fixed #42 -- show harvester fullness in sprites

OpenRA.Mods.RA/Harvester.cs

@@ -88,6 +88,7 @@ namespace OpenRA.Mods.RA
 
 		public bool IsFull { get { return contents.Values.Sum() == Info.Capacity; } }
 		public bool IsEmpty { get { return contents.Values.Sum() == 0; } }
+		public float Fullness { get { return (float)contents.Values.Sum() / Info.Capacity; } }
 		
 		public void AcceptResource(ResourceType type)
 		{

OpenRA.Mods.RA/OpenRA.Mods.RA.csproj

@@ -354,6 +354,7 @@
     <Compile Include="AnnounceOnKill.cs" />
     <Compile Include="CrushableInfantry.cs" />
     <Compile Include="Render\WithSmoke.cs" />
+    <Compile Include="Render\RenderHarvester.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.FileFormats\OpenRA.FileFormats.csproj">

OpenRA.Mods.RA/Render/RenderHarvester.cs

@@ -0,0 +1,50 @@
+#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.Collections.Generic;
+using System.Linq;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+using OpenRA.Mods.RA.Orders;
+
+namespace OpenRA.Mods.RA.Render
+{
+	class RenderHarvesterInfo : RenderUnitInfo, Requires<HarvesterInfo>
+	{
+		public readonly string[] ImagesByFullness = { "harvempty", "harvhalf", "harv" };
+		public override object Create(ActorInitializer init) { return new RenderHarvester(init.self, this); }
+	}
+
+	class RenderHarvester : RenderUnit
+	{
+		Harvester harv;
+		RenderHarvesterInfo info;
+		
+		public RenderHarvester(Actor self, RenderHarvesterInfo info) : base(self) 
+		{
+			this.info = info;
+			
+			harv = self.Trait<Harvester>();
+			foreach( var image in info.ImagesByFullness )
+				new Animation( image );	/* just force these to get loaded upfront */
+		}
+
+		public override void Tick(Actor self)
+		{
+			var desiredState = (int)(harv.Fullness * (info.ImagesByFullness.Length - 1));
+			var desiredImage = info.ImagesByFullness[desiredState];
+
+			if (anim.Name != desiredImage)
+				anim.ChangeImage( desiredImage, "idle" );
+
+			base.Tick(self);
+		}
+	}
+}

mods/ra/rules/vehicles.yaml

@@ -224,7 +224,7 @@ HARV:
 		Speed: 6
 	RevealsShroud:
 		Range: 4
-	RenderUnit:
+	RenderHarvester:
 	-AttackMove:
 	GpsDot:
 		String:Harvester

mods/ra/sequences.yaml

@@ -396,6 +396,37 @@ harv:
 	dock-loop:
 		Start: 104
 		Length: 7
+
+harvhalf:
+	idle:
+		Start: 0
+		Facings: 32
+	harvest:
+		Start: 32
+		Length: 8
+		Facings: 8
+	dock: harv
+		Start: 96
+		Length: 8
+	dock-loop: harv
+		Start: 104
+		Length: 7
+
+harvempty:
+	idle:
+		Start: 0
+		Facings: 32
+	harvest:
+		Start: 32
+		Length: 8
+		Facings: 8
+	dock: harv
+		Start: 96
+		Length: 8
+	dock-loop: harv
+		Start: 104
+		Length: 7
+
 1tnk:
 	idle:
 		Start: 0