VNFT

0x57f0b53926dd62f2e26bc40b30140abea474da94

supportsInterface keyboard_arrow_up

    function supportsInterface(bytes4 interfaceId) public view override returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

onERC1155Received keyboard_arrow_up

    function onERC1155Received(address, address, uint256, uint256, bytes memory) public virtual override returns (bytes4) {
        return this.onERC1155Received.selector;
    }

onERC1155BatchReceived keyboard_arrow_up

    function onERC1155BatchReceived(address, address, uint256[] memory, uint256[] memory, bytes memory) public virtual override returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }

owner keyboard_arrow_up

    function owner() public view returns (address) {
        return _owner;
    }

renounceOwnership keyboard_arrow_up

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

transferOwnership keyboard_arrow_up

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

recoverERC20 keyboard_arrow_up

    function recoverERC20(address tokenAddress, uint256 tokenAmount)
        public
        onlyOwner
    {
        IERC20(tokenAddress).transfer(owner(), tokenAmount);
    }

paused keyboard_arrow_up

    function paused() public view returns (bool) {
        return _paused;
    }

balanceOf keyboard_arrow_up

    function balanceOf(address owner) public view override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");

        return _holderTokens[owner].length();
    }

ownerOf keyboard_arrow_up

    function ownerOf(uint256 tokenId) public view override returns (address) {
        return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token");
    }

name keyboard_arrow_up

    function name() public view override returns (string memory) {
        return _name;
    }

symbol keyboard_arrow_up

    function symbol() public view override returns (string memory) {
        return _symbol;
    }

tokenURI keyboard_arrow_up

    function tokenURI(uint256 tokenId) public view override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory _tokenURI = _tokenURIs[tokenId];

        // If there is no base URI, return the token URI.
        if (bytes(_baseURI).length == 0) {
            return _tokenURI;
        }
        // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
        if (bytes(_tokenURI).length > 0) {
            return string(abi.encodePacked(_baseURI, _tokenURI));
        }
        // If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI.
        return string(abi.encodePacked(_baseURI, tokenId.toString()));
    }

baseURI keyboard_arrow_up

    function baseURI() public view returns (string memory) {
        return _baseURI;
    }

tokenOfOwnerByIndex keyboard_arrow_up

    function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) {
        return _holderTokens[owner].at(index);
    }

totalSupply keyboard_arrow_up

    function totalSupply() public view override returns (uint256) {
        // _tokenOwners are indexed by tokenIds, so .length() returns the number of tokenIds
        return _tokenOwners.length();
    }

tokenByIndex keyboard_arrow_up

    function tokenByIndex(uint256 index) public view override returns (uint256) {
        (uint256 tokenId, ) = _tokenOwners.at(index);
        return tokenId;
    }

approve keyboard_arrow_up

    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

getApproved keyboard_arrow_up

    function getApproved(uint256 tokenId) public view override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

setApprovalForAll keyboard_arrow_up

    function setApprovalForAll(address operator, bool approved) public virtual override {
        require(operator != _msgSender(), "ERC721: approve to caller");

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

isApprovedForAll keyboard_arrow_up

    function isApprovedForAll(address owner, address operator) public view override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

transferFrom keyboard_arrow_up

    function transferFrom(address from, address to, uint256 tokenId) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

safeTransferFrom keyboard_arrow_up

    function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

safeTransferFrom keyboard_arrow_up

    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

burn keyboard_arrow_up

    function burn(uint256 tokenId) public virtual {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
        _burn(tokenId);
    }

hasRole keyboard_arrow_up

    function hasRole(bytes32 role, address account) public view returns (bool) {
        return _roles[role].members.contains(account);
    }

getRoleMemberCount keyboard_arrow_up

    function getRoleMemberCount(bytes32 role) public view returns (uint256) {
        return _roles[role].members.length();
    }

getRoleMember keyboard_arrow_up

    function getRoleMember(bytes32 role, uint256 index)
        public
        view
        returns (address)
    {
        return _roles[role].members.at(index);
    }

getRoleAdmin keyboard_arrow_up

    function getRoleAdmin(bytes32 role) public view returns (bytes32) {
        return _roles[role].adminRole;
    }

grantRole keyboard_arrow_up

    function grantRole(bytes32 role, address account) public virtual {
        require(
            hasRole(_roles[role].adminRole, _msgSender()),
            "AccessControl: sender must be an admin to grant"
        );

