Contract 0xe2e643B051ABCFBE735b99eE00b2dbFd3a7BD798

 
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x2e65f7ff524b1abdf9ea4e4ca5193360cfbfb91a1b1247d129aa1c9f257faad4Withdraw109470622021-09-15 22:07:4130 days 13 hrs ago0x40fb2c88e247b75049185c5e3e7a64185e1a0127 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.000891815
0x7c4664a46ec2999843f6747c53cb4d0e7fb4ad67ccfe7bc2aac411c8628e158cWithdraw106691122021-09-06 4:33:3340 days 7 hrs ago0x4706f0148ceb6275cbb7f9860cfba6104d5526d1 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00056381
0xabbc29a5f88266cab2df41b8b4f4f17fbc05de4afd9c81935c655d6424b6d994Deposit106612842021-09-05 22:01:5240 days 13 hrs ago0x27dfa7cf88d96b4091683668af4015ac5631528f IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.000843485
0xa303735b03f0a0b011908c8a467ff4248363bf7b37dc64fc28c51af10092b436Deposit106596822021-09-05 20:41:2540 days 14 hrs ago0x4706f0148ceb6275cbb7f9860cfba6104d5526d1 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068528
0xdfc73cf42694f6c027bd2efb88bbbbf99bddd85ad12e343a98d0df00145a0553Deposit106044062021-09-03 22:28:5942 days 13 hrs ago0x735424cdb40032165113b9f6bdba709b50aac72f IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068522
0x00e59b66c7800e44e2944dc488e5e295b631655cf41492b4ced718341a1455a4Withdraw105451392021-09-01 20:28:1844 days 15 hrs ago0xd4bff5219fd8ba3301381d6f7ef083624f7db7fd IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00056362
0xd57c8f23e29dc1816aedcbfd720ed0a8fa0890918e256c2dfe4c51250d49c858Withdraw105268892021-09-01 5:02:5345 days 6 hrs ago0x366582e0448d6de938e83705daad92f1982a4d98 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00055959
0x154c5293f83e0e6d458ce509b4fdc052e5ccd14898195eadbc8ef37e65fb36caDeposit105268802021-09-01 5:02:2645 days 6 hrs ago0x366582e0448d6de938e83705daad92f1982a4d98 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068528
0x94dd0d60cf2e3c383a4e05aa54bbb90e8e2068d76c52e1ac90eefb779036612fDeposit105036542021-08-31 9:22:0546 days 2 hrs ago0x6d44709ce0a8d0751f0063f217a9ed0b648d8e67 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068528
0x8fb79da72d5e565a6067664079ae28e3e39a3421cdde4fd3f363b3b511e7e30cWithdraw104761252021-08-30 9:51:0947 days 1 hr ago0xe78096eec963c66e141fb63e6a3419cf8c76c213 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00055959
0x3b0af05894ac4e2b9587a92a3744c78bc01b1188f9e49395ab6112699d506483Deposit104761192021-08-30 9:50:5147 days 1 hr ago0xe78096eec963c66e141fb63e6a3419cf8c76c213 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068528
0xb1c4508c5e65a9711b34444a7b80459a8155d99fbb20beec68b6584fb7ee125bWithdraw104088482021-08-28 1:26:3849 days 10 hrs ago0x88c5222c0a5024b4ae3558131e12fda499934a97 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00055959
0x69f5868832ab267d03eddff008b4710f5207d29bf691b75e30efba50edc2b467Withdraw104088442021-08-28 1:26:2649 days 10 hrs ago0x88c5222c0a5024b4ae3558131e12fda499934a97 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00055959
0x1fb81544368656e0e03e26b99328ddcca406eb0ba384940714f41866adaf09fcDeposit104088392021-08-28 1:26:1149 days 10 hrs ago0x88c5222c0a5024b4ae3558131e12fda499934a97 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068528
0xb7baea1e3b2b591c0f0517d99e29636b52c739ca062f3958e2c9c46aa7acb69cDeposit104088372021-08-28 1:26:0549 days 10 hrs ago0x88c5222c0a5024b4ae3558131e12fda499934a97 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068522
0x4f71fc7ceebb6cf83f486af1fce6982be2e9036f86e31130e6ec1cd0c7fb3144Withdraw103038372021-08-24 8:44:1953 days 2 hrs ago0xc8347853812605060656e23451d8593141428351 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00055953
0x40798c4ce66a5b882935468bad7efe79c829128dd279a86909cf3b92a98f3e18Deposit103038312021-08-24 8:44:0153 days 2 hrs ago0xc8347853812605060656e23451d8593141428351 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068522
0x050cb56bb4bb1ad6a47ee8d0b5c7019732dfd141f2e4f1e21ff5277acb485721Withdraw103035752021-08-24 8:31:1253 days 3 hrs ago0x10815e073a0083efa9851ce6d1951a5591be91c4 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00073355
0x3fc91e76c4d2784b180fc35bfaaac513b2e2fedcdbaeec65b9bb429db894b53dWithdraw102694902021-08-23 3:55:4854 days 7 hrs ago0xe8962c1da5b6740097856f772f07ab5aead2d615 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00056387
0xb3e040d2aeb88ead9b3d1fb79b58876ea563a1ab2c7360b676d772c5135b815aWithdraw102694712021-08-23 3:54:5154 days 7 hrs ago0xe8962c1da5b6740097856f772f07ab5aead2d615 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00056381
0x289a080bcdf658f0e3340e7029119d10a10e8854f96f4e01de45e082b1e94e57Withdraw100709772021-08-16 5:37:3261 days 6 hrs ago0x9fa000f4d94f58b1788368e01852aa90c30f880f IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00073355
0xfabd1ea36759df16342c5084c17e230c34c68d367068583636b4eafc32bfaa4eWithdraw100611222021-08-15 21:24:4761 days 14 hrs ago0x84228b6505b0eee64607dbf4d7d4ccdff7f1516c IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00055959
0xc0dd4ea822e10422228924321c4b9d09a36c1dfbeeea8ddb46c4d4fd022de390Deposit100611152021-08-15 21:24:2661 days 14 hrs ago0x84228b6505b0eee64607dbf4d7d4ccdff7f1516c IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00068522
0x29b589b8434be80423b0af7e4799b23cc6f421b1d84432e37cf7d827fdceac71Withdraw100395622021-08-15 3:26:0362 days 8 hrs ago0xad840377c3e7db44ac6f8fd3c28b988497b59190 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00048465
0xc9a7dc7d4a227a6a821cd6c351627acc5b7ef54a553daf330869b664114ab7c2Withdraw100395352021-08-15 3:24:4262 days 8 hrs ago0xad840377c3e7db44ac6f8fd3c28b988497b59190 IN  0xe2e643b051abcfbe735b99ee00b2dbfd3a7bd7980 BNB0.00065369
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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

