🎯 Repository Quality Improvement Report — PRD Feature-to-Code Alignment

[github-actions[bot]]

Analysis Date: 2026-03-04
Focus Area: PRD Feature-to-Code Alignment
Strategy Type: Custom (repository-specific)
Custom Area: Yes — this project has a detailed, approved PRD v1.1 covering 10 dragon costumes, double-jump, save persistence, power-up queue, audio system, and more. Mapping what's scaffolded vs. what's actually implemented reveals the highest-value next steps and prevents architecture drift.

Executive Summary

The Taekwondo Tech v2 Unity codebase has excellent foundational scaffolding — clean interfaces (IDamageable, ICollectible, IPowerUp), a working enemy state machine with 6 states, and well-named namespaces — but critical PRD requirements are missing their implementations. Four directories (Input/, Persistence/, Costumes/, PowerUps/) contain only .gitkeep files. Key gaps include: no double-jump (explicitly required in Story 1), no save system (required for costume and robot-part persistence), no AudioManager (GameManager has a prominent TODO), and an input architecture inconsistency where PlayerController bypasses InputManager with direct Input.Get* calls.

These gaps represent the highest-risk items for cross-platform delivery to WebGL, iOS, and Android. Addressing them now, while the codebase is young, will prevent the same accumulation of technical debt that made v1 (100K+ lines in 2 files) unmaintainable.

Full Analysis Report

Focus Area: PRD Feature-to-Code Alignment

Current State Assessment

Metrics Collected:

Metric	Value	Status
Total C# scripts	24	✅
Files exceeding 500-line cap	0 (max: 271)	✅
Empty system directories	4 (Input/, Persistence/, Costumes/, PowerUps/)	❌
TODOs in production code	2 (both in GameManager.cs)	⚠️
PRD Story 1 ACs met (double-jump)	❌ Not implemented	❌
PRD Story 7 ACs met (AudioManager)	❌ No AudioManager class	❌
PRD Story 3 ACs met (costumes)	❌ No costume data or manager	❌
Input routing consistency	❌ PlayerController bypasses InputManager	❌
Interface coverage	✅ IDamageable, ICollectible, IInteractable, IPowerUp defined	✅
Event-driven patterns	✅ UnityEvent used in health, score	✅

Findings

Strengths

• Clean interface contracts: Interfaces.cs defines IDamageable, ICollectible, IInteractable, and IPowerUp — all keyed to PRD requirement IDs in XML docs
• Enemy system is solid: 6 state classes (Idle, Patrol, Chase, Attack, Stunned, Defeated) + EnemyStateMachine properly implements the state pattern
• No file exceeds 500-line cap: PRD's Goal 4 is being met — largest file is PlayerCombat.cs at 271 lines
• Event-driven architecture: UnityEvent in PlayerHealth and ScoreManager enables loose coupling
• CollectibleType enum already includes PowerUp and CostumeItem — correct forward planning

Areas for Improvement

• 🔴 [HIGH] PlayerController uses Input.GetAxisRaw() and Input.GetButtonDown("Jump") directly, bypassing the InputManager singleton — breaks the cross-platform abstraction layer required for touchscreen (PRD Story 1 AC: "Controls work equally well on keyboard, gamepad, and touchscreen")
• 🔴 [HIGH] Double-jump not implemented — PlayerController only handles single jump; PRD Story 1 explicitly requires "Player can jump and double-jump with satisfying physics"
• 🔴 [HIGH] No AudioManager exists — GameManager.Start() has a TODO comment; Collectible.cs uses AudioSource.PlayClipAtPoint() directly which will be inconsistent at scale
• 🟡 [MEDIUM] No SaveSystem in the empty Persistence/ directory — PRD Story 2 requires "Progress saves between sessions" and Story 3 requires "Costume choice persists across sessions"
• 🟡 [MEDIUM] No CostumeManager or DragonCostume data model — Costumes/ directory is empty despite 10 costumes + Legendary being a core PRD feature

Detailed Analysis

Input Architecture Gap

PlayerCombat.cs correctly routes input through InputManager.Instance, subscribing to OnPunchInput and OnKickInput events. However, PlayerController.cs still calls Input.GetAxisRaw("Horizontal") and Input.GetButtonDown("Jump") directly. This inconsistency means movement and jumping will not respond to touch or gamepad input when the platform layer is added. The fix requires adding OnMoveInput (with float parameter) and OnJumpInput events to InputManager, and having PlayerController subscribe to them.

Double-Jump Missing from PRD Story 1

The PlayerController.HandleInput() method checks Input.GetButtonDown("Jump") && _isGrounded but has no jump count tracking. Story 1's acceptance criteria explicitly lists double-jump. This is a small, isolated change: add _jumpCount and _maxJumps fields, and allow a second jump when _jumpCount < _maxJumps.

