New Experimental Science T3: Desynchronizer (#35752)

* desynchronizer real

* yaml stuff from slarti branch

* C# stuff

* oops

* review

* improve

---------

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

Content.Server/Polymorph/Systems/PolymorphSystem.cs

@@ -5,6 +5,7 @@ using Content.Server.Mind.Commands;
 using Content.Server.Polymorph.Components;
 using Content.Shared.Actions;
 using Content.Shared.Buckle;
+using Content.Shared.Coordinates;
 using Content.Shared.Damage;
 using Content.Shared.Destructible;
 using Content.Shared.Hands.EntitySystems;
@@ -277,6 +278,10 @@ public sealed partial class PolymorphSystem : EntitySystem
         var ev = new PolymorphedEvent(uid, child, false);
         RaiseLocalEvent(uid, ref ev);
 
+        // visual effect spawn
+        if (configuration.EffectProto != null)
+            SpawnAttachedTo(configuration.EffectProto, child.ToCoordinates());
+
         return child;
     }
 
@@ -353,6 +358,10 @@ public sealed partial class PolymorphSystem : EntitySystem
         var ev = new PolymorphedEvent(uid, parent, true);
         RaiseLocalEvent(uid, ref ev);
 
+        // visual effect spawn
+        if (component.Configuration.EffectProto != null)
+            SpawnAttachedTo(component.Configuration.EffectProto, parent.ToCoordinates());
+
         if (component.Configuration.ExitPolymorphPopup != null)
             _popup.PopupEntity(Loc.GetString(component.Configuration.ExitPolymorphPopup,
                 ("parent", Identity.Entity(uid, EntityManager)),