Inventory System Base (from official thread) (#100)

* Added the basic inventory system

* Removed prefixes, added CreateAssetMenu to ingredient

* Added CreateAssetMenu to Inventory

* Updated to use tabs and prefixes

* Added prefix to inventory item

* Added a means to iterate over items in Inventory

* Moved accessor

* Spaces to tabs (again)

* Added default assignment to prevent warning

* Added a CustomEditor for Inventory

* added Items according to @chema descrription.

* Marked out item type

* follow code convention

* Added character Customization script.
Added folder structure for scripable objects

* removed marked out lines

* Changed Inventory to contain a list of ItemStacks instead of a dictrionary of Items.

* added item background color

* Reimplemented all the methods in Inventory.cs to work better with List.

* simplified member field namings

* made changed according to request by @Ciro_unity - moved scirpable objects to i...

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UOP1_Project/Assets/Scripts/Inventory/InventoryController.cs

+using UnityEngine;
+
+// Created with collaboration from:
+// https://forum.unity.com/threads/inventory-system.980646/
+public class InventoryController : MonoBehaviour
+{
+	[SerializeField]
+	private Inventory _inventory = default;
+
+	private void OnTriggerEnter(Collider other)
+	{
+		if (other.TryGetComponent<ItemInstance>(out ItemInstance itemInstance))
+		{
+			_inventory.Add(itemInstance.Item);
+			Destroy(itemInstance);
+		}
+	}
+}

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UOP1_Project/Assets/Scripts/Inventory/ItemInstance.cs

+using UnityEngine;
+
+// Created with collaboration from:
+// https://forum.unity.com/threads/inventory-system.980646/
+public class ItemInstance : MonoBehaviour
+{
+	[SerializeField]
+	private Item _item;
+
+	public Item Item => _item;
+}

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UOP1_Project/Assets/Scripts/Inventory/ItemStack.cs

+public class ItemStack
+{
+    public Item Item { get; }
+
+    public int Amount { get; set; }
+
+    public ItemStack(Item item, int amount)
+    {
+        Item = item;
+        Amount = amount;
+    }
+}

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UOP1_Project/Assets/Scripts/Inventory/ScriptableObjects/Inventory.cs

+using System.Collections.Generic;
+using UnityEngine;
+
+// Created with collaboration from:
+// https://forum.unity.com/threads/inventory-system.980646/
+[CreateAssetMenu(fileName = "Inventory", menuName = "Inventory/Inventory", order = 51)]
+public class Inventory : ScriptableObject
+{
+	[Tooltip("The collection of items and their quantities.")]
+	[SerializeField]
+	private List<ItemStack> _items = new List<ItemStack>();
+
+	public List<ItemStack> Items => _items;
+
+    public void Add(Item item, int count = 1)
+    {
+        if (count <= 0)
+            return;
+
+        for (int i = 0; i < _items.Count; i++)
+        {
+            ItemStack currentItemStack = _items[i];
+            if (item == currentItemStack.Item)
+            {
+                currentItemStack.Amount += count;
+                return;
+            }
+        }
+
+        _items.Add(new ItemStack(item, count));
+    }
+
+    public void Remove(Item item, int count = 1)
+    {
+        if (count <= 0)
+            return;
+
+        for (int i = 0; i < _items.Count; i++)
+        {
+            ItemStack currentItemStack = _items[i];
+
+            if (currentItemStack.Item == item)
+            {
+                currentItemStack.Amount -= count;
+
+                if (currentItemStack.Amount <= 0)
+                    _items.Remove(currentItemStack);
+
+                return;
+            }
+        }
+    }
+
+    public bool Contains(Item item)
+    {
+        for (int i = 0; i < _items.Count; i++)
+        {
+            if (item == _items[i].Item)
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public int Count(Item item)
+    {
+        for (int i = 0; i < _items.Count; i++)
+        {
+            ItemStack currentItemStack = _items[i];
+            if (item == currentItemStack.Item)
+            {
+                return currentItemStack.Amount;
+            }
+        }
+
+        return 0;
+    }
+}

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UOP1_Project/Assets/Scripts/Inventory/ScriptableObjects/Item.cs

+using UnityEngine;
+
+// Created with collaboration from:
+// https://forum.unity.com/threads/inventory-system.980646/
+[CreateAssetMenu(fileName = "Item", menuName = "Inventory/Item", order = 51)]
+public class Item : ScriptableObject
+{
+	[Tooltip("The name of the item")]
+	[SerializeField]
+	private string _name;
+
+	[Tooltip("A preview image for the item")]
+	[SerializeField]
+	private Sprite _previewImage;
+
+	[Tooltip("A description of the item")]
+	[SerializeField]
+	[Multiline]
+	private string _description;
+
+
+	[Tooltip("The type of item")]
+	[SerializeField]
+	private ItemType _itemType;
+
+	[Tooltip("A prefab reference for the model of the item")]
+	[SerializeField]
+	private GameObject _prefab;
+
+	public string Name => _name;
+	public Sprite PreviewImage => _previewImage;
+	public string Description => _description;
+	public ItemType ItemType => _itemType;
+	public GameObject Prefab => _prefab;
+
+}

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UOP1_Project/Assets/Scripts/Inventory/ScriptableObjects/ItemType.cs

+using UnityEngine;
+
+// Created with collaboration from:
+// https://forum.unity.com/threads/inventory-system.980646/
+[CreateAssetMenu(fileName = "ItemType", menuName = "Inventory/ItemType", order = 51)]
+public class ItemType : ScriptableObject
+{
+	[Tooltip("The action associated with the item type")]
+	[SerializeField]
+	private string _actionName;
+
+	public string ActionName => _actionName;
+}

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