AudioManager Needed

Collectible.cs calls AudioSource.PlayClipAtPoint(_collectSound, Camera.main.transform.position) directly. With the PRD requiring distinct SFX for 15+ events (jump, land, punch, kick, stomp, collect, hurt, defeat enemy, power-up activate, level complete, banana slip, banana deflect, 10 costume special moves), a centralized AudioManager is essential for volume controls, mute support, and sound pooling.

Save System Foundation

The Persistence/ directory is empty. Robot part collection (GameManager._robotPartsCollected) is in-memory only. Costume unlocks, robot build progress, and high scores all require persistence. A SaveSystem using JsonUtility + Application.persistentDataPath would cover all PRD persistence requirements.

---

🤖 Tasks for Copilot Agent

NOTE TO PLANNER AGENT: The following 5 tasks are designed for GitHub Copilot coding agent execution. Please split these into individual work items for separate processing.

Improvement Tasks

---

Task 1: Fix Input Routing in PlayerController

Priority: High
Estimated Effort: Small
Focus Area: Input Architecture / Cross-Platform Compatibility

Description:
PlayerController.cs bypasses the InputManager singleton and calls Input.GetAxisRaw() and Input.GetButtonDown() directly. This breaks the input abstraction layer that PlayerCombat.cs correctly uses. The InputManager needs a float-parameterized move event and the PlayerController should subscribe to it.

Acceptance Criteria:

• InputManager exposes public UnityEvent(float) OnMoveInput for horizontal movement (-1 to 1)
• InputManager.Update() invokes OnMoveInput each frame with the current horizontal axis value
• PlayerController subscribes to InputManager.Instance.OnMoveInput and InputManager.Instance.OnJumpInput in OnEnable/OnDisable
• PlayerController no longer calls Input.GetAxisRaw() or Input.GetButtonDown() directly
• All existing movement and jump behavior is preserved

Code Region: Unity/Assets/Scripts/Player/PlayerController.cs, Unity/Assets/Scripts/Core/InputManager.cs

In Unity/Assets/Scripts/Core/InputManager.cs, add a new UnityEvent(float) called OnMoveInput that fires each Update with the current horizontal axis value. Also ensure OnJumpInput is already present (it is). Then update Unity/Assets/Scripts/Player/PlayerController.cs to remove the direct Input.GetAxisRaw("Horizontal") and Input.GetButtonDown("Jump") calls. Instead, subscribe to InputManager.Instance.OnMoveInput in OnEnable (storing the float as _moveInput) and subscribe to InputManager.Instance.OnJumpInput in OnEnable (calling Jump() when grounded). Unsubscribe in OnDisable. Keep all existing movement physics logic unchanged.

---

Task 2: Implement Double-Jump in PlayerController

Priority: High
Estimated Effort: Small
Focus Area: Core Gameplay / PRD Story 1 Compliance

Description:
PRD Story 1 acceptance criteria explicitly requires "Player can jump and double-jump with satisfying physics." The current PlayerController.HandleInput() only allows jumping when _isGrounded, with no jump count tracking.

Acceptance Criteria:

• PlayerController has a [SerializeField] private int _maxJumps = 2 field
• A private _jumpCount counter resets to 0 when the player lands (becomes grounded)
• The jump condition is _jumpCount < _maxJumps (not just _isGrounded)
• Each jump increments _jumpCount
• Second jump force can be slightly reduced (e.g., 80% of _jumpForce) for feel
• IsJumping and IsFalling properties continue to work correctly
• The PlayerAnimator can distinguish first vs. second jump if needed (expose JumpCount property)

Code Region: Unity/Assets/Scripts/Player/PlayerController.cs

In Unity/Assets/Scripts/Player/PlayerController.cs, add [SerializeField] private int _maxJumps = 2 and private int _jumpCount = 0 fields. In CheckGroundStatus(), when _isGrounded becomes true, reset _jumpCount = 0. In the jump condition, change the check from _isGrounded to _jumpCount < _maxJumps (remove the _isGrounded requirement from the jump button check). In Jump(), increment _jumpCount after applying the jump force. Optionally apply a slightly reduced force (multiply _jumpForce by 0.85f) when _jumpCount == 1 (the second jump). Add a public int JumpCount => _jumpCount property. Keep all other movement logic unchanged.

---

Task 3: Create AudioManager Singleton

Priority: High
Estimated Effort: Medium
Focus Area: Audio Architecture / PRD Story 7 Compliance

Description:
GameManager.Start() has a TODO for AudioManager initialization. Collectible.cs calls AudioSource.PlayClipAtPoint() directly. PRD Story 7 requires 15+ distinct SFX events and separate music/SFX volume controls. A centralized AudioManager is needed to support this at scale.

