Smart Parking Lot Management System (Unity)

  • Interactive multi-floor elevator logic
  • State-driven system design
  • Real-world behavior simulation
  • Built in Unity

    • Problem

    Managing parking availability requires accurate state tracking, deterministic entry/exit rules, and clear visibility for users. This project simulates a smart parking lot system with an emphasis on logic correctness and system design, rather than visual complexity.

    Approach

    The system is built using a logic-first architecture, where all parking rules and state transitions are handled by a central manager.

    Key design principles:
    • Centralized state management
    • UI acts as a visual layer only
    • No business logic inside UI components
    • System invariants enforced at all times

    Core System Flow

  • Vehicle entry assigns the first available slot
  • Vehicle exit frees a specific occupied slot
  • Slot availability and counts update automatically
  • System invariant maintained: Occupied + Available = Total Slots


    • Why This Design

    This approach ensures:
    • Predictable behavior
    • Easy debugging
    • Scalability to multi-lot systems
    • Clear separation of concerns

    The architecture is intentionally designed to support future expansion (multi-lot management) without restructuring core logic.

    Tools & Technologies

  • Unity
  • C#

    • Future Improvements

  • Queue-based handling of multiple floor requests
  • Door open/close logic with safety constraints
  • First-person interaction mode (prototype in progress on a separate branch)