Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/*
*/

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";

interface ICryptid {
    function ownerMint(uint256 numberOfTokens) external;
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;
    function getLastTokenId() external view returns (uint256);
    function transferOwnership(address newOwner) external;


}

contract CryptidsFreeMint is Ownable, IERC721Receiver {


    ICryptid public constant CRYPTID = ICryptid(0x0B68BE2e1072204E68c6C0b8b46ac108E3E3dDd0);

    bool public isPublicSaleActive;

    mapping(address => bool) public claimed;

    // ============ ACCESS CONTROL/SANITY MODIFIERS ============

    modifier publicSaleActive() {
        require(isPublicSaleActive, "Public sale is not open");
        _;
    }

    // ---  PUBLIC MINTING FUNCTIONS ---

    // mint allows for regular minting while the supply does not exceed maxCryptids.
    function mint()
        external
    {
        require(claimed[msg.sender] == false, "already claimed");
        claimed[msg.sender] = true;
        CRYPTID.ownerMint(2);
        CRYPTID.transferFrom(address(this), msg.sender, (CRYPTID.getLastTokenId() - 1));
        CRYPTID.transferFrom(address(this), msg.sender, CRYPTID.getLastTokenId());
    }

    function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) public override returns (bytes4) {
            return this.onERC721Received.selector;
    }

    function returnOwnership() public onlyOwner {
        CRYPTID.transferOwnership(owner());
    }
}

// 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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts 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;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 5000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"CRYPTID","outputs":[{"internalType":"contract ICryptid","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isPublicSaleActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"returnOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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