Engine.Integration/Engine.Integration.MonoGame/Behaviours/SpriteBatcher.cs

@@ -1,5 +1,7 @@
 using System.Collections.Generic;
 
+using Microsoft.Xna.Framework.Graphics;
+
 using Engine.Core;
 
 namespace Engine.Integration.MonoGame;
@@ -12,6 +14,7 @@ public class SpriteBatcher : Behaviour, IFirstFrameUpdate, IDraw
     private ISpriteBatch spriteBatch = null!;
     private MonoGameCamera2D camera2D = null!;
 
+    private readonly RasterizerState rasterizerState = new() { CullMode = CullMode.CullClockwiseFace };
     private readonly ActiveBehaviourCollectorOrdered<int, IDrawableSprite> drawableSprites = new(GetPriority(), SortByPriority());
 
     public void FirstActiveFrame()
@@ -26,7 +29,13 @@ public class SpriteBatcher : Behaviour, IFirstFrameUpdate, IDraw
 
     public void Draw()
     {
-        spriteBatch.Begin(transformMatrix: camera2D.ViewMatrix.ToXnaMatrix());
+        Matrix4x4 transformMatrix = Matrix4x4.Identity
+            .ApplyTranslation(new Vector2D(camera2D.Viewport.X, camera2D.Viewport.Y) * .5f)
+            .ApplyScale(new Vector3D(1f, -1f, 1f))
+            .ApplyMatrix(camera2D.ViewMatrix)
+            .Transposed;
+
+        spriteBatch.Begin(transformMatrix: transformMatrix.ToXnaMatrix(), rasterizerState: rasterizerState);
         for (int i = 0; i < drawableSprites.Count; i++)
             drawableSprites[i].Draw(spriteBatch);
         spriteBatch.End();