MessyDrinker for dogs (#38852)

Content.Server/Nutrition/EntitySystems/MessyDrinkerSystem.cs

@@ -0,0 +1,41 @@
+using Content.Server.Fluids.EntitySystems;
+using Content.Server.Nutrition.Components;
+using Content.Server.Nutrition.Events;
+using Content.Shared.Popups;
+using Robust.Shared.Random;
+
+namespace Content.Server.Nutrition.EntitySystems;
+
+public sealed class MessyDrinkerSystem : EntitySystem
+{
+    [Dependency] private readonly PuddleSystem _puddle = default!;
+    [Dependency] private readonly IRobustRandom _random = default!;
+    [Dependency] private readonly SharedPopupSystem _popup = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<MessyDrinkerComponent, BeforeIngestDrinkEvent>(OnBeforeIngestDrink);
+    }
+
+    private void OnBeforeIngestDrink(Entity<MessyDrinkerComponent> ent, ref BeforeIngestDrinkEvent ev)
+    {
+        if (ev.Solution.Volume <= ent.Comp.SpillAmount)
+            return;
+
+        // Cannot spill if you're being forced to drink.
+        if (ev.Forced)
+            return;
+
+        if (!_random.Prob(ent.Comp.SpillChance))
+            return;
+
+        if (ent.Comp.SpillMessagePopup != null)
+            _popup.PopupEntity(Loc.GetString(ent.Comp.SpillMessagePopup), ent, ent, PopupType.MediumCaution);
+
+        var split = ev.Solution.SplitSolution(ent.Comp.SpillAmount);
+
+        _puddle.TrySpillAt(ent, split, out _);
+    }
+}