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 16 : MasterChef.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "@openzeppelin/contracts/math/SafeMath.sol";
import "./libs/IBEP20.sol";
import "./libs/SafeBEP20.sol";
import "./libs/IDumplingReferral.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

import "./SpaceDumplingToken.sol";

// MasterChef is the master of Dumpling. He can make Dumpling and he is a fair guy.
//
// Note that it's ownable and the owner wields tremendous power. The ownership
// will be transferred to a governance smart contract once DUMP is sufficiently
// distributed and the community can show to govern itself.
//
// Have fun reading it. Hopefully it's bug-free. God bless.
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.
		uint256 rewardLockedUp; // Reward locked up.
		uint256 nextHarvestUntil; // When can the user harvest again.
		//
		// We do some fancy math here. Basically, any point in time, the amount of DUMPs
		// entitled to a user but is pending to be distributed is:
		//
		//   pending reward = (user.amount * pool.accDumplingPerShare) - user.rewardDebt
		//
		// Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens:
		//   1. The pool's `accDumplingPerShare` (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. DUMPs to distribute per block.
		uint256 lastRewardBlock; // Last block number that DUMPs distribution occurs.
		uint256 accDumplingPerShare; // Accumulated DUMPs per share, times 1e12. See below.
		uint16 depositFeeBP; // Deposit fee in basis points
		uint256 harvestInterval; // Harvest interval in seconds
	}

