Backpack/Inventory System

## How It Works

The Backpack system provides a streamlined inventory solution using Unity's component-based architecture. At its core, the system uses an IPickable interface that any collectible item can implement, making it easy to turn any GameObject into a pickable item. When players approach items, the system automatically detects these IPickable objects through trigger collisions. The Backpack component, attached to the player, manages the entire inventory process - from item collection to storage and organization. Items are stored as ScriptableObjects (ItemSO), which efficiently maintain item data like properties, statistics, and visual elements. The system supports automatic stacking of similar items, drag-and-drop functionality for item management, and a flexible sorting system. Through the character panel interface, players can easily view, organize, and interact with their collected items. This modular design makes it simple to extend with new features or integrate with other game systems while maintaining optimal performance.

- The item pickup system operates through a streamlined process player enters a designated trigger zone containing a pickable item. 

- The system automatically detects any object implementing the IPickable interface within this zone.

- Once detected, the item's data (including type, quantity, and properties) is seamlessly transferred to the player's inventory through the Backpack component. - -- After successful transfer, the original item object in the game world is either destroyed or disabled based on configuration settings. 

This process ensures smooth item collection while maintaining game performance through efficient object management. The system also handles edge cases such as inventory full conditions and item stacking rules during the transfer process.

## Use Cases

- Rpg games

- Shooting games

### Benefits

- **Modular Design**

  - Easy to extend with new item types

  - Simple integration with existing game systems

  - Plug-and-play functionality

- **Performance Optimized**

  - Uses ScriptableObjects for efficient memory management

  - Minimizes garbage collection through object pooling

  - Efficient item stacking and management

- **Developer Friendly**

  - Clear separation of concerns

  - Easy debugging through interface implementation

  - Straightforward item creation workflow

- **Inventory Management**

   - Automatic stack management

   - Smart slot allocation

   - Dynamic capacity handling

   - Event-driven updates

- **UI Integration**

   - Real-time inventory updates

   - Dynamic slot generation

   - Tooltip system for item information