Added a collider to railgun (-> cannot go through walls or enemy subs anymore). Closes #444

Barotrauma/BarotraumaShared/Source/Items/Item.cs

@@ -45,6 +45,8 @@ namespace Barotrauma
         public List<IDrawableComponent> drawableComponents;
 
         public PhysicsBody body;
+
+        public readonly XElement staticBodyConfig;
         
         private Vector2 lastSentPos;
         private bool prevBodyAwake;
@@ -399,6 +401,9 @@ namespace Barotrauma
                     case "deconstruct":
                     case "brokensprite":
                         break;
+                    case "staticbody":
+                        staticBodyConfig = subElement;
+                        break;
                     case "aitarget":
                         aiTarget = new AITarget(this);
                         aiTarget.SightRange = subElement.GetAttributeFloat("sightrange", 1000.0f);