Merge pull request #171 from Doprez/screenshot-extension

feat: Simple screenshot extension

src/Stride.CommunityToolkit/Engine/GameExtensions.cs

@@ -5,6 +5,7 @@
 using Stride.Engine;
 using Stride.Engine.Processors;
 using Stride.Games;
+using Stride.Graphics;
 using Stride.Physics;
 using Stride.Rendering;
 using Stride.Rendering.Colors;
@@ -616,6 +617,21 @@ public static Entity Create3DPrimitive(this IGame game, PrimitiveModelType type,
         return entity;
     }
 
+    /// <summary>
+    /// Saves a screenshot of the current frame to the specified file path.
+    /// </summary>
+    /// <param name="game"></param>
+    /// <param name="fileName">creates a file with this name</param>
+    /// <param name="fileType"></param>
+    public static void TakeScreenShot(this IGame game, string fileName, ImageFileType fileType = ImageFileType.Png)
+    {
+        using (var stream = File.Create(fileName))
+        {
+            var commandList = game.GraphicsContext.CommandList;
+            commandList.RenderTarget.Save(commandList, stream, fileType);
+        }
+    }
+
     /// <summary>
     /// Adds a scene renderer to the game's <see cref="GraphicsCompositor"/>.
     /// </summary>