This is a small authoritative Node.js game server for a simple 2-player web game. Players can move and throw "potatoes" at each other. The repository provides only the server code — you said you'll implement the web client later.

Files:

• src/server.js - express + socket.io server entry
• src/game.js - authoritative game logic, player & potato state, tick loop
• test/client_sim.js - small simulation that connects two clients and throws potatoes
• package.json - dependencies and scripts

How to run

1. Install deps

npm install

2. Start server

npm start

3. (Optional) Run test simulation in another terminal

npm run test-client

Protocol (Socket.IO events)

• Client -> Server:
  • join (name)
  • input ({left,right,up,down})
  • throw_potato ({x?,y?,vx,vy})
• Server -> Client:
  • joined (initial snapshot)
  • state (players, potatoes)
  • potato_thrown (potato)
  • potato_hit (potatoId, victimId, hp)

Next steps you may want to implement in the client:

• Render players and potatoes on a canvas
• Send input updates at ~20 TPS
• On mouse/click, calculate velocity and send throw_potato