        _grantRole(role, account);
    }

revokeRole keyboard_arrow_up

    function revokeRole(bytes32 role, address account) public virtual {
        require(
            hasRole(_roles[role].adminRole, _msgSender()),
            "AccessControl: sender must be an admin to revoke"
        );

        _revokeRole(role, account);
    }

renounceRole keyboard_arrow_up

    function renounceRole(bytes32 role, address account) public virtual {
        require(
            account == _msgSender(),
            "AccessControl: can only renounce roles for self"
        );

        _revokeRole(role, account);
    }

mint keyboard_arrow_up

    function mint(address player) public override onlyMinter {
        //pet minted has 3 days until it starves at first
        timeUntilStarving[_tokenIds.current()] = block.timestamp.add(3 days);
        timeVnftBorn[_tokenIds.current()] = block.timestamp;

        vnftDetails[_tokenIds.current()] = VNFTObj(
            address(this),
            _tokenIds.current(),
            721
        );
        super._mint(player, _tokenIds.current());
        _tokenIds.increment();
        emit VnftMinted(msg.sender);
    }

pause keyboard_arrow_up

    function pause() public virtual {
        require(hasRole(PAUSER_ROLE, _msgSender()), "ERC721PresetMinterPauserAutoId: must have pauser role to pause");
        _pause();
    }

unpause keyboard_arrow_up

    function unpause() public virtual {
        require(hasRole(PAUSER_ROLE, _msgSender()), "ERC721PresetMinterPauserAutoId: must have pauser role to unpause");
        _unpause();
    }

contractURI keyboard_arrow_up

    function contractURI() public pure returns (string memory) {
        return "https://gallery.verynifty.io/api";
    }

pauseGame keyboard_arrow_up

    function pauseGame(bool _pause) external onlyOperator {
        gameStopped = _pause;
    }

changeBurnPercentage keyboard_arrow_up

    function changeBurnPercentage(uint256 percentage) external onlyOperator {
        require(percentage <= 100);
        burnPercentage = burnPercentage;
        emit BurnPercentageChanged(burnPercentage);
    }

changeGiveLifePrice keyboard_arrow_up

    function changeGiveLifePrice(uint256 _newPrice) external onlyOperator {
        giveLifePrice = _newPrice * 10**18;
    }

changeMaxDevAllocation keyboard_arrow_up

    function changeMaxDevAllocation(uint256 amount) external onlyOperator {
        maxDevAllocation = amount;
    }

itemExists keyboard_arrow_up

    function itemExists(uint256 itemId) public view returns (bool) {
        if (bytes(itemName[itemId]).length > 0) {
            return true;
        }
    }

isVnftAlive keyboard_arrow_up

    function isVnftAlive(uint256 _nftId) public view returns (bool) {
        uint256 _timeUntilStarving = timeUntilStarving[_nftId];
        if (_timeUntilStarving != 0 && _timeUntilStarving >= block.timestamp) {
            return true;
        }
    }

getVnftScore keyboard_arrow_up

    function getVnftScore(uint256 _nftId) public view returns (uint256) {
        return vnftScore[_nftId];
    }

getItemInfo keyboard_arrow_up

    function getItemInfo(uint256 _itemId)
        public
        view
        returns (
            string memory _name,
            uint256 _price,
            uint256 _points,
            uint256 _timeExtension
        )
    {
        _name = itemName[_itemId];
        _price = itemPrice[_itemId];
        _timeExtension = itemTimeExtension[_itemId];
        _points = itemPoints[_itemId];
    }

getVnftInfo keyboard_arrow_up

    function getVnftInfo(uint256 _nftId)
        public
        view
        returns (
            uint256 _vNFT,
            bool _isAlive,
            uint256 _score,
            uint256 _level,
            uint256 _expectedReward,
            uint256 _timeUntilStarving,
            uint256 _lastTimeMined,
            uint256 _timeVnftBorn,
            address _owner,
            address _token,
            uint256 _tokenId,
            uint256 _fatalityReward
        )
    {
        _vNFT = _nftId;
        _isAlive = this.isVnftAlive(_nftId);
        _score = this.getVnftScore(_nftId);
        _level = this.level(_nftId);
        _expectedReward = this.getRewards(_nftId);
        _timeUntilStarving = timeUntilStarving[_nftId];
        _lastTimeMined = lastTimeMined[_nftId];
        _timeVnftBorn = timeVnftBorn[_nftId];
        _owner = this.ownerOf(_nftId);
        _token = vnftDetails[_nftId].token;
        _tokenId = vnftDetails[_nftId].id;
        _fatalityReward = getFatalityReward(_nftId);
    }

