Fixed railguns and depth charge tubes being directly usable by characters (= they could be launched simply by selecting them and left clicking, without the need to use a railgun controller). Closes #754

Barotrauma/BarotraumaShared/Content/Items/Weapons/depthcharge.xml

@@ -9,11 +9,12 @@
 
     <Sprite texture ="railgunetc.png" depth="0.01" sourcerect="64,180,47,76"/>
 
-    <Turret canbeselected = "true" linkable="true" barrelpos="23, 76"
+    <Turret canbeselected="false" linkable="true" characterusable="false" 
+            barrelpos="23, 76"
             rotationlimits="90,90"
             powerconsumption="0.0"/>
 
-    <ConnectionPanel selectkey="Action" canbeselected = "true" msg="Rewire [Screwdriver]">
+    <ConnectionPanel selectkey="Action" canbeselected="true" msg="Rewire [Screwdriver]">
       <requireditem name="Screwdriver,Wire" type="Equipped"/>
       <input name="trigger_in"/>
     </ConnectionPanel>

Barotrauma/BarotraumaShared/Content/Items/Weapons/railgun.xml

@@ -10,7 +10,8 @@
 
     <StaticBody width="80" radius="80"/>
 
-    <Turret barrelsprite="railgunbarrel.png" canbeselected = "true" linkable="true" origin="0.5, 0.85" barrelpos="128, 128" 
+    <Turret barrelsprite="railgunbarrel.png" canbeselected="false" characterusable="false" linkable="true" 
+            origin="0.5, 0.85" barrelpos="128, 128" 
             rotationlimits="180,360"
             powerconsumption="20000.0"
             showchargeindicator="true"

Barotrauma/BarotraumaShared/Source/Items/Components/Turret.cs

@@ -155,6 +155,12 @@ namespace Barotrauma.Items.Components
         }
 
         public override bool Use(float deltaTime, Character character = null)
+        {
+            if (!characterUsable && character != null) return false;
+            return TryLaunch(character);
+        }
+
+        private bool TryLaunch(Character character = null)
         {
             if (GameMain.Client != null) return false;
 
@@ -413,6 +419,12 @@ namespace Barotrauma.Items.Components
                     break;
                 case "trigger_in":
                     item.Use((float)Timing.Step, sender);
+                    //triggering the Use method through item.Use will fail if the item is not characterusable and the signal was sent by a character
+                    //so lets do it manually
+                    if (!characterUsable && sender != null)
+                    {
+                        TryLaunch(sender);
+                    }
                     break;
             }
         }