Filled bucket will spill player when it is worn on their head (#6114)

Content.Server/Fluids/Components/SpillableComponent.cs

@@ -12,4 +12,11 @@ public class SpillableComponent : Component
 
     [DataField("solution")]
     public string SolutionName = "puddle";
+
+    /// <summary>
+    ///     Should this item be spilled when worn as clothing?
+    ///     Doesn't count for pockets or hands.
+    /// </summary>
+    [DataField("spillWorn")]
+    public bool SpillWorn = true;
 }

Content.Server/Fluids/EntitySystems/SpillableSystem.cs

@@ -2,12 +2,14 @@ using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using Content.Server.Administration.Logs;
 using Content.Server.Chemistry.EntitySystems;
+using Content.Server.Clothing.Components;
 using Content.Server.Coordinates.Helpers;
 using Content.Server.Fluids.Components;
 using Content.Shared.Chemistry.Components;
 using Content.Shared.Chemistry.Reagent;
 using Content.Shared.Database;
 using Content.Shared.FixedPoint;
+using Content.Shared.Inventory.Events;
 using Content.Shared.Throwing;
 using Content.Shared.Verbs;
 using JetBrains.Annotations;
@@ -35,6 +37,31 @@ public class SpillableSystem : EntitySystem
         base.Initialize();
         SubscribeLocalEvent<SpillableComponent, LandEvent>(SpillOnLand);
         SubscribeLocalEvent<SpillableComponent, GetOtherVerbsEvent>(AddSpillVerb);
+        SubscribeLocalEvent<SpillableComponent, GotEquippedEvent>(OnGotEquipped);
+    }
+
+    private void OnGotEquipped(EntityUid uid, SpillableComponent component, GotEquippedEvent args)
+    {
+        if (!component.SpillWorn)
+            return;
+
+        if (!TryComp(uid, out ClothingComponent? clothing))
+            return;
+
+        // check if entity was actually used as clothing
+        // not just taken in pockets or something
+        var isCorrectSlot = clothing.SlotFlags.HasFlag(args.SlotFlags);
+        if (!isCorrectSlot) return;
+
+        if (!_solutionContainerSystem.TryGetSolution(uid, component.SolutionName, out var solution))
+            return;
+        if (solution.TotalVolume == 0)
+            return;
+
+        // spill all solution on the player
+        var drainedSolution = _solutionContainerSystem.Drain(uid, solution, solution.DrainAvailable);
+        SpillAt(args.Equipee, drainedSolution, "PuddleSmear");
+
     }
 
     /// <summary>