8. Crosscutting Concepts

This section describes architectural concepts and design principles that apply consistently across multiple system components of the Sokoverse.

8.1. Server Authority and Validation

Description

The system follows a server-authoritative architecture. All game-relevant logic is executed and validated on the Game Server.

Key Rules

Clients only submit intended actions (e.g., move direction, power-up activation)

The Game Server validates all actions against the current game state

The authoritative game state is maintained exclusively on the server

Clients never modify the game state directly

Applies To

Game Client

Game Server

Goals Addressed

SG6 (Fair and secure gameplay)

SG7 (Consistent session state)

SG10 (Reliable operation)

8.2. Error Handling and Feedback

Description

Errors are handled in a consistent and user-aware manner across all clients.

Key Rules

Services return standardized error responses

Clients translate technical errors into user-friendly messages

Errors do not expose internal system details

Recoverable errors (e.g., temporary disconnects) trigger retry or recovery mechanisms

Applies To

Game Client

Level Designer Client

All service interfaces

Goals Addressed

SG8 (Usability and accessibility)

SG10 (Reliable operation under failures)

8.3. AI Assistance Integration

Description

AI functionality is implemented as a separate, stateless service that provides gameplay assistance without influencing authoritative game logic.

Key Rules

AI services only analyze game state; they do not modify it

AI hints are advisory and optional

AI services access game state indirectly via the Game Server

AI latency must not block gameplay progression

AI services and requests are controlled by the game server and not by the clients

Applies To

AI Service

Game Server

Game Client (indirectly)

Goals Addressed

SG3 (AI-assisted gameplay guidance)

SG1.3 (Authoritative game state)

SG9 (Responsiveness)