editCurves keyboard_arrow_up

    function editCurves(
        uint256 _la,
        uint256 _lb,
        uint256 _ra,
        uint256 _rb
    ) external onlyOperator {
        la = _la;
        lb = _lb;
        ra = _ra;
        lb = _rb;
    }

level keyboard_arrow_up

    function level(uint256 tokenId) external view returns (uint256) {
        // This is the formula L(x) = 2 * sqrt(x * 2)
        uint256 _score = vnftScore[tokenId].div(100);
        if (_score == 0) {
            return 1;
        }
        uint256 _level = sqrtu(_score.mul(la));
        return (_level.mul(lb));
    }

getRewards keyboard_arrow_up

    function getRewards(uint256 tokenId) external view returns (uint256) {
        // This is the formula to get token rewards R(level)=(level)*6/7+6
        uint256 _level = this.level(tokenId);
        if (_level == 1) {
            return 6 ether;
        }
        _level = _level.mul(1 ether).mul(ra).div(rb);
        return (_level.add(5 ether));
    }

editItem keyboard_arrow_up

    function editItem(
        uint256 _id,
        uint256 _price,
        uint256 _points,
        string calldata _name,
        uint256 _timeExtension
    ) external onlyOperator {
        itemPrice[_id] = _price;
        itemPoints[_id] = _points;
        itemName[_id] = _name;
        itemTimeExtension[_id] = _timeExtension;
    }

claimMiningRewards keyboard_arrow_up

    function claimMiningRewards(uint256 nftId) external notPaused {
        require(isVnftAlive(nftId), "Your vNFT is dead, you can't mine");
        require(
            block.timestamp >= lastTimeMined[nftId].add(1 days) ||
                lastTimeMined[nftId] == 0,
            "Current timestamp is over the limit to claim the tokens"
        );
        require(
            ownerOf(nftId) == msg.sender ||
                careTaker[nftId][ownerOf(nftId)] == msg.sender,
            "You must own the vNFT to claim rewards"
        );

        //reset last start mined so can't remine and cheat
        lastTimeMined[nftId] = block.timestamp;
        uint256 _reward = this.getRewards(nftId);
        muse.mint(msg.sender, _reward);
        emit ClaimedMiningRewards(nftId, msg.sender, _reward);
    }

buyAccesory keyboard_arrow_up

    function buyAccesory(uint256 nftId, uint256 itemId) external notPaused {
        require(itemExists(itemId), "This item doesn't exist");
        uint256 amount = itemPrice[itemId];
        require(
            ownerOf(nftId) == msg.sender ||
                careTaker[nftId][ownerOf(nftId)] == msg.sender,
            "You must own the vNFT or be a care taker to buy items"
        );
        // require(isVnftAlive(nftId), "Your vNFT is dead");
        uint256 amountToBurn = amount.mul(burnPercentage).div(100);

        if (!isVnftAlive(nftId)) {
            vnftScore[nftId] = itemPoints[itemId];
            timeUntilStarving[nftId] = block.timestamp.add(
                itemTimeExtension[itemId]
            );
        } else {
            //recalculate timeUntilStarving.
            timeUntilStarving[nftId] = block.timestamp.add(
                itemTimeExtension[itemId]
            );
            vnftScore[nftId] = vnftScore[nftId].add(itemPoints[itemId]);
        }
        // burn 90% so they go back to community mining and staking, and send 10% to devs

        if (devAllocation <= maxDevAllocation) {
            devAllocation = devAllocation.add(amount.sub(amountToBurn));
            muse.transferFrom(msg.sender, address(this), amount);
            // burn 90% of token, 10% stay for dev and community fund
            muse.burn(amountToBurn);
        } else {
            muse.burnFrom(msg.sender, amount);
        }
        emit VnftConsumed(nftId, msg.sender, itemId);
    }

setBaseURI keyboard_arrow_up

    function setBaseURI(string memory baseURI_) public onlyOperator {
        _setBaseURI(baseURI_);
    }

fatality keyboard_arrow_up

    function fatality(uint256 _deadId, uint256 _tokenId) external notPaused {
        require(
            !isVnftAlive(_deadId),
            "The vNFT has to be starved to claim his points"
        );
        vnftScore[_tokenId] = vnftScore[_tokenId].add(
            (vnftScore[_deadId].mul(60).div(100))
        );
        // delete vnftDetails[_deadId];
        _burn(_deadId);
        emit VnftFatalized(_deadId, msg.sender);
    }

