Puddles & spreader refactor (#15191)

Content.Shared/Fluids/SharedAbsorbentSystem.cs

@@ -0,0 +1,49 @@
+using System.Linq;
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Fluids;
+
+/// <summary>
+/// Mopping logic for interacting with puddle components.
+/// </summary>
+public abstract class SharedAbsorbentSystem : EntitySystem
+{
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<AbsorbentComponent, ComponentGetState>(OnAbsorbentGetState);
+        SubscribeLocalEvent<AbsorbentComponent, ComponentHandleState>(OnAbsorbentHandleState);
+    }
+
+    private void OnAbsorbentHandleState(EntityUid uid, AbsorbentComponent component, ref ComponentHandleState args)
+    {
+        if (args.Current is not AbsorbentComponentState state)
+            return;
+
+        if (component.Progress.OrderBy(x => x.Key.ToArgb()).SequenceEqual(state.Progress))
+            return;
+
+        component.Progress.Clear();
+        foreach (var item in state.Progress)
+        {
+            component.Progress.Add(item.Key, item.Value);
+        }
+    }
+
+    private void OnAbsorbentGetState(EntityUid uid, AbsorbentComponent component, ref ComponentGetState args)
+    {
+        args.State = new AbsorbentComponentState(component.Progress);
+    }
+
+    [Serializable, NetSerializable]
+    protected sealed class AbsorbentComponentState : ComponentState
+    {
+        public Dictionary<Color, float> Progress;
+
+        public AbsorbentComponentState(Dictionary<Color, float> progress)
+        {
+            Progress = progress;
+        }
+    }
+}