creation_sourcecode: // SPDX-License-Identifier: MIT
  
  pragma solidity ^0.8.0;
  
  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);
              }
          }
      }
  }
  
  
  
  
  library SafeERC20 {
      using SafeMath for uint256;
      using Address for address;
  
      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));
      }
  
      /**
       * @dev Deprecated. This function has issues similar to the ones found in
       * {IERC20-approve}, and its usage is discouraged.
       *
       * Whenever possible, use {safeIncreaseAllowance} and
       * {safeDecreaseAllowance} instead.
       */
       
      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. 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, "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");
          }
      }
  }
  contract Context {
  
      function _msgSender() internal view virtual returns (address payable) {
          return payable(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;
      }
  }
  
  
  interface IERC20 {
      function totalSupply() external view returns (uint256);
      function balanceOf(address account) external view returns (uint256);
      function transfer(address recipient, uint256 amount) external returns (bool);
      function allowance(address owner, address spender) external view returns (uint256);
      function approve(address spender, uint256 amount) external returns (bool);
      function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
      event Transfer(address indexed from, address indexed to, uint256 value);
      event Approval(address indexed owner, address indexed spender, uint256 value);
  }
  
  
  library SafeMath {
      function add(uint256 a, uint256 b) internal pure returns (uint256) 
      
      {
          uint256 c = a + b;
          require(c >= a, "SafeMath: addition overflow");
  
          return c;
      }
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return sub(a, b, "SafeMath: subtraction overflow");
      }
      function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b <= a, errorMessage);
          uint256 c = a - b;
  
          return c;
      }
      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;
      }
  
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return div(a, b, "SafeMath: division by zero");
      }
  
      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;
      }
  
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
          return mod(a, b, "SafeMath: modulo by zero");
      }
      function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b != 0, errorMessage);
          return a % b;
      }
  }
  
  contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      constructor ()  {
          address msgSender = _msgSender();
          _owner = msgSender;
          emit OwnershipTransferred(address(0), msgSender);
      }
  
      function owner() public view returns (address) {
          return _owner;
      }
      modifier onlyOwner() {
          require(_owner == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
      function renounceOwnership() public virtual onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          emit OwnershipTransferred(_owner, newOwner);
          _owner = newOwner;
      }
  }
  
  
  // ETH LIVE PRICE
  
  interface AggregatorV3Interface {
      function decimals() external view returns (uint8);
  
      function description() external view returns (string memory);
  
      function version() external view returns (uint256);
  
      function getRoundData(uint80 _roundId)
          external
          view
          returns (
              uint80 roundId,
              int256 answer,
              uint256 startedAt,
              uint256 updatedAt,
              uint80 answeredInRound
          );
  
      function latestRoundData()
          external
          view
          returns (
              uint80 roundId,
              int256 answer,
              uint256 startedAt,
              uint256 updatedAt,
              uint80 answeredInRound
          );
  }
  
  
  contract CryptoEmpireTycoonPresale is Ownable {
      using SafeMath for uint256;
      using SafeERC20 for IERC20;
  
      IERC20 public USDT;
  
  
      address payable public paymentReceiver;
      AggregatorV3Interface public priceFeedETH;
  
      uint256 public TokenPricePerUsdt;
      uint256 public TokenSold;
      uint256 public maxTokeninPresale;
      uint256 public totalBoughtAndStaked;
      address private nullAddress=0x0000000000000000000000000000000000000000;
      uint256 public referalPercent=10;
      uint256 public Treferralrewards;
  
      mapping(address => bool) public isBlacklist;
      bool public presaleStatus;
      bool public CanClaim;
  
      mapping(address => uint256) public TokenBought;
      mapping(address => uint256) public Claimable;
      address[] public buyers;
      mapping(address =>bool) public isbought;
      event Recovered(address token, uint256 amount);
  
      struct Phase {
          uint256 maxTokens;
          uint256 price;
      }
  
      Phase[] public phases;
      uint256 public currentPhase = 0;
  
      constructor(address payable _paymentReceiver,IERC20 _USDT,address _priceFeedETH) {
          
          USDT=_USDT;
          paymentReceiver = _paymentReceiver;
          phases.push(Phase(50000000000 * 1E18, 125 * 1E17));           
          // Set initial parameters
          maxTokeninPresale = getTotalMaxTokens();
          TokenPricePerUsdt = getCurrentPhasePrice();
          priceFeedETH = AggregatorV3Interface(_priceFeedETH);
      }
  
      function getTotalMaxTokens() internal view returns (uint256) {
          uint256 totalMaxTokens;
          for (uint256 i = 0; i < phases.length; i++) {
              totalMaxTokens = totalMaxTokens.add(phases[i].maxTokens);
          }
          return totalMaxTokens;
      }
  
      function getCurrentPhasePrice() internal view returns (uint256) {
          return phases[currentPhase].price;
      }
  
