Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/* solhint-disable not-rely-on-time, func-order */
pragma solidity 0.6.5;

import "../common/Libraries/SafeMathWithRequire.sol";
import "./LandToken.sol";
import "../common/Interfaces/ERC1155.sol";
import "../common/Interfaces/ERC20.sol";
import "../common/BaseWithStorage/MetaTransactionReceiver.sol";
import "../ReferralValidator/ReferralValidator.sol";


/// @title Estate Sale contract with referral
/// @notice This contract manages the sale of our lands as Estates
contract EstateSaleWithFee is MetaTransactionReceiver, ReferralValidator {
    using SafeMathWithRequire for uint256;

    event LandQuadPurchased(
        address indexed buyer,
        address indexed to,
        uint256 indexed topCornerId,
        uint256 size,
        uint256 price,
        address token,
        uint256 amountPaid
    );

    /// @notice set the wallet receiving the proceeds
    /// @param newWallet address of the new receiving wallet
    function setReceivingWallet(address payable newWallet) external {
        require(newWallet != address(0), "ZERO_ADDRESS");
        require(msg.sender == _admin, "NOT_AUTHORIZED");
        _wallet = newWallet;
    }

    function rebalanceSand(uint256 newMultiplier) external {
        require(msg.sender == _admin, "NOT_AUTHORIZED");
        _multiplier = newMultiplier;
    }

    function getSandMultiplier() external view returns (uint256) {
        return _multiplier;
    }

    /// @notice buy Land with SAND using the merkle proof associated with it
    /// @param buyer address that perform the payment
    /// @param to address that will own the purchased Land
    /// @param reserved the reserved address (if any)
    /// @param x x coordinate of the Land
    /// @param y y coordinate of the Land
    /// @param size size of the pack of Land to purchase
    /// @param priceInSand price in SAND to purchase that Land
    /// @param proof merkleProof for that particular Land
    function buyLandWithSand(
        address buyer,
        address to,
        address reserved,
        uint256 x,
        uint256 y,
        uint256 size,
        uint256 priceInSand,
        uint256 adjustedPriceInSand,
        bytes32 salt,
        uint256[] calldata assetIds,
        bytes32[] calldata proof,
        bytes calldata referral
    ) external {
        _checkPrices(priceInSand, adjustedPriceInSand);
        _checkValidity(buyer, reserved, x, y, size, priceInSand, salt, assetIds, proof);
        _handleFeeAndReferral(buyer, adjustedPriceInSand, referral);
        _mint(buyer, to, x, y, size, adjustedPriceInSand, address(_sand), adjustedPriceInSand);
        _sendAssets(to, assetIds);
    }

    /// @notice Gets the expiry time for the current sale
    /// @return The expiry time, as a unix epoch
    function getExpiryTime() external view returns (uint256) {
        return _expiryTime;
    }

    /// @notice Gets the Merkle root associated with the current sale
    /// @return The Merkle root, as a bytes32 hash
    function getMerkleRoot() external view returns (bytes32) {
        return _merkleRoot;
    }

    /// @notice enable Admin to withdraw remaining assets from EstateSaleWithFee contract
    /// @param to intended recipient of the asset tokens
    /// @param assetIds the assetIds to be transferred
    /// @param values the quantities of the assetIds to be transferred
    function withdrawAssets(
        address to,
        uint256[] calldata assetIds,
        uint256[] calldata values
    ) external {
        require(msg.sender == _admin, "NOT_AUTHORIZED");
        // require(block.timestamp > _expiryTime, "SALE_NOT_OVER"); // removed to recover in case of misconfigured sales
        _asset.safeBatchTransferFrom(address(this), to, assetIds, values, "");
    }

    function onERC1155Received(
        address, /*operator*/
        address, /*from*/
        uint256, /*id*/
        uint256, /*value*/
        bytes calldata /*data*/
    ) external pure returns (bytes4) {
        return 0xf23a6e61;
    }

    function onERC1155BatchReceived(
        address, /*operator*/
        address, /*from*/
        uint256[] calldata, /*ids*/
        uint256[] calldata, /*values*/
        bytes calldata /*data*/
    ) external pure returns (bytes4) {
        return 0xbc197c81;
    }