	// The SDUMP TOKEN!
	SpaceDumplingToken public dumpling;
	// Dev address.
	address public devAddress;
	// Team address
	address public teamAddress;
	// Dumpler Address
	address public dumplerAddress;
	// Dumpler Mini Address;
	address public dumplerMiniAddress;
	// Is dumplers fee enabled;
	bool public isDumplerFeeEnabled = false;
	// Deposit Fee address
	address public feeAddress;
	// DUMP tokens created per block.
	uint256 public dumplingPerBlock;
	// Bonus muliplier for early dumpling makers.
	uint256 public constant BONUS_MULTIPLIER = 1;
	// Max harvest interval: 14 days.
	uint256 public constant MAXIMUM_HARVEST_INTERVAL = 14 days;

	// 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 DUMP mining starts.
	uint256 public startBlock;
	// Total locked up rewards
	uint256 public totalLockedUpRewards;

	// Dumpling referral contract address.
	IDumplingReferral public dumplingReferral;
	// Referral commission rate in basis points.
	uint16 public referralCommissionRate = 100;
	// Max referral commission rate: 10%.
	uint16 public constant MAXIMUM_REFERRAL_COMMISSION_RATE = 1000;

	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 EmissionRateUpdated(address indexed caller, uint256 previousAmount, uint256 newAmount);
	event ReferralCommissionPaid(address indexed user, address indexed referrer, uint256 commissionAmount);
	event RewardLockedUp(address indexed user, uint256 indexed pid, uint256 amountLockedUp);

	constructor(
		SpaceDumplingToken _dumpling,
		uint256 _startBlock,
		uint256 _dumplingPerBlock
	) public {
		dumpling = _dumpling;
		startBlock = _startBlock;
		dumplingPerBlock = _dumplingPerBlock;

		devAddress = msg.sender;
		feeAddress = msg.sender;
	}

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

	// Add a new lp to the pool. Can only be called by the owner.
	// XXX DO NOT add the same LP token more than once. Rewards will be messed up if you do.
	function add(
		uint256 _allocPoint,
		IBEP20 _lpToken,
		uint16 _depositFeeBP,
		uint256 _harvestInterval,
		bool _withUpdate
	) public onlyOwner {
		require(_depositFeeBP <= 10000, "add: invalid deposit fee basis points");
		require(_harvestInterval <= MAXIMUM_HARVEST_INTERVAL, "add: invalid harvest interval");
		if (_withUpdate) {
			massUpdatePools();
		}
		uint256 lastRewardBlock = block.number > startBlock ? block.number : startBlock;
		totalAllocPoint = totalAllocPoint.add(_allocPoint);
		poolInfo.push(
			PoolInfo({
				lpToken: _lpToken,
				allocPoint: _allocPoint,
				lastRewardBlock: lastRewardBlock,
				accDumplingPerShare: 0,
				depositFeeBP: _depositFeeBP,
				harvestInterval: _harvestInterval
			})
		);
	}

	// Update the given pool's DUMP allocation point and deposit fee. Can only be called by the owner.
	function set(
		uint256 _pid,
		uint256 _allocPoint,
		uint16 _depositFeeBP,
		uint256 _harvestInterval,
		bool _withUpdate
	) public onlyOwner {
		require(_depositFeeBP <= 10000, "set: invalid deposit fee basis points");
		require(_harvestInterval <= MAXIMUM_HARVEST_INTERVAL, "set: invalid harvest interval");
		if (_withUpdate) {
			massUpdatePools();
		}
		totalAllocPoint = totalAllocPoint.sub(poolInfo[_pid].allocPoint).add(_allocPoint);
		poolInfo[_pid].allocPoint = _allocPoint;
		poolInfo[_pid].depositFeeBP = _depositFeeBP;
		poolInfo[_pid].harvestInterval = _harvestInterval;
	}

	// Return reward multiplier over the given _from to _to block.
	function getMultiplier(uint256 _from, uint256 _to) public pure returns (uint256) {
		return _to.sub(_from).mul(BONUS_MULTIPLIER);
	}

