Makes mobs visually float when weightless (#13391)

Content.Shared/Gravity/FloatingVisualsComponent.cs

@@ -0,0 +1,43 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Gravity;
+
+[RegisterComponent, NetworkedComponent]
+[Access(typeof(SharedFloatingVisualizerSystem))]
+public sealed class FloatingVisualsComponent : Component
+{
+    /// <summary>
+    /// How long it takes to go from the bottom of the animation to the top.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite)]
+    [DataField("animationTime")]
+    public float AnimationTime = 2f;
+
+    /// <summary>
+    /// How far it goes in any direction.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite)]
+    [DataField("offset")]
+    public Vector2 Offset = new(0, 0.2f);
+
+    [ViewVariables(VVAccess.ReadWrite)]
+    public bool CanFloat = false;
+    public readonly string AnimationKey = "gravity";
+}
+
+
+[Serializable, NetSerializable]
+public sealed class SharedFloatingVisualsComponentState : ComponentState
+{
+    public float AnimationTime;
+    public Vector2 Offset;
+    public bool HasGravity;
+
+    public SharedFloatingVisualsComponentState(float animationTime, Vector2 offset, bool hasGravity)
+    {
+        AnimationTime = animationTime;
+        Offset = offset;
+        HasGravity = hasGravity;
+    }
+}