Add scene for testing loading objects and simulator from lot

Assets/Scenes/Tests/LotObjectSimulationTest.unity

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Assets/Scenes/Tests/LotObjectSimulationTest.unity.meta

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Assets/Scripts/OpenTS2/Engine/Tests/LotObjectSimulationTest.cs

@@ -0,0 +1,73 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using OpenTS2.Common;
+using OpenTS2.Content;
+using OpenTS2.Content.DBPF;
+using OpenTS2.Files;
+using OpenTS2.Files.Formats.DBPF;
+using UnityEngine;
+
+namespace OpenTS2.Engine.Tests
+{
+    /// <summary>
+    /// Tests loading an object from a lot and then running the SimAntics simulator on it.
+    /// </summary>
+    public class LotObjectSimulationTest : MonoBehaviour
+    {
+        public string NeighborhoodPrefix = "N002";
+        public int LotID = 22;
+        // Which item to load from the lot save table.
+        public int ItemIndex = 0;
+
+        private string _nhood;
+        private int _lotId;
+
+        void Start()
+        {
+            Core.InitializeCore();
+
+            ContentLoading.LoadGameContentSync();
+
+            CatalogManager.Instance.Initialize();
+            ObjectManager.Create();
+
+            LoadLot(NeighborhoodPrefix, LotID);
+        }
+
+        private void LoadLot(string neighborhoodPrefix, int id)
+        {
+            _nhood = neighborhoodPrefix;
+            _lotId = id;
+
+            var contentManager = ContentManager.Instance;
+
+            var lotsFolderPath = Path.Combine(Filesystem.UserDataDirectory, $"Neighborhoods/{NeighborhoodPrefix}/Lots");
+            var lotFilename = $"{NeighborhoodPrefix}_Lot{LotID}.package";
+            var lotFullPath = Path.Combine(lotsFolderPath, lotFilename);
+
+            if (!File.Exists(lotFullPath))
+            {
+                return;
+            }
+
+            var lotPackage = contentManager.AddPackage(lotFullPath);
+            // Get the lot's OBJT / object save type table.
+            var saveTable =
+                lotPackage.GetAssetByTGI<ObjectSaveTypeTableAsset>(new ResourceKey(instanceID: 0, GroupIDs.Local,
+                    TypeIDs.OBJ_SAVE_TYPE_TABLE));
+
+            var objectToLoad = saveTable.Selectors[ItemIndex];
+            Debug.Log($"Loading object {objectToLoad.catalogResourceName} with guid {objectToLoad.objectGuid:X}");
+
+            var objectDefinition = ObjectManager.Instance.GetObjectByGUID(objectToLoad.objectGuid);
+            Debug.Assert(objectDefinition != null, "Could not find objd.");
+
+            // Now load the state of the object.
+            var objectState =
+                lotPackage.GetAssetByTGI<SimsObjectAsset>(
+                    new ResourceKey(instanceID: (uint)objectToLoad.saveType, GroupIDs.Local, TypeIDs.XOBJ));
+            Debug.Log($"object state: {objectState}");
+        }
+    }
+}

Assets/Scripts/OpenTS2/Engine/Tests/LotObjectSimulationTest.cs.meta

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README.md

@@ -43,6 +43,8 @@ We follow the layout of a normal Unity project except:
 
 * `Assets/Scripts/OpenTS2` - Contains the bulk of the C# code that deals with TS2 formats and files.
 * `Assets/Tests/OpenTS2/` - Unit tests following the same directory structure as the `Scripts` folder.
+* `Assets/Scenes/Test` - Tests but more at the integration level involving Unity scenes.
+  * `Assets/Scripts/OpenTS2/Engine/Tests` - Controller scripts for the above tests.
 
 ## Testing