	// View function to see pending DUMPs on frontend.
	function pendingDumpling(uint256 _pid, address _user) external view returns (uint256) {
		PoolInfo storage pool = poolInfo[_pid];
		UserInfo storage user = userInfo[_pid][_user];
		uint256 accDumplingPerShare = pool.accDumplingPerShare;
		uint256 lpSupply = pool.lpToken.balanceOf(address(this));
		if (block.number > pool.lastRewardBlock && lpSupply != 0) {
			uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
			uint256 dumplingReward = multiplier.mul(dumplingPerBlock).mul(pool.allocPoint).div(totalAllocPoint);
			accDumplingPerShare = accDumplingPerShare.add(dumplingReward.mul(1e12).div(lpSupply));
		}
		uint256 pending = user.amount.mul(accDumplingPerShare).div(1e12).sub(user.rewardDebt);
		return pending.add(user.rewardLockedUp);
	}

	// View function to see if user can harvest DUMPs.
	function canHarvest(uint256 _pid, address _user) public view returns (bool) {
		UserInfo storage user = userInfo[_pid][_user];
		return block.timestamp >= user.nextHarvestUntil;
	}

	// 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;
		}
		uint256 lpSupply = pool.lpToken.balanceOf(address(this));
		if (lpSupply == 0 || pool.allocPoint == 0) {
			pool.lastRewardBlock = block.number;
			return;
		}
		uint256 multiplier = getMultiplier(pool.lastRewardBlock, block.number);
		uint256 dumplingReward = multiplier.mul(dumplingPerBlock).mul(pool.allocPoint).div(totalAllocPoint);
		if (isDumplerFeeEnabled) {
			uint256 totalFee = dumplingReward.div(10);
			uint256 dumplerFee = totalFee.div(10); //1% of the total dev fee
			uint256 dumplerMiniFee = totalFee.div(20); //0.5% of the total dev fee
			uint256 devFee = totalFee.sub(dumplerFee).sub(dumplerMiniFee); //remaining 8.5% to the dev address
			dumpling.mint(dumplerAddress, dumplerFee);
			dumpling.mint(dumplerMiniAddress, dumplerMiniFee);
			dumpling.mint(devAddress, devFee);
		} else {
			dumpling.mint(devAddress, dumplingReward.div(10));
		}
		dumpling.mint(address(this), dumplingReward);
		pool.accDumplingPerShare = pool.accDumplingPerShare.add(dumplingReward.mul(1e12).div(lpSupply));
		pool.lastRewardBlock = block.number;
	}

	// Deposit LP tokens to MasterChef for DUMP allocation.
	function deposit(
		uint256 _pid,
		uint256 _amount,
		address _referrer
	) public nonReentrant {
		PoolInfo storage pool = poolInfo[_pid];
		UserInfo storage user = userInfo[_pid][msg.sender];
		updatePool(_pid);
		if (_amount > 0 && address(dumplingReferral) != address(0) && _referrer != address(0) && _referrer != msg.sender) {
			dumplingReferral.recordReferral(msg.sender, _referrer);
		}
		payOrLockupPendingDumpling(_pid);
		if (_amount > 0) {
			pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount);
			if (address(pool.lpToken) == address(dumpling)) {
				uint256 transferTax = _amount.mul(dumpling.transferTaxRate()).div(10000);
				_amount = _amount.sub(transferTax);
			}
			if (pool.depositFeeBP > 0) {
				uint256 depositFee = _amount.mul(pool.depositFeeBP).div(10000);
				uint256 teamFee = depositFee.div(20); //5% for the team
				pool.lpToken.safeTransfer(feeAddress, depositFee - teamFee);
				pool.lpToken.safeTransfer(teamAddress, teamFee);
				user.amount = user.amount.add(_amount).sub(depositFee);
			} else {
				user.amount = user.amount.add(_amount);
			}
		}
		user.rewardDebt = user.amount.mul(pool.accDumplingPerShare).div(1e12);
		emit Deposit(msg.sender, _pid, _amount);
	}

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

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

	// Pay or lockup pending DUMPs.
	function payOrLockupPendingDumpling(uint256 _pid) internal {
		PoolInfo storage pool = poolInfo[_pid];
		UserInfo storage user = userInfo[_pid][msg.sender];

		if (user.nextHarvestUntil == 0) {
			user.nextHarvestUntil = block.timestamp.add(pool.harvestInterval);
		}

		uint256 pending = user.amount.mul(pool.accDumplingPerShare).div(1e12).sub(user.rewardDebt);
		if (canHarvest(_pid, msg.sender)) {
			if (pending > 0 || user.rewardLockedUp > 0) {
				uint256 totalRewards = pending.add(user.rewardLockedUp);

