change IsAnyKeyDown to IsAnyButtonDown and add Float2.Normalized

Source/Engine/Core/Math/Float2.cs

@@ -267,6 +267,19 @@ namespace FlaxEngine
         /// <remarks>This method may be preferred to <see cref="Float2.Length" /> when only a relative length is needed and speed is of the essence.</remarks>
         public float LengthSquared => X * X + Y * Y;
 
+        /// <summary>
+        /// Gets the normalized vector. Returned vector has length equal 1.
+        /// </summary>
+        public Float2 Normalized
+        {
+            get
+            {
+                Float2 result = this;
+                result.Normalize();
+                return result;
+            }
+        }
+
         /// <summary>
         /// Converts the vector into a unit vector.
         /// </summary>

Source/Engine/Input/Gamepad.cpp

@@ -31,7 +31,7 @@ void Gamepad::ResetState()
     _mappedPrevState.Clear();
 }
 
-bool Gamepad::IsAnyKeyDown() const
+bool Gamepad::IsAnyButtonDown() const
 {
     // TODO: optimize with SIMD
     bool result = false;

Source/Engine/Input/Gamepad.h

@@ -167,7 +167,7 @@ public:
     /// <summary>
     /// Checks if any gamepad button is currently pressed.
     /// </summary>
-    API_PROPERTY() bool IsAnyKeyDown() const;
+    API_PROPERTY() bool IsAnyButtonDown() const;
 
     /// <summary>
     /// Gets the gamepad button up state (true if was released during the current frame).

Source/Engine/Input/Input.cpp

@@ -183,7 +183,7 @@ void Mouse::OnMouseDown(const Float2& position, const MouseButton button, Window
     e.MouseData.Position = position;
 }
 
-bool Mouse::IsAnyKeyDown() const
+bool Mouse::IsAnyButtonDown() const
 {
     // TODO: optimize with SIMD
     bool result = false;

Source/Engine/Input/Mouse.h

@@ -65,9 +65,9 @@ public:
     }
 
     /// <summary>
-    /// Checks if any mouse key is currently pressed.
+    /// Checks if any mouse button is currently pressed.
     /// </summary>
-    API_PROPERTY() bool IsAnyKeyDown() const;
+    API_PROPERTY() bool IsAnyButtonDown() const;
 
     /// <summary>
     /// Gets the delta position of the mouse in the screen-space coordinates.