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//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

import "./WorldContracts.sol";

contract World is Initializable, WorldContracts {

    using EnumerableSetUpgradeable for EnumerableSetUpgradeable.UintSet;

    function initialize() external initializer {
        WorldContracts.__WorldContracts_init();
    }

    function transferToadzToHuntingGrounds(
        uint256[] calldata _tokenIds)
    external
    whenNotPaused
    contractsAreSet
    onlyEOA
    nonZeroLength(_tokenIds)
    {
        for(uint256 i = 0; i < _tokenIds.length; i++) {
            uint256 _tokenId = _tokenIds[i];

            _requireValidToadAndLocation(_tokenId, Location.HUNTING_GROUNDS);

            // From
            _transferFromLocation(_tokenId);

            // To
            huntingGrounds.startHunting(_tokenId);

            // Finalize
            tokenIdToInfo[_tokenId].location = Location.HUNTING_GROUNDS;
        }

        emit ToadLocationChanged(_tokenIds, msg.sender, Location.HUNTING_GROUNDS);
    }

    function transferToadzToWorld(
        uint256[] calldata _tokenIds)
    external
    whenNotPaused
    contractsAreSet
    onlyEOA
    nonZeroLength(_tokenIds)
    {
        for(uint256 i = 0; i < _tokenIds.length; i++) {
            uint256 _tokenId = _tokenIds[i];

            _requireValidToadAndLocation(_tokenId, Location.WORLD);

            // From
            _transferFromLocation(_tokenId);

            // To
            // Nothing needed for world

            // Finalize
            tokenIdToInfo[_tokenId].location = Location.WORLD;
        }

        emit ToadLocationChanged(_tokenIds, msg.sender, Location.WORLD);
    }

    function transferToadzOutOfWorld(
        uint256[] calldata _tokenIds)
    external
    whenNotPaused
    contractsAreSet
    onlyEOA
    nonZeroLength(_tokenIds)
    {
        for(uint256 i = 0; i < _tokenIds.length; i++) {
            uint256 _tokenId = _tokenIds[i];

            _requireValidToadAndLocation(_tokenId, Location.NOT_STAKED);

            // From
            _transferFromLocation(_tokenId);

            // To
            // Unstake the toad.

            ownerToStakedTokens[msg.sender].remove(_tokenId);
            delete tokenIdToInfo[_tokenId];
            toadz.adminSafeTransferFrom(address(this), msg.sender, _tokenId);

            // Finalize
            tokenIdToInfo[_tokenId].location = Location.NOT_STAKED;
        }

        emit ToadLocationChanged(_tokenIds, msg.sender, Location.NOT_STAKED);
    }

    function transferToadzToAdventure(
        uint256[] calldata _tokenIds,
        string calldata _adventureName,
        uint256[][] calldata _itemInputIds)
    external
    whenNotPaused
    contractsAreSet
    onlyEOA
    nonZeroLength(_tokenIds)
    {
        require(_tokenIds.length == _itemInputIds.length, "World: Bad adventure array lengths");

        for(uint256 i = 0; i < _tokenIds.length; i++) {
            uint256 _tokenId = _tokenIds[i];

            _requireValidToadAndLocation(_tokenId, Location.ADVENTURE);

            // From
            _transferFromLocation(_tokenId);

            // To
            adventure.startAdventure(msg.sender, _tokenId, _adventureName, _itemInputIds[i]);

            // Finalize
            tokenIdToInfo[_tokenId].location = Location.ADVENTURE;
        }

        emit ToadLocationChanged(_tokenIds, msg.sender, Location.ADVENTURE);
    }

    function _transferFromLocation(uint256 _tokenId) private {
        Location _oldLocation = tokenIdToInfo[_tokenId].location;

        if(_oldLocation == Location.WORLD) {
            // Nothing to do here.
        } else if(_oldLocation == Location.HUNTING_GROUNDS) {

            huntingGrounds.stopHunting(_tokenId, msg.sender);
        } else if(_oldLocation == Location.ADVENTURE) {

            adventure.finishAdventure(msg.sender, _tokenId);
        } else if(_oldLocation == Location.NOT_STAKED) {

            tokenIdToInfo[_tokenId].owner = msg.sender;

            ownerToStakedTokens[msg.sender].add(_tokenId);

