Hook up tib storage bar

OpenRA.Mods.Cnc/Widgets/SiloBarWidget.cs

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+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using System.Drawing;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.RA.Widgets
+{
+	public class SiloBarWidget : Widget
+	{
+		public float LowStorageThreshold = 0.8f;
+		float? lastCapacityFrac;
+		float? lastStoredFrac;
+
+		readonly PlayerResources pr;
+		[ObjectCreator.UseCtor]
+		public SiloBarWidget( [ObjectCreator.Param] World world )
+		{
+			pr = world.LocalPlayer.PlayerActor.Trait<PlayerResources>();
+		}
+
+		public override void DrawInner()
+		{
+			float scaleBy = 100;
+			var max = Math.Max(pr.OreCapacity, pr.Ore);
+			while (max >= scaleBy) scaleBy *= 2;
+
+			// Current capacity
+			var capacityFrac = pr.OreCapacity / scaleBy;
+			lastCapacityFrac = capacityFrac = float2.Lerp(lastCapacityFrac.GetValueOrDefault(capacityFrac), capacityFrac, .3f);
+
+			var color = Color.LimeGreen;
+			if (pr.Ore >= LowStorageThreshold*pr.OreCapacity)
+				color = Color.Orange;
+			if (pr.Ore == pr.OreCapacity)
+				color = Color.Red;
+			
+			var b = RenderBounds;
+			var rect = new RectangleF(Game.viewport.Location.X + b.X,
+			                          Game.viewport.Location.Y + b.Y + (1-capacityFrac)*b.Height,
+			                          (float)b.Width,
+			                          capacityFrac*b.Height);
+			Game.Renderer.LineRenderer.FillRect(rect, color);
+			
+			var indicator = ChromeProvider.GetImage("sidebar-bits", "right-indicator");
+			
+			var storedFrac = pr.Ore / scaleBy;
+			lastStoredFrac = storedFrac = float2.Lerp(lastStoredFrac.GetValueOrDefault(storedFrac), storedFrac, .3f);
+			
+			float2 pos = new float2(b.X, b.Y + (1-storedFrac)*b.Height - indicator.size.Y / 2);
+			
+			Game.Renderer.RgbaSpriteRenderer.DrawSprite(indicator, pos);
+		}
+	}
+}