				// reset lockup
				totalLockedUpRewards = totalLockedUpRewards.sub(user.rewardLockedUp);
				user.rewardLockedUp = 0;
				user.nextHarvestUntil = block.timestamp.add(pool.harvestInterval);

				// send rewards
				safeDumplingTransfer(msg.sender, totalRewards);
				payReferralCommission(msg.sender, totalRewards);
			}
		} else if (pending > 0) {
			user.rewardLockedUp = user.rewardLockedUp.add(pending);
			totalLockedUpRewards = totalLockedUpRewards.add(pending);
			emit RewardLockedUp(msg.sender, _pid, pending);
		}
	}

	// Safe dumpling transfer function, just in case if rounding error causes pool to not have enough DUMPs.
	function safeDumplingTransfer(address _to, uint256 _amount) internal {
		uint256 dumplingBal = dumpling.balanceOf(address(this));
		if (_amount > dumplingBal) {
			dumpling.transfer(_to, dumplingBal);
		} else {
			dumpling.transfer(_to, _amount);
		}
	}

	// Update dev address by the previous dev.
	function setDevAddress(address _devAddress) public {
		require(msg.sender == feeAddress, "setDevAddress: FORBIDDEN");
		require(_devAddress != address(0), "setDevAddress: ZERO");
		devAddress = _devAddress;
	}

	function setFeeAddress(address _feeAddress) public {
		require(msg.sender == feeAddress, "setFeeAddress: FORBIDDEN");
		require(_feeAddress != address(0), "setFeeAddress: ZERO");
		feeAddress = _feeAddress;
	}

	function setTeamAddress(address _teamAddress) public {
		require(msg.sender == feeAddress, "setTeamAddress: FORBIDDEN");
		require(_teamAddress != address(0), "setTeamAddress: ZERO");
		teamAddress = _teamAddress;
	}

	function setDumplerAddress(address _dumplerAddress) public {
		require(msg.sender == feeAddress, "setDumplerAddress: FORBIDDEN");
		require(_dumplerAddress != address(0), "setDumplerAddress: ZERO");
		dumplerAddress = _dumplerAddress;
	}

	function setDumplerMiniAddress(address _dumplerMiniAddress) public {
		require(msg.sender == feeAddress, "setDumplerMiniAddress: FORBIDDEN");
		require(_dumplerMiniAddress != address(0), "setDumplerMiniAddress: ZERO");
		dumplerMiniAddress = _dumplerMiniAddress;
	}

	// Pancake has to add hidden dummy pools in order to alter the emission, here we make it simple and transparent to all.
	function updateEmissionRate(uint256 _dumplingPerBlock) public onlyOwner {
		massUpdatePools();
		emit EmissionRateUpdated(msg.sender, dumplingPerBlock, _dumplingPerBlock);
		dumplingPerBlock = _dumplingPerBlock;
	}

	// Update the dumpling referral contract address by the owner
	function setDumplingReferral(IDumplingReferral _dumplingReferral) public onlyOwner {
		dumplingReferral = _dumplingReferral;
	}

	// Update referral commission rate by the owner
	function setReferralCommissionRate(uint16 _referralCommissionRate) public onlyOwner {
		require(
			_referralCommissionRate <= MAXIMUM_REFERRAL_COMMISSION_RATE,
			"setReferralCommissionRate: invalid referral commission rate basis points"
		);
		referralCommissionRate = _referralCommissionRate;
	}

