Contract 0x2639779d6ca9091483a2a7b9a1fe77ab83b90281 3

Contract Overview

Balance:
0 FTM

FTM Value:
$0.00

Token:
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xea2fee852cd02bd7ca0ece242146cfa24ee3c79bd02b7373317feb6411246b81Deposit236347262021-12-01 3:16:553 mins ago0xd89cdcba2a2f85fb3b185253ca29c6127eb7cef5 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.022938065514
0xc8f5671898524806522928218180ca3fb3e129886c1d3361dcb83a98244ad9edDeposit236346352021-12-01 3:15:194 mins ago0xd89cdcba2a2f85fb3b185253ca29c6127eb7cef5 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.015340944976
0x59b5e57082c761f061ec6200cbf0abe9d14ff387b61c005ec62514b9384954fcDeposit236346192021-12-01 3:15:015 mins ago0xd89cdcba2a2f85fb3b185253ca29c6127eb7cef5 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016785335886
0xf021a73c3b0b8b7519bcb1b92163e84ebc778fa3f7ebcf16018ec663e5f7fb98Deposit236346142021-12-01 3:14:505 mins ago0x646f6b0a30413d36c63d79cead97c1bd08025bd9 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.01934273
0x82eb89c738319f4fbfc51dcce3fe2727afff52eb60b561f6c2b5f15eb599871eDeposit236345992021-12-01 3:14:375 mins ago0xd89cdcba2a2f85fb3b185253ca29c6127eb7cef5 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016785335886
0xc7e29ba225c4762a4adeef22a4cf4de341c83183f428cd9e282805f236291d4fDeposit236345782021-12-01 3:14:135 mins ago0xd89cdcba2a2f85fb3b185253ca29c6127eb7cef5 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016785335886
0x3d672d98e0ef91be2bf6f839b6d420cd452a2c7bf05f5655553830c7a49a8d40Deposit236345662021-12-01 3:13:586 mins ago0xd89cdcba2a2f85fb3b185253ca29c6127eb7cef5 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016785335886
0xdbd213369184b739ffdd60663a479d0a61460884dead671949dee18df13fd4c6Deposit236345562021-12-01 3:13:496 mins ago0x35e39b05ad4080a18a893d2b2737060ee313d80a IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.019061491871
0x984b2e493b5319d2186da6ebb1602c5f04939dd284e1506da25597028ef24e0eDeposit236345362021-12-01 3:13:256 mins ago0xa7143609af1de44cc0e4631cb80b5a022d93ed5d IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.025369996392
0xb458e849a05458049cc784b6f28af6c49a8918167cf5b72bda167e6cafb63147Withdraw236345112021-12-01 3:12:587 mins ago0x6b61b957201ba22f2be09f8dfe34b7e4f46b44f3 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.02147773932
0xdd6929459ce991caa58c5d8ecb8747a1dc598c9f61d230cd38ef79456c55cae6Deposit236345102021-12-01 3:12:547 mins ago0xa7143609af1de44cc0e4631cb80b5a022d93ed5d IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.01723685862
0xe353fb32c5d202324e89847461e5b66b5a2b744f0051c818ddc4a3a692f2de36Deposit236345002021-12-01 3:12:457 mins ago0x646f6b0a30413d36c63d79cead97c1bd08025bd9 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.01472284
0xd931ecd45a78f9b92745ad90a322177a4131da4bb7df4d05c0be320ab715b4edDeposit236344892021-12-01 3:12:367 mins ago0xa7143609af1de44cc0e4631cb80b5a022d93ed5d IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.017235313222
0x351509658af42921a390fc6b9ea09499b600b864f5bcd4f3072c82133da862c5Deposit236344862021-12-01 3:12:337 mins ago0x4e609a968abeaaf866fde46a400847a9462f5931 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.017499347583
0xff222dce844cc89922b6e447dbca2a7c4803e82952dea9707bf8e968dec9b12cDeposit236344842021-12-01 3:12:317 mins ago0x4e609a968abeaaf866fde46a400847a9462f5931 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.017499347583
0xff7de948795958d0c96232c8581d92b56287f137d5f12b5db484b69f37c9e621Deposit236344842021-12-01 3:12:317 mins ago0x4e609a968abeaaf866fde46a400847a9462f5931 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.017499347583
0xae44e70a5f73dc0c363faa6d41b65a282c4ee6a6151d4963e7a94119be98ef08Deposit236344842021-12-01 3:12:317 mins ago0x4e609a968abeaaf866fde46a400847a9462f5931 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.019235215383
0x73d1dea099c2c23e9d0b589f8b6ae7dcec5e8ac5878bc128167c9c426194b8c3Deposit236344812021-12-01 3:12:247 mins ago0xa7143609af1de44cc0e4631cb80b5a022d93ed5d IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.01926519402
0xc4ee19cd13a4c0eba017b9901067a585aab8cdc0be14e11c65ebfc0e049abbf1Deposit236343782021-12-01 3:10:349 mins ago0x4c83a51f48708d2527b194a821a74924d8b6738e IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.026927541342
0x14f6358776f0a2f7c44e927a8056d99ed3c861d97afca993ed5917c9ed14aee3Deposit236343682021-12-01 3:10:249 mins ago0xa0541becad779f723de7f5f871ea1f66309bc9be IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016957761638
0x1f92ea28e9637a371b105a1f1bcfe12a0f380fc0625a5718f4c9837449c17d69Deposit236343472021-12-01 3:10:0510 mins ago0x4c83a51f48708d2527b194a821a74924d8b6738e IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.018012529179
0x7e931a4a7d0c608995e3eacc5d0cd683b9d3d42933040fa059ab4be3f78d35f9Deposit236343372021-12-01 3:09:5110 mins ago0x4c83a51f48708d2527b194a821a74924d8b6738e IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.018014144266
0x1a538a2a00ab4c269e3cb4a307a3aa1731bf909d9af8d3e8078395761edc4116Deposit236342692021-12-01 3:08:2311 mins ago0x74cff69922ce4c25735aad27734f9c995397c625 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.019490523111
0xc3c99385e517cf31d7e7511050ab73c75727bd89adda5e721d515edc7f0acdf7Deposit236341892021-12-01 3:07:0413 mins ago0x7d81ed04611c8c653d1f8dfe854db81cbca3bb37 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016417131042
0x26c5344ea0f051da17bb783e21fe0ae6ac8098b617b39a517d0d158c25edf6c1Deposit236341742021-12-01 3:06:4713 mins ago0x6d7ceb1104b34e52c2e15b34ffdff304ac4caee6 IN  0x2639779d6ca9091483a2a7b9a1fe77ab83b902810 FTM0.016510045547
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Latest 9 internal transactions
Parent Txn Hash Block From To Value
0x6bbf6ca276a1bb7f34fa0f7570bbbb951385b55dfd4de83748402343e709c28f233869612021-11-28 14:14:312 days 13 hrs ago 0xd1d94814157b340a782e56f5fef88b2220c6cbed 0x2639779d6ca9091483a2a7b9a1fe77ab83b902811,400 FTM
0xd0c45557ef19881a0bc596f0f2d4f5b15739b0dd318200dd853a35745f895f88233867892021-11-28 14:12:092 days 13 hrs ago 0xd1d94814157b340a782e56f5fef88b2220c6cbed 0x2639779d6ca9091483a2a7b9a1fe77ab83b902811,500 FTM
0x70880d8a01c0cd5274784c4ea265e5e14dc1e039ac7a04178f3c5f94973f424e233867272021-11-28 14:11:182 days 13 hrs ago 0xd1d94814157b340a782e56f5fef88b2220c6cbed 0x2639779d6ca9091483a2a7b9a1fe77ab83b902811,500 FTM
0x15a88fe06733f77c8d465123ebf78031130c1e23f501a56c6d0d2e2772e2396e227305932021-11-21 19:39:099 days 7 hrs ago 0xda30c6ca025acfd8bd4ec50c6727c5354ca495de 0x2639779d6ca9091483a2a7b9a1fe77ab83b902810.5 FTM
0x78f185ce1e0d6ab6b6dccbd1c6c5c0e52c6703081b9bd45e525f7adb238c105c227304052021-11-21 19:36:269 days 7 hrs ago 0x6350d5ec58648401e302981cb331ad041b484428 0x2639779d6ca9091483a2a7b9a1fe77ab83b902810.7 FTM
0x55ee2d5621dd4129fc9f06497518192561d3914765392ffed3f4320fe6f079ab227300342021-11-21 19:31:069 days 7 hrs ago 0x6350d5ec58648401e302981cb331ad041b484428 0x2639779d6ca9091483a2a7b9a1fe77ab83b902810.988576128790966774 FTM
0x119308187b3ff028e85bae16c0cf6a20ccfac67d197e880368a6d4e7ee8f528a227298482021-11-21 19:27:579 days 7 hrs ago 0x6350d5ec58648401e302981cb331ad041b484428 0x2639779d6ca9091483a2a7b9a1fe77ab83b902810.4 FTM
0xf229725f3611b1a0a2238cc4d0dbd5582379e82967bd98d2f46b203fde945771227298092021-11-21 19:27:209 days 7 hrs ago 0xda30c6ca025acfd8bd4ec50c6727c5354ca495de 0x2639779d6ca9091483a2a7b9a1fe77ab83b902810.4 FTM
0xc65c4b3c6e7297cbbaf46a67e90d2bf0cd992c8431e55407d82543e89b2ae4a4225494432021-11-19 22:30:5211 days 4 hrs ago 0x67aa010b59b61d057ba4899154184b6afa7029cf  Contract Creation0 FTM
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Contract Source Code Verified (Exact Match)

