decouple material insertion visualization from lathes (#13242)

Content.Client/Materials/MaterialStorageSystem.cs

@@ -3,13 +3,43 @@ using Robust.Client.GameObjects;
 
 namespace Content.Client.Materials;
 
-/// <summary>
-/// This handles...
-/// </summary>
 public sealed class MaterialStorageSystem : SharedMaterialStorageSystem
 {
+    [Dependency] private readonly AppearanceSystem _appearance = default!;
     [Dependency] private readonly TransformSystem _transform = default!;
 
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<MaterialStorageComponent, AppearanceChangeEvent>(OnAppearanceChange);
+    }
+
+    private void OnAppearanceChange(EntityUid uid, MaterialStorageComponent component, ref AppearanceChangeEvent args)
+    {
+        if (args.Sprite == null)
+            return;
+
+        if (!args.Sprite.LayerMapTryGet(MaterialStorageVisualLayers.Inserting, out var layer))
+            return;
+
+        if (!_appearance.TryGetData(uid, MaterialStorageVisuals.Inserting, out bool inserting, args.Component))
+            return;
+
+        if (inserting && TryComp<InsertingMaterialStorageComponent>(uid, out var insertingComp))
+        {
+            args.Sprite.LayerSetAnimationTime(layer, 0f);
+
+            args.Sprite.LayerSetVisible(layer, true);
+            if (insertingComp.MaterialColor != null)
+                args.Sprite.LayerSetColor(layer, insertingComp.MaterialColor.Value);
+        }
+        else
+        {
+            args.Sprite.LayerSetVisible(layer, false);
+        }
+    }
+
     public override bool TryInsertMaterialEntity(EntityUid user, EntityUid toInsert, EntityUid receiver, MaterialStorageComponent? component = null)
     {
         if (!base.TryInsertMaterialEntity(user, toInsert, receiver, component))
@@ -18,3 +48,8 @@ public sealed class MaterialStorageSystem : SharedMaterialStorageSystem
         return true;
     }
 }
+
+public enum MaterialStorageVisualLayers : byte
+{
+    Inserting
+}