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A basic setup for displaying the inventory items in the Unity UI.

using UnityEngine;
using UnityEngine.UI;

public class InventoryUI : MonoBehaviour
{
    public Inventory inventory;
    public GameObject inventoryPanel;
    public GameObject inventorySlotPrefab;

    void Start()
    {
        RefreshInventoryUI();
    }

    public void RefreshInventoryUI()
    {
        // Clear existing UI elements
        foreach (Transform child in inventoryPanel.transform)
        {
            Destroy(child.gameObject);
        }

        // Create new UI elements
        foreach (Item item in inventory.items)
        {
            GameObject slot = Instantiate(inventorySlotPrefab, inventoryPanel.transform);
            Image iconImage = slot.transform.GetChild(0).GetComponent<Image>();
            iconImage.sprite = item.icon;

            // Add more UI logic as needed (like item count for stackable items)
        }
    }
}