Add mouse centering in Editor Viewport if initial location is too close to the edge

Source/Editor/Viewport/EditorViewport.cs

@@ -865,9 +865,14 @@ namespace FlaxEditor.Viewport
             win.StartTrackingMouse(false);
             win.Cursor = CursorType.Hidden;
 
-            // Center mouse position
-            //_viewMousePos = Center;
-            //win.MousePosition = PointToWindow(_viewMousePos);
+            // Center mouse position if it's too close to the edge
+            var size = Size;
+            var center = size * 0.5f;
+            if (Mathf.Abs(_viewMousePos.X - center.X) > center.X * 0.8f || Mathf.Abs(_viewMousePos.Y - center.Y) > center.Y * 0.8f)
+            {
+                _viewMousePos = center;
+                win.MousePosition = PointToWindow(_viewMousePos);
+            }
         }
 
         /// <summary>

Source/Engine/Core/Math/Vector2.cs

@@ -197,6 +197,16 @@ namespace FlaxEngine
         /// </summary>
         public float ValuesSum => X + Y;
 
+        /// <summary>
+        /// Gets a vector with values being absolute values of that vector.
+        /// </summary>
+        public Vector2 Absolute => new Vector2(Mathf.Abs(X), Mathf.Abs(Y));
+
+        /// <summary>
+        /// Gets a vector with values being opposite to values of that vector.
+        /// </summary>
+        public Vector2 Negative => new Vector2(-X, -Y);
+
         /// <summary>
         /// Gets or sets the component at the specified index.
         /// </summary>

Source/Engine/Core/Math/Vector4.cs

@@ -227,6 +227,16 @@ namespace FlaxEngine
         /// </summary>
         public float ValuesSum => X + Y + Z + W;
 
+        /// <summary>
+        /// Gets a vector with values being absolute values of that vector.
+        /// </summary>
+        public Vector4 Absolute => new Vector4(Mathf.Abs(X), Mathf.Abs(Y), Mathf.Abs(Z), Mathf.Abs(W));
+
+        /// <summary>
+        /// Gets a vector with values being opposite to values of that vector.
+        /// </summary>
+        public Vector4 Negative => new Vector4(-X, -Y, -Z, -W);
+
         /// <summary>
         /// Gets or sets the component at the specified index.
         /// </summary>