  
  
      function getLatestPriceETH() public view returns (uint256) {
          (, int256 price, , , ) = priceFeedETH.latestRoundData();
          return uint256(price * 1e10);
      }
  
      receive() external payable {}
  
      function BuyWithETH(address _ref) external payable {
          require(presaleStatus == true, "Presale: Presale is not started");
          require(msg.value > 0, "Presale: Unsuitable Amount");
          require(isBlacklist[msg.sender] == false, "Presale: You are blacklisted");
          require(tx.origin == msg.sender, "Presale: Caller is a contract");
  
          uint256 tokensToBuy = ETHToToken(msg.value);
          require(TokenSold.add(tokensToBuy) <= maxTokeninPresale, "Presale: Hardcap Reached!");
          uint256 referETHamt;
          if(_ref!=address(0))
          {
          if(referalPercent!=0)
          {
           referETHamt=  msg.value*referalPercent/100; 
          payable(_ref).transfer(referETHamt);
          }
          }
          uint256 referUSDTamt= (referETHamt * (getLatestPriceETH())) / (1e30);
          Treferralrewards+=referUSDTamt;
          
          uint256 remaining=msg.value-referETHamt;
           
  
          payable(paymentReceiver).transfer(remaining);
          TokenBought[msg.sender] += tokensToBuy;
          Claimable[msg.sender] += tokensToBuy;
          TokenSold = TokenSold.add(tokensToBuy);
        
          if (TokenSold >= phases[currentPhase].maxTokens && currentPhase < phases.length - 1) {
              currentPhase++;
              maxTokeninPresale = getTotalMaxTokens();
              TokenPricePerUsdt = getCurrentPhasePrice();
          }
  
          if(isbought[msg.sender]==false){
              buyers.push(msg.sender);
              isbought[msg.sender]=true;
          }
          
      }
  
          function BuyTokenWithUSDT(uint256 _amt,address _ref) external {
  
          require(TokenSold.add(getTokenvalueperUSDT(_amt))<=maxTokeninPresale,"Hardcap Reached!");
          require(presaleStatus == true, "Presale : Presale is paused");  
          require(_amt > 0, "Presale : Unsuitable Amount"); 
          require(isBlacklist[msg.sender]==false,"Presale : you are blacklisted");
          require(tx.origin == msg.sender,"Presale : caller is a contract");
          uint256 referUSDTamt;
          if(_ref!=address(0))
          {
          if(referalPercent!=0)
          {
           referUSDTamt=  _amt*referalPercent/100; 
          IERC20(USDT).safeTransferFrom(msg.sender,_ref,referUSDTamt);
          }
          }
          Treferralrewards+=referUSDTamt;
          uint256 remaining=_amt-referUSDTamt;
          IERC20(USDT).safeTransferFrom(msg.sender,paymentReceiver,remaining);
          uint256 tokensToBuy=getTokenvalueperUSDT(_amt);
          TokenBought[msg.sender]+=tokensToBuy;
          Claimable[msg.sender] += tokensToBuy;
          TokenSold =TokenSold.add(tokensToBuy); 
  
  
               if (TokenSold >= phases[currentPhase].maxTokens && currentPhase < phases.length - 1) {
              currentPhase++;
              maxTokeninPresale = getTotalMaxTokens();
              TokenPricePerUsdt = getCurrentPhasePrice();
          }
           if(isbought[msg.sender]==false){
              buyers.push(msg.sender);
               isbought[msg.sender]=true;
          }
       
         
      }
  
  
      function setaggregatorv3(address _priceFeedETH) external onlyOwner {
          priceFeedETH = AggregatorV3Interface(_priceFeedETH);
      }
  
      function getValuePerUsdt(uint256 _amt) public view returns (uint256) {
          return (TokenPricePerUsdt.mul(_amt)).div(1e18);
      }
  
      function stopPresale() external onlyOwner {
          presaleStatus = false;
      }
  
      function StartClaim() external onlyOwner {
          CanClaim = true;
      }
  
      function StopClaim() external onlyOwner {
          CanClaim = false;
      }
  
      function resumePresale() external onlyOwner {
          presaleStatus = true;
      }
  
      function setmaxTokeninPresale(uint256 _value) external onlyOwner {
          maxTokeninPresale = _value;
      }
  
      function contractbalance() public view returns (uint256) {
          return address(this).balance;
      }
  
  
      function settoken(IERC20 _USDT) external onlyOwner {
          USDT=_USDT;
      }
  
      function changeFundReceiver(address payable _paymentReceiver) external onlyOwner {
          paymentReceiver = _paymentReceiver;
      }
  
      function setBlacklist(address _addr, bool _state) external onlyOwner {
          isBlacklist[_addr] = _state;
      }
  
      function releaseFunds() external onlyOwner {
          payable(msg.sender).transfer(address(this).balance);
      }
  
      function updateTokenSold(uint256 _newTokenSold) external onlyOwner {
          require(_newTokenSold <= maxTokeninPresale, "Presale: New TokenSold exceeds maxTokeninPresale");
          TokenSold = _newTokenSold;
      }
  
      function setreferalPercent(uint256 _refpercent) external onlyOwner{
          referalPercent=_refpercent;
      }
  
  
      function ETHToToken(uint256 _amount) public view returns (uint256) {
          uint256 ETHToUsd = (_amount * (getLatestPriceETH())) / (1 ether);
          uint256 numberOfTokens = (ETHToUsd * (TokenPricePerUsdt)) / (1e18);
          return numberOfTokens;
      }
  
          function getTokenvalueperUSDT(uint256 _amt) public view returns(uint256){
      
         return   (TokenPricePerUsdt.mul(_amt)).div(1e6);
      }
  
      function setPhases(uint256 _maxSold,uint256 _tokenin1usd) external onlyOwner{
           phases.push(Phase(_maxSold * 1E18, _tokenin1usd * 1E18));
      }
  }