    function _sendAssets(address to, uint256[] memory assetIds) internal {
        uint256[] memory values = new uint256[](assetIds.length);
        for (uint256 i = 0; i < assetIds.length; i++) {
            values[i] = 1;
        }
        _asset.safeBatchTransferFrom(address(this), to, assetIds, values, "");
    }

    function _checkPrices(uint256 priceInSand, uint256 adjustedPriceInSand) internal view {
        require(adjustedPriceInSand == priceInSand.mul(_multiplier).div(MULTIPLIER_DECIMALS), "INVALID_PRICE");
    }

    function _checkValidity(
        address buyer,
        address reserved,
        uint256 x,
        uint256 y,
        uint256 size,
        uint256 price,
        bytes32 salt,
        uint256[] memory assetIds,
        bytes32[] memory proof
    ) internal view {
        /* solium-disable-next-line security/no-block-members */
        require(block.timestamp < _expiryTime, "SALE_IS_OVER");
        require(buyer == msg.sender || _metaTransactionContracts[msg.sender], "NOT_AUTHORIZED");
        require(reserved == address(0) || reserved == buyer, "RESERVED_LAND");
        bytes32 leaf = _generateLandHash(x, y, size, price, reserved, salt, assetIds);

        require(_verify(proof, leaf), "INVALID_LAND");
    }

    function _mint(
        address buyer,
        address to,
        uint256 x,
        uint256 y,
        uint256 size,
        uint256 price,
        address token,
        uint256 tokenAmount
    ) internal {
        if (size == 1 || _estate == address(0)) {
            _land.mintQuad(to, size, x, y, "");
        } else {
            _land.mintQuad(_estate, size, x, y, abi.encode(to));
        }
        emit LandQuadPurchased(buyer, to, x + (y * GRID_SIZE), size, price, token, tokenAmount);
    }

    function _generateLandHash(
        uint256 x,
        uint256 y,
        uint256 size,
        uint256 price,
        address reserved,
        bytes32 salt,
        uint256[] memory assetIds
    ) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked(x, y, size, price, reserved, salt, assetIds));
    }

    function _verify(bytes32[] memory proof, bytes32 leaf) internal view returns (bool) {
        bytes32 computedHash = leaf;

        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];

            if (computedHash < proofElement) {
                computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
            } else {
                computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
            }
        }

        return computedHash == _merkleRoot;
    }

    function _handleFeeAndReferral(
        address buyer,
        uint256 priceInSand,
        bytes memory referral
    ) internal {
        // send 5% fee to a specially configured instance of FeeDistributor.sol
        uint256 remainingAmountInSand = _handleSandFee(buyer, priceInSand);

        // calculate referral based on 95% of original priceInSand
        handleReferralWithERC20(buyer, remainingAmountInSand, referral, _wallet, address(_sand));
    }

    function _handleSandFee(address buyer, uint256 priceInSand) internal returns (uint256) {
        uint256 feeAmountInSand = priceInSand.mul(FEE).div(100);
        require(_sand.transferFrom(buyer, address(_feeDistributor), feeAmountInSand), "FEE_TRANSFER_FAILED");
        return priceInSand.sub(feeAmountInSand);
    }

    uint256 internal constant GRID_SIZE = 408; // 408 is the size of the Land

    ERC1155 internal immutable _asset;
    LandToken internal immutable _land;
    ERC20 internal immutable _sand;
    address internal immutable _estate;
    address internal immutable _feeDistributor;

    address payable internal _wallet;
    uint256 internal immutable _expiryTime;
    bytes32 internal immutable _merkleRoot;

    uint256 private constant FEE = 5; // percentage of land sale price to be diverted to a specially configured instance of FeeDistributor, shown as an integer

    uint256 private _multiplier = 1000; // multiplier used for rebalancing SAND values, 3 decimal places
    uint256 private constant MULTIPLIER_DECIMALS = 1000;

    constructor(
        address landAddress,
        address sandContractAddress,
        address initialMetaTx,
        address admin,
        address payable initialWalletAddress,
        bytes32 merkleRoot,
        uint256 expiryTime,
        address initialSigningWallet,
        uint256 initialMaxCommissionRate,
        address estate,
        address asset,
        address feeDistributor
    ) public ReferralValidator(initialSigningWallet, initialMaxCommissionRate) {
        _land = LandToken(landAddress);
        _sand = ERC20(sandContractAddress);
        _setMetaTransactionProcessor(initialMetaTx, true);
        _wallet = initialWalletAddress;
        _merkleRoot = merkleRoot;
        _expiryTime = expiryTime;
        _admin = admin;
        _estate = estate;
        _asset = ERC1155(asset);
        _feeDistributor = feeDistributor;
    }
}

pragma solidity 0.6.5;


interface LandToken {
    function mintQuad(
        address to,
        uint256 size,
        uint256 x,
        uint256 y,
        bytes calldata data
    ) external;
}

