BlockHashRNG

Git Source

Inherits: RNG

Author: Clément Lesaege - clement@lesaege.com Random Number Generator returning the blockhash with a fallback behaviour. In case no one called it within the 256 blocks, it returns the previous blockhash. This contract must be used when returning 0 is a worse failure mode than returning another blockhash. Allows saving the random number for use in the future. It allows the contract to still access the blockhash even after 256 blocks.

State Variables

randomNumbers

mapping(uint256 => uint256) public randomNumbers;

Functions

requestRandomness

Request a random number.

function requestRandomness(uint256 _block) external override;

Parameters

receiveRandomness

Return the random number. If it has not been saved and is still computable compute it.

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

Parameters

Returns