Unity Simple Inventory System

Author

TOP bar: Add items and increase time counter.
Inventory panel (right-bottom corner): Inventory UI showing the items stored in the inventory and allowing to interact with them.
Each inventory panel slot shows the items monetary/gold value (yellow color), weight (white) and duration (purple).

MouseLeftClick - Add item or increase time (top buttons) or activate an item in the inventory (if possible).
MouseRightClick - Sell an item in the inventory (if possible).
MouseMiddleClick - Drop (remove) an item in the inventory.
Mouse hover - Show the details of an item in the inventory.
I - Show/Hide inventory.

The inventory slots are created when the game starts, the number of slots (and max weight) can be changed from the Inventory script attached to the Player object.
The game items Item (scriptable objects) can be created using the Create/Items menu option in the project tab.
The inventory UI and Actions managers (sell, drop, activate) point to the Inventory system.
Once a game Item is stored in the Inventory, it is encapsulated in a InventoryItem which contains the duration and value.
Despite that not every item needs a duration and a value, I decided to implement it as virtual methods to avoid the excessive types parsing.

/Items: Game items definition.

/Scripts: The developed scripts.

The controls UI elements have been implemented in a quicker and least ideal way than the rest of the project elements, since their only prupose is to test the inventory system.