/* solhint-disable not-rely-on-time, func-order */
pragma solidity 0.6.5;

import "../common/Libraries/SigUtil.sol";
import "../common/Libraries/SafeMathWithRequire.sol";
import "../common/Interfaces/ERC20.sol";
import "../common/BaseWithStorage/Admin.sol";


/// @dev This contract verifies if a referral is valid
contract ReferralValidator is Admin {
    address private _signingWallet;
    uint256 private _maxCommissionRate;

    mapping(address => uint256) private _previousSigningWallets;
    uint256 private _previousSigningDelay = 60 * 60 * 24 * 10;

    event ReferralUsed(
        address indexed referrer,
        address indexed referee,
        address indexed token,
        uint256 amount,
        uint256 commission,
        uint256 commissionRate
    );

    constructor(address initialSigningWallet, uint256 initialMaxCommissionRate) public {
        _signingWallet = initialSigningWallet;
        _maxCommissionRate = initialMaxCommissionRate;
    }

    /**
     * @dev Update the signing wallet
     * @param newSigningWallet The new address of the signing wallet
     */
    function updateSigningWallet(address newSigningWallet) external {
        require(_admin == msg.sender, "Sender not admin");
        _previousSigningWallets[_signingWallet] = now + _previousSigningDelay;
        _signingWallet = newSigningWallet;
    }

    /**
     * @dev signing wallet authorized for referral
     * @return the address of the signing wallet
     */
    function getSigningWallet() external view returns (address) {
        return _signingWallet;
    }

    /**
     * @notice the max commision rate
     * @return the maximum commision rate that a referral can give
     */
    function getMaxCommisionRate() external view returns (uint256) {
        return _maxCommissionRate;
    }

    /**
     * @dev Update the maximum commission rate
     * @param newMaxCommissionRate The new maximum commission rate
     */
    function updateMaxCommissionRate(uint256 newMaxCommissionRate) external {
        require(_admin == msg.sender, "Sender not admin");
        _maxCommissionRate = newMaxCommissionRate;
    }

    function handleReferralWithETH(
        uint256 amount,
        bytes memory referral,
        address payable destination
    ) internal {
        uint256 amountForDestination = amount;

        if (referral.length > 0) {
            (bytes memory signature, address referrer, address referee, uint256 expiryTime, uint256 commissionRate) = decodeReferral(referral);

            uint256 commission = 0;

            if (isReferralValid(signature, referrer, referee, expiryTime, commissionRate)) {
                commission = SafeMathWithRequire.div(SafeMathWithRequire.mul(amount, commissionRate), 10000);

                emit ReferralUsed(referrer, referee, address(0), amount, commission, commissionRate);
                amountForDestination = SafeMathWithRequire.sub(amountForDestination, commission);
            }

            if (commission > 0) {
                payable(referrer).transfer(commission);
            }
        }

        destination.transfer(amountForDestination);
    }

    function handleReferralWithERC20(
        address buyer,
        uint256 amount,
        bytes memory referral,
        address payable destination,
        address tokenAddress
    ) internal {
        ERC20 token = ERC20(tokenAddress);
        uint256 amountForDestination = amount;

        if (referral.length > 0) {
            (bytes memory signature, address referrer, address referee, uint256 expiryTime, uint256 commissionRate) = decodeReferral(referral);

            uint256 commission = 0;

            if (isReferralValid(signature, referrer, referee, expiryTime, commissionRate)) {
                commission = SafeMathWithRequire.div(SafeMathWithRequire.mul(amount, commissionRate), 10000);

                emit ReferralUsed(referrer, referee, tokenAddress, amount, commission, commissionRate);
                amountForDestination = SafeMathWithRequire.sub(amountForDestination, commission);
            }

            if (commission > 0) {
                require(token.transferFrom(buyer, referrer, commission), "commision transfer failed");
            }
        }

        require(token.transferFrom(buyer, destination, amountForDestination), "payment transfer failed");
    }

