Add support for grid chunk removals (#1941)

* Add support for grid chunk removals Also allows grids to be removed when they have no more chunks remaining. * No more crashing pog * Slightly better * Minor optimisations and fix bounds * Avoid creating new chunks for anchoring * chucky * comment * Tests * Remove some logs * Remove another log * Review
2026-09-06 17:58:05 +02:00 · 2021-08-23 16:00:07 +10:00
parent 80a9a82278
commit d72185933a
20 changed files with 361 additions and 37 deletions
@@ -0,0 +1,65 @@
+using JetBrains.Annotations;
+using Robust.Shared.IoC;
+using Robust.Shared.Map;
+
+namespace Robust.Shared.GameObjects
+{
+    [UsedImplicitly]
+    internal abstract class SharedMapSystem : EntitySystem
+    {
+        [Dependency] protected readonly IMapManagerInternal MapManager = default!;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            SubscribeLocalEvent<MapGridComponent, ComponentRemove>(RemoveHandler);
+            SubscribeLocalEvent<MapGridComponent, ComponentInit>(HandleGridInitialize);
+            SubscribeLocalEvent<MapGridComponent, ComponentStartup>(HandleGridStartup);
+        }
+
+        private void HandleGridStartup(EntityUid uid, MapGridComponent component, ComponentStartup args)
+        {
+            var msg = new GridStartupEvent(uid, component.GridIndex);
+            EntityManager.EventBus.RaiseLocalEvent(uid, msg);
+        }
+
+        private void RemoveHandler(EntityUid uid, MapGridComponent component, ComponentRemove args)
+        {
+            MapManager.OnComponentRemoved(component);
+        }
+
+        private void HandleGridInitialize(EntityUid uid, MapGridComponent component, ComponentInit args)
+        {
+            var msg = new GridInitializeEvent(uid, component.GridIndex);
+            EntityManager.EventBus.RaiseLocalEvent(uid, msg);
+        }
+    }
+
+    public sealed class GridStartupEvent : EntityEventArgs
+    {
+        public EntityUid EntityUid { get; }
+        public GridId GridId { get; }
+
+        public GridStartupEvent(EntityUid uid, GridId gridId)
+        {
+            EntityUid = uid;
+            GridId = gridId;
+        }
+    }
+
+    /// <summary>
+    /// Raised whenever a grid is being initialized.
+    /// </summary>
+    public sealed class GridInitializeEvent : EntityEventArgs
+    {
+        public EntityUid EntityUid { get; }
+        public GridId GridId { get; }
+
+        public GridInitializeEvent(EntityUid uid, GridId gridId)
+        {
+            EntityUid = uid;
+            GridId = gridId;
+        }
+    }
+}