diff --git a/OpenRa.Game/OpenRa.Game.csproj b/OpenRa.Game/OpenRa.Game.csproj
index 31029a5c52..d4946ddac4 100644
--- a/OpenRa.Game/OpenRa.Game.csproj
+++ b/OpenRa.Game/OpenRa.Game.csproj
@@ -44,6 +44,7 @@
     </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="TileSheetBuilder.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRa.FileFormats\OpenRa.FileFormats.csproj">
diff --git a/OpenRa.Game/TileSheetBuilder.cs b/OpenRa.Game/TileSheetBuilder.cs
new file mode 100644
index 0000000000..e8f26ac01e
--- /dev/null
+++ b/OpenRa.Game/TileSheetBuilder.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Drawing;
+
+namespace OpenRa.Game
+{
+	// T is probably going to be BluntDirectX.Direct3D.Texture
+
+
+	public delegate T Provider<T>();
+
+	class TileSheetBuilder<T>
+		where T : class
+	{
+		readonly Size pageSize;
+		readonly Provider<T> pageProvider;
+
+		public TileSheetBuilder(Size pageSize, Provider<T> pageProvider)
+		{
+			this.pageSize = pageSize;
+			this.pageProvider = pageProvider;
+		}
+
+		public SheetRectangle<T> AddImage(Size imageSize)
+		{
+			throw new NotImplementedException();
+		}
+	}
+
+	public class SheetRectangle<T>
+		where T : class
+	{
+		readonly PointF origin;
+		readonly SizeF size;
+		readonly T sheet;
+
+		internal SheetRectangle(T sheet, PointF origin, SizeF size)
+		{
+			this.origin = origin;
+			this.size = size;
+			this.sheet = sheet;
+		}
+	}
+}