    /**
     * @notice Check if a referral is valid
     * @param signature The signature to check (signed referral)
     * @param referrer The address of the referrer
     * @param referee The address of the referee
     * @param expiryTime The expiry time of the referral
     * @param commissionRate The commissionRate of the referral
     * @return True if the referral is valid
     */
    function isReferralValid(
        bytes memory signature,
        address referrer,
        address referee,
        uint256 expiryTime,
        uint256 commissionRate
    ) public view returns (bool) {
        if (commissionRate > _maxCommissionRate || referrer == referee || now > expiryTime) {
            return false;
        }

        bytes32 hashedData = keccak256(abi.encodePacked(referrer, referee, expiryTime, commissionRate));

        address signer = SigUtil.recover(keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hashedData)), signature);

        if (_previousSigningWallets[signer] >= now) {
            return true;
        }

        return _signingWallet == signer;
    }

    function decodeReferral(bytes memory referral)
        public
        pure
        returns (
            bytes memory,
            address,
            address,
            uint256,
            uint256
        )
    {
        (bytes memory signature, address referrer, address referee, uint256 expiryTime, uint256 commissionRate) = abi.decode(
            referral,
            (bytes, address, address, uint256, uint256)
        );

        return (signature, referrer, referee, expiryTime, commissionRate);
    }
}

pragma solidity 0.6.5;


contract Admin {
    address internal _admin;

    /// @dev emitted when the contract administrator is changed.
    /// @param oldAdmin address of the previous administrator.
    /// @param newAdmin address of the new administrator.
    event AdminChanged(address oldAdmin, address newAdmin);

    /// @dev gives the current administrator of this contract.
    /// @return the current administrator of this contract.
    function getAdmin() external view returns (address) {
        return _admin;
    }

    /// @dev change the administrator to be `newAdmin`.
    /// @param newAdmin address of the new administrator.
    function changeAdmin(address newAdmin) external {
        require(msg.sender == _admin, "only admin can change admin");
        emit AdminChanged(_admin, newAdmin);
        _admin = newAdmin;
    }

    modifier onlyAdmin() {
        require(msg.sender == _admin, "only admin allowed");
        _;
    }
}

pragma solidity 0.6.5;

import "./Admin.sol";


contract MetaTransactionReceiver is Admin {
    mapping(address => bool) internal _metaTransactionContracts;

    /// @dev emiited when a meta transaction processor is enabled/disabled
    /// @param metaTransactionProcessor address that will be given/removed metaTransactionProcessor rights.
    /// @param enabled set whether the metaTransactionProcessor is enabled or disabled.
    event MetaTransactionProcessor(address metaTransactionProcessor, bool enabled);

    /// @dev Enable or disable the ability of `metaTransactionProcessor` to perform meta-tx (metaTransactionProcessor rights).
    /// @param metaTransactionProcessor address that will be given/removed metaTransactionProcessor rights.
    /// @param enabled set whether the metaTransactionProcessor is enabled or disabled.
    function setMetaTransactionProcessor(address metaTransactionProcessor, bool enabled) public {
        require(msg.sender == _admin, "only admin can setup metaTransactionProcessors");
        _setMetaTransactionProcessor(metaTransactionProcessor, enabled);
    }

    function _setMetaTransactionProcessor(address metaTransactionProcessor, bool enabled) internal {
        _metaTransactionContracts[metaTransactionProcessor] = enabled;
        emit MetaTransactionProcessor(metaTransactionProcessor, enabled);
    }

    /// @dev check whether address `who` is given meta-transaction execution rights.
    /// @param who The address to query.
    /// @return whether the address has meta-transaction execution rights.
    function isMetaTransactionProcessor(address who) external view returns (bool) {
        return _metaTransactionContracts[who];
    }
}

pragma solidity 0.6.5;


/**
    @title ERC-1155 Multi Token Standard
    @dev See https://eips.ethereum.org/EIPS/eip-1155
    Note: The ERC-165 identifier for this interface is 0xd9b67a26.
 */
interface ERC1155 {
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    event TransferBatch(address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values);

    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    event URI(string value, uint256 indexed id);

