[ANN] EFIRICA - Smart Game Contract

SHALARIBA (OP)

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[ANN] EFIRICA - Smart Game Contract

November 08, 2018, 09:27:08 PM
Last edit: November 09, 2018, 05:41:24 PM by SHALARIBA

#1

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Code:

pragma solidity ^0.4.24;

/*
* ETH SMART GAME DISTRIBUTION PROJECT
* Web: https://efirica.io
* Telegram_channel: https://t.me/efirica_io
* EN Telegram_chat: https://t.me/efirica_chat
* RU Telegram_chat: https://t.me/efirica_chat_ru
* Telegram Support: @efirica
*
* - GAIN 0.5-5% per 24 HOURS lifetime income without invitations
* - Life-long payments
* - New technologies on blockchain
* - Unique code (without admin, automatic % health for lifelong game, not fork !!! )
* - Minimal contribution 0.01 eth
* - Currency and payment - ETH
* - Contribution allocation schemes:
* -- 99% payments (In some cases, the included 10% marketing to players when specifying a referral link)
* -- 1% technical support
*
* --- About the Project
* EFIRICA - smart game contract, new technologies on blockchain ETH, have opened code allowing
* to work autonomously without admin for as long as possible with honest smart code.
*/

// File: openzeppelin-solidity/contracts/math/SafeMath.sol

/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {

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

   c = _a * _b;
   assert(c / _a == _b);
   return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 _a, uint256 _b) internal pure returns (uint256) {
   // assert(_b > 0); // Solidity automatically throws when dividing by 0
   // uint256 c = _a / _b;
   // assert(_a == _b * c + _a % _b); // There is no case in which this doesn't hold
   return _a / _b;
  }

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

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

// File: contracts/Efirica.sol

contract Efirica {
   using SafeMath for uint256;

   uint256 constant public ONE_HUNDRED_PERCENTS = 10000;
   uint256 constant public LOWEST_DIVIDEND_PERCENTS = 50; // 0.50%
   uint256 constant public HIGHEST_DIVIDEND_PERCENTS = 500; // 5.00%
   uint256 constant public REFERRAL_ACTIVATION_TIME = 1 days;
   uint256[] /*constant*/ public referralPercents = [500, 300, 200]; // 5%, 3%, 2%

   bool public running = true;
   address public admin = msg.sender;
   uint256 public totalDeposits = 0;
   mapping(address => uint256) public deposits;
   mapping(address => uint256) public withdrawals;
   mapping(address => uint256) public joinedAt;
   mapping(address => uint256) public updatedAt;
   mapping(address => address) public referrers;
   mapping(address => uint256) public refCount;
   mapping(address => uint256) public refEarned;

   event InvestorAdded(address indexed investor);
   event ReferrerAdded(address indexed investor, address indexed referrer);
   event DepositAdded(address indexed investor, uint256 deposit, uint256 amount);
   event DividendPayed(address indexed investor, uint256 dividend);
   event ReferrerPayed(address indexed investor, uint256 indexed level, address referrer, uint256 amount);
   event AdminFeePayed(address indexed investor, uint256 amount);
   event TotalDepositsChanged(uint256 totalDeposits);
   event BalanceChanged(uint256 balance);

   function() public payable {
   require(running, "Project is not running");

   // Dividends
   uint256 dividends = dividendsForUser(msg.sender);
   if (dividends > 0) {
   if (dividends >= address(this).balance) {
   dividends = address(this).balance;
   running = false;
   }
   msg.sender.transfer(dividends);
   withdrawals[msg.sender] = withdrawals[msg.sender].add(dividends);
   updatedAt[msg.sender] = now;
   emit DividendPayed(msg.sender, dividends);
   }

   // Deposit
   if (msg.value > 0) {
   if (deposits[msg.sender] == 0) {
   joinedAt[msg.sender] = now;
   emit InvestorAdded(msg.sender);
   }
   updatedAt[msg.sender] = now;
   deposits[msg.sender] = deposits[msg.sender].add(msg.value);
   emit DepositAdded(msg.sender, deposits[msg.sender], msg.value);

   totalDeposits = totalDeposits.add(msg.value);
   emit TotalDepositsChanged(totalDeposits);

   // Add referral if possible
   if (referrers[msg.sender] == address(0) && msg.data.length == 20) {
   address referrer = _bytesToAddress(msg.data);
   if (referrer != address(0) && deposits[referrer] > 0 && now >= joinedAt[referrer].add(REFERRAL_ACTIVATION_TIME)) {
   referrers[msg.sender] = referrer;
   refCount[referrer] += 1;
   emit ReferrerAdded(msg.sender, referrer);
   }
   }

   // Referrers fees
   referrer = referrers[msg.sender];
   for (uint i = 0; referrer != address(0) && i < referralPercents.length; i++) {
   uint256 refAmount = msg.value.mul(referralPercents[i]).div(ONE_HUNDRED_PERCENTS);
   referrer.send(refAmount); // solium-disable-line security/no-send
   refEarned[referrer] = refEarned[referrer].add(refAmount);
   emit ReferrerPayed(msg.sender, i, referrer, refAmount);
   referrer = referrers[referrer];
   }

   // Admin fee 1%
   uint256 adminFee = msg.value.div(100);
   admin.send(adminFee); // solium-disable-line security/no-send
   emit AdminFeePayed(msg.sender, adminFee);
   }

   emit BalanceChanged(address(this).balance);
   }

   function dividendsForUser(address user) public view returns(uint256) {
   return dividendsForPercents(user, percentsForUser(user));
   }

   function dividendsForPercents(address user, uint256 percents) public view returns(uint256) {
   return deposits[user]
   .mul(percents).div(ONE_HUNDRED_PERCENTS)
   .mul(now.sub(updatedAt[user])).div(1 days); // solium-disable-line security/no-block-members
   }

   function percentsForUser(address user) public view returns(uint256) {
   uint256 percents = generalPercents();

   // Referrals should have increased percents (+10%)
   if (referrers[user] != address(0)) {
   percents = percents.mul(110).div(100);
   }

   return percents;
   }

   function generalPercents() public view returns(uint256) {
   uint256 health = healthPercents();
   if (health >= ONE_HUNDRED_PERCENTS.mul(80).div(100)) { // health >= 80%
   return HIGHEST_DIVIDEND_PERCENTS;
   }

   // From 5% to 0.5% with 0.1% step (45 steps) while health drops from 100% to 0%
   uint256 percents = LOWEST_DIVIDEND_PERCENTS.add(
   HIGHEST_DIVIDEND_PERCENTS.sub(LOWEST_DIVIDEND_PERCENTS)
   .mul(healthPercents().mul(45).div(ONE_HUNDRED_PERCENTS.mul(80).div(100))).div(45)
   );

   return percents;
   }

   function healthPercents() public view returns(uint256) {
   if (totalDeposits == 0) {
   return ONE_HUNDRED_PERCENTS;
   }

   return address(this).balance
   .mul(ONE_HUNDRED_PERCENTS).div(totalDeposits);
   }

   function _bytesToAddress(bytes data) internal pure returns(address addr) {
   // solium-disable-next-line security/no-inline-assembly
   assembly {
   addr := mload(add(data, 0x14))
   }
   }
}