- changed how PowerContainers determine how much power to provide to the grid, batteries can now match the load of the grid

- light-emitting alien structures that hold the artifacts instead of just having the artifacts lay on the floor (can also be used for turning artifacts into power sources if installed in a sub)

Subsurface/Source/Events/ArtifactEvent.cs

@@ -1,4 +1,5 @@
 using Microsoft.Xna.Framework;
+using System;
 using System.Xml.Linq;
 
 namespace Barotrauma
@@ -37,6 +38,21 @@ namespace Barotrauma
             item = new Item(itemPrefab, position, null);
             item.MoveWithLevel = true;
             item.body.FarseerBody.IsKinematic = true;
+
+            //try to find a nearby artifact holder (or any alien itemcontainer) and place the artifact inside it
+            foreach (Item it in Item.ItemList)
+            {
+                if (it.Submarine != null || !it.HasTag("alien")) continue;
+
+                if (Math.Abs(item.WorldPosition.X - it.WorldPosition.X) > 2000.0f) continue;
+                if (Math.Abs(item.WorldPosition.Y - it.WorldPosition.Y) > 2000.0f) continue;
+
+                var itemContainer = it.GetComponent<Items.Components.ItemContainer>();
+                if (itemContainer == null) continue;
+
+                itemContainer.Combine(item);
+                break;
+            }
         }
 
         public override void Update(float deltaTime)