    /**
        @notice Transfers `value` amount of an `id` from  `from` to `to`  (with safety call).
        @dev Caller must be approved to manage the tokens being transferred out of the `from` account (see "Approval" section of the standard).
        MUST revert if `to` is the zero address.
        MUST revert if balance of holder for token `id` is lower than the `value` sent.
        MUST revert on any other error.
        MUST emit the `TransferSingle` event to reflect the balance change (see "Safe Transfer Rules" section of the standard).
        After the above conditions are met, this function MUST check if `to` is a smart contract (e.g. code size > 0). If so, it MUST call `onERC1155Received` on `to` and act appropriately (see "Safe Transfer Rules" section of the standard).
        @param from    Source address
        @param to      Target address
        @param id      ID of the token type
        @param value   Transfer amount
        @param data    Additional data with no specified format, MUST be sent unaltered in call to `onERC1155Received` on `to`
    */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external;

    /**
        @notice Transfers `values` amount(s) of `ids` from the `from` address to the `to` address specified (with safety call).
        @dev Caller must be approved to manage the tokens being transferred out of the `from` account (see "Approval" section of the standard).
        MUST revert if `to` is the zero address.
        MUST revert if length of `ids` is not the same as length of `values`.
        MUST revert if any of the balance(s) of the holder(s) for token(s) in `ids` is lower than the respective amount(s) in `values` sent to the recipient.
        MUST revert on any other error.
        MUST emit `TransferSingle` or `TransferBatch` event(s) such that all the balance changes are reflected (see "Safe Transfer Rules" section of the standard).
        Balance changes and events MUST follow the ordering of the arrays (_ids[0]/_values[0] before _ids[1]/_values[1], etc).
        After the above conditions for the transfer(s) in the batch are met, this function MUST check if `to` is a smart contract (e.g. code size > 0). If so, it MUST call the relevant `ERC1155TokenReceiver` hook(s) on `to` and act appropriately (see "Safe Transfer Rules" section of the standard).
        @param from    Source address
        @param to      Target address
        @param ids     IDs of each token type (order and length must match _values array)
        @param values  Transfer amounts per token type (order and length must match _ids array)
        @param data    Additional data with no specified format, MUST be sent unaltered in call to the `ERC1155TokenReceiver` hook(s) on `to`
    */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external;

    /**
        @notice Get the balance of an account's tokens.
        @param owner  The address of the token holder
        @param id     ID of the token
        @return        The _owner's balance of the token type requested
     */
    function balanceOf(address owner, uint256 id) external view returns (uint256);

    /**
        @notice Get the balance of multiple account/token pairs
        @param owners The addresses of the token holders
        @param ids    ID of the tokens
        @return        The _owner's balance of the token types requested (i.e. balance for each (owner, id) pair)
     */
    function balanceOfBatch(address[] calldata owners, uint256[] calldata ids) external view returns (uint256[] memory);

    /**
        @notice Enable or disable approval for a third party ("operator") to manage all of the caller's tokens.
        @dev MUST emit the ApprovalForAll event on success.
        @param operator  Address to add to the set of authorized operators
        @param approved  True if the operator is approved, false to revoke approval
    */
    function setApprovalForAll(address operator, bool approved) external;

    /**
        @notice Queries the approval status of an operator for a given owner.
        @param owner     The owner of the tokens
        @param operator  Address of authorized operator
        @return           True if the operator is approved, false if not
    */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

pragma solidity 0.6.5;


/// @dev see https://eips.ethereum.org/EIPS/eip-20
interface ERC20 {
    /// @notice emitted when tokens are transfered from one address to another.
    /// @param from address from which the token are transfered from (zero means tokens are minted).
    /// @param to destination address which the token are transfered to (zero means tokens are burnt).
    /// @param value amount of tokens transferred.
    event Transfer(address indexed from, address indexed to, uint256 value);

    /// @notice emitted when owner grant transfer rights to another address
    /// @param owner address allowing its token to be transferred.
    /// @param spender address allowed to spend on behalf of `owner`
    /// @param value amount of tokens allowed.
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /// @notice return the current total amount of tokens owned by all holders.
    /// @return supply total number of tokens held.
    function totalSupply() external view returns (uint256 supply);

    /// @notice return the number of tokens held by a particular address.
    /// @param who address being queried.
    /// @return balance number of token held by that address.
    function balanceOf(address who) external view returns (uint256 balance);

    /// @notice transfer tokens to a specific address.
    /// @param to destination address receiving the tokens.
    /// @param value number of tokens to transfer.
    /// @return success whether the transfer succeeded.
    function transfer(address to, uint256 value) external returns (bool success);

