Video 21 - ItemParameters (durability)

Author: PetterSunnyVR

InventoryController.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Text;
 using UnityEngine;
 
 namespace Inventory
@@ -62,7 +63,7 @@ private void HandleItemActionRequest(int itemIndex)
             IItemAction itemAction = inventoryItem.item as IItemAction;
             if(itemAction != null)
             {
-                itemAction.PerformAction(gameObject);
+                itemAction.PerformAction(gameObject, null);
             }
             IDestroyableItem destroyableItem = inventoryItem.item as IDestroyableItem;
             if(destroyableItem != null)
@@ -93,8 +94,24 @@ private void HandleDescriptionRequest(int itemIndex)
                 return;
             }
             ItemSO item = inventoryItem.item;
+            string description = PrepareDescription(inventoryItem);
             inventoryUI.UpdateDescription(itemIndex, item.ItemImage,
-                item.name, item.Description);
+                item.name, description);
+        }
+
+        private string PrepareDescription(InventoryItem inventoryItem)
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append(inventoryItem.item.Description);
+            sb.AppendLine();
+            for (int i = 0; i < inventoryItem.itemState.Count; i++)
+            {
+                sb.Append($"{inventoryItem.itemState[i].itemParameter.ParameterName} " +
+                    $": {inventoryItem.itemState[i].value} / " +
+                    $"{inventoryItem.item.DefaultParametersList[i].value}");
+                sb.AppendLine();
+            }
+            return sb.ToString();
         }
 
         public void Update()

Model/EdibleItemSO.cs

@@ -15,7 +15,7 @@ public class EdibleItemSO : ItemSO, IDestroyableItem, IItemAction
 
         public AudioClip actionSFX {get; private set;}
 
-        public bool PerformAction(GameObject character)
+        public bool PerformAction(GameObject character, List<ItemParameter> itemState = null)
         {
             foreach (ModifierData data in modifiersData)
             {
@@ -34,7 +34,7 @@ public interface IItemAction
     {
         public string ActionName { get; }
         public AudioClip actionSFX { get; }
-        bool PerformAction(GameObject character);
+        bool PerformAction(GameObject character, List<ItemParameter> itemState);
     }
 
     [Serializable]

Model/EquippableItemSO.cs

@@ -2,17 +2,17 @@
 using System.Collections.Generic;
 using UnityEngine;
 
-public class EquippableItemSO : MonoBehaviour
+namespace Inventory.Model
 {
-    // Start is called before the first frame update
-    void Start()
+    public class EquippableItemSO : ItemSO, IDestroyableItem, IItemAction
     {
-        
-    }
+        public string ActionName => "Equip";
 
-    // Update is called once per frame
-    void Update()
-    {
-        
+        public AudioClip actionSFX { get; private set; }
+
+        public bool PerformAction(GameObject character, List<ItemParameter> itemState = null)
+        {
+            throw new System.NotImplementedException();
+        }
     }
-}
+}

Model/InventorySO.cs

@@ -26,15 +26,15 @@ public void Initialize()
             }
         }
 
-        public int AddItem(ItemSO item, int quantity)
+        public int AddItem(ItemSO item, int quantity, List<ItemParameter> itemState = null)
         {
             if(item.IsStackable == false)
             {
                 for (int i = 0; i < inventoryItems.Count; i++)
                 {
                     while(quantity > 0 && IsInventoryFull() == false)
                     {
-                        quantity -= AddItemToFirstFreeSlot(item, 1);
+                        quantity -= AddItemToFirstFreeSlot(item, 1, itemState);
                     }
                     InformAboutChange();
                     return quantity;
@@ -45,12 +45,15 @@ public int AddItem(ItemSO item, int quantity)
             return quantity;
         }
 
-        private int AddItemToFirstFreeSlot(ItemSO item, int quantity)
+        private int AddItemToFirstFreeSlot(ItemSO item, int quantity
+            , List<ItemParameter> itemState = null)
         {
             InventoryItem newItem = new InventoryItem
             {
                 item = item,
-                quantity = quantity
+                quantity = quantity,
+                itemState = 
+                new List<ItemParameter>(itemState == null ? item.DefaultParametersList : itemState)
             };
 
             for (int i = 0; i < inventoryItems.Count; i++)
@@ -162,6 +165,7 @@ public struct InventoryItem
     {
         public int quantity;
         public ItemSO item;
+        public List<ItemParameter> itemState;
         public bool IsEmpty => item == null;
 
         public InventoryItem ChangeQuantity(int newQuantity)
@@ -170,6 +174,7 @@ public InventoryItem ChangeQuantity(int newQuantity)
             {
                 item = this.item,
                 quantity = newQuantity,
+                itemState = new List<ItemParameter>(this.itemState)
             };
         }
 
@@ -178,6 +183,7 @@ public static InventoryItem GetEmptyItem()
             {
                 item = null,
                 quantity = 0,
+                itemState = new List<ItemParameter>()
             };
     }
 }

Model/ItemParameters.meta

@@ -0,0 +1,13 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Inventory.Model
+{
+    [CreateAssetMenu]
+    public class ItemParameterSO : ScriptableObject
+    {
+        [field: SerializeField]
+        public string ParameterName { get; private set; }
+    }
+}

Model/ItemParameters/ItemParameterSO.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
@@ -23,6 +24,22 @@ public abstract class ItemSO : ScriptableObject
 
         [field: SerializeField]
         public Sprite ItemImage { get; set; }
+
+        [field: SerializeField]
+        public List<ItemParameter> DefaultParametersList { get; set; }
+
+    }
+
+    [Serializable]
+    public struct ItemParameter : IEquatable<ItemParameter>
+    {
+        public ItemParameterSO itemParameter;
+        public float value;
+
+        public bool Equals(ItemParameter other)
+        {
+            return other.itemParameter == itemParameter;
+        }
     }
 }
 

Model/ItemParameters/ItemParameterSO.cs.meta

@@ -0,0 +1,14 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[CreateAssetMenu]
+public class CharacterStatHealthModifierSO : CharacterStatModifierSO
+{
+    public override void AffectCharacter(GameObject character, float val)
+    {
+        Health health = character.GetComponent<Health>();
+        if (health != null)
+            health.AddHealth((int)val);
+    }
+}

Model/ItemSO.cs

@@ -0,0 +1,8 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public abstract class CharacterStatModifierSO : ScriptableObject
+{
+    public abstract void AffectCharacter(GameObject character, float val);
+}