RCWeb Invaders App
The RCWeb Invaders App (app/invaders) is a canvas-driven multiplayer homage to Atari 2600 Space Invaders, built in the RCWeb asymmetric pattern so one large display can host the battlefield while many phones control individual ships.
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What it does
- Phone-powered multiplayer defense: Each connected controller gets its own ship, score, lives, and HUD feedback while sharing the same invasion screen.
- Five escalating rounds: Enemy formations grow denser, faster, and more aggressive across a five-round campaign.
- Retro-futurist presentation: The battlefield, ships, invaders, skyline, shields, and summary screens are all drawn directly to a canvas with generated light effects rather than image sprites.
- Code-generated sound: Laser shots, hits, round transitions, breaches, and the final summary use simple Web Audio synthesis instead of external sound assets.
How it works
- Viewer-owned game state: The main
script.jskeeps the canonical list of players, invaders, shields, shots, and rounds. Controllers only send input state. - Targeted controller feedback: The viewer pushes score, lives, rank, and pulse updates back to individual controller clients with
rc.sendFunctionCall(player.id, ...). - Procedural rendering: Pixel invaders, skyline silhouettes, lasers, particles, and HUD glows are generated with canvas drawing commands every animation frame.