Multiplayer

vgai does multiplayer with Colyseus — you call it directly, no wrapper. State syncs from server to client through Colyseus schemas and the Callbacks API.

In this section

• Networking model — NetTransport + StateReplication, and the Colyseus implementation.
• Rooms — defining a Room<State> with @colyseus/schema; the shipped rooms (arena, tank, notblox, generic).
• The Callbacks API — onAdd / onChange / onRemove; reading live schema fields in onChange (never destructuring them).
• Server-authoritative patterns — input up, state down; reconciling client and server.
• Add a room — a walkthrough from server class to client connection.
• Capstone — the multiplayer arena / tanks game.

In progress

The add-a-room and capstone lessons are validated by starting the Colyseus harness, joining, and asserting a state sync.