Acceptance Criteria:

• New file Unity/Assets/Scripts/Core/AudioManager.cs in namespace TaekwondoTech.Core
• Singleton pattern matching GameManager (persistent across scenes via DontDestroyOnLoad)
• PlaySFX(AudioClip clip) method plays a one-shot sound effect
• PlayMusic(AudioClip clip, bool loop = true) method plays background music
• StopMusic() method stops background music
• SFXVolume and MusicVolume float properties (0–1) with corresponding AudioSource references
• IsMuted bool property that silences all audio when true
• GameManager.Start() TODO comment is replaced with AudioManager.Instance check/initialization note
• Collectible.cs updated to call AudioManager.Instance.PlaySFX(_collectSound) if AudioManager exists, falling back gracefully if null

Code Region: Unity/Assets/Scripts/Core/AudioManager.cs (new file), Unity/Assets/Scripts/Core/GameManager.cs, Unity/Assets/Scripts/Collectibles/Collectible.cs

Create Unity/Assets/Scripts/Core/AudioManager.cs with namespace TaekwondoTech.Core. Implement a MonoBehaviour singleton (same DontDestroyOnLoad pattern as GameManager). Add two [SerializeField] AudioSource fields: _sfxSource and _musicSource. Add public methods: PlaySFX(AudioClip clip) that calls _sfxSource.PlayOneShot(clip) if clip != null, PlayMusic(AudioClip clip, bool loop = true) that sets _musicSource.clip and calls Play(), StopMusic() that calls _musicSource.Stop(). Add float SFXVolume and MusicVolume properties with getters/setters that update the AudioSource.volume. Add a bool IsMuted property that sets both AudioSource.mute. Add XML summary docs to each method. Then update Collectible.cs to use AudioManager.Instance?.PlaySFX(_collectSound) instead of AudioSource.PlayClipAtPoint. Update GameManager.cs to replace the AudioManager TODO comment with a note that AudioManager self-initializes.

---

Task 4: Create SaveSystem in Persistence Directory

Priority: Medium
Estimated Effort: Medium
Focus Area: Persistence / PRD Story 2 & 3 Compliance

Description:
The Persistence/ directory is empty. PRD Story 2 requires robot-part progress to save between sessions; Story 3 requires costume unlock state and active costume to persist. Currently GameManager._robotPartsCollected is in-memory only and resets on launch.

Acceptance Criteria:

• New file Unity/Assets/Scripts/Persistence/SaveSystem.cs in namespace TaekwondoTech.Persistence
• SaveData serializable class with fields: int robotPartsCollected, int[] unlockedCostumeIds, int activeCostumeId, int highScore
• SaveSystem.Save(SaveData data) writes JSON to Application.persistentDataPath/save.json
• SaveSystem.Load() returns a SaveData (or default/new if file doesn't exist)
• SaveSystem.Delete() removes the save file
• Static class (no MonoBehaviour needed) with all-static methods
• GameManager updated to call SaveSystem.Load() on startup and persist _robotPartsCollected on change
• XML summary docs on all public methods

Code Region: Unity/Assets/Scripts/Persistence/SaveSystem.cs (new file), Unity/Assets/Scripts/Core/GameManager.cs

Create Unity/Assets/Scripts/Persistence/SaveSystem.cs with namespace TaekwondoTech.Persistence. Define a [System.Serializable] class SaveData with fields: public int robotPartsCollected = 0, public int[] unlockedCostumeIds = new int[0], public int activeCostumeId = -1, public int highScore = 0. Implement a static class SaveSystem with: private static readonly string SavePath = System.IO.Path.Combine(Application.persistentDataPath, "save.json"); public static void Save(SaveData data) that serializes via JsonUtility.ToJson and writes to SavePath; public static SaveData Load() that reads SavePath if it exists and returns JsonUtility.FromJson(SaveData), otherwise returns new SaveData(); public static void Delete() that calls File.Delete(SavePath) if the file exists. Add XML summary docs. Then update GameManager.cs: in Start(), call var save = SaveSystem.Load() and set _robotPartsCollected = save.robotPartsCollected; in IncrementRobotParts(), after incrementing, call SaveSystem.Save(new SaveData { robotPartsCollected = _robotPartsCollected }).

---

Task 5: Scaffold CostumeManager and DragonCostume Data Model

Priority: Low
Estimated Effort: Small
Focus Area: Costume System Foundation / PRD Story 3 Compliance

Description:
The Costumes/ directory is empty. PRD Story 3 requires 10 dragon costumes + Legendary Mode. The CollectibleType.CostumeItem enum value already exists, indicating planned integration. Scaffolding the data model and manager now prevents future architecture debt.