Contract Name:
MasterChef

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity Multiple files format)

File 1 of 13: MasterChef.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./SafeMath.sol";
import "./IBEP20.sol";
import "./SafeBEP20.sol";
import "./Ownable.sol";
import "./ReentrancyGuard.sol";

import "./Raven.sol";

contract MasterChef is Ownable, ReentrancyGuard {
    using SafeMath for uint256;
    using SafeBEP20 for IBEP20;

    // Info of each user.
    struct UserInfo {
        uint256 amount;         // How many LP tokens the user has provided.
        uint256 rewardDebt;     // Reward debt. See explanation below.
        //
        // We do some fancy math here. Basically, any point in time, the amount of RAVEN
        // entitled to a user but is pending to be distributed is:
        //
        //   pending reward = (user.amount * pool.accRavenPerShare) - user.rewardDebt
        //
        // Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens:
        //   1. The pool's `accRavenPerShare` (and `lastRewardBlock`) gets updated.
        //   2. User receives the pending reward sent to his/her address.
        //   3. User's `amount` gets updated.
        //   4. User's `rewardDebt` gets updated.
    }

    // Info of each pool.
    struct PoolInfo {
        IBEP20 lpToken;           // Address of LP token contract.
        uint256 allocPoint;       // How many allocation points assigned to this pool. RAVEN to distribute per block.
        uint256 lastRewardBlock;  // Last block that RAVEN distribution occurs.
        uint256 accRavenPerShare;   // Accumulated RAVEN per share, times 1e12. See below.
        uint16 depositFeeBP;      // Deposit fee in basis points
        uint256 lpSupply;
    }

    // The RAVEN TOKEN!
    Raven public raven;
    // Dev address.
    address public devaddr;
    // RAVEN tokens created per block.
    uint256 public ravenPerBlock;
    // Bonus muliplier for early RAVEN makers.
    uint256 public constant BONUS_MULTIPLIER = 1;
    // Deposit Fee address
    address public feeAddress1;
    address public feeAddress2;
    address public feeAddress3;
    //buyback address
    address public buyBackAddress;

    // Info of each pool.
    PoolInfo[] public poolInfo;
    // Info of each user that stakes LP tokens.
    mapping(uint256 => mapping(address => UserInfo)) public userInfo;
    // Total allocation points. Must be the sum of all allocation points in all pools.
    uint256 public totalAllocPoint = 0;
    // The block number when Raven mining starts.
    uint256 public startBlock;
    // The maximum supply for RAVEN
    uint256 public maxSupply = 160000 * 10 ** 18;


    event Deposit(address indexed user, uint256 indexed pid, uint256 amount);
    event Withdraw(address indexed user, uint256 indexed pid, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 indexed pid, uint256 amount);
    event SetFeeAddress1(address indexed user, address indexed newAddress);
    event SetFeeAddress2(address indexed user, address indexed newAddress);
    event SetFeeAddress3(address indexed user, address indexed newAddress);
    event SetBuyBackAddress(address indexed user, address indexed newAddress);
    event SetDevAddress(address indexed user, address indexed newAddress);
    event UpdateEmissionRate(address indexed user, uint256 ravenPerBlock);
    event addPool(uint256 indexed pid, address lpToken, uint256 allocPoint, uint256 depositFeeBP);
    event setPool(uint256 indexed pid, address lpToken, uint256 allocPoint, uint256 depositFeeBP);
    event UpdateStartBlock(uint256 newStartBlock);
    event UpdateMaxSupply(uint256 newMaxSupply);