    /// @notice transfer tokens from one address to another.
    /// @param from address tokens will be sent from.
    /// @param to destination address receiving the tokens.
    /// @param value number of tokens to transfer.
    /// @return success whether the transfer succeeded.
    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool success);

    /// @notice approve an address to spend on your behalf.
    /// @param spender address entitled to transfer on your behalf.
    /// @param value amount allowed to be transfered.
    /// @param success whether the approval succeeded.
    function approve(address spender, uint256 value) external returns (bool success);

    /// @notice return the current allowance for a particular owner/spender pair.
    /// @param owner address allowing spender.
    /// @param spender address allowed to spend.
    /// @return amount number of tokens `spender` can spend on behalf of `owner`.
    function allowance(address owner, address spender) external view returns (uint256 amount);
}

pragma solidity 0.6.5;


/**
 * @title SafeMath
 * @dev Math operations with safety checks that revert
 */
library SafeMathWithRequire {
    using SafeMathWithRequire for uint256;

    uint256 constant DECIMALS_18 = 1000000000000000000;
    uint256 constant DECIMALS_12 = 1000000000000;
    uint256 constant DECIMALS_9 = 1000000000;
    uint256 constant DECIMALS_6 = 1000000;

    /**
     * @dev Multiplies two numbers, throws on overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
        // Gas optimization: this is cheaper than asserting 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
        if (a == 0) {
            return 0;
        }

        c = a * b;
        require(c / a == b, "overflow");
        return c;
    }

    /**
     * @dev Integer division of two numbers, truncating the quotient.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b != 0, "divbyzero");
        // uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold
        return a / b;
    }

    /**
     * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "undeflow");
        return a - b;
    }

    /**
     * @dev Adds two numbers, throws on overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
        c = a + b;
        require(c >= a, "overflow");
        return c;
    }

    function sqrt6(uint256 a) internal pure returns (uint256 c) {
        a = a.mul(DECIMALS_12);
        uint256 tmp = a.add(1) / 2;
        c = a;
        // tmp cannot be zero unless a = 0 which skip the loop
        while (tmp < c) {
            c = tmp;
            tmp = ((a / tmp) + tmp) / 2;
        }
    }

    function sqrt3(uint256 a) internal pure returns (uint256 c) {
        a = a.mul(DECIMALS_6);
        uint256 tmp = a.add(1) / 2;
        c = a;
        // tmp cannot be zero unless a = 0 which skip the loop
        while (tmp < c) {
            c = tmp;
            tmp = ((a / tmp) + tmp) / 2;
        }
    }

    function cbrt6(uint256 a) internal pure returns (uint256 c) {
        a = a.mul(DECIMALS_18);
        uint256 tmp = a.add(2) / 3;
        c = a;
        // tmp cannot be zero unless a = 0 which skip the loop
        while (tmp < c) {
            c = tmp;
            uint256 tmpSquare = tmp**2;
            require(tmpSquare > tmp, "overflow");
            tmp = ((a / tmpSquare) + (tmp * 2)) / 3;
        }
        return c;
    }

    function cbrt3(uint256 a) internal pure returns (uint256 c) {
        a = a.mul(DECIMALS_9);
        uint256 tmp = a.add(2) / 3;
        c = a;
        // tmp cannot be zero unless a = 0 which skip the loop
        while (tmp < c) {
            c = tmp;
            uint256 tmpSquare = tmp**2;
            require(tmpSquare > tmp, "overflow");
            tmp = ((a / tmpSquare) + (tmp * 2)) / 3;
        }
        return c;
    }

    // TODO test
    function rt6_3(uint256 a) internal pure returns (uint256 c) {
        a = a.mul(DECIMALS_18);
        uint256 tmp = a.add(5) / 6;
        c = a;
        // tmp cannot be zero unless a = 0 which skip the loop
        while (tmp < c) {
            c = tmp;
            uint256 tmpFive = tmp**5;
            require(tmpFive > tmp, "overflow");
            tmp = ((a / tmpFive) + (tmp * 5)) / 6;
        }
    }
}

pragma solidity 0.6.5;


library SigUtil {
    function recover(bytes32 hash, bytes memory sig) internal pure returns (address recovered) {
        require(sig.length == 65);

        bytes32 r;
        bytes32 s;
        uint8 v;
        assembly {
            r := mload(add(sig, 32))
            s := mload(add(sig, 64))
            v := byte(0, mload(add(sig, 96)))
        }