Acceptance Criteria:

• New DragonCostumeData.cs ScriptableObject in Unity/Assets/Scripts/Costumes/ with fields: int costumeId, string costumeName, CostumeElement element, string specialMoveName, Sprite costumeSprite, AudioClip specialMoveSound, string unlockDescription
• CostumeElement enum with values: Fire, Water, Earth, Wind, Lightning, Ice, Shadow, Light, Nature, Cosmic, Legendary
• New CostumeManager.cs MonoBehaviour singleton in Unity/Assets/Scripts/Costumes/ with [SerializeField] DragonCostumeData[] _allCostumes
• CostumeManager.GetCostume(int id) returns the matching DragonCostumeData or null
• CostumeManager.ActiveCostumeId int property with getter/setter (setter triggers OnCostumeChanged UnityEvent)
• XML summary docs throughout

Code Region: Unity/Assets/Scripts/Costumes/DragonCostumeData.cs (new), Unity/Assets/Scripts/Costumes/CostumeManager.cs (new)

Create Unity/Assets/Scripts/Costumes/DragonCostumeData.cs with namespace TaekwondoTech.Costumes. Define a public enum CostumeElement { Fire, Water, Earth, Wind, Lightning, Ice, Shadow, Light, Nature, Cosmic, Legendary }. Define a [CreateAssetMenu(fileName = "DragonCostume", menuName = "TaekwondoTech/Dragon Costume")] public class DragonCostumeData : ScriptableObject with SerializeField fields: int _costumeId, string _costumeName, CostumeElement _element, string _specialMoveName, Sprite _costumeSprite, AudioClip _specialMoveSound, string _unlockDescription. Add public readonly properties for each. Then create Unity/Assets/Scripts/Costumes/CostumeManager.cs with namespace TaekwondoTech.Costumes. Implement a MonoBehaviour singleton (DontDestroyOnLoad pattern). Add [SerializeField] private DragonCostumeData[] _allCostumes. Add public DragonCostumeData GetCostume(int id) that returns the matching item from _allCostumes where costumeId == id, or null. Add private int _activeCostumeId = -1 and public UnityEvent(int) OnCostumeChanged. Add public int ActiveCostumeId property whose setter sets _activeCostumeId and invokes OnCostumeChanged. Add XML summary docs.

---

📊 Historical Context

Previous Focus Areas

Date	Focus Area	Type	Custom	Key Outcomes
2026-03-04	PRD Feature-to-Code Alignment	Custom	Yes	5 tasks generated covering input, double-jump, audio, save, costume systems

---

🎯 Recommendations

Immediate Actions (This Week)

1. Fix PlayerController input routing (Task 1) — unblocks cross-platform testing on iOS/Android — Priority: High
2. Add double-jump (Task 2) — ~30 lines, satisfies PRD Story 1 AC — Priority: High
3. Create AudioManager (Task 3) — prevents further direct AudioSource calls proliferating — Priority: High

Short-term Actions (This Month)

1. Implement SaveSystem (Task 4) — enables costume + robot-part persistence for playtesting — Priority: Medium
2. Scaffold CostumeManager (Task 5) — creates foundation for 10-costume system before it's needed by other systems — Priority: Medium

Long-term Actions (This Quarter)

1. Implement actual IPowerUp concrete classes in PowerUps/ directory
2. Replace legacy Input.* usage in InputManager with UnityEngine.InputSystem (New Input System) for full cross-platform robustness
3. Integrate SaveSystem with CostumeManager and ScoreManager for complete session persistence

---

📈 Success Metrics

Track these metrics to measure improvement in PRD Feature-to-Code Alignment:

• Empty system directories: 4 → 0 (after all tasks complete)
• Direct Input.* calls outside InputManager: 2 → 0
• PRD Story 1 ACs checked off: 2/6 → 4/6 (after Tasks 1 & 2)
• TODOs in GameManager: 2 → 0 (after Tasks 3 & 4)
• Persistence coverage: 0% → 100% for robot parts + active costume

---

Next Steps

1. Review and prioritize the 5 tasks above
2. Assign Tasks 1–3 to Copilot coding agent via planner agent (high priority)
3. Assign Tasks 4–5 after Tasks 1–3 are complete
4. Re-evaluate this focus area once the Costumes/ and PowerUps/ directories have implementations

---

Generated by Repository Quality Improvement Agent
Next analysis: 2026-03-05 — Focus area will be selected based on diversity algorithm

References: §22672419084

AI generated by Repository Quality Improvement Agent

• expires on Mar 5, 2026, 2:01 PM UTC

[github-actions[bot]]

This discussion was automatically closed because it expired on 2026-03-05T14:01:44.983Z.

Closed by Workflow