From 86c0a73c09bb835dc2db053718e911647d3b62a9 Mon Sep 17 00:00:00 2001
From: DrSmugleaf <DrSmugleaf@users.noreply.github.com>
Date: Sat, 18 Nov 2023 11:02:45 -0800
Subject: [PATCH] Fix error when trying to get a state with deleted grid entity
 ids in ExplosionVisualsComponent (#21743)

---
 .../Explosion/EntitySystems/ExplosionSystem.GridMap.cs    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Content.Server/Explosion/EntitySystems/ExplosionSystem.GridMap.cs b/Content.Server/Explosion/EntitySystems/ExplosionSystem.GridMap.cs
index 34028ab435..799489d7b4 100644
--- a/Content.Server/Explosion/EntitySystems/ExplosionSystem.GridMap.cs
+++ b/Content.Server/Explosion/EntitySystems/ExplosionSystem.GridMap.cs
@@ -1,5 +1,6 @@
 using System.Numerics;
 using Content.Shared.Atmos;
+using Content.Shared.Explosion;
 using Robust.Shared.Map;
 using Robust.Shared.Map.Components;
 
@@ -37,6 +38,13 @@ public sealed partial class ExplosionSystem : EntitySystem
     {
         _airtightMap.Remove(ev.EntityUid);
         _gridEdges.Remove(ev.EntityUid);
+
+        // this should be a small enough set that iterating all of them is fine
+        var query = EntityQueryEnumerator<ExplosionVisualsComponent>();
+        while (query.MoveNext(out var visuals))
+        {
+            visuals.Tiles.Remove(ev.EntityUid);
+        }
     }
 
     /// <summary>
-- 
2.51.2