    constructor(
        Raven _raven,
        address _devaddr,
        address _feeAddress1,
        address _feeAddress2,
        address _feeAddress3,
        address _buyBackAddress,
        uint256 _ravenPerBlock,
        uint256 _startBlock
    ) public {
        raven = _raven;
        devaddr = _devaddr;
        feeAddress1 = _feeAddress1;
        feeAddress2 = _feeAddress2;
        feeAddress3 = _feeAddress3;
        buyBackAddress = _buyBackAddress;
        ravenPerBlock = _ravenPerBlock;
        startBlock  = _startBlock;
    }

    function poolLength() external view returns (uint256) {
        return poolInfo.length;
    }

    mapping(IBEP20 => bool) public poolExistence;
    modifier nonDuplicated(IBEP20 _lpToken) {
        require(poolExistence[_lpToken] == false, "nonDuplicated: duplicated");
        _;
    }

    // Add a new lp to the pool. Can only be called by the owner.
    function add(uint256 _allocPoint, IBEP20 _lpToken, uint16 _depositFeeBP, bool _withUpdate) external onlyOwner nonDuplicated(_lpToken) {
        // valid ERC20 token
        _lpToken.balanceOf(address(this));

        require(_depositFeeBP <= 400, "add: invalid deposit fee basis points");
        if (_withUpdate) {
            massUpdatePools();
        }
        uint256 lastRewardBlock  = block.number > startBlock ? block.number : startBlock;
        totalAllocPoint = totalAllocPoint.add(_allocPoint);
        poolExistence[_lpToken] = true;
        poolInfo.push(PoolInfo({
            lpToken : _lpToken,
            allocPoint : _allocPoint,
            lastRewardBlock: lastRewardBlock,
            accRavenPerShare : 0,
            depositFeeBP : _depositFeeBP,
            lpSupply: 0
        }));

        emit addPool(poolInfo.length - 1, address(_lpToken), _allocPoint, _depositFeeBP);
    }

    // Update the given pool's RAVEN allocation point and deposit fee. Can only be called by the owner.
    function set(uint256 _pid, uint256 _allocPoint, uint16 _depositFeeBP, bool _withUpdate) external onlyOwner {
        require(_depositFeeBP <= 400, "set: invalid deposit fee basis points");
        if (_withUpdate) {
            massUpdatePools();
        }
        totalAllocPoint = totalAllocPoint.sub(poolInfo[_pid].allocPoint).add(_allocPoint);
        poolInfo[_pid].allocPoint = _allocPoint;
        poolInfo[_pid].depositFeeBP = _depositFeeBP;

        emit setPool(_pid, address(poolInfo[_pid].lpToken), _allocPoint, _depositFeeBP);
    }

    // Return reward multiplier over the given _from to _to block.
    function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) {
        if (raven.totalSupply() >= maxSupply) {
            return 0;
        }
        return _to.sub(_from);
    }

    // View function to see pending RAVEN on frontend.
    function pendingRaven(uint256 _pid, address _user) external view returns (uint256) {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][_user];
        uint256 accRavenPerShare = pool.accRavenPerShare;
        if (block.number  > pool.lastRewardBlock  && pool.lpSupply != 0 && totalAllocPoint > 0) {
            uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
            uint256 ravenReward = multiplier.mul(ravenPerBlock).mul(pool.allocPoint).div(totalAllocPoint);
            accRavenPerShare = accRavenPerShare.add(ravenReward.mul(1e12).div(pool.lpSupply));
        }
        return user.amount.mul(accRavenPerShare).div(1e12).sub(user.rewardDebt);
    }

    // Update reward variables for all pools. Be careful of gas spending!
    function massUpdatePools() public {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            updatePool(pid);
        }
    }

    // Update reward variables of the given pool to be up-to-date.
    function updatePool(uint256 _pid) public {
        PoolInfo storage pool = poolInfo[_pid];
        if (block.number  <= pool.lastRewardBlock) {
            return;
        }
        if (pool.lpSupply == 0 || pool.allocPoint == 0) {
            pool.lastRewardBlock  = block.number;
            return;
        }
        uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
        uint256 ravenReward = multiplier.mul(ravenPerBlock).mul(pool.allocPoint).div(totalAllocPoint);
        // add condition for max supply
        if (raven.totalSupply().add(ravenReward) > maxSupply) {
            ravenReward = maxSupply.sub(raven.totalSupply());
        }
        raven.mint(devaddr, ravenReward.div(10));
        raven.mint(address(this), ravenReward);
        pool.accRavenPerShare = pool.accRavenPerShare.add(ravenReward.mul(1e12).div(pool.lpSupply));
        pool.lastRewardBlock = block.number;
    }

    // Deposit LP tokens to MasterChef for RAVEN allocation.
    function deposit(uint256 _pid, uint256 _amount) external nonReentrant {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        updatePool(_pid);
        if (user.amount > 0) {
            uint256 pending = user.amount.mul(pool.accRavenPerShare).div(1e12).sub(user.rewardDebt);
            if (pending > 0) {
                safeRavenTransfer(msg.sender, pending);
            }
        }
        if (_amount > 0) {
            uint256 previousAmount = pool.lpToken.balanceOf(address(this));
            pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount);
            uint256 afterAmount =  pool.lpToken.balanceOf(address(this));
            _amount = afterAmount.sub(previousAmount);
            if (pool.depositFeeBP > 0) {
                uint256 depositFee = _amount.mul(pool.depositFeeBP).div(10000);
                pool.lpToken.safeTransfer(feeAddress1, depositFee.div(100).mul(29));
                pool.lpToken.safeTransfer(feeAddress2, depositFee.div(100).mul(29));
                pool.lpToken.safeTransfer(feeAddress3, depositFee.div(100).mul(29));
                pool.lpToken.safeTransfer(buyBackAddress, depositFee.div(100).mul(13));
                user.amount = user.amount.add(_amount).sub(depositFee);
                pool.lpSupply = pool.lpSupply.add(_amount).sub(depositFee);
            } else {
                user.amount = user.amount.add(_amount);
                pool.lpSupply = pool.lpSupply.add(_amount);
            }
        }
        user.rewardDebt = user.amount.mul(pool.accRavenPerShare).div(1e12);
        emit Deposit(msg.sender, _pid, _amount);
    }