getFatalityReward keyboard_arrow_up

    function getFatalityReward(uint256 _deadId) public view returns (uint256) {
        if (isVnftAlive(_deadId)) {
            return 0;
        } else {
            return (vnftScore[_deadId].mul(60).div(100));
        }
    }

createItem keyboard_arrow_up

    function createItem(
        string calldata name,
        uint256 price,
        uint256 points,
        uint256 timeExtension
    ) external onlyOperator returns (bool) {
        _itemIds.increment();
        uint256 newItemId = _itemIds.current();
        itemName[newItemId] = name;
        itemPrice[newItemId] = price * 10**18;
        itemPoints[newItemId] = points;
        itemTimeExtension[newItemId] = timeExtension;
        emit ItemCreated(newItemId, name, price, points);
    }

addNft keyboard_arrow_up

    function addNft(address _nftToken, uint256 _type) public onlyOperator {
        supportedNfts.push(
            NFTInfo({token: _nftToken, active: true, standard: _type})
        );
    }

supportedNftLength keyboard_arrow_up

    function supportedNftLength() external view returns (uint256) {
        return supportedNfts.length;
    }

updateSupportedNFT keyboard_arrow_up

    function updateSupportedNFT(
        uint256 index,
        bool _active,
        address _address
    ) public onlyOperator {
        supportedNfts[index].active = _active;
        supportedNfts[index].token = _address;
    }

giveLife keyboard_arrow_up

    function giveLife(
        uint256 index,
        uint256 _id,
        uint256 nftType
    ) external notPaused {
        uint256 amountToBurn = giveLifePrice.mul(burnPercentage).div(100);

        if (devAllocation <= maxDevAllocation) {
            devAllocation = devAllocation.add(giveLifePrice.sub(amountToBurn));
            muse.transferFrom(msg.sender, address(this), giveLifePrice);
            // burn 90% of token, 10% stay for dev and community fund
            muse.burn(amountToBurn);
        } else {
            muse.burnFrom(msg.sender, giveLifePrice);
        }

        if (nftType == 721) {
            IERC721(supportedNfts[index].token).transferFrom(
                msg.sender,
                address(this),
                _id
            );
        } else if (nftType == 1155) {
            IERC1155(supportedNfts[index].token).safeTransferFrom(
                msg.sender,
                address(this),
                _id,
                1, //the amount of tokens to transfer which always be 1
                "0x0"
            );
        }

        // mint a vNFT
        vnftDetails[_tokenIds.current()] = VNFTObj(
            supportedNfts[index].token,
            _id,
            nftType
        );

        timeUntilStarving[_tokenIds.current()] = block.timestamp.add(3 days);
        timeVnftBorn[_tokenIds.current()] = block.timestamp;

        super._mint(msg.sender, _tokenIds.current());
        _tokenIds.increment();
        emit LifeGiven(supportedNfts[index].token, _id);
    }

unwrap keyboard_arrow_up

    function unwrap(uint256 _vnftId) external {
        require(isVnftAlive(_vnftId), "Your vNFT is dead, you can't unwrap it");
        transferFrom(msg.sender, address(this), _vnftId);
        VNFTObj memory details = vnftDetails[_vnftId];
        timeUntilStarving[_vnftId] = 1;
        vnftScore[_vnftId] = 0;
        emit Unwrapped(_vnftId);
        _withdraw(details.id, details.token, msg.sender, details.standard);
    }

withdraw keyboard_arrow_up

    function withdraw(
        uint256 _id,
        address _contractAddr,
        address _to,
        uint256 _type
    ) external onlyOperator {
        _withdraw(_id, _contractAddr, _to, _type);
    }

addCareTaker keyboard_arrow_up

    function addCareTaker(uint256 _tokenId, address _careTaker) external {
        require(
            hasRole(OPERATOR_ROLE, _msgSender()) ||
                ownerOf(_tokenId) == msg.sender,
            "Roles: caller does not have the OPERATOR role"
        );
        careTaker[_tokenId][msg.sender] = _careTaker;
        emit CareTakerAdded(_tokenId, _careTaker);
    }

clearCareTaker keyboard_arrow_up

    function clearCareTaker(uint256 _tokenId) external {
        require(
            hasRole(OPERATOR_ROLE, _msgSender()) ||
                ownerOf(_tokenId) == msg.sender,
            "Roles: caller does not have the OPERATOR role"
        );
        delete careTaker[_tokenId][msg.sender];
        emit CareTakerRemoved(_tokenId);
    }