            // Will revert if user doesn't own token.
            toadz.adminSafeTransferFrom(msg.sender, address(this), _tokenId);
        } else {
            revert("World: Unknown from location");
        }
    }

    function _requireValidToadAndLocation(uint256 _tokenId, Location _newLocation) private view {
        Location _oldLocation = tokenIdToInfo[_tokenId].location;

        // If the location is NOT_STAKED, the toad is not in the world yet, so checking the owner wouldn't make sense.
        //
        if(_oldLocation != Location.NOT_STAKED) {
            require(ownerToStakedTokens[msg.sender].contains(_tokenId), "World: User does not own toad");
        }

        require(_oldLocation != _newLocation, "World: Location must be different for toad");
    }

    function toadzStakedForOwner(address _owner) external view returns(uint256[] memory) {
        return ownerToStakedTokens[_owner].values();
    }

    function ownerForStakedToad(uint256 _tokenId) public view override returns(address) {
        address _owner = tokenIdToInfo[_tokenId].owner;
        require(_owner != address(0), "World: Toad is not staked");
        return _owner;
    }

    function locationForStakedToad(uint256 _tokenId) public view override returns(Location) {
        return tokenIdToInfo[_tokenId].location;
    }

    function isToadStaked(uint256 _tokenId) public view returns(bool) {
        return tokenIdToInfo[_tokenId].owner != address(0);
    }

    function infoForToad(uint256 _tokenId) external view returns(TokenInfo memory) {
        require(isToadStaked(_tokenId), "World: Toad is not staked");
        return tokenIdToInfo[_tokenId];
    }
}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _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);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
        // contract may have been reentered.
        require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} modifier, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 IERC721ReceiverUpgradeable {
    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @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;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.0;

import "../IERC721ReceiverUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
 */
contract ERC721HolderUpgradeable is Initializable, IERC721ReceiverUpgradeable {
    function __ERC721Holder_init() internal onlyInitializing {
    }

    function __ERC721Holder_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address,
        address,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC721Received.selector;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// 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 AddressUpgradeable {
    /**
     * @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 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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// 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 IERC165Upgradeable {
    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSetUpgradeable {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

import "./UtilitiesUpgradeable.sol";

// Do not add state to this contract.
//
contract AdminableUpgradeable is UtilitiesUpgradeable {

    mapping(address => bool) private admins;

    function __Adminable_init() internal initializer {
        UtilitiesUpgradeable.__Utilities__init();
    }

    function addAdmin(address _address) external onlyOwner {
        admins[_address] = true;
    }

    function addAdmins(address[] calldata _addresses) external onlyOwner {
        for(uint256 i = 0; i < _addresses.length; i++) {
            admins[_addresses[i]] = true;
        }
    }

    function removeAdmin(address _address) external onlyOwner {
        admins[_address] = false;
    }

    function removeAdmins(address[] calldata _addresses) external onlyOwner {
        for(uint256 i = 0; i < _addresses.length; i++) {
            admins[_addresses[i]] = false;
        }
    }

    function setPause(bool _shouldPause) external onlyAdminOrOwner {
        if(_shouldPause) {
            _pause();
        } else {
            _unpause();
        }
    }

    function isAdmin(address _address) public view returns(bool) {
        return admins[_address];
    }

    modifier onlyAdmin() {
        require(admins[msg.sender], "Not admin");
        _;
    }

    modifier onlyAdminOrOwner() {
        require(admins[msg.sender] || isOwner(), "Not admin or owner");
        _;
    }

    uint256[50] private __gap;
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

contract UtilitiesUpgradeable is Initializable, OwnableUpgradeable, PausableUpgradeable {

    function __Utilities__init() internal initializer {
        OwnableUpgradeable.__Ownable_init();
        PausableUpgradeable.__Pausable_init();

