ETH Price: $3,428.88 (-2.50%)
Gas: 3 Gwei

Contract

0x781a0861395Ba245e8254a61e74B0e7cD3Ac8eAf
 
Transaction Hash
Method
Block
From
To
Exit195189472024-03-26 13:35:35118 days ago1711460135IN
0x781a0861...cD3Ac8eAf
0 ETH0.011496739.33308848
Get Reward195189222024-03-26 13:30:35118 days ago1711459835IN
0x781a0861...cD3Ac8eAf
0 ETH0.010043940.25952671
Withdraw181935252023-09-22 19:41:47304 days ago1695411707IN
0x781a0861...cD3Ac8eAf
0 ETH0.0024414111.97013263
Seize167860312023-03-08 20:53:47502 days ago1678308827IN
0x781a0861...cD3Ac8eAf
0 ETH0.0013113841.36091032
Seize167860292023-03-08 20:53:23502 days ago1678308803IN
0x781a0861...cD3Ac8eAf
0 ETH0.0014186444.86260826
Set Governance167859892023-03-08 20:44:59502 days ago1678308299IN
0x781a0861...cD3Ac8eAf
0 ETH0.0018539164.80621779
Get Reward166501132023-02-17 18:10:11521 days ago1676657411IN
0x781a0861...cD3Ac8eAf
0 ETH0.0030963555.47142861
Get Reward166501112023-02-17 18:09:47521 days ago1676657387IN
0x781a0861...cD3Ac8eAf
0 ETH0.0141634254.76667607
Withdraw166499962023-02-17 17:46:35521 days ago1676655995IN
0x781a0861...cD3Ac8eAf
0 ETH0.0108410771.98684595
Stake166325652023-02-15 7:09:59523 days ago1676444999IN
0x781a0861...cD3Ac8eAf
0 ETH0.0145904122.50045248
Stake166325652023-02-15 7:09:59523 days ago1676444999IN
0x781a0861...cD3Ac8eAf
0 ETH0.0089088720.57757332
Exit162490312022-12-23 17:51:23577 days ago1671817883IN
0x781a0861...cD3Ac8eAf
0 ETH0.0082185223.1022273
Get Reward160907102022-12-01 15:00:11599 days ago1669906811IN
0x781a0861...cD3Ac8eAf
0 ETH0.0025402511.34592578
Withdraw160907072022-12-01 14:59:35599 days ago1669906775IN
0x781a0861...cD3Ac8eAf
0 ETH0.0020803110.97520745
Exit144985102022-04-01 5:36:27843 days ago1648791387IN
0x781a0861...cD3Ac8eAf
0 ETH0.0144745739.54466177
Exit143074722022-03-02 12:07:39873 days ago1646222859IN
0x781a0861...cD3Ac8eAf
0 ETH0.0106978533.99048458
Exit139916472022-01-12 16:00:35922 days ago1642003235IN
0x781a0861...cD3Ac8eAf
0 ETH0.06134964175.82169758
Stake134826022021-10-24 21:41:441002 days ago1635111704IN
0x781a0861...cD3Ac8eAf
0 ETH0.0367119384.79898054
Stake134689102021-10-22 18:04:361004 days ago1634925876IN
0x781a0861...cD3Ac8eAf
0 ETH0.0173397887.06852623
Get Reward129119022021-07-28 2:54:481091 days ago1627440888IN
0x781a0861...cD3Ac8eAf
0 ETH0.002911526
Withdraw128644842021-07-20 16:24:171098 days ago1626798257IN
0x781a0861...cD3Ac8eAf
0 ETH0.0056099334
Stake128567992021-07-19 11:45:371099 days ago1626695137IN
0x781a0861...cD3Ac8eAf
0 ETH0.0069984916.5
Get Reward127523112021-07-03 3:40:491116 days ago1625283649IN
0x781a0861...cD3Ac8eAf
0 ETH0.0025437910
Get Reward126326082021-06-14 12:39:001134 days ago1623674340IN
0x781a0861...cD3Ac8eAf
0 ETH0.0005581910
Get Reward126326082021-06-14 12:39:001134 days ago1623674340IN
0x781a0861...cD3Ac8eAf
0 ETH0.0023717710
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Contract Source Code Verified (Exact Match)

Contract Name:
UniswapReward

Compiler Version
v0.5.5+commit.47a71e8f

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2020-09-16
*/

/***
 *    ██████╗ ███████╗ ██████╗  ██████╗ 
 *    ██╔══██╗██╔════╝██╔════╝ ██╔═══██╗
 *    ██║  ██║█████╗  ██║  ███╗██║   ██║
 *    ██║  ██║██╔══╝  ██║   ██║██║   ██║
 *    ██████╔╝███████╗╚██████╔╝╚██████╔╝
 *    ╚═════╝ ╚══════╝ ╚═════╝  ╚═════╝ 
 *    
 * https://dego.finance
                                  
