Data-oriented Construction System (#2152)

- Powerful
- Data-oriented
- Approved by PJB
- Powered by node graphs and AI pathfinding
- Coded by the same nerd who brought you atmos

Co-authored-by: Exp <theexp111@gmail.com>

Content.Server/GameObjects/Components/Damage/BreakableConstructionComponent.cs

@@ -0,0 +1,45 @@
+#nullable enable
+using System;
+using Content.Server.GameObjects.Components.Construction;
+using Content.Shared.GameObjects.Components.Damage;
+using Content.Shared.GameObjects.EntitySystems;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.GameObjects.Components.Damage
+{
+    [RegisterComponent]
+    [ComponentReference(typeof(IDamageableComponent))]
+    public class BreakableConstructionComponent : RuinableComponent
+    {
+        private ActSystem _actSystem = default!;
+
+        public override string Name => "BreakableConstruction";
+
+        public override void ExposeData(ObjectSerializer serializer)
+        {
+            base.ExposeData(serializer);
+
+            serializer.DataField(this, x => x.Node, "node", string.Empty);
+        }
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            _actSystem = EntitySystem.Get<ActSystem>();
+        }
+
+        public string Node { get; private set; } = string.Empty;
+
+        protected override async void DestructionBehavior()
+        {
+            if (Owner.Deleted || !Owner.TryGetComponent(out ConstructionComponent? construction) || string.IsNullOrEmpty(Node)) return;
+
+            _actSystem.HandleBreakage(Owner);
+
+            await construction.ChangeNode(Node);
+        }
+    }
+}