Misc implant fixes (#17172)

Content.Shared/Implants/SharedSubdermalImplantSystem.cs

@@ -2,6 +2,9 @@
 using Content.Shared.Actions;
 using Content.Shared.Actions.ActionTypes;
 using Content.Shared.Implants.Components;
+using Content.Shared.Interaction;
+using Content.Shared.Interaction.Events;
+using Content.Shared.Mobs;
 using Content.Shared.Tag;
 using Robust.Shared.Containers;
 using Robust.Shared.Prototypes;
@@ -22,6 +25,10 @@ public abstract class SharedSubdermalImplantSystem : EntitySystem
         SubscribeLocalEvent<SubdermalImplantComponent, EntGotInsertedIntoContainerMessage>(OnInsert);
         SubscribeLocalEvent<SubdermalImplantComponent, ContainerGettingRemovedAttemptEvent>(OnRemoveAttempt);
         SubscribeLocalEvent<SubdermalImplantComponent, EntGotRemovedFromContainerMessage>(OnRemove);
+
+        SubscribeLocalEvent<ImplantedComponent, MobStateChangedEvent>(RelayToImplantEvent);
+        SubscribeLocalEvent<ImplantedComponent, AfterInteractUsingEvent>(RelayToImplantEvent);
+        SubscribeLocalEvent<ImplantedComponent, SuicideEvent>(RelayToImplantEvent);
     }
 
     private void OnInsert(EntityUid uid, SubdermalImplantComponent component, EntGotInsertedIntoContainerMessage args)
@@ -126,4 +133,30 @@ public abstract class SharedSubdermalImplantSystem : EntitySystem
 
         _container.CleanContainer(implantContainer);
     }
+
+    //Relays from the implanted to the implant
+    private void RelayToImplantEvent<T>(EntityUid uid, ImplantedComponent component, T args) where T : notnull
+    {
+        if (!_container.TryGetContainer(uid, ImplanterComponent.ImplantSlotId, out var implantContainer))
+            return;
+
+        var relayEv = new ImplantRelayEvent<T>(args);
+        foreach (var implant in implantContainer.ContainedEntities)
+        {
+            if (args is HandledEntityEventArgs { Handled : true })
+                return;
+
+            RaiseLocalEvent(implant, relayEv);
+        }
+    }
+}
+
+public sealed class ImplantRelayEvent<T> where T : notnull
+{
+    public readonly T Event;
+
+    public ImplantRelayEvent(T ev)
+    {
+        Event = ev;
+    }
 }