Added Unity project files

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimException.cs

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+using System;
+
+namespace VRC.SDK3.ClientSim
+{
+    /// <summary>
+    /// A wrapper for exceptions that can easily be checked in Tests.
+    /// </summary>
+    public class ClientSimException : Exception
+    {
+        public ClientSimException(string message) : base(message) { }
+    }
+}

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimException.cs.meta

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+fileFormatVersion: 2
+guid: e2f5207114724364a99c23559907bd69
+timeCreated: 1640206766

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimExtensions.cs

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+using UnityEngine;
+using VRC.SDKBase;
+
+namespace VRC.SDK3.ClientSim
+{
+    public static class ClientSimExtensions
+    {
+        #region VRCPlayerApi 
+
+        public static ClientSimPlayerController GetPlayerController(this VRCPlayerApi player)
+        {
+            return player.GetClientSimPlayer().GetPlayerController();
+        }
+
+        public static ClientSimPlayer GetClientSimPlayer(this VRCPlayerApi player)
+        {
+            // Check if the object exists and has not been destroyed due to playmode end.
+            if (player.gameObject != null)
+            {
+                return player.gameObject.GetComponent<ClientSimPlayer>();
+            }
+            return null;
+        }
+
+        #endregion
+
+        #region ClientSimBehaviour
+        
+        internal static void PreventComponentFromSaving(this MonoBehaviour behaviour)
+        {
+            // Ensure that no components are ever saved in user project files.
+            behaviour.hideFlags = HideFlags.DontSaveInEditor | HideFlags.DontSaveInBuild;
+        }
+
+        #endregion
+        
+        #region Logging
+
+        internal static void Log(string area, string message)
+        {
+            if (ClientSimSettings.Instance.displayLogs)
+            {
+                Debug.Log("[" + System.DateTime.Now.ToString("hh:mm:ss.fff") + "][" + area + "] " + message);
+            }
+        }
+
+        internal static void Log(this object obj, string message)
+        {
+            Log(obj.GetType().Name, message);
+        }
+        
+        internal static void LogWarning(string area, string message)
+        {
+            Debug.LogWarning("[" + System.DateTime.Now.ToString("hh:mm:ss.fff") + "][" + area + "] " + message);
+        }
+
+        internal static void LogWarning(this object obj, string message)
+        {
+            LogWarning(obj.GetType().Name, message);
+        }
+
+        internal static void LogError(string area, string message)
+        {
+            Debug.LogError("[" + System.DateTime.Now.ToString("hh:mm:ss.fff") + "][" + area + "] " + message);
+        }
+
+        internal static void LogError(this object obj, string message)
+        {
+            LogError(obj.GetType().Name, message);
+        }
+
+        #endregion
+    }
+}

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimExtensions.cs.meta

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+fileFormatVersion: 2
+guid: 2aa1cbed33daf8245ab8d7cef3540953
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimObjectCollection.cs

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+using System.Collections.Generic;
+
+namespace VRC.SDK3.ClientSim
+{
+    /// <summary>
+    /// This class is for holding a container of objects that can be deleted at any time.
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    public class ClientSimObjectCollection<T>
+    {
+        private bool _shouldVerifyObjectList;
+        private readonly Queue<T> _toBeAdded = new Queue<T>();
+        private readonly Queue<T> _toBeRemoved = new Queue<T>();
+        private List<T> _allObjects = new List<T>();
+
+        public void AddObject(T obj)
+        {
+            if (obj == null)
+            {
+                return;
+            }
+            _toBeAdded.Enqueue(obj);
+        }
+
+        public void RemoveObject(T obj)
+        {
+            _shouldVerifyObjectList = true;
+            _toBeRemoved.Enqueue(obj);
+        }
+
+        public void ShouldVerifyObjects()
+        {
+            _shouldVerifyObjectList = true;
+        }
+
+        public void ProcessAddedAndRemovedObjects()
+        {
+            if (_toBeAdded.Count > 0)
+            {
+                foreach (var objs in _toBeAdded)
+                {
+                    if (objs == null)
+                    {
+                        _shouldVerifyObjectList = true;
+                        continue;
+                    }
+                    _allObjects.Add(objs);
+                }
+                _toBeAdded.Clear();
+            }
+            if (_toBeRemoved.Count > 0)
+            {
+                foreach (var objs in _toBeRemoved)
+                {
+                    if (objs == null)
+                    {
+                        _shouldVerifyObjectList = true;
+                        continue;
+                    }
+                    _allObjects.Remove(objs);
+                }
+                _toBeRemoved.Clear();
+            }
+
+            if (_shouldVerifyObjectList)
+            {
+                List<T> allObjs = new List<T>();
+                foreach (var objs in _allObjects)
+                {
+                    if (objs == null)
+                    {
+                        continue;
+                    }
+                    allObjs.Add(objs);
+                }
+
+                _allObjects = allObjs;
+            }
+        }
+
+        public IEnumerable<T> GetObjects()
+        {
+            foreach (var obj in _allObjects)
+            {
+                if (obj == null)
+                {
+                    continue;
+                }
+
+                yield return obj;
+            }
+        }
+    }
+}

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimObjectCollection.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: e25aff8547ec4e39afc88d6b02fd56d2
+timeCreated: 1638897075

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimResourceLoader.cs

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+#if UNITY_EDITOR
+
+using UnityEditor.PackageManager;
+
+namespace VRC.SDK3.ClientSim
+{
+    public static class ClientSimResourceLoader
+    {
+        private const string PACKAGE_PATH = "Packages/com.vrchat.clientsim";
+
+        public static PackageInfo GetPackageInfo()
+        {    
+            return PackageInfo.FindForAssetPath(PACKAGE_PATH);
+        }
+
+        public static string GetVersion()
+        {
+            var package = GetPackageInfo();
+            if (package != null)
+            {
+                return package.version;
+            }
+
+            return "";
+        }
+
+        public static string GetPackagePath()
+        {
+            var package = GetPackageInfo();
+            if (package != null)
+            {
+                return package.assetPath;
+            }
+
+            return "";
+        }
+
+        public static string GetResolvePath()
+        {
+            var package = GetPackageInfo();
+            if (package != null)
+            {
+                return package.resolvedPath;
+            }
+            
+            // TODO find package path based on known asset in the case where a user installs ClientSim not as a package.
+            return "";
+        }
+    }
+}
+#endif

Packages/com.vrchat.worlds/Integrations/ClientSim/Runtime/Utilities/ClientSimResourceLoader.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: ad42e5696f9d49de93f3282a9b9de082
+timeCreated: 1638822659