Replace unfiltered generate_snapshot with compute_observer_snapshot
that combines shadowcasting + vision cone to send only visible
entities and tiles. Enforces information asymmetry (D-011): NPCs
behind walls or in the blind spot are excluded from the snapshot.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace string-matching disconnect detection with explicit
BridgeError::Disconnected variant. Add TcpBridge::accept_on(listener)
that takes a pre-bound TcpListener, eliminating the 100ms sleep hack
in TCP tests. Send errors now also trigger ServerRunning=false.
Add trace logging to generate_snapshot for entity count visibility.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Godot has no Unix socket API, so TCP localhost is required for
client-server IPC. TcpBridge implements SimBridge with the same
framing protocol as LocalBridge. Includes accept/connect methods
and three integration tests over TCP.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.6