water ambience sounds change according to speed, oxygengenerator fills oxygen tanks even if their condition is 0, submarine refactoring & bugfixes, wire node editing bugfixes

Subsurface/Source/Map/MapEntity.cs

@@ -41,9 +41,10 @@ namespace Subsurface
         public static bool DisableSelect
         {
             get { return disableSelect; }
-            set { 
+            set 
+            { 
                 disableSelect = value; 
-                if (disableSelect==true)
+                if (disableSelect)
                 {
                     startMovingPos = Vector2.Zero;
                     selectionSize = Vector2.Zero;
@@ -52,6 +53,12 @@ namespace Subsurface
             }
         }
 
+
+        public static bool SelectedAny
+        {
+            get { return selectedList.Count > 0; }
+        }
+
         public bool MoveWithLevel
         {
             get;