Bucket solution fills + ECS SolutionContainerVisualizer (#10289)

Content.Client/Chemistry/Visualizers/SolutionContainerVisualsSystem.cs

@@ -0,0 +1,47 @@
+using Content.Shared.Chemistry;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.Chemistry.Visualizers;
+
+public sealed class SolutionContainerVisualsSystem : VisualizerSystem<SolutionContainerVisualsComponent>
+{
+    protected override void OnAppearanceChange(EntityUid uid, SolutionContainerVisualsComponent component, ref AppearanceChangeEvent args)
+    {
+        if (!args.Component.TryGetData(SolutionContainerVisuals.VisualState, out SolutionContainerVisualState state))
+            return;
+
+        if (args.Sprite == null)
+            return;
+
+        if (!args.Sprite.LayerMapTryGet(component.Layer, out var fillLayer))
+            return;
+
+        var fillPercent = state.FilledVolumePercent;
+        var closestFillSprite = (int) Math.Round(fillPercent * component.MaxFillLevels);
+
+        if (closestFillSprite > 0)
+        {
+            if (component.FillBaseName == null)
+                return;
+
+            args.Sprite.LayerSetVisible(fillLayer, true);
+
+            var stateName = component.FillBaseName + closestFillSprite;
+            args.Sprite.LayerSetState(fillLayer, stateName);
+
+            if (component.ChangeColor)
+                args.Sprite.LayerSetColor(fillLayer, state.Color);
+        }
+        else
+        {
+            if (component.EmptySpriteName == null)
+                args.Sprite.LayerSetVisible(fillLayer, false);
+            else
+            {
+                args.Sprite.LayerSetState(fillLayer, component.EmptySpriteName);
+                if (component.ChangeColor)
+                    args.Sprite.LayerSetColor(fillLayer, component.EmptySpriteColor);
+            }
+        }
+    }
+}