Fancy guns. (#152)

Content.Client/GameObjects/Components/Weapons/Ranged/BallisticMagazineVisualizer2D.cs

@@ -0,0 +1,41 @@
+using Content.Shared.GameObjects.Components.Weapons.Ranged;
+using Content.Shared.Utility;
+using SS14.Client.GameObjects;
+using SS14.Client.Interfaces.GameObjects.Components;
+using SS14.Shared.Utility;
+using YamlDotNet.RepresentationModel;
+
+namespace Content.Client.GameObjects.Components.Weapons.Ranged
+{
+    public sealed class BallisticMagazineVisualizer2D : AppearanceVisualizer
+    {
+        private string _baseState;
+        private int _steps;
+
+        public override void LoadData(YamlMappingNode node)
+        {
+            base.LoadData(node);
+
+            _baseState = node.GetNode("base_state").AsString();
+            _steps = node.GetNode("steps").AsInt();
+        }
+
+        public override void OnChangeData(AppearanceComponent component)
+        {
+            var sprite = component.Owner.GetComponent<ISpriteComponent>();
+
+            if (!component.TryGetData(BallisticMagazineVisuals.AmmoCapacity, out int capacity))
+            {
+                return;
+            }
+            if (!component.TryGetData(BallisticMagazineVisuals.AmmoLeft, out int current))
+            {
+                return;
+            }
+
+            var step = ContentHelpers.RoundToLevels(current, capacity, _steps);
+
+            sprite.LayerSetState(0, $"{_baseState}-{step}");
+        }
+    }
+}