Dark Forest Game on Blockchain. Follow these steps in order to make things work:
you need truffle and ganache-cli installed with npm install -g. if you are having troubles try sudo npm install -g.
then run ./local-deploy. this compiles the solidity contracts with truffle, starts running a local blockchain with ganache-cli, and then deploy the contracts to the blockchain.
remember to npm install in ./client before trying to run the webapp with
npm start!
to interact with the webapp in browser, you need metamask. point metamask to http://localhost:8545, which is the port that ganache-cli defaults to when running the local blockchain. Also import the following private key as an account in your metamask: 0xD44C7963E9A89D4F8B64AB23E02E97B2E00DD57FCB60F316AC69B77135003AEF. Our ganache blockchain which is started up by local-deploy.sh automatically puts in 100eth into this account.
make sure that you've run ./local-deploy at least once before trying to run the webapp. this builds some necessary files.
whenever you run ./local-deploy again, you'll need to Reset Account in MetaMask to clear old/stale transaction data.
if you are modifying anything SNARK-related, you may be interested in rebuilding circuits / redoing setup.
we depend on a few packages which handle snark-related build processes.
- global dependencies: first
npm install -g snarkjsandnpm install -g circomto installsnarkjsandcircomprograms globally. - local dependencies: then, run
npm installin the./clientdirectory. this ensures that you have a local copy ofcircomlibin./node_modules.
now you can run ./compile.sh in circuits/init and circuits/move to rebuild circuit.json, proving_key.json, verification_key.json, and the verifier.sol solidity contract.
for your convenience, a sample input.json and public.json pair is also included for sanity test checks. input.json is a sample input, public.json is public parameters. compile.sh will create witness.json and verification_key.json, and print to the console verifying that the proof is generated and verifies properly.