Fix tethergun (#13163)

Content.Client/Weapons/Ranged/Systems/TetherGunSystem.cs

@@ -17,7 +17,6 @@ public sealed class TetherGunSystem : SharedTetherGunSystem
     [Dependency] private readonly IEyeManager _eyeManager = default!;
     [Dependency] private readonly IGameTiming _gameTiming = default!;
     [Dependency] private readonly IInputManager _inputManager = default!;
-    [Dependency] private readonly EntityLookupSystem _lookup = default!;
     [Dependency] private readonly InputSystem _inputSystem = default!;
 
     public bool Enabled { get; set; }
@@ -85,15 +84,10 @@ public sealed class TetherGunSystem : SharedTetherGunSystem
 
             if (gameState is GameplayState game)
             {
-                EntityUid? uid;
+                var uid = game.GetEntityUnderPosition(mousePos);
 
-                foreach (var ent in _lookup.GetEntitiesIntersecting(mousePos, LookupFlags.Approximate | LookupFlags.Static))
+                if (uid != null)
-                {
+                    StartDragging(uid.Value, mousePos);
-                    uid = game.GetEntityUnderPosition(mousePos);
-
-                    if (uid != null)
-                        StartDragging(uid.Value, mousePos);
-                }
             }
 
             if (_dragging == null)

Content.IntegrationTests/Tests/PrototypeSaveTest.cs

@@ -54,7 +54,6 @@ public sealed class PrototypeSaveTest
         "SignalSwitch",
         "SignalButton",
         "ApcNetSwitch",
-        "TetherEntity",
         "SignalButtonExt1",
         "SignalButtonExt2",
         "SignalButtonExt3",

Content.Server/Weapons/Ranged/Systems/TetherGunSystem.cs

@@ -21,6 +21,7 @@ public sealed class TetherGunSystem : SharedTetherGunSystem
     [Dependency] private readonly IPlayerManager _playerManager = default!;
     [Dependency] private readonly SharedContainerSystem _container = default!;
     [Dependency] private readonly SharedJointSystem _joints = default!;
+    [Dependency] private readonly SharedPhysicsSystem _physics = default!;
 
     private readonly Dictionary<ICommonSession, (EntityUid Entity, EntityUid Tether, Joint Joint)> _tethered = new();
     private readonly HashSet<ICommonSession> _draggers = new();
@@ -113,6 +114,8 @@ public sealed class TetherGunSystem : SharedTetherGunSystem
             body.BodyStatus = BodyStatus.InAir;
         }
 
+        _physics.WakeBody(bodyA);
+        _physics.WakeBody(bodyB);
         var joint = _joints.CreateMouseJoint(bodyA.Owner, bodyB.Owner, id: JointId);
 
         SharedJointSystem.LinearStiffness(5f, 0.7f, bodyA.Mass, bodyB.Mass, out var stiffness, out var damping);
@@ -183,7 +186,7 @@ public sealed class TetherGunSystem : SharedTetherGunSystem
             // Force it awake, always
             if (bodyQuery.TryGetComponent(entity.Entity, out var body))
             {
-                body.WakeBody();
+                _physics.WakeBody(body);
             }
         }
 

Resources/Prototypes/Entities/Virtual/tether.yml

@@ -3,4 +3,10 @@
   noSpawn: true
   components:
   - type: Physics
+    bodyType: Dynamic
   - type: Fixtures
+    fixtures:
+      - shape:
+          !type:PhysShapeCircle
+          radius: 0.35
+        id: tether