에셋 및 메타 데이터 추가

Assets/_DDD/_ScriptAssets/Prefabs/InventoryManager.prefab

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Assets/_DDD/_ScriptAssets/Prefabs/InventoryManager.prefab.meta

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Assets/_DDD/_Scripts/GameData/InventoryItemData.cs

@@ -0,0 +1,14 @@
+namespace DDD
+{
+    public class InventoryItemData : IId
+    {
+        public string Id { get; set; }
+        public int Quantity { get; set; }
+
+        public InventoryItemData(string id, int quantity)
+        {
+            Id = id;
+            Quantity = quantity;
+        }
+    }
+}

Assets/_DDD/_Scripts/GameData/InventoryItemData.cs.meta

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Assets/_DDD/_Scripts/GameData/InventoryManager.cs

@@ -0,0 +1,97 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using UnityEngine;
+
+namespace DDD
+{
+    public class InventoryManager : Singleton<InventoryManager>, IManager
+    {
+        private Dictionary<string, ItemData> _itemDataLookup;
+        private Dictionary<string, InventoryItemData> _inventoryItemDatas;
+        
+        public void PreInit()
+        {
+            
+        }
+
+        public Task Init()
+        {
+            return Task.CompletedTask;
+        }
+
+        public void PostInit()
+        {
+            InitializeItemData();
+        }
+
+        private void InitializeItemData()
+        {
+            var itemDataSo = DataManager.Instance.ItemDataSo;
+            
+            Debug.Assert(itemDataSo != null, "itemDataSo != null");
+
+            _itemDataLookup = itemDataSo.GetDataList()
+                .Where(item => !string.IsNullOrEmpty(item.Id))
+                .ToDictionary(item => item.Id, item => item);
+
+            _inventoryItemDatas = new Dictionary<string, InventoryItemData>(itemDataSo.GetDataCount());
+        }
+
+        public bool AddItem(string id, int quantity = 1)
+        {
+            if (!_itemDataLookup.ContainsKey(id))
+            {
+                Debug.LogError($"[Inventory] 등록되지 않은 아이템 ID: {id}");
+                return false;
+            }
+
+            if (_inventoryItemDatas.TryGetValue(id, out var itemData))
+            {
+                itemData.Quantity += quantity;
+            }
+            else
+            {
+                _inventoryItemDatas[id] = new InventoryItemData(id, quantity);
+            }
+
+            EventBus.Broadcast(new InventoryChangedEvent());
+            return true;
+        }
+
+        public bool RemoveItem(string id, int quantity = 1)
+        {
+            if (!_inventoryItemDatas.TryGetValue(id, out var itemData))
+            {
+                Debug.LogError($"[Inventory] 등록되지 않은 아이템 ID: {id}");
+                return false;
+            }
+            
+            if (itemData.Quantity < quantity)
+            {
+                Debug.LogWarning($"[Inventory] 보유 수량보다 삭제하는 수량이 더 많습니다 " +
+                                 $"{id}, 보유 수량 : {itemData.Quantity}, 삭제 수량 : {quantity}");
+                return false;
+            }
+            
+            itemData.Quantity -= quantity;
+
+            if (itemData.Quantity <= 0)
+            {
+                _inventoryItemDatas.Remove(id);
+            }
+            
+            EventBus.Broadcast(new InventoryChangedEvent());
+            return true;
+        }
+        
+        public IReadOnlyDictionary<string, InventoryItemData> InventoryItems => _inventoryItemDatas;
+        public bool TryGetItemData(string id, out ItemData itemData) => _itemDataLookup.TryGetValue(id, out itemData);
+        public int GetItemCount(string id) => _inventoryItemDatas.TryGetValue(id, out var itemData) ? itemData.Quantity : 0;
+        public ItemData GetItemDataByIdOrNull(string id)
+        {
+            _itemDataLookup.TryGetValue(id, out var itemData);
+            return itemData;
+        }
+    }
+}

Assets/_DDD/_Scripts/GameData/InventoryManager.cs.meta

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Assets/_DDD/_Scripts/GameEvent/GameEvents.cs

@@ -20,4 +20,9 @@ public class InteractionEvent : IEvent
         public GameObject Causer;
         public GameObject Target;
     }
+
+    public class InventoryChangedEvent : IEvent
+    {
+        
+    }
 }

Assets/_DDD/_Scripts/GenerateGoogleSheet/Core/DataSo.cs

@@ -20,5 +20,7 @@ public List<T> GetDataList()
         {
             return Datas;
         }
+        
+        public int GetDataCount() => Datas.Count;
     }
 }