Nakamonsta

Catch, collect and fight collectible monsters. This is an open source dApp mostly inspired by Cryptokitties.

A side project to learn more about some smart contract development concepts and tools (Truffle, Drizzle and Mythril Classic).

Warning: this is highly inspired by Cryptokitties, but it's not supposed to be a clone. This project is mostly an experiment to use Truffle + Drizzle.

Features

• Basic Blockchain Authentication
• ERC721 tokens
• Clock Auction
• Genetic based traits
• Nakamonsta Minting and Reproduction

Demos

• Create an Auction for a Nakamonsta

  

• Buy a Nakamonsta

  

• Mate 2 Nakamonstas

  

Development

Setup

Make sure to have a local dev Ethereum blockchain started (geth --dev, Ganache, etc.). And make sure to have a web3 enabled browser (Firefox + Metamask for instance) connected to that development blockchain. Then you can run the following commands deploy the smart contracts, create some initial data and serve the web app.

$ truffle migrate # build and deploy the smart contracts
$ yarn populate   # create some test data + the genesis nakamonsta, father and mother of all nakamonstas
$ yarn start      # run the local webserver and serve the web app

There is also a shortcut that does exactly this:

$ yarn fullstart

Run the linter

$ yarn lint

Other Documents

• Milestones / TODO list
• Genome: encoding information in

Known Issues

• Rejecting a transaction (for instance when creating an auction or buying a nakamonsta) puts the view into infinite loading mode. This is partly due to this issue trufflesuite/drizzle#134 in Drizzle.

FAQ

When I try to run the yarn fullstart command, I get the error:

Writing artifacts to ./build/contracts

Could not connect to your Ethereum client. Please check that your Ethereum client:
    - is running
    - is accepting RPC connections (i.e., "--rpc" option is used in geth)
    - is accessible over the network
    - is properly configured in your Truffle configuration file (truffle.js)

error Command failed with exit code 1.

What should I do?

Make sure that the default config in truffle.js suits your needs. The expected development server is 127.0.0.1:8545.

I get the error: You must connect to a local development network. Contracts haven't been deployed on testnet or mainet yet. when I try to visit the dev server on my web browser.

Metamask is not connected to your development server, make sure to point Metamask

LICENSE

MIT