blinding networking (#12937)

Content.Shared/Eye/Blinding/BlindableComponent.cs

@@ -1,4 +1,5 @@
 using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
 
 namespace Content.Shared.Eye.Blinding
 {
@@ -41,4 +42,15 @@ namespace Content.Shared.Eye.Blinding
         /// </description>
         public bool GraceFrame = false;
     }
+
+    [Serializable, NetSerializable]
+    public sealed class BlindableComponentState : ComponentState
+    {
+        public readonly int Sources;
+
+        public BlindableComponentState(int sources)
+        {
+            Sources = sources;
+        }
+    }
 }

Content.Shared/Eye/Blinding/SharedBlindingSystem.cs

@@ -14,6 +14,10 @@ namespace Content.Shared.Eye.Blinding
         public override void Initialize()
         {
             base.Initialize();
+
+            SubscribeLocalEvent<BlindableComponent, ComponentGetState>(OnGetBlindableState);
+            SubscribeLocalEvent<BlindableComponent, ComponentHandleState>(OnHandleBlindableState);
+
             SubscribeLocalEvent<BlindfoldComponent, GotEquippedEvent>(OnEquipped);
             SubscribeLocalEvent<BlindfoldComponent, GotUnequippedEvent>(OnUnequipped);
 
@@ -28,6 +32,19 @@ namespace Content.Shared.Eye.Blinding
             SubscribeLocalEvent<BlindableComponent, RejuvenateEvent>(OnRejuvenate);
         }
 
+        private void OnGetBlindableState(EntityUid uid, BlindableComponent component, ref ComponentGetState args)
+        {
+            args.State = new BlindableComponentState(component.Sources);
+        }
+
+        private void OnHandleBlindableState(EntityUid uid, BlindableComponent component, ref ComponentHandleState args)
+        {
+            if (args.Current is not BlindableComponentState cast)
+                return;
+
+            component.Sources = cast.Sources;
+        }
+
         private void OnEquipped(EntityUid uid, BlindfoldComponent component, GotEquippedEvent args)
         {
             if (!TryComp<ClothingComponent>(uid, out var clothing) || clothing.Slots == SlotFlags.PREVENTEQUIP) // we live in a society