* MIT License
* ===========
*
* Copyright (c) 2020 dego
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/
// File: @openzeppelin/contracts/math/Math.sol

pragma solidity ^0.5.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);
    }
}

// File: @openzeppelin/contracts/math/SafeMath.sol

pragma solidity ^0.5.0;

/**
 * @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, 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) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     *
     * _Available since v2.4.0._
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @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) {
        // 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 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts 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) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message 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.
     *
     * _Available since v2.4.0._
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts 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) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message 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.
     *
     * _Available since v2.4.0._
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// File: @openzeppelin/contracts/GSN/Context.sol

pragma solidity ^0.5.0;

/*
 * @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.
 */
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor () internal { }
    // solhint-disable-previous-line no-empty-blocks

    function _msgSender() internal view returns (address payable) {
        return msg.sender;
    }

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

// File: @openzeppelin/contracts/ownership/Ownable.sol

pragma solidity ^0.5.0;

/**
 * @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.
 *
 * 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.
 */
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 returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Returns true if the caller is the current owner.
     */
    function isOwner() public view returns (bool) {
        return _msgSender() == _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 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 onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// File: contracts/interface/IERC20.sol

pragma solidity ^0.5.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP. Does not include
 * the optional functions; to access them see {ERC20Detailed}.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @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);
    function mint(address account, uint amount) external;
    /**
     * @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: contracts/interface/IPlayerBook.sol

pragma solidity ^0.5.0;


interface IPlayerBook {
    function settleReward( address from,uint256 amount ) external returns (uint256);
    function bindRefer( address from,string calldata  affCode )  external returns (bool);
    function hasRefer(address from) external returns(bool);

}

// File: contracts/interface/IPool.sol

pragma solidity ^0.5.0;


interface IPool {
    function totalSupply( ) external view returns (uint256);
    function balanceOf( address player ) external view returns (uint256);
}

// File: @openzeppelin/contracts/utils/Address.sol

pragma solidity ^0.5.5;

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Converts an `address` into `address payable`. Note that this is
     * simply a type cast: the actual underlying value is not changed.
     *
     * _Available since v2.4.0._
     */
    function toPayable(address account) internal pure returns (address payable) {
        return address(uint160(account));
    }

    /**
     * @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].
     *
     * _Available since v2.4.0._
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-call-value
        (bool success, ) = recipient.call.value(amount)("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}

// File: contracts/library/SafeERC20.sol

pragma solidity ^0.5.0;





/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 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 SafeERC20 for ERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        (bool success, bytes memory data) = address(token).call(abi.encodeWithSelector(SELECTOR, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'SafeERC20: TRANSFER_FAILED');
    }
    // function safeTransfer(IERC20 token, address to, uint256 value) internal {
    //     callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    // }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    function safeApprove(IERC20 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),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 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(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: 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(IERC20 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.

        // A Solidity high level call has three parts:
        //  1. The target address is checked to verify it contains contract code
        //  2. The call itself is made, and success asserted
        //  3. The return value is decoded, which in turn checks the size of the returned data.
        // solhint-disable-next-line max-line-length
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "SafeERC20: low-level call failed");

        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// File: contracts/library/DegoMath.sol

pragma solidity ^0.5.0;


library DegoMath {
  /**
   * Calculate sqrt (x) rounding down, where x is unsigned 256-bit integer
   * number.
   *
   * @param x unsigned 256-bit integer number
   * @return unsigned 128-bit integer number
   */
    function sqrt(uint256 x) public pure returns (uint256 y)  {
        uint256 z = (x + 1) / 2;
        y = x;
        while (z < y) {
            y = z;
            z = (x / z + z) / 2;
        }
    }

}

// File: contracts/library/Governance.sol

pragma solidity ^0.5.0;

contract Governance {

    address public _governance;

    constructor() public {
        _governance = tx.origin;
    }

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

    modifier onlyGovernance {
        require(msg.sender == _governance, "not governance");
        _;
    }

    function setGovernance(address governance)  public  onlyGovernance
    {
        require(governance != address(0), "new governance the zero address");
        emit GovernanceTransferred(_governance, governance);
        _governance = governance;
    }


}

// File: contracts/interface/IPowerStrategy.sol

pragma solidity ^0.5.0;


interface IPowerStrategy {
    function lpIn(address sender, uint256 amount) external;
    function lpOut(address sender, uint256 amount) external;
    
    function getPower(address sender) view  external returns (uint256);
}

// File: contracts/library/LPTokenWrapper.sol

pragma solidity ^0.5.0;










contract LPTokenWrapper is IPool,Governance {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;