	// Pay referral commission to the referrer who referred this user.
	function payReferralCommission(address _user, uint256 _pending) internal {
		if (address(dumplingReferral) != address(0) && referralCommissionRate > 0) {
			address referrer = dumplingReferral.getReferrer(_user);
			uint256 commissionAmount = _pending.mul(referralCommissionRate).div(10000);

			if (referrer != address(0) && commissionAmount > 0) {
				dumpling.mint(referrer, commissionAmount);
				dumplingReferral.recordReferralCommission(referrer, commissionAmount);
				emit ReferralCommissionPaid(_user, referrer, commissionAmount);
			}
		}
	}

	function setStartBlock(uint256 _startBlock) external {
		require(block.number < startBlock, "It's too late to postpone mining. It has already started");
		startBlock = _startBlock;
	}

	function setIsDumplerFeeEnabled(bool _isDumplerFeeEnabled) external onlyOwner {
		isDumplerFeeEnabled = _isDumplerFeeEnabled;
	}
}

File 2 of 16 : SpaceDumplingToken.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./libs/BEP20.sol";

import "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol";

// DumplingToken with Governance.
contract SpaceDumplingToken is BEP20 {
	// Transfer tax rate in basis points. (default 5%)
	uint16 public transferTaxRate = 500;
	// Burn rate % of transfer tax. (default 20% x 5% = 1% of total amount).
	uint16 public burnRate = 20;
	// Max transfer tax rate: 10%.
	uint16 public constant MAXIMUM_TRANSFER_TAX_RATE = 1000;
	// Burn address
	address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;

	// Max transfer amount rate in basis points. (default is 1% of total supply)
	uint16 public maxTransferAmountRate = 100;
	// Addresses that excluded from antiWhale
	mapping(address => bool) private _excludedFromAntiWhale;
	// Automatic swap and liquify enabled
	bool public swapAndLiquifyEnabled = false;
	// Min amount to liquify. (default 500 SDUMPs)
	uint256 public minAmountToLiquify = 500 ether;
	// The swap router, modifiable. Will be changed to DumplingSwap's router when our own AMM release
	IUniswapV2Router02 public dumplingSwapRouter;
	// The trading pair
	address public dumplingSwapPair;
	// In swap and liquify
	bool private _inSwapAndLiquify;
	// Liquidity divider to calcualte antiWhale fee (20% initially)
	uint256 public liquidityDivider = 5;
	// Liquidity address, if not set it will be operator, timelock after start
	address public liquidityAddress = 0x000000000000000000000000000000000000dEaD;

	// The operator can only 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 DumplingSwapRouterUpdated(address indexed operator, address indexed router, address indexed pair);
	event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity);

	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 && amount >= maxTransferAmount()) {
				uint256 liquidityAmount = amount / liquidityDivider;
				super._transfer(sender, address(this), liquidityAmount);
			}
		}
		_;
	}

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

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

	/**
	 * @notice Constructs the DumplingToken contract.
	 */
	constructor() public BEP20("Space Dumpling", "SDUMP") {
		_operator = _msgSender();
		emit OperatorTransferred(address(0), _operator);

		_excludedFromAntiWhale[msg.sender] = true;
		_excludedFromAntiWhale[address(0)] = true;
		_excludedFromAntiWhale[address(this)] = true;
		_excludedFromAntiWhale[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 SDUMP
	function _transfer(
		address sender,
		address recipient,
		uint256 amount
	) internal virtual override antiWhale(sender, recipient, amount) {
		// swap and liquify
		if (
			swapAndLiquifyEnabled == true &&
			_inSwapAndLiquify == false &&
			address(dumplingSwapRouter) != address(0) &&
			dumplingSwapPair != address(0) &&
			sender != dumplingSwapPair &&
			sender != owner()
		) {
			swapAndLiquify();
		}

		if (recipient == BURN_ADDRESS || transferTaxRate == 0) {
			super._transfer(sender, recipient, amount);
		} else {
			// default tax is 5% of every transfer
			uint256 taxAmount = amount.mul(transferTaxRate).div(10000);
			uint256 burnAmount = taxAmount.mul(burnRate).div(100);
			uint256 liquidityAmount = taxAmount.sub(burnAmount);
			require(taxAmount == burnAmount + liquidityAmount, "SDUMP::transfer: Burn value invalid");

			// default 95% of transfer sent to recipient
			uint256 sendAmount = amount.sub(taxAmount);
			require(amount == sendAmount + taxAmount, "SDUMP::transfer: Tax value invalid");

			super._transfer(sender, BURN_ADDRESS, burnAmount);
			super._transfer(sender, address(this), liquidityAmount);
			super._transfer(sender, recipient, sendAmount);
			amount = sendAmount;
		}
	}

