Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
This contract has been partially verified via Sourcify.
- Contract name:
- RandomnessReceiver
- Optimization enabled
- true
- Compiler version
- v0.8.19+commit.7dd6d404
- Optimization runs
- 800
- EVM Version
- default
- Verified at
- 2024-07-11T13:29:16.527990Z
Contract source code
// SPDX-License-Identifier: UNLICENSED
/*
.
.
. ..
. .+*...
.. :+#%*-..
. -*#%@@%=.. ..
. .+##@@#%@@*:.. .
. :*%%@%===#@@#-..
.. :*%%@#-=%#=*%@%+:..
. :*%@%+-+%%#*+*%@@*:..
.-*%@%=-#@@@%#***#%@#-....
...+#%@#-=%@%@@%%+****#@%+:..
. =@@@*-*@@@%%@%++%*+++#@@*.
. #@@#=#@@@@@%#+*%##*+=+%@@+.
. .%@@+*@@@@@@@%#%###**++#@@#. .
. .%@%+#@@@@@@@@%%###*+++#@@#. .
. .%@%+#%*%@@@@@%%%%*-:+*#@@#. .
. .%@%=*@#+%@@@@%%%*-:-+*+@@#. .
. .%@#-+@@#=#@@@%%#-:=+*+=%@%. .
.*%*-+@@@#=*%@@#-:+**#=-%@%. .
.+@#-+@%%@#=+%#-:*##**=-%@%. .
.=@%=+@#+%@%==--*#%*+#==%@#. .
.+@@=*@@#+%%%+=#%%**@%==@@#. .
#@@*##%@#*@%%%%%*#@@***@@%. .
. #@@%%%*%@@@@%%@@%@%+##%@@#..
. -@@@%@@#%@@@@@@@@#+##%@@@= .
..+@@@@@@#%@@@@@@**%%@@@@+..
. -%@@@@%##@@@%*#%@@@@%- .
. .*@@@@*+%@%*#@@@@@*. .
. -%@@@++%*+#@@@%= .
.. :#@@@#++#@@@#: ..
. .+@@@@@@@@+. .
.. :#@@@@#: ..
.. .+@@+. .
. == .
.. ..
..
Website: https://EVM.bet
Twitter: https://x.com/EvmGames
*/
pragma solidity 0.8.19;
/// @notice Interface of the VRF Gateway contract. Must be imported.
interface ISecretVRF {
function requestRandomness(uint32 _numWords, uint32 _callbackGasLimit)
external
payable
returns (uint256 requestId);
}
interface ILottery {
/**
* @notice View current lottery id
*/
function viewCurrentLotteryId() external returns (uint256);
}
interface IRandomizer {
/**
* Requests randomness
*/
function getRandomNumber(uint32 _callbackGasLimit, uint256 amountOfGas)
external;
/**
* Views random result
*/
function viewRandomResult() external view returns (uint32);
/**
* View latest lotteryId numbers
*/
function viewLatestLotteryId() external view returns (uint256);
}
contract RandomnessReceiver is IRandomizer {
/// @notice VRFGateway stores address to the Gateway contract to call for VRF
address public VRFGateway;
address public immutable owner;
uint256 public latestLotteryId;
uint256 public latestRandomNumber;
uint256 public latestRequestId;
uint32 public randomResult;
address public lottery;
/// @notice Event that is emitted when a VRF call was made (optional)
/// @param requestId requestId of the VRF request. Contract can track a VRF call that way
event requestedRandomness(uint256 requestId);
event fulfilledRandomWords(uint256 requestId, uint256[] randomWords);
constructor() {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner, "UNAUTHORIZED");
_;
}
/// @notice Sets the address to the Gateway contract
/// @param _VRFGateway address of the gateway
function setGatewayAddress(address _VRFGateway) external onlyOwner {
VRFGateway = _VRFGateway;
}
/**
* @notice Set the address for the lottery smart contract
* @param _lottery: address of the lottery
*/
function setLotteryAddress(address _lottery) external onlyOwner {
lottery = _lottery;
}
/**
* @notice View latestLotteryId
*/
function viewLatestLotteryId() external view override returns (uint256) {
return latestLotteryId;
}
/// @notice function on how to implement a VRF call using Secret VRF
function getRandomNumber(uint32 _callbackGasLimit, uint256 amountOfGas)
external
{
// Get the VRFGateway contract interface
ISecretVRF vrfContract = ISecretVRF(VRFGateway);
require(msg.sender == lottery, "caller not lottery");
require(address(this).balance >= amountOfGas, "InsufficientFee");
// Can be up to 2000 random numbers, change this according to your needs
uint32 numWords = 1;
// Call the VRF contract to request random numbers.
// Returns requestId of the VRF request. A contract can track a VRF call that way.
latestRequestId = vrfContract.requestRandomness{value: amountOfGas}(
numWords,
_callbackGasLimit
);
// Emit the event
emit requestedRandomness(latestRequestId);
}
/**
* @notice View random result
*/
function viewRandomResult() external view override returns (uint32) {
return randomResult;
}
/*//////////////////////////////////////////////////////////////
fulfillRandomWords Callback
//////////////////////////////////////////////////////////////*/
/// @notice Callback by the Secret VRF with the requested random numbers
/// @param requestId requestId of the VRF request that was initally called
/// @param randomWords Generated Random Numbers in uint256 array
function fulfillRandomWords(
uint256 requestId,
uint256[] calldata randomWords
) external {
// Checks if the callback was called by the VRFGateway and not by any other address
require(
msg.sender == address(VRFGateway),
"only Secret Gateway can fulfill"
);
// Do your custom stuff here, for example:
require(latestRequestId == requestId, "Wrong requestId");
randomResult = uint32(1000000 + (randomWords[0] % 1000000));
latestLotteryId = ILottery(lottery).viewCurrentLotteryId();
latestRandomNumber = randomWords[0];
emit fulfilledRandomWords(requestId, randomWords);
}
receive() external payable {}
function withdrawStuckXTZ() external onlyOwner {
(bool success, ) = address(msg.sender).call{
value: address(this).balance
}("");
require(success, "Failed to withdraw stuck XTZ");
}
}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[]},{"type":"event","name":"fulfilledRandomWords","inputs":[{"type":"uint256","name":"requestId","internalType":"uint256","indexed":false},{"type":"uint256[]","name":"randomWords","internalType":"uint256[]","indexed":false}],"anonymous":false},{"type":"event","name":"requestedRandomness","inputs":[{"type":"uint256","name":"requestId","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"VRFGateway","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"fulfillRandomWords","inputs":[{"type":"uint256","name":"requestId","internalType":"uint256"},{"type":"uint256[]","name":"randomWords","internalType":"uint256[]"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"getRandomNumber","inputs":[{"type":"uint32","name":"_callbackGasLimit","internalType":"uint32"},{"type":"uint256","name":"amountOfGas","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"latestLotteryId","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"latestRandomNumber","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"latestRequestId","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"lottery","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"randomResult","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setGatewayAddress","inputs":[{"type":"address","name":"_VRFGateway","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setLotteryAddress","inputs":[{"type":"address","name":"_lottery","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"viewLatestLotteryId","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"viewRandomResult","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"withdrawStuckXTZ","inputs":[]},{"type":"receive","stateMutability":"payable"}]
Contract Creation Code
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 ByteCode
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