPerShare = accRewardsPerShare;

		if(block.number >= lastRewardBlock && totalShares != 0) {
			uint256 duration = block.number - lastRewardBlock;
			uint256 accRewards = rewardsPerBlock * duration;

			_accRewardsPerShare += accRewards / totalShares;
		}

		return user.shares * _accRewardsPerShare - user.rewardDebt;

	}

	// only owner
	function setStartBlock(uint256 _startBlock) public onlyOwner {
		startBlock = _startBlock;
		lastRewardBlock = startBlock;
	}

	function setRewardsPerBlock(uint256 _rewardsPerBlock) public onlyOwner{
		rewardsPerBlock = _rewardsPerBlock;
	}

	function setStakingActive() public onlyOwner {
		isStakingActive = !isStakingActive;
	}

	function setMoopy(address _newMoopyAddress) public onlyOwner {
		moopy = IERC721(_newMoopyAddress);
	}

	function setSmoopy(address _newSmoopyAddress) public onlyOwner {
		smoopy = ISmoopy(_newSmoopyAddress);
	}
	
	function setMooney(address _newMooneyAddress) public onlyOwner {
		mooney = IMooney(_newMooneyAddress);
	}

	function setDevAddr(address _devAddr) public onlyOwner {
		devAddress = _devAddr;
	}
}

File 2 of 8 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev 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 {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 3 of 8 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 4 of 8 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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 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 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);
}

File 5 of 8 : 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;
    }
}

File 6 of 8 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

File 7 of 8 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 8 of 8 : 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);
}

Settings
{
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"EmergencyWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"Withdraw","type":"event"},{"inputs":[],"name":"accRewardsPerShare","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"devAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"getStakedTokens","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isStakingActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastRewardBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mooney","outputs":[{"internalType":"contract IMooney","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"moopy","outputs":[{"internalType":"contract IERC721","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"pendingRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardsPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_devAddr","type":"address"}],"name":"setDevAddr","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newMooneyAddress","type":"address"}],"name":"setMooney","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newMoopyAddress","type":"address"}],"name":"setMoopy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewardsPerBlock","type":"uint256"}],"name":"setRewardsPerBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newSmoopyAddress","type":"address"}],"name":"setSmoopy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"setStakingActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_startBlock","type":"uint256"}],"name":"setStartBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"smoopy","outputs":[{"internalType":"contract ISmoopy","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"startBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"updatePool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userInfo","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"uint256","name":"rewardDebt","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.