        // Version of signature should be 27 or 28, but 0 and 1 are also possible versions
        if (v < 27) {
            v += 27;
        }
        require(v == 27 || v == 28);

        recovered = ecrecover(hash, v, r, s);
        require(recovered != address(0));
    }

    function recoverWithZeroOnFailure(bytes32 hash, bytes memory sig) internal pure returns (address) {
        if (sig.length != 65) {
            return (address(0));
        }

        bytes32 r;
        bytes32 s;
        uint8 v;
        assembly {
            r := mload(add(sig, 32))
            s := mload(add(sig, 64))
            v := byte(0, mload(add(sig, 96)))
        }

        // Version of signature should be 27 or 28, but 0 and 1 are also possible versions
        if (v < 27) {
            v += 27;
        }

        if (v != 27 && v != 28) {
            return (address(0));
        } else {
            return ecrecover(hash, v, r, s);
        }
    }

    // Builds a prefixed hash to mimic the behavior of eth_sign.
    function prefixed(bytes32 hash) internal pure returns (bytes memory) {
        return abi.encodePacked("\x19Ethereum Signed Message:\n32", hash);
    }
}

{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"landAddress","type":"address"},{"internalType":"address","name":"sandContractAddress","type":"address"},{"internalType":"address","name":"initialMetaTx","type":"address"},{"internalType":"address","name":"admin","type":"address"},{"internalType":"address payable","name":"initialWalletAddress","type":"address"},{"internalType":"bytes32","name":"merkleRoot","type":"bytes32"},{"internalType":"uint256","name":"expiryTime","type":"uint256"},{"internalType":"address","name":"initialSigningWallet","type":"address"},{"internalType":"uint256","name":"initialMaxCommissionRate","type":"uint256"},{"internalType":"address","name":"estate","type":"address"},{"internalType":"address","name":"asset","type":"address"},{"internalType":"address","name":"feeDistributor","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"topCornerId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"size","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"},{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountPaid","type":"uint256"}],"name":"LandQuadPurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"metaTransactionProcessor","type":"address"},{"indexed":false,"internalType":"bool","name":"enabled","type":"bool"}],"name":"MetaTransactionProcessor","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"referrer","type":"address"},{"indexed":true,"internalType":"address","name":"referee","type":"address"},{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"commission","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"commissionRate","type":"uint256"}],"name":"ReferralUsed","type":"event"},{"inputs":[{"internalType":"address","name":"buyer","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"address","name":"reserved","type":"address"},{"internalType":"uint256","name":"x","type":"uint256"},{"internalType":"uint256","name":"y","type":"uint256"},{"internalType":"uint256","name":"size","type":"uint256"},{"internalType":"uint256","name":"priceInSand","type":"uint256"},{"internalType":"uint256","name":"adjustedPriceInSand","type":"uint256"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"assetIds","type":"uint256[]"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"},{"internalType":"bytes","name":"referral","type":"bytes"}],"name":"buyLandWithSand","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"referral","type":"bytes"}],"name":"decodeReferral","outputs":[{"internalType":"bytes","name":"","type":"bytes"},{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getExpiryTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMaxCommisionRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMerkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getSandMultiplier","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getSigningWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"isMetaTransactionProcessor","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"address","name":"referrer","type":"address"},{"internalType":"address","name":"referee","type":"address"},{"internalType":"uint256","name":"expiryTime","type":"uint256"},{"internalType":"uint256","name":"commissionRate","type":"uint256"}],"name":"isReferralValid","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256[]","name":"","type":"uint256[]"},{"internalType":"uint256[]","name":"","type":"uint256[]"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC1155BatchReceived","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC1155Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"newMultiplier","type":"uint256"}],"name":"rebalanceSand","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"metaTransactionProcessor","type":"address"},{"internalType":"bool","name":"enabled","type":"bool"}],"name":"setMetaTransactionProcessor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"newWallet","type":"address"}],"name":"setReceivingWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newMaxCommissionRate","type":"uint256"}],"name":"updateMaxCommissionRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newSigningWallet","type":"address"}],"name":"updateSigningWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"assetIds","type":"uint256[]"},{"internalType":"uint256[]","name":"values","type":"uint256[]"}],"name":"withdrawAssets","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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