examples

Examples

This directory contains example implementations demonstrating how to use rollback-netcode.

Local Transport Demo

Location: local-transport/

A browser-based demo that simulates multiple players locally using LocalTransport. No server required - everything runs in a single browser tab.

Features:

• Add/remove players dynamically
• Switch between Star and Mesh topologies
• Adjust simulated latency and jitter
• Induce desyncs to see detection/recovery
• View RTT and rollback statistics

Running:

# From the repository root
npm run build        # Build the library
npm run serve:demo   # Build demo and start HTTP server on port 3000

Then open http://localhost:3000 in your browser.

Live demo: https://someusername6.github.io/rollback-netcode

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WebRTC Demo

Location: webrtc/

A real-network demo using WebRTC for peer-to-peer connections. Requires a signaling server to establish connections, then uses WebRTCTransport for game traffic.

Features:

• Real WebRTC connections between browser tabs
• Minimal WebSocket signaling server (~130 lines)
• Create/join rooms with room IDs
• Demonstrates WebRTCTransport integration

Running:

# From the repository root
npm run build        # Build the library

# From examples/webrtc/
cd examples/webrtc
npm install          # Install ws dependency
npm start            # Build client and start signaling server on port 8080

Then open examples/webrtc/index.html in multiple browser tabs:

1. First tab: Click "Create Room" - note the room ID
2. Other tabs: Enter the room ID and click "Join"

The game starts automatically when 2 players are connected.