RCWeb Racer Control App

The RCWeb Racer Control App (app/racer-control) is the phone controller for the Racer viewer. It turns a touch screen into a combined steering, throttle, and brake surface.

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What it does

• Single-pad driving: One analog touch pad handles steering and acceleration together. Drag up to build speed, down to brake or reverse, and sideways to steer.
• Live race telemetry: The controller shows the current lap, place, speed, and state pushed back from the shared race screen.
• Quick restart: A restart button can reset the race for the room without leaving the controller.

How it works

• Asymmetric messaging: The controller sends racer.remoteControl(...) calls to the viewer at a throttled interval and receives targeted state updates through racerControl.updateState(...).
• Analog normalization: Pointer coordinates are converted into a bounded steering axis and throttle axis so every phone sends consistent values no matter its screen size.

Launch RCWeb App