Implement StorageFillComponent (#726)

Content.Server/GameObjects/Components/Items/Storage/Fill/StorageFillComponent.cs

@@ -0,0 +1,48 @@
+using System.Collections.Generic;
+using Robust.Server.Interfaces.GameObjects;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Serialization;
+
+namespace Content.Server.GameObjects.Components.Items.Storage.Fill
+{
+    [RegisterComponent]
+    internal sealed class StorageFillComponent : Component, IMapInit
+    {
+        public override string Name => "StorageFill";
+
+        private List<string> _contents = new List<string>();
+
+#pragma warning disable 649
+        [Dependency] private readonly IEntityManager _entityManager;
+#pragma warning restore 649
+
+        public override void ExposeData(ObjectSerializer serializer)
+        {
+            base.ExposeData(serializer);
+
+            serializer.DataField(ref _contents, "contents", new List<string>());
+        }
+
+        void IMapInit.MapInit()
+        {
+            if (_contents.Count == 0)
+            {
+                return;
+            }
+
+            var storage = Owner.GetComponent<IStorageComponent>();
+
+            void Spawn(string prototype)
+            {
+                storage.Insert(_entityManager.SpawnEntity(prototype, Owner.Transform.GridPosition));
+            }
+
+            foreach (var prototype in _contents)
+            {
+                Spawn(prototype);
+            }
+        }
+    }
+}