fixed movement

Camera.cs

@@ -9,9 +9,14 @@ namespace Voxel
         public static float Pitch = -22.5f;
         public static float Yaw = 0f;
         public static float FOV = 60f;
+        public static float TargetFOV = FOV;
+        public static float FOVLerpSpeed = 10f;
         public static float Speed = 5f;
         public static float ShiftSpeed = 20f;
 
+        private static int _width;
+        private static int _height;
+
         public static Matrix4 view =>
             Matrix4.LookAt(Position, Position + Front, Vector3.UnitY);
 
@@ -39,14 +44,28 @@ namespace Voxel
             Pitch = MathHelper.Clamp(Pitch, -89f, 89f);
         }
 
-        public static void UpdateProjection(int width, int height)
+        public static void UpdateProjection()
         {
             float fov = MathHelper.DegreesToRadians(FOV);
-            float aspectRatio = width / (float)height;
+            float aspectRatio = _width / (float)_height;
             float near = 0.1f;
             float far = 1000f;
 
             projection = Matrix4.CreatePerspectiveFieldOfView(fov, aspectRatio, near, far);
         }
+
+        public static void UpdateSize(int width, int height)
+        {
+            _width = width;
+            _height = height;
+            UpdateProjection();
+        }
+
+        public static void UpdateFOV(float deltaTime, float alpha)
+        {
+            float currentFOV = MathHelper.Lerp(FOV, TargetFOV, FOVLerpSpeed * deltaTime);
+            Camera.FOV = currentFOV;
+            Camera.UpdateProjection();
+        }
     }
 }