Landing velocity threshold (#4606)

* landing threshold

* on bodystatus change

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Shared/CCVar/CCVars.cs

@@ -11,6 +11,12 @@ namespace Content.Shared.CCVar
          * Ambience
          */
 
+        /// <summary>
+        ///     Whether the basic 'hum' ambience will be enabled.
+        /// </summary>
+        public static readonly CVarDef<bool> AmbienceBasicEnabled =
+            CVarDef.Create("ambience.basic_enabled", true, CVar.ARCHIVE | CVar.CLIENTONLY);
+
         /// <summary>
         /// How long we'll wait until re-sampling nearby objects for ambience.
         /// </summary>
@@ -225,13 +231,6 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<bool> MobPushing =
             CVarDef.Create("physics.mob_pushing", true, CVar.REPLICATED);
 
-        /*
-         * Ambience
-         */
-
-        public static readonly CVarDef<bool> AmbienceBasicEnabled =
-            CVarDef.Create("ambience.basicenabled", true, CVar.ARCHIVE | CVar.CLIENTONLY);
-
         /*
          * Lobby music
          */