    IERC20 public _lpToken = IERC20(0xdAC17F958D2ee523a2206206994597C13D831ec7);

    address public _playerBook = address(0x4cc945E7b97fED1EAD961Cd83eD622Fe48BBf3a0);

    uint256 private _totalSupply;
    mapping(address => uint256) private _balances;

    uint256 private _totalPower;
    mapping(address => uint256) private _powerBalances;
    
    address public _powerStrategy = address(0x0);


    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    function setPowerStragegy(address strategy)  public  onlyGovernance{
        _powerStrategy = strategy;
    }

    function balanceOf(address account) public view returns (uint256) {
        return _balances[account];
    }

    function balanceOfPower(address account) public view returns (uint256) {
        return _powerBalances[account];
    }



    function totalPower() public view returns (uint256) {
        return _totalPower;
    }


    function stake(uint256 amount, string memory affCode) public {
        _totalSupply = _totalSupply.add(amount);
        _balances[msg.sender] = _balances[msg.sender].add(amount);

        if( _powerStrategy != address(0x0)){ 
            _totalPower = _totalPower.sub(_powerBalances[msg.sender]);
            IPowerStrategy(_powerStrategy).lpIn(msg.sender, amount);

            _powerBalances[msg.sender] = IPowerStrategy(_powerStrategy).getPower(msg.sender);
            _totalPower = _totalPower.add(_powerBalances[msg.sender]);
        }else{
            _totalPower = _totalSupply;
            _powerBalances[msg.sender] = _balances[msg.sender];
        }

        _lpToken.safeTransferFrom(msg.sender, address(this), amount);


        if (!IPlayerBook(_playerBook).hasRefer(msg.sender)) {
            IPlayerBook(_playerBook).bindRefer(msg.sender, affCode);
        }

        
    }

    function withdraw(uint256 amount) public {
        require(amount > 0, "amout > 0");

        _totalSupply = _totalSupply.sub(amount);
        _balances[msg.sender] = _balances[msg.sender].sub(amount);
        
        if( _powerStrategy != address(0x0)){ 
            _totalPower = _totalPower.sub(_powerBalances[msg.sender]);
            IPowerStrategy(_powerStrategy).lpOut(msg.sender, amount);
            _powerBalances[msg.sender] = IPowerStrategy(_powerStrategy).getPower(msg.sender);
            _totalPower = _totalPower.add(_powerBalances[msg.sender]);

        }else{
            _totalPower = _totalSupply;
            _powerBalances[msg.sender] = _balances[msg.sender];
        }

        _lpToken.safeTransfer( msg.sender, amount);
    }

    
}

// File: contracts/reward/UniswapReward.sol

pragma solidity ^0.5.0;








contract UniswapReward is LPTokenWrapper{
    using SafeERC20 for IERC20;

    IERC20 public _dego = IERC20(0x88EF27e69108B2633F8E1C184CC37940A075cC02);
    address public _teamWallet = 0x3D0a845C5ef9741De999FC068f70E2048A489F2b;
    address public _rewardPool = 0xEA6dEc98e137a87F78495a8386f7A137408f7722;

    uint256 public constant DURATION = 7 days;

    uint256 public _initReward = 525000 * 1e18;
    uint256 public _startTime =  now + 365 days;
    uint256 public _periodFinish = 0;
    uint256 public _rewardRate = 0;
    uint256 public _lastUpdateTime;
    uint256 public _rewardPerTokenStored;

    uint256 public _teamRewardRate = 500;
    uint256 public _poolRewardRate = 1000;
    uint256 public _baseRate = 10000;
    uint256 public _punishTime = 3 days;

    mapping(address => uint256) public _userRewardPerTokenPaid;
    mapping(address => uint256) public _rewards;
    mapping(address => uint256) public _lastStakedTime;

    bool public _hasStart = false;

    event RewardAdded(uint256 reward);
    event Staked(address indexed user, uint256 amount);
    event Withdrawn(address indexed user, uint256 amount);
    event RewardPaid(address indexed user, uint256 reward);


    modifier updateReward(address account) {
        _rewardPerTokenStored = rewardPerToken();
        _lastUpdateTime = lastTimeRewardApplicable();
        if (account != address(0)) {
            _rewards[account] = earned(account);
            _userRewardPerTokenPaid[account] = _rewardPerTokenStored;
        }
        _;
    }

