Rename SmokeDissipateSpawnComponent to SpawnOnDespawnComponent (#20782)

Content.Server/Spawners/Components/SpawnOnDespawnComponent.cs

@@ -0,0 +1,18 @@
+using Content.Server.Spawners.EntitySystems;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Server.Spawners.Components;
+
+/// <summary>
+/// When a <c>TimedDespawnComponent"</c> despawns, another one will be spawned in its place.
+/// </summary>
+[RegisterComponent, Access(typeof(SpawnOnDespawnSystem))]
+public sealed partial class SpawnOnDespawnComponent : Component
+{
+    /// <summary>
+    /// Entity prototype to spawn.
+    /// </summary>
+    [DataField(required: true)]
+    public EntProtoId Prototype = string.Empty;
+}

Content.Server/Spawners/EntitySystems/SpawnOnDespawnSystem.cs

@@ -0,0 +1,22 @@
+using Content.Server.Spawners.Components;
+using Robust.Shared.Spawners;
+
+namespace Content.Server.Spawners.EntitySystems;
+
+public sealed class SpawnOnDespawnSystem : EntitySystem
+{
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<SpawnOnDespawnComponent, TimedDespawnEvent>(OnDespawn);
+    }
+
+    private void OnDespawn(EntityUid uid, SpawnOnDespawnComponent comp, ref TimedDespawnEvent args)
+    {
+        if (!TryComp<TransformComponent>(uid, out var xform))
+            return;
+
+        Spawn(comp.Prototype, xform.Coordinates);
+    }
+}