consequaturvero/w0rld0fweb3.js

Complex web3-themed game engine using Express, Web3, and Ethers

// w0rld0fweb3.js
const express = require('express');
const { ethers } = require('ethers');
const Web3 = require('web3');

const app = express();
const port = 3000;

// Web3 provider for communication with the blockchain
const web3Provider = new Web3.providers.HttpProvider('https://mainnet.infura.io/v3/YOUR_INFURA_API_KEY');
const web3 = new Web3(web3Provider);

// Game logic - Imagine a complex web3-themed game with blockchain and L2 communication
const players = new Map();
let gameStarted = false;

app.use(express.json());

app.post('/join-game', async (req, res) => {
  if (!gameStarted) {
    const playerName = req.body.playerName;
    const playerWallet = ethers.Wallet.createRandom();
    const playerAddress = playerWallet.address;

    // Simulate a smart contract interaction to register the player on the blockchain
    const gasPrice = await web3.eth.getGasPrice();
    const transaction = {
      from: 'YOUR_GAME_CONTRACT_ADDRESS',
      to: 'YOUR_GAME_CONTRACT_ADDRESS',
      value: web3.utils.toWei('0.1', 'ether'),
      gas: 21000,
      gasPrice,
      data: web3.eth.abi.encodeFunctionCall({
        name: 'registerPlayer',
        type: 'function',
        inputs: [{ type: 'string', name: 'playerName' }, { type: 'address', name: 'playerAddress' }],
      }, [playerName, playerAddress]),
    };

    // Send the transaction
    const signedTransaction = await playerWallet.signTransaction(transaction);
    await web3.eth.sendSignedTransaction(signedTransaction.rawTransaction);

    players.set(playerName, playerAddress);
    res.send(`Player ${playerName} joined the game. Address: ${playerAddress}`);
  } else {
    res.status(400).send('Game already started. Cannot join.');
  }
});

app.post('/start-game', async (req, res) => {
  if (!gameStarted && players.size >= 2) {
    gameStarted = true;
    const gameInfo = Array.from(players.entries()).map(([name, address]) => ({ name, address }));
    res.json({ message: 'Game started!', players: gameInfo });
  } else {
    res.status(400).send('Not enough players to start the game.');
  }
});

app.listen(port, () => {
  console.log(`Server is running at http://localhost:${port}`);
});