    // Withdraw LP tokens from MasterChef.
    function withdraw(uint256 _pid, uint256 _amount) external nonReentrant {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        require(user.amount >= _amount, "withdraw: not good");
        updatePool(_pid);
        uint256 pending = user.amount.mul(pool.accRavenPerShare).div(1e12).sub(user.rewardDebt);
        if (pending > 0) {
            safeRavenTransfer(msg.sender, pending);
        }
        if (_amount > 0) {
            user.amount = user.amount.sub(_amount);
            pool.lpToken.safeTransfer(address(msg.sender), _amount);
            pool.lpSupply = pool.lpSupply.sub(_amount);
        }
        user.rewardDebt = user.amount.mul(pool.accRavenPerShare).div(1e12);
        emit Withdraw(msg.sender, _pid, _amount);
    }

    // Withdraw without caring about rewards. EMERGENCY ONLY.
    function emergencyWithdraw(uint256 _pid) external nonReentrant {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        uint256 amount = user.amount;
        user.amount = 0;
        user.rewardDebt = 0;
        pool.lpToken.safeTransfer(address(msg.sender), amount);

        if (pool.lpSupply >=  amount) {
            pool.lpSupply = pool.lpSupply.sub(amount);
        } else {
            pool.lpSupply = 0;
        }

        emit EmergencyWithdraw(msg.sender, _pid, amount);
    }

    // Safe raven transfer function, just in case if rounding error causes pool to not have enough RAVEN.
    function safeRavenTransfer(address _to, uint256 _amount) internal {
        uint256 ravenBal = raven.balanceOf(address(this));
        bool transferSuccess = false;
        if (_amount > ravenBal) {
            transferSuccess = raven.transfer(_to, ravenBal);
        } else {
            transferSuccess = raven.transfer(_to, _amount);
        }
        require(transferSuccess, "safeRavenTransfer: transfer failed");
    }

    // Update dev address.
    function setDevAddress(address _devaddr) external {
        require(msg.sender == devaddr, "dev: wut?");
        devaddr = _devaddr;
        emit SetDevAddress(msg.sender, _devaddr);
    }

    function setFeeAddress1(address _feeAddress1) external {
        require(msg.sender == feeAddress1, "setFeeAddress1: FORBIDDEN");
        require(_feeAddress1 != address(0), "!nonzero");
        feeAddress1 = _feeAddress1;
        emit SetFeeAddress1(msg.sender, _feeAddress1);
    }

    function setFeeAddress2(address _feeAddress2) external {
        require(msg.sender == feeAddress2, "setFeeAddress2: FORBIDDEN");
        require(_feeAddress2 != address(0), "!nonzero");
        feeAddress2 = _feeAddress2;
        emit SetFeeAddress2(msg.sender, _feeAddress2);
    }

    function setFeeAddress3(address _feeAddress3) external {
        require(msg.sender == feeAddress3, "setFeeAddress3: FORBIDDEN");
        require(_feeAddress3 != address(0), "!nonzero");
        feeAddress3 = _feeAddress3;
        emit SetFeeAddress3(msg.sender, _feeAddress3);
    }

    function setBuyBackAddress(address _buyBackAddress) external {
        require(msg.sender == buyBackAddress, "setBuyBackAddress: FORBIDDEN");
        require(_buyBackAddress != address(0), "!nonzero");
        buyBackAddress = _buyBackAddress;
        emit SetBuyBackAddress(msg.sender, _buyBackAddress);
    }

    //Pancake has to add hidden dummy pools inorder to alter the emission, here we make it simple and transparent to all.
    function updateEmissionRate(uint256 _ravenPerBlock) external onlyOwner {
        massUpdatePools();
        ravenPerBlock = _ravenPerBlock;
        emit UpdateEmissionRate(msg.sender, _ravenPerBlock);
    }

    // Only update before start of farm
    function updateStartBlock(uint256 _newStartBlock) external onlyOwner {
        require(block.number < startBlock, "cannot change start block if farm has already started");
        require(block.number < _newStartBlock, "cannot set start block in the past");
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            PoolInfo storage pool = poolInfo[pid];
            pool.lastRewardBlock = _newStartBlock;
        }
        startBlock = _newStartBlock;

        emit UpdateStartBlock(startBlock);
    }

    function updateMaxSupply(uint256 _newMaxSupply) external onlyOwner {
        require(raven.totalSupply() < maxSupply, "cannot change max supply if max supply has already been reached");
        maxSupply = _newMaxSupply;
        emit UpdateMaxSupply(maxSupply);
    }
}

File 2 of 13: Address.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 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");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

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

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

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 3 of 13: BEP20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.4.0;

import './Ownable.sol';
import './Context.sol';
import './IBEP20.sol';
import './SafeMath.sol';

/**
 * @dev Implementation of the {IBEP20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {BEP20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-BEP20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of BEP20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IBEP20-approve}.
 */
contract BEP20 is Context, IBEP20, Ownable {
    using SafeMath for uint256;

    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name, string memory symbol) public {
        _name = name;
        _symbol = symbol;
        _decimals = 18;
    }

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external override view returns (address) {
        return owner();
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public override view returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public override view returns (string memory) {
        return _symbol;
    }

    /**
    * @dev Returns the number of decimals used to get its user representation.
    */
    function decimals() public override view returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {BEP20-totalSupply}.
     */
    function totalSupply() public override view returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {BEP20-balanceOf}.
     */
    function balanceOf(address account) public override view returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {BEP20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {BEP20-allowance}.
     */
    function allowance(address owner, address spender) public override view returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {BEP20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {BEP20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {BEP20};
     *
     * Requirements:
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for `sender`'s tokens of at least
     * `amount`.
     */
    function transferFrom (address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(amount, 'BEP20: transfer amount exceeds allowance')
        );
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {BEP20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {BEP20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, 'BEP20: decreased allowance below zero'));
        return true;
    }

