Show ghosts popups etc through walls (#8077)

* Show ghosts popups etc through walls

* Stage moment

* crashes

Content.Client/Chat/ChatSystem.cs

@@ -12,6 +12,7 @@ public sealed class ChatSystem : SharedChatSystem
 {
     [Dependency] private readonly IChatManager _manager = default!;
     [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly ExamineSystem _examineSystem = default!;
 
     public override void FrameUpdate(float frameTime)
     {
@@ -23,6 +24,8 @@ public override void FrameUpdate(float frameTime)
         var bubbles = _manager.GetSpeechBubbles();
         var playerPos = player != null ? Transform(player.Value).MapPosition : MapCoordinates.Nullspace;
 
+        var occluded = player != null && _examineSystem.IsOccluded(player.Value);
+
         foreach (var (ent, bubs) in bubbles)
         {
             if (ent == player)
@@ -33,7 +36,7 @@ public override void FrameUpdate(float frameTime)
 
             var otherPos = Transform(ent).MapPosition;
 
-            if (!ExamineSystemShared.InRangeUnOccluded(
+            if (occluded && !ExamineSystemShared.InRangeUnOccluded(
                     playerPos,
                     otherPos, 0f,
                     (ent, player), predicate))

Content.Client/DoAfter/DoAfterSystem.cs

@@ -5,6 +5,7 @@
 using JetBrains.Annotations;
 using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
+using Robust.Client.Player;
 using Robust.Shared.GameStates;
 using Robust.Shared.Timing;
 using Robust.Shared.Utility;
@@ -27,19 +28,18 @@ public sealed class DoAfterSystem : EntitySystem
     */
         [Dependency] private readonly IEyeManager _eyeManager = default!;
         [Dependency] private readonly IGameTiming _gameTiming = default!;
+        [Dependency] private readonly IPlayerManager _player = default!;
+        [Dependency] private readonly ExamineSystemShared _examineSystem = default!;
 
         /// <summary>
         ///     We'll use an excess time so stuff like finishing effects can show.
         /// </summary>
         public const float ExcessTime = 0.5f;
 
-        private EntityUid? _attachedEntity;
-
         public override void Initialize()
         {
             base.Initialize();
             UpdatesOutsidePrediction = true;
-            SubscribeLocalEvent<PlayerAttachSysMessage>(HandlePlayerAttached);
             SubscribeNetworkEvent<CancelledDoAfterMessage>(OnCancelledDoAfter);
             SubscribeLocalEvent<DoAfterComponent, ComponentStartup>(OnDoAfterStartup);
             SubscribeLocalEvent<DoAfterComponent, ComponentShutdown>(OnDoAfterShutdown);
@@ -111,11 +111,6 @@ private void OnCancelledDoAfter(CancelledDoAfterMessage ev)
             Cancel(doAfter, ev.ID);
         }
 
-        private void HandlePlayerAttached(PlayerAttachSysMessage message)
-        {
-            _attachedEntity = message.AttachedEntity;
-        }
-
         /// <summary>
         ///     For handling PVS so we dispose of controls if they go out of range
         /// </summary>
@@ -196,17 +191,19 @@ public override void Update(float frameTime)
             base.Update(frameTime);
 
             var currentTime = _gameTiming.CurTime;
+            var attached = _player.LocalPlayer?.ControlledEntity;
 
             // Can't see any I guess?
-            if (_attachedEntity is not {Valid: true} entity || Deleted(entity))
+            if (attached == null || Deleted(attached))
                 return;
 
             // ReSharper disable once ConvertToLocalFunction
             var predicate = static (EntityUid uid, (EntityUid compOwner, EntityUid? attachedEntity) data)
                 => uid == data.compOwner || uid == data.attachedEntity;
 
+            var occluded = _examineSystem.IsOccluded(attached.Value);
             var viewbox = _eyeManager.GetWorldViewport().Enlarged(2.0f);
-            var entXform = Transform(entity);
+            var entXform = Transform(attached.Value);
             var playerPos = entXform.MapPosition;
 
             foreach (var (comp, xform) in EntityManager.EntityQuery<DoAfterComponent, TransformComponent>(true))
@@ -224,11 +221,12 @@ public override void Update(float frameTime)
 
                 var range = (compPos.Position - playerPos.Position).Length + 0.01f;
 
-                if (comp.Owner != _attachedEntity &&
+                if (occluded &&
+                    comp.Owner != attached &&
                     !ExamineSystemShared.InRangeUnOccluded(
                         playerPos,
                         compPos, range,
-                        (comp.Owner, _attachedEntity), predicate))
+                        (comp.Owner, attached), predicate))
                 {
                     Disable(comp);
                     continue;

Content.Client/Popups/PopupSystem.cs

@@ -20,6 +20,7 @@ public sealed class PopupSystem : SharedPopupSystem
         [Dependency] private readonly IUserInterfaceManager _userInterfaceManager = default!;
         [Dependency] private readonly IEyeManager _eyeManager = default!;
         [Dependency] private readonly IPlayerManager _playerManager = default!;
+        [Dependency] private readonly ExamineSystemShared _examineSystem = default!;
 
         private readonly List<PopupLabel> _aliveLabels = new();
 
@@ -141,6 +142,7 @@ public override void FrameUpdate(float frameTime)
             // ReSharper disable once ConvertToLocalFunction
             var predicate = static (EntityUid uid, (EntityUid? compOwner, EntityUid? attachedEntity) data)
                 => uid == data.compOwner || uid == data.attachedEntity;
+            var occluded = player != null && _examineSystem.IsOccluded(player.Value);
 
             for (var i = _aliveLabels.Count - 1; i >= 0; i--)
             {
@@ -161,7 +163,7 @@ public override void FrameUpdate(float frameTime)
 
                 var otherPos = label.Entity != null ? Transform(label.Entity.Value).MapPosition : label.InitialPos;
 
-                if (!ExamineSystemShared.InRangeUnOccluded(
+                if (occluded && !ExamineSystemShared.InRangeUnOccluded(
                         playerPos,
                         otherPos, 0f,
                         (label.Entity, player), predicate))

Content.Shared/Examine/ExamineSystemShared.cs

@@ -102,6 +102,14 @@ public float GetExaminerRange(EntityUid examiner, MobStateComponent? mobState =
             return ExamineRange;
         }
 
+        /// <summary>
+        /// True if occluders are drawn for this entity, otherwise false.
+        /// </summary>
+        public bool IsOccluded(EntityUid uid)
+        {
+            return TryComp<SharedEyeComponent>(uid, out var eye) && eye.DrawFov;
+        }
+
         public static bool InRangeUnOccluded(MapCoordinates origin, MapCoordinates other, float range, Ignored? predicate, bool ignoreInsideBlocker = true, IEntityManager? entMan = null)
         {
             // No, rider. This is better.