cd crosschainrand
foundry install ( to install dependencies )
touch .env
set RPC variables in .env file in project root
( MATIC_RPC_URL and GOERLI_RPC_URL from INFURA)
forge script script/Counter.s.sol:CounterScript --broadcast --verify -vvvv
This will deploy the contracts and verify on etherscan
Detailed instructions @ https://www.youtube.com/watch?v=hNoIWLgHQrI
Detailed App demo @ https://www.youtube.com/watch?v=vvE-Aa2Jdac
Deploy File ExecutableSample : SuperRandom contract on polygon mumbai with the following args gateway : 0xBF62ef1486468a6bd26Dd669C06db43dEd5B849B gasreceiver : 0xbE406F0189A0B4cf3A05C286473D23791Dd44Cc6
This is deployed to 0xece175f27ac8c46d80509cb586a4f0113e67bf5c on mumbai
Now, let's play the betting game
2 ppl can bet with 0.02 MATIC by calling bet()
Switch Metamask to Moonbeam Let's send VRF from moonbeam to polygon next
Step1 : Deploy ExecutableVRF from axelar.sol using the following params on moonbase
gateway : 0x5769D84DD62a6fD969856c75c7D321b84d455929 gasService : 0xbE406F0189A0B4cf3A05C286473D23791Dd44Cc6
This is deployed to 0x6B3930fD1371CaF46FcC29BC15c240C4eeB47716
This contract should have funds to pay for VRF requets, lets send it 2 DEV
Let's call startLottery which starts VRF request, pass VALUE of 200000 Gwei
Now we can call FullFill request after waiting 2 blocks. This gives us the randomness.
Now, call setVRF with
destinationChain : Polygon destinationAddress : 0xece175f27ac8c46d80509cb586a4f0113e67bf5c (polgon contract)
set Value to 0.2 DEV AND SEND IT
Connect metamask to polygon now
On POlygon,
Anyone can call pickWinner(), he / she gets all funds You can read the VRF value by calling SuperRandom.value()