# Card System Implementation Plan

## Current Implementation Analysis

### Data Layer

1. **CardData.cs**:
   - Represents an instance of a card in the player's collection
   - Contains unique ID, rarity, and copies owned
   - Has a reference to its CardDefinition for display information
   - Includes methods for rarity upgrades when collecting duplicates
   - Well-structured with proper serialization support

2. **CardDefinition.cs**:
   - ScriptableObject template for creating card instances
   - Contains basic info (name, description), visuals, and collection data
   - Provides helper methods like CreateCardData() and GetBackgroundColor()
   - Supports different zones (AppleHills, Quarry, Forest, Mountain, Beach)

3. **CardSystemManager.cs**:
   - Singleton manager for the card system
   - Manages available card definitions and player inventory
   - Includes event callbacks for booster packs and card collection
   - Implements functionality for adding and opening booster packs

4. **CardInventory.cs**:
   - Fully implemented management of the player's card collection
   - Includes methods for adding cards and tracking booster packs
   - Provides filtering methods for different card types
   - Supports card lookup by various properties (zone, rarity)

5. **CardVisualConfig.cs**:
   - ScriptableObject for configuring the visual appearance of cards
   - Maps rarities to colors and zones to colors/shapes
   - Uses dictionary lookups for efficient access

### UI Layer

1. **CardUIElement.cs**:
   - Handles displaying a single card in the UI
   - Updates visuals based on card data (rarity, zone)
   - References UI elements like card name text, images, frames, etc.

2. **UIPageController.cs**:
   - Manages UI page transitions with a stack-based navigation system
   - Provides methods for pushing, popping, and clearing the page stack
   - Uses events to notify when pages change

3. **UI Page Components**:
   - **CardMenuPage.cs**: Main menu for card system navigation
   - **AlbumViewPage.cs**: Simplified implementation that shows filtered cards in grid
   - **BoosterOpeningPage.cs**: Interactive card reveal experience
   - **CardAlbumUI.cs**: Main controller for the card system UI
   - **UIPage.cs**: Base class for common page functionality

## Implementation Status

### Completed
1. **Complete CardInventory Implementation**:
   - Full implementation with methods to manage the player's card collection
   - Filtering, sorting, and organization features
   - Integration with CardSystemManager

2. **Booster Pack Generation**:
   - Logic to generate random booster packs with appropriate rarity distribution
   - Methods for awarding booster packs to the player
   - Events for notifying UI when booster packs are obtained

3. **Card Collection UI**:
   - Simplified album browsing UI with filtering and sorting options
   - Removed unnecessary card stack and slot system
   - Updated AlbumViewPage to use TextMeshPro components

4. **Booster Pack Opening UI (In Progress)**:
   - Implemented interactive card reveal system
   - Added card back prefabs for clickable reveal experience
   - Created flip animations and particle effects for card reveals
   - Updated to support revealing three cards individually

### Still Needed
1. **Booster Opening UI Refinement**:
   - Fine-tune animation timings and transitions
   - Implement custom card back designs
   - Add more visual/audio feedback for different rarities

2. **Save/Load System**:
   - Implement persistence for the player's card collection
   - Add autosave functionality for cards and booster packs

3. **Card Collection Statistics**:
   - Add UI for tracking collection completion
   - Implement achievements for collecting sets

## Next Steps

### 1. Complete the Booster Opening Experience
- Create proper card back prefab with appropriate design
- Test and refine the card reveal animations
- Ensure particle effects and sounds play correctly

### 2. Add Save/Load System
- Implement JSON serialization for CardInventory
- Add autosave triggers after obtaining new cards
- Create save/load methods in CardSystemManager

### 3. Polish the Overall Experience
- Add transition animations between pages
- Improve visual feedback for obtaining new cards
- Implement collection statistics display

### 4. Additional Features (Optional)
- Special collection bonuses for completing sets
- Card trading system with NPCs
- Card usage mechanics beyond collection