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Update PRD with data persistence requirements using Godot's FileAccess class

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Andy
2025-08-19 21:43:14 -04:00
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docs/prd.md
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@@ -19,6 +19,7 @@ The project aims to provide a unique value proposition by combining strategic sh
| Date | Version | Description | Author |
| :--- | :--- | :--- | :--- |
| 2025-08-19 | 1.1 | Added data persistence requirement using Godot's FileAccess class with store_var() and get_var() methods. Updated checklist results and recommendations accordingly. | John (PM) |
| 2025-08-18 | 1.0 | Initial PRD draft created from project brief and brainstorming results. | John (PM) |
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@@ -46,6 +47,7 @@ The project aims to provide a unique value proposition by combining strategic sh
* **NFR2:** The project must be developed using the Godot game engine.
* **NFR3:** The standard IDE for development will be Visual Studio Code.
* **NFR4:** The UI and overall art direction must adhere to a retro-futuristic aesthetic inspired by the *Alien* franchise, including elements like CRT scan lines and pixelated graphics.
* **NFR5:** Game state persistence must be implemented using Godot's FileAccess class, specifically utilizing `store_var()` and `get_var()` methods to read and write game state data.
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@@ -263,7 +265,7 @@ _(Assumption: Given the "passion project" and "vibe coding" nature, a heavy test
* **Readiness for Architecture Phase:** Nearly Ready
* **Most Critical Gaps:** The PRD is strong on the "what" (functional requirements, epics, stories) but is missing key details on "how well" and "how to manage." The most significant gaps are the lack of any specific non-functional requirements (performance, security) and cross-functional requirements (data persistence, operations). The architect can begin work, but will need to make significant assumptions in these areas if they are not addressed.
#### **Category Analysis Table**
#### **Category Analysis Table
| Category | Status | Critical Issues |
| :--- | :--- | :--- |
@@ -274,21 +276,21 @@ _(Assumption: Given the "passion project" and "vibe coding" nature, a heavy test
| 5. Non-Functional Requirements | **PARTIAL** | No specific requirements for Performance, Security, or Reliability. |
| 6. Epic & Story Structure | PASS | None. |
| 7. Technical Guidance | **PARTIAL** | Rationale for tech choices not documented; no framework for future decisions. |
| 8. Cross-Functional Requirements | **FAIL** | No requirements for Data (persistence), Integrations, or Operations. |
| 8. Cross-Functional Requirements | **PARTIAL** | Data persistence requirement has been added; still missing requirements for Integrations and Operations. |
| 9. Clarity & Communication | PASS | None. |
#### **Top Issues by Priority**
* **HIGH:**
* **Data Persistence:** The PRD does not specify how game state (ship layout, crew stats, resources) should be saved and loaded. This is a critical architectural consideration.
* **Performance/Security:** There are no defined performance targets (e.g., FPS) or security considerations. While a passion project, these should be acknowledged.
* **MEDIUM:**
* **Data Persistence Implementation:** While the requirement has been added, the specific implementation details should be documented in the architecture document.
* **Technical Rationale:** The PRD lists technologies (Godot, VS Code) but doesn't document *why* they were chosen, which can be important context for future decisions.
* **Operational Needs:** No mention of how the game will be built, deployed, or monitored, even at a high level.
#### **Recommendations**
1. **Address Data Persistence:** Before the developer begins work on Epic 2, a new story should be added to Epic 1 to handle saving and loading the game state.
1. **Refine Data Persistence:** The data persistence requirement has been added, but the architect should document the specific implementation approach in the architecture document.
2. **Add Non-Functional Sections:** Add sections to the PRD for Performance, Security, and Data. Even if the requirement is "No specific requirements for MVP," they need to be explicitly addressed.
3. **Document Rationale:** Briefly add the reasoning for key technical choices in the "Technical Assumptions" section to provide context for the architect.
@@ -308,8 +310,7 @@ _(Assumption: Given the "passion project" and "vibe coding" nature, a heavy test
#### 8.1. Open Questions
1. What is the specific strategy for acquiring or creating the required art and sound assets?
2. What is the desired mechanism for game state persistence (e.g., local JSON files, cloud saves)?
3. Are there any specific performance targets (e.g., target FPS on minimum spec hardware) or security requirements for the MVP, even if minimal?
2. Are there any specific performance targets (e.g., target FPS on minimum spec hardware) or security requirements for the MVP, even if minimal?
#### 8.2. References
* `docs/brief.md`