OldThink/Content.Server/Spawners/EntitySystems/SpawnOnDespawnSystem.cs

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(uid, out TransformComponent? xform))
            return;

        Spawn(comp.Prototype, xform.Coordinates);
    }
}