    /**
     * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing
     * the total supply.
     *
     * Requirements
     *
     * - `msg.sender` must be the token owner
     */
    function mint(uint256 amount) public onlyOwner returns (bool) {
        _mint(_msgSender(), amount);
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer (address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), 'BEP20: transfer from the zero address');
        require(recipient != address(0), 'BEP20: transfer to the zero address');

        _balances[sender] = _balances[sender].sub(amount, 'BEP20: transfer amount exceeds balance');
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal {
        require(account != address(0), 'BEP20: mint to the zero address');

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal {
        require(account != address(0), 'BEP20: burn from the zero address');

        _balances[account] = _balances[account].sub(amount, 'BEP20: burn amount exceeds balance');
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
     *
     * This is internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve (address owner, address spender, uint256 amount) internal {
        require(owner != address(0), 'BEP20: approve from the zero address');
        require(spender != address(0), 'BEP20: approve to the zero address');

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`.`amount` is then deducted
     * from the caller's allowance.
     *
     * See {_burn} and {_approve}.
     */
    function _burnFrom(address account, uint256 amount) internal {
        _burn(account, amount);
        _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, 'BEP20: burn amount exceeds allowance'));
    }
}

File 4 of 13: Context.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 5 of 13: IBEP20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.4;

interface IBEP20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the token decimals.
     */
    function decimals() external view returns (uint8);

    /**
     * @dev Returns the token symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the token name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external view returns (address);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

File 6 of 13: IUniswapV2Factory.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

File 7 of 13: IUniswapV2Pair.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}

File 8 of 13: IUniswapV2Router02.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}


pragma solidity >=0.6.2;


interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

File 9 of 13: Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), 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 {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

File 10 of 13: Raven.sol
// SPDX-License-Identifier: MIT

import "./BEP20.sol";
import "./SafeBEP20.sol";
import "./IUniswapV2Router02.sol";
import "./IUniswapV2Pair.sol";
import "./IUniswapV2Factory.sol";

pragma solidity 0.6.12;

contract Raven is BEP20 {
    
    using SafeBEP20 for IBEP20;

    // Transfer tax rate in basis points. (default 2%)
    uint16 public transferTaxRate = 200;
    // Max transfer tax rate: 10%.
    uint16 public constant MAXIMUM_TRANSFER_TAX_RATE = 1000;
    // Burn address
    address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;
    //  SCARE token for automated buyback and burn
    address public constant SCARE = 0x46e1Ee17f51c52661D04238F1700C547dE3B84A1; // Livenet Scarecrow Token
    address public constant WFTM = 0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83;  //  Livenet wFTM

    // Max transfer amount rate in basis points. (default is 100% of total supply)
    uint16 public maxTransferAmountRate = 10000;
    // Addresses that excluded from antiWhale
    mapping(address => bool) private _excludedFromAntiWhale;
    // Automatic swap and liquify enabled
    bool public swapAndLiquifyEnabled = false;
    // Min amount to liquify. (default 0.1 RAVEN (100000000000000000))
    uint256 public minAmountToLiquify = 100000000000000000;
    // The swap router, modifiable. Can be changed to Scarecrow Finance's router when our own AMM release
    // SpookySwap Router: 0xF491e7B69E4244ad4002BC14e878a34207E38c29
    IUniswapV2Router02 public ravenSwapRouter;
    // The trading pair
    address public ravenSwapPair;
    // In swap and liquify
    bool private _inSwapAndLiquify;
    // Addresses that are excluded from transfer tax (e.g. presale, masterchef contract)
    mapping(address => bool) private _excludedFromTransferTax;

    // The operator to update the transfer tax rate
    address private _operator;

    // Events
    event OperatorTransferred(address indexed previousOperator, address indexed newOperator);
    event TransferTaxRateUpdated(address indexed operator, uint256 previousRate, uint256 newRate);
    event BurnRateUpdated(address indexed operator, uint256 previousRate, uint256 newRate);
    event MaxTransferAmountRateUpdated(address indexed operator, uint256 previousRate, uint256 newRate);
    event SwapAndLiquifyEnabledUpdated(address indexed operator, bool enabled);
    event MinAmountToLiquifyUpdated(address indexed operator, uint256 previousAmount, uint256 newAmount);
    event ScarecrowFinanceRouterUpdated(address indexed operator, address indexed router, address indexed pair);
    event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity);
    event BurnContractUpdated(address indexed oldBurnContract, address indexed newBurnContract);

    modifier onlyOperator() {
        require(_operator == msg.sender, "operator: caller is not the operator");
        _;
    }

    modifier antiWhale(address sender, address recipient, uint256 amount) {
        if (maxTransferAmount() > 0) {
            if (
                _excludedFromAntiWhale[sender] == false
                && _excludedFromAntiWhale[recipient] == false
            ) {
                require(amount <= maxTransferAmount(), "RAVEN::antiWhale: Transfer amount exceeds the maxTransferAmount");
            }
        }
        _;
    }

    modifier lockTheSwap {
        _inSwapAndLiquify = true;
        _;
        _inSwapAndLiquify = false;
    }

    modifier transferTaxFree {
        uint16 _transferTaxRate = transferTaxRate;
        transferTaxRate = 0;
        _;
        transferTaxRate = _transferTaxRate;
    }

    /**
     * @notice Constructs the RavenToken contract.
     */
    constructor() public BEP20("Raven", "RAVEN") {
        _operator = _msgSender();
        emit OperatorTransferred(address(0), _operator);

        _excludedFromAntiWhale[msg.sender] = true;
        _excludedFromAntiWhale[address(0)] = true;
        _excludedFromAntiWhale[address(this)] = true;
        _excludedFromAntiWhale[BURN_ADDRESS] = true;
        _excludedFromTransferTax[msg.sender]= true;
        _excludedFromTransferTax[BURN_ADDRESS]= true;
    }

    /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef).
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
        _moveDelegates(address(0), _delegates[_to], _amount);
    }


    /// @dev overrides transfer function to meet tokenomics of RAVEN
    function _transfer(address sender, address recipient, uint256 amount) internal virtual override antiWhale(sender, recipient, amount) {
        // swap and liquify
        if (
            swapAndLiquifyEnabled == true
            && _inSwapAndLiquify == false
            && address(ravenSwapRouter) != address(0)
            && ravenSwapPair != address(0)
            && sender != ravenSwapPair
            && sender != owner()
        ) {
            swapAndLiquify();
        }

        if (transferTaxRate == 0 || _excludedFromTransferTax[sender] || _excludedFromTransferTax[recipient]) {
            super._transfer(sender, recipient, amount);
        } else {
            // default tax is 2% of every transfer
            uint256 taxAmount = amount.mul(transferTaxRate).div(10000);

            uint256 liquidityAmount = taxAmount;
            require(taxAmount == liquidityAmount, "RAVEN::transfer: Burn value invalid");