        _pause();
    }

    modifier nonZeroAddress(address _address) {
        require(address(0) != _address, "0 address");
        _;
    }

    modifier nonZeroLength(uint[] memory _array) {
        require(_array.length > 0, "Empty array");
        _;
    }

    modifier lengthsAreEqual(uint[] memory _array1, uint[] memory _array2) {
        require(_array1.length == _array2.length, "Unequal lengths");
        _;
    }

    modifier onlyEOA() {
        /* solhint-disable avoid-tx-origin */
        require(msg.sender == tx.origin, "No contracts");
        _;
    }

    function isOwner() internal view returns(bool) {
        return owner() == msg.sender;
    }

    function compareStrings(string memory a, string memory b) internal pure returns (bool) {
        return (keccak256(abi.encodePacked((a))) == keccak256(abi.encodePacked((b))));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IAdventure {

    function startAdventure(address _owner, uint256 _tokenId, string calldata _adventureName, uint256[] calldata _itemInputIds) external;

    function finishAdventure(address _owner, uint256 _tokenId) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IHuntingGrounds {

    function startHunting(uint256 _tokenId) external;

    function stopHunting(uint256 _tokenId, address _owner) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

library ToadTraitConstants {

    string constant public SVG_HEADER = '<svg id="toad" width="100%" height="100%" version="1.1" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">';
    string constant public SVG_FOOTER = '<style>#toad{shape-rendering: crispedges; image-rendering: -webkit-crisp-edges; image-rendering: -moz-crisp-edges; image-rendering: crisp-edges; image-rendering: pixelated; -ms-interpolation-mode: nearest-neighbor;}</style></svg>';

    string constant public RARITY = "Rarity";
    string constant public BACKGROUND = "Background";
    string constant public MUSHROOM = "Mushroom";
    string constant public SKIN = "Skin";
    string constant public CLOTHES = "Clothes";
    string constant public MOUTH = "Mouth";
    string constant public EYES = "Eyes";
    string constant public ITEM = "Item";
    string constant public HEAD = "Head";
    string constant public ACCESSORY = "Accessory";

    string constant public RARITY_COMMON = "Common";
    string constant public RARITY_1_OF_1 = "1 of 1";
}

enum ToadRarity {
    COMMON,
    ONE_OF_ONE
}

enum ToadBackground {
    GREY,
    PURPLE,
    GREEN,
    BROWN,
    YELLOW,
    PINK,
    SKY_BLUE,
    MINT,
    ORANGE,
    RED,
    SKY,
    SUNRISE,
    SPRING,
    WATERMELON,
    SPACE,
    CLOUDS,
    SWAMP,
    GOLDEN,
    DARK_PURPLE
}

enum ToadMushroom {
    COMMON,
    ORANGE,
    BROWN,
    RED_SPOTS,
    GREEN,
    BLUE,
    YELLOW,
    GREY,
    PINK,
    ICE,
    GOLDEN,
    RADIOACTIVE,
    CRYSTAL,
    ROBOT
}

enum ToadSkin {
    OG_GREEN,
    BROWN,
    DARK_GREEN,
    ORANGE,
    GREY,
    BLUE,
    PURPLE,
    PINK,
    RAINBOW,
    GOLDEN,
    RADIOACTIVE,
    CRYSTAL,
    SKELETON,
    ROBOT,
    SKIN
}

enum ToadClothes {
    NONE,
    TURTLENECK_BLUE,
    TURTLENECK_GREY,
    T_SHIRT_ROCKET_GREY,
    T_SHIRT_ROCKET_BLUE,
    T_SHIRT_FLY_GREY,
    T_SHIRT_FLY_BLUE,
    T_SHIRT_FLY_RED,
    T_SHIRT_HEART_BLACK,
    T_SHIRT_HEART_PINK,
    T_SHIRT_RAINBOW,
    T_SHIRT_SKULL,
    HOODIE_GREY,
    HOODIE_PINK,
    HOODIE_LIGHT_BLUE,
    HOODIE_DARK_BLUE,
    HOODIE_WHITE,
    T_SHIRT_CAMO,
    HOODIE_CAMO,
    CONVICT,
    ASTRONAUT,
    FARMER,
    RED_OVERALLS,
    GREEN_OVERALLS,
    ZOMBIE,
    SAMURI,
    SAIAN,
    HAWAIIAN_SHIRT,
    SUIT_BLACK,
    SUIT_RED,
    ROCKSTAR,
    PIRATE,
    ASTRONAUT_SUIT,
    CHICKEN_COSTUME,
    DINOSAUR_COSTUME,
    SMOL,
    STRAW_HAT,
    TRACKSUIT
}

