Add real-time position updates via protobuf messages

Objective

Implement real-time synchronization of entity positions between server and client using protobuf messages for smooth gameplay.

Requirements

• Position Sync: Keep client and server entity positions synchronized
• Protobuf Integration: Use protobuf messages for position updates
• Real-time Updates: Low-latency position synchronization
• Efficient Bandwidth: Optimize message size and frequency

Technical Details

• Create protobuf messages for position update events
• Implement position update broadcasting from server
• Add client-side position update handling
• Optimize update frequency and delta compression
• Handle network latency and prediction
• Add position validation and anti-cheat measures

Acceptance Criteria

• Entity positions are synchronized in real-time
• Protobuf messages handle position updates efficiently
• Network bandwidth usage is optimized
• Position updates handle network latency gracefully
• Client-server position consistency is maintained

Milestone Relation

Critical for MVP multiplayer experience. Enables real-time gameplay by keeping all clients synchronized with server state.