Power cells

Content.Client/GameObjects/Components/Power/PowerCellVisualizer2D.cs

@@ -0,0 +1,48 @@
+using Content.Shared.GameObjects.Components.Power;
+using Content.Shared.Utility;
+using SS14.Client.GameObjects;
+using SS14.Client.Interfaces.GameObjects.Components;
+using SS14.Shared.Interfaces.GameObjects;
+using SS14.Shared.Utility;
+using YamlDotNet.RepresentationModel;
+
+namespace Content.Client.GameObjects.Components.Power
+{
+    public class PowerCellVisualizer2D : AppearanceVisualizer
+    {
+        private string _prefix;
+
+        public override void LoadData(YamlMappingNode node)
+        {
+            base.LoadData(node);
+
+            _prefix = node.GetNode("prefix").AsString();
+        }
+
+        public override void InitializeEntity(IEntity entity)
+        {
+            base.InitializeEntity(entity);
+
+            var sprite = entity.GetComponent<ISpriteComponent>();
+
+            sprite.LayerMapSet(Layers.Charge, sprite.AddLayerState($"{_prefix}_100"));
+            sprite.LayerSetShader(Layers.Charge, "unshaded");
+        }
+
+        public override void OnChangeData(AppearanceComponent component)
+        {
+            base.OnChangeData(component);
+
+            var sprite = component.Owner.GetComponent<ISpriteComponent>();
+            if (component.TryGetData(PowerCellVisuals.ChargeLevel, out float fraction))
+            {
+                sprite.LayerSetState(Layers.Charge, $"{_prefix}_{ContentHelpers.RoundToLevels(fraction, 1, 5) * 25}");
+            }
+        }
+
+        private enum Layers
+        {
+            Charge
+        }
+    }
+}