Add render trait for Mammoth Mk II.

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

@@ -444,6 +444,7 @@
     <Compile Include="Render\WithVoxelTurret.cs" />
     <Compile Include="Render\WithVoxelBody.cs" />
     <Compile Include="Render\WithVoxelBarrel.cs" />
+    <Compile Include="Render\WithVoxelWalkerBody.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.FileFormats\OpenRA.FileFormats.csproj">

OpenRA.Mods.RA/Render/WithVoxelWalkerBody.cs

@@ -0,0 +1,69 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2013 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.Collections.Generic;
+using System.Linq;
+using OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Mods.RA.Move;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA.Render
+{
+	public class WithVoxelWalkerBodyInfo : ITraitInfo, Requires<RenderVoxelsInfo>, Requires<MobileInfo>
+	{
+		public readonly int TickRate = 5;
+		public object Create(ActorInitializer init) { return new WithVoxelWalkerBody(init.self, this); }
+	}
+
+	public class WithVoxelWalkerBody : IAutoSelectionSize, ITick
+	{
+		WithVoxelWalkerBodyInfo info;
+		Mobile mobile;
+		int2 size;
+		uint tick, frame, frames;
+
+		public WithVoxelWalkerBody(Actor self, WithVoxelWalkerBodyInfo info)
+		{
+			this.info = info;
+			mobile = self.Trait<Mobile>();
+
+			var body = self.Trait<IBodyOrientation>();
+			var rv = self.Trait<RenderVoxels>();
+
+			var voxel = VoxelProvider.GetVoxel(rv.Image, "idle");
+			frames = voxel.Frames;
+			rv.Add(new VoxelAnimation(voxel, () => WVec.Zero,
+			                           () => new[]{ body.QuantizeOrientation(self, self.Orientation) },
+			                           () => false, () => frame));
+
+			// Selection size
+			var rvi = self.Info.Traits.Get<RenderVoxelsInfo>();
+			var s = (int)(rvi.Scale*voxel.Size.Aggregate(Math.Max));
+			size = new int2(s, s);
+		}
+
+		public int2 SelectionSize(Actor self) { return size; }
+
+		public void Tick(Actor self)
+		{
+			if (mobile.IsMoving)
+				tick++;
+
+			if (tick < info.TickRate)
+				return;
+
+			tick = 0;
+			if (++frame == frames)
+				frame = 0;
+		}
+	}
+}