	/// @dev Swap and liquify
	function swapAndLiquify() private lockTheSwap transferTaxFree {
		uint256 contractTokenBalance = balanceOf(address(this));
		uint256 maxTransferAmount = maxTransferAmount();
		contractTokenBalance = contractTokenBalance > maxTransferAmount ? maxTransferAmount : contractTokenBalance;

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

			// split the liquify amount into halves
			uint256 half = liquifyAmount.div(2);
			uint256 otherHalf = liquifyAmount.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);
		}
	}

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

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

		// make the swap
		dumplingSwapRouter.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(dumplingSwapRouter), tokenAmount);
		address liquidityAddressTarget = operator();
		if (liquidityAddress != BURN_ADDRESS) {
			liquidityAddressTarget = liquidityAddress;
		}
		// add the liquidity
		dumplingSwapRouter.addLiquidityETH{value: ethAmount}(
			address(this),
			tokenAmount,
			0, // slippage is unavoidable
			0, // slippage is unavoidable
			liquidityAddressTarget,
			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];
	}

	// To receive BNB from dumplingSwapRouter 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, "SDUMP::updateTransferTaxRate: Transfer tax rate must not exceed the maximum rate.");
		emit TransferTaxRateUpdated(msg.sender, transferTaxRate, _transferTaxRate);
		transferTaxRate = _transferTaxRate;
	}

	/**
	 * @dev Update the burn rate.
	 * Can only be called by the current operator.
	 */
	function updateBurnRate(uint16 _burnRate) public onlyOperator {
		require(_burnRate <= 100, "SDUMP::updateBurnRate: Burn rate must not exceed the maximum rate.");
		emit BurnRateUpdated(msg.sender, burnRate, _burnRate);
		burnRate = _burnRate;
	}

	/**
	 * @dev Update the max transfer amount rate.
	 * Can only be called by the current operator.
	 */
	function updateMaxTransferAmountRate(uint16 _maxTransferAmountRate) public onlyOperator {
		require(_maxTransferAmountRate <= 10000, "SDUMP::updateMaxTransferAmountRate: Max transfer amount rate must not exceed the maximum 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 Update the swapAndLiquifyEnabled.
	 * Can only be called by the current operator.
	 */
	function updateSwapAndLiquifyEnabled(bool _enabled) public onlyOperator {
		emit SwapAndLiquifyEnabledUpdated(msg.sender, _enabled);
		swapAndLiquifyEnabled = _enabled;
	}

	function updateLiquidityDivider(uint256 _liquidityDivider) public onlyOperator {
		liquidityDivider = _liquidityDivider;
	}

	function setLiquidityAddress(address _liquidityAddress) public onlyOperator {
		liquidityAddress = _liquidityAddress;
	}

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

	/**
	 * @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), "SDUMP::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 => uint256) 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, uint256 previousBalance, uint256 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,
		uint256 nonce,
		uint256 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), "SDUMP::delegateBySig: invalid signature");
		require(nonce == nonces[signatory]++, "SDUMP::delegateBySig: invalid nonce");
		require(now <= expiry, "SDUMP::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, uint256 blockNumber) external view returns (uint256) {
		require(blockNumber < block.number, "SDUMP::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 SDUMPs (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, "SDUMP::_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(uint256 n, string memory errorMessage) internal pure returns (uint32) {
		require(n < 2**32, errorMessage);
		return uint32(n);
	}

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

File 3 of 16 : BEP20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.4.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/GSN/Context.sol";
import "./IBEP20.sol";
import "@openzeppelin/contracts/math/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 view override returns (address) {
		return owner();
	}

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

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

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

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

	/**
	 * @dev See {BEP20-balanceOf}.
	 */
	function balanceOf(address account) public view override 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 view override 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 16 : IBEP20.sol
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 5 of 16 : IDumplingReferral.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

interface IDumplingReferral {
	/**
	 * @dev Record referral.
	 */
	function recordReferral(address user, address referrer) external;

	/**
	 * @dev Record referral commission.
	 */
	function recordReferralCommission(address referrer, uint256 commission) external;

