RandomizerRNG

Inherits: RNG

State Variables


uint256 public constant CALLBACK_GAS_LIMIT = 50000;


address public governor;


IRandomizer public randomizer;


mapping(uint128 => uint256) public randomNumbers;


mapping(address => uint128) public requesterToID;


modifier onlyByGovernor();

Constructor.


constructor(IRandomizer _randomizer, address _governor);

Parameters

Name	Type	Description
`_randomizer`	`IRandomizer`	Randomizer contract.
`_governor`	`address`	Governor of the contract.

Changes the governor of the contract.


function changeGovernor(address _governor) external onlyByGovernor;

Parameters

Name	Type	Description
`_governor`	`address`	The new governor.

Request a random number. The id of the request is tied to the sender.


function requestRandomness(uint256) external override;

Return the random number.


function receiveRandomness(uint256) external view override returns (uint256 randomNumber);

Returns

Name	Type	Description
`randomNumber`	`uint256`	The random number or 0 if it is not ready or has not been requested.

Callback function called by the randomizer contract when the random value is generated.


function randomizerCallback(uint128 _id, bytes32 _value) external;

Allows the governor to withdraw randomizer funds.


function randomizerWithdraw(uint256 _amount) external onlyByGovernor;

Parameters

Name	Type	Description
`_amount`	`uint256`	Amount to withdraw in wei.