Adds T-ray Scanners (#5420)

Content.Shared/SubFloor/SharedTrayScannerSystem.cs

@@ -0,0 +1,76 @@
+using System;
+using Content.Shared.Interaction;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
+using Robust.Shared.IoC;
+using Robust.Shared.Log;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.SubFloor;
+
+public abstract class SharedTrayScannerSystem : EntitySystem
+{
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<TrayScannerComponent, ComponentGetState>(OnTrayScannerGetState);
+        SubscribeLocalEvent<TrayScannerComponent, ComponentHandleState>(OnTrayScannerHandleState);
+        SubscribeLocalEvent<TrayScannerComponent, UseInHandEvent>(OnTrayScannerUsed);
+        SubscribeLocalEvent<TrayScannerComponent, ActivateInWorldEvent>(OnTrayScannerActivate);
+    }
+
+    private void OnTrayScannerUsed(EntityUid uid, TrayScannerComponent scanner, UseInHandEvent args)
+    {
+        ActivateTray(uid, scanner);
+    }
+
+    private void OnTrayScannerActivate(EntityUid uid, TrayScannerComponent scanner, ActivateInWorldEvent args)
+    {
+        ActivateTray(uid, scanner);
+    }
+
+    private void ActivateTray(EntityUid uid, TrayScannerComponent? scanner = null)
+    {
+        if (!Resolve(uid, ref scanner))
+            return;
+
+        ToggleTrayScanner(uid, !scanner.Toggled, scanner);
+        if (EntityManager.TryGetComponent<AppearanceComponent>(uid, out var appearance))
+        {
+            appearance.SetData(TrayScannerVisual.Visual, scanner.Toggled == true ? TrayScannerVisual.On : TrayScannerVisual.Off);
+        }
+    }
+
+    public virtual void ToggleTrayScanner(EntityUid uid, bool state, TrayScannerComponent? scanner = null)
+    {
+        if (!Resolve(uid, ref scanner))
+            return;
+
+        scanner.Toggled = state;
+        scanner.Dirty();
+
+        // RaiseLocalEvent(uid, new TrayScannerToggleEvent(scanner.Toggled));
+    }
+
+    private void OnTrayScannerGetState(EntityUid uid, TrayScannerComponent scanner, ref ComponentGetState args)
+    {
+        args.State = new TrayScannerState(scanner.Toggled);
+    }
+
+    private void OnTrayScannerHandleState(EntityUid uid, TrayScannerComponent scanner, ref ComponentHandleState args)
+    {
+        if (args.Current is not TrayScannerState state)
+            return;
+
+        ToggleTrayScanner(uid, state.Toggled, scanner);
+    }
+}
+
+[Serializable, NetSerializable]
+public enum TrayScannerVisual : sbyte
+{
+    Visual,
+    On,
+    Off
+}