riversong code showcase

Source/Engine/GameData/GameDatabaseSystem.cs

@@ -0,0 +1,37 @@
+using Cysharp.Threading.Tasks;
+using UnityEngine.AddressableAssets;
+using Object = UnityEngine.Object;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    [GameSystemGroup(typeof(EarlyGameSystemGroup))]
+    public class GameDatabaseSystem : GameSystem, IInitializable, IServiceProvider
+    {
+        public const string GameDataAddressablesKey = "GameData";
+
+        private GameDatabase _gameDatabase;
+
+        public GameDatabaseSystem(IServiceLocator serviceLocator) : base(serviceLocator)
+        {
+        }
+
+        public void RegisterServices(IServiceLocator serviceLocator)
+        {
+            _gameDatabase = new GameDatabase();
+            ServiceLocator.RegisterService<IGameDatabase>(_gameDatabase);
+        }
+
+        public async UniTask InitializeAsync()
+        {
+            await Addressables.LoadAssetsAsync<Object>(GameDataAddressablesKey, OnAssetLoaded);
+        }
+
+        private void OnAssetLoaded(Object asset)
+        {
+            var id = asset.GetInstanceID();
+            id = unchecked(id + 0x40000000);
+
+            _gameDatabase.Add(id, asset);
+        }
+    }
+}