enum ToadMouth {
    SMILE,
    O,
    GASP,
    SMALL_GASP,
    LAUGH,
    LAUGH_TEETH,
    SMILE_BIG,
    TONGUE,
    RAINBOW_VOM,
    PIPE,
    CIGARETTE,
    BLUNT,
    MEH,
    GUM,
    FIRE,
    NONE
}

enum ToadEyes {
    RIGHT_UP,
    RIGHT_DOWN,
    TIRED,
    EYE_ROLL,
    WIDE_UP,
    CONTENTFUL,
    LASERS,
    CROAKED,
    SUSPICIOUS,
    WIDE_DOWN,
    BORED,
    STONED,
    HEARTS,
    WINK,
    VR_HEADSET,
    GLASSES_HEART,
    GLASSES_3D,
    GLASSES_SUN,
    EYE_PATCH_LEFT,
    EYE_PATCH_RIGHT,
    EYE_PATCH_BORED_LEFT,
    EYE_PATCH_BORED_RIGHT,
    EXCITED,
    NONE
}

enum ToadItem {
    NONE,
    LIGHTSABER_RED,
    LIGHTSABER_GREEN,
    LIGHTSABER_BLUE,
    SWORD,
    WAND_LEFT,
    WAND_RIGHT,
    FIRE_SWORD,
    ICE_SWORD,
    AXE_LEFT,
    AXE_RIGHT
}

enum ToadHead {
    NONE,
    CAP_BROWN,
    CAP_BLACK,
    CAP_RED,
    CAP_PINK,
    CAP_MUSHROOM,
    STRAW_HAT,
    SAILOR_HAT,
    PIRATE_HAT,
    WIZARD_PURPLE_HAT,
    WIZARD_BROWN_HAT,
    CAP_KIDS,
    TOP_HAT,
    PARTY_HAT,
    CROWN,
    BRAIN,
    MOHAWK_PURPLE,
    MOHAWK_GREEN,
    MOHAWK_PINK,
    AFRO,
    BACK_CAP_WHITE,
    BACK_CAP_RED,
    BACK_CAP_BLUE,
    BANDANA_PURPLE,
    BANDANA_RED,
    BANDANA_BLUE,
    BEANIE_GREY,
    BEANIE_BLUE,
    BEANIE_YELLOW,
    HALO,
    COOL_CAT_HEAD,
    FIRE
}

enum ToadAccessory {
    NONE,
    FLIES,
    GOLD_CHAIN,
    NECKTIE_RED,
    NECKTIE_BLUE,
    NECKTIE_PINK
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
import "../libraries/ToadTraitConstants.sol";
import "../toadzmetadata/IToadzMetadata.sol";

interface IToadz is IERC721Upgradeable {

    function mint(address _to, ToadTraits calldata _traits) external;

    function adminSafeTransferFrom(address _from, address _to, uint256 _tokenId) external;

    function burn(uint256 _tokenId) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../libraries/ToadTraitConstants.sol";

interface IToadzMetadata {
    function tokenURI(uint256 _tokenId) external view returns(string memory);

    function setMetadataForToad(uint256 _tokenId, ToadTraits calldata _traits) external;
}

