Solidity中的載入模具算法？

我正在嘗試實現一個智能合約，它接受一個謹慎的分佈並返回一個載入的隨機數。數字越高，1-10000 的機會就越高。

**有人對此有任何經驗或想法嗎？

這是“使用乙太坊智能合約建構遊戲”的範例。

contract SatoshiDice {
   struct Bet {
   address user;
   uint block;
   uint cap;
   uint amount;
   }

   uint public constant FEE_NUMERATOR = 1;
   uint public constant FEE_DENOMINATOR = 100;
   uint public constant MAXIMUM_CAP = 100000;
   uint public constant MAXIMUM_BET_SIZE = 1e18;
   address owner;
   uint public counter = 0;
   mapping(uint => Bet) public bets;
   event BetPlaced(uint id, address user, uint cap, uint amount);
   event Roll(uint id, uint rolled);

function SatoshiDice () public {
   owner = msg.sender;
   }

function wager (uint cap) public payable {
   require(cap <= MAXIMUM_CAP);
   require(msg.value <= MAXIMUM_BET_SIZE);
   counter++;
   bets[counter] = Bet(msg.sender, block.number + 3, cap,
   msg.value);
   BetPlaced(counter, msg.sender, cap, msg.value);
}

function roll(uint id) public {
   Bet storage bet = bets[id];
   require(msg.sender == bet.user);
   require(block.number >= bet.block);
   require(block.number <= bet.block + 255);
   bytes32 random = keccak256(block.blockhash(bet.block), id);
   uint rolled = uint(random) % MAXIMUM_CAP;
   if (rolled < bet.cap) {
       uint payout = bet.amount * MAXIMUM_CAP / bet.cap;
       uint fee = payout * FEE_NUMERATOR / FEE_DENOMINATOR;
       payout -= fee;
       msg.sender.transfer(payout);
   }

   Roll(id, rolled);
   delete bets[id];
   }
   
   function fund () payable public {}
   function kill () public {
   require(msg.sender == owner);
   selfdestruct(owner);
}
}

由於對這種合約的解釋超出了 StackExchange 的答案，我建議閱讀這本書和/或更多關於鏈上隨機數生成的內容。

引用自：https://ethereum.stackexchange.com/questions/106855