	/**
	 * @dev Get the referrer address that referred the user.
	 */
	function getReferrer(address user) external view returns (address);
}

File 6 of 16 : SafeBEP20.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./IBEP20.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "@openzeppelin/contracts/utils/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 7 of 16 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/Context.sol";

File 8 of 16 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () 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 9 of 16 : 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;
    }
}

File 10 of 16 : 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 11 of 16 : 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 12 of 16 : 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 13 of 16 : IUniswapV2Factory.sol
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 14 of 16 : IUniswapV2Pair.sol
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 15 of 16 : IUniswapV2Router01.sol
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);
}

File 16 of 16 : IUniswapV2Router02.sol
pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

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;
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"contract SpaceDumplingToken","name":"_dumpling","type":"address"},{"internalType":"uint256","name":"_startBlock","type":"uint256"},{"internalType":"uint256","name":"_dumplingPerBlock","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":"caller","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newAmount","type":"uint256"}],"name":"EmissionRateUpdated","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":"referrer","type":"address"},{"indexed":false,"internalType":"uint256","name":"commissionAmount","type":"uint256"}],"name":"ReferralCommissionPaid","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":"amountLockedUp","type":"uint256"}],"name":"RewardLockedUp","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"},{"inputs":[],"name":"BONUS_MULTIPLIER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAXIMUM_HARVEST_INTERVAL","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAXIMUM_REFERRAL_COMMISSION_RATE","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"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":"uint256","name":"_harvestInterval","type":"uint256"},{"internalType":"bool","name":"_withUpdate","type":"bool"}],"name":"add","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"address","name":"_user","type":"address"}],"name":"canHarvest","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_referrer","type":"address"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"devAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dumplerAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dumplerMiniAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dumpling","outputs":[{"internalType":"contract SpaceDumplingToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dumplingPerBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"dumplingReferral","outputs":[{"internalType":"contract IDumplingReferral","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"feeAddress","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":"pure","type":"function"},{"inputs":[],"name":"isDumplerFeeEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"massUpdatePools","outputs":[],"stateMutability":"nonpayable","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":"pendingDumpling","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"accDumplingPerShare","type":"uint256"},{"internalType":"uint16","name":"depositFeeBP","type":"uint16"},{"internalType":"uint256","name":"harvestInterval","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"poolLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"referralCommissionRate","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"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":"uint256","name":"_harvestInterval","type":"uint256"},{"internalType":"bool","name":"_withUpdate","type":"bool"}],"name":"set","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_devAddress","type":"address"}],"name":"setDevAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_dumplerAddress","type":"address"}],"name":"setDumplerAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_dumplerMiniAddress","type":"address"}],"name":"setDumplerMiniAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IDumplingReferral","name":"_dumplingReferral","type":"address"}],"name":"setDumplingReferral","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_feeAddress","type":"address"}],"name":"setFeeAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isDumplerFeeEnabled","type":"bool"}],"name":"setIsDumplerFeeEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_referralCommissionRate","type":"uint16"}],"name":"setReferralCommissionRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_startBlock","type":"uint256"}],"name":"setStartBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_teamAddress","type":"address"}],"name":"setTeamAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"teamAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAllocPoint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalLockedUpRewards","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":"_dumplingPerBlock","type":"uint256"}],"name":"updateEmissionRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"updatePool","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"},{"internalType":"uint256","name":"rewardLockedUp","type":"uint256"},{"internalType":"uint256","name":"nextHarvestUntil","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)

00000000000000000000000013f6751ba11337bc67abbdad638a56194ee133b80000000000000000000000000000000000000000000000000000000000710d070000000000000000000000000000000000000000000000008ac7230489e80000

-----Decoded View---------------
Arg [0] : _dumpling (address): 0x13f6751ba11337bc67abbdad638a56194ee133b8
Arg [1] : _startBlock (uint256): 7408903
Arg [2] : _dumplingPerBlock (uint256): 10000000000000000000

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 00000000000000000000000013f6751ba11337bc67abbdad638a56194ee133b8
Arg [1] : 0000000000000000000000000000000000000000000000000000000000710d07
Arg [2] : 0000000000000000000000000000000000000000000000008ac7230489e80000


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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