            // default 98% of transfer sent to recipient
            uint256 sendAmount = amount.sub(taxAmount);
            require(amount == sendAmount + taxAmount, "RAVEN::transfer: Tax value invalid");

            super._transfer(sender, address(this), liquidityAmount);    // from user to contract for tax liquidity amount
            super._transfer(sender, recipient, sendAmount);             //  form user to recipient for amount.sub(tax)
            amount = sendAmount;
        }
    }

    /// @dev Swap and liquify
    function swapAndLiquify() private lockTheSwap transferTaxFree {
        uint256 contractTokenBalance = balanceOf(address(this));    // declaring balance of raven
        uint256 maxTransferAmount = maxTransferAmount();    //  max amount it can transfer
        contractTokenBalance = contractTokenBalance > maxTransferAmount ? maxTransferAmount : contractTokenBalance; //  if the balance is more than the max transfer amt, declare balance = max tx

        if (contractTokenBalance >= minAmountToLiquify) {
            // only min amount to liquify
            uint256 liquifyAmount = minAmountToLiquify;

            // split amount into fifths
            // 4/5 used to buyback Scarecrow
            // 1/5 used to make Raven LP 
            uint256 fifth = liquifyAmount.div(5);
            uint256 buyBackAmount = liquifyAmount.sub(fifth);

            // buy and burn scare
            triggerScareBuyback(buyBackAmount);

            uint256 half = fifth.div(2);
            uint256 otherHalf = fifth.sub(half);
            // capture the contract's current ETH balance.
            // this is so that we can capture exactly the amount of ETH that the
            // swap creates, and not make the liquidity event include any ETH that
            // has been manually sent to the contract
            uint256 initialBalance = address(this).balance;

            // swap tokens for ETH
            swapTokensForEth(half);

            // how much ETH did we just swap into?
            uint256 newBalance = address(this).balance.sub(initialBalance);

            // add liquidity
            addLiquidity(otherHalf, newBalance);

            emit SwapAndLiquify(half, newBalance, otherHalf);
        }
    }

    function triggerScareBuyback(uint256 autoBuybackAmount) internal {
        buyTokens(autoBuybackAmount, BURN_ADDRESS);     // hardcoded that SCARE buyback goes to Burn Address
    }

    function buyTokens(uint256 amount, address to) private {
        address[] memory path = new address[](3);
        path[0] = address(this);                    // from RAVEN
        path[1] = ravenSwapRouter.WETH();           // to WETH
        path[2] = SCARE;                            // to SCARE

        _approve(address(this), address(ravenSwapRouter), amount);
        IBEP20(WFTM).safeIncreaseAllowance(address(ravenSwapRouter), amount);

        ravenSwapRouter.swapExactTokensForTokensSupportingFeeOnTransferTokens(
            amount,
            0,              //      accept any amount
            path,
            to,             //         burnAddress
            block.timestamp
        );
    }

    /// @dev Swap tokens for eth
    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the ravenSwap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = ravenSwapRouter.WETH();

        _approve(address(this), address(ravenSwapRouter), tokenAmount);

        // make the swap
        ravenSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    /// @dev Add liquidity
    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(ravenSwapRouter), tokenAmount);

        // add the liquidity
        ravenSwapRouter.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            operator(),
            block.timestamp
        );
    }

    /**
     * @dev Returns the max transfer amount.
     */
    function maxTransferAmount() public view returns (uint256) {
        return totalSupply().mul(maxTransferAmountRate).div(10000);
    }

    /**
     * @dev Returns the address is excluded from antiWhale or not.
     */
    function isExcludedFromAntiWhale(address _account) public view returns (bool) {
        return _excludedFromAntiWhale[_account];
    }


    /**
     * @dev Returns if the address is excluded from transferTax or not.
     */
    function isExcludedFromTransferTax(address _account) public view returns (bool) {
        return _excludedFromTransferTax[_account];
    }

    // To receive FTM from ravenSwapRouter when swapping
    receive() external payable {}

    /**
     * @dev Update the transfer tax rate.
     * Can only be called by the current operator.
     */
    function updateTransferTaxRate(uint16 _transferTaxRate) public onlyOperator {
        require(_transferTaxRate <= MAXIMUM_TRANSFER_TAX_RATE, "RAVEN::updateTransferTaxRate: Transfer tax rate must not exceed the maximum rate.");
        emit TransferTaxRateUpdated(msg.sender, transferTaxRate, _transferTaxRate);
        transferTaxRate = _transferTaxRate;
    }



    /**
     * @dev Update the max transfer amount rate.
     * Can only be called by the current operator.
     */
    function updateMaxTransferAmountRate(uint16 _maxTransferAmountRate) public onlyOperator {
        // Maximum Transfer Amount Rate
        require(_maxTransferAmountRate <= 10000, "RAVEN::updateMaxTransferAmountRate: Max transfer amount rate must not exceed the maximum rate.");
        // Minimum Transfer Amount Rate so that operator cannot set max transfer to 0.001% of total supply
        require(_maxTransferAmountRate >= 30, "RAVEN::updateMaxTransferAmountRate: Max transfer amount rate must not exceed the minimum rate.");
        emit MaxTransferAmountRateUpdated(msg.sender, maxTransferAmountRate, _maxTransferAmountRate);
        maxTransferAmountRate = _maxTransferAmountRate;
    }

    /**
     * @dev Update the min amount to liquify.
     * Can only be called by the current operator.
     */
    function updateMinAmountToLiquify(uint256 _minAmount) public onlyOperator {
        emit MinAmountToLiquifyUpdated(msg.sender, minAmountToLiquify, _minAmount);
        minAmountToLiquify = _minAmount;
    }

    /**
     * @dev Exclude or include an address from antiWhale.
     * Can only be called by the current operator.
     */
    function setExcludedFromAntiWhale(address _account, bool _excluded) public onlyOperator {
        _excludedFromAntiWhale[_account] = _excluded;
    }

