Partial kudzu fix (#10854)

Content.Shared/Movement/Components/SlowContactsComponent.cs

@@ -1,4 +1,5 @@
 using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
 
 namespace Content.Shared.Movement.Components;
 
@@ -6,8 +7,22 @@ namespace Content.Shared.Movement.Components;
 public sealed class SlowContactsComponent : Component
 {
     [ViewVariables, DataField("walkSpeedModifier")]
-    public float WalkSpeedModifier { get; private set; } = 1.0f;
+    public float WalkSpeedModifier { get; set; } = 1.0f;
 
     [ViewVariables, DataField("sprintSpeedModifier")]
-    public float SprintSpeedModifier { get; private set; } = 1.0f;
+    public float SprintSpeedModifier { get; set; } = 1.0f;
+}
+
+[Serializable, NetSerializable]
+public sealed class SlowContactsComponentState : ComponentState
+{
+    public readonly float WalkSpeedModifier;
+
+    public readonly float SprintSpeedModifier;
+
+    public SlowContactsComponentState(float walkSpeedModifier, float sprintSpeedModifier)
+    {
+        WalkSpeedModifier = walkSpeedModifier;
+        SprintSpeedModifier = sprintSpeedModifier;
+    }
 }

Content.Shared/Movement/Components/SlowedByContactComponent.cs

@@ -0,0 +1,12 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Movement.Components;
+
+/// <summary>
+/// Exists just to listen to a single event. What a life.
+/// </summary>
+[NetworkedComponent, RegisterComponent] // must be networked to properly predict adding & removal
+public sealed class SlowedByContactComponent : Component
+{
+}

Content.Shared/Movement/Components/SlowsOnContactComponent.cs

@@ -1,11 +0,0 @@
-using Robust.Shared.GameStates;
-
-namespace Content.Shared.Movement.Components;
-
-/// <summary>
-/// Exists just to listen to a single event. What a life.
-/// </summary>
-[NetworkedComponent, RegisterComponent]
-public sealed class SlowsOnContactComponent : Component
-{
-}