Fixed launcher throwing a null reference exception because of a reference to GameMain in PlayerInput

Barotrauma/BarotraumaClient/Source/GameMain.cs

@@ -360,8 +360,11 @@ namespace Barotrauma
                 fixedTime.ElapsedGameTime = addTime;
                 fixedTime.TotalGameTime.Add(addTime);
                 base.Update(fixedTime);
-
+                
-                PlayerInput.Update(Timing.Step);
+                if (WindowActive)
+                {
+                    PlayerInput.Update(Timing.Step);
+                }
 
                 if (loadingScreenOpen)
                 {

Barotrauma/BarotraumaClient/Source/PlayerInput.cs

@@ -143,27 +143,24 @@ namespace Barotrauma
         {
             timeSinceClick += deltaTime;
 
-            if (GameMain.Instance.IsActive)
+            oldMouseState = mouseState;
+            mouseState = latestMouseState;
+            UpdateVariable();
+
+            oldKeyboardState = keyboardState;
+            keyboardState = Keyboard.GetState();
+
+            doubleClicked = false;
+            if (LeftButtonClicked())
             {
-                oldMouseState = mouseState;
+                if (timeSinceClick < DoubleClickDelay &&
-                mouseState = latestMouseState;
+                    (mouseState.Position - lastClickPosition).ToVector2().Length() < MaxDoubleClickDistance)
-                UpdateVariable();
-
-                oldKeyboardState = keyboardState;
-                keyboardState = Keyboard.GetState();
-
-                doubleClicked = false;
-                if (LeftButtonClicked())
                 {
-                    if (timeSinceClick < DoubleClickDelay &&
+                    doubleClicked = true;
-                        (mouseState.Position - lastClickPosition).ToVector2().Length() < MaxDoubleClickDistance)
-                    {
-                        doubleClicked = true;
-                    }
-                    lastClickPosition = mouseState.Position;
-                    timeSinceClick = 0.0;
                 }
-            }
+                lastClickPosition = mouseState.Position;
+                timeSinceClick = 0.0;
+            }            
         }
 
         public static void UpdateVariable()