// Immutable Traits.
// Do not change.
struct ToadTraits {
    ToadRarity rarity;
    ToadBackground background;
    ToadMushroom mushroom;
    ToadSkin skin;
    ToadClothes clothes;
    ToadMouth mouth;
    ToadEyes eyes;
    ToadItem item;
    ToadHead head;
    ToadAccessory accessory;
}

struct ToadTraitStrings {
    string rarity;
    string background;
    string mushroom;
    string skin;
    string clothes;
    string mouth;
    string eyes;
    string item;
    string head;
    string accessory;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IWorld {

    function ownerForStakedToad(uint256 _tokenId) external view returns(address);

    function locationForStakedToad(uint256 _tokenId) external view returns(Location);
}

enum Location {
    NOT_STAKED,
    WORLD,
    HUNTING_GROUNDS,
    ADVENTURE
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

import "./WorldState.sol";

abstract contract WorldContracts is Initializable, WorldState {

    function __WorldContracts_init() internal initializer {
        WorldState.__WorldState_init();
    }

    function setContracts(
        address _toadzAddress,
        address _huntingGroundsAddress,
        address _adventureAddress)
    external onlyAdminOrOwner
    {
        toadz = IToadz(_toadzAddress);
        huntingGrounds = IHuntingGrounds(_huntingGroundsAddress);
        adventure = IAdventure(_adventureAddress);
    }

    modifier contractsAreSet() {
        require(areContractsSet(), "World: Contracts aren't set");
        _;
    }

    function areContractsSet() public view returns(bool) {
        return address(toadz) != address(0)
            && address(huntingGrounds) != address(0)
            && address(adventure) != address(0);
    }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/structs/EnumerableSetUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/utils/ERC721HolderUpgradeable.sol";

import "../toadz/IToadz.sol";
import "./IWorld.sol";
import "../../shared/AdminableUpgradeable.sol";
import "../huntinggrounds/IHuntingGrounds.sol";
import "../adventure/IAdventure.sol";

abstract contract WorldState is Initializable, IWorld, ERC721HolderUpgradeable, AdminableUpgradeable {

    event ToadLocationChanged(uint256[] _tokenIds, address _owner, Location _newLocation);

    IToadz public toadz;
    IHuntingGrounds public huntingGrounds;
    IAdventure public adventure;

    mapping(uint256 => TokenInfo) internal tokenIdToInfo;

    mapping(address => EnumerableSetUpgradeable.UintSet) internal ownerToStakedTokens;

    function __WorldState_init() internal initializer {
        AdminableUpgradeable.__Adminable_init();
        ERC721HolderUpgradeable.__ERC721Holder_init();
    }
}

// Be careful of changing as this is stored in storage.
struct TokenInfo {
    address owner;
    Location location;
}

{
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• 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"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"},{"indexed":false,"internalType":"address","name":"_owner","type":"address"},{"indexed":false,"internalType":"enum Location","name":"_newLocation","type":"uint8"}],"name":"ToadLocationChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"addAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_addresses","type":"address[]"}],"name":"addAdmins","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"adventure","outputs":[{"internalType":"contract IAdventure","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"areContractsSet","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"huntingGrounds","outputs":[{"internalType":"contract IHuntingGrounds","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"infoForToad","outputs":[{"components":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"enum Location","name":"location","type":"uint8"}],"internalType":"struct TokenInfo","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"isAdmin","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"isToadStaked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"locationForStakedToad","outputs":[{"internalType":"enum Location","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","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":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"ownerForStakedToad","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"removeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_addresses","type":"address[]"}],"name":"removeAdmins","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_toadzAddress","type":"address"},{"internalType":"address","name":"_huntingGroundsAddress","type":"address"},{"internalType":"address","name":"_adventureAddress","type":"address"}],"name":"setContracts","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_shouldPause","type":"bool"}],"name":"setPause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"toadz","outputs":[{"internalType":"contract IToadz","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"toadzStakedForOwner","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":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"transferToadzOutOfWorld","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"},{"internalType":"string","name":"_adventureName","type":"string"},{"internalType":"uint256[][]","name":"_itemInputIds","type":"uint256[][]"}],"name":"transferToadzToAdventure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"transferToadzToHuntingGrounds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"transferToadzToWorld","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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