Allow tilesets to specify their sheet size.

Decreased the default size from 4096 to 512.

OpenRA.FileFormats/Map/TileSet.cs

@@ -77,6 +77,7 @@ namespace OpenRA.FileFormats
 	{
 		public string Name;
 		public string Id;
+		public int SheetSize = 512;
 		public string Palette;
 		public string PlayerPalette;
 		public string[] Extensions;
@@ -85,7 +86,7 @@ namespace OpenRA.FileFormats
 		public Dictionary<ushort, TileTemplate> Templates = new Dictionary<ushort, TileTemplate>();
 		public string[] EditorTemplateOrder;
 
-		static readonly string[] fields = {"Name", "TileSize", "Id", "Palette", "Extensions"};
+		static readonly string[] fields = {"Name", "TileSize", "Id", "SheetSize", "Palette", "Extensions"};
 
 		public TileSet() {}
 

OpenRA.Game/Graphics/Theater.cs

@@ -42,11 +42,10 @@ namespace OpenRA.Graphics
 			Func<Sheet> allocate = () =>
 			{
 				if (allocated)
-					throw new SheetOverflowException("Terrain sheet overflow");
+					throw new SheetOverflowException("Terrain sheet overflow. Try increasing the tileset SheetSize parameter.");
 				allocated = true;
 
-				// TODO: Use a fixed sheet size specified in the tileset yaml
-				return SheetBuilder.AllocateSheet();
+				return new Sheet(new Size(tileset.SheetSize, tileset.SheetSize));
 			};
 
 			templates = new Dictionary<ushort, Sprite[]>();

mods/d2k/tilesets/arrakis.yaml

@@ -1,6 +1,7 @@
 General:
 	Name: Arrakis
 	Id: ARRAKIS
+	SheetSize: 1024
 	Palette: d2k.pal
 	Extensions: .bas,.bat,.bgb,.ice,.tre,.was,.ext,.shp