    /**
     * @dev Exclude or include an address from transferTax.
     * Can only be called by the current operator.
     */
    function setExcludedFromTransferTax(address _account, bool _excluded) public onlyOperator {
        _excludedFromTransferTax[_account] = _excluded;
    }

    /**
     * @dev Update the swapAndLiquifyEnabled.
     * Can only be called by the current operator.
     */
    function updateSwapAndLiquifyEnabled(bool _enabled) public onlyOperator {
        emit SwapAndLiquifyEnabledUpdated(msg.sender, _enabled);
        swapAndLiquifyEnabled = _enabled;
    }

    /**
     * @dev Update the swap router.
     * Can only be called by the current operator.
     */
    function updateScarecrowFinanceRouter(address _router) public onlyOperator {
        ravenSwapRouter = IUniswapV2Router02(_router);
        ravenSwapPair = IUniswapV2Factory(ravenSwapRouter.factory()).getPair(address(this), ravenSwapRouter.WETH());
        require(ravenSwapPair != address(0), "RAVEN::updateScarecrowFinanceRouter: Invalid pair address.");
        emit ScarecrowFinanceRouterUpdated(msg.sender, address(ravenSwapRouter), ravenSwapPair);
    }

    /**
     * @dev Returns the address of the current operator.
     */
    function operator() public view returns (address) {
        return _operator;
    }

    /**
     * @dev Transfers operator of the contract to a new account (`newOperator`).
     * Can only be called by the current operator.
     */
    function transferOperator(address newOperator) public onlyOperator {
        require(newOperator != address(0), "RAVEN::transferOperator: new operator is the zero address");
        emit OperatorTransferred(_operator, newOperator);
        _operator = newOperator;
    }

    // Copied and modified from YAM code:
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol
    // Which is copied and modified from COMPOUND:
    // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol

    /// @dev A record of each accounts delegate
    mapping (address => address) internal _delegates;

    /// @notice A checkpoint for marking number of votes from a given block
    struct Checkpoint {
        uint32 fromBlock;
        uint256 votes;
    }

    /// @notice A record of votes checkpoints for each account, by index
    mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;

    /// @notice The number of checkpoints for each account
    mapping (address => uint32) public numCheckpoints;

    /// @notice The EIP-712 typehash for the contract's domain
    bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");

    /// @notice The EIP-712 typehash for the delegation struct used by the contract
    bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    /// @notice A record of states for signing / validating signatures
    mapping (address => uint) public nonces;

      /// @notice An event thats emitted when an account changes its delegate
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /// @notice An event thats emitted when a delegate account's vote balance changes
    event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);

    /**
     * @notice Delegate votes from `msg.sender` to `delegatee`
     * @param delegator The address to get delegatee for
     */
    function delegates(address delegator)
        external
        view
        returns (address)
    {
        return _delegates[delegator];
    }

   /**
    * @notice Delegate votes from `msg.sender` to `delegatee`
    * @param delegatee The address to delegate votes to
    */
    function delegate(address delegatee) external {
        return _delegate(msg.sender, delegatee);
    }

    /**
     * @notice Delegates votes from signatory to `delegatee`
     * @param delegatee The address to delegate votes to
     * @param nonce The contract state required to match the signature
     * @param expiry The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function delegateBySig(
        address delegatee,
        uint nonce,
        uint expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    )
        external
    {
        bytes32 domainSeparator = keccak256(
            abi.encode(
                DOMAIN_TYPEHASH,
                keccak256(bytes(name())),
                getChainId(),
                address(this)
            )
        );

        bytes32 structHash = keccak256(
            abi.encode(
                DELEGATION_TYPEHASH,
                delegatee,
                nonce,
                expiry
            )
        );

        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                domainSeparator,
                structHash
            )
        );

        address signatory = ecrecover(digest, v, r, s);
        require(signatory != address(0), "RAVEN::delegateBySig: invalid signature");
        require(nonce == nonces[signatory]++, "RAVEN::delegateBySig: invalid nonce");
        require(now <= expiry, "RAVEN::delegateBySig: signature expired");
        return _delegate(signatory, delegatee);
    }

    /**
     * @notice Gets the current votes balance for `account`
     * @param account The address to get votes balance
     * @return The number of current votes for `account`
     */
    function getCurrentVotes(address account)
        external
        view
        returns (uint256)
    {
        uint32 nCheckpoints = numCheckpoints[account];
        return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
    }

    /**
     * @notice Determine the prior number of votes for an account as of a block number
     * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
     * @param account The address of the account to check
     * @param blockNumber The block number to get the vote balance at
     * @return The number of votes the account had as of the given block
     */
    function getPriorVotes(address account, uint blockNumber)
        external
        view
        returns (uint256)
    {
        require(blockNumber < block.number, "RAVEN::getPriorVotes: not yet determined");

        uint32 nCheckpoints = numCheckpoints[account];
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
            return checkpoints[account][nCheckpoints - 1].votes;
        }

        // Next check implicit zero balance
        if (checkpoints[account][0].fromBlock > blockNumber) {
            return 0;
        }

        uint32 lower = 0;
        uint32 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            Checkpoint memory cp = checkpoints[account][center];
            if (cp.fromBlock == blockNumber) {
                return cp.votes;
            } else if (cp.fromBlock < blockNumber) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return checkpoints[account][lower].votes;
    }

    function _delegate(address delegator, address delegatee)
        internal
    {
        address currentDelegate = _delegates[delegator];
        uint256 delegatorBalance = balanceOf(delegator); // balance of underlying RAVENs (not scaled);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveDelegates(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {
        if (srcRep != dstRep && amount > 0) {
            if (srcRep != address(0)) {
                // decrease old representative
                uint32 srcRepNum = numCheckpoints[srcRep];
                uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
                uint256 srcRepNew = srcRepOld.sub(amount);
                _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
            }

            if (dstRep != address(0)) {
                // increase new representative
                uint32 dstRepNum = numCheckpoints[dstRep];
                uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
                uint256 dstRepNew = dstRepOld.add(amount);
                _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
            }
        }
    }

    function _writeCheckpoint(
        address delegatee,
        uint32 nCheckpoints,
        uint256 oldVotes,
        uint256 newVotes
    )
        internal
    {
        uint32 blockNumber = safe32(block.number, "RAVEN::_writeCheckpoint: block number exceeds 32 bits");

        if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
            checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
        } else {
            checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
            numCheckpoints[delegatee] = nCheckpoints + 1;
        }

        emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
    }

    function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
        require(n < 2**32, errorMessage);
        return uint32(n);
    }

    function getChainId() internal pure returns (uint) {
        uint256 chainId;
        assembly { chainId := chainid() }
        return chainId;
    }
}

