Folio Multiplayer Racing

Transformed Bruno Simon’s single-player folio into a real-time multiplayer racing game. Multiple visitors share the same scene with synced physics, in-game chat, a minimap, and a procedural race track.

What’s in it

• Socket.IO server relaying car physics snapshots at 20 Hz
• Client-side interpolation with 100ms delay buffer for smooth remote cars
• Procedural race track built from CatmullRom curves with matcap barrier walls, asphalt surface, and a checkered start/finish line
• Bumper-car collisions between players with impulse relay, camera shake, and particle explosions
• 3-step lobby: name → car color (8 matcap options) → car type (default or CyberTruck)
• In-game chat with transparent panel, Enter/Escape shortcuts, and unread badge
• Minimap showing all player positions, headings, and track outline
• Grid spawn system placing players in a 2-wide stagger on the start straight

Also opened a PR to the upstream brunosimon/folio-2019 repo.