fix: Add possibility to add ScriptComponent before running game (#2230)

sources/engine/Stride.Engine/Engine/Game.cs

@@ -225,6 +225,15 @@ namespace Stride.Engine
 
             VRDeviceSystem = new VRDeviceSystem(Services);
             Services.AddService(VRDeviceSystem);
+            // Add the input manager
+            // Add it first so that it can obtained by the UI system
+            var inputSystem = new InputSystem(Services);
+            Input = inputSystem.Manager;
+            Services.AddService(Input);
+            GameSystems.Add(inputSystem);
+
+            EffectSystem = new EffectSystem(Services);
+            Services.AddService(EffectSystem);
 
             // Creates the graphics device manager
             GraphicsDeviceManager = new GraphicsDeviceManager(this);
@@ -336,13 +345,6 @@ namespace Stride.Engine
             // (Unless overriden by gameSystem.UpdateOrder)
             // ---------------------------------------------------------
 
-            // Add the input manager
-            // Add it first so that it can obtained by the UI system
-            var inputSystem = new InputSystem(Services);
-            Input = inputSystem.Manager;
-            Services.AddService(Input);
-            GameSystems.Add(inputSystem);
-
             // Initialize the systems
             base.Initialize();
 
@@ -363,9 +365,6 @@ namespace Stride.Engine
             GameSystems.Add(DebugTextSystem);
             GameSystems.Add(ProfilingSystem);
 
-            EffectSystem = new EffectSystem(Services);
-            Services.AddService(EffectSystem);
-
             // If requested in game settings, compile effects remotely and/or notify new shader requests
             EffectSystem.Compiler = EffectCompilerFactory.CreateEffectCompiler(Content.FileProvider, EffectSystem, Settings?.PackageName, Settings?.EffectCompilation ?? EffectCompilationMode.Local, Settings?.RecordUsedEffects ?? false);
 

sources/engine/Stride.Games/GameBase.cs

@@ -90,6 +90,10 @@ namespace Stride.Games
 
             // Database file provider
             Services.AddService<IDatabaseFileProviderService>(new DatabaseFileProviderService(null));
+            // Content manager
+            Content = new ContentManager(Services);
+            Services.AddService<IContentManager>(Content);
+            Services.AddService(Content);
 
             LaunchParameters = new LaunchParameters();
             GameSystems = new GameSystemCollection(Services);
@@ -344,51 +348,49 @@ namespace Stride.Games
         {
             try
             {
-                using (var profile = Profiler.Begin(GameProfilingKeys.GameInitialize))
+                using var profile = Profiler.Begin(GameProfilingKeys.GameInitialize);
+                // Initialize this instance and all game systems before trying to create the device.
+                Initialize();
+
+                // Make sure that the device is already created
+                graphicsDeviceManager.CreateDevice();
+
+                // Gets the graphics device service
+                graphicsDeviceService = Services.GetService<IGraphicsDeviceService>();
+                if (graphicsDeviceService == null)
                 {
-                    // Initialize this instance and all game systems before trying to create the device.
-                    Initialize();
-
-                    // Make sure that the device is already created
-                    graphicsDeviceManager.CreateDevice();
-
-                    // Gets the graphics device service
-                    graphicsDeviceService = Services.GetService<IGraphicsDeviceService>();
-                    if (graphicsDeviceService == null)
-                    {
-                        throw new InvalidOperationException("No GraphicsDeviceService found");
-                    }
-
-                    // Checks the graphics device
-                    if (graphicsDeviceService.GraphicsDevice == null)
-                    {
-                        throw new InvalidOperationException("No GraphicsDevice found");
-                    }
-
-                    // Setup the graphics device if it was not already setup.
-                    SetupGraphicsDeviceEvents();
-
-                    // Bind Graphics Context enabling initialize to use GL API eg. SetData to texture ...etc
-                    BeginDraw();
-
-                    LoadContentInternal();
-
-                    IsRunning = true;
-
-                    BeginRun();
-
-                    autoTickTimer.Reset();
-                    UpdateTime.Reset(UpdateTime.Total);
-
-                    // Run the first time an update
-                    using (Profiler.Begin(GameProfilingKeys.GameUpdate))
-                    {
-                        Update(UpdateTime);
-                    }
-
-                    // Unbind Graphics Context without presenting
-                    EndDraw(false);
+                    throw new InvalidOperationException("No GraphicsDeviceService found");
                 }
+
+                // Checks the graphics device
+                if (graphicsDeviceService.GraphicsDevice == null)
+                {
+                    throw new InvalidOperationException("No GraphicsDevice found");
+                }
+
+                // Setup the graphics device if it was not already setup.
+                SetupGraphicsDeviceEvents();
+
+                // Bind Graphics Context enabling initialize to use GL API eg. SetData to texture ...etc
+                BeginDraw();
+
+                LoadContentInternal();
+
+                IsRunning = true;
+
+                BeginRun();
+
+                autoTickTimer.Reset();
+                UpdateTime.Reset(UpdateTime.Total);
+
+                // Run the first time an update
+                using (Profiler.Begin(GameProfilingKeys.GameUpdate))
+                {
+                    Update(UpdateTime);
+                }
+
+                // Unbind Graphics Context without presenting
+                EndDraw(false);
             }
             catch (Exception ex)
             {
@@ -471,13 +473,7 @@ namespace Stride.Games
         /// <summary>
         /// Creates or updates <see cref="Context"/> before window and device are created.
         /// </summary>
-        protected virtual void PrepareContext()
-        {
-            // Content manager
-            Content = new ContentManager(Services);
-            Services.AddService<IContentManager>(Content);
-            Services.AddService(Content);
-        }
+        protected virtual void PrepareContext()  {  }
 
         /// <summary>
         /// Prevents calls to Draw until the next Update.
@@ -717,27 +713,18 @@ namespace Stride.Games
                 for (int i = 0; i < array.Length; i++)
                 {
                     var disposable = array[i] as IDisposable;
-                    if (disposable != null)
-                    {
-                        disposable.Dispose();
-                    }
+                    disposable?.Dispose();
                 }
 
                 // Reset graphics context
                 GraphicsContext = null;
 
                 var disposableGraphicsManager = graphicsDeviceManager as IDisposable;
-                if (disposableGraphicsManager != null)
-                {
-                    disposableGraphicsManager.Dispose();
-                }
+                disposableGraphicsManager?.Dispose();
 
                 DisposeGraphicsDeviceEvents();
 
-                if (gamePlatform != null)
-                {
-                    gamePlatform.Release();
-                }
+                gamePlatform?.Release();
             }
         }