File 11 of 13: ReentrancyGuard.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor () internal {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

File 12 of 13: SafeBEP20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./IBEP20.sol";
import "./SafeMath.sol";
import "./Address.sol";

/**
 * @title SafeBEP20
 * @dev Wrappers around BEP20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeBEP20 for IBEP20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeBEP20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IBEP20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IBEP20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IBEP20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IBEP20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeBEP20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IBEP20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IBEP20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeBEP20: decreased allowance below zero");
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IBEP20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeBEP20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeBEP20: BEP20 operation did not succeed");
        }
    }
}

File 13 of 13: SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

Contract Security Audit

Contract ABI

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Raven","name":"_raven","type":"address"},{"internalType":"address","name":"_devaddr","type":"address"},{"internalType":"address","name":"_feeAddress1","type":"address"},{"internalType":"address","name":"_feeAddress2","type":"address"},{"internalType":"address","name":"_feeAddress3","type":"address"},{"internalType":"address","name":"_buyBackAddress","type":"address"},{"internalType":"uint256","name":"_ravenPerBlock","type":"uint256"},{"internalType":"uint256","name":"_startBlock","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EmergencyWithdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"SetBuyBackAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"SetDevAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"SetFeeAddress1","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"SetFeeAddress2","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"SetFeeAddress3","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"ravenPerBlock","type":"uint256"}],"name":"UpdateEmissionRate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newMaxSupply","type":"uint256"}],"name":"UpdateMaxSupply","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newStartBlock","type":"uint256"}],"name":"UpdateStartBlock","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"address","name":"lpToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"allocPoint","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"depositFeeBP","type":"uint256"}],"name":"addPool","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"pid","type":"uint256"},{"indexed":false,"internalType":"address","name":"lpToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"allocPoint","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"depositFeeBP","type":"uint256"}],"name":"setPool","type":"event"},{"inputs":[],"name":"BONUS_MULTIPLIER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_allocPoint","type":"uint256"},{"internalType":"contract IBEP20","name":"_lpToken","type":"address"},{"internalType":"uint16","name":"_depositFeeBP","type":"uint16"},{"internalType":"bool","name":"_withUpdate","type":"bool"}],"name":"add","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"buyBackAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"devaddr","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"feeAddress1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"feeAddress2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"feeAddress3","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_from","type":"uint256"},{"internalType":"uint256","name":"_to","type":"uint256"}],"name":"getMultiplier","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"massUpdatePools","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"address","name":"_user","type":"address"}],"name":"pendingRaven","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IBEP20","name":"","type":"address"}],"name":"poolExistence","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"poolInfo","outputs":[{"internalType":"contract IBEP20","name":"lpToken","type":"address"},{"internalType":"uint256","name":"allocPoint","type":"uint256"},{"internalType":"uint256","name":"lastRewardBlock","type":"uint256"},{"internalType":"uint256","name":"accRavenPerShare","type":"uint256"},{"internalType":"uint16","name":"depositFeeBP","type":"uint16"},{"internalType":"uint256","name":"lpSupply","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"poolLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"raven","outputs":[{"internalType":"contract Raven","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ravenPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"uint256","name":"_allocPoint","type":"uint256"},{"internalType":"uint16","name":"_depositFeeBP","type":"uint16"},{"internalType":"bool","name":"_withUpdate","type":"bool"}],"name":"set","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_buyBackAddress","type":"address"}],"name":"setBuyBackAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_devaddr","type":"address"}],"name":"setDevAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_feeAddress1","type":"address"}],"name":"setFeeAddress1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_feeAddress2","type":"address"}],"name":"setFeeAddress2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_feeAddress3","type":"address"}],"name":"setFeeAddress3","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAllocPoint","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":"_ravenPerBlock","type":"uint256"}],"name":"updateEmissionRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newMaxSupply","type":"uint256"}],"name":"updateMaxSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"updatePool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newStartBlock","type":"uint256"}],"name":"updateStartBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"userInfo","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"rewardDebt","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : _raven (address): 0x175cbf2809acfd7521fdd387d65aac523fe4076f
Arg [1] : _devaddr (address): 0x67aa010b59b61d057ba4899154184b6afa7029cf
Arg [2] : _feeAddress1 (address): 0x00b8a788acc8c8d2d74f3f343316c31a16007924
Arg [3] : _feeAddress2 (address): 0x635d4309cfac7097a3351e523e81ad7b3b79cd66
Arg [4] : _feeAddress3 (address): 0xd32676c0c264232a995587bd664fe7a585c914f1
Arg [5] : _buyBackAddress (address): 0xe8156b07c83eb33166e7efb22eb5a3f071105764
Arg [6] : _ravenPerBlock (uint256): 30000000000000000
Arg [7] : _startBlock (uint256): 22790000

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 000000000000000000000000175cbf2809acfd7521fdd387d65aac523fe4076f
Arg [1] : 00000000000000000000000067aa010b59b61d057ba4899154184b6afa7029cf
Arg [2] : 00000000000000000000000000b8a788acc8c8d2d74f3f343316c31a16007924
Arg [3] : 000000000000000000000000635d4309cfac7097a3351e523e81ad7b3b79cd66
Arg [4] : 000000000000000000000000d32676c0c264232a995587bd664fe7a585c914f1
Arg [5] : 000000000000000000000000e8156b07c83eb33166e7efb22eb5a3f071105764
Arg [6] : 000000000000000000000000000000000000000000000000006a94d74f430000
Arg [7] : 00000000000000000000000000000000000000000000000000000000015bbf70


Deployed ByteCode Sourcemap

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Swarm Source

ipfs://43f334cff5b98050b4ee5d1ee2def7f567e5df06ea13ecd8132721050d0b5690
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Validator ID :
0 FTM

Amount Staked
0

Amount Delegated
0

Staking Total
0

Staking Start Epoch
0

Staking Start Time
0

Proof of Importance
0

Origination Score
0

Validation Score
0

Active
0

Online
0

Downtime
0 s
Address Amount claimed Rewards Created On Epoch Created On
Block Uncle Number Difficulty Gas Used Reward
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