    /* Fee collection for any other token */
    function seize(IERC20 token, uint256 amount) external onlyGovernance{
        require(token != _dego, "reward");
        require(token != _lpToken, "stake");
        token.safeTransfer(_governance, amount);
    }

    function setTeamRewardRate( uint256 teamRewardRate ) public onlyGovernance{
        _teamRewardRate = teamRewardRate;
    }

    function setPoolRewardRate( uint256  poolRewardRate ) public onlyGovernance{
        _poolRewardRate = poolRewardRate;
    }

    function setWithDrawPunishTime( uint256  punishTime ) public onlyGovernance{
        _punishTime = punishTime;
    }

    function lastTimeRewardApplicable() public view returns (uint256) {
        return Math.min(block.timestamp, _periodFinish);
    }

    function rewardPerToken() public view returns (uint256) {
        if (totalPower() == 0) {
            return _rewardPerTokenStored;
        }
        return
            _rewardPerTokenStored.add(
                lastTimeRewardApplicable()
                    .sub(_lastUpdateTime)
                    .mul(_rewardRate)
                    .mul(1e18)
                    .div(totalPower())
            );
    }

    function earned(address account) public view returns (uint256) {
        return
            balanceOfPower(account)
                .mul(rewardPerToken().sub(_userRewardPerTokenPaid[account]))
                .div(1e18)
                .add(_rewards[account]);
    }

    // stake visibility is public as overriding LPTokenWrapper's stake() function
    function stake(uint256 amount, string memory affCode)
        public
        updateReward(msg.sender)
        checkHalve
        checkStart
    {
        require(amount > 0, "Cannot stake 0");
        super.stake(amount, affCode);

        _lastStakedTime[msg.sender] = now;

        emit Staked(msg.sender, amount);
    }

    function withdraw(uint256 amount)
        public
        updateReward(msg.sender)
        checkHalve
        checkStart
    {
        require(amount > 0, "Cannot withdraw 0");
        super.withdraw(amount);
        emit Withdrawn(msg.sender, amount);
    }

    function exit() external {
        withdraw(balanceOf(msg.sender));
        getReward();
    }

    function getReward() public updateReward(msg.sender) checkHalve checkStart {
        uint256 reward = earned(msg.sender);
        if (reward > 0) {
            _rewards[msg.sender] = 0;

            uint256 fee = IPlayerBook(_playerBook).settleReward(msg.sender, reward);
            if(fee > 0){
                _dego.safeTransfer(_playerBook, fee);
            }
            
            uint256 teamReward = reward.mul(_teamRewardRate).div(_baseRate);
            if(teamReward>0){
                _dego.safeTransfer(_teamWallet, teamReward);
            }
            uint256 leftReward = reward.sub(fee).sub(teamReward);
            uint256 poolReward = 0;

            //withdraw time check

            if(now  < (_lastStakedTime[msg.sender] + _punishTime) ){
                poolReward = leftReward.mul(_poolRewardRate).div(_baseRate);
            }
            if(poolReward>0){
                _dego.safeTransfer(_rewardPool, poolReward);
                leftReward = leftReward.sub(poolReward);
            }

            if(leftReward>0){
                _dego.safeTransfer(msg.sender, leftReward );
            }
      
            emit RewardPaid(msg.sender, leftReward);
        }
    }

    modifier checkHalve() {
        if (block.timestamp >= _periodFinish) {
            _initReward = _initReward.mul(50).div(100);

            _dego.mint(address(this), _initReward);

            _rewardRate = _initReward.div(DURATION);
            _periodFinish = block.timestamp.add(DURATION);
            emit RewardAdded(_initReward);
        }
        _;
    }
    
    modifier checkStart() {
        require(block.timestamp > _startTime, "not start");
        _;
    }

    // set fix time to start reward
    function startReward(uint256 startTime)
        external
        onlyGovernance
        updateReward(address(0))
    {
        require(_hasStart == false, "has started");
        _hasStart = true;
        
        _startTime = startTime;

        _rewardRate = _initReward.div(DURATION); 
        _dego.mint(address(this), _initReward);

        _lastUpdateTime = _startTime;
        _periodFinish = _startTime.add(DURATION);

        emit RewardAdded(_initReward);
    }

    //

    //for extra reward
    function notifyRewardAmount(uint256 reward)
        external
        onlyGovernance
        updateReward(address(0))
    {
        IERC20(_dego).safeTransferFrom(msg.sender, address(this), reward);
        if (block.timestamp >= _periodFinish) {
            _rewardRate = reward.div(DURATION);
        } else {
            uint256 remaining = _periodFinish.sub(block.timestamp);
            uint256 leftover = remaining.mul(_rewardRate);
            _rewardRate = reward.add(leftover).div(DURATION);
        }
        _lastUpdateTime = block.timestamp;
        _periodFinish = block.timestamp.add(DURATION);
        emit RewardAdded(reward);
    }
}

Contract Security Audit

Contract ABI

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.