Adds T-ray Scanners (#5420)

Content.Client/SubFloor/TrayScannerSubFloorVisualizer.cs

@@ -0,0 +1,45 @@
+using Robust.Client.GameObjects;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Maths;
+
+namespace Content.Client.SubFloor;
+
+public class TrayScannerSubFloorVisualizer : AppearanceVisualizer
+{
+    [Dependency] IEntityManager _entityManager = default!;
+
+    public override void InitializeEntity(EntityUid uid)
+    {
+        base.InitializeEntity(uid);
+
+        IoCManager.InjectDependencies(this);
+    }
+
+    public override void OnChangeData(AppearanceComponent component)
+    {
+        base.OnChangeData(component);
+
+        if (!_entityManager.TryGetComponent(component.Owner, out SpriteComponent? sprite))
+            return;
+
+        if (!component.TryGetData(TrayScannerTransparency.Key, out bool transparent))
+            return;
+
+        foreach (var layer in sprite.AllLayers)
+        {
+            var transparency = transparent == true ? 0.8f : 1f;
+            layer.Color = layer.Color.WithAlpha(transparency);
+        }
+
+        if (sprite.LayerMapTryGet(SubFloorShowLayerVisualizer.Layers.FirstLayer, out var firstLayer))
+        {
+            sprite.LayerSetColor(firstLayer, Color.White);
+        }
+    }
+}
+
+public enum TrayScannerTransparency
+{
+    Key,
+}