Problem mit der MetaMask-Gasgrenze auf Ropsten

Wenn ich versuche, meinen Remix-Vertrag mit Metamask (injiziertes web3/Ropsten) zu erstellen, setze ich das Gaslimit im Remix auf 4700000 und drücke auf Erstellen. Wenn sich MetaMask öffnet, werde ich aufgefordert, meine Gasgebühr unter einen bestimmten Betrag zu senken. Sobald ich es senke (wenn ich es nicht tue, kann ich es nicht erstellen), wird der Vertrag erstellt, ABER meine Variablen innerhalb des Vertrags werden nicht initialisiert. Zum Beispiel a var a = 10; gibt 0 zurück.

Wie kann ich dieses Problem überwinden?

pragma solidity ^0.4.20;
import "./oraclize.sol";

contract Casino is usingOraclize {
   address owner;
   uint public betAmount = 30 finney; //Equal to 0.01 Ether
   uint public totalBet; //Amount of Ether bet for current game
   uint public numberOfBets; //Total number of current bets
   //uint public maxAmountOfBets = 1 //Maximum amount of bets can be made for each game by each user
   uint public limitAmountOfBets = 3; //Maximum amount of bets for each game
   uint public numberWinner; //Number that won last game
   address[] public players; //Players
   mapping(uint => address[]) numberBetPlayers; //Who bet for which number
   mapping(address => uint) playerBetsNumber; //Number bet by each player

   modifier onEndGame() {
       if(numberOfBets >= limitAmountOfBets) _;
   }

   //constructor - set bet amount and max bets in each game
   function Casino(uint _betAmount, uint _limitAmountOfBets) {
       owner = msg.sender; //set creator of contract to owner

       if(_betAmount > 0) betAmount = _betAmount;
       if(_limitAmountOfBets > 0) limitAmountOfBets = _limitAmountOfBets;

       oraclize_setProof(proofType_Ledger); //arge
   }

   //check if player exists in current game
   function checkPlayerExists(address player) public returns(bool) {
       if(playerBetsNumber[player] > 0) return true;
       else return false;
   }

   //bet function
   function bet(uint numberToBet) payable {
       require(numberOfBets <= limitAmountOfBets); //check if limit has been reached
       require(!checkPlayerExists(msg.sender)); //check that player hasn't bet before
       require(numberToBet >=1 && numberToBet <= 10); //check that the bet is between 1 and 10
       require(msg.value == betAmount); //check that ether send by sender is equal to bet amount

       playerBetsNumber[msg.sender] = numberToBet;
       numberBetPlayers[numberToBet].push(msg.sender);

       numberOfBets += 1;
       totalBet += msg.value;

       if(numberOfBets >= limitAmountOfBets) generateNumberWinner();
   }

   //generate random numbers using oraclize_newRandomDSQuery function
   function generateNumberWinner() payable onEndGame {
       uint numberRandomBytes = 4;
       uint delay = 0;
       uint callbackGas = 200000;

       bytes32 queryId = oraclize_newRandomDSQuery(delay, numberRandomBytes, callbackGas);
   }

   function __calback(bytes32 _queryId, string _result, bytes _proof) oraclize_randomDS_proofVerify(_queryId, _result, _proof) onEndGame {
       assert(msg.sender == oraclize_cbAddress());

       numberWinner = (uint(sha3(_result))%10+1);
       distributePrizes();
   }

   function distributePrizes() onEndGame {
       uint winnerEtherAmount = totalBet / numberBetPlayers[numberWinner].length; //how much each winner will get

       for(uint i = 0; i < numberBetPlayers[numberWinner].length; i++) { //sent ether to addresses
           numberBetPlayers[numberWinner][i].transfer(winnerEtherAmount);
       }

       for(uint j = 1; j <= 10; j++) {
           numberBetPlayers[j].length = 0;
       }

       totalBet = 0;
       numberOfBets = 0;
   }
}