using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class Inventory : MonoBehaviour
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{
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public static Inventory Instance { get; private set; }
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public List<InventorySlot> items = new List<InventorySlot>();
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public int maxInventorySize = 20;
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private void Awake()
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{
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if (Instance == null)
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{
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Instance = this;
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}
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else
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{
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Destroy(gameObject);
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}
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if (SaveSystem.isGameLoaded)
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{
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LoadInventory();
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}
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}
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private void LoadInventory()
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{
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SaveDataPlayer save = SaveSystem.LoadPlayer();
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if (save != null)
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{
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foreach (SaveDataInventorySlot item in save.inventoryItems)
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{
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Item loadedItem = ItemDatabase.Instance.GetItem(item.itemId);
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if (loadedItem != null)
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{
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items.Add(new InventorySlot(loadedItem, item.quantity));
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}
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else
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{
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Debug.LogError($"Failed to load item with ID: {item.itemId}");
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}
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}
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}
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}
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public bool AddItem(Item item, int quantity = 1)
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{
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if (items.Count >= maxInventorySize && !item.isStackable)
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{
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//TODO: Show inventory full message
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Debug.Log("Inventory is full");
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return false;
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}
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InventorySlot existingSlot = items.Find(slot => slot.item.itemName == item.itemName);
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if (existingSlot != null && item.isStackable)
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{
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//Add to existing stack
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if (existingSlot.quantity + quantity <= item.maxStackSize)
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{
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existingSlot.quantity += quantity;
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}
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else
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{
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int remainingQuantity = item.maxStackSize - existingSlot.quantity;
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existingSlot.quantity = item.maxStackSize;
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//TODO: Show inventory overflow message
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Debug.Log("Inventory overflow");
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existingSlot.quantity += remainingQuantity;
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}
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}
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else
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{
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//Add new item to inventory
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items.Add(new InventorySlot(item, quantity));
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}
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GameStateEvents.inventoryChanged?.Invoke();
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return true;
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}
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public void RemoveItem(Item item, int quantity = 1)
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{
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InventorySlot existingSlot = items.Find(slot => slot.item.itemName == item.itemName);
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if (existingSlot != null)
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{
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if (existingSlot.quantity > quantity)
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{
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existingSlot.quantity -= quantity;
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}
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else
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{
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items.Remove(existingSlot);
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}
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}
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GameStateEvents.inventoryChanged?.Invoke();
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}
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}
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[System.Serializable]
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public class InventorySlot
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{
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public Item item;
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public int quantity;
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public InventorySlot(Item item, int quantity)
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{
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this.item = item;
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this.quantity = quantity;
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}
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}
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