Murow

A lightweight TypeScript game engine for server-authoritative multiplayer games.

Installation

npm install murow

Usage

import {
  FixedTicker,
  EventSystem,
  BinaryCodec,
  generateId,
  lerp,
  NavMesh,
  PooledCodec,
  IntentTracker,
  Reconciliator
} from 'murow';
// or
import { FixedTicker } from 'murow/core';

Modules

Core Utilities

• FixedTicker: Deterministic fixed-rate update loop
• EventSystem: High-performance event handling
• BinaryCodec: Schema-driven binary serialization
• generateId: Cryptographically secure ID generation
• lerp: Linear interpolation utility
• NavMesh: Pathfinding with dynamic obstacles
• PooledCodec: Object-pooled binary codec with array support (via PooledCodec.array()) for efficient snapshot encoding. Supports zero-copy encoding with encodeInto() for minimal allocations
• IntentTracker & Reconciliator: Client-side prediction

Protocol Layer

Minimalist networking primitives:

• IntentRegistry: Type-safe intent codec registry
• SnapshotCodec: Binary encoding for state deltas
• Snapshot<T>: Delta-based state updates
• applySnapshot(): Deep merge snapshots into state

Works harmoniously with core utilities (FixedTicker, IntentTracker, Reconciliator).

See Protocol Layer Documentation for usage.

Network Layer

Transport-agnostic client/server abstractions:

• ServerNetwork: Multiplayer game server with per-peer snapshot registries
• ClientNetwork: Game client with intent/snapshot handling
• TransportAdapter: Pluggable transport interface
• BunWebSocketTransport: Bun WebSocket implementation (reference)

Key features:

• Per-peer snapshot registries for fog of war and interest management
• Transport agnostic - works with WebSocket, WebRTC, UDP, etc.
• Type-safe protocol integration with IntentRegistry and SnapshotRegistry

See Network Layer Documentation for usage and examples/multiplayer-game.ts for a complete example.

Building

npm install
npm run build

License

MIT