Removed Subrepository

C#/OpenGLTutorial/Rendering/Cameras/Camera2D.cs

@@ -0,0 +1,26 @@
+using System.Numerics;
+using OpenGLTutorial.Rendering.Display;
+
+namespace OpenGLTutorial.Rendering.Cameras {
+    public class Camera2D {
+        public Vector2 FocusPosition { get; set; }
+        public float Zoom { get; set; }
+
+        public Camera2D(Vector2 focusPosition, float zoom) {
+            FocusPosition = focusPosition;
+            Zoom = zoom;
+        }
+
+        public Matrix4x4 GetProjectionMatrix() {
+            float left = FocusPosition.X - DisplayManager.WindowSize.Width / 2f;
+            float right = FocusPosition.X + DisplayManager.WindowSize.Width / 2f;
+            float top = FocusPosition.Y - DisplayManager.WindowSize.Height / 2f;
+            float bottom = FocusPosition.Y + DisplayManager.WindowSize.Height / 2f;
+            
+            Matrix4x4 orthoMatrix = Matrix4x4.CreateOrthographicOffCenter(left, right, bottom, top, 0.01f, 100.0f);
+            Matrix4x4 zoomMatrix = Matrix4x4.CreateScale(Zoom);
+
+            return orthoMatrix * zoomMatrix;
+        }
+    }
+}